Self-service slip clamping device for fixing drill pipe column

Abstract

The invention discloses a slip clamping device for self-service fixing of a drill rod pipe column, and relates to the technical field of pipe column clamping, and the slip clamping device is characterized by comprising a base and a telescopic assembly, fixing pieces are fixedly connected to the two sides of the base, and a lever shaft is fixedly connected to the bottom of the telescopic assembly; the telescopic assembly is movably connected with the fixing piece through a lever shaft, a first clamping piece is fixedly connected to the top of the base, and a second clamping piece is arranged at the end, close to the first clamping piece, of the telescopic assembly. According to the invention, the drill rod or other tubular parts can be conveniently fixed and detached.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe string clamping, and more particularly to a self-service slip clamping device for fixing a drill pipe string. Background Art

[0002] Geological prospecting is not only the forerunner of economic development, but also the cornerstone of national strategic security, scientific and technological progress, and ecological civilization. With the continuous development of science and the continuous progress of society, people are paying more and more attention to the exploration of the earth. The exploration and research of minerals are important exploration projects. In the exploration process, the application of exploration equipment is indispensable.

[0003] In order to conduct rock testing and analysis, it is usually necessary to drill and sample with a geological drill pipe. After sampling, the drilled samples need to be removed for testing and analysis. However, when removing the drill pipe, two free pliers are required: one for fixing and one for removing. This is very inconvenient. In view of this, the inventors have proposed a self-service slip clamping device for fixing the drill pipe string. Summary of the Invention

[0004] The purpose of the present invention is to provide a self-service slip clamping device for fixing a drill pipe column, which is used for fixing the drill pipe and is convenient for disassembling and taking out the drill pipe.

[0005] The above technical purpose of the present invention is achieved through the following technical solutions: a self-service slip clamping device for fixing a drill pipe column, comprising a base and a telescopic assembly, wherein fixing parts are fixedly connected on both sides of the base, a lever shaft is fixedly connected to the bottom of the telescopic assembly, and the telescopic assembly is movably connected to the fixing part through the lever shaft, a first clamping part is fixedly connected to the top of the base, and a second clamping part is provided at one end of the telescopic assembly close to the first clamping part.

[0006] The present invention is further configured such that: the telescopic assembly is rotatably connected to the fixing member via a lever shaft.

[0007] The present invention is further configured such that tooth plates are detachably connected to the inner sides of the first clamping member and the second clamping member.

[0008] The present invention is further configured such that tooth plates are fixedly connected to the inner sides of the first clamping member and the second clamping member.

[0009] The present invention is further configured as follows: the telescopic assembly includes a cylinder and a first square frame, one end of the first square frame is rotatably connected to the cylinder, and the other end is open to form an internal cavity, the cylinder is fixedly connected to a screw rod inside the first square frame, the screw rod is threadedly connected to a nut, the end of the nut away from the cylinder is fixedly connected to a second square frame, the second square frame is movably connected to the first square frame, and the second square frame is fixedly connected to the second clamping member.

[0010] The present invention is further configured such that an included angle A between the first clamping member and the base is less than 90° and greater than or equal to 85°.

[0011] The present invention is further configured such that the angle A between the first clamping member and the base is 87°.

[0012] The present invention is further configured as follows: a circular hole is formed at one end of the cylinder away from the first clamping member, and the cylinder is movably connected to a rotating rod.

[0013] The present invention is further configured such that limiting rings are provided on both sides of the connection between the cylinder and the first square frame.

[0014] The present invention is further configured such that: the base is U-shaped steel.

[0015] In summary, the present invention has the following beneficial effects: it is easy to fix and disassemble tubular parts, specifically, the drill rod or other tubular parts are placed between the first clamping part and the second clamping part, and then the rotating rod is rotated to make the first clamping part and the second clamping part close to each other, and the telescopic assembly (the second clamping part) and the first clamping part fix the drill rod or other tubular parts. After fixing, the drill rod or other tubular parts can be disassembled. After disassembly, the drill rod or other tubular parts can be taken out by simply lifting it up. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional rendering of a self-service slip clamping device for fixing a drill pipe string according to an embodiment of the present invention;

[0017] Figure 2 This is a left side view of a self-service slip clamping device for fixing a drill pipe string according to an embodiment of the present invention;

[0018] Figure 3 1 is a cross-sectional view of an AA section of a self-service slip clamping device for fixing a drill pipe string according to an embodiment of the present invention.

[0019] In the figure: 1. Base; 2. Fixing member; 3. Lever shaft; 4. Telescopic assembly; 5. First clamping member; 6. Second clamping member; 7. Tooth plate; 401. Cylinder; 402. First square frame; 403. Limiting ring; 404. Second square frame; 405. Screw; 406. Round hole; 407. Rotating rod; 408. Nut; A. Angle between the first clamping member and the base (the angle on the side away from the rotating rod). DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example:

[0022] A self-service slip clamping device for fixing a drill pipe string, such as Figure 1 、 Figure 2 and Figure 3 As shown, it includes a base 1 and a telescopic assembly 4. Fixing members 2 are fixedly connected to both sides of the base 1. A lever shaft 3 is fixedly connected to the bottom of the telescopic assembly 4. The telescopic assembly 4 is movably connected to the fixing members 2 via the lever shaft 3. A first clamping member 5 is fixedly connected to the top of the base 1. A second clamping member 6 is provided at the end of the telescopic assembly 4 near the first clamping member 5. The base 1 is made of U-shaped steel, which helps reduce the overall weight of the device and reduces physical exertion for workers during field surveys.

[0023] In this embodiment, the telescopic assembly 4 is rotatably connected to the fixing member 2 via the lever shaft 3 .

[0024] During the gripping of the drill pipe / tubing string, the sharp teeth can wear and polish due to high-frequency friction, resulting in unstable clamping. In this embodiment, a tooth plate 7 is detachably connected to the inner sides of the first and second clamping members 5 and 6. This detachable connection can be achieved by center-drilled screw fixation, snap-fit ​​connection, or other methods. These detachable connection methods are known in the art and will not be described in detail in this disclosure. Furthermore, the first and second clamping members 5 and 6 can also be fixedly connected to the tooth plate 7, such as by welding. This type of fixed connection method is known in the art and will not be described in detail in this disclosure.

[0025] In this embodiment, the telescopic assembly 4 includes a cylinder 401 and a first square frame 402. One end of the first square frame 402 is rotatably connected to the cylinder 401, and the other end is open to form an internal cavity. The cylinder 401 is fixedly connected to a screw rod 405 inside the first square frame 402. The screw rod 405 is threadedly connected to a nut 408. The end of the nut 408 away from the cylinder 401 is fixedly connected to a second square frame 404. The second square frame 404 is movably connected to the first square frame 402, and the second square frame 404 is fixedly connected to the second clamping member 6.

[0026] In this embodiment, the angle A between the first clamping member 5 and the base 1 is less than 90° and greater than or equal to 85°. After multiple tests, the inventor found that the angle A can be fixed to the clamped pipe in the range of less than 90° and greater than or equal to 85°. Without rotating the screw 405, the pipe can be removed by lifting it upwards. After multiple tests, the inventor found that the optimal angle A between the first clamping member 5 and the base 1 in this embodiment is 87°. At 87°, the clamped pipe can be fixed and the pipe can be removed with less effort. When the angle A is greater than or equal to 87°, it takes a lot of effort to lift the pipe upwards. When the angle A is less than 87°, the degree of fixation is not very strong compared to when the angle is greater than 87°.

[0027] In this embodiment, a circular hole 406 is formed at one end of the cylinder 401 away from the first clamping member 5, and the cylinder 401 is movably connected to a rotating rod 407. The ends of the rotating rod 407 can be flattened to increase the diameter to prevent it from slipping through the circular hole 406.

[0028] In this embodiment, limiting rings 403 are provided on both sides of the connection between the cylinder 401 and the first square frame 402 .

[0029] Usage process and working principle:

[0030] When in use, first place the base on a flat ground, first rotate the rotating rod to separate the first clamping member and the second clamping member, put the drill rod or other tubular member between the first clamping member and the second clamping member, and then rotate the rotating rod to bring the first clamping member and the second clamping member closer. The telescopic assembly (second clamping member) fixes the drill rod or other tubular member with the cooperation of the lever shaft and the first clamping member. After fixing, the drill rod or other tubular member can be disassembled. After disassembly, just lift it up to break the force balance between the lever shaft, the telescopic assembly (second clamping member) and the first clamping member (base), and take out the drill rod or other tubular member.

[0031] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A self-service slip clamping device for fixing a drill pipe string, characterized by: It includes a base and a telescopic component, wherein fixing parts are fixedly connected on both sides of the base, a lever shaft is fixedly connected to the bottom of the telescopic component, the telescopic component is movably connected to the fixing part through the lever shaft, a first clamping part is fixedly connected to the top of the base, and a second clamping part is provided at one end of the telescopic component close to the first clamping part.

2. The self-service slip clamping device for fixing a drill pipe string according to claim 1, characterized in that: The telescopic assembly is rotatably connected to the fixing member via a lever shaft.

3. The self-service slip clamping device for fixing a drill pipe string according to claim 1, characterized in that: The first clamping member and the second clamping member have tooth plates detachably connected to their inner sides.

4. The self-service slip clamping device for fixing a drill pipe string according to claim 1, characterized in that: A toothed plate is fixedly connected to the inner sides of the first clamping member and the second clamping member.

5. The self-service slip clamping device for fixing a drill pipe string according to claim 1, characterized in that: The telescopic assembly includes a cylinder and a first square frame, one end of the first square frame is rotatably connected to the cylinder, and the other end is open to form an internal cavity, the cylinder is fixedly connected to a screw rod inside the first square frame, the screw rod is threadedly connected to a nut, and the end of the nut away from the cylinder is fixedly connected to a second square frame, the second square frame is movably connected to the first square frame, and the second square frame is fixedly connected to the second clamping member.

6. The self-service slip clamping device for fixing a drill pipe string according to claim 1, characterized in that: An included angle A between the first clamping member and the base is less than 90° and greater than or equal to 85°.

7. The self-service slip clamping device for fixing a drill pipe string according to claim 6, characterized in that: An included angle A between the first clamping member and the base is 87°.

8. The self-service slip clamping device for fixing a drill pipe string according to claim 5, characterized in that: A circular hole is formed at one end of the cylinder away from the first clamping member, and the cylinder is movably connected to a rotating rod.

9. The self-service slip clamping device for fixing a drill pipe string according to claim 5, characterized in that: Limiting rings are provided on both sides of the connection between the cylinder and the first square frame.

10. The self-service slip clamping device for fixing a drill pipe string according to claim 1, characterized in that: The base is U-shaped steel.

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