JP7638148B2 - Slope work vehicle - Google Patents

Description

The present invention relates to a slope work vehicle that moves along slopes and performs work such as drilling holes.

A conventional slope work vehicle that travels along slopes while being pulled by a winch wire and performs work on slopes is known to be "a slope work vehicle (claim 2) that is composed of a work vehicle body 3, tire mounting parts 4 that are provided on the left and right sides of the work vehicle body and can expand and contract in the left and right direction, tires 7 provided at the front and rear parts of the left and right tire mounting parts, winches 8 attached to the left and right tire mounting parts, wire fairleads 34 provided at the front parts of the left and right tire mounting parts and guide the winch wires, an arm 9 provided on the work vehicle body so as to be rotatable in the left and right direction, a guide shell mounting part 11 provided on the arm so as to be rotatable in the up and down direction, a guide shell 12 fixed to the guide shell mounting part, and a hole-boring device 13 provided on the guide shell so as to be movable in the front and rear directions."

The tire mounting section 4 is composed of a tire mounting section body 17 attached to the front and rear left and right parts of the work vehicle body 3 via a hydraulic cylinder 16 as a tire mounting section extension mechanism 5 that extends and retracts in the left and right direction, and a cylinder 6 that can extend and retract in the up and down direction, one end of which is attached to the front and rear of the tire mounting section body 17 and the other end of which has a tire 7 attached, and the tire mounting section bodies 17, 17 can extend and retract in the left and right direction by the hydraulic cylinder 16 (see, for example, paragraph 0010). Preferably, a winch 8 is provided at the rear part of the left and right tire mounting section bodies 17 of the tire mounting section 4, and a wire fairlead (guiding member) 34 is provided at the front part of the left and right tire mounting section bodies 17 (the symbols are those in Patent Document 1).

However, while the above-configured slope work vehicle is optimal for moving on slope frames installed on flat or inclined surfaces, because not only the tires 7 but also the wire fairleads 34 are attached to the tire mounting section 4, it is not possible to adjust the distance between the left and right tires and the distance between the left and right wire fairleads individually.

Patent No. 6773266

In view of the above-mentioned conventional shortcomings, the present invention aims to provide a slope work vehicle that can work efficiently on slopes without damaging the winch wire that tows the slope work vehicle.

In order to achieve the above object, the slope work vehicle described in claim 1 of the present invention is a slope work vehicle that can travel on a slope to perform work, and is composed of a work vehicle body, left and right traveling devices provided on the work vehicle body, left and right winches provided on the work vehicle body, left and right wire fairleads that are provided on the work vehicle body and guide the wire from the front of the work vehicle body to the front side, respectively, a hydraulic excavator provided rotatably on the work vehicle body, a traveling device spanner that displaces the distance between the left and right traveling devices in the left and right directions, respectively, and a wire fairlead spanner that displaces the distance between the left and right wire fairleads in the left and right directions , and is characterized in that the left and right sides of the work vehicle body are provided with telescopic sections that telescope in the left and right directions, the winch and wire fairlead are provided on the telescopic sections, the traveling device spanner displaces the traveling devices in the left and right direction, and the wire fairlead spanner displaces the telescopic sections in the left and right direction .

The hydraulic excavator of the slope work vehicle according to claim 2 is characterized in that it is attached to the work vehicle body via an angle adjustment means that can make the hydraulic excavator approximately horizontal even on a slope.

As is clear from the above description, the present invention provides the following advantages.
(1) In the invention described in claim 1 , the spanner for the traveling gear and the spanner for the wire fairlead are provided separately, so that the distance between the left and right traveling gears and the distance between the left and right wire fairleads can be adjusted separately.
(2) In the invention described in claim 2 , the same effect as that of (1) above can be obtained, and work can be performed on a slope while keeping the cockpit horizontal.

1 to 5 are explanatory diagrams showing a first embodiment of the present invention.
6 to 8 are explanatory diagrams showing a second embodiment of the present invention.
FIG. 2 is a side view of the slope working vehicle of the first embodiment. Plan view of a slope work vehicle. FIG. 13 is an explanatory diagram of the state in which the spanner is extended. Plan view when working on a slope. Side view when working on a slope. FIG. 11 is a side view of a slope working vehicle according to a second embodiment. Plan view of a slope work vehicle. FIG. 13 is an explanatory diagram of the state in which the spanner is extended.

The present invention will be described in detail below with reference to the embodiments shown in the drawings. Note that the left-right direction refers to the left-right direction in FIG. 2 (plan view), the front-rear direction refers to the left-right direction in FIG. 1, and the up-down direction refers to the up-down direction in FIG. 1.

In the first embodiment of the present invention shown in Figures 1 to 5, 1 is a slope work vehicle that can mainly work on steep slopes 2 with an angle of at least 40 degrees.

Specifically, as shown in Figures 1 and 2, the slope work vehicle 1 is composed of a work vehicle body 3, left and right traveling devices 4 provided on the work vehicle body 3, left and right winches 5 provided on the work vehicle body 3, left and right wire fairleads 7 provided on the work vehicle body 3 and guiding the wires 6 of the left and right winches 5, respectively, a hydraulic excavator 8 rotatably provided on the work vehicle body 3, a traveling device spanner 9 that displaces the relative distance between the left and right traveling devices 4, 4 in the left and right directions, and a wire fairlead spanner 10 that displaces the distance between the left and right wire fairleads in the left and right directions, respectively (see Figures 2 and 3, for example).

The work vehicle body 3 is equipped with a running device 4 at its bottom, and in this embodiment, the running device 4 is made up of caterpillar tracks 4 on the left and right. Note that tires may be used as the running device 4 instead of caterpillar tracks 4.

The traveling gear 4 is displaced left and right by a traveling gear spanner 9 provided on the traveling gear 4. When working with the hydraulic excavator 8, the traveling gear spanner 9 is extended to increase the distance between the left and right traveling gears 4, allowing work to be performed stably.

This traveling gear spanner 9 uses a hydraulic cylinder, and the traveling gear 4 is connected to the operating rod of this hydraulic cylinder. When the operating rod extends or retracts, the traveling gear 4 is displaced in the left-right direction.

The left and right sides of the work vehicle body 3 are each provided with an extension section 11 that extends and retracts in the left and right direction, and the left and right winches 5 and the left and right wire fairleads 7 are provided on these left and right extension sections 11. The wire guide port 7a of the wire fairlead 7 is provided at the front of the work vehicle body 3, and the wire 6 introduced from the rear side of the wire fairlead 7 is guided from the wire guide port 7a to the front side of the work vehicle body 3. By fixing the wire 6 guided from this wire guide port 7a to the main anchor 12 at the top of the slope 2 and winding up the winch 5, the vehicle can travel not only on flat surfaces and gentle slopes, but also on steep slopes 2.

In this invention, a steep slope is assumed to be a slope with an inclination of 40 degrees or more, but even if the slope 2 is, for example, a nearly vertical wall surface, the work vehicle body 3 can be positioned at any position on the slope 2 by supporting it with wires 6 connected to two winches 5, and work can be carried out.

In this embodiment, the winch 5 is also provided in the telescopic section 11 on the rear side of the work vehicle body 3, but the winch 5 may be provided in any part of the work vehicle body 3 except the telescopic section 11.
This extension section 11 is displaced left and right by a wire fairlead spanner 10 provided on the work vehicle body 3, displacing the left and right winches 5 and the left and right wire fairleads 7 left and right.
The wire fairlead spanner 10 has the same configuration as the traveling gear spanner 9.

The wire fairlead 7 that guides the wire 6 of the winch 5 is provided on the telescopic section 11, so by extending the telescopic section 11 during work and lengthening the distance between the wire fairleads 7, the distance between the left and right wires 6 also increases. This means that even when the hydraulic excavator 8 rotates to work, it does not interfere with the wire 6, allowing work to be done safely and efficiently.

In this way, the traveling gear spanner 9 on the traveling gear 4 and the wire fairlead spanner 10 on the work vehicle body 3 are installed separately and can be operated separately, so there is no problem with the normal vehicle width (the distance between the left and right wires 6 is in the normal state) and when you want to work stably, you can work efficiently by extending only the traveling gear spanner 9.

In addition, since the telescopic section 11 can be expanded and contracted separately using the wire fairlead spanner 10, the length of the left and right wires 6 on the slope 2 can be adjusted and the telescopic section 11 can be expanded and contracted to move left and right.

The hydraulic excavator 8 is mounted on the upper part of the work vehicle body 3, and in this embodiment, is mounted on the work vehicle body via an angle adjustment means 13 that can make the hydraulic excavator 8 approximately horizontal even on a slope. The angle adjustment means 13 is composed of a base plate 16, one end of which is attached to a support base 14 of the work vehicle body 3 via a pivot pin 15, and the other end of which is attached so as to be rotatable in the vertical direction, and a hydraulic cylinder 24 and a pantograph 25 that are provided on the rear side of the base plate 16 and that rotate the base plate 16 in the vertical direction around the pivot pin 15 as a fulcrum.

The hydraulic excavator 8 is equipped with an operator's seat 18 that is mounted on the base plate 16 and can be rotated in a substantially horizontal direction via a rotating mechanism 17, a drive arm 19 attached to the front end of the operator's seat 18, and a bucket 20, breaker 20, etc., as a work attachment 20 that is detachably attached to the tip of the drive arm 19.

The traveling gear 4, winch 5, hydraulic excavator 8, traveling gear spanner 9, and wire fairlead spanner 10 are each driven by a hydraulic pump 21.

The engine 22 for operating this hydraulic pump 21 is rotatably mounted at the rear of the work vehicle body 3. By mounting the engine 22 in this manner, the engine 22 can be kept substantially horizontal at all times by gravity, even when moving along the slope 2, and seizure of the engine 22 can be prevented.

When working on the slope 2, the slope work vehicle 1 is positioned at the bottom of the slope 2, and the tips of the wires 6 of the left and right winches 5 are fixed to the main anchors 12 at the top of the slope. At this time, it is desirable to fix the wires 6 so that they form an inverted V shape in a plan view, as shown in Figure 4. Once the wires 6 are fixed to the main anchors 12, the winches 5 are wound up and the traveling device 4 is operated to move the slope work vehicle 1 forward.

When using the travel gear spanner 9 to extend or retract the distance between the travel gears 4, the work vehicle body 3 is lifted using the bucket 20 of the hydraulic excavator 8 and the blade 23 provided at the rear of the work vehicle body 3, and the travel gear spanner 9 is extended or retracted to adjust the distance between the left and right travel gears 4.

When the slope work vehicle 1 arrives at the work position, work is performed on the slope using the hydraulic excavator 8. At this time, the wire fairlead spanner 10 displaces the telescopic section 11 in the left-right direction to lengthen the distance between the wire fairleads 7, allowing work to be performed without damaging the wire 6 near the guide port 7a of the wire fairlead 7.

In this way, in the present invention, the spanner 9 can be operated near the slope 2 where the work is to be performed, and the length between the left and right traveling devices 4, the wire fairlead 7, and the winch 5 can be extended. Therefore, the slope work vehicle 1 can be transported in a compact state, and when in use, work can be performed safely and efficiently.

[Different modes for carrying out the invention]
Next, a description will be given of a different embodiment of the present invention shown in Figures 6 to 8. In the description of this different embodiment, the same components as those in the first embodiment are designated by the same reference numerals, and duplicated descriptions will be omitted.

The second embodiment of the present invention shown in Figures 6 to 8 differs from the first embodiment of the present invention mainly in that the winch 5 is provided on the vehicle body 3, and only the wire fairlead 7 is provided on the telescopic section 11. Even with this type of slope work vehicle 1A, the same effects as the first embodiment of the present invention can be obtained.

The present invention is used in the industry that manufactures slope work vehicles that are suspended by a winch wire and used to perform various tasks on steep slopes such as slopes.

1, 1A: Slope work vehicle, 2: Slope,
3: work vehicle body, 4: running gear,
5: winch, 6: wire,
7: Wire fairlead, 8: Hydraulic excavator,
9: Travel gear spanner,
10: Spanner for wire fairleads,
11: expansion section; 12: main anchor;
13: angle adjustment means, 14: support stand,
15: pivot pin; 16: base plate;
17: turning mechanism, 18: cockpit,
19: drive arm; 20: work attachment;
21: hydraulic pump, 22: engine,
23: blade; 24: hydraulic cylinder;
25: Pantograph.

Claims (2)

A slope work vehicle that can travel on a slope and perform work,
a hydraulic excavator rotatably mounted on the work vehicle body, a traveling gear spanner that displaces the distance between the left and right traveling gears in the left and right directions, respectively, and a wire fairlead spanner that displaces the distance between the left and right wire fairleads in the left and right directions, respectively, and the left and right sides of the work vehicle body are provided with an extension section that extends and contracts in the left and right directions, the winch and the wire fairlead are mounted on the extension section , the traveling gear spanner displaces the traveling gear in the left and right directions, and the wire fairlead spanner displaces the extension section in the left and right directions. A slope work vehicle comprising: a work vehicle body, left and right traveling gear provided on the work vehicle body, left and right winches provided on the work vehicle body, left and right wire fairleads provided on the work vehicle body 2. The slope working vehicle according to claim 1 , wherein the hydraulic excavator is attached to the vehicle body via an angle adjustment means that enables the hydraulic excavator to be approximately horizontal even on a slope.

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