Slope work vehicle

Abstract

To provide a slope work vehicle capable of appropriately performing drilling work even on a steep slope and appropriately supporting long parts such as guide shells and rods.SOLUTION: A slope work vehicle comprises a work vehicle body, a traveling device provided on the work vehicle body, a winch provided on the work vehicle body, and a drilling device provided on the work vehicle body. The drilling device comprises a base portion provided to the work vehicle body so as to be able to turn via a first turning mechanism, an arm portion that is rotatable in the vertical direction on the base portion, and a drilling device main body which is rotatably provided at the tip of the arm portion via the second turning mechanism. The second turning mechanism is provided so as not to be coaxial with a turning shaft of the first turning mechanism, and supports an intermediate portion of the drilling device main body.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a slope working vehicle that moves along a slope and performs work such as drilling holes. [Background technology]

[0002] Conventionally, a slope work vehicle that is suspended by a winch wire and travels along slopes to perform work on slopes is known to be "a drilling device characterized by comprising a work vehicle body equipped with a work platform capable of traveling on slopes, a guide shell attached to the work platform of the work vehicle body via a rotating device, an inner rod attached to the guide shell so as to be able to move forward and backward and having a bit attached to its tip, an inner rod drive device attached so as to be able to rotate the inner rod, a casing rod that covers the outer periphery of the inner rod attached to the guide shell so as to be able to move forward and backward, a support device that supports the casing rod at a slower rotation than the rotation of the inner rod or supports it so that it cannot rotate, and an advancing / advancing device that moves the inner rod and casing rod forward and backward along the guide shell."

[0003] However, when using the above-mentioned drilling device, when drilling a hole of a certain length, it was necessary to support the vicinity of the tip of the guide shell so that the tip of the drilling device would not collide with the slope when the turning device was turned on the work platform of the work vehicle body to make the rod perpendicular to the slope. Because it was necessary to have such a configuration, the guide shell, rod, and other long objects were in a cantilevered state, and there was a risk that the end side that was not supported by the guide shell, rod, etc. would be deformed due to their own weight or the weight of the driving device, etc. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2012-62655 A Summary of the Invention [Problem to be solved by the invention]

[0005] In view of the above-mentioned conventional drawbacks, the present invention aims to provide a slope work vehicle that can properly perform drilling work even on steep slopes and can properly support long parts such as guide shells and rods. [Means for solving the problem]

[0006] In order to achieve the above object, the slope work vehicle described in claim 1 of the present invention is composed of a work vehicle body, a traveling device provided on the work vehicle body, a winch provided on the work vehicle body, and a drilling device provided on the work vehicle body, and the drilling device comprises a base section provided on the work vehicle body so as to be rotatable via a first swivel mechanism, an arm section provided on the base section so as to be rotatable in the vertical direction, and a drilling device body provided on the tip of the arm section so as to be rotatable via a second swivel mechanism, and the second swivel mechanism is provided so as not to be coaxial with the rotation axis of the first swivel mechanism, and supports an intermediate section of the drilling device body. The base portion is attached to the work vehicle body via an angle adjustment means, and the first and second turning mechanisms can turn eccentrically relative to each other while maintaining a substantially parallel state. It is characterized by:

[0007] The base portion of the slope working vehicle according to claim 2 is characterized in that a driver's seat for operating the traveling device and the drilling device is provided on the base portion.

[0008] The drilling device main body of the slope work vehicle described in claim 3 is characterized in that it is composed of a guide shell rotatably attached to the tip of the arm section, a drilling tool slidably attached to the guide shell, and a drive unit for driving the drilling tool. Effect of the Invention

[0009] As is clear from the above description, the present invention provides the following effects. (1) In each of the inventions described in claims 1 to 3, the arm portion supports the middle part of the main body of the hole-drilling device, in other words, the part excluding the end parts and the areas near both ends, preferably the middle part of the long rod-shaped guide shell, so that long parts such as the guide shell and rod can be properly supported without bending or deforming. (2) Since the device has a first rotation mechanism and a second rotation mechanism, and the arm portion is located toward the end portion rather than the center of the work vehicle body, by rotating the first rotation mechanism and the second rotation mechanism, the drilling device body can be rotated to prevent the drilling device body from protruding from the front of the work vehicle body. Therefore, when working on a slope, drilling work can be performed without the tip of the guide shell, etc. colliding with the slope. [Brief description of the drawings]

[0010] 1 to 6 are explanatory diagrams showing a first embodiment of the present invention. 7 to 9 are explanatory diagrams showing a second embodiment of the present invention. [Figure 1] FIG. 2 is a right side view of the slope working vehicle according to the first embodiment. [Diagram 2] FIG. 2 is a plan view of the slope working vehicle according to the first embodiment. [Diagram 3] FIG. 4 is an explanatory diagram of a state in which the first and second turning mechanisms are turned 180 degrees. [Figure 4] FIG. 13 is an explanatory diagram from a plan view when moving on a slope. [Diagram 5] An explanatory diagram of the preparation stage for drilling work on a slope. [Figure 6] An explanatory diagram for working on a slope. [Figure 7] FIG. 11 is a right side view of the slope working vehicle according to the second embodiment. [Figure 8] FIG. 11 is a plan view of a slope working vehicle according to a second embodiment. [Figure 9] FIG. 13 is an explanatory diagram of the state in which the spanner is extended. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The present invention will be described in detail below with reference to the embodiments for carrying out the invention 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.

[0012] In a first embodiment for carrying out the present invention shown in Figs. 1 to 6, reference numeral 1 denotes a slope working vehicle capable of performing drilling work mainly on a steep slope 2 of at least 40 degrees or more.

[0013] Specifically, as shown in Figures 1 and 2, the slope work vehicle 1 is composed of a work vehicle body 3, a traveling device 4 provided on the work vehicle body 3, a winch 5 provided on the work vehicle body 3, and a drilling device 6 provided on the work vehicle body 3.

[0014] The work vehicle body 3 is equipped with a traveling device 4, and the traveling device 4 has multiple tires 4 on each side, four on each side in this embodiment, for a total of eight tires 4. Note that caterpillars may be used as the traveling device 4 instead of tires 4. Of these tires 4, the front and rear four wheels (excluding the four wheels near the center) are provided so as to be rotatable in the vertical direction by means of cylinders 4a.

[0015] Left and right winches 5 and left and right wire fairleads 8 for guiding the wires 7 of the winches are provided on the left and right sides of the work vehicle body 3, respectively.

[0016] The wire fairlead 8 is provided at the front of the work vehicle body 3, and the wire 7 introduced from the rear side of the wire fairlead 8 is guided from a wire guide port to the front side of the work vehicle body 3. By fixing the wire 7 guided from this wire guide port to the main anchor 9 at the top of the slope 2 and winding it up with the winch 5, the vehicle can travel not only on flat surfaces and gentle slopes, but also on steep slopes 2.

[0017] In this invention, a steep-angled slope is assumed to be one with an inclination of 40 degrees or more. However, 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 7 connected to two winches 5, and drilling work can be performed.

[0018] The hole-drilling device 6 is composed of a base section 11 which is arranged at approximately the center of the work vehicle body 3 so as to be rotatable in an approximately horizontal direction via a first rotation mechanism 10, an arm section 12 which is arranged on the outer periphery of the base section 11 so as to be rotatable in an up-down direction, and a hole-drilling device main body 14 which is arranged at the tip of the arm section 12 so as to be rotatable in an approximately horizontal direction via a second rotation mechanism 13.

[0019] The rotation axis r1 of the first rotation mechanism 10 and the rotation axis r2 of the second rotation mechanism 13 are not coaxial, that is, when viewed in a plane, the rotation axis r1 of the first rotation mechanism 10 and the rotation axis r2 of the second rotation mechanism 13 are eccentric in the front-to-rear direction.

[0020] The base portion 11 is provided with a driver's seat 15 for operating the traveling device 4 and the drilling device main body 14, and this base portion 11 is attached to the work vehicle body via an angle adjustment means 16 that can hold the driver's seat 15 approximately horizontal even on the slope 2.

[0021] The angle adjustment means 16 is composed of a base plate 19, one end of which is attached to a support base 17 of the work vehicle body 3 via a pivot pin 18, and the other end of which is attached so as to be rotatable in the vertical direction, and a hydraulic cylinder 20 which is provided on the rear side of the base plate 19 and which rotates the base plate 19 in the vertical direction with the pivot pin 18 as a fulcrum.

[0022] The first swivel mechanism 10 can be rotated in a substantially horizontal direction when the first swivel mechanism 10 is on flat ground (normal state), and the second swivel mechanism 13 can be rotated in a substantially horizontal direction when the arm unit 12 is rotated upward (when the guide shell 21 of the drilling device body 14 is substantially horizontal). When the arm unit 12 is rotated upward, the first swivel mechanism 10 and the second swivel mechanism 13 can rotate with respect to each other while maintaining a substantially parallel state. In such a state in which they can be rotated substantially horizontally with respect to each other, the first swivel mechanism 10 and the second swivel mechanism 13 are arranged to have a gap in the front-rear direction so that the rotation axis r1 of the first swivel mechanism 10 and the rotation axis r2 of the second swivel mechanism 13 are eccentric in the front-rear direction.

[0023] The hole-drilling device body 14 is composed of a long rod-shaped guide shell 21 rotatably mounted on the tip of the arm section 12 via a second swivel mechanism 13, a long rod-shaped hole-drilling tool 22 slidably mounted on the guide shell 21 in the longitudinal direction of the guide shell 21, and a drive device 23 for driving the hole-drilling tool 22. Here, the "middle part of the hole-drilling device body 14" is based on the long rod-shaped guide shell 21 having both ends in the front-rear direction as shown in FIG. 1, for example, but the hole-drilling device body 14 of this embodiment is supported on the arm section 12 at its middle part (including the vicinity of the middle part within the scope of the invention, and not including, for example, the end or the vicinity of the end) via the second swivel mechanism 13. By supporting such a part, it is possible to prevent the load from concentrating on the end of the hole-drilling device body 14 compared to the case where the vicinity of one end is supported, and it is possible to prevent the guide shell 21 and the hole-drilling tool 22 from bending and deforming.

[0024] In this embodiment, the arm portion 12 is provided on the outer periphery of the base portion 11 provided slightly toward the front side from the approximate center of the work vehicle body 3, so that the rotation axis r1 of the first swivel mechanism 10 and the rotation axis r2 of the second swivel mechanism 13 are provided in an eccentric state in a plan view as described above. In this way, by providing the first swivel mechanism 10 and the second swivel mechanism 13, even if the arm portion 12 supports the middle portion (for example, the center portion or its vicinity) of the long rod-shaped guide shell 21 of the hole drilling device body 14, the first swivel mechanism 10 and the second swivel mechanism 13 can be turned to prevent the hole drilling device body 14 from protruding from the front of the work vehicle body 3 as shown in FIG. 3 (the hole drilling device body 14 can be retracted from the front of the work vehicle body 3), so that the guide shell 21 and the like can be prevented from colliding with the slope 2.

[0025] The overall length of the hole-drilling device body 14 is formed to a dimension that allows hole-drilling work to be performed by rotating the first rotating mechanism 10 and the second rotating mechanism 13.

[0026] In the above configuration, 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 7 of the left and right winches 5 are fixed to the main anchors 9 at the top of the slope. At this time, it is desirable to fix the wires 7 so that they form an inverted V shape in a plan view, as shown in Figure 4. Once the wires 7 are fixed to the main anchors 9, the winches 5 are wound up and the traveling device 4 is operated to move the slope work vehicle 1 forward.

[0027] Incidentally, it is desirable to adjust the angle of the cockpit 15 by the angle adjustment means 16 so that the cockpit 15 is approximately horizontal on the slope 2. When the slope work vehicle 1 arrives at the work position, the hole drilling tool 22 of the hole drilling device main body 14 performs hole drilling work at a predetermined position on the slope 2.

[0028] At this time, as shown in Figure 4, the first rotation mechanism 10 is rotated to rotate the cockpit 15 so that it faces rearward, and the second rotation mechanism 13 is used to position the tip of the drilling tool 22 of the hole-drilling device main body 14 directly facing the slope 2, so that a hole can be drilled perpendicular to the slope 2 without the guide shell 21 or the drilling tool 22 colliding with the slope 2. Next, as shown in FIG. 5, while the first turning mechanism 10 and the second turning mechanism 13 are turned, the driving device 23 is driven to drill a hole with the drilling tool 22.

[0029] [Different modes for carrying out the invention] Next, a different embodiment of the present invention will be described with reference to Figures 6 to 8. In describing 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.

[0030] The second form for carrying out the present invention shown in Figures 6 to 8 mainly differs from the first form for carrying out the present invention in that caterpillars are used as the left and right traveling devices 4A, a blade 24 is provided at the rear of the work vehicle body 3, and a spanner 25 is further provided which can adjust the distance between the traveling devices 4A; with this type of slope work vehicle 1A, the same effects as those of the first form for carrying out the present invention can be obtained.

[0031] In this embodiment, the traveling unit 4A is displaced in the left-right direction by the spanner 25 provided on the traveling unit 4A. When working on the slope 2, the spanner 25 is extended to increase the distance between the left and right traveling units 4A, allowing work to be performed stably.

[0032] In this embodiment, caterpillar tracks are used for the traveling device 4A, but tires may be used as in the first embodiment, and a spanner 25 may be provided so that the distance between the left and right tires can be adjusted. In the embodiment of the present invention, a drilling device having a cockpit has been described, but it may also be a drilling device in which an arm portion is provided on the outer periphery of a base portion that does not have a cockpit. [Industrial Applicability]

[0033] The present invention is utilized in the industry of manufacturing slope work vehicles which are suspended by a winch wire and used for drilling work on steep slopes such as slopes. [Explanation of symbols]

[0034] 1, 1A: Slope work vehicle, 2: Slope, 3: work vehicle body, 4, 4A: running gear, 5: winch, 6: drilling equipment, 7: Wire, 8: Wire fairlead, 9: main anchor; 10: first swivel mechanism; 11: base portion, 12: arm portion, 13: second rotating mechanism; 14: drilling device body; 15: cockpit; 16: angle adjustment means; 17: support base rotation mechanism; 18: pivot pin; 19: base plate; 20: hydraulic cylinder; 21: guide shell; 22: drilling tool; 23: drive mechanism; 24: blade; 25: Spanner.

Claims

1. The work vehicle is composed of a work vehicle body, a traveling device provided on the work vehicle body, a winch provided on the work vehicle body, and a drilling device provided on the work vehicle body, The hole-drilling device comprises a base section rotatably mounted on the work vehicle body via a first swivel mechanism, an arm section rotatably mounted on the base section in an up-down direction, and a hole-drilling device body rotatably mounted on the tip of the arm section via a second swivel mechanism, wherein the second swivel mechanism is arranged so as not to be coaxial with the rotation axis of the first swivel mechanism and supports the middle part of the hole-drilling device body, and the base section is attached to the work vehicle body via an angle adjustment means, and the first swivel mechanism and the second swivel mechanism can rotate eccentrically relative to each other while maintaining an approximately parallel state.

2. 2. The slope working vehicle according to claim 1, wherein a driver's seat for operating the traveling device and the drilling device is provided on the base portion.

3. A slope work vehicle as described in either claim 1 or claim 2, characterized in that the drilling device main body is composed of a guide shell rotatably attached to the tip of the arm portion via a second rotation mechanism, a drilling tool slidably attached to the guide shell, and a drive unit for driving the drilling tool.

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