KR20200006267A - Grass cutter of hydraulic hose of an excavator - Google Patents

Abstract

The present invention provides a weed whacker for heavy equipment, comprising: a pair of bodies each having two shaft holders; a pair of rotating members rotatably coupled to the shaft holders between the bodies; a cover coupled to upper ends of the bodies to cover upper portions of the rotating members; a clamp installed on the cover to be coupled to heavy equipment; and a pair of hydraulic motors formed on one side of the clamp to rotate the rotating members by a power transmission means. The rotating members each have: a shaft; a plurality of discs fitted and coupled to the shaft and distanced from each other at predetermined intervals; a shaft bar through-hole formed in an edge side of each disc; and a hitting blade fitted on the shaft bar, and formed between the discs to cut scrub. The present invention can mow grass, by using an excavator or the like, in a steeply inclined place, a harsh environment, or a place in which scrub of a size that cannot be removed by a conventional weed whacker grows, uses vertically rotating blades (hitting blades) without using horizontally rotating blades and rotates the pair of rotating members in opposite directions so that, when the hitting blades of one of the rotating members hit grass or scrub to one side in cutting the scrub, that is, the grass or scrub is tilted to one side, the hitting blades of the other rotating member cut the grass or scrub while hitting the same, thereby achieving very high cutting efficiency, and allows the shaft bar to be fitted on a shaft bar fixture and coupled by a bolt so that the shaft bar is removed to the outside of the body when the bolt is unfastened, thereby enabling a user to easily replace damaged or worn hitting blades.

Description

Grass cutter of hydraulic equipment {Grass cutter of hydraulic hose of an excavator}

The present invention relates to a mower for heavy machinery, and more particularly, to a mower for heavy machinery that enables a mowing operation difficult with a general portable mower, such as a lumber, using an excavator and the like.

In general, heavy equipment, aka forklift is a device for digging or moving the ground in construction and civil works, a variety of operations, such as lifting and cutting work using the concrete floor and building shredding, tongs.

In this case, for various tasks, a device suitable for each task should be used. Such a device is called an attachment. As the attachment, a bucket for general excavation and earth and sand transport, a hard ground, a breaker for crushing rock, and the like, a crusher for dismantling and crushing a building are mainly used, and these attachments are used on the arm of heavy equipment. Clamps are required for mounting.

In addition, mowers (or mowers) are machines used to cut vegetation, such as grass and scrubs. Depending on the work object, they are used for rice, grass, and wood. Etc.).

On the other hand, in the case of terrain that is inclined more than general farmland such as hills and hills, we apply mowing work by attaching a mowing device in the form of an attached work tool to transportation equipment such as tiller or tractor, but in severe slopes, poor environment, and existing mowers Places that inhabit lumber of a size that cannot be handled cannot be solved by conventional mowing devices.

Therefore, a large-capacity lawnmower is required that can be mounted on heavy equipment such as an excavator that is durable and can drive a rough road. Such a conventional large-capacity lawnmower is operated by hydraulic pressure supplied from an excavator as shown in FIG. 1. The main body 100 and the main body (100) having a built-in valve 103 (104) for controlling the hydraulic supply and the motor 103, integrally formed with a safety plate 105 protruding rearwardly by a predetermined length and extending in the horizontal direction at the end portion thereof. 100 is hinged to the hinge portion 101 of the upper side to be rotatable at a predetermined angle, and the rod connecting portion 201 is formed on one side of the piston rod of the hydraulic cylinder 106 installed to be rotatable on the upper surface of the main body 100 ( Pivoting the 106a) to the rod connecting portion 201 allows the left and right angle adjustment of the main body 100 by the hydraulic cylinder 106, the upper coupled to the end of the excavator arm The connector 200 and the plurality of through-holes 301 formed to form an excavator connection 202 to radially formed in the center, the bottom surface in the center of the coupling protrusion 302 provided with a female thread to the hydraulic motor 103 It is disclosed in the Patent Publication No. 10-0633396 comprising a rotating plate 300 installed on the bottom surface of the main body 100 and a mowing means 400 detachably installed on the rotating plate 300 to rotate at a high speed. .

However, the rotary plate 300 of the lawn mower as described above, that is, the cutting blade is a horizontal rotation method, the trees or broken blades, spring stones, etc. cut by the rotary plate is a very high risk of safety accidents by centrifugal force.

[Preceding technical literature]

1. Patent Registration No. 10-0973116

2. Registered Patent Publication No. 10-0633396

An object of the present invention for solving the problems as described above, by using an excavator, such as a severe slope or poor environment, it is possible to mow grass, such as a place where a large variety of plants can not be handled by conventional mowers It eliminates the hazards of safety by using the vertical rotary blades instead of the horizontal rotary blades and by letting the wood chips cut by the mowing blades or the stones hit by the blades spill toward the ground. And heavy-duty lawn mowers with high efficiency of cutting and lumber cutting.

Looking at the solution according to an embodiment of the present invention for achieving the above object, a pair of main body each having two wheelbase, and a pair of rotatably coupled by the wheelbase between the main body A rotary ball, a cover coupled to the top of the main body to cover the upper portion of the rotary ball, a clamp installed on the cover to be coupled to the heavy equipment, a pair formed on one side of the clamp for rotating the rotary ball by the power transmission means It consists of a hydraulic motor, the rotary sphere is coupled to the shaft and the shaft and coupled to the plurality of discs formed at predetermined intervals and the shaft rod through-hole and formed in the edge side of each disc and the shaft rod coupled to the shaft through-hole and the It is formed between the disc and the disc is inserted into the shaft, characterized in that composed of a striking blade for striking the lumber The.

According to an embodiment of the present invention, the hydraulic motor is made in a pair and the hydraulic line is to be connected in series with the two hydraulic motors, one side of the hydraulic motor shaft clockwise, the other side of the hydraulic motor shaft rotates counterclockwise It is characterized in that it is configured to.

According to an embodiment of the present invention, the shaft bar is fitted to the cylindrical shaft rod fixture fixed to be coupled by a bolt, the shaft rod fixture is configured to maintain a locked state located between any one disc and the other disc It is characterized by.

According to an embodiment of the present invention, the striking blade is made of a cylindrical tube fitted to the shaft and the striking portion extending from the cylindrical tube, characterized in that the inner diameter of the cylindrical tube is formed larger than the outer diameter of the shaft.

According to an embodiment of the invention, the striking blade is characterized in that the end of the striking portion is sharply cut and at least one "V" shaped concave groove is formed.

According to an embodiment of the present invention, the height of both end portions of the cover is characterized in that it is formed higher than the axis height of the rotary sphere.

According to an embodiment of the present invention, a second rotary sphere is formed between the pair of rotary spheres, wherein the second rotary spheres are coupled to the shaft and the shaft, and are formed with a plurality of discs spaced apart from each other by the disc, Characterized in that it consists of a fixed hammer blade coupled in a fixed state between the disk.

As an effect of the present invention as described above it is possible to mow using a excavator or the like in a severe slope or poor environment, a place where a variety of large-sized grass that can not be processed by the existing mower.

In addition to the use of vertical rotary blades (hit blades) without the use of horizontal rotary blades, one of the rotary blower blades can be used to cut a piece of wood by rotating a pair of rotary tools in opposite directions. If you hit the lumber on one side, that is, let it be pulled to one side, it will receive it and cut it while hitting the other blade.

If only one rotary sphere is formed instead of a pair of rotary spheres as in the present invention, the cutting blade hits a grass or a scavenger only to one side, thereby making it difficult to properly cut.

In addition, the present invention is composed of a pair of rotary spheres and the rotation direction is different from the left side of the rotary sphere counterclockwise, the right rotary sphere is rotated in the clockwise direction cut stone pieces or the stone hit the blade is the bottom of the cover After hitting it, it moves along the inner side of the cover and eventually spills to the ground, allowing for very safe work.

In addition, the present invention is to be coupled to the shaft rod fastener to be coupled by the bolt to loosen the bolt to pull out the shaft all the way out of the body so that it is easy to replace the damaged or worn blow blades.

In addition, in the present invention, when connecting a pair of hydraulic motor by the hydraulic line is connected in series so that the hydraulic pressure is not dispersed, the rotational force is not halved.

In addition, the present invention is formed by the height of both ends of the cover is higher than the shaft height of the rotary ball to eliminate the disadvantage that the blade is not hit the grass or scum by pressing the grass or scum in advance when the cover pushes the grass or scum To be able.

In addition, the present invention is a very useful inventor that can minimize the damage of the impact blade by buffering the impact by allowing the impact blade to be rotated backwards by reaction when the impact blade is rotatable 360 degrees in the state of being fitted to the shaft. will be.

1 is a reference diagram of a conventional mower for heavy machinery.
Figure 2 is an exploded perspective view of a mower for heavy equipment according to an embodiment of the present invention.
3 is a perspective view of the combined state of FIG.
4 is a cross-sectional view of FIG.
5 is a cross-sectional view of the present invention.
Figure 6 is a reference cross-sectional view for showing the direction of rotation of the rotary sphere of the present invention and the discharge direction of the cut pieces of wood.
7 is a system diagram of the hydraulic line of the present invention.
8 is a cross-sectional view of a lawnmower for heavy equipment according to another embodiment of the present invention.
9 is a reference state of use of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms “a,” “an,” and “the” include plural forms as well, unless the phrases clearly indicate the opposite. As used herein, the term "comprising" embodies a particular characteristic, region, integer, step, operation, element, and / or component, and other specific characteristics, region, integer, step, operation, element, component, and / or group. It does not exclude the presence or addition of. Unless defined otherwise, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. Commonly defined terms used are additionally interpreted as having a meaning consistent with the related technical literature and the presently disclosed contents, and are not interpreted as ideal or official meanings unless defined.

Embodiments of the invention described with reference to the perspective view specifically illustrate an ideal embodiment of the invention. As a result, various modifications of the illustrations, for example, manufacturing methods and / or specifications, are expected. Thus, the embodiment is not limited to the specific form of the illustrated region, and includes, for example, modification of the form by manufacture. For example, areas shown or described as flat may have properties that are generally rough and / or rough. In addition, the regions shown in the drawings are originally only approximate, and their forms are not intended to show the exact form of the regions, and are not intended to narrow the scope of the present invention.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of a mower for heavy equipment according to the present invention will be described in detail.

Figure 2 is an exploded perspective view of a mower for heavy equipment according to an embodiment of the present invention, Figure 3 is a perspective view of the combined state of Figure 2, Figure 4 is a cross-sectional view of Figure 3, Figure 5 is a cross-sectional view of the present invention, Figure 6 is a reference cross-sectional view for showing the rotational direction of the rotary sphere of the present invention and the discharge direction of the cut wood pieces, Figure 7 is a schematic diagram of the hydraulic line of the present invention, Figure 8 is a mower for heavy machinery according to another embodiment of the present invention 9 is a cross-sectional view of the use state of the present invention.

First, in the drawings, the same components or parts are to be noted that the same reference numerals as possible. In addition, in describing the present invention, a detailed description of related known functions or configurations will be omitted in order not to obscure the subject matter of the present invention.

Heavy-duty mower 100 according to an embodiment of the present invention is rotatable by a pair of main body 110, each having two wheelbases 111, and the wheelbase 111 between the main body 110. A pair of rotary spheres 170 coupled to each other, a cover 120 coupled to the top of the main body 110 to cover the upper portion of the rotary sphere 170, and installed on the cover 120 to be coupled to heavy equipment Clamp 130, and formed on one side of the clamp 130 is made of a pair of hydraulic motor 150 for rotating the rotary sphere 170 by the power transmission means 160, the rotary sphere 170 Is a shaft 171, a plurality of disks 172 are inserted and coupled to the shaft 171 and spaced apart by a predetermined interval, the shaft rod through-hole (172a) formed on the edge side of each disk 172, and the A shaft rod 173 inserted into and coupled to the shaft rod through-hole 172a, and sandwiched between the disc 172 and the disc 172 by being fitted to the shaft rod 173; It is formed of a blow blade 175 for hitting the scum.

At this time, the power transmission means 160 is a pulley 160 coupled to the shaft 171 of the hydraulic motor 150 and the pulley coupled to the shaft 171 of the rotary ball 170, the pulley and the rotation of the hydraulic motor 150 It consists of a belt 162 for connecting the pulley of the sphere 170, the power transmission means 160, if the rotational force of the hydraulic motor 150 can be transmitted to the rotary sphere 170 chain and chain sprocket, gear type Or any structure.

The hydraulic motor 150 is coupled to the hydraulic motor bracket 140 formed on both sides of the clamp 130, it is preferable to be positioned in the vertical direction perpendicular to one side of the shaft 171 of the rotary ball 170.

The clamp 130 is configured to be coupled to the attachment connector (not shown) formed on the tip of the heavy machine (A) arm of the present invention lawn mower (100). At this time, the hydraulic line for providing heavy equipment (A), that is, the hydraulic hose is connected to the hydraulic motor 150, respectively.

The hydraulic line is connected in series to the two hydraulic motors 150, as shown in Figure 7, wherein one side of the hydraulic motor 150 shaft 171 is clockwise, the other side of the hydraulic motor 150 shaft ( 171 is connected to rotate counterclockwise.

Therefore, when a pair of rotary spheres 170 to rotate in the opposite direction to cut the wood (B) any one of the rotary spheres 170 hitting the blade 175 hits the grass or scum, etc., that is, one side If you let it be taken to cut it while cutting it while hitting the cutting blade 175 of the other rotary ball 170 is very good cutting efficiency.

In addition, the rotary ball 170 on the left side of the rotary ball 170 is rotated in the counterclockwise direction, the rotary ball 170 on the right is rotated in the clockwise direction, such as a piece of cut wood or a stone bump hit the blade on the bottom of the cover After bumping, it moves along the inner surface of the cover 120 and eventually spills toward the ground, thereby enabling safe work.

In addition, when the hydraulic lines are connected in series to the two hydraulic motors 150, the hydraulic pressure is not dispersed, so that the rotational force of the hydraulic motor 150 is not halved, and thus the cutting force is not reduced.

The shaft rod 173 is fitted to the cylindrical shaft fixture 174 is fixed to be coupled by the bolt 174a, the shaft rod fixture 174 is one of the disc 172 and the other disc 172 It is located in between to maintain the jammed state. Of course, the through-hole that can penetrate the shaft rod 173 is also formed in the main body 110 for insertion and discharge of the shaft rod 173.

Accordingly, if only the bolt 174a is loosened, the shaft rod 173 may fall out of the rotary hole 170 and the main body 110, thereby easily replacing the broken or worn blown blade 175.

The striking blade 175 is composed of a cylindrical tube 175a fitted to the shaft 173 and a striking portion 175b extending from the cylindrical tube 175a, but the inner diameter of the cylindrical tube 175a is the shaft ( It is formed larger than the outer diameter of the 173 to enable a 360-degree rotation about the shaft 173, so that when the striking blade 175 hits a stone or a hard object, it is able to rotate back 360 degrees by reaction This can cushion the shock. Therefore, the structure of the striking blade 175 can be significantly reduced.

The edge of the striking blade 175 is sharply cut at the end of the striking portion 175b may be formed with at least one "V" -shaped concave groove. The "V" -shaped concave groove is for improving cutting efficiency, but the structure of the striking blade 175 may be variously formed in accordance with a work environment, for example, in a grassy area and a large area of a variety of scum.

In the present invention, it is preferable that the height of both ends of the cover 120 is formed to be higher than the height of the shaft 171 of the rotary ball 170, which is pulled in advance when the cover 120 pushes the grass or scum Or press the scum with a cover is a structure for preventing the striking blade 175 from reaching the grass or scum.

In addition, the present invention may form a second rotary sphere 180 between the pair of rotary spheres 170, as shown in Figure 8, the second rotary sphere 180 by the power transmission means 160 Is rotated, the second rotary hole 180 is coupled to the shaft 181 and the shaft 181, a plurality of discs 182 are formed spaced apart by a predetermined interval, the disc 182 and the disc 182 It consists of a fixed hammer blade 183 is coupled between the fixed state.

In this case, unlike the rotatable strike blades 175, the fixed strike blade 183 is fixed to the disc 182 so that a stronger hit is possible, so that a thicker workpiece than the hitting blades 175 can be cut. Naturally, the second rotary hole 180 may be selectively used according to a work need.

As described above, although the present invention has been described by way of limited embodiments, the present invention is not limited thereto, and the technical spirit of the present invention and the following will be described by those skilled in the art to which the present invention pertains. Various modifications and variations will be possible within the scope of the appended claims.

100: the present invention heavy machine mower
110: main body 120: cover
130: clamp 140: hydraulic motor bracket
150: hydraulic motor 160: power transmission means
170: rotating ball 175: the strike blade
A: Heavy Equipment

Claims (7)

A pair of main bodies each having two wheelbases,
A pair of rotary spheres rotatably coupled by a wheelbase between the main bodies;
A cover coupled to the top of the main body to cover the upper portion of the rotational sphere,
A clamp installed on the cover to be coupled to heavy equipment,
Is formed on one side of the clamp consists of a pair of hydraulic motor for rotating the rotary sphere by the power transmission means,
The rotating sphere is coupled to the shaft and the shaft is coupled to the plurality of discs are formed spaced apart by a predetermined interval and the shaft through-hole formed on the edge side of each of the disc and the shaft is inserted into the shaft through-hole and coupled to the shaft and between the disc and the disc Mowers for heavy equipment, characterized in that consisting of a blow blade for hitting the scum.
The method of claim 1, wherein the hydraulic motor is composed of a pair and the hydraulic line is to be connected in series with the two hydraulic motors, one side of the hydraulic motor shaft is configured to rotate in the clockwise direction, the other side of the hydraulic motor shaft in a counterclockwise direction. Mowers for heavy machinery characterized by.
The method of claim 1, wherein the shaft is inserted into the cylindrical shaft fixing fixture is fixed to be coupled by a bolt, the shaft fixing fixture is located between any one disc and the other of the disc is configured to maintain a locked state Mowers for heavy machinery.
The cutting machine according to claim 1, wherein the striking blade is formed of a cylindrical tube fitted to the shaft and a striking portion extending from the cylindrical tube, wherein the inner diameter of the cylindrical tube is larger than the outer diameter of the shaft.
The mower according to claim 1, wherein the striking blade is sharply cut at the end of the striking portion, and at least one "V" shaped concave groove is formed.
The mower for heavy machinery according to claim 1, wherein the heights of both end portions of the cover are formed to be higher than the height of the shaft of the rotary ball.
The method according to claim 1, wherein a second rotary sphere is formed between the pair of rotary spheres, the second rotary sphere is coupled to the shaft and the shaft and coupled to the plurality of discs formed at predetermined intervals, and between the disc and the disc A mower for heavy machinery, characterized in that consisting of a fixed striker coupled in a fixed state.

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