Quick-assembly clamping device for oil field drill bit assembly

Abstract

The utility model relates to the technical field of oil field drill bits, and discloses a quick-assembly clamping device for assembling an oil field drill bit, which comprises a clamping device, the clamping device comprises a shell, a clamping device and a clamping device, the clamping device is characterized in that an adjusting device is arranged on the clamping device, and the adjusting device comprises a two-way screw rod arranged in the shell; the sliding blocks are symmetrically arranged on the two-way screw rod; the moving rod is arranged on the sliding block; the rod body penetrates through the moving rod, and a clamping arm is arranged at the top end of the rod body; the spring is arranged outside the rod body; the electric telescopic rods are annularly distributed on the inner side wall of the shell; the connecting block is arranged at the top of the electric telescopic rod; and the fan-shaped sleeve rod is arranged on the connecting block. According to the clamping device, the handle is used for driving the two-way screw to rotate, the distance between the moving rods is reduced, the clamping arms support a drill bit, the electric telescopic rod is used for driving the fan-shaped sleeve rod to stretch out and draw back, and the lower half portion of the drill bit is clamped.

Description

Technical Field

[0001] The utility model relates to the technical field of oil field drill bits, in particular to a quick-install clamping device for assembling oil field drill bits. Background Art

[0002] The roller drill bit is the most widely used oil drilling bit. When the roller drill bit is working, the cutting teeth contact the bottom of the well alternately, the rock breaking torque is small, the contact area between the cutting teeth and the bottom of the well is small, the specific pressure is high, and it is easy to cut into the formation; the total length of the working edge is large, so the wear is relatively reduced. The roller drill bit can adapt to a variety of formations from soft to hard. At present, the roller drill bit can be divided into single roller drill bit, three roller drill bit and assembled multi-roller drill bit according to the number of rollers. When installing it on the outer end of the connecting device, it needs to be limited and fixed by a clamping device.

[0003] According to the Chinese New Utility Model Publication CN217669059U, a quick-release clamping device for assembling an oilfield drill bit is disclosed. When the device is used, the bottom of the movable rod is first pressed to open the movable rod, and then the rotating block can be rotated by using the rotating piece to adjust the movable connecting rod. Then, the pull ring is pulled, and the pull rope connected to the pull ring will pull the clamping plate, one end of the telescopic rod will shrink, the spring will be squeezed, and then the drill bit will be placed inside the shell, the pull ring is released, the clamping plate is reset, and the drill bit is squeezed and clamped.

[0004] However, when the device is in use, the pull ring is pulled to control the pull rope to pull the clamping plate, and the spring force is used to reset the clamping plate to clamp the drill bit. However, in actual use, the spring force needs to be consistent with the gravity borne by the drill bit mass to ensure the clamping force of the clamping plate. Drill bits are of different models and masses. A drill bit with a larger mass has a larger mass. Even if a spring with equal elastic force is replaced, the elastic force increases as the mass increases. Users with less strength will not be able to pull the pull rope under the action of the elastic force, resulting in the device being unusable. In order to solve this problem, we propose a quick-release clamping device for assembling oilfield drill bits. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the shortcomings of the prior art, the utility model provides a quick-release clamping device for assembling oilfield drill bits, which has the advantage of being able to easily and labor-savingly adjust the clamping device to clamp the drill bit, and solves the problem that the elastic force of the spring is too large when replacing the drill bit, and the user is unable to pull it due to lack of strength.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a quick-install clamping device for assembling an oilfield drill bit, comprising a clamping device, wherein the clamping device comprises:

[0009] a housing having a drill bit disposed therein;

[0010] The feature is that the clamping device is provided with an adjusting device, and the adjusting device comprises:

[0011] A bidirectional screw is arranged inside the housing;

[0012] A slider is symmetrically arranged on the bidirectional screw;

[0013] A moving rod, arranged on the sliding block;

[0014] A rod body is provided on the moving rod through and has a clamping arm at the top;

[0015] A spring, arranged outside the rod body;

[0016] An electric telescopic rod is annularly distributed on the inner side wall of the housing;

[0017] A connecting block is arranged on the top of the electric telescopic rod;

[0018] The fan-shaped sleeve rod is arranged on the connecting block.

[0019] Preferably, the bidirectional screw passes through the housing, and a bearing is provided at the penetration point.

[0020] Preferably, the bidirectional screw passes through the housing and is provided with a handle at one end, the handle is threadedly connected to the bidirectional screw, and the other side is provided with a butterfly bolt, the butterfly bolt is threadedly connected to the bidirectional screw.

[0021] Preferably, the slider is threadedly connected to the bidirectional screw, and the slider is slidably connected to the inner wall of the shell, and the outer wall of the slider is fixedly connected to the moving rod.

[0022] Preferably, the movable rod is provided with an empty groove for cooperating with the movement of the rod body.

[0023] Preferably, limit blocks are symmetrically arranged on both sides of the top end of the rod body, one end of the spring is fixedly connected to the clamp arm, and the other end is fixedly connected to the outer side wall of the moving rod.

[0024] Preferably, the bottom of the fan-shaped sleeve rod is fixedly connected to the top of the connecting block, and the bottom of the connecting block is fixedly connected to the electric telescopic rod.

[0025] (III) Beneficial effects

[0026] Compared with the prior art, the utility model provides a quick-install clamping device for assembling an oilfield drill bit, which has the following beneficial effects:

[0027] 1. The clamping device uses a handle to drive the bidirectional screw to rotate, so that the slider moves in opposite directions to drive the moving rod to move, and the distance between the moving rods is reduced, so that the clamping arm on the moving rod clamps the drill bit. The rod body on the moving rod compresses the spring, which provides a buffering effect for the vibration of the drill bit when it shakes under the action of the spring elastic force, thereby improving the stability of the entire device.

[0028] 2. The clamping device uses an electric telescopic rod to drive the fan-shaped sleeve rod to extend and retract to support the lower half of the drill bit, thereby further improving the stability of the entire device. At the same time, the entire device is connected by threads, which is convenient for quick disassembly and assembly, and is simple and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model;

[0030] Figure 2 It is a schematic diagram of the top view of the clamping assembly in the utility model;

[0031] Figure 3 It is a schematic diagram of the top view structure of the support assembly in the utility model.

[0032] In the figure:

[0033] 1. Clamping device; 11. Housing; 12. Clamping arm;

[0034] 2. Adjustment device; 21. Bidirectional screw; 211. Handle; 212. Butterfly bolt; 22. Slider; 23. Moving rod; 24. Rod body; 241. Limit block; 25. Spring; 26. Electric telescopic rod; 261. Connecting block; 27. Fan-shaped sleeve rod. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] Example

[0037] See also Figure 1-3A quick-install clamping device for assembling an oilfield drill bit comprises a clamping device 1, wherein the clamping device 1 comprises: a shell 11, wherein a drill bit is arranged inside the shell; the feature is that: an adjusting device 2 is arranged on the clamping device 1, wherein the adjusting device 2 comprises: a bidirectional screw 21, which is arranged inside the shell 11; a slider 22, which is symmetrically arranged on the bidirectional screw 21; a moving rod 23, which is arranged on the slider 22; a rod body 24, which is arranged through the moving rod 23, and a clamping arm 12 is arranged on the top of the rod body 24; a spring 25, which is arranged outside the rod body 24; an electric telescopic rod 26, which is distributed in an annular manner on the inner side wall of the shell 11; a connecting block 261, which is arranged on the top of the electric telescopic rod 26; and a fan-shaped sleeve rod 27, which is arranged on the connecting block 261. When using the clamping device 1, the drill bit is placed inside the housing 11. The bidirectional screw 21 is arranged near the inner wall of the housing 11 and will not cause any obstruction to the drill bit. The bidirectional screw 21 is rotated, and the bidirectional screw 21 drives the slider 22 to move in opposite directions. The movement of the slider 22 causes the moving rod 23 to move in opposite directions as well, so that the rod body 24 on the moving rod 23 drives the clamping arm 12 to clamp the drill bit. At the same time, the spring 25 on the rod body 24 has a buffering effect on the vibration of the drill bit when it is working. The electric telescopic rod 26 is used to drive the fan-shaped sleeve rod 27 to extend and retract, thereby supporting the bottom of the drill bit according to the diameter of the drill bit, thereby improving the stability of the entire device.

[0038] The bidirectional screw 21 passes through the housing 11, and a bearing is provided at the penetration point. The bidirectional screw 21 passes through the housing 11 and is provided with a handle 211 at one end, and the handle 211 is threadedly connected to the bidirectional screw 21, and a butterfly bolt 212 is provided on the other side, and the butterfly bolt 212 is threadedly connected to the bidirectional screw 21. The slider 22 is threadedly connected to the bidirectional screw 21, and the slider 22 is slidably connected to the inner wall of the housing 11, and the outer wall of the slider 22 is fixedly connected to the moving rod 23. The moving rod 23 is provided with an empty groove for cooperating with the movement of the rod body 24. Limiting blocks 241 are symmetrically provided on both sides of the top of the rod body 24, and one end of the spring 25 is fixedly connected to the clamp arm 12, and the other end is fixedly connected to the outer wall of the moving rod 23. The two ends of the bidirectional screw 214 penetrate the housing 11, and bearings are provided at the penetration points. A handle 211 is threadedly connected to the penetration point at one end. Turning the handle 211 can drive the bidirectional screw 214 to rotate. A butterfly bolt 212 is provided at the other end. The butterfly bolt 212 is convenient for the user to manually rotate. After tightening, the rotation of the bidirectional screw 214 can be restricted. The slider 22 is threadedly connected to the bidirectional screw 21 and is slidably connected to the inner wall of the housing 11. Therefore, the rotation of the bidirectional screw 21 can drive the slider 22 to move. The slider 22 is fixedly connected to the moving rod 23, and the moving rod 23 is provided with a mating rod 24 to move. The spring 25 is sleeved on the outside of the rod body 24 and one end is fixedly connected to the outer wall of the moving rod 23, and the other end is fixedly connected to the outer wall of the clamping arm 12. Therefore, when the clamping arm 12 clamps the drill bit, it is affected by the shaking of the drill bit and squeezes the spring 25. Under the elastic force of the spring 25, it provides a buffering effect for the shaking of the drill bit. At the same time, the limit blocks 241 at both ends of the bottom of the rod body 24 can prevent the rod body 24 from falling off due to excessive movement. The various components cooperate to quickly clamp the drill bit, and most of the device is threaded, so it is quick and convenient to disassemble and assemble, thereby improving the portability of the entire device.

[0039] The bottom of the fan-shaped sleeve rod 27 is fixedly connected to the top of the connecting block 261, and the bottom of the connecting block 261 is fixedly connected to the electric telescopic rod 26. A plurality of fan-shaped support plates are arranged inside the fan-shaped sleeve rod 27, and the plurality of support plates are interactively connected. The bottom of the connecting block 261 is fixedly connected to the top of the endmost support plate, and the bottom of the connecting block 261 is fixedly connected to the electric telescopic rod 26. Therefore, the electric telescopic rod 26 can pull out or push in the fan-shaped support plate when working, so as to adjust the support area according to the diameter of the drill bit, thereby improving the flexibility of the entire device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-install clamping device for assembling an oilfield drill bit, comprising a clamping device (1), wherein the clamping device (1) comprises: A housing (11) having a drill bit disposed therein; The invention is characterized in that: the clamping device (1) is provided with an adjusting device (2), and the adjusting device (2) comprises: A bidirectional screw (21) is disposed inside the housing (11); A slider (22) is symmetrically arranged on the bidirectional screw (21); A moving rod (23) is arranged on the slider (22); A rod body (24) is arranged through the moving rod (23), and a clamping arm (12) is arranged at the top end thereof; A spring (25) is arranged outside the rod body (24); An electric telescopic rod (26) is distributed in an annular manner on the inner wall of the housing (11); A connecting block (261) is arranged on the top of the electric telescopic rod (26); The fan-shaped sleeve rod (27) is arranged on the connecting block (261).

2. The quick-install clamping device for assembling an oilfield drill bit according to claim 1, characterized in that: The bidirectional screw (21) passes through the housing (11), and a bearing is provided at the penetration point.

3. The quick-install clamping device for assembling an oilfield drill bit according to claim 2, characterized in that: The bidirectional screw (21) passes through the housing (11), and one end of the housing (11) is provided with a handle (211), and the handle (211) is threadedly connected to the bidirectional screw (21), and the other end of the housing (11) is provided with a butterfly bolt (212), and the butterfly bolt (212) is threadedly connected to the bidirectional screw (21).

4. The quick-install clamping device for assembling an oilfield drill bit according to claim 3, characterized in that: The slider (22) and the bidirectional screw (21) are threadedly connected, and the slider (22) and the inner wall of the housing (11) are slidably connected, and the outer wall of the slider (22) and the moving rod (23) are fixedly connected.

5. The quick-install clamping device for assembling an oilfield drill bit according to claim 4, characterized in that: The moving rod (23) is provided with an empty slot for cooperating with the movement of the rod body (24).

6. The quick-install clamping device for assembling an oilfield drill bit according to claim 5, characterized in that: Limiting blocks (241) are symmetrically arranged on both sides of the top of the rod body (24); one end of the spring (25) is fixedly connected to the clamp arm (12), and the other end is fixedly connected to the outer side wall of the moving rod (23).

7. The quick-install clamping device for assembling an oilfield drill bit according to claim 1, characterized in that: The bottom of the fan-shaped sleeve rod (27) is fixedly connected to the top of the connecting block (261), and the bottom of the connecting block (261) is fixedly connected to the electric telescopic rod (26).

Images