Quick-release type drill rod shackle device

Abstract

The utility model belongs to the technical field of mining machinery, and particularly discloses a quick-release drill rod shackle device which comprises a power head, a connecting cylinder and a shaft seat, and the connecting cylinder is in transmission connection with the outside of the power head; a bearing is arranged in the shaft seat, and a clamping seat is arranged on the inner side of the bearing; one end of the connecting cylinder is in transmission connection with the power head, and the other end is inserted into the clamping seat; a telescopic device is mounted on the shaft seat, and the other end of the telescopic device is fixedly connected to the power head; a guide groove is formed in the clamping seat, the guide groove obliquely extends up and down, a clamping block is slidably connected in the guide groove, and a limiting hole is formed in the connecting cylinder; the clamping block is slidably connected to the limiting hole and can extend to the inner side of the connecting cylinder; the telescopic device pushes the shaft seat together with the bearing and the clamping seat to move up and down, the clamping block moves relative to the limiting hole under the pushing of radial component force while moving relative to the guide groove, the clamping block extends to the inner side of the connecting cylinder, and a drill rod can be clamped through the clamping block; the loading and unloading efficiency is greatly improved, the device size is reduced, and cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of mining machinery, in particular to a quick-detachable drill rod shackle device. Background Art

[0002] There are two types of fully hydraulic rope coring drills based on the spindle (output shaft) of the power head. One type is a through-hole spindle, that is, the drill rod can be taken out or installed through the center hole of the spindle of the power head, and the drill rod is driven to work by loosening or clamping the chuck at the lower end of the spindle. In order to allow the drill rod to pass through the center of the spindle, the spindle must be thickened and the gears on the spindle must be enlarged, so the gearbox must also be made very large, which is bulky and costly. The other type is a spindle without a through-hole, and the drill rod is drilled directly at the lower end of the spindle. Although the gearbox can be made relatively small, which reduces costs and is more convenient to carry, it is inconvenient to load and unload the drill rod. When unloading the machine, the power head is first used with a screwdriver to screw on the drill rod in the well, and then the drill rod is lifted and unloaded. The disassembly must be repeated many times, which is inefficient and greatly reduces the service life of the drill rod.

[0003] The existing Chinese utility model patent with announcement number CN209457890U provides a quickly connectable drill tool joint, which includes a mechanical arm, a drill rod and a joint, wherein the left end face of the mechanical arm is fixedly connected to the drill rod, a first motor is fixedly connected to the inner side of the top end face of the drill rod, a threaded shaft is fixedly connected to the end of the main shaft of the first motor, and the threaded shaft is rotatably connected to the drill rod, a limit plate is spirally connected to the outer side of the threaded shaft, and the limit plate is slidably connected to the drill rod, a second motor is fixedly connected to the bottom end face of the limit plate, a fixed shaft is fixedly connected to the end of the main shaft of the second motor, and the fixed shaft is rotatably connected to the drill rod; the device has a complex structure, high cost and inconvenient maintenance. Utility Model Content

[0004] In view of the problems in the prior art that the drill rod is inconvenient to load and unload, the disassembly must be repeated many times, the efficiency is low, and the service life of the drill rod is reduced, a quick-release drill rod shackle device is proposed. The utility model provides the following technical solutions:

[0005] A quick-release drill pipe shackle device comprises a power head, a connecting tube and a shaft seat, wherein the power head is externally connected to the connecting tube; a bearing is arranged in the shaft seat, and a clamping seat is arranged on the inner side of the bearing; one end of the connecting tube is connected to the power head for transmission, and the other end is inserted into the inner side of the clamping seat; a telescopic device is installed on the shaft seat, and the other end of the telescopic device is fixedly connected to the power head; a guide groove is arranged on the clamping seat, and the guide groove is inclined and extended up and down, and a clamping block is slidably connected in the guide groove, and a limiting hole is arranged on the connecting tube, and the clamping block can be operated to be laterally slidably connected to the limiting hole, and can partially extend to the inner side of the connecting tube.

[0006] Preferably, the output shaft of the power head is threadedly connected to the connecting cylinder.

[0007] Preferably, when the clamping block is in the guide groove, the clamping block is always slidably connected to the limiting hole.

[0008] Preferably, the vertical cross-section of the clamping block is wedge-shaped.

[0009] Preferably, the inner diameter of the clamping block gradually decreases from top to bottom.

[0010] Preferably, the guide groove is a T-shaped groove.

[0011] Preferably, the bearing is a thrust angular bearing.

[0012] Preferably, end covers for limiting the position of the bearing are threadedly connected to the upper and lower sides of the shaft seat.

[0013] Preferably, the telescopic device is a hydraulic cylinder.

[0014] Preferably, 2-4 telescopic devices are arranged at equal intervals circumferentially on the axle seat.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The shaft seat together with the bearing and the clamping seat can be pushed up and down by the telescopic device, and the clamping block moves relative to the limit hole. The clamping block can be extended to the inside of the connecting tube, and the drill rod can be clamped by the clamping block. The operation is simple and the loading and unloading efficiency is greatly improved;

[0017] 2. The inner diameter of the clamping block gradually decreases from top to bottom. Therefore, under the action of gravity, when the clamping block is clamped, the drill rod will become tighter and tighter, which can prevent loosening;

[0018] 3. The thrust angle bearing is used to transmit axial thrust, making it easier for the shaft seat to drive the clamping seat to move. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0020] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model;

[0021] In the attached drawings, 1, power head; 11, second mounting seat; 2, telescopic device; 3, shaft seat; 31, first mounting seat; 4, bearing; 5, clamping seat; 51, guide groove; 6, clamping block; 7, connecting tube; 71, limiting hole; 8, lower end cover; 9, upper end cover. DETAILED DESCRIPTION

[0022] The directional words mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only referenced to the directions of the drawings. Therefore, the directional words used are used to illustrate rather than limit the invention of the utility model.

[0023] like Figure 1 and Figure 2 As shown, a quick-release drill pipe shackle device comprises a power head 1, a connecting tube 7 and a shaft seat 3, wherein the power head 1 is externally connected to the connecting tube 7 by transmission; a bearing 4 is arranged in the shaft seat 3, and a clamping seat 5 is arranged inside the bearing 4; one end of the connecting tube 7 is connected to the power head 1 by transmission, and the other end is plugged into the inner side of the clamping seat 5; a telescopic device 2 is installed on the shaft seat 3, and the other end of the telescopic device 2 is fixedly connected to the power head 1; a guide groove 51 is arranged on the clamping seat 5, and the guide groove 51 is extended up and down by tilting, and a clamping block 6 is slidably connected in the guide groove 51, and a limited position is arranged on the connecting tube 7 Hole 71, the limit block is a through hole; the clamping block 6 can be operated to be slidably connected to the limit hole 71 laterally, and can partially extend to the inside of the connecting tube 7; the shaft seat 3 together with the bearing 4 and the clamping seat 5 can be pushed up and down by the telescopic device 2, and the clamping block 6 moves relative to the guide groove 51. At the same time, the clamping block 6 moves relative to the limit hole 71 under the push of the radial component force, and the clamping block 6 can extend to the inside of the connecting tube 7, so the drill rod can be clamped by the clamping block 6; the drill rod can be quickly disassembled and assembled by only controlling the telescopic device 2, thereby greatly improving the loading and unloading efficiency, and the power head 1 can also be made smaller in size to reduce costs.

[0024] Specifically, the output shaft of the power head 1 is threadedly connected to the connecting tube 7 , and the thread position of the connecting tube 7 can be selected as an internal thread or an external thread according to the situation of the power head 1 .

[0025] Specifically, when the clamping block 6 is in the guide groove 51, the clamping block 6 is always slidably connected to the limiting hole 71, so that the clamping block 6 in the guide groove 51 is always controllable, and it is also convenient for the disassembly and assembly of the clamping block 6; during installation, first install the clamping block 6 in the limiting hole 71, and pull the clamping block 6 out to a certain height so that the clamping block 6 is aligned with the guide groove 51, and then push the connecting tube 7 from bottom to top to insert the clamping block 6 into the guide groove 51; if the clamping block 6 is in the extreme position in the guide groove 51, the clamping block 6 can be disengaged from the limiting hole 71, and the clamping block 6 is not easy to be disassembled along with the connecting tube 7.

[0026] Specifically, the vertical cross-section of the clamping block 6 is wedge-shaped, the guide groove 51 is a T-shaped groove, and the clamping block 6 is also T-shaped; the inner diameter of the guide groove 51 increases from top to bottom, and when the telescopic device 2 is pushed away from the shaft seat 3, the clamping block 6 moves upward relative to the guide groove 51 and clamps the drill rod; the inner diameter of the clamping block 6 gradually decreases from top to bottom. Therefore, under the action of gravity, when the clamping block 6 is clamped, the drill rod will fall tighter and tighter, which can play a role in preventing loosening.

[0027] Specifically, the bearing 4 is a thrust angle bearing 4, which can transmit axial thrust to facilitate the shaft seat 3 to drive the clamping seat 5 to move.

[0028] Specifically, a lower end cover 8 is threadedly connected to the lower side of the shaft seat 3 , and an upper end cover 9 is threadedly connected to the upper side of the shaft seat 3 . Both the upper end cover 9 and the lower end cover 8 are through-type cylindrical structures for limiting the position of the bearing 4 .

[0029] Specifically, the telescopic device 2 is a hydraulic cylinder, a first mounting seat 31 is fixedly connected to the shaft seat 3, a second mounting seat 11 is fixedly connected to the power head 1, the hydraulic cylinder is mounted on the first mounting seat 31, and the output end is connected to the power head 1 through the second mounting seat 11.

[0030] Specifically, two telescopic devices 2 are arranged on the shaft seat 3 at equal intervals in the circumferential direction, and four clamping blocks 6 and limiting holes 71 are arranged at equal intervals in the circumferential direction, so as to improve stability.

Claims

1. A quick-release drill pipe shackle device, characterized in that: The invention comprises a power head (1), a connecting tube (7) and a shaft seat (3), wherein the power head (1) is externally connected to the connecting tube (7); a bearing (4) is arranged inside the shaft seat (3), and a clamping seat (5) is arranged inside the bearing (4); one end of the connecting tube (7) is connected to the power head (1) in a transmission manner, and the other end is plugged into the inside of the clamping seat (5); a telescopic device (2) is installed on the shaft seat (3), and the other end of the telescopic device (2) is fixedly connected to the power head (1); a guide groove (51) is arranged on the clamping seat (5), and the guide groove (51) is inclined and extended upward and downward, and a clamping block (6) is slidably connected in the guide groove (51); a limiting hole (71) is arranged on the connecting tube (7), and the clamping block (6) can be operated to be laterally slidably connected to the limiting hole (71) and can partially extend to the inside of the connecting tube (7).

2. The quick-release drill pipe shackle device according to claim 1, characterized in that: The output shaft of the power head (1) is threadedly connected to the connecting tube (7).

3. The quick-release drill pipe shackle device according to claim 1, characterized in that: When the clamping block (6) is in the guide groove (51), the clamping block (6) is always slidably connected to the limiting hole (71).

4. The quick-release drill pipe shackle device according to claim 1, characterized in that: The vertical cross section of the clamping block (6) is wedge-shaped.

5. The quick-release drill pipe shackle device according to any one of claims 1 to 4, characterized in that: The inner diameter of the clamping block (6) gradually decreases from top to bottom.

6. The quick-release drill pipe shackle device according to claim 1, characterized in that: The guide groove (51) is a T-shaped groove.

7. The quick-release drill pipe shackle device according to claim 1, characterized in that: The bearing (4) is a thrust angle bearing (4).

8. The quick-release drill pipe shackle device according to claim 1, characterized in that: The shaft seat (3) is threadedly connected to end covers on the upper and lower sides thereof for limiting the position of the bearing (4).

9. The quick-release drill pipe shackle device according to claim 1, characterized in that: The telescopic device (2) is a hydraulic cylinder.

10. The quick-release drill pipe shackle device according to claim 9, characterized in that: Two to four telescopic devices (2) are arranged at equal intervals in the circumferential direction on the axle seat (3).

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