A workover rig connection structure

Abstract

The utility model discloses a kind of well repair machine connecting structure, including fixed plate and screw sleeve, two described screw sleeve and two screw rod engage connection, two described screw sleeve top are equipped with fixed sleeve, two described retainer inner side are annular array and equipped with brush rod.This kind of well repair machine connecting structure, through the setting of fixed sleeve and retainer, two screw sleeves move on two rotating screw rods, two screw sleeves drive two pipelines to move in opposite direction through two fixed sleeves, two pipelines will pass through two retainers, two screw rods will drive two gear rings two to rotate when rotating, two gear rings two drive two retainers to rotate through two gear rings one, two retainers drive the brush rod of inner side to clean the outside of two pipelines, dust attached to the surface of two pipelines is cleaned, the opposite end of two pipelines passes through two retainers and is combined together, avoid more dust in the position of two pipeline connection, affect the effect of connection quality.

Description

Technical Field

[0001] This utility model belongs to the field of well workover machine technology, specifically a well workover machine connection structure. Background Technology

[0002] A workover rig is a downhole operation device used in the oil and gas industry. It is mainly used for the maintenance, repair, and modification of oil wells. It completes the lifting and lowering of drill strings through a hoisting system, rotates the drill strings through a rotary system, and circulates the workover fluid through a circulation system. It is widely used in oil well workover, sidetracking, and well completion operations and is an indispensable piece of equipment in petroleum engineering. The workover rig's circulation system requires connecting pipelines to circulate the workover fluid. The workover pump is connected to the surface manifold through pipelines to circulate the workover fluid.

[0003] During storage, dust and other impurities easily adhere to the surface of pipes. When connecting two pipes, if there is a lot of dust on the surface of the connection end, it will directly affect the flange connection or welding quality. Dust may cause the flange sealing surface to be uneven, affecting the sealing performance and even causing leakage. It will also affect the flatness and cleanliness of the welding end face, resulting in defects such as slag inclusion and porosity in the weld, reducing the welding strength. Utility Model Content

[0004] The purpose of this utility model is to provide a well workover rig connection structure to solve the problem mentioned in the background art where there is a lot of dust on the surface of the two pipes when they are connected and fixed, which affects the connection quality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a well workover rig connection structure, including a fixing plate and screw sleeves, a fixing block welded to the top center of the fixing plate, screw rods movably installed on both sides of the fixing block, two screw sleeves meshing with two screw rods, a fixing sleeve installed on the top of each of the two screw sleeves, retainers movably installed on both sides of the fixing block above the two screw rods, and brush rods installed in a circular array on the inner side of each of the two retainers.

[0006] Preferably, a handwheel is installed at the opposite ends of the two lead screws, and the two lead screws are fixedly connected at opposite ends.

[0007] Preferably, the outer threads of the two lead screws are distributed in opposite directions.

[0008] Preferably, both of the screw sleeves are equipped with sliders at their bottoms, and two grooves are symmetrically opened on the top of the fixing plates on both sides of the fixing block, with the two sliders and the two grooves slidably connected.

[0009] Preferably, toothed ring 1 is installed on the outer side of each of the two cages, and toothed ring 2 is installed on the outer side of each of the two lead screws below the two cages, and the two toothed ring 2 are meshed with the two toothed ring 1.

[0010] Preferably, each of the two fixed sleeves has a screw hole at its top, and a screw rod is threaded onto the inner wall of each screw hole. A movable disc is installed on the top of each screw rod.

[0011] Preferably, a support frame is welded to the bottom of the fixing plate, and the bottom of the support frame has fixing holes arranged in a rectangular array.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This well-working rig connection structure, through the setting of fixed sleeves and retainers, allows two threaded sleeves to move on two rotating lead screws. The two threaded sleeves drive two pipes to move in opposite directions through the two fixed sleeves. The two pipes pass through the two retainers. When the two lead screws rotate, they drive two toothed rings to rotate. The two toothed rings drive the two retainers to rotate through the two toothed rings. The two retainers drive the inner brush rods to clean the outer sides of the two pipes, removing the dust adhering to the surface of the two pipes. The opposite ends of the two pipes pass through the two retainers and come together, avoiding excessive dust at the connection point of the two pipes, which would affect the connection quality. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention from a first angle;

[0015] Figure 2 This is a two-dimensional structural diagram of the present invention from a second angle;

[0016] Figure 3 This is a schematic diagram of the fixing sleeve and screw structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the retainer and brush rod structure of this utility model.

[0018] In the diagram: 1. Fixed plate; 2. Support frame; 3. Fixed hole; 4. Slide groove; 5. Slider; 6. Screw sleeve; 7. Handwheel; 8. Fixed sleeve; 9. Movable disc; 10. Lead screw; 11. Gear ring one; 12. Retainer; 13. Brush rod; 14. Fixed block; 15. Gear ring two; 16. Screw hole; 17. Screw. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a well workover rig connection structure, including a fixing plate 1 and screw sleeves 6. A fixing block 14 is welded to the top center of the fixing plate 1. Screws 10 are movably mounted on both sides of the fixing block 14. Handwheels 7 are installed at opposite ends of the two screws 10. The two screws 10 are fixedly connected at opposite ends. The two handwheels 7 can be used to rotate the two screws 10. When one screw 10 rotates, the other screw 10 will rotate synchronously. The two screw sleeves 6 are engaged with the two screws 10. The outer threads of the two screws 10 are in opposite directions. The distribution is such that when the two lead screws 10 rotate, the two threaded sleeves 6 can move synchronously in opposite directions on the two rotating lead screws 10. Each threaded sleeve 6 has a slider 5 installed at its bottom. The tops of the fixing plates 1 on both sides of the fixing block 14 have two symmetrically arranged sliding grooves 4. The two sliders 5 and the two sliding grooves 4 are slidably connected, and the two sliders 5 provide support for the two threaded sleeves 6. When the two threaded sleeves 6 move on the two lead screws 10, the two sliders 5 slide within the two sliding grooves 4 to prevent the two threaded sleeves 6 from shaking. Each threaded sleeve 6 has a fixing sleeve 8 installed at its top. Each of the fixed sleeves 8 has a screw hole 16 at its top. A screw rod 17 is threaded onto the inner wall of each screw hole 16. A movable disc 9 is mounted on the top of each screw rod 17, allowing the screw rod 17 to rotate within the screw holes 16. The screw rod 17 secures the pipe tightly inside the two fixed sleeves 8. Retainers 12 are movably mounted on both sides of the fixing block 14 above the two screw rods 10. Brush rods 13 are mounted in a circular array on the inner side of each retainer 12. Toothed rings 11 are mounted on the outer side of each retainer 12. Two toothed rings 15 are installed on the outer sides of the two lead screws 10 below the frame 12. The two toothed rings 15 are meshed with the two toothed rings 11. When the two lead screws 10 rotate, they will drive the two toothed rings 15 to rotate. The two toothed rings 15 drive the two retainers 12 to rotate through the two toothed rings 11. A support frame 2 is welded to the bottom of the fixed plate 1. The bottom of the support frame 2 has fixed holes 3 in a rectangular array. Through the fixed holes 3 of the two support frames 2, the support frame 2 can be fixed to the ground or the load-bearing structure using bolts or other tools. The support frame 2 provides support force to the fixed plate 1.

[0021] Working principle: After fixing the position of the fixing plate 1, pass the two pipes to be connected through the two fixing sleeves 8. Use the two movable discs 9 to rotate the two screws 17. The two screws 17 rotate and move within the screw holes 16, and extend into the two fixing sleeves 8. The two screws 17 press and fix the pipes inside the two fixing sleeves 8. Use the handwheel 7 on one side of the fixing plate 1 to rotate the lead screw 10 on one side. The two lead screws 10 will rotate synchronously, and the two threaded sleeves 6 move on the two rotating lead screws 10. The two threaded sleeves 6 pass through the two fixing sleeves 8. The two pipes move in opposite directions and pass through the two retainers 12. When the two lead screws 10 rotate, they drive the two toothed rings 15 to rotate. The two toothed rings 15 drive the two retainers 12 to rotate through the two toothed rings 11. The two retainers 12 drive the inner brush rods 13 to clean the outside of the two pipes and remove the dust attached to the surface of the two pipes. The opposite ends of the two pipes pass through the two retainers 12 and come together. The workers use welding machines or flanges to fix the two pipes together.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A well workover rig connection structure, comprising a fixing plate (1) and a threaded sleeve (6), characterized in that: A fixing block (14) is welded to the top center of the fixing plate (1). Screws (10) are movably installed on both sides of the fixing block (14). Two screw sleeves (6) are meshed with the two screws (10). Fixing sleeves (8) are installed on the top of the two screw sleeves (6). Retainers (12) are movably installed on both sides of the fixing block (14) above the two screws (10). Brush rods (13) are installed in a ring array on the inner side of the two retainers (12).

2. The well workover rig connection structure according to claim 1, characterized in that: Handwheels (7) are installed at opposite ends of the two lead screws (10), and the two lead screws (10) are fixedly connected at opposite ends.

3. The well workover rig connection structure according to claim 1, characterized in that: The outer threads of the two lead screws (10) are distributed in opposite directions.

4. The well workover rig connection structure according to claim 1, characterized in that: Both of the screw sleeves (6) are equipped with sliders (5) at the bottom. The top of the fixing plates (1) on both sides of the fixing block (14) has two symmetrical grooves (4). The two sliders (5) and the two grooves (4) are slidably connected.

5. The well workover rig connection structure according to claim 1, characterized in that: A toothed ring 1 (11) is installed on the outer side of each of the two retainers (12), and a toothed ring 2 (15) is installed on the outer side of each of the two lead screws (10) below the two retainers (12). The two toothed rings 2 (15) and the two toothed rings 1 (11) are meshed together.

6. The well workover rig connection structure according to claim 1, characterized in that: Both of the fixed sleeves (8) have screw holes (16) on their tops, and screw rods (17) are threaded onto the inner walls of the two screw holes (16). Movable discs (9) are installed on the tops of the two screw rods (17).

7. The well workover rig connection structure according to claim 1, characterized in that: The bottom of the fixing plate (1) is welded with a support frame (2), and the bottom of the support frame (2) has a rectangular array of fixing holes (3).

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