Rock drilling-splitting device

Abstract

To provide a rock drilling-splitting device capable of efficiently destroying a target to be destroyed.SOLUTION: A rock drilling-splitting device 1000 is of an attachment type capable of being attached to and detached from an arm 3100 of a work vehicle 3000. The rock drilling-splitting device 1000 includes a first post 10, a rotation mechanism 20, a second post 50, a drill 70, and a rock splitting unit 140. The rotation mechanism 20 rotates the first post 10 on the arm 3100. The second post 50 extends non-parallel to the first post 10. The drill 70 is placed on the second post 50 and drills a hole 2000a in a target to be destroyed 2000. The rock splitting unit 140 is placed onto the second post 50 at the opposite side of the drill 70 with respect to the first post 10. The rock splitting unit 140 includes a rock splitting machine 141 that pressurizes and destroys the target to be destroyed 2000.SELECTED DRAWING: Figure 2A

Description

Technical Field

[0001] The present invention relates to a drilling and rock-breaking device.

Background Art

[0002] Conventionally, as a method for destroying an object to be destroyed such as a rock mass or a concrete structure, first, a hole is drilled in the object to be destroyed by a drilling machine, and then the blades of a rock-breaking machine are inserted into the hole, and the object to be destroyed is destroyed by applying a force to the object to be destroyed by the blades of the rock-breaking machine. Such a drilling machine is disclosed in, for example, Patent Document 1. Further, such a rock-breaking machine is disclosed in, for example, Patent Document 2.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] Conventionally, a drilling machine and a rock-breaking machine are separate devices, and the drilling machine and the rock-breaking machine are each mounted on a separate hydraulic excavator for use. Therefore, after a hole is drilled in the object to be destroyed by the drilling machine, the hydraulic excavator on which the drilling machine is mounted is moved away from the position of the hole, and then the hydraulic excavator on which the rock-breaking machine is mounted is moved close to the hole to destroy the object to be destroyed by the rock-breaking machine. However, such a method is time-consuming.

[0005] An object of the present invention is to provide a drilling and rock-breaking device capable of efficiently destroying an object to be destroyed.

Means for Solving the Problems

[0006] The present application provides an invention in the following aspects. (Item 1) A drilling and rock-breaking device for breaking an object to be broken, which is an attachment type detachable from the arm of a work vehicle, a first support column, a rotation mechanism for rotating the first support column with respect to the arm, a second support column extending non-parallel to the first support column, a drill disposed on the second support column for making a hole in the object to be broken, a rock-breaking device disposed on the second support column at a position opposite to the drill with respect to the first support column, the rock-breaking device including a rock breaker for applying pressure to the object to be broken to break it, and a drilling and rock-breaking device comprising the same.

[0007] (Item 2) further comprising moving means for moving the drill closer to and away from the object to be broken, the drilling and rock-breaking device according to Item 1.

[0008] (Item 3) further comprising a holding member, wherein the holding member is attached to the second support column, the drill is held by the holding member, the moving means is a hydraulic cylinder, the hydraulic cylinder includes a cylinder tube and a piston rod, one of the cylinder tube and the piston rod is coupled to the holding member, the other of the cylinder tube and the piston rod is coupled to the drill, the drilling and rock-breaking device according to Item 2.

[0009] (Item 4) further comprising moving means for moving the drill along the axial direction of the second support column, the drilling and rock-breaking device according to Item 1.

[0010] (Item 5) further comprising a holding member, the holding member is attached to the second support column and is movable in the axial direction of the second support column, the drilling machine is held by the holding member, the moving means is a hydraulic cylinder, the hydraulic cylinder includes a cylinder tube and a piston rod, one of the cylinder tube and the piston rod is coupled to the second support column, the other of the cylinder tube and the piston rod is coupled to the holding member, the drilling and rock-breaking device according to item 4.

[0011] (Item 6) the second support column is rotatably coupled to the first support column, further comprising rotating means for rotating the second support column relative to the first support column, the drilling and rock-breaking device according to item 1.

[0012] (Item 7) the rotating means is a hydraulic cylinder, the hydraulic cylinder includes a cylinder tube and a piston rod, one of the cylinder tube and the piston rod is coupled to the first support column, the other of the cylinder tube and the piston rod is coupled to the second support column at a position axially displaced from the coupling position of one of the cylinder tube and the piston rod and the first support column in the axial direction of the second support column, the drilling and rock-breaking device according to item 6.

[0013] (Item 8) the rotation mechanism includes a motor, a drive gear attached to the motor shaft of the motor, a driven gear that meshes with the drive gear and is fixed to the first support column, the drilling and rock-breaking device according to item 1.

[0014] (Item 9) Further provided with a support mechanism for supporting the lower part of the first support column, The support mechanism is, A seat having a base and a shaft, An elastic member attached to the shaft, And, The first support column is supported in a floating state from the base by the elastic member. The drilling and rock cutting device according to Item 1.

[0015] (Item 10) The rock cutting device further includes a motor for rotating the rock cutter. The drilling and rock cutting device according to Item 1.

[0016] (Item 11) The rock cutting device further includes a swing mechanism for supporting the rock cutter so as to be swingable with respect to the arm. The drilling and rock cutting device according to Item 1.

[0017] (Item 12) The rock cutting device further includes a buffer mechanism for absorbing the load applied to the rock cutter. The drilling and rock cutting device according to Item 1.

[0018] (Item 13) The rock cutting device is, A first swing mechanism for supporting the rock cutter so as to be swingable with respect to the arm, A second swing mechanism for supporting the rock cutter so as to be swingable with respect to the arm, A buffer mechanism disposed between the first swing mechanism and the second swing mechanism for absorbing the load applied to the rock cutter, And further provided with the drilling and rock cutting device according to Item 1.

[0019] (Item 14) The rock cutting device further includes moving means for moving the rock cutting device closer to and away from the object to be destroyed. The rock drilling and cutting device according to item 1.

[0020] (Item 15) A guide support, A holding member held by the guide support, further comprising, The rock cutting device is held by the holding member, The moving means is a hydraulic cylinder, The hydraulic cylinder includes a cylinder tube and a piston rod, One of the cylinder tube and the piston rod is coupled to the guide support, The other of the cylinder tube and the piston rod is coupled to the holding member. The rock drilling and cutting device according to item 14.

[0021] (Item 16) further comprising moving means for moving the rock cutting device along the axial direction of the second support, The rock drilling and cutting device according to item 1.

[0022] (Item 17) A guide support, A holding member held by the guide support, further comprising, The rock cutting device is held by the holding member, The guide support is movable in the axial direction of the second support, The moving means is a hydraulic cylinder, The hydraulic cylinder includes a cylinder tube and a piston rod, One of the cylinder tube and the piston rod is coupled to the second support, The other of the cylinder tube and the piston rod is coupled to the guide support. The rock drilling and cutting device according to item 16.

[0023] (Item 18) The rock cutting machine further comprises a grease supply device for automatically supplying grease to the rock cutting machine. The drilling and rock cutting device according to claim 1.

[0024] (Claim 19) The rock cutting machine is provided with a pair of blades. The drilling and rock cutting device further comprises a clamping mechanism for clamping the pair of blades. The drilling and rock cutting device according to claim 1.

Advantages of the Invention

[0025] The drilling and rock cutting device of the present invention comprises both a drill and a rock cutting machine, and the drill and the rock cutting machine rotate around the first support column as the first support column rotates. Therefore, after making a hole in the object to be destroyed with the drill, by rotating the first support column, the rock cutting machine can be moved to the position of the hole, and the object to be destroyed can be destroyed by the rock cutting machine. Thereby, the object to be destroyed can be efficiently destroyed.

Brief Description of the Drawings

[0026]

Figure 1

Figure 2A

Figure 2B

Figure 2C

Figure 2D

Figure 3

Figure 4

Figure 5A

Figure 5B

Figure 6A

Figure 6B

Figure 6C

Figure 7

Figure 8

Figure 9A

Figure 9B

Figure 10A

Figure 10B

Embodiments for Carrying Out the Invention

[0027] The drilling and rock cutting device 1000 of the present invention will be described with reference to the drawings.

[0028] <1. Outline of the Drilling and Rock Cutting Device> The drilling and rock cutting device 1000 is a device for destroying a destruction object 2000 such as a rock mass or concrete. The drilling and rock cutting device 1000 is an attachment type that can be detachably attached to the arm 3100 of the work vehicle 3000. The work vehicle 3000 is, for example, a hydraulic excavator.

[0029] As shown in FIG. 1, the drilling and rock cutting device 1000 includes a drill 70 and a rock cutter 141. When destroying the destruction object 2000, first, the drill 70 makes a hole 2000a in the destruction object 2000. Next, a pair of blades 1412a, 1412b (see FIG. 6B) of the rock cutter 141 are inserted into the hole 2000a, and pressure is applied to the wall surface of the hole 2000a by the pair of blades 1412a, 1412b to generate cracks in the destruction object 2000 and destroy the destruction object 2000.

[0030] Hereinafter, for convenience of explanation, the vertical direction in FIG. 1 will be regarded as the vertical direction (or longitudinal direction) of the drilling and rock splitting device 1000, and the horizontal direction in FIG. 1 will be regarded as the horizontal direction (or lateral direction) of the drilling and rock splitting device 1000 for explanation. The vertical direction is parallel to the vertical direction. When there are a plurality of identical components, in order to make the drawing easy to view, only some of the plurality of identical components may be labeled with reference numerals.

[0031] As shown in FIGS. 2A to 2D, the drilling and rock splitting device 1000 includes a first support column 10, a rotation mechanism 20, a mounting bracket 30, a support mechanism 40, a second support column 50, a rotation support mechanism 60, a drilling machine 70, a first holding member 80, a first moving means 90, a second moving means 100, a rotating means 110, a guide support column 120, a second holding member 130, a rock splitting device 140, a grease supply device 150, a third moving means 160, a clamping mechanism 170, a fourth moving means 180, and a control box 190. FIGS. 2A to 2D show a state in which the axial direction of the first support column 10 is parallel to the vertical direction, the axial direction of the second support column 50 is parallel to the horizontal direction, and the axial direction of the first support column 10 and the axial direction of the second support column 50 are orthogonal to each other.

[0032] The rotation mechanism 20 is disposed at the upper part of the first support column 10. The mounting bracket 30 is disposed at the upper part of the rotation mechanism 20. The mounting bracket 30 is fixed to the arm 3100. The first support column 10 and the rotation mechanism 20 are coupled to the arm 3100 via the mounting bracket 30. The support mechanism 40 is disposed at the lower part of the first support column 10. The first support column 10 is installed on the object to be destroyed 2000 via the support mechanism 40. The control box 190 is attached to the first support column 10. Hydraulic control equipment is accommodated in the control box 190. The hydraulic control equipment controls the hydraulic pressure supplied to the rotation mechanism 20, the drilling machine 70, the first moving means 90, the second moving means 100, the rotating means 110, the rock splitting device 140, the third moving means 160, the clamping mechanism 170, and the fourth moving means 180. The control equipment includes valves such as a pressure regulating valve, a flow regulating valve, and a direction switching valve. The hydraulic pressure to the hydraulic control equipment can be supplied from the work vehicle 3000.

[0033] <1-1. Rotating Mechanism> The rotating mechanism 20 rotates the first support column 10 around the central axis of the first support column 10 with respect to the arm 3100, the mounting bracket 30, and the support mechanism 40. That is, the rotating mechanism 20 rotates the first support column 10. When the first support column 10 rotates around its central axis, the second support column 50, the drilling machine 70, and the rock splitting device 140 swing around the first support column 10.

[0034] As shown in FIGS. 2A to 2D, the rotating mechanism 20 includes a motor 21, a driving gear 22, and a driven gear 23. The motor 21 is attached to the mounting bracket 30. The motor 21 is preferably a hydraulic motor. The hydraulic pressure to the hydraulic motor can be supplied from the work vehicle 3000 via a hydraulic control device. The driving gear 22 is attached to the motor shaft of the motor 21. The driven gear 23 meshes with the driving gear 22. Also, the driven gear 23 is fixed to the upper end of the first support column 10. By operating the motor 21, the driving gear 22 rotates. When the driving gear 22 rotates, the driven gear 23 and the first support column 10 coupled to the driven gear 23 also rotate. The first support column 10 can rotate 360 degrees around the central axis of the first support column 10 by the rotating mechanism 20. Note that the motor 21 can rotate forward and backward, and thus the first support column 10 can rotate either clockwise or counterclockwise. In FIG. 1, the rotation direction of the first support column 10 is schematically shown by an arrow.

[0035] <1-2. Support Mechanism> The support mechanism 40 supports the lower end of the first support column 10. As shown in FIGS. 2A to 2D, the support mechanism 40 includes a seat 41 and an elastic member 42. The seat 41 includes a base 411 and a shaft 412 extending upward from the base 411. The base 411 is a flat plate. The back surface of the base 411 contacts the object to be destroyed 2000. The back surface of the base 411 preferably has a plurality of protrusions 411a. By the plurality of protrusions 411a biting into the object to be destroyed 2000, the base 411 becomes less likely to slip relative to the object to be destroyed 2000. The elastic member 42 is, for example, a coil spring. The shaft 412 is inserted into the elastic member 42. The shaft 412 serves as a rotation axis when the first support column 10 rotates around its central axis. The first support column 10 is supported by the elastic member 42 in a floating state from the upper surface of the base 411.

[0036] <1-3. Second support column and rotational support mechanism> The second support column 50 extends across the first support column 10, that is, the second support column 50 extends out from the first support column 10 in both the left and right directions. The second support column 50 is rotatably attached to the first support column 10 via a rotational support mechanism 60. The rotational support mechanism 60 includes a shaft, a bearing, and the like.

[0037] <1-4. Drilling machine and first holding member> The drilling machine 70 includes a drill or the like for opening a hole 2000a. A known drilling machine can be used for the drilling machine 70. For example, the HCR series manufactured by Furukawa Rock Drill Co., Ltd. can be used for the drilling machine 70. The drilling machine 70 is preferably a drilling machine operated by hydraulic pressure. The hydraulic pressure to the drilling machine 70 can be supplied from the work vehicle 3000 via a hydraulic control device. The drilling machine 70 is vertically movably held by the first holding member 80. As will be described later, the drilling machine 70 moves vertically with respect to the first holding member 80 by the first moving means 90. The first holding member 80 guides the vertical movement of the drilling machine 70. The first holding member 80 is attached to the second support column 50 so as to be movable in the left-right direction (that is, the axial direction of the second support column 50) but immovable in the vertical direction (that is, the direction perpendicular to the axial direction of the second support column 50).

[0038] <1-5. First moving means> As can be seen from the comparison between FIG. 2B and FIG. 3, the first moving means 90 moves the perforator 70 so as to approach the object to be destroyed 2000 and move away from the object to be destroyed 2000. The first moving means 90 is preferably a hydraulic cylinder. The hydraulic pressure to the hydraulic cylinder can be supplied from the work vehicle 3000 via the hydraulic control device. As shown in FIGS. 2B and 2C, the axial direction of the hydraulic cylinder is parallel to the vertical direction. The hydraulic cylinder includes a cylinder tube 91 and a piston rod 92. The cylinder tube 91 is directly or indirectly coupled to the first holding member 80. The piston rod 92 is directly or indirectly coupled to the perforator 70 at a position below the first holding member 80. As shown in FIG. 3, when the piston rod 92 contracts, the perforator 70 moves upward along the first holding member 80 and moves away from the object to be destroyed 2000. On the other hand, as shown in FIG. 2B, when the piston rod 92 extends, the perforator 70 moves downward along the first holding member 80 and approaches the object to be destroyed 2000.

[0039] <1-6. Second moving means> As can be seen from the comparison between FIG. 2A and FIG. 4, the second moving means 100 moves the first holding member 80 along the axial direction of the second support column 50. Thereby, the drilling machine 70 can also be moved along the axial direction of the second support column 50. The second moving means 100 is preferably a hydraulic cylinder. The hydraulic pressure to the hydraulic cylinder can be supplied from the work vehicle 3000 via hydraulic control equipment. As shown in FIGS. 2A and 2C, the axial direction of the hydraulic cylinder is parallel to the axial direction of the second support column 50. The hydraulic cylinder includes a cylinder tube 101 and a piston rod 102. The cylinder tube 101 is directly or indirectly coupled to the second support column 50. The piston rod 102 is directly or indirectly coupled to the first holding member 80. As shown in FIG. 4, when the piston rod 102 contracts, the first holding member 80 moves along the axial direction of the second support column 50 so as to approach the first support column 10. Therefore, the drilling machine 70 also moves so as to approach the first support column 10. On the other hand, as shown in FIGS. 2A and 2C, when the piston rod 102 extends, the first holding member 80 moves along the axial direction of the second support column 50 so as to move away from the first support column 10. Therefore, the drilling machine 70 also moves so as to move away from the first support column 10.

[0040] <1-7. Rotating means> As shown in FIGS. 5A and 5B, the rotating means 110 rotates the second support column 50 with respect to the first support column 10. By rotating the second support column 50, the drilling machine 70 and the rock cutting device 140 can be tilted so that the central axes of the drilling machine 70 and the rock cutting device 140 are inclined with respect to the central axis of the first support column 10. As a result, an oblique hole 2000a can be opened in the object to be destroyed 2000 by the drilling machine 70, and a pair of blades 1412a, 1412b of the rock cutting machine 141 can be inserted into the oblique hole 2000a.

[0041] The rotating means 110 is preferably a hydraulic cylinder. The hydraulic pressure to the hydraulic cylinder can be supplied from the work vehicle 3000 via a hydraulic control device. As shown in FIGS. 2C, 5A, and 5B, the hydraulic cylinder includes a cylinder tube 111 and a piston rod 112. The cylinder tube 111 is directly or indirectly coupled to the first support column 10 at a position above the second support column 50. The piston rod 112 is directly or indirectly coupled to the second support column 50 at a position closer to the rock breaking device 140 than the first support column 10.

[0042] As shown in FIG. 2C, when the piston rod 112 has a predetermined extension amount, the central axis of the second support column 50 is orthogonal to the central axis of the first support column 10. As shown in FIG. 5A, when the piston rod 112 contracts more than the predetermined extension amount, the second support column 50 rotates such that the side of the second support column 50 where the rock breaking device 140 is attached rises and the side where the drilling machine 70 is attached descends. Thereby, the drilling machine 70 inclines so as to approach the first support column 10 as it goes downward. Also, the rock breaking device 140 inclines so as to move away from the first support column 10 as it goes downward. On the other hand, as shown in FIG. 5B, when the piston rod 112 extends more than the predetermined extension amount, the second support column 50 rotates such that the side of the second support column 50 where the rock breaking device 140 is attached descends and the side where the drilling machine 70 is attached rises. Thereby, the drilling machine 70 inclines so as to move away from the first support column 10 as it goes downward. Also, the rock breaking device 140 inclines so as to approach the first support column 10 as it goes downward.

[0043] <1-8. Guide support column> The guide post 120 guides the vertical movement of the second holding member 130. As shown in FIG. 2A, the guide post 120 extends parallel to the first post 10. The guide post 120 is attached to the second post 50 at a position on the opposite side of the first holding member 80 with respect to the central axis of the first post 10. Further, the guide post 120 is attached to the second post 50 so as to be movable in the left - right direction but immovable in the vertical direction. When the drilling and rock - breaking device 1000 is in use, the lower end of the guide post 120 is not in contact with the object to be broken 2000 and floats above the object to be broken 2000.

[0044] <1 - 9. Second holding member> As shown in FIG. 2A, the second holding member 130 holds the rock - breaking device 140. The second holding member 130 is attached to the guide post 120. The second holding member 130 is movable in the axial direction (i.e., the vertical direction) of the guide post 120 with respect to the guide post 120, but is immovable in the direction perpendicular to the axial direction of the guide post 120 (i.e., the left - right direction).

[0045] <1 - 10. Rock - breaking device> As shown in FIG. 2A, the rock - breaking device 140 is arranged on the opposite side of the drilling machine 70 with respect to the first post 10. As shown in FIGS. 6A and 6B, the rock - breaking device 140 includes a rock - breaker 141, a first swing mechanism 142, a buffer mechanism 143, a second swing mechanism 144, a mounting bracket 145, and a motor 146.

[0046] The rock - breaker 141 is a device that applies a force to the object to be broken 2000 and breaks the object to be broken 2000 by cutting. The rock - breaker 141 is preferably a rock - breaker operated by hydraulic pressure. The hydraulic pressure to the rock - breaker 141 can be supplied from the work vehicle 3000 via a hydraulic control device. A known rock - breaker can be used as the rock - breaker 141. Therefore, the structure of the rock - breaker 141 will be briefly described.

[0047] As shown in FIGS. 6A and 6B, the rock breaker 141 includes a casing 1411, a pair of blades 1412a and 1412b, a wedge 1413, and a piston rod (not shown). One end of each of the pair of blades 1412a and 1412b is inserted into the casing 1411. Also, the pair of blades 1412a and 1412b extends from the casing 1411. The wedge 1413 is disposed between the pair of blades 1412a and 1412b. As shown in FIG. 6C, the wedge 1413 advances downward from between the pair of blades 1412a and 1412b and moves the pair of blades 1412a and 1412b away from each other. The piston rod is disposed within the casing 1411. The piston rod reciprocates within the casing 1411 to advance or retract the wedge 1413. The piston rod is actuated, for example, by hydraulic pressure supplied from the work vehicle 3000.

[0048] Next, the operation of the rock breaker 141 will be described. Insert the pair of blades 1412a and 1412b into the hole 2000a formed in the object 2000 to be broken. Push the wedge 1413 with the piston rod and move the wedge 1413 until the tip of the wedge 1413 extends beyond the tips of the pair of blades 1412a and 1412b as shown in FIG. 6C. As the wedge 1413 moves, the pair of blades 1412a and 1412b are gradually spread apart from each other. Then, by applying a force to the object 2000 to be broken with the spread pair of blades 1412a and 1412b, cracks can be generated in the object 2000 to be broken, and the object 2000 to be broken can be split.

[0049] The first swing mechanism 142 is provided above the rock breaker 141. As shown in FIG. 7, the rock breaker 141 can be swung by the first swing mechanism 142 and can take a posture inclined with respect to the vertical direction. Therefore, even when the hole 2000a is inclined, the pair of blades 1412a and 1412b of the rock breaker 141 can be inserted into the inclined hole 2000a.

[0050] As shown in FIG. 6A, the first swing mechanism 142 includes a seat portion 1421 and a shaft member 1422. The seat portion 1421 is fixed to the first plate 1431 of the buffer mechanism 143. The shaft member 1422 includes a shaft 1422a and a ball 1422b. The first end portion of the shaft 1422a is fixed to the rock breaker 141. The ball 1422b is integrated with the second end portion of the shaft 1422a. The ball 1422b is in contact with the seat portion 1421. The ball 1422b is not fixed to the seat portion 1421. The ball 1422b is rotatable longitudinally with respect to the seat portion 1421 while its surface is in contact with the seat portion 1421. Therefore, as shown in FIG. 7, the rock breaker 141 can swing freely and take a posture inclined with respect to the vertical direction.

[0051] The buffer mechanism 143 absorbs the load applied to the rock breaker 141. As shown in FIG. 6A, the buffer mechanism 143 includes a first plate 1431, a second plate 1432, a plurality of shafts 1433, and a plurality of elastic members 1434.

[0052] The first plate 1431 includes a circular base portion 1431a and a cylindrical peripheral wall 1431b extending from the base portion 1431a. The second plate 1432 includes a circular base portion 1432a and a cylindrical peripheral wall 1432b extending from the base portion 1432a. The second plate 1432 has a structure obtained by turning the first plate 1431 upside down. The first plate 1431 and the second plate 1432 are arranged at intervals in the vertical direction. The plurality of shafts 1433 are arranged at equal intervals in the circumferential direction of the base portion 1431a and the base portion 1432a. The plurality of shafts 1433 penetrate through the base portion 1431a and the base portion 1432a. Fasteners such as bolts are attached to portions of each shaft 1433 that extend downward from the base portion 1431a and portions that extend upward from the base portion 1432a. Thereby, the shaft 1433 is prevented from coming off the first plate 1431 and the second plate 1432. Each elastic member 1434 is, for example, a coil spring. The shaft 1433 is inserted inside each elastic member 1434. Each elastic member 1434 is arranged between the base portion 1431a and the base portion 1432a.

[0053] The first plate 1431 and the second plate 1432 are movable relative to the shaft 1433 in the axial direction of the shaft 1433. For example, when a pair of blades 1412a, 1412b of the rock breaker 141 contact the object 2000 to be broken and the rock breaker 141 is pushed upward, the first plate 1431 moves closer to the second plate 1432. At this time, the elastic member 1434 is compressed by the first plate 1431 and the second plate 1432. In this way, the elastic member 1434 can absorb the load applied to the rock breaker 141.

[0054] The second swing mechanism 144 is provided above the buffer mechanism 143. As shown in FIG. 8, the rock breaker 141 is swingable by the second swing mechanism 144 and can take a posture inclined with respect to the vertical direction. Therefore, even when the hole 2000a is inclined, a pair of blades 1412a, 1412b of the rock breaker 141 can be inserted into the inclined hole 2000a.

[0055] As shown in FIG. 6A, the second swing mechanism 144 includes a seat portion 1441 and a shaft member 1442. The seat portion 1441 is fixed to the second plate 1432 of the buffer mechanism 143. The shaft member 1442 includes a shaft 1442a and a ball 1442b. The first end portion of the shaft 1442a is directly or indirectly coupled to the motor 146. The ball 1442b is integrated with the second end portion of the shaft 1442a. The ball 1442b is in contact with the seat portion 1441. The seat portion 1441 is not fixed to the ball 1442b. The seat portion 1441 is rotatable longitudinally with respect to the ball 1442b while being in contact with the surface of the ball 1442b. Therefore, as shown in FIG. 8, the rock breaker 141 can swing freely and can take a posture inclined with respect to the vertical direction.

[0056] As shown in FIG. 2D, the mounting bracket 145 is fixed to the second holding member 130. The mounting bracket 145 is immovable with respect to the second holding member 130. As shown in FIGS. 2D and 6B, the mounting bracket 145 is in the shape of an L-shaped plate in a side view.

[0057] As shown in FIGS. 6A and 6B, the motor 146 is disposed on the mounting bracket 145. The motor 146 rotates the rock breaker 141, the first swing mechanism 142, the buffer mechanism 143, and the second swing mechanism 144 together about their central axes with respect to the arm 3100. The motor 146 is preferably a hydraulic motor. The hydraulic pressure to the hydraulic motor can be supplied from the work vehicle 3000 via a hydraulic control device. The rock breaker 141, the first swing mechanism 142, the buffer mechanism 143, and the second swing mechanism 144 are rotatable 360 degrees. Note that the motor 146 can rotate forward and backward, and thus the rock breaker 141, the first swing mechanism 142, the buffer mechanism 143, and the second swing mechanism 144 can rotate both clockwise and counterclockwise. By rotating (self-rotating) the rock breaker 141 by the motor 146, the opening direction of the pair of blades 1412a, 1412b can be changed.

[0058] <1-11. Grease Supply Device> The grease supply device 150 automatically supplies grease to the rock drill 141. As shown in FIG. 2A, the grease supply device 150 includes a tank 151 for storing grease and a tube 152 connecting the tank 151 and the rock drill 141. The grease supply device 150 can use, for example, a known electric grease gun.

[0059] <1-12. Third moving means> As can be seen from the comparison between FIG. 2A and FIG. 9A and the comparison between FIG. 2D and FIG. 9B, the third moving means 160 moves the second holding member 130 up and down, thereby moving the rock drill 141 closer to and away from the object to be destroyed 2000. The third moving means 160 is preferably a hydraulic cylinder. The hydraulic pressure to the hydraulic cylinder can be supplied from the work vehicle 3000 via a hydraulic control device. As shown in FIGS. 2D and 9B, the axial direction of the hydraulic cylinder is parallel to the vertical direction. The hydraulic cylinder includes a cylinder tube 161 and a piston rod 162. The cylinder tube 161 is directly or indirectly connected to the guide support 120. The piston rod 162 is directly or indirectly connected to the second holding member 130. As shown in FIGS. 9A and 9B, when the piston rod 162 extends, the second holding member 130 moves downward along the guide support 120. Thereby, the rock drill 141 approaches the object to be destroyed 2000. On the other hand, as shown in FIGS. 2A and 2D, when the piston rod 162 contracts, the second holding member 130 moves upward along the guide support 120. Thereby, the rock drill 141 moves away from the object to be destroyed 2000.

[0060] <1-13. Clamping mechanism> The clamping mechanism 170 clamps the pair of blades 1412a, 1412b so that the pair of blades 1412a, 1412b do not spread before the pair of blades 1412a, 1412b of the rock breaker 141 are inserted into the hole 2000a. As shown in FIG. 2A, the clamping mechanism 170 includes a pair of arms 171a, 171b. The pair of arms 171a, 171b can approach each other and can be separated from each other. The pair of arms 171a, 171b can grip the pair of blades 1412a, 1412b by approaching each other. The pair of blades 1412a, 1412b are loosely gripped by the pair of arms 171a, 171b. Therefore, the rock breaking device 140 can move up and down even when the pair of blades 1412a, 1412b are gripped by the pair of arms 171a, 171b. After most of the pair of blades 1412a, 1412b are inserted into the hole 2000a, the pair of arms 171a, 171b are separated from each other. Thereby, the clamping of the pair of blades 1412a, 1412b is released. The pair of arms 171a, 171b are preferably actuated by hydraulic pressure. The hydraulic pressure to the pair of arms 171a, 171b can be supplied from the work vehicle 3000 via a hydraulic control device.

[0061] <1-14. Fourth moving means> As can be seen from the comparison between FIG. 2A and FIG. 10A, the fourth moving means 180 moves the second holding member 130 along the axial direction of the second support column 50. Thereby, the rock cutting device 140 can be moved along the axial direction of the second support column 50. The fourth moving means 180 is preferably a hydraulic cylinder. The hydraulic pressure to the hydraulic cylinder can be supplied from the work vehicle 3000 via a hydraulic control device. The axial direction of the hydraulic cylinder is parallel to the axial direction of the second support column 50. The hydraulic cylinder includes a cylinder tube 181 and a piston rod 182. As shown in FIGS. 2C and 10B, the cylinder tube 181 is directly or indirectly coupled to the second support column 50. The piston rod 182 is directly or indirectly coupled to the guide support column 120. As shown in FIGS. 10A and 10B, when the piston rod 182 contracts, the guide support column 120 moves along the axial direction of the second support column 50 so as to approach the first support column 10. Therefore, the rock cutting device 140 also moves so as to approach the first support column 10. On the other hand, as shown in FIGS. 2A and 2C, when the piston rod 182 extends, the guide support column 120 moves along the axial direction of the second support column 50 so as to move away from the first support column 10. Therefore, the rock cutting device 140 also moves so as to move away from the first support column 10.

[0062] <2. Effect> Since the first support column 10 is rotatable about the central axis of the first support column 10, the drilling machine 70 and the rock cutting device 140 can be swung around the first support column 10. By swinging the drilling machine 70 around the first support column 10, the drilling position can be changed. And by simply rotating the first support column 10, the rock cutting device 140 can be moved to the position of the hole 2000a drilled by the drilling machine 70. Therefore, the drilling work by the drilling machine 70 and the destruction work by the rock cutting device 140 can be made efficient.

[0063] The drilling machine 70 can be moved by the first moving means 90 so as to approach and move away from the object 2000 to be destroyed. Therefore, when the first support column 10 is rotated around the central axis of the first support column 10, the drilling machine 70 can be swiveled in a state away from the ground, so that failures of the drilling machine 70 caused by contact with the ground can be avoided.

[0064] The drilling machine 70 can be moved along the axial direction of the second support column 50 by the second moving means 100. Therefore, the drilling position can be changed along the axial direction of the second support column 50.

[0065] The drilling machine 70 and the rock cutting device 140 can take a posture inclined with respect to the object 2000 to be destroyed by the rotating means 110. Therefore, an oblique hole 2000a can be opened in the object 2000 to be destroyed by the drilling machine 70, and a pair of blades 1412a, 1412b of the rock cutting machine 141 can be inserted into the oblique hole 2000a.

[0066] Since the lower end of the first support column 10 is supported in a floating state from the upper surface of the base 411, the friction between the lower end of the first support column 10 and the upper surface of the base 411 can be eliminated, so that the first support column 10 can be rotated smoothly. Further, for example, when the drilling and rock cutting device 1000 is lowered onto the object 2000 to be destroyed, the impact applied to the drilling and rock cutting device 1000 can be absorbed by the elastic member 42.

[0067] By rotating the rock cutting machine 141 around the central axis of the rock cutting machine 141, the opening direction of the pair of blades 1412a, 1412b can be changed. As a result, the direction of applying force to the object 2000 to be destroyed can be changed. Among the objects 2000 to be destroyed, some are more likely to crack when a force is applied in a specific direction. For example, it is known that cracks occur in a rock mass only in a specific direction. Therefore, since the rock cutting machine 141 is rotatable, the opening direction of the pair of blades 1412a, 1412b can be easily changed so that the object 2000 to be destroyed can be easily cracked.

[0068] The rock cutting machine 141 is swingable by the first swing mechanism 142 and / or the second swing mechanism 144. Therefore, when inserting the pair of blades 1412a and 1412b into the hole 2000a, even if the hole 2000a is slightly inclined, the rock cutting machine 141 can tilt so that the pair of blades 1412a and 1412b can enter along the inclination of the hole 2000a.

[0069] Since the rock drilling and cutting device 1000 is provided with the grease supply device 150, grease can be automatically supplied to the rock cutting machine 141.

[0070] The rock cutting machine 141 is movable by the third moving means 160 so as to approach the object to be destroyed 2000 and to move away from the object to be destroyed 2000. Therefore, when rotating the first support column 10 around the central axis of the first support column 10, the rock cutting machine 141 can be swung in a state away from the ground, so that a failure of the rock cutting machine 141 caused by the contact of the rock cutting machine 141 with the ground can be avoided.

[0071] Since the clamp mechanism 170 is provided, the pair of blades 1412a and 1412b can be gripped. Thereby, it is possible to prevent the pair of blades 1412a and 1412b from spreading. As a result, when inserting the pair of blades 1412a and 1412b into the hole 2000a, it is possible to prevent the pair of blades 1412a and 1412b from being caught by the object to be destroyed 2000, so that the pair of blades 1412a and 1412b can be smoothly inserted into the hole 2000a.

[0072] Since the fourth moving means 180 is provided, the rock cutting device 140 can be moved along the axial direction of the second support column 50 to the position of the hole 2000a.

[0073] <3. Modified Example> The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention. Hereinafter, modifications of the present invention will be described. The modifications described below can be applied to the above-described embodiments alone or in appropriate combination without departing from the gist of the present invention.

[0074] (3-1) In the above, the embodiment in which the perforating rock-breaking device 1000 makes a hole 2000a in the object to be broken 2000 in the vertical direction, inserts a pair of blades 1412a, 1412b of the rock breaker 141 into the vertically extending hole 2000a, and breaks the object to be broken 2000 has been described. However, it is also possible to make a horizontal hole 2000a in the object to be broken 2000 by the perforating rock-breaking device 1000, insert a pair of blades 1412a, 1412b into the horizontally extending hole 2000a, and break the object to be broken 2000. In order to make a horizontal hole 2000a in the object to be broken 2000, the perforating rock-breaking device 1000 may be arranged by moving the arm 3100 so that the axial direction of the first support column 10 is parallel to the horizontal direction. The method of making a horizontal hole 2000a in the object to be broken 2000 and breaking the object to be broken 2000 can be used, for example, when excavating a tunnel or the like.

[0075] (3-2) The cylinder tube 91 of the first moving means 90 may be coupled to the drilling machine 70, and the piston rod 92 may be coupled to the first holding member 80. In this case, the cylinder tube 91 will move with respect to the piston rod 92.

[0076] (3-3) The cylinder tube 101 of the second moving means 100 may be coupled to the first holding member 80, and the piston rod 102 may be coupled to the second support column 50. In this case, the cylinder tube 101 will move with respect to the piston rod 102.

[0077] (3-4) The cylinder tube 111 of the rotating means 110 may be coupled to the second support column 50, and the piston rod 112 may be coupled to the first support column 10. In this case, the cylinder tube 111 will move with respect to the piston rod 112.

[0078] (3-5) The cylinder tube 161 of the third moving means 160 may be coupled to the second holding member 130, and the piston rod 162 may be coupled to the guide support 120. In this case, the cylinder tube 161 will move with respect to the piston rod 162.

[0079] (3-6) The cylinder tube 181 of the fourth moving means 180 may be coupled to the guide support 120, and the piston rod 182 may be coupled to the second support 50. In this case, the cylinder tube 181 will move with respect to the piston rod 182.

Explanation of reference numerals

[0080] 1000 Percussion rock drilling device 10 First support 20 Rotating mechanism 21 Motor 22 Driving gear 23 Driven gear 40 Support mechanism 41 Seat 411 Base 412 Shaft 42 Elastic member 50 Second support 60 Rotating support mechanism 70 Drilling machine 80 First holding member 90 First moving means 91 Cylinder tube 92 Piston rod 100 Second moving means 101 Cylinder tube 102 Piston rod 110 Rotating means 111 Cylinder tube 112 Piston rod 120 Guide support 130 Second holding member 140 Rock drilling device 141 Rock drill 1412a Blade 1412b Blade 142 First swing mechanism 143 Buffer mechanism 144 Second swing mechanism 146 Motor 150 Grease supply device 160 Third moving means 161 Cylinder tube 162 Piston rod 170 Clamping mechanism 180 Fourth moving means 181 Cylinder tube 182 Piston rod 2000 Object to be destroyed 2000a Hole 3000 Work vehicle 3100 Arm

Claims

1. A drilling and rock-breaking device for breaking an object to be broken, which is an attachment type detachable from the arm of a work vehicle, a first support column, a rotation mechanism for rotating the first support column with respect to the arm, a second support column extending non-parallel to the first support column, a drill disposed on the second support column for making a hole in the object to be broken, a rock-breaking device disposed on the second support column at a position opposite to the drill with respect to the first support column, the rock-breaking device including a rock breaker for applying pressure to the object to be broken and breaking it, and a drilling and rock-breaking device comprising the same.

2. The drilling and rock-breaking device according to claim 1, further comprising moving means for moving the drill closer to and away from the object to be broken.

3. The drilling and rock-breaking device according to claim 2, further comprising a holding member, wherein the holding member is attached to the second support column, the drill is held by the holding member, the moving means is a hydraulic cylinder, the hydraulic cylinder includes a cylinder tube and a piston rod, one of the cylinder tube and the piston rod is coupled to the holding member, and the other of the cylinder tube and the piston rod is coupled to the drill.

4. The drilling and rock-breaking device according to claim 1, further comprising moving means for moving the drill along the axial direction of the second support column.

5. The drilling and rock-breaking device according to claim 4, further comprising a holding member, wherein the holding member is attached to the second support column and is movable in the axial direction of the second support column, the drill is held by the holding member, the moving means is a hydraulic cylinder, the hydraulic cylinder includes a cylinder tube and a piston rod, one of the cylinder tube and the piston rod is coupled to the second support column, and the other of the cylinder tube and the piston rod is coupled to the holding member.

6. The drilling and rock-breaking device according to claim 1, wherein the second support column is rotatably coupled to the first support column, and further comprising rotating means for rotating the second support column with respect to the first support column.

7. The rotating means is a hydraulic cylinder, the hydraulic cylinder includes a cylinder tube and a piston rod, and one of the cylinder tube and the piston rod is coupled to the first support column, ​ ​ ​ ​ ​ ​ ​ The other of the cylinder tube and the piston rod is coupled to the second support column at a position axially displaced from the coupling position of one of the cylinder tube and the piston rod and the first support column in the axial direction of the second support column. The rock drilling and cutting device according to claim 6.

8. The rotation mechanism is a motor, a drive gear attached to the motor shaft of the motor, a driven gear that meshes with the drive gear and is fixed to the first support column, The rock drilling and cutting device according to claim 1, comprising:

9. The rock drilling and cutting device further comprises a support mechanism for supporting the lower part of the first support column, The support mechanism is a seat having a base and a shaft, an elastic member attached to the shaft, and comprises The first support column is supported in a floating state from the base by the elastic member. The rock drilling and cutting device according to claim 1.

10. The rock drilling and cutting device further comprises a motor for rotating the rock cutting machine. The rock drilling and cutting device according to claim 1.

11. The rock drilling and cutting device further comprises a swing mechanism for supporting the rock cutting machine so as to be swingable with respect to the arm. The rock drilling and cutting device according to claim 1.

12. The rock drilling and cutting device further comprises a buffer mechanism for absorbing the load applied to the rock cutting machine. The rock drilling and cutting device according to claim 1.

13. The rock drilling and cutting device a first swing mechanism for supporting the rock cutting machine so as to be swingable with respect to the arm, a second swing mechanism for supporting the rock cutting machine so as to be swingable with respect to the arm, a buffer mechanism disposed between the first swing mechanism and the second swing mechanism for absorbing the load applied to the rock cutting machine, The rock drilling and cutting device according to claim 1, further comprising:

14. The rock drilling and cutting device further comprises moving means for moving the rock drilling and cutting device closer to and away from the object to be destroyed. The rock drilling and cutting device according to claim 1.

15. a guide support column, a holding member held by the guide support column, and further comprises The rock drilling and cutting device is held by the holding member, The moving means is a hydraulic cylinder, The hydraulic cylinder comprises a cylinder tube and a piston rod, One of the cylinder tube and the piston rod is coupled to the guide support column, The other of the cylinder tube and the piston rod is coupled to the holding member. The rock drilling and cutting device according to claim 14.

16. The rock cutting device further includes moving means for moving the rock cutting device along the axial direction of the second support column. The rock drilling and cutting device according to claim 1.

17. A guide support column, A holding member held by the guide support column, The rock cutting device further includes: The rock cutting device is held by the holding member, The guide support column is movable in the axial direction of the second support column, The moving means is a hydraulic cylinder, The hydraulic cylinder includes a cylinder tube and a piston rod, One of the cylinder tube and the piston rod is coupled to the second support column, The other of the cylinder tube and the piston rod is coupled to the guide support column. The rock drilling and cutting device according to claim 16.

18. The rock cutting device further includes a grease supply device for automatically supplying grease to the rock cutting machine. The rock drilling and cutting device according to claim 1.

19. The rock cutting machine includes a pair of blades, The rock drilling and cutting device further includes a clamping mechanism for clamping the pair of blades. The rock drilling and cutting device according to claim 1.

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