Joint shaft for petroleum drilling connecting rod
By setting up reinforcement components and reinforcement sleeves on the joints for oil drilling connecting rods, combined with the cooperation of sliders, reinforcement rods and guide blocks, the problem of loosening of existing joints due to vibration is solved, achieving higher connection strength and convenient disassembly process.
Patent Information
- Application Number
- CN202421424609.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-06-20
AI Technical Summary
Existing connecting rod joints are prone to loosening of threaded connections due to vibration during long-term use, reducing the connection strength.
A joint shaft for oil drilling connecting rods is designed. By setting a reinforcement assembly and reinforcement sleeve on the joint, the coupling is achieved by combining sliders, reinforcement rods and guide blocks. At the same time, the disassembly of the joints is facilitated by the arrangement of springs.
By setting the reinforcement assembly and reinforcement sleeve, the joint is avoided and the connection strength is improved. At the same time, the use of springs simplifies the joint removal process and is convenient for use.
Smart Images
Figure CN222949798U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of drill rod joints, and in particular relates to a joint shaft for a petroleum drilling connecting rod. Background Art
[0002] The main function of drill pipe joints is to connect drill pipes. Nowadays, there are more and more types of drill pipes, and the structures of drill pipes are also diverse according to needs. During the rotation process of the drill pipe, it not only requires a stable rotation speed and a large torque, but also requires good bending resistance. These not only have requirements for the drill pipe, but also for the joints of the drill pipe. The structure of the joint affects the work of the drill pipe, so the role of the joint is particularly important.
[0003] At present, most of the existing connecting rod joints are connected only by threads. When used for a long time, the threaded connection is easily loosened due to the vibration of the connecting rod, thereby reducing the connection strength. Utility Model Content
[0004] The utility model aims to provide a joint shaft for a connecting rod of a petroleum drilling, so as to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a joint shaft for a connecting rod for oil drilling, comprising a joint, a connecting rod, a reinforcement assembly and a reinforcement sleeve, one end of the joint is provided with a threaded groove, one end of the connecting rod is threadedly connected in the threaded groove, the reinforcement assembly comprises a slider, a reinforcement rod and a connecting block, one end of the joint close to the threaded groove is provided with a slide groove, the slider is slidably installed in the slide groove, one end of the reinforcement rod is located in the slider, the other end of the reinforcement rod slides through the threaded groove, an inclined guide hole is provided on the side wall of the slider, the upper end of the reinforcement rod is fixedly connected with a guide block, the guide block slides in the guide hole, and the surface of the connecting rod is provided with a reinforcement groove;
[0006] One end of the joint close to the thread groove is threadedly sleeved with a reinforcement sleeve, and the connecting block is fixedly connected to the surface of the sliding block.
[0007] As a preferred embodiment, there are three groups of reinforcement components, and the three groups of reinforcement components are evenly distributed in a ring shape on the side wall of the joint.
[0008] As a preferred implementation, a sliding hole is opened on the surface of the joint, and the connecting block slides through the sliding hole.
[0009] As a preferred implementation, a limiting ring is fixedly connected to the surface of the joint, and the limiting ring is arranged on one side of the sliding hole.
[0010] As a preferred implementation, a spring is fixedly connected inside the slide groove, and one end of the spring abuts against the slider.
[0011] As a preferred embodiment, an end of the joint close to the thread groove is provided with an external thread matched with the reinforcement sleeve.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] The joint shaft for the oil drilling connecting rod is provided with a reinforcement component and a reinforcement sleeve. When connecting, the reinforcement sleeve is firstly put on the joint, and then one end of the connecting rod is screwed into the thread groove, and then the reinforcement sleeve is rotated to gradually move the reinforcement sleeve toward the connecting block. When the reinforcement sleeve pushes the connecting block to slide in the sliding hole, the connecting block drives the slider to slide in the sliding groove. Under the cooperation of the guide hole and the guide block, the slider drives the reinforcement rod to be inserted into the reinforcement groove, so that the joint can be connected and reinforced, the joint is prevented from being loosened, and the connection strength is improved.
[0014] The joint shaft for the oil drilling connecting rod can rotate the reinforcement sleeve in the opposite direction through the setting of the spring when disassembly is required, so that the reinforcement sleeve gradually moves away from the connecting block. At this time, the spring will reset the slider, so that the slider drives the reinforcement rod to move out of the reinforcement groove, and the joint can be rotated to be removed, which is convenient for disassembly of the joint. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;
[0017] Figure 3 For this utility model Figure 2 A magnified view of the structure in the middle.
[0018] In the figure: 1. joint; 11. threaded groove; 12. slide groove; 13. slide hole; 14. limit ring; 2. connecting rod; 21. reinforcement groove; 3. reinforcement assembly; 31. slider; 32. reinforcement rod; 33. connecting block; 34. guide hole; 35. guide block; 36. spring; 4. reinforcement sleeve. DETAILED DESCRIPTION
[0019] The present invention will be further described below in conjunction with the embodiments.
[0020] The following examples are used to illustrate the present invention, but cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.
[0021] See also Figure 1-3 The utility model provides a joint shaft for a connecting rod of a petroleum drilling, comprising a joint 1, a connecting rod 2, a reinforcement component 3 and a reinforcement sleeve 4. A thread groove 11 is provided at one end of the joint 1, one end of the connecting rod 2 is threadedly connected in the thread groove 11, the reinforcement component 3 has three groups, and the three groups of reinforcement components 3 are evenly distributed on the side wall of the joint 1 in an annular manner. The reinforcement component 3 comprises a slider 31, a reinforcement rod 32 and a connecting block 33. A slide groove 12 is provided at one end of the joint 1 close to the thread groove 11, the slider 31 is slidably installed in the slide groove 12, a slide hole 13 is provided on the surface of the joint 1, the slide hole 13 is communicated with the slide groove 12, and the connecting block 33 is fixed. It is fixedly connected to the surface of the slider 31, and the connecting block 33 slides through the sliding hole 13. One end of the reinforcement rod 32 is located in the slider 31, and the other end of the reinforcement rod 32 slides through the thread groove 11. An inclined guide hole 34 is provided on the side wall of the slider 31. The upper end of the reinforcement rod 32 is fixedly connected to a guide block 35, and the guide block 35 slides in the guide hole 34. A reinforcement groove 21 is provided on the surface of the connecting rod 2, and a reinforcement sleeve 4 is threadedly sleeved on one end of the joint 1 close to the thread groove 11. An external thread matching the reinforcement sleeve 4 is provided on the end of the joint 1 close to the thread groove 11, and the surface of the reinforcement sleeve 4 is provided with anti-slip grooves.
[0022] Through the arrangement of the reinforcement component 3 and the reinforcement sleeve 4, when connecting, the reinforcement sleeve 4 is first put on the joint 1, and then one end of the connecting rod 2 is screwed into the threaded groove 11, and then the reinforcement sleeve 4 is rotated to make the reinforcement sleeve 4 gradually move toward the connecting block 33, so that when the reinforcement sleeve 4 pushes the connecting block 33 to slide in the sliding hole 13, the connecting block 33 will drive the slider 31 to slide in the sliding groove 12, and under the cooperation of the guide hole 34 and the guide block 35, the slider 31 will drive the reinforcement rod 32 to be inserted into the reinforcement groove 21, so that the joint 1 can be connected and reinforced to prevent the joint 1 from loosening and improve the connection strength.
[0023] Furthermore, a limiting ring 14 is fixedly connected to the surface of the joint 1 , and the limiting ring 14 is arranged on one side of the sliding hole 13 . Through the arrangement of the limiting ring 14 , when the reinforcing sleeve 4 is rotated, it can limit the connecting block 33 .
[0024] Reference Figure 3 A spring 36 is fixedly connected to the inside of the slide groove 12, and one end of the spring 36 abuts against the slider 31. Through the setting of the spring 36, when disassembly is required, the reinforcement sleeve 4 can be rotated in the opposite direction to make the reinforcement sleeve 4 gradually move away from the connecting block 33. At this time, the spring 36 will reset the slider 31, so that the slider 31 drives the reinforcement rod 32 to move out of the reinforcement groove 21, and the joint 1 can be rotated to remove it, which is convenient for disassembly of the joint 1.
[0025] The working principle and use process of the utility model are as follows: first, through the setting of the reinforcement component 3 and the reinforcement sleeve 4, when connecting, the reinforcement sleeve 4 is first put on the joint 1, and then one end of the connecting rod 2 is screwed into the threaded groove 11, and then the reinforcement sleeve 4 is rotated to make the reinforcement sleeve 4 gradually move toward the connecting block 33, so that when the reinforcement sleeve 4 pushes the connecting block 33 to slide in the sliding hole 13, the connecting block 33 will drive the slider 31 to slide in the sliding groove 12, and under the cooperation of the guide hole 34 and the guide block 35, the slider 31 will drive the reinforcement rod 32 to be inserted into the reinforcement groove 21, so that the joint 1 can be connected and reinforced, to prevent the joint 1 from loosening and improve the connection strength.
[0026] 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 joint shaft for a connecting rod for oil drilling, comprising a joint (1), a connecting rod (2), a reinforcement component (3) and a reinforcement sleeve (4), characterized in that: A thread groove (11) is provided at one end of the joint (1), one end of the connecting rod (2) is threadedly connected in the thread groove (11), the reinforcing assembly (3) comprises a slider (31), a reinforcing rod (32) and a connecting block (33), a sliding groove (12) is provided at one end of the joint (1) close to the thread groove (11), the slider (31) is slidably installed in the sliding groove (12), one end of the reinforcing rod (32) is located in the slider (31), the other end of the reinforcing rod (32) slides through the thread groove (11), an obliquely arranged guide hole (34) is provided on the side wall of the slider (31), a guide block (35) is fixedly connected to the upper end of the reinforcing rod (32), the guide block (35) slides in the guide hole (34), and a reinforcing groove (21) is provided on the surface of the connecting rod (2); One end of the joint (1) close to the thread groove (11) is threadedly sleeved with a reinforcing sleeve (4), and the connecting block (33) is fixedly connected to the surface of the sliding block (31).
2. The joint shaft for oil drilling connecting rod according to claim 1, characterized in that: There are three groups of the reinforcement components (3), and the three groups of the reinforcement components (3) are evenly distributed in a ring shape on the side wall of the joint (1).
3. The joint shaft for oil drilling connecting rod according to claim 1, characterized in that: A sliding hole (13) is provided on the surface of the joint (1), and the connecting block (33) slides through the sliding hole (13).
4. The joint shaft for oil drilling connecting rod according to claim 3, characterized in that: A limiting ring (14) is fixedly connected to the surface of the joint (1), and the limiting ring (14) is arranged on one side of the sliding hole (13).
5. The joint shaft for oil drilling connecting rod according to claim 1, characterized in that: A spring (36) is fixedly connected inside the sliding groove (12), and one end of the spring (36) is in contact with the sliding block (31).
6. The joint shaft for oil drilling connecting rod according to claim 1, characterized in that: An end of the joint (1) close to the thread groove (11) is provided with an external thread that matches the reinforcement sleeve (4).