JP2019218775A - Slope work vehicle and slope work facility including the same - Google Patents

Abstract

To provide a slope work vehicle and a slope work facility for improving posture stability and grounding property of the slope work vehicle on a slope.SOLUTION: A slope work vehicle 2 is suspended by a wire rope 4 hung over a pully 63 of a pully device 60. The slope work vehicle 2 includes: a lower travel body 14 having a lower frame 12 and an endless track 18 provided in both sides of the lower frame and enabling travel on a slope 6; and an upper work body 10 located above the lower frame 12 and having a work device 20 for performing work for the slope 6. The pully device 60 is provided in a rear part of the lower travel body 14 and above the lower travel body 14. A slope work facility 1 includes the slope work vehicle 2, terminal side fixation means 96, and a winch 70.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a slope work vehicle used for civil engineering work on a slope on a hillside, and to a slope work facility including the slope work vehicle.

  When performing civil engineering work on a steep slope such as a mountain surface using a sloped work vehicle such as a bulldozer or a backhoe, fix the distal end of the wire rope to a higher point on the steep slope (for example, a standing tree or an anchor pile) and attach the sloped work vehicle to the wire rope. Is suspended. Civil work on steep slopes by moving the slope work vehicle up, down, left and right along a steep slope by winding the base end side of the suspended wire rope of the slope work vehicle with a winding device such as a winch (For example, see Patent Document 1).

  For example, an inclined work vehicle is suspended by a wire rope that is wound around a pulley of a locking device provided in front of the inclined work vehicle (that is, above the inclined surface) (for example, Patent Document 2). See). By winding or rewinding the fixing wire attached to the locking device with the winch, the inclined work vehicle can move up or down the inclined surface.

  In general, the actual inclined surface on which the work vehicle works is not a flat shape but an uneven surface due to a convex body such as a rock mass, a bedrock, or a rubble. Therefore, in a slope work vehicle traveling on an uneven surface, the lower traveling portion of the lower traveling body of the slope work vehicle is less likely to be in close contact with the inclined surface than when traveling on a flat surface, and the so-called ground contact property of the lower traveling body is reduced. Since it is not good, the attitude of the slope work vehicle on the slope is likely to be unstable.

  In the configuration in which the inclined work vehicle is suspended using the pulley provided in front of the inclined work vehicle, the pulley in front receives the weight of the inclined work vehicle. Pulleys become heavy. When the heavy object pulley is provided in front of the inclined work vehicle, the center of gravity of the inclined work vehicle shifts to the front of the inclined work vehicle. Then, in order to prevent the wire rope bridged over the pulley from interfering with the inclined surface, the pulley is arranged to be spaced upward from the inclined surface. In a slope work vehicle in which the pulley is provided on the front side of the slope work vehicle and above the lower traveling body, a moment of gravity of the pulley acts on the lower front part of the lower travel body as a fulcrum, and the moment is lower. Attempts to lift the rear of the vehicle. As a result, the rear part of the lower traveling portion of the lower traveling body is separated from the inclined surface, and the inclined work vehicle is caused to fall forward, so that the contact property of the lower traveling body is reduced.

JP 2003-27520 A JP 2009-286507 A

  Therefore, a technical problem to be solved by the present invention is to provide a slope work vehicle in which the posture stability and the ground contact property of the slope work vehicle on the slope are improved, and a slope work facility including the slope work vehicle. To provide.

In order to solve the above-described problems, a sloped working vehicle according to one embodiment of the present invention includes:
An inclined work vehicle hung by a wire rope spanned over a pulley of a pulley device,
A lower traveling body having a lower frame and an endless track provided on both sides of the lower frame to enable traveling on an inclined surface;
An upper working body located above the lower frame, comprising an upper working body having a working device for performing work on the inclined surface,
The pulley device is provided at a rear portion of the lower traveling body and above the lower traveling body.

  According to the present invention, since the pulley device is provided at the rear portion of the lower traveling body, the center of gravity of the inclined work vehicle shifts to the rear side of the inclined work vehicle. As a result, it is possible to prevent the inclined work vehicle from trying to fall forward by the moment of gravity of the pulley device with the lower front part of the lower traveling body as a fulcrum, so that the posture stability of the inclined work vehicle on the inclined surface can be prevented. And the grounding property is improved.

1 is a side view illustrating an entire configuration of a sloped work vehicle according to an embodiment of the present invention. FIG. 2 is a side view of the inclined work vehicle illustrated in FIG. 1 when members related to a travel driving device are removed from a lower traveling body. It is a top view of the lower traveling body of a slope work vehicle. FIG. 4 is a side view of the lower traveling body shown in FIG. 3. FIG. 5 is an enlarged side view when members related to the traveling drive device are removed from the lower traveling body. FIG. 6 is a front view when members related to the traveling drive device are removed from the lower traveling body illustrated in FIG. 5. FIG. 6 is a rear view of the lower traveling body shown in FIG. 5 when members related to the traveling drive device are removed. It is a front view of the guide device of a slope work vehicle. FIG. 9 is a top view of the guide device shown in FIG. 8. FIG. 9 is a side view of the guide device shown in FIG. 8. It is a side view when the clamp device is seen from the inside. It is a top view of the clamp apparatus shown in FIG. It is a front view of the clamp apparatus shown in FIG. It is a top view of the pulley apparatus of a slope work vehicle. It is a side view of the pulley apparatus shown in FIG. It is a figure explaining an inclined surface work equipment.

  Hereinafter, a slope work vehicle 2 according to an embodiment of the present invention and a slope work facility 1 including the slope work vehicle 2 will be described in detail with reference to FIGS. 1 to 16. Note that the terms indicating directions such as front and rear as used in the present application refer to the upper part of the inclined surface 6 as the front when the inclined work vehicle 2 is suspended by the wire rope 4 on the inclined surface 6. In other words, the lower part of the inclined surface 6 is referred to as the rear.

  FIG. 1 is a side view illustrating an overall configuration of a sloped work vehicle 2 according to an embodiment of the present invention. FIG. 2 is a side view of the inclined work vehicle 2 shown in FIG. 1 when members related to the traveling drive device are removed from the lower traveling body 14. FIG. 3 is a top view of the lower traveling body 14 of the inclined work vehicle 2. FIG. 4 is a side view of the lower traveling body 14 shown in FIG. FIG. 5 is an enlarged side view when members related to the traveling drive device are removed from the lower traveling body 14. FIG. 6 is a front view of the lower traveling body 14 shown in FIG. 5 when members related to the traveling drive device are removed. FIG. 7 is a rear view of the undercarriage 14 shown in FIG. 5 when members related to the traveling drive device are removed. FIG. 8 is a front view of the guide devices 36 and 37 of the inclined work vehicle 2. FIG. 9 is a top view of the guide devices 36 and 37 shown in FIG. FIG. 10 is a side view of the guide devices 36 and 37 shown in FIG. FIG. 11 is a side view when the clamp devices 40 and 41 are viewed from the inside. FIG. 12 is a top view of the clamp devices 40 and 41 shown in FIG. FIG. 13 is a front view of the clamp devices 40 and 41 shown in FIG. FIG. 14 is a top view of the pulley devices 61 and 62 of the inclined work vehicle 2. FIG. 15 is a side view of the pulley devices 61 and 62 shown in FIG. FIG. 16 is a diagram for explaining the inclined surface working equipment 1.

  First, the overall configuration of the inclined work vehicle 2 will be described with reference to FIG.

  The inclined working vehicle 2 such as a hydraulic excavator called a bulldozer or a backhoe includes an upper working body 10 on which a working device 20 is rotatably mounted, and a lower traveling body 14 disposed below the upper working body 10. Prepare.

  The upper working body 10 is equipped with an engine and a hydraulic circuit. Various operations on the inclined work vehicle 2 can be performed by remote control using a remote control or by the operator directly operating the operation unit 16 in the driver's seat.

  The upper working body 10 has a working device 20 for performing work on the inclined surface 6 on the front side. When the working device 20 is an excavator, the working device includes a boom 22, an arm 24, and a bucket 26, and a hydraulic operating unit including a boom cylinder 23, an arm cylinder 25, and a bucket cylinder 27 for operating these components. Is provided. The hydraulic operating section is driven by hydraulic pressure supplied from a hydraulic circuit.

  The lower traveling body 14 includes the lower frame 12 and a traveling driving device. The traveling drive device includes a pair of left and right endless tracks 18 pivotally supported on both sides in the vehicle width direction of the lower frame 12, a drive wheel 19 for driving the endless track 18, and a drive wheel 19 with hydraulic pressure supplied from a hydraulic circuit. And a hydraulic motor (running motor) to be driven. The drive wheel 19 is located below the inclined surface 6, that is, behind the lower traveling body 14.

  On the front side of the lower traveling body 14, the movable support base 11 is supported by a support arm 15 fixed to the lower frame 12. The movable support base 11 is rotatable around its front end. The tilt angle of the movable support base 11 is adjusted by a work body tilt cylinder 17 that connects the movable support base 11 and the lower traveling body 14. The work body tilt cylinder 17 is driven by hydraulic pressure supplied from a hydraulic circuit. The turning of the upper working body 10 is enabled by the turning device 13 provided between the movable support base 11 and the upper working body 10.

  Behind the rear end of the lower traveling body 14, a blade 30 is provided. The blade 30 is also referred to as an earth removal plate. The blade 30 leveles the slope 6, pushes down the soil generated by excavation work, etc. below the slope 6, and tilts or falls the slope work vehicle 2 during the work. Or prevent it. The blade 30 is supported by the lower frame 12 and connected to the lower frame 12 by a blade arm 31. A blade cylinder 32 is provided between the blade arm 31 and the lower frame 12, and a landing position at which the blade 30 lands on the inclined surface 6 or a blade 30 is moved from the inclined surface 6 by expansion and contraction of the blade cylinder 32. It can be a takeoff position that leaves. The blade cylinder 32 is driven by hydraulic pressure supplied from a hydraulic circuit.

  Next, components of the lower traveling body 14 in the inclined work vehicle 2 will be described.

  The lower frame 12 of the lower traveling structure 14 includes a girder 13a on one side, a girder 13b on the other side, a front beam 15a, and a rear beam 15b. One side girder 13a and the other side girder 13b extend in the vehicle length direction, and front beam 15a and rear beam 15b extend in the vehicle width direction. One side girder 13a and the other side girder 13b are connected by a front beam 15a and a rear beam 15b.

  As shown in FIGS. 3 to 7, a front bracket 34 on one side and a front bracket 35 on the other side are attached to the front beam 15 a, and the rear bracket 64 and the other side on one side are mounted on the rear beam 15 b. The rear bracket 65 is attached. A support arm 15 is attached to the front beam 15a.

  As shown in FIG. 3, a guide device 36 on one side and a clamp device 40 on one side are attached to the front side and the rear side of the mounting portion of the front bracket 34 on one side, respectively. A guide device 37 on the other side and a clamp device 41 on the other side are attached to the front side and the rear side of the mounting portion of the front bracket 35 on the other side, respectively. The pulley device 61 on one side is attached to the mounting portion of the rear bracket 64 on one side. The pulley device 62 on the other side is attached to the mounting portion of the rear bracket 65 on the other side. Since the mounting portions of the front bracket 34 on one side, the front bracket 35 on the other side, the rear bracket 64 on one side, and the rear bracket 65 on the other side are located above the upper track portion of the endless track 18, each mounting portion is The placement section can be prevented from interfering with the upper track section of the endless track 18.

  A guide device 36 on one side and a guide device 37 on the other side for guiding the wire rope 4 are provided at the front of the lower traveling body 14. According to this configuration, the wire rope 4 suspended at various suspension angles can be directed to the pulley 63 located at the rear of the inclined work vehicle 2.

  As shown in FIGS. 8 to 10, the guide device 36 on one side and the guide device 37 on the other side have an integrated configuration in which an upper guide 38 a and a lower guide 38 b are fastened by, for example, four guide bolts 38 e. are doing. The guide device 37 has a guide hole 38g that opens in a so-called funnel shape and penetrates in the vehicle length direction. The guide hole 38g has a front guide hole 38c and a rear guide hole 38d. The front guide hole 38c has a bulge shape in which the opening diameter decreases from the front side to the rear side. The rear guide hole 38d has a substantially constant opening diameter through which the wire rope 4 can pass. According to this configuration, even if the wire rope 4 is supplied from various directions, the wire rope 4 can be stably moved in one direction, so that stable movement of the wire rope 4 is provided.

  The upper guide 38a and the lower guide 38b are made of a material softer than the wire rope 4, so that the upper guide 38a and the lower guide 38b are more easily worn than the wire rope 4, in other words, the wire rope 4 is worn. It is configured to be difficult. When the moving wire rope 4 comes into contact with a transition portion that transitions from the front guide hole 38c to the rear guide hole 38d, the transition portion is rubbed and scraped. However, by providing the rear guide hole 38d extending in the vehicle length direction, the cut portion gradually shifts to the rear side of the rear guide hole 38d. By increasing the length of the rear guide hole 38d in the vehicle length direction, the removal time required for shaving can be extended, and the number of replacements of the upper guide 38a and the lower guide 38b can be reduced.

  The clamp device 40 on one side and the clamp device 41 on the other side for clamping the wire rope 4 while the traveling of the inclined work vehicle 2 is stopped are located near and behind the guide device 36 on the one side and the guide device 37 on the other side, respectively. It is provided in. According to this configuration, even if the wire rope 4 is cut during the stoppage of travel, the slope work vehicle 2 can be prevented from slipping down by the clamping of the wire rope 4 by the clamp device 41.

  As shown in FIGS. 11 to 13, the clamp device 40 on one side and the clamp device 41 on the other side are disposed on the side of the wire rope 4 with the pressing plate 42 supported by the shaft 46 and the shaft 46 interposed therebetween. And a pressure means disposed on the opposite side of the wire rope 4 with the shaft 46 interposed therebetween. The pressing plate 42 and the receiving plate 44 are made of a steel material that can be heat-treated for surface hardening, for example, carbon steel for machine structural use (for example, S45C). The wire rope 4 is clamped between the press contact concave surfaces 43 of the pressing plate 42 and the receiving plate 44. In such a configuration, each pressure contact concave surface 43 corresponds to an action point, the shaft 46 corresponds to a fulcrum, the pressing means corresponds to a force point, and the distance between the pressing means and the shaft 46 is The principle of leverage is formed, which is dimensioned to be longer than the distance between the press contact concave surface 43 and the shaft 46.

  Naturally, various forms such as hydraulic pressure, electromagnetic force, and spring elastic force can be used as the pressurizing means for providing the clamping force. However, generation of hydraulic pressure or electromagnetic force requires external power such as electricity or an engine, and in the unlikely event that external power such as electricity or an engine is not supplied, the clamp device 40 does not function. Therefore, even when external power such as electricity or an engine is not supplied, it is preferable to use a mechanical spring elastic force as the clamping force so that the clamping device 40 functions effectively.

  Next, an example in which a mechanical spring elastic force is used as a clamping force will be described.

  Immediately below the pressing plate 42 on the opposite side of the wire rope 4, there is provided a pressing means using a spring elastic force. That is, a plurality of disc springs 54 exhibiting a large spring elasticity even in a small space are held between the disc spring holding plate 50 and the cylinder head of the clamping cylinder 52. A clamping cylinder 52 is provided on the front bracket 34 on one side and the front bracket 35 on the other side. The upper end of the cylinder rod 56 of the clamping cylinder 52 is fixed to the disc spring holding plate 50 by the disc spring fixing bolt 58, so that the disc spring holding plate 50 and the cylinder rod 56 are integrated. Therefore, the disc spring 54 is held between the disc spring holding plate 50 and the cylinder head of the clamping cylinder 52. An adjustment bolt 48 for adjusting the gap between the press contact concave surfaces 43 is provided on the pressing plate 42 on the opposite side of the wire rope 4. Each press contact concave surface 43 is roughened to prevent slippage when the wire rope 4 is clamped. Various rough surfaces are formed by a plurality of minute concave portions, minute convex portions, grooves, and projecting portions. For example, a rough surface of a finish symbol ▽ (25 a in Ra) can be formed by grinding with a grinder or a sander. At least each of the concave contact surfaces 43 has been subjected to a surface hardening treatment by high frequency heat treatment so that the surface hardness is HRC45 or more. The lower end of the adjusting bolt 48 is in contact with the upper surface of the disc spring holding plate 50. Therefore, the spring elastic force of the plurality of disc springs 54 is transmitted in the order of the disc spring holding plate 50, the adjustment bolt 48, the opposite side of the pressing plate 42 to the wire rope 4, and the pressing plate 42 to the side of the wire rope 4. 4 is used as a clamping force.

  In the disc spring 54, which is a shallow conical ring, the spring elastic force is transmitted from the inner helicopter on the upper surface and the outer helicopter on the lower surface. With only one disc spring 54, it is not possible to secure such a large amount of deflection. Therefore, by laminating a plurality of paired disc springs 54 in which the inner helicopter on the upper surface of one disc spring 54 and the inner helicopter on the upper surface of another disc spring 54 are stacked, a desired spring elastic force and large The amount of bending can be secured.

  In the above embodiment, the spring elastic force is urged toward the opposite side of the wire rope 4 of the pressing plate 42 to clamp the wire rope 4 between the side of the wire rope 4 of the pressing plate 42 and the receiving plate 44. ing. At this time, unless the disc spring holding plate 50 is pressed down by any means, the wire rope 4 is always clamped. In other words, the clamp device 40 on one side and the clamp device 41 on the other side are basically designed from the viewpoint of safety, in which the wire rope 4 is clamped. When the inclined work vehicle 2 moves, the wire rope 4 does not need to be clamped. Therefore, when the inclined work vehicle 2 is operated for traveling, hydraulic pressure is applied to the cylinder head side in the cylinder tube of the clamping cylinder 52. Is supplied, the cylinder rod 56 is pulled into the cylinder tube, whereby the disc spring holding plate 50 is pulled down. Then, while the opposite side of the wire rope 4 of the pressing plate 42 is lowered, the side of the wire rope 4 of the pressing plate 42 is raised, so that the clamp of the wire rope 4 is released.

  As shown in FIGS. 3 and 4, the pulley device 60 is provided such that the pulley 63 of the pulley device 60 is located at the rear of the lower traveling body 14 and above the lower traveling body 14. Since the pulley device 60 having the pulley 63 is provided at the rear portion of the lower traveling body 14, the center of gravity of the inclined work vehicle 2 is shifted to the rear side of the inclined work vehicle 2 by the weight of the pulley device 60.

  The pulley device 60 includes one pulley device 61 disposed on one side, and another pulley device 62 disposed on the other side. According to this configuration, the suspension force applied to the pulley 63 when the inclined work vehicle 2 is suspended by the wire rope 4 can be distributed to the pulley 63 on one side and the pulley 63 on the other side. 63 can be used. In addition, one pulley device 60 having one relatively large pulley (not shown) may be disposed at the rear of the lower traveling body 14 and substantially at the center in the vehicle width direction. The pulley device 61 on one side and the pulley device 62 on the other side, or one pulley device of a relatively large size, are located behind the lower traveling body 14 and at the take-off position of the blade 30, the blade arm 31, and the blade cylinder. 32.

  As shown in FIGS. 3, 14 and 15, the pulley device 61 on one side and the pulley device 62 on the other side are attached to the mounting portions of the rear bracket 64 on one side and the rear bracket 65 on the other side. I have. The front and rear spacers 63b are erected on each mounting portion so as to be separated from each other in the vehicle length direction. A drop-off prevention plate 63c is fixed to the front and rear spacers 63b by a plurality of connecting bolts 63g so as to connect the front and rear spacers 63b. The pulley 63 is rotatably supported by a rotating shaft 63d disposed between each of the mounting portions of the rear bracket 64 on one side and the rear bracket 65 on the other side and the corresponding drop-prevention plate 63c. The pulley 63 has a pulley groove 63f on the outer periphery of the disk body. In the pulley 63, when the wire rope 4 is hung on the pulley groove 63f and the wire rope 4 moves, the disk rotates about the rotation shaft 63d. The drop prevention plate 63c and the spacer 63b prevent the wire rope 4 bridged over the pulley groove 63f from being accidentally dropped from the pulley groove 63f.

  The wire rope 4 for suspending the sloped work vehicle 2 is formed by forming a strand in which several to several tens of wires are combined in a single layer or a multi-layer, and then a predetermined number of strands are wrapped around the cord. It is manufactured by twisting at a pitch of.

  In the lower traveling body 14, the wire rope 4 is provided with one guide device 36, one clamp device 40, one pulley device 61, another pulley device 62, another clamp device 41, and another guide. It is bridged in the order of the device 37. That is, specifically, the wire rope 4 is provided between the guide hole 38g on one side, the respective press contact concave surfaces 43 on one side, the pulley groove 63f on one side, the pulley groove 63f on the other side, and the respective press contact concave surfaces on the other side. It is bridged in the order of the guide holes 38g on the other side and on the other side.

  Further, the one-side clamp device 40 and the other-side clamp device 41 are provided near and behind the one-side guide device 36 and the other-side guide device 37, respectively. The length of the wire rope 4 from being clamped to being clamped by the clamp device 41 on the other side via the pulley device 60 is long. According to this configuration, the adjustment allowance for the wire rope 4 can be secured, and work and adjustment when the wire rope 4 is bridged over the pulley device 60 become easy.

  As shown in FIG. 3, the wire rope 4 laid around the lower traveling body 14 has a substantially U shape in plan view. One side guide hole 38g and one side pulley groove 63f are arranged such that the wire rope 4 located on one side extends substantially parallel to the vehicle length direction and the height direction of the lower traveling body 14. I have. Similarly, the guide hole 38g on the other side and the pulley groove 63f on the other side are arranged such that the wire rope 4 located on the other side extends substantially parallel to the vehicle length direction and the height direction of the lower traveling body 14. Are located. The pulley groove 63f on one side and the pulley on the other side such that the wire rope 4 located at the rear of the lower traveling body 14 extends substantially parallel to the vehicle width direction and the height direction of the lower traveling body 14. The groove 63f is arranged.

  When the wire ropes 4 located on one side and the other side are located outside the center in the width direction of the endless track 18, the swing of the lower traveling body 14 in the vehicle width direction increases, and the posture of the sloped work vehicle 2 is reduced. It tends to be unstable. When the wire ropes 4 located on one side and the other side are arranged closer to the inside in the vehicle width direction, the wire ropes 4 are connected to the movable support base 11 of the upper working body 10, the working body tilting cylinder 17, or the support arm 15. The interference may hinder the movement of the wire rope 4. Therefore, the wire ropes 4 located on the one side and the other side extend inside the center in the width direction of the endless track 18 and do not interfere with the upper working body 10. According to this configuration, the posture of the inclined work vehicle 2 is stabilized, and the wire rope 4 can be moved.

  Therefore, in the inclined work vehicle 2 according to the present invention, since the pulley device 60 is provided at the rear of the lower traveling body 14, the center of gravity of the inclined work vehicle 2 shifts to the rear side of the inclined work vehicle 2. As a result, the inclined work vehicle 2 can be prevented from falling forward due to the moment of gravity of the pulley device 60 with the lower part in front of the lower traveling body 14 as a fulcrum, so that the inclined work vehicle on the inclined surface 6 can be prevented. 2 improves the posture stability and the grounding performance.

  Next, a description will be given of the crossing of the slope work equipment 1 and the wire rope 4 with reference to FIG.

  FIG. 16 shows a terminal-side fixing place 76 which is positioned higher than the work target area and to which the end of the wire rope 4 is fixed, a pulley device 60 installed on the inclined work vehicle 2, and a higher position than the work target area. 5 shows the relationship between the base-side pulley 82 installed at the base-side fixed place 72 located at the position No. 7 and a winch 70 that winds the wire rope 4 below the work target area. The distal end of the wire rope 4 is locked by a distal locking sling 96 that is fastened to a standing tree or anchor bolt 76 located on the distal side. The distal locking sling 96 functions as distal fixing means for fixing the distal end of the wire rope 4. The proximal pulley 82 is locked to a proximal locking sling 92 that is fastened to a standing tree or anchor bolt 72 located on the proximal side. The pulley device 60 includes a pulley device 61 on one side and a pulley device 62 on the other side. The spacing between the distal standing tree or anchor bolt 76 and the proximal standing tree or anchor bolt 72 is approximately 20 meters or more due to the width of a row of operations on the ramp 6.

  In such a configuration, the wire rope 4 from the winch 70 is wound around each of the pulleys 63 of the proximal pulley 82, the pulley device 61 on one side, and the pulley device 62 on the other side, and then, the distal locking sling is provided. 96. By operating the remote controller or the operation unit 16, the blade 30 of the inclined work vehicle 2 is taken off from the inclined surface 6, and the clamp of the wire rope 4 by the clamp device 40 on one side and the clamp device 41 on the other side is released. I do. Thereafter, when the winch 70 is activated and the wire rope 4 is wound up, the pulleys 63 of the pulley device 61 on one side and the pulley device 62 on the other side function as moving pulleys. At this time, by running the endless track 18 of the inclined work vehicle 2, the load on the winch 70 for winding up the wire rope 4 can be reduced, and the climbing speed can be increased. In addition, if the release of the clamp of the wire rope 4 is not confirmed, the movement of the sloped work vehicle 2 can be configured to be impossible.

  When the inclined surface work vehicle 2 is pulled up to the uppermost position of the work column by the winch 70 or the like, the hydraulic pressure supplied to the clamping cylinder 52 is released. As a result, the spring elastic force of the disc spring 54 effective for the clamp substantially appears, and the opposite side of the wire rope 4 of the pressing plate 42 is pushed up. Then, when the wire rope 4 side of the pressing plate 42 is pushed down, the wire rope 4 is clamped between the press contact concave surface 43 of the press plate 42 and the press contact concave surface 45 of the receiving plate 44. The clamp of the wire rope 4 is performed by the clamp device 40 on one side and the clamp device 41 on the other side. The work on the inclined surface 6 is performed in a state where the wire rope 4 is clamped by the clamp device 40 on one side and the clamp device 41 on the other side. When the work around the inclined work vehicle 2 is completed, hydraulic pressure is supplied to the clamping cylinder 52, and the winch 70 is started to lower the inclined work vehicle 2 on a slope. At this time, by running the endless track 18 so that the sloped work vehicle 2 descends, the resistance between the sloped work vehicle 2 and the slope 6 can be reduced, and the descending speed can be increased. In addition, if the clamp of the wire rope 4 is not confirmed, the operation of the inclined work vehicle 2 can be configured to be impossible.

  When descending to the next work place, the hydraulic pressure supplied to the clamping cylinder 52 is released, the wire rope 4 is clamped, and the supply of hydraulic pressure to the clamping cylinder 52 and the operation of the winch 70 are stopped. Let it. The work on the inclined surface 6 is performed in a state where the wire rope 4 is clamped by the clamp device 40 on one side and the clamp device 41 on the other side. By operation of the remote controller or the operation unit 16, such clamping of the wire rope 4, work on the slope 6, release of the clamp of the wire rope 4, descending, clamping of the wire rope 4, work on the slope 6, wire rope The series of operations in the vertical direction (vertical direction) from the top to the bottom of the work target row is completed by repeating the release of the clamp and the descending slope of step 4.

  After confirming that the sloped work vehicle 2 has retreated to a safe place below the sloped surface 6, the wire rope 4 at the distal end fixed place 76 is released and the wire rope 4 is locked. The distal end of the wire rope 4 is locked to the distal locking sling 96 of the appropriate distal anchoring location 76 located laterally (left or right) of the distal anchoring location 76 so that the distal anchoring location 76 can be moved laterally. Shift in the direction. At the same time, the proximal fixing location 72 can be shifted in the same direction. Then, by operating the remote controller or the operation unit 16, the inclined work vehicle 2 is lifted up to the highest position in the next row of the work target area by the winch 70 or the like. Then, as described above, the clamp of the wire rope 4, the work on the slope 6, the release of the clamp of the wire rope 4, the descending slope, the clamp of the wire rope 4, the work on the slope 6, the release of the clamp of the wire rope 4, By repeating the descending, a series of operations in the vertical direction (up-down direction) from the top to the bottom of the next row of the work target area are completed.

  By repeating the movement of the terminal side fixed place 76 and the like, and a series of operations in the vertical direction (up and down direction) from the top to the bottom of the work column, the work column is sequentially moved in the horizontal direction. The target row is enlarged in a planar manner, and the work in the predetermined work target area can be completed.

  Although the specific embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and can be implemented with various modifications within the scope of the present invention.

  In the above embodiment, the excavator is exemplified as the working device 20, but the working device 20 can be used as, for example, a drilling device by changing a portion of the bucket 26 to another attachment. According to this configuration, it is possible to provide the inclined surface work vehicle 2 that can perform a plurality of operations such as an excavation operation and a drilling operation.

  The drilling device drills the inclined surface 6 by hitting and rotating a drilling rod, and is used, for example, in the following method. As a countermeasure against collapse of the slope 6 having a steep slope, there are, for example, a ground anchor method for large-scale collapse prevention and a rock bolt method for small- to medium-scale collapse prevention. In the ground anchor method, a hole for burying the anchor body is drilled by a drilling device, and a high-strength tensile material is fixed to the stable ground underground by grout (mortar injection) and prestress is applied. , To stabilize the inclined surface 6. The rock bolt method uses a drilling machine to drill holes in the ground, inject mortar or cement milk and arrange a core material such as steel to deform or slide the ground against the sliding force of the earth mass. The occurrence of is suppressed.

  Further, the blade 30 can have an extension member (not shown) that extends so as to project outward on the one side and the other side in the vehicle width direction. The extension member is made of, for example, an H-shaped steel having excellent bending rigidity per weight. The extension member is configured to be detachably attached to the blade 30 (for example, the extension member is bolted to the blade 30), or is configured to be expandable and contractible in the vehicle width direction (a plurality of elements extend in the vehicle width direction). Sliding movement). Since the blade 30 has the extension member, the contact property in the vehicle width direction can be improved.

  The present invention and embodiments are summarized as follows.

The inclined work vehicle 2 according to one aspect of the present invention includes:
An inclined work vehicle 2 suspended by a wire rope 4 bridged over a pulley 63 of a pulley device 60,
A lower traveling body 14 having a lower frame 12, and an endless track 18 provided on both sides of the lower frame 12 to enable traveling on the inclined surface 6;
An upper work body 10 that is located above the lower frame 12 and that has an operation device 20 for performing work on the inclined surface 6;
The pulley device 60 is provided so as to be located at the rear of the lower traveling body 14 and above the lower traveling body 14.

  According to the above configuration, since the pulley device 60 is provided at the rear of the lower traveling body 14, the center of gravity of the inclined work vehicle 2 shifts to the rear side of the inclined work vehicle 2. As a result, the inclined work vehicle 2 can be prevented from falling forward by the moment of gravity of the pulley 63 with the front lower portion of the lower traveling body 14 as a fulcrum, so that the inclined work vehicle 2 on the inclined surface 6 can be prevented. The posture stability and the ground contact of the vehicle are improved.

Further, in the inclined work vehicle 2 of one embodiment,
Guide devices 36 and 37 for guiding the wire rope 4 so that the wire rope 4 extends substantially parallel to the vehicle length direction and the height direction of the lower traveling body 14 include the lower traveling body 14. Is provided at the front of the vehicle.

  According to the above embodiment, the wire rope 4 suspended at various suspension angles can be directed to the pulley 63 located at the rear of the inclined work vehicle 2.

Further, in the inclined work vehicle 2 of one embodiment,
Behind the guide devices 36 and 37, clamp devices 40 and 41 for clamping the wire rope 4 while the running of the sloped work vehicle 2 is stopped are provided.

  According to the above-described embodiment, even when the wire rope 4 is cut during the stoppage of travel, the slope work vehicle 2 can be prevented from slipping down by the clamp of the wire rope 4 by the clamp device 41.

Further, in the inclined work vehicle 2 of one embodiment,
The wire rope extends inside a center in the width direction of the endless track and does not interfere with the upper working body.

  According to the above embodiment, the posture of the inclined work vehicle 2 is stabilized, and the wire rope 4 can be moved.

Further, in the inclined work vehicle 2 of one embodiment,
The pulley device is provided on each of one side and the other side in the vehicle width direction of the lower traveling body.

  According to the above embodiment, when the inclined work vehicle 2 is suspended by the wire rope 4, the suspension force applied to the pulley 63 can be distributed to the one side pulley 63 and the other side pulley 63, so that a small-sized A pulley 63 can be used.

Further, in the inclined work vehicle 2 of one embodiment,
Behind the rear end of the lower traveling body 14, a blade 30 is provided.

  According to the above-described embodiment, the slope 6 is leveled, the earth removal generated by excavation work or the like is pushed down below the slope 6, and the sloped work vehicle 2 is prevented from tilting or tipping during the work. can do.

Further, in the inclined work vehicle 2 of one embodiment,
The blade 30 has an extension member extending in the vehicle width direction.

  According to the above embodiment, it is possible to enhance the contact property in the vehicle width direction.

Further, in the inclined work vehicle 2 of one embodiment,
The working device 20 is a drilling device or a drilling device.

  According to the above-described embodiment, it is possible to provide the inclined work vehicle 2 that can perform a plurality of operations such as an excavation operation and a drilling operation.

1: slope work equipment 2: slope work vehicle 4: wire rope 6: slope 10: upper work body 11: movable support base 12: lower frame 13: revolving device 13a: one side girder 13b: other side Girder part 14: Lower traveling body 15: Support arm 15a: Front beam part 15b: Rear beam part 16: Operation part 17: Work body tilt cylinder 18: Endless track 19: Drive wheel 20: Working device 21: Boom arm 22: Boom 23: Boom cylinder 24: Arm 25: Arm cylinder 26: Bucket 27: Bucket cylinder 30: Blade 31: Blade arm 32: Blade cylinder 34: Front bracket 35 on one side: Front bracket 36 on the other side: One side guide device 37: other side guide device 38a: upper guide 38b: lower guide 38c: front guide hole 38d: rear guide hole 38e: guide bolt 8g: Guide hole 40: Clamping device 41 on one side: Clamping device 42 on the other side: Pressing plate 43: Pressing concave surface 44: Receiving plate 45: Pressing concave surface 46: Shaft 48: Adjusting bolt 50: Disc spring holding plate 52: Clamp Cylinder 54: Belleville spring 56: Cylinder rod 58: Belleville spring fixing bolt 60: Pulley device 61: Pulley device 62 on one side: Pulley device 63 on the other side: Pulley 63b: Spacer 63c: Fall-off prevention plate 63d: Rotating shaft 63g : Connecting bolt 64: Rear bracket 65 on one side: Rear bracket 70 on the other side: Winch (winding device)
72: Standing tree or anchor bolt (proximal fixing point)
76: Standing tree or anchor bolt at the end (fixed place at the end)
82: Base side pulley (constant pulley)
92: proximal locking sling 96: distal locking sling (terminal fixing means)
C: Endless track width center

In order to solve the above-described problems, an inclined working vehicle according to one embodiment of the present invention includes:
An inclined work vehicle suspended by a single wire rope suspended over a pulley of a pulley device,
A lower traveling body having a lower frame and an endless track provided on both sides of the lower frame to enable traveling on an inclined surface;
An upper working body located above the lower frame, comprising an upper working body having a working device for performing work on the inclined surface,
The pulley device is provided at a rear portion of the lower traveling body and above the lower traveling body ,
The wire rope located on one side in the vehicle width direction of the lower traveling body extends substantially parallel to the vehicle length direction of the lower traveling body, and is located on the other side in the vehicle width direction of the lower traveling body. The wire rope extends substantially parallel to the vehicle length direction of the lower traveling body, and the wire rope bridged over the pulley has a substantially U shape in plan view. It is characterized.

Claims (9)

An inclined work vehicle hung by a wire rope spanned over a pulley of a pulley device,
A lower traveling body having a lower frame and an endless track provided on both sides of the lower frame to enable traveling on an inclined surface;
An upper working body located above the lower frame, comprising an upper working body having a working device for performing work on the inclined surface,
The inclined work vehicle according to claim 1, wherein the pulley device is provided at a rear portion of the lower traveling body and above the lower traveling body.   A guide device for guiding the wire rope such that the wire rope extends substantially parallel to the vehicle length direction and the height direction of the lower traveling body is provided at a front portion of the lower traveling body. The inclined work vehicle according to claim 1, wherein:   The inclined work vehicle according to claim 2, wherein a clamp device that clamps the wire rope while the traveling of the inclined work vehicle is stopped is provided behind the guide device.   4. The wire rope according to claim 1, wherein the wire rope extends inside a center of the endless track in the width direction and does not interfere with the upper work body. 5. The slope work vehicle according to the paragraph.   The slope work according to any one of claims 1 to 4, wherein the pulley device is provided on each of one side and the other side in the vehicle width direction of the lower traveling body. car.   The slope work vehicle according to any one of claims 1 to 5, wherein a blade is provided behind a rear end of the lower traveling body.   The inclined work vehicle according to claim 6, wherein the blade has an extension member extending in a vehicle width direction.   The slope work vehicle according to any one of claims 1 to 7, wherein the work device is an excavator or a drilling device. An inclined work vehicle according to any one of claims 1 to 8,
A distal fixing means for fixing the distal end of the wire rope to a distal fixing place located higher than the work target area,
A winch that is located at a position higher than the work target area and is located at a proximal fixed position that is located a predetermined distance laterally from the distal fixed position and is connected to the proximal end of the wire rope; And slope work equipment comprising:

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