JP2988870B2 - Vertical conveyor device and excavated soil unloading method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical conveyor device and a method for unloading excavated soil, and more particularly to a vertical conveyor device and a method for unloading excavated soil that can easily cope with a change in excavation depth during excavation work.

[0002]

BACKGROUND OF THE INVENTION In general,
When excavating a shaft, excavated soil must be carried to the ground with the excavation.

[0003] As a means for carrying such excavated soil to the ground, a method of carrying it to the ground using a clamshell or a vessel has been adopted.

However, when the excavated soil is carried out to the ground using a clamshell or a vessel, the excavated soil is transported from the excavation work position and loaded, and the excavated soil is loaded and unloaded by operating a crane on the ground. Is required, and there is a problem that a large number of workers are required to perform work at the excavation position and on the ground.

In addition, when a crane is used, there is a problem that as the excavation depth increases, the time required for hoisting and unwinding becomes longer, so that the unloading capacity decreases and the unloading time becomes longer.

Further, when the excavated soil is carried out, the excavation work must be interrupted, and as the excavation depth increases, the interruption time of the excavation operation becomes longer and the construction period becomes longer.

Further, since most of the devices are made of metal, there is a problem that noise is generated.

A method of carrying excavated soil to the ground using a fixed bucket conveyor has also been adopted, but in this case, there is a problem that it is difficult to cope with a change in depth due to excavation. .

Also, in this case, as in the case described above, since most of the device is made of metal, there is a problem that noise is generated.

The present invention has been made to solve the above problems, and has as its object to reduce the number of workers,
Provided are a vertical conveyor device and an excavated soil unloading method capable of continuously unloading conveyed objects, reducing noise, and easily adapting to changes in the distance between a loading position and an unloading height position. It is in.

Another object of the present invention is to use a belt conveyor with a crosspiece having a horizontal portion and a vertical portion bent down from the horizontal portion, and move the end of the horizontal portion to raise and lower the lower end of the vertical portion. In addition, the present invention provides a vertical conveyor device and a method for unloading excavated soil that can move the end of the horizontal portion easily and in a short time, and can further increase the vertical distance of the vertical portion. It is in.

Still another object of the present invention is to provide a stable supporting state at a relatively low cost, a small installation site, and space saving. It is an object of the present invention to provide a vertical conveyor device and a method for unloading excavated soil, which can make the loading position variable, and can omit a device and a time for transporting and accumulating the transported objects from the work position to the loading position.

[0013]

In order to achieve the above object, an invention according to claim 1 is characterized in that a horizontal portion is provided at a carry-out height position in a horizontal direction and a loading height is bent from the horizontal portion. A belt conveyor having a vertical portion disposed vertically to a vertical position, an unloading belt conveyor for transporting a conveyed object conveyed by the crossed belt conveyor to an unloading position, and a crossed belt conveyor. A gantry for placing and supporting the horizontal portion and the unloading belt conveyor, and movably pulling and supporting the end of the horizontal portion of the crossed belt conveyor,
A traction device for varying the length of the vertical portion, wherein arranged on the lower end of the vertical portion, viewed contains a supply loading device carried object to the crosspiece with belt conveyor, said crosspiece with belt conveyor , said from the vertical portion in the vicinity of the bent portion to the horizontal portion, said a vertical conveyor having a delivery unit for a transported object passed to the discharge conveyor belt, wherein - with Centering Flange
Conveyor belt of the belt conveyor
The side part has an extra margin, and on the feed side of the horizontal part,
With a roller whose length is equal to the margin of the
Surface ears surplus width portion of the serial belt body is supported, the horizontal
On the return side of the belt, a length corresponding to the margin of the ear of the belt body
The width of the back of the belt body
Is supported, and the roller on the return side is
From the support position to the retreat position.
Characterized in that that.

According to the present invention, the conveyed object is continuously transferred from the loading height position at the lower end of the vertical portion to the unloading height position by the crossed belt conveyor having the horizontal portion and the vertical portion. In addition, with the unloading belt conveyor disposed below the crossed belt conveyor, the unloading position can be reliably transported to the unloading position, and the transported object is continuously transported without requiring the unloading side operator. Further, since the conveyor belt of the belt conveyor is generally made of a rubber material, the state can be reduced in noise.

Further, the lower end of the vertical portion can be raised and lowered by moving the end of the horizontal portion towed and supported by the towing device by the towing device, so that the distance between the loading position and the unloading height position can be adjusted. It can easily respond to changes.

Further, by providing a transfer section for transferring the conveyed object to the unloading belt conveyor near the bent portion from the vertical portion to the horizontal portion of the belt conveyor with rails, the transfer portion is provided immediately after the vertical portion reaches the horizontal portion. The transported object can be delivered to the unloading belt conveyor, and thereafter, the horizontal portion can be in a state where no transported object is loaded.

That is, when an object to be conveyed is loaded in the horizontal portion, the load of the object to be conveyed is applied to the conveyor belt on the feed side on which the object is loaded. Must support the conveyor belt on the feed side in the horizontal section with rollers having a length that spans the entire width thereof.If such a long roller is used in the horizontal section, the horizontal section supported by the traction device When the end of the horizontal portion is to be moved in the lowering direction of the lower end of the vertical portion, the end of the horizontal portion cannot be moved because the long roller is in the way.

Therefore, in order to move the end of the horizontal portion, it is necessary to carry out a work of removing a long and heavy roller supporting the conveyor belt on the feed side.
When returning the end of the horizontal part to the opposite direction, it is necessary to work to attach a heavy roller.
A great deal of labor and time is required for the removal work.

On the other hand, when the transported object is not loaded on the horizontal portion as in the present invention, the load of the transported object is not applied to the conveyor belt. When the length of the vertical portion is changed by moving the end of the horizontal portion towed and supported by the towing device, the short, relatively light material can sufficiently support the conveyor belt. The roller can be easily removed and attached, and the vertical lower end can be easily moved up and down in a short time.

[0020]

Further, according to the present invention, by merely rotating the return roller horizontally to the retracted position, the end of the horizontal portion is moved in the descending direction of the vertical portion without disturbing the feed and return rollers. The vertical portion can be lowered more easily and in a short time without removing the roller.

Further, the support state of the conveyor belt can be easily obtained simply by rotating the return roller horizontally to the support position.

[0023] According to a second aspect of the invention, Te placed <br/> to claim 1, wherein the cradle, gates having a horizontal rack portion, and a pair of Kaashi formed at both ends of the horizontal rack portion It is formed in a shape, and is installed so as to straddle at least the loading work area of the transported object.

According to the present invention, a stable supporting state can be obtained even though the vertical portion is supported in a suspended state by forming the gantry into a gate shape. Since the installation is performed across the loading area of the conveyed articles, the installation site can be reduced.

According to a third aspect of the present invention, in the second aspect , the gantry is horizontally movable in a direction intersecting the length direction of the gantry on a loading work area of the load. It is characterized by.

According to the present invention, there is provided an apparatus for changing the loading position of an object to be transported and moving the object to the loading position by changing the position of the vertical portion by moving the gantry. This eliminates the necessity and eliminates the time required for accumulating the objects to be conveyed, thereby improving the conveyance efficiency.

According to a fourth aspect of the present invention, in any one of the first to third aspects, the horizontal portion variably changes a position of the vertical portion and extends on the horizontal frame portion in a longitudinal direction of the horizontal frame portion. It is characterized by being movable along.

According to the present invention, the apparatus for changing the loading position of the article to be transported and moving the article to the loading position by changing the position of the vertical section by moving the horizontal section. Can be eliminated, and the time for stacking the objects to be transported can be eliminated, and the transport efficiency can be improved.
In particular, by combining the movement of the gantry and the movement of the horizontal portion, the loading position can be changed more widely, and the transport efficiency can be further improved.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the horizontal portion has a bent portion with the vertical portion at an intermediate portion, and both ends of the horizontal portion are movable. It is characterized by being supported by towing.

According to the present invention, by moving both ends of the horizontal portion, it is possible to secure a sufficient vertical distance of the lower end of the vertical portion.

According to a sixth aspect of the present invention, in any one of the first to fifth aspects of the present invention, the belt conveyor with a crosspiece is configured such that a part of the conveyor belt is fixed to a conveyor belt of a horizontal portion, An extendable portion is formed which is wound around the movable-side winding means which can be approached and separated from the fixed-side winding means, and the length of the vertical portion is made variable by the elastic portion. It is characterized by.

According to the present invention, the change in the distance between the loading position and the unloading height position can be more easily coped with by adjusting the amount of winding of the conveyor belt in the expansion and contraction section.

In particular, since the expansion and contraction portion is provided so as to be wound around a part of the horizontal portion, the length of the horizontal portion can be increased without increasing the length.
Space saving can be realized, and the present invention can be applied to a case where a large installation site cannot be secured.

According to a seventh aspect of the present invention, there is provided a horizontal portion mounted and supported on a gantry installed on a ground portion in a state in which the end portion is movably supported by the traction means, and bent from the horizontal portion. Using a belt conveyor with a crosspiece having a vertical portion disposed in a hanging state on the excavation portion, and excavating soil excavated by the excavation portion from a loading device disposed at a lower end portion of the vertical portion, at least the vertical portion A method for carrying out excavated soil, wherein the excavated soil is carried out to a carry-out position by taking out the excavated soil by a carry-out belt conveyor disposed on the gantry at the ground portion, and Is positioned in the vicinity of the unloading belt conveyor and is driven in the feeding direction, and the feeding-side conveyor belt is moved forward above the vertical-portion-side end of the unloading belt conveyor. A step of performing excavation of a predetermined depth and carrying out the excavated soil while delivering the excavated soil to the carry-out belt conveyor, and Depending on
Moving the end of the horizontal part by the towing means to lower the lower end of the vertical part, and repeating the above steps, excavating a predetermined depth sequentially and carrying out excavated soil. look including the ends of the horizontal portion by said pulling means
Moving the lower end of the vertical portion down
Is the bell of the conveyor belt on the feed side of the horizontal part.
Roller to support the extra width of the front ears of the
On the return side of the horizontal portion, the rear surface of the belt body
The roller at the moving position supporting the excess width portion is moved to the conveyor
Horizontal rotation from the belt support position to the retracted position
The end of the horizontal part is moved .

According to the present invention, the excavated soil is delivered to the carry-out belt conveyor immediately after reaching the horizontal portion from the vertical portion, at the transfer portion formed near the bent portion from the vertical portion to the horizontal portion of the belt conveyor with the crosspiece. After that, as the excavated soil is not loaded in the horizontal part, the load of the excavated soil is not applied to the conveyor belt, the roller supporting the conveyor belt is shortened, and the removal and installation of the roller is easy. It is possible to move the end of the horizontal part towed and supported by the towing device in the downward direction of the lower end of the vertical part, so that the lower end of the vertical part can be easily moved up and down in a short time.

Thus, it is possible to easily cope with a change in excavation depth accompanying the progress of excavation.

Further, the crossed belt conveyor having the horizontal portion and the vertical portion allows the excavated soil to be continuously transferred from the excavated portion at the lower end of the vertical portion to the ground portion. The excavated soil can be reliably transported to the unloading position by the unloading belt conveyor, and excavated soil can be transported continuously without the need for a worker on the unloading side. Is generally made of rubber, so that it can be in a state of low noise. In addition, return
Only by rotating the roller on the feed side horizontally to the retracted position.
The horizontal and return rollers do not interfere
Can be moved in the downward direction of the vertical part,
Even easier and shorter without removing the rollers
The vertical descent can be done in time. Also the return side
By simply moving the rollers horizontally to the support position,
The state of support of the conveyor belt is obtained.

According to an eighth aspect of the present invention, in accordance with the seventh aspect , the gantry has a gate-like shape installed over the digging portion, and intersects the length of the gantry on the digging portion. The position of the vertical portion in the excavation portion is changed by horizontally moving the gantry, and the excavation portion around the vertical portion is excavated at each position.

According to the present invention, the conveyer belt with the crosspiece is stably supported by the gantry, the installation site is small, and the gantry is moved to make the position of the vertical portion variable, so that the excavated soil can be accumulated. By changing the loading position, a device and time for transporting and accumulating excavated soil to the loading position are not required, and the transport efficiency can be improved.

The invention of claim 9, wherein, in claim 8, wherein said horizontal portion, vary the position of the vertical portion, is movable on said frame along the length of the frame, the horizontal The position of the vertical part is changed by moving the part on a gantry, and a digging part around the vertical part is excavated at each position.

According to the present invention, the apparatus for changing the loading position of excavated soil by moving the horizontal portion and changing the position of the vertical portion, and transporting and accumulating the excavated soil to the loading position. In addition, time and time are not required, and the transport efficiency can be improved. In particular, by combining the movement of the gantry and the movement of the horizontal portion, the loading position can be changed more widely, and the transport efficiency can be further improved.

The invention according to claim 10 is the invention according to claim 8 or
9 , the horizontal portion has a bent portion with the vertical portion at an intermediate portion, and both end portions are movably supported by the traction device, and the traction device is provided by the traction device according to the digging depth of the digging portion. One end or both ends of the horizontal portion are moved to lower the lower end of the vertical portion.

According to the present invention, it is possible to easily cope with excavation at a deeper excavation portion.

The eleventh aspect of the present invention relates to the seventh to tenth aspects.
In any one of the above, a part of the conveyor belt is entangled and formed on a conveyor belt in a horizontal portion of the crossed belt conveyor, and the length of the vertical portion is made variable by pulling out the entrained conveyor belt. Forming a telescopic part, after excavating the excavating part of the predetermined depth, pulling out the conveyor belt of the telescopic part, and lowering the lower end of the vertical part, while horizontally moving the vertical part sequentially,
Further, the excavation part is excavated to a predetermined depth . ADVANTAGE OF THE INVENTION According to this invention, it can respond | correspond to the excavation of a stepwise excavation part more easily, and can implement | achieve a space saving, without lengthening the length of a horizontal part.

[0045]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings.

FIGS. 1 to 6 are views showing a state in which the vertical conveyor device according to the first embodiment of the present invention is used to carry out excavated soil when excavating a shaft.

This shaft, as shown in FIGS. 1 and 2,
An earth retaining wall 12 is formed around the shaft formation area from the ground part 10, and an inner area of the earth retaining wall 12 is excavated at a predetermined depth, and an earth retaining wall is formed on the earth retaining wall 12 in the excavation part 14, for example, An uprising member 16 is attached, and a cutting beam 18 is provided between the uprising members 16 so as to be able to resist earth pressure.

Then, a vertical conveyor device 20 is arranged from the ground portion 10 into the excavation portion 14.

The vertical conveyor device 20 supports the gantry 22 on the ground unit 10 via the gantry 24,
A belt conveyor 26 with a rail, an electric winch 28 as a traction device, a carry-out belt conveyor 30, and a screw feeder 32 as a loading device are supported.

The gantry 22 is provided in a state where the end on the side of the excavation part 14 projects above the excavation part 14.
An excavated soil pit 34 is provided below the end opposite to the fourth side.

As shown in FIG. 3, the belt conveyor 26 has a wavy elastic vertical rail 40 near the both sides of the surface of a flat belt-shaped belt body 38 along the length direction. The horizontal rails 42 are provided at predetermined intervals between the vertical rails 40, and a storage section 44 is formed by the vertical rails 40 and the horizontal rails 42.

Further, a margin portion 46 is formed on both sides of the belt body 38 in the width direction.

[0053] In addition, the crosspiece with the belt conveyor 26, as shown in FIGS. 1, 2 and 6, on the frame 22, pedestal 2
2 and a vertical portion 48 which is bent at a right angle from an end of the horizontal portion 48 on the side of the excavation portion 14 and is vertically disposed to an excavation position in the excavation portion 14. Part 5
0.

The horizontal portion 48 is driven by a driving device 80, which can be moved along a rail 84 disposed on the gantry 22 in the longitudinal direction thereof, to the electric winch 28 attached to the end of the gantry 22. The conveyor belt 36 is supported by a driving pulley 58 provided on the driving device 80.

In the horizontal section 48, the conveyor belt 36 is supported by a plurality of rollers 60a and 60b arranged at a predetermined interval.

The vertical portion 50 is provided with a deflection pulley 56 at the upper end.
Is bent from one end of the horizontal part 48 so as to be in a hanging state. A tail part bent horizontally along the surface of the excavated ground by a bending pulley 56 at the lower end is provided at the lower end of the vertical part 50. 52 are formed. Note that a tail pulley 54 is provided at an end of the tail portion 52.

The driving pulley 58 is rotated counterclockwise by the driving device 80 as shown by the arrow A in FIG.
Is positioned in the vicinity of the carry-out belt conveyor 30 (the lower side in the figure for the horizontal part 48 and the right side in the figure for the vertical part 50), is driven in the feed direction B, and carries out the conveyor belt 36 on the return side. It is positioned on the side away from the belt conveyor 30 (upper side in the figure for the horizontal section 48, left side in the figure for the vertical section 50) and driven in the return direction C.

Therefore, in the conveyor belt 36 on the feed side in the vertical section 50, the storage section 44 is located on the right side in the figure, so that the tail section 52 is formed by bending the tail section 52 to the right side in the figure. Excavated soil can be reliably supplied into the storage section 44.

In this case, the conveyor belt 36 on the upper side of the tail portion 52 is disposed substantially horizontally, but the conveyor belt 36 on the upper side is slightly inclined upward to the left in the figure to be disposed. The excavated soil can be more reliably supplied to the storage section 44 (not shown).

Further, a belt conveyor 26 with a crosspiece is provided.
In the vicinity of the bent portion from the vertical portion 50 to the horizontal portion 48, a transfer portion 62 for transferring excavated soil stored in the storage portion 44 of the conveyor belt 36 to the unloading belt conveyor 30 is formed.

The transfer section 62 is formed adjacent to the horizontal section 48 side of the variable-angle pulley 56 that bends and supports the conveyor belt 36 on the feed side from the vertical section 50 to the horizontal section 48. A plurality of (three in this example) bending rollers 64 are provided on the feed-side conveyor belt 36 located above the end of the vertical section 50 on the side of the 30 to ensure that the opening of the storage section 44 faces downward. A bent bent portion 66 is provided.
Between the conveyor belt 30 and the discharge belt conveyor 30
Is arranged.

Therefore, the excavated soil conveyed to the upper end of the vertical portion 50 by the conveyor belt 36 on the feed side of the vertical portion 50 immediately passes the position of the variable-angle pulley 56 at the upper end, and is transferred to the position of the transfer bending portion 66. The conveyor belt 36 is transferred from the inside of the storage unit 44 to the unloading belt conveyor 30 via the receiving chute 68, and is not loaded with excavated soil. Is to be moved.

Therefore, in the horizontal portion 48, the rollers 60a and 60b do not need to receive the load of the excavated soil on both the feed side and the return side, and need only receive the load of the conveyor belt 36. As shown in FIG. 4, each of the rollers 60 a and 60 b has a short length corresponding to the margin 46 of the ear of the belt body 38.
The feed roller 60a is in contact with the front margin 46 of the belt body 38, and the return roller 60b is in contact with the rear margin 46 of the belt body 38 to support the conveyor belt 36. .

By using such short rollers 60a and 60b, on the feed side, the driving device 80 can pass between the rollers 60a while keeping the rollers 60a as they are.
On the return side, the drive device 8 is removed by removing the roller 60b.
In this case, the end of the conveyor belt 36 can be passed during the movement of zero.

In this case, when removing the return roller 60b, the roller 60b is short and relatively light, so that the removal can be performed easily and in a short time.

The return roller 60b may be configured, for example, as shown in FIG. 5 in place of the above-described state, so that the trouble of removing the roller 60b can be eliminated.

That is, the return roller 60b is
It is attached to one end of a shaft 130 bent in an L-shape, and the other end of the shaft 130 is rotatably inserted and supported in a support tube 134 attached to a support frame 132 of the gantry 22. .

A substantially rectangular stopper plate 136 is attached to the other end of the shaft 132, and the stopper plate 13 is attached to the support frame 132.
A pair of holding plates 138 are attached at positions sandwiching the roller 6, and the stopper plate 136 and the holding plate 138 are engaged to prevent rotation of the roller 60b.

When the conveyor belt 36 is to be supported, as shown in FIG. 5A, the roller 60b is positioned at the support position with the roller 60b protruding toward the conveyor belt 36, and In the case of moving
As shown in (2), slightly raise the roller 60b,
When the roller 60b is rotated horizontally by 180 degrees to the retracted position and lowered below in a state where the stopper plate 136 is disengaged from the press plate 138, the press plate 136 and the stopper plate 138 are engaged and positioned. The Rukoto.

The electric winch 28 is connected to a driving device 80 by a wire rope 86, and by extending and contracting the wire rope 86, the driving device 80 is moved along the rail 84 within the range of the moving distance L shown in FIG. It is possible to move, and the length of the vertical portion 50 is expanded and contracted by an amount corresponding to the moving distance L,
The lower end can be moved up and down.

The unloading belt conveyor 30 is disposed on the gantry 22 below the horizontal portion 48 of the crossed belt conveyer 26 so as to overlap with the horizontal portion 48, and is excavated soil conveyed by the crossed belt conveyer 26. Receiving
The excavated soil 1 is transported to the excavated soil pit 34 which is the carry-out position.
14 is dropped into the excavated soil pit 34.

The carry-out belt conveyor 30 is constituted by a flat belt conveyor.

The screw feeder 32 is provided with the input hopper 7
0 are integrally formed and are supported by the frame 72.

A tail pulley 54, a variable-angle pulley 56, and the like of the tail portion 52 are attached and fixed to the frame 72, and the tail portion 52 and the screw feeder 32 are integrated.

The frame 72 is connected to the driving device 80 via a wire rope 74 at a plurality of positions, and is suspended and held by the driving device 80 via the wire rope 74 as the driving device 80 moves.

In this case, since the loading device including the screw feeder 32 is suspended, the belt conveyor
A suitable tension acts on the conveyor belt 36 of No. 6 to hold the crossed belt conveyor 26, particularly the vertical portion 50, at a predetermined position, and can prevent adverse effects such as blurring.

Next, a method of unloading excavated soil using the vertical conveyor device 20 will be described.

First, in the first excavation stage, as shown in FIG. 1, the area surrounded by the retaining wall 12 constructed in the shaft formation area is excavated to a predetermined depth by excavating means such as a backhoe, and The belly material 16 and the cutting beam 18 are provided, and the tail 52 and the screw feeder 32 of the belt conveyor 26 are installed on the excavated surface.

After the second excavation, the excavated soil is injected into the input hopper 70 of the screw feeder 32 while excavating the excavated surface of the excavation section 14.

The excavated soil injected into the input hopper 70
By the screw feeder 32, a predetermined amount is dropped on the conveyor belt 36 of the tail part 52 and stored in the storage part 44.

The excavated soil received by the tail portion 52 is moved by the conveyor belt 36 and stored in the storage portion 44 so that the feed side of the vertical portion 50 rises as shown in the feed direction B. It is conveyed to the upper end of 50.

In this case, the conveyor belt 36 on the feed side of the vertical portion 50 is driven in a state in which it is located on the side adjacent to the carry-out conveyor belt 30, and the storage portion 44 is located on the right side in the figure.
Rise.

At the upper end of the vertical portion 50, the conveyor belt 36 on the feed side is deflected to the horizontal portion 48 by the deflector pulley 56 at the upper end, and immediately passes through the transfer portion 62.

In the transfer section 62, a plurality of bending rollers 6
4, the excavated soil in the storage portion 44 is thrown into the receiving chute 68 at the position of the transfer bending portion 66 so that the opening of the storage portion 44 is directed downward surely. From the conveyor belt 30.

Thereafter, in the empty state where no excavated soil is loaded, the conveyor belt 36 moves on the feed side and the return side of the horizontal section 48, moves on the return side of the vertical section 50, and Move to the bottom.

The excavated soil dropped onto the unloading belt conveyor 30 is driven into the excavated soil pit 34 from the end of the unloading belt conveyor 30 by driving the unloading belt conveyor 30.

In this way, the excavated soil is removed from the excavated soil pit 3
The digging surface of the digging section 14 is excavated to a predetermined depth while being continuously carried out to the digging section 4.

Then, every time the excavation surface of the excavation section 14 is excavated to a predetermined depth, as shown in FIG. 2, a belly material 16 and a cutting beam 18 are arranged on the retaining wall 12.

In parallel with this operation, the wire rope 86 is extended by the electric winch 28, and the driving device 80 is moved toward the excavation portion 14 by the excavation depth, so that the length of the vertical portion 50 of the belt conveyor 26 with a crosspiece is increased. Extend the tail 52
Then, the screw feeder 32 is lowered integrally and installed on the excavation surface of the excavation unit 14.

In this case, when the driving device 80 is moved, the roller 60 does not need to receive the load of the excavated soil on the feed side and the return side in the horizontal portion 48, Since the length corresponding to the width 46 is short, the driving device 80 can freely pass between the rollers 60 without the rollers 60 being in the way, and the removal of the rollers 60 is not required. The work for moving is performed easily and in a short time.

Thereafter, the same steps as described above are repeated, and the excavated soil is carried out to the excavated soil pit 34 by the vertical conveyor device 20 while excavating to a predetermined depth.

[0092] By repeating such a process, a shaft can be formed by sequentially excavating to a desired depth.

When the length of the conveyor belt 36 becomes short, it can be easily dealt with by adding the conveyor belt 36.

In this case, if the work of adding the conveyor belt 36 is performed during the installation work of the earth retaining shoring, the construction can be continued without interrupting the construction work of the shaft.

FIGS. 7 to 9 are views showing a state in which the excavated soil is carried out by using the vertical conveyor device according to the second embodiment of the present invention.

In the vertical conveyor device 88 according to this embodiment, the pedestal 90 is composed of a horizontal frame 92 and the horizontal frame 9.
2 and a pair of pedestals 94 formed at both ends thereof, and on the ground unit 10 via the pair of pedestals 94 so that the horizontal pedestal 92 straddles the excavation part 14. It is in the installed state.

As shown in FIG. 9, the pair of pedestals 94
The pedestal 94 is engaged with and supported by a pair of rails 96 disposed in parallel with the ground part 10 at the peripheral position of the excavation part 14, and the pedestal 94 is moved in parallel along the rails 96 by a driving device (not shown) to The portion 92 can move horizontally in a direction intersecting the length direction.

In the belt conveyor 26 with a crosspiece, the horizontal portion 48 is made movable along the length of the horizontal frame 92, and the vertical portion 50 is made variable in the length direction of the horizontal frame 92. I have.

That is, the rail 98 is provided along the length direction of the horizontal frame 92, and the carriage 100 is movably engaged and supported on the rail 98 by a driving device (not shown). .

A rail 102 is provided on the carriage 100 along its length direction.
2 is in a state where the driving device 80 is instructed to engage and is towed and supported by the electric winch 28.

Further, the bending pulley 56 at the bent portion between the horizontal portion 48 and the vertical portion 50 and the bending roller 6 at the transfer portion 62
4 and the receiving chute 68 are also movable together with the carriage 100.

Therefore, when the carriage 100 moves on the horizontal frame 92, the horizontal section 48 moves and the vertical section 50 is made variable in the length direction of the horizontal frame 92, and the electric winch 28 is moved. The driving device 80 is connected to the carriage 10
The length of the vertical portion 50 is made variable by moving it on zero.

The unloading belt conveyor 30 is disposed at a position lateral to the horizontal frame 92 in parallel with the horizontal frame 92 so as not to hinder the vertical section 50 from moving as the horizontal section 48 moves. ing.

The excavated soil is conveyed from the delivery section 62 to the carry-out belt conveyor 30 by the delivery belt conveyor 104 movable together with the carriage 100.

Further, an excavated soil pit 34, which is an unloading position, is provided at an end of the unloading belt conveyor 30 on the ground portion 10 side.
A first pit conveyor belt conveyor 106 along the outer periphery of the excavation unit 10 and a second pit conveyor belt conveyor 108 perpendicular to the first pit conveyor belt 108 are disposed until the first pit conveyor belt 106 (see FIG. 9).
Unloading belt conveyor 30 at the pit transport belt conveyor 106 and the second pit transport belt conveyor 108
, The excavated soil is transported to the excavated soil pit 34 and dropped into the excavated soil pit 34.

Therefore, when such a vertical conveyor device is used, first, the gantry 90 is moved to a predetermined position along the rail 96, and the trolley 100 is moved to a predetermined position in the longitudinal direction on the horizontal gantry 92. Then, for example, as shown in FIG. 6, the position of the vertical portion 50 is positioned at a predetermined excavation position.

Then, while excavating the excavation surface of the excavation part 14 around the position where the tail part 52 of the vertical part 50 and the screw feeder 32 are installed, the excavated soil is transferred to the belt conveyor 26 with a crosspiece, the delivery belt conveyor 104 and the first Then, the excavated soil is carried out to the excavated soil pit 34 via the second pit transport belt conveyors 106 and 108.

Next, after excavation of a predetermined depth around the installation position of the first vertical part 50, the gantry 90 is
To the other position, or together with or independently of the movement of the gantry 90, the trolley 100 is moved to a predetermined position in the longitudinal direction on the horizontal gantry 92, and the position of the vertical part 50 is set to the initial installation position Then, as shown in FIG. 7, it is positioned at the next predetermined excavation position.

In this state, the excavated surface of the excavated portion 14 around the installation position of the vertical portion 50 is excavated to a predetermined depth, and the excavated soil is carried out to the excavated soil pit 34 in the same manner as described above.

Next, the position of the vertical portion 50 is changed,
The excavation around the vertical portion 50 and the removal of the excavated soil at the changed position are repeated to excavate the entire surface of the excavation portion 14 to a predetermined depth.

In this case, since the excavation of only the peripheral portion of the installed vertical portion 50 is repeated, the excavated soil can be directly loaded, and an apparatus for transporting and accumulating the excavated soil from the excavation position to the tail portion 52 is provided. Is unnecessary, the time required for accumulation can be omitted, and highly efficient transfer can be performed.

After excavating the entire surface of the excavation part 14 to a predetermined depth, the electric winch 28
By moving the driving device 80 to the vertical portion 50 side, as shown in FIG. 8, the length of the vertical portion 50 is increased to correspond to the excavation depth of the next stage. Then, the entire excavation part 14 is excavated, and the length of the vertical part 50 is further increased so that the excavation is sequentially repeated to a target depth.

The other configuration and operation are the same as those of the first embodiment, and the description is omitted.

The vertical conveyor device 88 according to the present embodiment is effective not only for the excavation work of the shaft but also for the case where the excavation work has a wide excavation area.

FIG. 10 is a view showing a state of unloading excavated soil using the vertical conveyor device according to the third embodiment of the present invention.

This embodiment shows a case where the vertical conveyor device 88 is used to carry out excavated soil when excavating a circular shaft.

In this vertical conveyor device 88, a gantry 90 is provided so as to straddle a circular excavation portion 110, and one pedestal 94 of the gantry 90 is rotated about a rotation shaft 112 of a rotation means (not shown). It is installed on the ground part 10 as much as possible, and the other pedestal 94 is supported on a rail 114 arranged on the ground part 10 with an arc-shaped trajectory centered on the rotation axis 112, The horizontal frame 92 can be horizontally swung.

The position of the vertical portion 50 is made variable by moving in the longitudinal direction on the horizontal frame portion 92.

Therefore, the position of the vertical portion 50 can be set at various positions in the circular excavation portion 110, and loading can be performed directly.
A device for transporting and collecting the excavated soil to the position is not required, and a time for collecting is not required, so that high-efficiency unloading can be performed.

The other configuration and operation are the same as those of the second embodiment, and the description is omitted.

FIG. 11 is a view showing a state of carrying out excavated soil using the vertical conveyor device according to the fourth embodiment of the present invention.

The vertical conveyor device 116 according to this embodiment is similar to the second embodiment, except that the
0, and the pair of gantry 94 is mounted on a pair of rails 96 arranged in parallel on the ground part 10 such that the horizontal gantry 92 straddles the excavation part 14. The supporting legs 94 are moved in parallel along the rails 96 by a driving device (not shown) so that the horizontal frame 92 can move horizontally in a direction intersecting the length direction.

Further, the belt conveyor 26 with a crosspiece is a first belt conveyor.
In the horizontal portion 48, the driving device 80 is made movable on a rail 84 disposed along the length direction of the horizontal frame portion 92, and is pulled and supported by the electric winch 28, as in the embodiment of FIG. It is in a state of being left.

Then, the state of the crossed belt conveyor 26 in the first embodiment, that is, the electric winch 28 at one end (the right end in the drawing) of the horizontal portion 48 via the driving device 80 is used. In addition to the towing support, the other end (the end on the left side in the figure) is also supported by a towing pulley 118 made movable on the rail 84, and this towing pulley 118 is electrically driven by the drive device 80. An electric winch 120 different from the winch 28 is used for traction support.

Therefore, in addition to the moving distance L of the driving device 80 by the electric winch 28, the length of the vertical portion 50 can be changed by a distance corresponding to the moving distance L1 of the pulling pulley 118 by the electric winch 120. It is possible to cope with a change in the excavation depth.

Further, by horizontally moving the gantry 90, the position of the vertical portion 50 is changed to make the loading position variable, and a device and time for transporting and collecting excavated soil to the loading position can be omitted. , And highly efficient transfer can be performed.

The other configuration and operation are the same as those of the above embodiments, and the description is omitted.

FIG. 13 is a diagram showing a vertical conveyor device according to a fifth embodiment of the present invention.

In this embodiment, in addition to the state of the first embodiment, a belt conveyor 26 with a crosspiece is provided with a horizontal section 48.
The telescopic part 140 is formed on the conveyor belt 36 on the feed side of the, and the length of the vertical part 50 is made variable by the telescopic part 140.

The expansion / contraction section 140 is configured to transfer a part of the conveyor belt 36 on the feed side of the horizontal section 48 to a plurality of (three in this embodiment) rollers 142 as a fixed-side winding means, Is wound around a plurality of (two in this example) rollers 144 as movable-side wrapping means capable of approaching and separating from the movable side. As shown by, the length of the vertical portion 50 can be made variable by extending or winding the conveyor belt 36 by approaching and separating. Therefore, the driving pulley 58 moves together with the driving device 80 at one end of the horizontal portion 48, and
In addition to making the length of zero variable, the length of the vertical part 50 is also made variable by the expansion and contraction part 140, so that deeper excavation can be handled.

In the present example, the excavated soil is transferred from the transfer section 62 to the discharge belt conveyor 30 disposed on the side of the horizontal section 48 via the transfer belt conveyor 104, so that the discharge belt conveyor 30 extends and contracts. I try not to get in the way.

The other structure and operation are the same as those of the first embodiment, and the description is omitted.

The present invention is not limited to the above-described embodiment, but can be modified to various embodiments within the scope of the present invention.

For example, the earth retaining method is not limited to the cut beam / raveling method, but may be applied to a method using an earth anchor method, a stile beam, or a ring beam method.

Further, in the above-described embodiment, the case where the vertical conveyor of the present invention is used for excavation work in a shaft or the like has been described. However, the present invention is also applicable to the case where grains, ready-mixed concrete, pulp, etc. are transported from a low place to a high place. You can do it.

[0136]

[Brief description of the drawings]

FIG. 1 is a cross-sectional view at an early stage of excavation showing a state in which a vertical conveyor device according to a first embodiment of the present invention is used to carry out excavated soil when excavating a shaft.

FIG. 2 is a cross-sectional view showing a state where excavation is advanced from the state of FIG.

FIG. 3 is an enlarged perspective view showing a part of a conveyor belt of the belt conveyor with a crosspiece shown in FIGS. 1 and 2;

FIG. 4 is a longitudinal sectional view showing a state of rollers on a feed side and a return side in a horizontal portion of the belt conveyor with rails.

FIG. 5A is a partial perspective view illustrating a conveyor belt supporting state in a modified example of a return roller, and FIG.
It is a perspective view showing the state where a roller was retracted from the state of (1).

FIG. 6 is a principle diagram of a belt conveyor with a crosspiece according to the present embodiment.

FIG. 7 is a cross-sectional view at an early stage of excavation showing a state in which the vertical conveyor device according to the second embodiment of the present invention is used to carry out excavated soil when excavating a shaft.

FIG. 8 is a cross-sectional view showing a state where excavation is being performed while changing the position of the vertical portion from the state of FIG. 7;

FIG. 9 is a cross-sectional view showing a state where excavation is performed in two or more stages from the state of FIG. 7;

FIG. 10 is a plan view of the vertical conveyor device according to the present embodiment.

FIG. 11 is a plan view of a vertical conveyor device according to a third embodiment of the present invention.

FIG. 12 is a cross-sectional view showing a state in which excavated soil is carried out when excavating a shaft using the vertical conveyor device according to the fourth embodiment of the present invention.

FIG. 13 is a principle diagram of a vertical conveyor device according to a fifth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Above-ground part 14 Excavation part 20,88,116 Vertical conveyor device 22,90 Stand 24,94 Standing leg 26 Conveyor belt conveyor 28,120 Electric winch 30 Unloading belt conveyor 32 Screw feeder 34 Excavated soil pit 36 Conveyor belt 40 Vertical beam 42 Horizontal beam 48 Horizontal section 50 Vertical section 60a, 60b Roller 62 Delivery section 64 Rolling roller 66 Delivery bending section 68 Receiving chute 92 Horizontal frame section 140 Telescopic section 142 Fixed-side roller 144 Roller on the movable side

Claims (11)

(57) [Claims] 1. A belt conveyor with a crosspiece having a horizontal portion disposed in a horizontal direction at a carry-out height position, and a vertical portion bent from the horizontal portion and disposed in a vertical direction to a loading height position. An unloading belt conveyor that transports the conveyed object transported by the crossed belt conveyor to an unloading position; a horizontal portion of the crossed belt conveyor and a gantry for mounting and supporting the unloading belt conveyor; A traction device that movably pulls and supports the end of the horizontal portion of the conveyor and that varies the length of the vertical portion; and look containing a supply loading device, the crosspiece with belt conveyor, from said vertical portion in the vicinity of the bent portion to the horizontal portion, vertical conveyor having a delivery unit for transferring the transported object in the unloading belt conveyor In location
There, the conveyor belt of the crosspiece with a belt conveyor, belt
There is a margin on both sides of the main body, and on the feed side of the horizontal part, the margin of the margin of the belt body is different.
The edge of the surface of the belt body is
An extra width portion is supported, and on the return side of the horizontal portion, the extra width portion corresponds to the extra edge width of the belt body.
The back edge of the belt body is
The extra width portion is supported, and the rollers on the return side are supported at the support positions of the conveyor belt.
A vertical conveyor device capable of being rotated horizontally from a retracted position to a retracted position . Wherein Oite to claim 1, wherein the frame is a horizontal rack portion, and the horizontal rack portion portal shape having a pair of Kaashi formed at both ends of at least said transferred object A vertical conveyor device, which is installed so as to straddle a loading work area. 3. The vertical conveyor according to claim 2 , wherein the gantry is horizontally movable in a direction intersecting a length direction of the gantry on a loading work area of the transported object. apparatus. 4. In any one of claims 1 to 3, wherein the horizontal section, vary the position of the vertical portion, on the horizontal rack portion, is movable along the length of the horizontal rack portion A vertical conveyor device characterized by: 5. In any one of claims 1 to 4, wherein the horizontal portion has a bent portion between the vertical portion to the intermediate portion,
A vertical conveyor device wherein both ends are movably supported by the traction device. 6. The claim 1-5, wherein the crosspiece with belt conveyor, the conveyor belt of the horizontal portion, and the winding unit part of the fixed side of the conveyor belt, the winding means of the fixed-side A vertical conveyer, wherein a telescopic part wound around a movable-side wrapping means capable of approaching and separating from the movable part is formed, and the length of the vertical part is made variable by the telescopic part. apparatus. 7. A horizontal portion mounted and supported on a gantry installed on a ground portion in a state where the end portion is movably supported by the towing means, and is bent from the horizontal portion and hangs down to an excavation portion. The excavated soil from the excavation section is unloaded from the loading device arranged at the lower end of the vertical section to the above-mentioned ground section by at least the vertical section, using a belt conveyor with a cross section having a vertical section disposed at A method for carrying out excavated soil, wherein the excavated soil is received by the unloading belt conveyor disposed on the gantry in the above-ground portion and is unloaded to the unloading position, wherein the conveyor belt on the sending side of the belt conveyor with rails is It is located on the side adjacent to the unloading belt conveyor and driven in the feeding direction, and the conveyor belt on the sending side is transferred to the unloading belt conveyor above the vertical portion side end of the unloading belt conveyor. A step of performing excavation of a predetermined depth and carrying out the excavated soil while delivering the excavated soil to the carry-out belt conveyor at a delivery section of excavated soil formed by bending to by moving the end of the horizontal portion by means the steps of lowering the lower end of the vertical portion, the repeated steps, see contains a step of unloading the excavated soil performs drilling sequential predetermined depth moves the end portion of the horizontal portion by the pulling means, before
In the step of lowering the lower end of the vertical portion, the horizontal portion
On the feed side, the surface ears of the belt body of the conveyor belt
Leave the roller in place to support the extra width
On the return side of the back body of the belt body
The roller at the moving position to be moved is moved to the support position of the conveyor belt.
From the horizontal part to the retracted position to move the end of the horizontal part.
A method for transporting excavated soil, the method comprising: 8. The gantry according to claim 7 , wherein the gantry has a portal shape installed over the digging portion, and is horizontally movable on the digging portion in a direction intersecting with a length direction of the gantry. A method for transporting excavated soil, wherein the gantry is horizontally moved to change the position of the vertical portion in the excavation portion, and excavation portions around the vertical portion are excavated at each position. 9. The method of claim 7 or 8, wherein said horizontal portion, vary the position of the vertical portion, wherein on the frame along the length of the frame is movable, the horizontal portion on the gantry And changing the position of the vertical portion by excavating the excavated portion around the vertical portion at each position. 10. In any one of claims 7-9, wherein the horizontal portion has a bent portion between the vertical portion to the intermediate portion,
Both ends are respectively movably supported by the traction device, and one end or both ends of the horizontal portion is moved by the traction means in accordance with the excavation depth of the excavation portion, and the lower end of the vertical portion is moved. The excavated soil carrying method characterized by lowering the rock. 11. The conveyor belt according to any one of claims 7 to 10 , wherein a part of the conveyor belt is entangled and formed on a conveyor belt at a horizontal portion of the belt conveyor with rails, and the conveyed conveyor belt is pulled out. Forming a telescopic part that makes the length of the vertical part variable, and after excavating the excavating part of the predetermined depth, pulling out the conveyor belt of the telescopic part, lowering the lower end of the vertical part, A method for carrying out excavated soil, wherein the excavated portion is excavated to a predetermined depth while sequentially moving the excavated portion horizontally.