JP7545787B2 - Civil engineering work equipment and civil engineering work vehicle equipped with the same - Google Patents

Description

The present invention relates to a civil engineering work device for carrying out civil engineering work such as tunnel construction, mine tunnel excavation, or reinforced earth work, and in particular to a civil engineering work device equipped with a rotating magazine used for driving rock bolts or drilling long holes using a drill rod, and a civil engineering work vehicle equipped with the same.

Rock bolts are driven into the wall surfaces of the excavated tunnel using a civil engineering work vehicle equipped with civil engineering work equipment such as a rock bolt driving device, thereby stabilizing the wall surfaces inside the tunnel (see, for example, Patent Document 1).
In addition, forward exploration of the tunnel face, long-hole blasting to realize rapid construction, and drilling of long holes such as mineral excavation are carried out by civil engineering equipment such as a drilling device that performs long-hole drilling work using a drill rod (see, for example, Patent Document 2 and Patent Document 3).

US2014/0112724-A1 JP 2014-15819 A JP 2015-67957 A

When driving rock bolts using a rock bolt driving machine equipped with a magazine that stores multiple rock bolts as a civil engineering work vehicle, there is a limit to the number of rock bolts that can be stored in the magazine due to constraints such as the size and structure of the rock bolt driving machine.
It is impossible to store all the rock bolts required for one construction job in one magazine, and the worker must manually replenish the rock bolts during the work.

In addition, when drilling long holes, if the required number of drill rods are stored in the magazine, the drilling work can be performed efficiently. However, the number of drill rods that can be stored in the magazine is limited due to the size, weight, structural reasons, etc. of the vehicle on which the civil engineering work equipment is mounted, so there are cases where the drill rods are insufficient.
If there is a shortage of drill rods, it will become necessary to use larger machinery to increase the number of drill rods that can be stored, or workers will need to manually replenish rock bolts during work.

The present invention was made with a focus on these problems, and aims to provide a civil engineering work device that can efficiently install rock bolts or drill long holes using a drill rod, and a civil engineering work vehicle equipped with the same.

In order to solve the above problems, one aspect of the present invention is a civil engineering work device equipped with a rotating magazine used for driving rock bolts or drilling long holes using a drill rod, and is characterized in that it is equipped with a magazine clamp device having a magazine attachment/detachment mechanism that allows the magazine that stores the rock bolts or the drill rod to be replaced with another magazine.

According to one aspect of the present invention, the civil engineering work device is equipped with a magazine clamp device, so that it can be equipped with a plurality of rotating magazines for storing rock bolts or drill rods, eliminating the need for workers to manually replenish rock bolts during work.
According to the civil engineering work device of the present invention, the magazine clamp device has a magazine attachment/detachment mechanism, so that the magazine corresponding to the work can be replaced with another magazine depending on the work of driving rock bolts or drilling long holes using a drill rod, and therefore the work of driving rock bolts or drilling long holes using a drill rod can be efficiently performed.

In addition, according to one aspect of the civil engineering work apparatus of the present invention, by equipping it with a magazine clamp device having a magazine attachment/detachment mechanism, it is possible to sequentially replenish or retrieve the required number of drill rods or rock bolts depending on the civil engineering work.
Therefore, civil engineering work such as drilling or casting can be performed using vehicles of the same size as existing machines. This eliminates the need for large machines, and is excellent for efficiently and continuously performing civil engineering work such as casting rock bolts or drilling long holes using drill rods.

Here, in a civil engineering work device according to one embodiment of the present invention, the magazine has a rotating shaft protruding from both ends in the axial direction, and the magazine clamp devices are arranged in a pair facing each end of the magazine, and the magazine attachment/detachment mechanism of each of the pair of magazine clamp devices can be configured to coaxially rotatably grasp and release the rotating shafts at both ends of the magazine.

In such a configuration, it is preferable that the magazine attachment/detachment mechanism of each of the pair of magazine clamp devices has a pair of clamp arms that open and close to detachably and rotatably grip the protruding rotating shaft portions at both ends. With such a configuration, opening and closing the pair of clamp arms is preferable for freely attaching and detaching the rotating shaft portions at both ends of the magazine to be replaced.

Furthermore, in the civil engineering work device according to one aspect of the present invention, it is preferable that the magazine attachment/detachment mechanism further has a clamp guide that is movably provided between the pair of clamp arms, and that the clamp guide is configured to align the axis of the rotating shaft to a desired position by three-point support with an advancing/retracting action linked to the opening and closing action of the pair of clamp arms.

With this configuration, the clamp guide provided between the pair of clamp arms allows the shaft center to be aligned to the desired position through three-point support with the pair of clamp arms, so the shafts at both ends can be stably clamped on a fixed axis. Furthermore, even if the diameters of the shafts at both ends are different, the shaft centers can be held coaxially. This makes it an excellent magazine clamping device that can handle multiple magazines of different types.

In order to solve the above problem, a civil engineering work vehicle according to one aspect of the present invention is characterized in that it includes a civil engineering work device according to any one of the aspects of the present invention.
According to a civil engineering work vehicle of one aspect of the present invention, since it is equipped with a civil engineering work device of any one of the aspects of the present invention, long hole drilling work or rock bolt driving work can be efficiently performed without the worker approaching the vicinity of the drilling/driving site where there is a risk of falling rocks, etc.

In addition, in a civil engineering work vehicle according to one aspect of the present invention, if multiple magazines that store rock bolts or drill rods are prepared near the work platform as other magazines for replacement depending on the civil engineering work device, civil engineering work can be efficiently and continuously carried out by, for example, using a boom device equipped on the civil engineering work vehicle and a magazine clamp device having a magazine attachment/detachment mechanism to replace magazines sequentially at appropriate times.

As described above, the present invention allows for efficient installation of rock bolts or drilling of long holes using a drill rod.

1 is a diagram illustrating an embodiment of a civil engineering work vehicle equipped with a civil engineering work device according to the present invention. FIG. 1 is a diagram illustrating a rock bolt driving device, which is a first embodiment of a civil engineering work device having a mechanism for attaching and detaching a magazine that stores rock bolts or drill rods, according to the present invention, in which (a) is a plan view, (b) is a front view, (c) is a left side view, and (d) is a right side view. 3A and 3B are explanatory diagrams of a magazine mounting/removal mechanism provided on the civil engineering work device of the first embodiment shown in FIG. 2, in which FIG. 3A shows a clamped state with a pair of openable/closable clamp arms and clamp guides, and FIG. 3B shows an open state. FIG. 3 is a diagram for explaining the magazine attachment/detachment mechanism and its operation by the civil engineering work device of the first embodiment shown in FIG. 2, in which (a) shows the attachment/detachment position with a pair of clamp arms open, (b) shows the gripping position by the rod exchange device when transferring a rock bolt or drill rod, (c) shows the transfer position at the transfer position by the rod exchange device as viewed from the left side view, (d) shows an image of the gear meshing portion between the magazine clamp device and the magazine as viewed from the left side view, and (e) shows an image of the open state with a pair of clamp arms and the magazine and its gear portion as viewed from the left side view. FIG. 2 shows a second embodiment of a civil engineering work device. The example in the figure shows a civil engineering work device equipped with a drill for drilling rock bolt holes and a drill for driving rock bolts on one boom, in which (a) is a front view, (b) is a bottom view, (c) is a left side view of (a), and (d) is a right side view. 6A and 6B are diagrams explaining the magazine clamp device and its operation in the civil engineering work equipment of the second embodiment shown in Figure 5. As viewed from the right side in Figure 5, Figure 6(a) shows an image of the rock bolt construction machine body in a retracted position, (b) shows a detached state in which a pair of clamp arms of the magazine attachment/detachment mechanism are opened, and (c) shows an image of the magazine clamp device and the gear meshing portions between the magazine in an attached state in which the magazine is clamped by a pair of clamp arms.

Hereinafter, as one embodiment of the present invention, an embodiment of a civil engineering work vehicle equipped with a civil engineering work device according to the present invention will be described with appropriate reference to the drawings. Note that the drawings are schematic. Therefore, it should be noted that the relationship and ratio between thickness and planar dimensions are different from the actual ones, and the drawings include parts where the relationship and ratio of dimensions are different from each other.
Furthermore, the embodiments described below are merely examples of devices and methods for embodying the technical ideas of the present invention, and the technical ideas of the present invention do not limit the materials, shapes, structures, arrangements, etc. of the components to the embodiments described below.

[Rock bolt installation machine]
The rock bolt driving machine of this embodiment is a civil engineering work vehicle used for driving rock bolts in tunnel construction, etc. As shown in Fig. 1, the rock bolt driving machine 1 of this embodiment is equipped with a work platform 2 having wheels 7, 8 for running on the front and rear and outriggers 6.
A work cabin 3 is provided at the upper front portion of the work platform 2 , and a travel operation unit 4 and a drive unit 5 are provided at the rear side of the work platform 2 .
A boom device 10 capable of raising, lowering, rotating and swinging is provided at the front of the work platform 2. A rock bolt driving device 100 of the first embodiment is mounted on the tip of the boom device 10 via a mounting device 9 as a civil engineering work device for drilling long holes or driving rock bolts.

[Civil engineering work device of the first embodiment]
2, the rock bolt driving device 100 of the first embodiment has a guide shell 116 and a drifter 117 mounted on the guide shell 116. The guide shell 116 is supported by an attachment portion of the mounting device 9.
The drifter 117 is capable of sliding in the front-rear direction (left-right direction in FIGS. 2(a) and 2(b)) along the guide shell 116 by a known feed mechanism. Furthermore, in the rock bolt driving device 100 of the first embodiment, a magazine clamp device 30 and a rock bolt exchange device (bolt changer) 130 are provided on the side of the guide shell 116, and a removable magazine 40 is supported on the magazine clamp device 30 so as to be freely rotatable.

2, in the rock bolt driving device 100 of the first embodiment, a shank rod 118 is inserted into a drifter 117. A rock bolt B of a predetermined length is loaded into the tip of the shank rod 118 via a coupling 120.
In addition, a foot pad 119 and an opening/closing type centralizer 121 are provided at the tip of the guide shell 116, and the opening/closing type centralizer 121 supports the tip of the rock bolt B on the drilling axis.

When driving the rock bolt B, the boom device 10 is operated to position the guide shell 116 on the axis of the already drilled rock bolt insertion hole, and a striking force is transmitted from the drifter 117 to the rock bolt B via the shank rod 118, while the feed mechanism feeds the drifter 117. This allows the rock bolt B to be driven into the rock bolt insertion hole already drilled in the bedrock.

Here, as shown in FIG. 2, the rock bolt driving device 100 of the first embodiment is equipped with the above-mentioned magazine 40 and rock bolt exchange device 130, as well as the magazine clamp device 30, on the side of the guide shell 116.
The magazine 40 stores a plurality of rock bolts B in a state in which both ends of each rock bolt B are held. As a result, the rock bolt driving device 100 of the first embodiment is capable of replenishing rock bolts and driving a plurality of rock bolts B in sequence.

As shown in FIG. 4(b), the replaceable magazine 40 has a transfer section 41 that opens at a position on the upper side of the magazine 40 corresponding to the gripping position of a clamp 136 for gripping and releasing a lock bolt B. The magazine 40 stores a plurality of lock bolts B held by front and rear set plates 44, and a magazine shaft 42 is rotatably supported by a pair of magazine clamp devices 30.

The magazine 40 has a magazine shaft 42 at its center that is parallel to the guide shell 116, and both ends of the magazine shaft 42 protrude from the front and rear of the magazine plate 45 in the axial direction. Both ends of the magazine shaft 42 protruding from the front and rear are rotatably supported by a magazine attachment/detachment mechanism 32 provided at the tip of the support arm 31, thereby allowing it to be replaced, and both ends of the magazine shaft 42 are rotatably supported by the pair of support arms 31.

The lock bolt exchanging device 130 has a pair of brackets 131 spaced apart from each other at the front and rear of the guide shell 116. A carrier motor (not shown) is built into each of the pair of brackets 131, and each of the pair of brackets 131 is equipped with a rotatable carrier arm 138.
A pair of front and rear carrier arms 138 are each pivotally supported by a pin 137 (see FIG. 4B) that is coaxially connected to the drive shaft of the carrier motor. This allows the pair of carrier arms 138 to rotate about the pin 137 by the drive of the carrier motor.

In this embodiment, the carrier arm 138 is driven by a carrier motor to move the center position of the lock bolt B to a position for transferring the lock bolt B to a replaceable magazine 40 as shown in Figure 4(b), and to a position on the drilling axis where the lock bolt B is driven as shown in Figures 4(c) and (d).
4(b), a clamp 136 for gripping and releasing the lock bolt B is provided at the tip of the carrier arm 138. The clamp 136 is opened and closed by the extension and contraction of a clamp cylinder 139, making it possible to grip and release the lock bolts B that are loaded sequentially.

Furthermore, as shown in FIG. 2, a pair of magazine clamp devices 30 are disposed on the sides of the guide shell 116, spaced apart from each other in front of and behind the pair of lock bolt exchange devices 130. In other words, in this embodiment, a pair of magazine clamp devices 30 are provided on the outer side of each bracket 131 (the side opposite to the mutually opposing sides).

Of the pair of magazine clamp devices 30, the magazine clamp device 30 located on the base end side of the magazine shaft 42 is provided with a magazine drive motor 48 that rotates the magazine shaft 42 via a reduction gear 46, as shown in the figure. A pair of set plates 44 that can rotate together with the magazine shaft 42 are attached to a midpoint of the magazine shaft 42 at a distance in the axial direction and hold a lock bolt B.
Each of the pair of magazine clamp devices 30 has a support arm 31 provided so as to protrude laterally from the guide shell 116, and a magazine mounting/removal mechanism 32 provided at the tip of the support arm 31. The pair of magazine clamp devices 30 is capable of detachably supporting the magazine 40 by the magazine mounting/removal mechanism 32.

As a result, as shown in FIG. 1, when using the rock bolt driving machine 1 of this embodiment, if multiple magazines 40 containing rock bolts are prepared on a stand 400 near the work platform 2 as replacement magazines 40 depending on the civil engineering work device, civil engineering work can be efficiently and continuously carried out by using the boom device 10 equipped on the work platform 2 and the magazine clamp device 30 having the magazine attachment/detachment mechanism 32 to sequentially replace the magazines 40 at appropriate timing.

In more detail, as shown in an enlarged view in FIG. 3, each magazine attachment/detachment mechanism 32 comprises a base 36 attached to the tip of the support arm 31, a pair of clamp arms 33 rotatably supported on the upper left and right sides of the base 36 via support shafts 34, a cylinder 35 fixed to the underside of the base 36, and a clamp guide 37 disposed between the pair of clamp arms 33 and supported so as to be movable up and down by the extension and contraction of the piston 35a of the cylinder 35.

The pair of clamp arms 33 are disposed symmetrically, and each of the pair of clamp arms 33 has a cam groove 33m formed in the lower part of the support shaft 34. The center part of the lower end of the clamp guide 37 is connected to the piston 35a of the cylinder 35, and both left and right ends of the lower part are engaged by guide pins 37g that are movable along the cam groove 33m. As a result, the clamp guide 37 advances and retreats in response to the extension and contraction of the cylinder 35, and operates in conjunction with the pair of clamp arms 33. A roller 33r is provided at the tip of the clamp arm 33, and a roller 37r is provided at the tip of the clamp guide 37.
In particular, the left and right cam grooves 33m are set in an arc shape so that, as the clamp guide 37 moves upward, the upper part of the clamp guide 37 and the inner surfaces of the left and right clamp arms 33 simultaneously reach the outer peripheral surface of the magazine shaft 42, which has a constant axis C.

When the magazine shaft 42 is held by the magazine attachment/detachment mechanism 32, the piston 35a of the cylinder 35 is extended to move the clamp guide 37 upward, as shown in FIG. 3(a).
As a result, the lower portions of the pair of clamp arms 33 are spread outward, and the rollers 33r of each clamp arm 33 are narrowed toward the magazine shaft 42 and moved to the gripping position, and an automatic centering function is achieved in which the rollers 33r and 37r simultaneously reach the outer peripheral surface of the magazine shaft 42, which has a constant axis C, due to three-point support in cooperation with the roller 37r of the clamp guide 37.

Therefore, the magazine shafts 42 at both ends are stably held on a fixed axis so as to be rotatable. Thus, the magazine attachment/detachment mechanism 32 of the present embodiment is capable of holding the magazine shafts 42 at both ends of the magazine 40 on a fixed axis, and is capable of detachably and rotatably holding the magazine shafts 42.
As a result, the magazine mounting/removal mechanism 32 of this embodiment can stably clamp the magazine shafts 42 at both ends on a fixed axis. In addition, even if the magazine shafts 42 at both ends have different diameters, their respective axial centers can be held coaxially. This makes the magazine mounting/removal mechanism 32 an excellent configuration for use as a magazine clamp device 30 that can accommodate a plurality of different types of magazines 40.

When the magazine attachment/detachment mechanism 32 is used to release the hold, as shown in FIG. 3(b), the piston 35a of the cylinder 35 is shortened, and the clamp guide 37 is moved downward by the reverse operation of the above, and each clamp arm 33 is spread apart toward the side opposite the magazine shaft 42 to move to the open position, thereby releasing the hold on the magazine shaft 42.

[Rock bolt installation work]
Next, the rock bolt driving operation using the rock bolt driving machine 1 will be described.
When performing rock bolt driving operations using the rock bolt driving machine 1, the guide shell 116 of the rock bolt driving device 100 of the first embodiment is positioned at the desired driving position by driving the boom device 10 and the mounting device 9, and the drifter 117 is driven to drive the bolt driving.
In the rock bolt driving process, the rock bolt B is moved from the magazine 40 to the guide shell 116 side by the rock bolt exchange device 130, and the rock bolt B is driven into the rock bolt insertion hole by the feed device of the guide shell 116 in alignment with the shank rod 118 at the tip of the drifter 117.

When driving a rock bolt B into the next rock bolt insertion hole, the next rock bolt B is loaded using the rock bolt replacement device 130 described above.
When the next lock bolt B is loaded, first, the drifter 117 is moved rearward on the guide shell 116 .
Next, the magazine drive motor 48 is driven to rotate the magazine shaft 42 to move the set plate 44, positioning the lock bolt B at the transfer position of the magazine 40, and moving the carrier arm 138 of the lock bolt exchange device 130 to the transfer position of the magazine 40.

The clamp cylinder 139 of the lock bolt exchange device 130 is extended to grip the lock bolt B with the clamp 136, and the carrier motor is driven to remove the gripped lock bolt B from the magazine 40 and rotate the carrier arm 138 to move the lock bolt B onto the drilling axis of the drifter 117. Figures 4(b) and (d) show the states before and after the lock bolt B in the magazine 40 is moved to the guide shell 116 side by the delivery operation of the lock bolt exchange device 130.
Once the rock bolt B is positioned on the drilling axis, the drifter 117 is advanced so that the rear end of the rock bolt B is supported by the coupling 120, and the front end of the rock bolt B is supported by the centralizer 121. Thereafter, the clamp 136 is opened, and the carrier arm 138 is rotated to return to the retracted position (the position on the side of FIG. 4(b)).

[Magazine replacement work]
When all the rock bolts B in the magazine 40 have been driven, it is replaced with another magazine 40 containing rock bolts B, which is placed on the stand 400 shown in Fig. 1. When replacing with another magazine 40, the mounting device 9 and the boom device 10 on the work platform 2 are driven to move the rock bolt driving device 100 to the vicinity of the stand 400 of the magazine 40 to be replaced, and the magazine 40 is positioned in a position where it can be replaced (see Fig. 1).
The magazine 40 is replaced by opening the magazine attachment/detachment mechanisms 32 of the pair of magazine clamp devices 30 and detaching the emptied magazine 40 from the pair of magazine clamp devices 30. Figures 4(a) and (e) show a state in which the magazine attachment/detachment mechanisms 32 are opened and the magazine 40 is separated from the pair of magazine clamp devices 30 of the rock bolt driving device 100 of the first embodiment.

Next, the holding positions of each magazine attachment/detachment mechanism 32 of the pair of magazine clamp devices 30 are aligned with the magazine shaft 42 at both ends of the magazine 40 to be used next, and each magazine attachment/detachment mechanism 32 is driven in the gripping direction to support the magazine shaft 42 at both ends of the magazine 40 so that it can rotate freely, thereby completing the magazine replacement work.
At this time, the large diameter gear 43 on the magazine 40 side and the small diameter gear 47 on the magazine clamp device 30 side mesh with each other to form the reduction gear 46, thereby connecting the magazine 40 so that it can rotate when driven by the magazine drive motor 48.
Figure 4 (d) shows a state in which a pair of magazine clamp devices 30 and a magazine 40 of the rock bolt driving device 100 of the first embodiment are connected by a magazine attachment/detachment mechanism 32, and the large diameter gear 43 and the small diameter gear 47 are engaged with each other.

[Action and Effect]
In this way, the first embodiment of the rock bolt driving device 100 and the rock bolt driving machine 1 equipped with the same have a magazine attachment/detachment mechanism 32 that allows the rotating magazine 40 that stores the rock bolts B to be replaced with another magazine 40, so that if a magazine 40 containing a number of rock bolts B sufficient to meet the required number for each work pattern is prepared, it is possible to respond to a shortage of storage capacity by replacing the magazine 40.
In addition, since the magazine 40 corresponding to the civil engineering work can be replaced with another magazine 40 according to the driving work of the rock bolts B, the worker can continuously and efficiently drive the rock bolts B without interrupting the driving work of the rock bolts B. In addition, since the rock bolts B can be loaded into the other magazine 40 during the driving work, the efficiency of the loading work is improved.

In addition, according to the rock bolt driving device 100 of the first embodiment and the rock bolt driving machine 1 equipped with the same, the required number of rock bolts B can be sequentially replenished or retrieved according to the civil engineering work, so civil engineering work such as drilling or driving can be performed using a vehicle of the same size as an existing machine. Therefore, a large machine is not required, and civil engineering work such as driving the rock bolts B can be performed efficiently and continuously.
In this way, the rock bolt driving device 100 of the first embodiment and the rock bolt driving machine 1 equipped with the same can efficiently perform rock bolt driving work.
The civil engineering work device and the civil engineering work vehicle equipped therewith according to the present invention are not limited to the above-described embodiment, and it goes without saying that various modifications are possible without departing from the spirit and scope of the present invention.

For example, in the civil engineering work equipment of the first embodiment described above, the basic configuration is an example in which one guide shell 116 is equipped with one drifter 117, and a magazine clamp device 30 and a lock bolt exchange device 130 are equipped on the side of the guide shell 116, but the civil engineering work equipment and the civil engineering work vehicle equipped therewith according to the present invention are not limited to this.
For example, the civil engineering work device of the second embodiment shown below is an example of a drilling and concrete driving device in which, as a basic configuration, a "rock bolt driving device", a "drilling device", and an "injection device" are mounted on the tip of one boom, and the above-mentioned magazine clamp device 30 is also provided. Note that in the civil engineering work device of the second embodiment, components that are the same as or correspond to those of the civil engineering work device of the above-mentioned first embodiment are given the same reference numerals, and descriptions thereof will be omitted as appropriate.

[Civil engineering work device of second embodiment]
5 shows a rock bolt construction device 200, which is a civil engineering work device of the second embodiment. The rock bolt construction device 200 of the second embodiment shown in the figure is installed by mounting a base 201 to the mounting portion of the mounting device 9 at the tip of the boom device 10 shown in FIG.
In detail, as shown in Figure 5, the second embodiment of the lock bolt construction device 200 comprises a base 201, a lock bolt construction machine main body 210 mounted on the base 201 so as to be rotatable around the support axis JC, a hydraulic rotation mechanism 202 interposed between the lock bolt construction machine main body 210 and the base 201 and which rotates the lock bolt construction machine main body 210 to a plurality of positions around the support axis JC by multi-stage extension and contraction of its hydraulic cylinder, and a pair of magazine clamp devices 30 mounted on the base 201 and arranged axially spaced apart, as in the first embodiment described above.

The pair of magazine clamp devices 30 are equipped with a rotating magazine 40 that can be attached and detached by a magazine attachment/detachment mechanism 32. In the second embodiment, the pair of magazine clamp devices 30 themselves and their respective magazine attachment/detachment mechanisms 32, as well as the support structure for the rotating magazine 40 by the pair of magazine clamp devices 30, have the same configuration as the magazine attachment/detachment mechanism 32 in the first embodiment shown in FIG. 1, so a description thereof will be omitted.

The rock bolt construction machine body 210 is provided with a rock bolt installation device 240, an injection machine 230, and a drilling device 220, in that order from the magazine 40 side, in the rotation direction around the support axis JC. The rock bolt construction machine body 210 (i.e., the drilling device 220, the injection machine 230, and the rock bolt installation device 240) is rotated integrally with respect to the base 201 by the drive of the hydraulic rotation mechanism 202, and is configured so that the reference axes of the drilling device 220, the injection machine 230, and the rock bolt installation device 240 can be switched between three positions.

The configuration of the rock bolt applicator body 210 other than the magazine clamp device 30 and the rock bolt installation work using this are the same as those in Patent Document 1, so a description thereof will be omitted. In addition, the rock bolt installation work using the magazine clamp device 30 is the same as that in the first embodiment, so a description thereof will be omitted.
In the above-mentioned embodiments, examples of civil engineering work devices for driving rock bolts are shown, but the embodiment of the civil engineering work device according to the present invention is not limited to this. In other words, the civil engineering work device can be applied to various aspects as long as it is a civil engineering work device that can be equipped with a rotary magazine used for driving rock bolts or drilling long holes using a drill rod.

Specifically, the civil engineering work device according to the present invention can be used for a fan cut drill for constructing drainage holes from narrow holes, as shown in the above-mentioned Patent Document 2. In a fan cut drill, when the drilling length is long, the number of drill rods required may exceed the capacity of one magazine. However, increasing the capacity of the magazine increases the size of the device and the weight, which is undesirable.
In contrast, by equipping a fan cut drill with the magazine clamp device of the present invention, it is possible to address the lack of storage capacity by replacing the magazine, and further, the efficiency of the loading operation is improved because rods can be loaded into the magazine during drilling operations.

The civil engineering work device according to the present invention can also be used for a forward exploration device that periodically investigates the properties of the ground during tunnel construction, as shown in the above-mentioned Patent Document 3. In the forward exploration device, a drill jumbo is used as the machine body to drill long holes, for example, about 30 m long, while collecting various data. However, the drill rod is extended and retrieved by the operator by manually loading it into the rod setter, which is problematic in terms of work efficiency. However, in a configuration in which a rod magazine is always equipped on a normal drilling boom, the device becomes larger and heavier, and the operator's blind spots increase, which is undesirable as it adversely affects normal tunnel excavation work.

In contrast, by equipping the forward exploration device with the magazine clamp device of the present invention, the magazine can be attached and detached, so that the magazine is equipped only when necessary, improving the efficiency of forward exploration work without reducing the efficiency of normal tunnel excavation work.

1. Rock bolt installation machine (civil engineering vehicle)
2 Work platform 3 Work cabin 4 Travel operation unit 5 Drive unit 6 Outriggers 7, 8 Wheels 9 Mounting device 10 Boom device 30 Magazine clamp device 31 Support bracket 32 Magazine attachment/detachment mechanism 33 Clamp arm 33r Roller 34 Support shaft 35 Cylinder 36 Base 37 Clamp guide 37r Roller 40 Magazine 41 Delivery unit 42 Magazine shaft (rotating shaft)
43 Large diameter gear 44 Set plate 45 Magazine plate 46 Reduction gear 47 Small diameter gear 48 Magazine drive motor 100 Rock bolt driving device (civil engineering work device of the first embodiment)
116 Guide shell 117 Drifter 118 Shank rod 120 Coupling 121 Centralizer 130 Lock bolt replacement device (bolt changer)
200 Rock bolt construction device (civil engineering work device of the second embodiment)
201 Base 202 Hydraulic rotating mechanism 210 Rock bolt construction machine body 220 Drilling device 230 Injection machine 240 Rock bolt installation device 400 Stand B Rock bolt

Claims (6)

A civil engineering work device equipped with a rotary magazine used for driving rock bolts or drilling long holes using a drill rod,
The magazine clamp device has a magazine attachment/detachment mechanism that can replace the magazine that stores the rock bolt or the drill rod with another magazine ,
The magazine has a rotating shaft protruding from both ends in the axial direction,
This civil engineering work device is characterized in that the magazine clamp devices are arranged in a pair facing each other at both ends of the magazine, and the magazine attachment/detachment mechanism of each of the pair of magazine clamp devices is configured to be able to coaxially rotatably grasp and release the rotating shafts at both ends of the magazine . The civil engineering work apparatus according to claim 1, wherein the magazine attachment/detachment mechanism of each of the pair of magazine clamp devices has a pair of clamp arms that open and close so as to detachably and rotatably grasp the protruding portions of the rotating shaft at both ends. 3. The civil engineering work device according to claim 2, wherein the magazine attachment/detachment mechanism further includes a clamp guide arranged between the pair of clamp arms so as to be movable back and forth, and the clamp guide is configured to align the axis of the rotating shaft to a desired position by three-point support with an advancing and retreating action linked to the opening and closing action of the pair of clamp arms. The civil engineering work device is a rock bolt driving device that performs rock bolt driving work in civil engineering work such as tunnel construction, mine tunnel excavation, or reinforced earth work,
The civil engineering work device according to any one of claims 1 to 3, wherein the magazine is a rock bolt magazine in which rock bolts are stored. The civil engineering work device is a drilling device for drilling long holes in tunnel construction or mine excavation,
The civil engineering work device according to any one of claims 1 to 3, wherein the magazine is a drill rod magazine in which drill rods are stored. A civil engineering work vehicle comprising the civil engineering work device according to any one of claims 1 to 5 .

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