Boring device

Abstract

To provide a boring device capable of easily changing the position of a hole.SOLUTION: A boring device 1000 is a device of an attachment type capable of being attached and detached to / from an arm 3100 of a work vehicle 3000. The boring device 1000 includes: a first post 10; a rotation mechanism 20 for rotating the first post 10 relative to the arm 3100; a second post 50 that extends non-parallel to the first post 10; a holding member 80 attached to the second post 50; and a drill 70 that is held by the holding member 80.SELECTED DRAWING: Figure 2A

Description

Technical Field

[0001] The present invention relates to a drilling device.

Background Art

[0002] When destroying a target object such as a rock mass or a concrete structure by a rock breaker or blasting, it is necessary to make holes in the target object for inserting the blades and wedges of the rock breaker or gunpowder. Patent Document 1 discloses a blasting drilling device including a mobile carriage, a support member attached to the mobile carriage and provided with a plurality of joints including a rotary joint and a linear motion joint, a drilling machine attached to the support member and having a drilling rod, a drifter, etc., a joint driving device for driving each joint (rotary joint, linear motion joint) of the support member, and a drifter driving device.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a conventional drilling device, in order to change the position where a hole is made, it is necessary to move the mobile carriage or move the arm of the mobile carriage, which is time-consuming.

[0005] An object of the present invention is to provide a drilling device capable of easily changing the position where a hole is made in a target object.

Means for Solving the Problems

[0006] The present application provides an invention in the following aspects. (Item 1) A drilling device for making a hole in a target object, which is an attachment-type drilling device detachable from the arm of a work vehicle, The 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 holding member attached to the second support column, a punching machine held by the holding member, and a punching device comprising the same.

[0007] (Item 2) The punching device further comprises moving means for moving the punching machine so as to approach and move away from the object to be destroyed. The punching device according to Item 1.

[0008] (Item 3) The moving means is a hydraulic cylinder, the hydraulic cylinder comprising a cylinder tube and a piston rod, one of the cylinder tube and the piston rod being coupled to the holding member, the other of the cylinder tube and the piston rod being coupled to the punching machine. The punching device according to Item 2.

[0009] (Item 4) The punching device further comprises moving means for moving the punching machine along the axial direction of the second support column. The punching device according to any one of Items 1 to 3.

[0010] (Item 5) The holding member is movable in the axial direction of the second support column, the moving means is a hydraulic cylinder, the hydraulic cylinder comprising a cylinder tube and a piston rod, one of the cylinder tube and the piston rod being coupled to the second support column, the other of the cylinder tube and the piston rod being coupled to the holding member. The punching device according to Item 4.

[0011] (Item 6) The second support column is rotatably coupled to the first support column, and further includes a rotating means for rotating the second support column with respect to the first support column. The drilling device according to any one of Items 1 to 5.

[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 the first support column and one of the cylinder tube and the piston rod with respect to the second support column. The drilling device according to Item 6.

[0013] (Item 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, and the drilling device according to any one of Items 1 to 7 including the above.

[0014] (Item 9) further includes a support mechanism for supporting the first support column on the object to be destroyed, the support mechanism is a receiving seat including a base and a shaft, an elastic member attached to the shaft, and includes the above, the first support column is supported in a floating state from the base by the elastic member. The drilling device according to any one of Items 1 to 8.

Advantages of the Invention

[0015] In the drilling device of the present invention, by rotating the first support column, the drilling machine can be rotated around the first support column. Therefore, the position where the hole is opened can be easily changed.

Brief Description of the Drawings

[0016]

Figure 1

Figure 2A

Figure 2B

Figure 2C

Figure 2D

Figure 3

Figure 4

Figure 5A

Figure 5B

Embodiments for Carrying Out the Invention

[0017] The drilling device 1000 of the present invention will be described with reference to the drawings.

[0018] <1. Structure of the Drilling Device> As shown in FIG. 1, the drilling device 1000 is a device for opening a hole 2000a in a destruction object 2000 such as a rock formation or concrete. The destruction object 2000 is destroyed by the pressure from the blades of a rock breaker inserted into the hole 2000a or by blasting gunpowder placed in the hole 2000a.

[0019] The drilling 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.

[0020] Hereinafter, for convenience of explanation, the vertical direction in FIG. 1 is defined as the vertical direction (or longitudinal direction) of the drilling device 1000, and the horizontal direction in FIG. 1 is defined as the horizontal direction (or lateral direction) of the drilling device 1000. The vertical direction is parallel to the vertical direction. FIG. 1 shows an embodiment in which a vertical hole 2000a is formed in the object 2000 to be destroyed by the drilling device 1000. When there are a plurality of identical components, for ease of viewing the drawings, only some of the plurality of identical components may be labeled.

[0021] As shown in FIGS. 2A to 2D, the drilling device 1000 includes a first column 10, a rotation mechanism 20, a mounting bracket 30, a support mechanism 40, a second column 50, a rotation support mechanism 60, a drill 70, a holding member 80, a first moving means 90, a second moving means 100, a rotation means 110, and a control box 120. FIGS. 2A to 2D show a state in which the axial direction of the first column 10 is parallel to the vertical direction, the axial direction of the second column 50 is parallel to the horizontal direction, and the axial direction of the first column 10 and the axial direction of the second column 50 are orthogonal to each other.

[0022] The rotation mechanism 20 is disposed at the upper part of the first 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 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 column 10. The first column 10 is installed on the object 2000 to be destroyed via the support mechanism 40. The control box 120 is attached to the first column 10. Hydraulic control equipment is housed in the control box 120. The hydraulic control equipment controls the hydraulic pressure supplied to the rotation mechanism 20, the drill 70, the first moving means 90, the second moving means 100, and the rotation means 110. 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.

[0023] 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 and the drilling machine 70 pivot around the first support column 10.

[0024] 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. Further, 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.

[0025] 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 with respect 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.

[0026] 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 rotation support mechanism 60. The rotation support mechanism 60 includes a shaft, bearings, and the like.

[0027] 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 held by a holding member 80 so as to be vertically movable. As will be described later, the drilling machine 70 moves vertically with respect to the holding member 80 by a first moving means 90. The holding member 80 guides the vertical movement of the drilling machine 70. The 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).

[0028] As can be seen from the comparison between FIG. 2B and FIG. 3, the first moving means 90 moves the drilling machine 70 so as to approach the object to be destroyed 2000 and to 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 a hydraulic control device. As shown in FIGS. 2B to 2D, 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 holding member 80. The piston rod 92 is directly or indirectly coupled to the drilling machine 70 at a position below the holding member 80. As shown in FIG. 3, when the piston rod 92 contracts, the drilling machine 70 moves upward along the 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 drilling machine 70 moves downward along the holding member 80 and approaches the object to be destroyed 2000.

[0029] As can be seen from the comparison between FIG. 2A and FIG. 4, the second moving means 100 moves the drilling machine 70 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 a hydraulic control device. 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 holding member 80. As shown in FIG. 4, when the piston rod 102 contracts, the 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 along the axial direction of the second support column 50 so as to approach the first support column 10. On the other hand, as shown in FIG. 2A, when the piston rod 102 extends, the 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 along the axial direction of the second support column 50 so as to move away from the first support column 10.

[0030] As shown in FIGS. 5A and 5B, the rotating means 110 rotates the second column 50 with respect to the first column 10. By rotating the second column 50, the drilling machine 70 can be tilted so that the central axis of the drilling machine 70 is inclined with respect to the central axis of the first column 10. As a result, an oblique hole 2000a can be formed in the object 2000 to be destroyed by the drilling machine 70.

[0031] 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 the 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 column 10 at a position above the second column 50. The piston rod 112 is directly or indirectly coupled to the second column 50 on the side opposite to the holding member 80 with respect to the central axis of the first column 10.

[0032] As shown in FIG. 2C, when the piston rod 112 has a predetermined extension amount, the central axis of the second column 50 is orthogonal to the central axis of the first column 10. As shown in FIG. 5A, when the piston rod 112 contracts more than the predetermined extension amount, the second column 50 rotates such that the side of the second column 50 to which the piston rod 112 is coupled rises and the side to which the drilling machine 70 is attached descends. Thereby, the drilling machine 70 is tilted so as to approach the first 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 column 50 rotates such that the side of the second column 50 to which the piston rod 112 is coupled descends and the side to which the drilling machine 70 is attached rises. Thereby, the drilling machine 70 is tilted so as to move away from the first column 10 as it goes downward.

[0033] <2. Effect> Since the first support column 10 is rotatable around the central axis of the first support column 10, the drilling machine 70 can be rotated around the first support column 10. Therefore, the drilling machine 70 can be pivoted around the first support column 10 to change the drilling position.

[0034] The drilling machine 70 is movable by the first moving means 90 so as to approach and move away from the object to be destroyed 2000. 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 pivoted in a state of being separated from the ground, so that a failure of the drilling machine 70 caused by contact with the ground can be avoided.

[0035] The drilling machine 70 is movable 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.

[0036] The drilling machine 70 can take a posture inclined with respect to the object to be destroyed 2000 by the rotating means 110. Thereby, an oblique hole 2000a can be opened in the object to be destroyed 2000.

[0037] 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 device 1000 is lowered onto the object to be destroyed 2000, the impact applied to the drilling device 1000 can be absorbed by the elastic member 42.

[0038] <3. Modification Example> The present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the gist of the present invention. Hereinafter, modification examples of the present invention will be described. The modification examples described below can be applied to the above-described embodiment alone or in appropriate combination without departing from the gist of the present invention.

[0039] (3-1) In the above description, an embodiment has been described in which the drilling device 1000 forms a hole 2000a in the object to be destroyed 2000 in the vertical direction. However, the drilling device 1000 can also form a horizontal hole 2000a in the object to be destroyed 2000. In order to form a horizontal hole 2000a in the object to be destroyed 2000, the arm 3100 may be moved to arrange the drilling device 1000 such that the axial direction of the first column 10 is parallel to the horizontal direction. The method of forming a horizontal hole 2000a in the object to be destroyed 2000 can be used, for example, when excavating a tunnel or the like.

[0040] (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 holding member 80. In this case, the cylinder tube 91 will move with respect to the piston rod 92.

[0041] (3-3) The cylinder tube 101 of the second moving means 100 may be coupled to the holding member 80, and the piston rod 102 may be coupled to the second column 50. In this case, the cylinder tube 101 will move with respect to the piston rod 102.

[0042] (3-4) The cylinder tube 111 of the rotating means 110 may be coupled to the second column 50, and the piston rod 112 may be coupled to the first column 10. In this case, the cylinder tube 111 will move with respect to the piston rod 112.

Explanation of reference numerals

[0043] 1000 Drilling device 10 First column 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 column 60 Rotating support mechanism 70 Punching machine 80 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 2000 Object to be destroyed 2000a Hole 3000 Work vehicle 3100 Arm

Claims

1. A drilling device for making holes in an object to be destroyed, which is an attachment-type drilling device detachable from the arm of a work vehicle, comprising: 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 holding member attached to the second support column; a drill held by the holding member; A drilling device comprising the above.

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

3. 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 holding member, The other of the cylinder tube and the piston rod is coupled to the drill. The drilling device according to claim 2.

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

5. The holding member is movable in the axial direction of the second support column, 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 second support column, The other of the cylinder tube and the piston rod is coupled to the holding member. The drilling device according to claim 4.

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

7. The rotating 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 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 with respect to the second support column. The drilling device according to claim 6.

8. The rotation mechanism comprises: 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 device according to claim 1, comprising

9. further comprising a support mechanism for supporting the first column on the object to be destroyed, the support mechanism comprising a seat having a base and a shaft, an elastic member attached to the shaft, and the first column is supported in a floating state from the base by the elastic member, The drilling device according to claim 1.

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