Rod holding device and rod conveying device

Abstract

To be able to reliably hold a rod and to enable such holding without being influenced by the diameter of the rod.SOLUTION: A magnet type holding member 3 is provided with: a magnet case 30 housing an electromagnet for attracting a rod 5; and a switch lever 31 that switches ON / OFF of the electromagnet. A ratchet type holding member 4 includes: a clamp member 40 that clamps the rod 5 between the clamp member and the magnet type holding member 3; a ratchet gear 41 rotatable together with turning of the clamp member 40; a ratchet pawl 42 that can be engaged with and disengaged from the ratchet gear 41 and locks reverse rotation of the gear; an operation lever 43; and a release lever 44 that releases the engagement of the ratchet pawl with the ratchet gear.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a rod holding device that holds and releases a boring rod, and a rod transport device that is equipped with this rod holding device and transports the boring rod to a drilling machine. [Background technology]

[0002] Patent Documents 1 and 2 disclose devices that hold and release boring rods (hereinafter, simply referred to as rods) in order to handle the same.

[0003] The device described in Patent Document 1 has a structure in which a support member is connected to the arm of an articulated robot, an electromagnet is attached to the tip of the support member, and a workpiece (rod) is attracted or released by the magnetic force of the electromagnet. The device described in Patent Document 2 has support plates attached to both ends of an arm and a clamp member attached to the middle part of the arm, and is structured so that the rod is held by having both ends supported by the support plates and the middle part of the rod clamped to the clamp member. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2010-184305 A [Patent Document 2] Japanese Patent Application Publication No. 6-341284 Summary of the Invention [Problem to be solved by the invention]

[0005] In the device described in Patent Document 1, the rod is held only by the magnetic force of an electromagnet, so there is a limit to the holding force, and there is a problem that it is difficult to securely hold a heavy rod. In the device described in Patent Document 2, the clamp member and support plate must be matched to the diameter of the rod, and there is a problem that the rod cannot be held if the clamp member and support plate do not match the rod diameter.

[0006] The present invention has been made in consideration of the above-mentioned problems with the conventional technology, and aims to provide a rod holding device that can securely hold a rod and can hold the rod regardless of the rod diameter, and a rod transport device that uses this rod holding device. [Means for solving the problem]

[0007] The rod holding device of the present invention is a rod holding device in which a magnetic holding member that attracts and holds a rod by magnetic force, and a ratchet holding member that clamps and holds the rod are assembled to a hanging member, the magnetic holding member comprising a magnet case that houses an electromagnet that attracts and releases the rod, and a switching lever that switches the electromagnet on and off, and the ratchet holding member comprises a clamp member that can be rotated in both forward and reverse directions and clamps the rod between it and the magnetic holding member by rotating it in the forward direction, a ratchet gear that can rotate together with the rotation of the clamp member, a ratchet pawl that can be engaged and disengaged with the ratchet gear and engages with the ratchet gear to lock the rotation of the gear in the reverse direction, an operating lever that rotates the clamp member, a release lever that releases the ratchet pawl from engagement with the ratchet gear, and a lock spring that urges the ratchet pawl in the direction of engaging with the ratchet gear.

[0008] In the present invention, the ratchet type holding member is attached to the hanging member so that the clamp member is positioned below the magnet case and aligned side by side.

[0009] The clamp member may clamp the rod from below the magnet case by rotating in the forward direction.

[0010] The rod transport device of the present invention comprises a rod feeding mechanism which sequentially feeds out a plurality of rods, a crane mechanism which is vertically extendable and rotatable and which is arranged at the feeding end of the rod feeding mechanism, and the above-mentioned rod holding device, and is characterized in that a hanging member of the rod holding device is attached in a hanging state to the crane mechanism. Effect of the Invention

[0011] According to the rod holding device of the present invention, the rod can be securely held, and the holding can be performed regardless of the rod diameter.

[0012] Furthermore, the rod transport device of the present invention can reliably transport the rod holding device holding the rod. [Brief description of the drawings]

[0013] [Figure 1] 1 is a front view showing a rod holding device according to an embodiment of the present invention; [Diagram 2] FIG. [Diagram 3] FIG. 13 is a side view showing the rod holding state. [Figure 4] 1 is a perspective view of a rod transport device according to an embodiment of the present invention; [Diagram 5] FIG. 2 is a side view of the rod transport device showing its relationship to the excavator. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] 1 to 3 show a rod holding device 1 according to one embodiment of the present invention. The rod holding device 1 holds boring rods that are commonly used in the boring industry, such as single-tube rods and double-tube rods, and includes a hanging member 2, a magnetic holding member 3, and a ratchet-type holding member 4.

[0015] The hanging member 2 comprises an upper main frame 20 assembled in a rectangular frame shape, and a sub-frame 21 assembled to the lower side of the main frame 20. Hook members 22 are attached to the top and both side surfaces of the main frame 20. The hook members 22 are used to hang the rod holding device 1 from the rod transport device 10 shown in Figures 4 and 5 and other transport devices. The sub-frame 21 is formed in an L-shape, and the ratchet-type holding member 4 is attached to the front side.

[0016] The magnetic holding member 3 is a member that attracts and holds the rod 5 by magnetic force, and the magnetic case The magnet case 30 includes a switch 30 and a switching lever 31. An electromagnet (not shown) is housed inside the magnet case 30, and an attractive force is generated by the magnetic force of the electromagnet, thereby attracting the rod 5 to the underside of the magnet case 30. The magnet case 30 is disposed between the main frame 20 and the subframe 21, and is fixed to the main frame 20 and the subframe 21 by a fixing bolt 32.

[0017] The switching lever 31 is provided on the front side of the magnet case 30. The switching lever 31 switches the electromagnet between ON and OFF by rotating it, and in the horizontal state shown in Figures 1 and 2, the electromagnet is in the ON state. This causes the electromagnet to attract the rod 5, so that the rod 5 is attracted to the underside of the subframe 21 (see Figure 3). On the other hand, by rotating the switching lever 31 to the upright state, the electromagnet is turned OFF and the attractive force of the electromagnet is lost.

[0018] The ratchet type holding member 4 is a member that clamps and holds the rod 5 with a clamp member 40, and is attached to the front side of the subframe 21 with a mounting bracket 46. The ratchet type holding member 4 includes a clamp member 40, a ratchet gear 41, a ratchet pawl 42, an operation lever 43, a release lever 44, and a lock spring 45. In this embodiment, the clamp member 40 is attached to the subframe 21 so as to be in a horizontally aligned position below the magnet case 30. As a result, the clamp member 40 clamps the rod 5 from below the magnet case 30, so that the rod 5 can be sandwiched between the magnet case 30 (subframe 21) and the clamp member 40.

[0019] The clamp member 40 is supported by a support bracket 47 provided on the front side of the subframe 21 so as to be rotatable in both forward and reverse directions. When rotated in the forward direction (R direction in FIG. 3), the clamp member 40 comes into contact from below with the rod 5 attracted to the underside of the magnet case 30 of the magnetic holding member 3, thereby clamping the rod 5 (see FIG. 3). On the other hand, when the clamp member 40 is rotated in the reverse direction (S direction in FIG. 3), the clamp member 40 is released from the underside of the magnet case 30, and the clamping of the rod 5 is released. The clamp member 40 is provided with a clamp plate 40a for coming into contact with the rod 5.

[0020] The operating lever 43 is a lever for rotating the clamp member 40 in forward and reverse directions (R and S directions shown in FIG. 3). When the operating lever 43 rotates in the forward direction (R direction), the clamp member 40 rotates towards the rod 5 and comes into contact with and clamps the rod 5. When the operating lever 43 rotates in the reverse direction (S direction), the clamp member 40 rotates in a direction away from the rod 5 and releases the clamp on the rod 5.

[0021] The ratchet gear 41 is rotatably supported by being sandwiched between support brackets 47, and rotates together with the rotation of the clamp member 40. The ratchet gear 41 is formed with gear teeth 41a that permit rotation in the forward direction and lock rotation in the reverse direction.

[0022] The ratchet pawl 42 is attached to the subframe 21 so as to be capable of engaging and disengaging with the ratchet gear 41. When the ratchet pawl 42 engages with the ratchet gear 41, the rotation of the ratchet gear 41 is locked, and when the ratchet pawl 42 is disengaged from the ratchet gear 41, the ratchet gear 41 becomes rotatable. The lock spring 45 biases the ratchet pawl 42 in a direction in which the ratchet pawl 42 engages with the ratchet gear 41 . A release lever 44 is attached to the ratchet pawl 42, and by pulling up the release lever 44, the engagement between the ratchet pawl 42 and the ratchet gear 41 is released.

[0023] In the rod holding device 1 having the above structure, when the electromagnet in the magnet case 30 of the magnetic holding member 3 is in the ON state, the rod 5 is attracted to the underside of the magnet case 30 (subframe 21). Also, in the ratchet-type holding member 4, by rotating the operating lever 43 in the forward direction, the clamp member 40 rotates in the same direction and comes into contact with the lower part of the rod 5, thereby clamping the rod 5 attracted to the underside of the magnet case 30. As a result, the rod 5 is held by the cooperation of the magnetic attraction force and the clamping force of the clamp member 40, so that even a heavy rod 5 can be securely held. In addition, since the rod 5 is sandwiched between the magnet case 30 and the clamp member 40, it can be securely held regardless of the rod diameter.

[0024] To release the rod 5 from the rod holding member, the release lever 44 is pulled up to release the engagement between the ratchet pawl 42 and the ratchet gear 41, and in this state the operating lever 43 is rotated in the opposite direction (S direction) to rotate the clamp member 40 in the same direction (S direction). This releases the rod 5 from the clamp member 40.

[0025] 4 and 5 show a rod transport device 10 in which the rod holding device 1 can be used. The rod transport device 10 includes a rod feed mechanism 50 and a crane mechanism 60.

[0026] The rod feeding mechanism 50 includes a base machine 52 that is equipped with crawlers 51 and is thereby capable of moving in the direction of the excavator 70. The base machine 52 can be stopped at a fixed position by anchor legs 53. A rod slide member 54 is provided on the base machine 52. A plurality of rods 5 are placed in a line on the rod slide member 54, and are sequentially fed out toward the crane mechanism 60 by driving the rod slide member 54.

[0027] The crane mechanism 60 is attached to the front side of the rod feed mechanism 50. The crane mechanism 60 is formed by attaching a support 62 standing on an outrigger 61 to the front side of the rod feed mechanism 50, and an adjustment rod 63 that is vertically extendable and rotatable is provided on the upper part of the support 62. An arm 64 extending in the direction of the excavator 70 is attached to the adjustment rod 63. Therefore, the arm 64 can be adjusted in its vertical position and in its rotatable position. Although not shown in the figures, the arm 64 is provided with a slider that is movable in the length direction of the arm 64, and a hanging member 65 is attached to this slider, and the hook member 2 of the rod holding device 1 is hung from this hanging member 65. Therefore, the rod holding device 1 can be adjusted in its vertical position and rotation position, and its position in the approaching direction to the excavator 70 can be adjusted.

[0028] For such rod transport device 10, the rod holding device 1 is attached in a suspended state to the rod transport device 10 by suspending it from the suspension member 65 via the hook member 22 of the suspension member 2. This not only makes it possible to supply the rods 5 required for excavation to the excavator 70, but also makes it possible to collect the rods 5 used by the excavator 70, thereby enabling efficient handling of the rods 5. [Explanation of symbols]

[0029] 1 Rod holding device 2 Hanging parts 3 Magnetic holding member 4 Ratchet type retaining member 5 Rod 10 Rod transport device 20. Mainframe 21 Subframe 22 Hook member 30 Magnet Case 31 Switching lever 32 Fixing bolt 40 Clamping member 41 Ratchet Gear 42 Ratchet claw 43 Operating lever 44 Release lever 45 Lock spring 46 Mounting bracket 47 Support bracket 50 Rod feed mechanism 51 Crawler 52 Base Machine 53 Anchor Leg 54 Rod slide member 60 Crane Mechanism 61 Outrigger 62 Pillar 63 Adjustment rod 64 Arm 65 Suspension members 70 Excavator

Claims

1. A rod holding device in which a magnetic holding member that magnetically attracts and holds a rod and a ratchet holding member that clamps and holds the rod are assembled to a hanging member, The magnetic holding member includes a magnet case that houses an electromagnet that attracts and releases the rod, and a switching lever that switches the electromagnet on and off, The ratchet-type holding member is characterized in that it comprises a clamp member that is rotatable in both forward and reverse directions and clamps the rod between it and the magnetic holding member when rotated in the forward direction, a ratchet gear that can rotate together with the rotation of the clamp member, a ratchet pawl that can be engaged and disengaged with the ratchet gear and engages with the ratchet gear to lock rotation of the gear in the reverse direction, an operating lever that rotates the clamp member, a release lever that releases the ratchet pawl from engagement with the ratchet gear, and a lock spring that urges the ratchet pawl in the direction of engaging with the ratchet gear.

2. 2. The rod holding device of claim 1, wherein the ratchet type holding member is attached to the hanging member such that the clamp member is in a side-by-side position below the magnet case.

3. 2. The rod holding device according to claim 1, wherein the clamp member clamps the rod from a lower side of the magnet case by rotating in the positive direction.

4. a rod feeding mechanism for sequentially feeding a plurality of rods; a crane mechanism that is vertically extendable and rotatable and is disposed at the end of the feed of the rod feed mechanism; A rod holding device according to any one of claims 1 to 3, A rod transport device, characterized in that a hanging member of said rod holding device is attached in a hanging state to said crane mechanism.

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