Slope work equipment

Abstract

To provide a slope work device capable of stably traveling a slope machine traveling on a slope.SOLUTION: A slope work device is provided with a slope face machine that self-travels on a slope, and a support machine that travels with the slope machine and supports the slope machine via a support rope wound by a winch, in a slope working device, one end of the support rope is connected to the winch to wind a first pulley on the support machine side and a second pulley on the slope machine side, and the other end is connected to a spring type shock absorbing mechanism, and a shock absorbing mechanism is supported by the support machine.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a slope working device. [Background technology]

[0002] Conventionally, when a slope machine such as a compaction roller or asphalt finisher is used on a slope, there has been a technique in which a support machine equipped with a support rope is run along a flat work path located above or below the slope, and the slope machine is supported via the support rope. Patent Document 1 discloses a support machine that runs along with the slope machine, supporting the slope machine on the slope by letting out or reeling in the support rope from a winch to adjust the tension of the support rope. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 1-260103 Summary of the Invention [Problem to be solved by the invention]

[0004] The technology of Patent Document 1 had an issue with the stability of the slope machine's travel when the tension of the support rope changes due to a change in the distance between the slope machine and the support machine. If the distance between the slope machine and the support machine suddenly becomes smaller, the support rope slackens and the tension decreases, so a force is applied to the slope machine in a direction that tilts it downward along the slope. On the other hand, if the distance between the slope machine and the support machine suddenly becomes larger, the support rope becomes taut and the tension increases, so a force is applied to the slope machine in a direction that tilts it upward along the slope. The present invention has been made in consideration of the above-mentioned circumstances, and aims to provide a slope work device that can suppress sudden changes in tension in the support rope and allow a slope work machine to travel stably on a slope. [Means for solving the problem]

[0005] The present invention relates to a slope work device comprising a slope machine that is self-propelled up a slope, and a support machine that accompanies the slope machine and supports the slope machine via a support rope that is wound up by a winch, one end of the support rope being connected to the winch and wound around a first pulley on the support machine side and a second pulley on the slope machine side, and the other end being connected to a spring-type buffer mechanism that is supported by the support machine. Effect of the Invention

[0006] According to the present invention, it is possible to suppress sudden changes in tension of the support ropes, and to allow the slope machine to travel stably on a slope. [Brief description of the drawings]

[0007] [Figure 1] FIG. [Diagram 2] Schematic diagram of the support rope. [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] FIG. 11 is a side view of a slope working device according to a second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] [1. First embodiment] [1-1. Configuration] Fig. 1 is a side view of the slope work device 1. Fig. 2 is a diagram showing an outline of the support rope 25. The slope work device 1 comprises a slope machine 2 that self-propels on a slope S, and a support machine 3 that accompanies the slope machine 2 on a flat road G located above the slope S and supports the slope machine 2. The slope S is, for example, an inclined road surface provided on a test course or a sports stadium.

[0009] The slope machine 2 may be, for example, an asphalt finisher that spreads an asphalt mixture to be paved on the slope S, or a rolling roller that rolls the slope S.

[0010] The support machine 3 includes a traveling section 5 at the bottom, a rotating body 7 that is rotatable above the traveling section 5, and a vehicle body 9 that is disposed on the rotating body 7. The traveling section 5 includes a plurality of tires 11, and travels on a flat road G.

[0011] A driver's cab 13 is arranged in the vehicle body 9, and an operator gets into the driver's cab 13 to operate the support machine 3.

[0012] The vehicle body 9 includes a winch 15, a first pulley 17, a second pulley 19, a third pulley 21, and a spring-type buffer mechanism 23.

[0013] The winch 15 is mounted on the vehicle body and can adjust the tension of the support rope 25 by winding or unwinding the support rope 25.

[0014] The first pulley 17 is supported by a boom 27 provided on the vehicle body 9. The first pulley 17 is wound around a support rope 25 that is paid out from a winch 15.

[0015] The second pulley 19 is connected to the first pulley 17 by winding the support rope around it. The second pulley 19 is formed to be freely movable according to the length of the support rope 25 that has been reeled out. The second pulley 19 has a bracket 29 on the side. The bracket 29 engages with the slope machine 2 to connect the slope machine 2 and the support machine 3. Note that a support rope 25 may be provided between the bracket 29 and the slope machine 2, and the slope machine 2 may be supported by the support machine 3 via the support rope 25.

[0016] As shown in FIG. 2, the number of turns of the support rope 25 between the first pulley 17 and the second pulley 19 is three, but is not limited to this.

[0017] The third pulley 21 is supported by the support machine 3, and is wound around a support rope 25 extending from the second pulley 19. The support rope 25 extending from the third pulley 21 to the support machine 3 side is connected to a buffer mechanism 23.

[0018] The buffer mechanism 23 is supported by the support machine 3. One end of a support rope 25 is connected to the winch 15, and is wound around the first pulley 17 arranged on the support machine 3 side and the second pulley 19 on the slope machine 2 side. The other end of the support rope 25 is connected to the buffer mechanism 23.

[0019] Fig. 3 is a side view of the buffer mechanism 23. Fig. 3 shows a case where the slope machine 2 is supported by the support ropes 25, the support ropes 25 are taut and have a large tension, and a compression spring 35, which will be described later, is contracted. Fig. 4 is a plan view of the buffer mechanism 23. Fig. 3 shows a case where the tension of the support ropes 25 is small and the compression spring 35, which will be described later, is not contracted. In Figs. 3 and 4, the lower side of the figures corresponds to the slope machine 2 side, and the upper side of the figures corresponds to the support machine 3 side.

[0020] The buffer mechanism 23 includes an outer cylinder 31, an inner cylinder 33 that slides inside the outer cylinder 31, and a compression spring 35 that connects the outer cylinder 31 and the inner cylinder 33 together.

[0021] As shown in Fig. 4, the outer cylinder 31 opens on the support machine 3 side, and a compression spring 35 is fixed to the bottom surface 31A of the other outer cylinder 31. The bottom surface 31A has a hole (not shown) in the center. As shown in Fig. 4, the side portion 31B of the outer cylinder 31 is fixed to a connecting portion 37, and the connecting portion 37 is supported by the support machine 3 via a vehicle body fixing portion 39. Although not shown in the figure, the vehicle body fixing portion 39 is fixed to the vehicle body 9, so that the buffer mechanism 23 is supported by the support machine 3.

[0022] As shown in Fig. 4, the inner cylinder 33 opens to the slope machine 2, and a compression spring 35 is fixed to the bottom surface 33A of the other inner cylinder 33. The bottom surface 33A has a hole (not shown) in the center. As shown in Figs. 3 and 4, the buffer mechanism 23 includes the compression spring 35, the outer cylinder 31, and a metal rod 41 inserted through the axial center of the inner cylinder 33. The metal rod 41 is fixed to the bottom surface 33A by a fixture 43, and the metal rod 41 and the inner cylinder 33 slide together in response to the expansion and contraction of the compression spring 35.

[0023] 3, the other end of the metal rod 41 that is not fixed to the fixture 43 is rotatably fixed to a load cell case 45 via a pin 47. The load cell case 45 is provided with a load cell 49 that measures the tension of the support rope 25.

[0024] 3, the load meter case 45 is rotatably fixed to a wire socket 51 via a pin 47. The support rope 25 is wound around and fixed to the wire socket 51, and the wound support rope 25 is tied with a wire clip 53. In this way, the support rope 25 and the buffer mechanism 23 are connected to each other.

[0025] [1-2. Effect] The operation of the slope work device 1 configured as above will now be described. When working on the slope S, the slope machine 2 and the support machine 3 move forward or backward in a direction perpendicular to the plane of the drawing in Fig. 1. As shown by the imaginary lines in Fig. 1, the slope machine 2 works at positions on the slope S at different heights, such as the slope machine 2A and the slope machine 2B. This work is compaction when the slope machine 2 is a compaction roller, and is spreading and leveling the asphalt mixture when the slope machine 2 is an asphalt finisher.

[0026] The slope machine 2 receives tension from the support ropes 25 so as to balance the downward force in the inclination direction of the slope S. Therefore, the slope machine 2 can apply an even force to the contact surface with the slope S.

[0027] When the distance between the slope machine 2 and the support machine 3 is increased, that is, when moving from a high point to a low point on the slope S, the support rope 25 is paid out by the winch 15. This allows the slope machine 2 to move to a low point while maintaining tension in the support rope 25.

[0028] The moment the slope machine 2 moves toward a lower place and the distance between it and the support machine 3 increases, the tension in the support rope 25 increases. The increase in tension is alleviated by the winch 15 reeling out the support rope 25, but at this time the compression spring 35 of the buffer mechanism 23 contracts, so a sudden increase in tension can be suppressed.

[0029] On the other hand, when the distance between the slope machine 2 and the support machine 3 is reduced, that is, when moving from a low point on the slope S to a high point, the support rope 25 is wound up by the winch 15. This allows the slope machine 2 to move to a high point while maintaining tension in the support rope 25.

[0030] At the moment when the slope machine 2 moves toward higher ground and the distance between it and the support machine 3 increases, the tension in the support rope 25 decreases. The decrease in tension is alleviated by the winch 15 winding up the support rope 25, but at this time the compression spring 35 of the buffer mechanism 23 expands, so the sudden decrease in tension can be suppressed.

[0031] The buffer mechanism 23 has the effect of adjusting the distance between the slope machine 2 and the support machine 3 by expanding and contracting the compression spring 35.

[0032] Even if the compression spring 35 is subjected to a force exceeding its load capacity and breaks, the metal rod 41 is inserted into the buffer mechanism 23, so the slope machine 2 can remain supported by the support machine 3.

[0033] Since a third pulley 21 supported by the support machine 3 is provided between the second pulley 19 and the buffer mechanism 23, the direction of the tension applied to the buffer mechanism 23 can be kept constant even if the direction of the support rope 25 between the second pulley 19 and the third pulley 21 changes as the slope machine 2 moves.

[0034] [1-3. Effects] As described above, according to the present invention, the slope work device 1 comprises a slope machine 2 that propels itself up the slope S, and a support machine 3 that accompanies the slope machine 2 and supports the slope machine 2 via a support rope 25 that is wound up by a winch 15, one end of the support rope 25 being connected to the winch 15 and wound around a first pulley 17 on the support machine 3 side and a second pulley 19 on the slope machine 2 side, and the other end being connected to a spring-type buffer mechanism 23, which is supported by the support machine 3. This makes it possible to suppress sudden changes in tension of the support ropes 25, and allows the slope machine 2 traveling on the slope S to travel stably.

[0035] The spring-type buffer mechanism 23 also includes an outer cylinder 31, an inner cylinder 33 that slides inside the outer cylinder 31, and a compression spring 35 that connects the outer cylinder 31 and the inner cylinder 33 together. According to this, the compression spring 35 can suppress changes in tension of the support rope 25, and the outer tube 31 and the inner tube 33 can protect the compression spring.

[0036] In addition, the outer cylinder 31 is supported by the support machine 3 . According to this, the buffer mechanism 23 can be supported on the support machine 3, and by fixing the other end of the support rope 25, the tension of the support rope 25 can be adjusted.

[0037] The buffer mechanism 23 also includes a compression spring 35, an outer tube 31, and a metal rod 41 inserted through the axial center of the inner tube 33, and the metal rod 41 is fixed to the bottom surface 33A of the inner tube 33 by a fixing device 43, and the metal rod 41 and the inner tube 33 slide together in response to the expansion and contraction of the compression spring 35. According to this, even if the force of the compression spring 35 is not applied to the support rope 25, the support machine 3 can maintain the state of supporting the slope machine 2.

[0038] A third pulley 21 supported by the support machine 3 is provided between the second pulley 19 and the buffer mechanism 23 . This allows the attitude of the buffer mechanism 23 to be maintained.

[0039] [2. Second embodiment] 5 is a side view of a slope work device 1 according to another embodiment. The slope work device 1 according to the second embodiment comprises a slope machine 2 that self-propels on a slope S, and a support machine 103 that accompanies the slope machine 2 on a flat road G located below the slope S and supports the slope machine 2. The support machine 103 is a crane type.

[0040] The vehicle body 9 is equipped with a hoisting boom 105, and the hoisting boom 105 is supported on the vehicle body so as to be able to be freely raised and lowered by a hoisting winch 107 and a hoisting rope 109. The support machine 103 can adjust the inclination angle of the hoisting boom 105 via the hoisting winch 107 and the hoisting rope 109. The hoisting boom 105 has a jib 111 at its tip. The jib 111 has a first pulley 17 at one end.

[0041] The hoisting boom 105 includes two boom pulleys 113, 115. The vehicle body 9 includes a winch 15, a third pulley 21, and a spring-type buffer mechanism 23, similar to the first embodiment. The support rope 25 is wound around the winch 15, the boom pulleys 107 and 109 of the hoisting boom 105, the first pulley 17, the second pulley 19, and the buffer mechanism 23 in this order. The buffer mechanism 23 is fixed to the vehicle body 9.

[0042] The other configuration is similar to that of the first embodiment, and therefore the description will be omitted. The second embodiment provides the same functions and effects as the first embodiment. [Explanation of symbols]

[0043] 1 Slope work equipment 2 Slope cutting machine 3. 103 Support Machine 9. Body 15 Winch 17 1st pulley 19 Second pulley 21 Third pulley 23 Buffer mechanism 25 Support rope 31 Outer cylinder 33 Inner cylinder 35 Compression spring 41 Metal Rod 43 Fixtures 51 Wire Socket G flat road S slope

Claims

1. A slope cutting machine that moves on its own along the slope; A support machine that accompanies the slope machine and supports the slope machine via a support rope that is wound up by a winch; The support rope has one end connected to the winch, is wound around a first pulley on the support machine side and a second pulley on the slope machine side, and has the other end connected to a spring-type buffer mechanism; The buffer mechanism is supported by the support machine. Slope work equipment.

2. The spring type buffer mechanism includes an outer cylinder, an inner cylinder that slides inside the outer cylinder, and a compression spring that connects the outer cylinder and the inner cylinder. A slope working device according to claim 1.

3. The slope working device according to claim 2 , wherein the external cylinder is supported by the support machine.

4. the buffer mechanism includes a compression spring, an outer cylinder, and a metal rod inserted through an axial center of the inner cylinder, 4. The slope work device according to claim 2 or 3, wherein the metal rod is fixed to the bottom surface of the inner cylinder by a fixing device, and the metal rod and the inner cylinder slide together in response to the expansion and contraction of the compression spring.

5. The slope work apparatus according to claim 4 , further comprising a third pulley supported by the support machine between the second pulley and the buffer mechanism.

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