Self-alignment type oil pipe lining pipe and lining pipe drawing device
Through the self-adjusting medium-sized oil pipe liner pulling device, the bump-groove coordination of the drive screw and the liner clamping block is solved, and the problem of difficulty in pulling the liner pipe is achieved is achieved, which is stable clamping and efficient pulling of the liner pipe, extending the service life of the liner pipe.
Patent Information
- Application Number
- CN202421908921.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-08-08
AI Technical Summary
It is difficult for existing pulling devices to effectively pull the inner liner from the oil pipe because the inner liner is tightly fitted with the oil pipe and the outer wall is relatively smooth.
The self-adjusted medium-sized oil pipe liner pulling device is used, and the transmission screw and the liner pipe clamp are driven by a servo motor. The bumps of the clamping pipe head are matched with the grooves to achieve firm clamping of the liner pipe, and the liner pipe is pulled out from the oil pipe by pulling and pulling wire.
It improves the convenience and stability of the liner tube being pulled out from the oil tube, prevents the liner tube from sliding down during the drawing process, and extends the service life of the liner tube.
Smart Images
Figure CN223175643U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tubing inner liner drawing, in particular to a self-aligning tubing inner liner and an inner liner drawing device. Background Technique
[0002] In the process of oil extraction, it is usually necessary to use tubing to transport the oil underground. Since the tubing is made of metal, it will be corroded during daily use, thus reducing the service life of the tubing. Therefore, it is necessary to install an inner liner in the tubing to protect the tubing. The inner liner will be corroded and worn during daily use, and it is necessary to regularly use a drawing device to take out the inner liner from the tubing for replacement;
[0003] Defects of traditional drawing devices: Most of the existing drawing devices take out the inner liner from the tubing by clamping the outer wall of the inner liner for drawing. However, since the outer wall of the inner liner usually fits tightly with the inner wall of the tubing and the outer wall of the inner liner is relatively smooth, it is inconvenient to pull out the inner liner from the tubing.
[0004] Therefore, there is an urgent need for an inner liner and a drawing device that can solve the above problems. Content of the Utility Model
[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and solve the problem that most of the existing drawing devices are inconvenient to pull out the inner liner from the tubing because the inner liner fits tightly with the tubing and the outer wall of the inner liner is relatively smooth as mentioned in the above background technique.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: A self-aligning tubing inner liner drawing device, including a moving platform, a drawing take-up reel is installed at the top of the moving platform, and a drawing traction steel cable is fixedly installed on the surface of the drawing take-up reel. A limit baffle is fixedly installed at the top of the moving platform. The bottom end of the drawing traction steel cable is fixedly connected with a lifting plate. A servo motor is fixedly installed at the top of the lifting plate, and an output gear is fixedly installed on the output shaft of the servo motor;
[0007] A limit slider is fixedly installed on the side of the lifting plate. A connecting rod is installed inside the lifting plate, and a transmission gear is fixedly installed on the surface of the connecting rod. Transmission screws are fixedly installed at both ends of the connecting rod, and an internally threaded slider is installed on the surface of the transmission screw. An inner liner clamp block is fixedly installed at the bottom end of the internally threaded slider.
[0008] Preferably, a push frame is fixedly installed on the left side of the moving platform, support columns are fixedly installed at the bottom of the moving platform, and moving wheels are installed at the bottom ends of the support columns. A limit lifting groove is fixedly installed inside the moving platform, and a group of rectangular hole grooves are opened inside the moving platform.
[0009] Preferably, a transmission shaft is fixedly installed on the side of the drawing and winding drum. One end of the transmission shaft is fixedly installed with a rotating tooth block, and a rotating rod is fixedly installed on the side of the rotating tooth block.
[0010] Preferably, a first limit frame is fixedly installed on the right side of the limit baffle. A limit block is installed inside the first limit frame. A sliding rod is fixedly installed at the bottom end of the limit block, and a return spring is installed on the surface of the sliding rod. A second limit frame is fixedly installed on the right side of the limit baffle.
[0011] Preferably, a set of circular through holes adapted to the size of the transmission shaft are opened inside the limit baffle. The rotating tooth block and the limit block are cooperating components. A set of rectangular slots adapted to the size of the limit block are opened inside the first limit frame. A set of circular slots adapted to the size of the sliding rod are opened inside the second limit frame.
[0012] Preferably, a set of circular screw holes adapted to the transmission screw are provided inside the internal thread slider. A set of rectangular protrusions are provided on the side of the inner lining pipe clamp block. A set of rectangular grooves adapted to the rectangular protrusions on the side of the inner lining pipe clamp block are provided on both sides of the surface of the pipe head.
[0013] The present utility model also provides a self-aligning inner lining pipe for an oil pipe, including: an inner lining pipe body. A pipe head is fixedly installed at the top end of the inner lining pipe body. The inner lining pipe body is installed at the bottom end of the lifting plate. A set of rectangular protrusions are provided on the side of the inner lining pipe clamp block. A set of rectangular grooves adapted to the rectangular protrusions on the side of the inner lining pipe clamp block are provided on both sides of the surface of the pipe head.
[0014] Compared with the prior art, the beneficial effects of the present utility model are:
[0015] 1. By providing a servo motor and inner lining pipe clamp blocks, the rotation of the servo motor causes the transmission screw to rotate. As the transmission screw rotates, the two inner lining pipe clamp blocks can approach each other. When the two inner lining pipe clamp blocks move to both sides of the pipe head, the pipe head is clamped by the inner lining pipe clamp blocks at the same time, which is convenient for pulling out the inner lining pipe body from the oil pipe;
[0016] 2. By providing protrusions on the side of the inner lining pipe clamp block and providing matching grooves on both sides of the pipe head, after inserting the protrusions on the side of the inner lining pipe clamp block into the grooves on the side of the pipe head, the pipe head can be firmly clamped in this way, so that the inner lining pipe can be clamped more firmly during the pulling process of the inner lining pipe, preventing the inner lining pipe from slipping during the pulling process. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 Shows the overall structural schematic diagram provided by the embodiment of the present utility model;
[0018] Figure 2Shows a schematic cross-sectional view of the overall structure provided according to an embodiment of the present utility model;
[0019] Figure 3 Shows a schematic structural view of a rotating tooth block and a limit clamping block provided according to an embodiment of the present utility model;
[0020] Figure 4 Shows a schematic structural view of an inner liner pipe body provided according to an embodiment of the present utility model;
[0021] Figure 5 Shows what is provided according to an embodiment of the present utility model Figure 2 Schematic structural view at position A in
[0022] Legend description:
[0023] 1. Moving platform; 101. Pushing frame; 102. Support column; 103. Moving wheel; 104. Limit lifting groove; 2. Drawing and winding drum; 201. Drawing traction steel cable; 202. Transmission shaft; 203. Rotating tooth block; 204. Rotating rod; 3. Limit baffle; 301. First limit frame; 302. Limit clamping block; 303. Sliding rod; 304. Return spring; 305. Second limit frame; 4. Lifting plate; 401. Servo motor; 402. Output gear; 403. Limit slider; 5. Connecting rod; 501. Transmission gear; 502. Transmission screw; 503. Internal thread slider; 504. Inner liner pipe clamping block; 6. Inner liner pipe body; 601. Pipe head. Detailed implementation manners
[0024] In order to be able to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the following further describes the present utility model in conjunction with the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0025] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the limitations of the specific embodiments disclosed in the following specification.
[0026] As Figures 1-5 shown, in an embodiment of the present utility model: A self-aligning type oil pipe inner liner pipe drawing device includes a moving platform 1.
[0027] During specific operations, a drawing and winding drum 2 is installed at the top of the mobile platform 1, and a drawing traction steel cable 201 is fixedly installed on the surface of the drawing and winding drum 2. A limit baffle 3 is fixedly installed at the top of the mobile platform 1. The bottom end of the drawing traction steel cable 201 is fixedly connected to a lifting plate 4. A servo motor 401 is fixedly installed at the top of the lifting plate 4, and an output gear 402 is fixedly installed on the output shaft of the servo motor 401;
[0028] A limit slider 403 is fixedly installed on the side of the lifting plate 4. A connecting rod 5 is installed inside the lifting plate 4, and a transmission gear 501 is fixedly installed on the surface of the connecting rod 5. Transmission screws 502 are fixedly installed at both ends of the connecting rod 5, and an internally threaded slider 503 is installed on the surface of the transmission screw 502. A lining pipe clamp block 504 is fixedly installed at the bottom end of the internally threaded slider 503.
[0029] Through the above technical solution, the rotation of the servo motor 401 is used to make the lining pipe clamp block 504 engage on both sides of the pipe head 601. After the lining pipe clamp block 504 firmly clamps the pipe head 601, the lining pipe body 6 can be pulled out of the oil pipe as the lifting plate 4 rises.
[0030] A push frame 101 is fixedly installed on the left side of the mobile platform 1. Support columns 102 are fixedly installed at the bottom of the mobile platform 1, and moving wheels 103 are installed at the bottom ends of the support columns 102. A limit lifting groove 104 is fixedly installed inside the mobile platform 1, and a group of rectangular through slots are opened inside the mobile platform 1.
[0031] A transmission shaft 202 is fixedly installed on the side of the drawing and winding drum 2. A rotating tooth block 203 is fixedly installed at one end of the transmission shaft 202, and a rotating rod 204 is fixedly installed on the side of the rotating tooth block 203.
[0032] Through the above technical solution, the rotation of the drawing and winding drum 2 can wind up the drawing traction steel cable 201. As the drawing traction steel cable 201 winds around the surface of the drawing and winding drum 2, the lifting plate 4 can be lifted.
[0033] A first limit frame 301 is fixedly installed on the right side of the limit baffle 3. A limit block 302 is installed inside the first limit frame 301. A sliding rod 303 is fixedly installed at the bottom end of the limit block 302, and a return spring 304 is installed on the surface of the sliding rod 303. A second limit frame 305 is fixedly installed on the right side of the limit baffle 3.
[0034] A group of circular through holes adapted to the size of the transmission shaft 202 are opened inside the limit baffle 3. The rotating tooth block 203 and the limit block 302 are mating components. A group of rectangular through slots adapted to the size of the limit block 302 are opened inside the first limit frame 301. A group of circular through holes adapted to the size of the sliding rod 303 are opened inside the second limit frame 305.
[0035] Through the above technical solution, the rotation of the drawing take-up reel 2 can be driven by the rotation of the rotating tooth block 203. At the same time, the limit block 302 has a limiting effect on the rotation of the rotating tooth block 203, which can prevent the lifting plate 4 from sliding down under its own gravity after the rotating rod 204 releases the rotating tooth block 203 and stops rotating.
[0036] A set of circular screw holes adapted to the transmission screw 502 are provided inside the internal thread slider 503. A set of rectangular protrusions are provided on the side of the inner lining pipe clamp block 504. A set of rectangular grooves adapted to the rectangular protrusions on the side of the inner lining pipe clamp block 504 are provided on both sides of the surface of the pipe head 601.
[0037] Through the above technical solution, the grooves provided on both sides of the pipe head 601 are matched with the protrusions provided on the side of the inner lining pipe clamp block 504. After the inner lining pipe clamp block 504 is clamped on both sides of the pipe head 601 in this way, the protrusions can be inserted into the grooves on the side of the pipe head 601, so that the pipe head 601 can be clamped and fixed more firmly, thereby avoiding the pipe head 601 falling off from the clamping of the inner lining pipe clamp block 504 during the drawing process.
[0038] The present utility model also provides a self-aligning oil pipe inner lining pipe, including an inner lining pipe body 6. A pipe head 601 is fixedly installed at the top of the inner lining pipe body 6. The inner lining pipe body 6 is installed at the bottom end of the lifting plate 4. A set of rectangular protrusions are provided on the side of the inner lining pipe clamp block 504. A set of rectangular grooves adapted to the rectangular protrusions on the side of the inner lining pipe clamp block 504 are provided on both sides of the surface of the pipe head 601.
[0039] In summary, the working principle of the present utility model is as follows: When it is necessary to pull out and replace the inner lining pipe in the oil pipe, first move the mobile platform 1 to directly above the inner lining pipe body 6. Rotate the output gear 402 by rotating the servo motor 401. As the output gear 402 rotates, the transmission gear 501 can be rotated. The rotation of the transmission gear 501 can drive the connecting rod 5 and the transmission screw 502 to rotate together. When the transmission screw 502 rotates, the internal thread slider 503 moves on its surface. When the internal thread slider 503 moves, the inner lining pipe clamp 504 also moves. Move the two groups of inner lining pipe clamps 504 towards the pipe head 601. At this time, the convex block on the side of the inner lining pipe clamp 504 can be inserted into the groove opened on the side of the pipe head 601. And as the inner lining pipe clamp 504 moves closer, the pipe head 601 can be clamped and fixed by using the two groups of inner lining pipe clamps 504. In this way, the pipe head 601 can be firmly clamped. Then rotate the rotating rod 204 to make the pulling and winding reel 2 rotate. As the pulling and winding reel 2 rotates, the pulling traction steel cable 201 can be wound up. At this time, the lifting plate 4 will be lifted. In this way, the inner lining pipe body 6 in the oil pipe can be pulled out therefrom.
[0040] The above is only the preferred embodiment of the present utility model, and it does not limit the present utility model in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model still belong to the protection scope of the technical solution of the present utility model.
Claims
1. A self-aligning inner lining pipe drawing device for oil pipes, comprising a moving platform, characterized in that: A drawing and retracting reel is installed at the top of the mobile platform, and a drawing traction steel cable is fixedly installed on the surface of the drawing and retracting reel. A limit baffle is fixedly installed at the top of the mobile platform. The bottom end of the drawing traction steel cable is fixedly connected to a lifting plate. A servo motor is fixedly installed at the top of the lifting plate, and an output gear is fixedly installed on the output shaft of the servo motor; A limit slider is fixedly installed on the side of the lifting plate. A connecting rod is installed inside the lifting plate, and a transmission gear is fixedly installed on the surface of the connecting rod. Transmission screws are fixedly installed at both ends of the connecting rod, and internal thread sliders are installed on the surfaces of the transmission screws. A lining pipe clamp block is fixedly installed at the bottom end of the internal thread slider.
2. The self-aligning type tubing liner drawing device according to claim 1, wherein: A pushing frame is fixedly installed on the left side of the mobile platform. Support columns are fixedly installed at the bottom end of the mobile platform, and moving wheels are installed at the bottom ends of the support columns. A limit lifting groove is fixedly installed inside the mobile platform, and a group of rectangular hole grooves are opened inside the mobile platform.
3. The self-aligning type tubing liner drawing device according to claim 1, characterized in that: A transmission shaft is fixedly installed on the side of the drawing and retracting reel. A rotating tooth block is fixedly installed at one end of the transmission shaft, and a rotating rod is fixedly installed on the side of the rotating tooth block.
4. The self-aligning type tubing liner drawing device according to claim 3, characterized in that: A first limit frame is fixedly installed on the right side of the limit baffle. A limit block is installed inside the first limit frame. A sliding rod is fixedly installed at the bottom end of the limit block, and a return spring is installed on the surface of the sliding rod. A second limit frame is fixedly installed on the right side of the limit baffle.
5. The self-aligning type tubing liner drawing device according to claim 4, characterized in that: A group of circular through holes adapted to the size of the transmission shaft are opened inside the limit baffle. The rotating tooth block and the limit block are cooperating components. A group of rectangular hole grooves adapted to the size of the limit block are opened inside the first limit frame. A group of circular hole grooves adapted to the size of the sliding rod are opened inside the second limit frame.
6. The self-aligning type oil pipe liner drawing device according to claim 1, characterized in that: A group of circular screw holes adapted to the transmission screw are provided inside the internal thread slider.
7. A self-aligning tubing liner, comprising the self-aligning tubing liner drawing device as described in claim 1 and the liner body, characterized in that: A pipe head is fixedly installed at the top end of the lining pipe body. The lining pipe body is installed at the bottom end of the lifting plate. A group of rectangular protrusions are opened on the side of the lining pipe clamp block. A group of rectangular grooves adapted to the rectangular protrusions on the side of the lining pipe clamp block are opened on both sides of the surface of the pipe head.