Workover machine oil pipe clamping tool
By using the inner semi-ring and inner semi-conical sleeve structure driven by the support block, motor and lead screw, and in conjunction with the connection limit of the outer semi-ring and outer semi-conical sleeve, the problem of the difficulty in quickly positioning the upper and lower pipes in the existing workover rig tubing clamping tool is solved, and rapid connection is achieved.
Patent Information
- Application Number
- CN202422942463.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-30
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-11-30
AI Technical Summary
Existing workover rig tubing clamping fixtures cannot ensure rapid positioning of the upper and lower tubing after clamping the tubing, resulting in cumbersome connection operations and requiring additional time and effort to adjust the position.
The inner semi-ring and inner semi-conical sleeve structures, driven by support blocks, motors, and lead screws, along with the connecting limit of the outer semi-ring and outer semi-conical sleeves, ensure that the upper and lower pipes are vertically aligned, and achieve rapid alignment through adjustment by a robotic arm.
It enables the upper and lower pipes to be quickly aligned after clamping, which facilitates connection, reduces operation time and effort, and improves connection efficiency.
Smart Images
Figure CN223545073U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of well workover machine technology, specifically relating to a well workover machine tubing clamping fixture. Background Technology
[0002] During well workover operations, whether it's running tubing, sucker rods, or other tubing strings, or connecting and repairing pipelines, pipeline clamping fixtures can firmly secure the pipelines, preventing them from shaking, shifting, or rotating during the operation. After clamping the pipeline, the robotic arm supporting the clamping components can adjust the position of the clamping components in multiple directions. While this increases the flexibility of the clamping fixture to some extent, it also leads to a tricky problem: after clamping the pipeline, it's difficult to ensure that the clamped pipeline maintains a vertical alignment with the pipeline to be connected below. This problem means that when connecting pipelines, workers need to spend extra time and effort repeatedly adjusting the position of the pipelines, trying to align the two pipelines as much as possible through visual inspection and the use of auxiliary tools to achieve an accurate connection, which is quite inconvenient. Utility Model Content
[0003] This utility model provides a well workover rig tubing clamping fixture, which solves the problem that existing clamping devices are not convenient for quickly positioning the upper and lower pipes after clamping the pipes.
[0004] This utility model provides the following technical solution: it includes a carrier plate, a support frame, and a clamping assembly. A support block is provided on one side of the support frame, and an mounting plate is installed on one side of the support block. A motor is installed on one side of the mounting plate. A lead screw is fixedly connected to the drive end of the motor. A sliding plate is threaded onto the outer wall of the lead screw. An inner semi-ring sleeve is provided above the sliding plate. An inner semi-conical sleeve is provided on one side of the inner semi-ring sleeve. The inner semi-ring sleeve and the inner semi-conical sleeve correspond to each other. An outer semi-ring sleeve is slidably connected to the inner semi-ring sleeve, and an outer semi-conical sleeve is engaged with the inner semi-conical sleeve. The sliding plate and the inner semi-ring sleeve are connected by a vertical plate. An adjusting ring is slidably connected to the outer wall of the support block, and a support plate for supporting the inner semi-conical sleeve is installed on the adjusting ring.
[0005] The clamping assembly has a connector installed at its bottom, and the support frame has a drive assembly for driving the connector.
[0006] Two limiting rods are fixedly connected between the mounting plate and the support frame. The sliding plate has sliding holes that match the limiting rods, and the sliding plate is slidably connected to the limiting rods.
[0007] The support block has a groove at its top, and the inner wall of the adjusting ring is fixedly connected with a limiting block that matches the groove.
[0008] The inner semi-ring sleeve and the inner semi-conical sleeve are connected by a connecting plate, and the outer semi-ring sleeve and the outer semi-conical sleeve are connected by a connecting rod.
[0009] The outer semi-conical sleeve has an arc-shaped positioning plate fixedly connected to one end, and a rod is installed on the arc-shaped positioning plate. The inner semi-conical sleeve has a slot corresponding to the rod at one end, and the inner semi-ring sleeve has connecting slots at both ends. The outer semi-ring sleeve has a locking block that matches the connecting slot at both ends.
[0010] The beneficial effects of this utility model are as follows: the support block, motor and lead screw enable the inner half-ring sleeve and the inner half-conical sleeve to be positioned on the outer wall of the pipe and below one end of the pipe, respectively. With the connection and limiting of the outer half-ring sleeve and the outer half-conical sleeve, when the pipes are connected, the upper and lower pipes can be vertically aligned under the action of the inner half-conical sleeve and the outer half-conical sleeve, and can be separated. Thus, after clamping and connecting the well repair pipe, the device can facilitate the alignment between the upper and lower pipes, so as to facilitate their connection.
[0011] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description
[0012] Figure 1 This is a cross-sectional structural diagram of the present invention;
[0013] Figure 2 This is a schematic diagram of the support plate and tooling in this utility model;
[0014] Figure 3 This is a schematic diagram of the movement of the outer semi-ring in this utility model;
[0015] In the diagram: 1. Carrier plate; 11. Support frame; 12. Clamping assembly; 13. Connector; 14. Drive assembly; 2. Support block; 21. Mounting plate; 22. Motor; 23. Lead screw; 231. Limiting rod; 24. Slide plate; 241. Sliding hole; 25. Inner semi-ring sleeve; 251. Connecting groove; 26. Inner semi-conical sleeve; 261. Connecting plate; 262. Slot; 27. Outer semi-ring sleeve; 271. Connecting rod; 28. Outer semi-conical sleeve; 29. Arc-shaped positioning plate; 291. Insert rod; 3. Slide groove; 31. Adjusting ring; 311. Limiting block; 32. Support plate; 33. Vertical plate. Detailed Implementation
[0016] Please see Figures 1-3The present invention provides the following technical solution: including a carrier plate 1, a support frame 11 and a clamping assembly 12, a support block 2 is provided on one side of the support frame 11, an mounting plate 21 is installed on one side of the support block 2, a motor 22 is installed on one side of the mounting plate 21, a lead screw 23 is fixedly connected to the drive end of the motor 22, a sliding plate 24 is threadedly connected to the outer wall of the lead screw 23, an inner semi-ring sleeve 25 is provided above the sliding plate 24, an inner semi-conical sleeve 26 is provided on one side of the inner semi-ring sleeve 25, the inner semi-ring sleeve 25 and the inner semi-conical sleeve 26 correspond to each other, an outer semi-ring sleeve 27 is slidably connected to the inner semi-ring sleeve 25, an outer semi-conical sleeve 28 is engagedly connected to the inner semi-conical sleeve 26, the sliding plate 24 and the inner semi-ring sleeve 25 are connected by a vertical plate 33, an adjusting ring 31 is slidably connected to the outer wall of the support block 2, and a support plate 32 for supporting the inner semi-conical sleeve 26 is installed on the adjusting ring 31.
[0017] In this implementation scheme: the carrier plate 1 serves as the support for the bearing device. The clamping assembly 12 is connected and supported by the support frame 11 installed on the carrier plate 1, allowing the clamping assembly 12 to be connected to the support frame 11. Driven by the connector 13 and the drive assembly 14, the two clamping assemblies 12 can open and close to facilitate connection to the outer wall of the pipe. During well repair, when the pipe needs to be connected vertically, the pipe below the ground is positioned below. The new pipe needs to be clamped and aligned vertically with the lower pipe. The mounting plate 21 then holds the required connecting pipe. After clamping, the externally driven robotic arm can lift the carrier plate 1 and position the pipe vertically on the ground. During pipe clamping, the support block 2 below the support frame 11 is positioned below the pipe connection end. The support block 2 is connected to the lead screw 23 via a motor 22 fixedly connected to the mounting plate 21. One end of the lead screw 23 is rotatably connected to one side of the support frame 11, allowing adjustment of the position of the threaded sliding plate 24 on the lead screw 23. This adjusts the inner half-ring 25 to the outer wall of the pipe, while the inner half-conical sleeve 26 is adjusted to a position below the pipe end. After the pipe is successfully clamped, the outer semi-ring sleeve 27 and the outer semi-conical sleeve 28 are slid onto the inner semi-ring sleeve 25 and the inner semi-conical sleeve 26, respectively, so that the inner semi-ring sleeve 25 forms an annular cylindrical shape and is fitted onto the outer wall of the pipe. The inner wall of the inner semi-ring sleeve 25 fits against the outer wall of the pipe, thus binding it to the outer wall. This allows the inner semi-conical sleeve 26 to maintain a perpendicular alignment with the upper pipe. When the upper and lower pipes are joined, since the inner semi-conical sleeve 26 is now below the upper pipe, and the inner wall of the inner semi-conical sleeve 26 gradually decreases in size from bottom to top, the inner semi-conical sleeve 26 can... The device can be quickly fitted onto the lower pipe, allowing it to move downwards. Under the limiting effect of the inner semi-conical sleeve 26 and the inner semi-circular sleeve 25, the upper and lower pipes can be quickly aligned. This facilitates the alignment of the upper and lower pipes after clamping and connecting the well repair pipes, making it easier to connect them. After the upper and lower pipes are vertically aligned, the outer semi-circular sleeve 27 and the outer semi-conical sleeve 28 can slide downwards, separating them from the inner semi-circular sleeve 25 and the inner semi-conical sleeve 26. After separation, the clamping device can be removed from the connected pipes.
[0018] A connector 13 is installed at the bottom of the clamping assembly 12, and a drive assembly 14 for driving the connector 13 is installed on the support frame 11. The connector 13 installed at the bottom of the clamping assembly 12 is driven by the drive assembly 14 installed on the support frame 11, so that the clamping assembly 12 can be adjusted in angle, and the clamping assembly 12 can clamp the outer wall of the pipe.
[0019] Two limiting rods 231 are fixedly connected between the mounting plate 21 and the support frame 11. The sliding plate 24 has a sliding hole 241 that matches the limiting rods 231. The sliding plate 24 is slidably connected to the limiting rods 231. The two limiting rods 231 fixedly connected between the mounting plate 21 and the support frame 11 can limit the displacement of the sliding plate 24 to ensure that it moves horizontally. This allows the sliding plate 24 and the inner half-ring sleeve 25 to be adjusted horizontally, and the inner half-conical sleeve 26 to be adjusted to a position below the bottom of the pipe.
[0020] The top of the support block 2 is provided with a groove 3, and the inner wall of the adjusting ring 31 is fixedly connected with a limiting block 311 that matches the groove 3. The groove 3 on the top of the support block 2 is used to allow the adjusting ring 31 to slide on the outer wall of the support block 2 to support the inner semi-conical sleeve 26. The limiting block 311 allows the groove 3 to slide on the outer wall of the support block 2, so that it can ensure support for the inner semi-conical sleeve 26 and keep it corresponding to the inner semi-circular sleeve 25.
[0021] The inner half-ring sleeve 25 and the inner half-conical sleeve 26 are connected by a connecting plate 261, and the outer half-ring sleeve 27 and the outer half-conical sleeve 28 are connected by a connecting rod 271. The inner half-ring sleeve 25 and the inner half-conical sleeve 26 are connected by a connecting plate 261 so that they can be adjusted synchronously. The outer half-ring sleeve 27 and the outer half-conical sleeve 28 are connected by a connecting rod 271 so that the outer half-ring sleeve 27 and the outer half-conical sleeve 28 can be installed on the inner half-ring sleeve 25 and the inner half-conical sleeve 26 at the same time and can be separated at the same time.
[0022] An arc-shaped positioning plate 29 is fixedly connected to one end of the outer semi-conical sleeve 28. An insertion rod 291 is installed on the arc-shaped positioning plate 29. A slot 262 corresponding to the insertion rod 291 is opened at one end of the inner semi-conical sleeve 26. A connecting groove 251 is opened at both ends of the inner semi-ring sleeve 25. A locking block matching the connecting groove 251 is fixedly connected to both ends of the outer semi-ring sleeve 27. When the outer semi-ring sleeve 27 and the outer semi-conical sleeve 28 are installed on the inner semi-ring sleeve 25 and the inner semi-conical sleeve 26, the arc-shaped positioning plate 29 is used to align the bottom end of the inner semi-conical sleeve 26, so that the insertion rod 291 is limited in the slot 262. With the locking blocks installed at both ends of the outer semi-ring sleeve 27, it can slide in the connecting groove 251 opened at the top of the inner semi-ring sleeve 25, so that it is locked and fixed on the inner semi-ring sleeve 25 and the inner semi-conical sleeve 26, thereby limiting the pipe.
[0023] The working principle and usage process of this utility model: After the pipe to be connected is clamped by the clamping assembly 12, the sliding plate 24 is adjusted by the motor 22 to be positioned on the outer wall of the lead screw 23, so that the inner half-ring sleeve 25 is on the outer wall of the pipe, while the inner half-conical sleeve 26 is adjusted to the lower position of the pipe end. The outer half-ring sleeve 27 and the outer half-conical sleeve 28 are slid onto the inner half-ring sleeve 25 and the inner half-conical sleeve 26 respectively, so that the inner half-ring sleeve 25 forms an annular cylindrical shape and is fitted onto the outer wall of the pipe. As the inner wall of the inner half-conical sleeve 26 gradually decreases from bottom to top, the inner half-conical sleeve 26 can... The device is quickly fitted onto the lower pipe, allowing it to move downwards. Under the limiting effect of the inner semi-conical sleeve 26 and the inner semi-circular sleeve 25, the upper and lower pipes can be quickly aligned. This facilitates the alignment of the upper and lower pipes after clamping and connecting the well repair pipes, making it easier to connect them. After the upper and lower pipes are vertically aligned, the outer semi-circular sleeve 27 and the outer semi-conical sleeve 28 can slide downwards, separating them from the inner semi-circular sleeve 25 and the inner semi-conical sleeve 26. After separation, the clamping device can be removed from the connected pipes.
Claims
1. A workover rig tubing clamping fixture, comprising a carrier plate (1), a support frame (11), and a clamping assembly (12), characterized in that: The support frame (11) has a support block (2) on one side, and a mounting plate (21) is installed on one side of the support block (2). A motor (22) is installed on one side of the mounting plate (21). A lead screw (23) is fixedly connected to the drive end of the motor (22). A sliding plate (24) is threaded onto the outer wall of the lead screw (23). An inner semi-ring sleeve (25) is provided above the sliding plate (24). An inner semi-conical sleeve (26) is provided on one side of the inner semi-ring sleeve (25). Corresponding to the inner semi-conical sleeve (26), the inner semi-ring sleeve (25) is slidably connected to the outer semi-ring sleeve (27), the inner semi-conical sleeve (26) is engaged with the outer semi-conical sleeve (28), the sliding plate (24) and the inner semi-ring sleeve (25) are connected by a vertical plate (33), the outer wall of the support block (2) is slidably connected to an adjusting ring (31), and a support plate (32) for supporting the inner semi-conical sleeve (26) is installed on the adjusting ring (31).
2. The workover rig tubing clamping fixture according to claim 1, characterized in that: The clamping assembly (12) has a connector (13) mounted on its bottom, and the support frame (11) has a drive assembly (14) for driving the connector (13).
3. The workover rig tubing clamping fixture according to claim 1, characterized in that: Two limiting rods (231) are fixedly connected between the mounting plate (21) and the support frame (11). The sliding plate (24) is provided with sliding holes (241) that match the limiting rods (231). The sliding plate (24) is slidably connected to the limiting rods (231).
4. The tubing clamping fixture for a workover rig according to claim 1, characterized in that: The support block (2) has a groove (3) on its top, and the inner wall of the adjusting ring (31) is fixedly connected with a limiting block (311) that matches the groove (3).
5. The tubing clamping fixture for a workover rig according to claim 1, characterized in that: The inner half-ring sleeve (25) and the inner half-conical sleeve (26) are connected by a connecting plate (261), and the outer half-ring sleeve (27) and the outer half-conical sleeve (28) are connected by a connecting rod (271).
6. The tubing clamping fixture for a workover rig according to claim 1, characterized in that: One end of the outer semi-conical sleeve (28) is fixedly connected to an arc-shaped positioning plate (29), and a plug rod (291) is installed on the arc-shaped positioning plate (29). One end of the inner semi-conical sleeve (26) is provided with a slot (262) corresponding to the plug rod (291). Both ends of the inner semi-ring sleeve (25) are provided with connecting grooves (251). Both ends of the outer semi-ring sleeve (27) are fixedly connected with a locking block that matches the connecting groove (251).