A reversing mechanism and tubing power tong
By designing a reversing mechanism and a motor-driven gear rotation method, the problem of inconvenient adjustment of the clamping direction of the oil pipe power clamp is solved. This enables flexible posture adjustment of the power clamp body and automatic adaptation of the clamping axis, preventing damage to the clamped object and improving the flexibility and safety of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANHU HANDA MASCH MFG CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-06-02
AI Technical Summary
The hydraulic hose power clamp requires frequent adjustment of the clamping direction during clamping, which can lead to damage to the clamped object. Existing technology lacks an effective reversing mechanism.
A reversing mechanism was designed, in which a motor drives a gear to rotate, and the reversing gear rotates within the housing. Combined with an electric telescopic rod and a fine-tuning component, this mechanism enables the attitude adjustment of the power clamp body and the automatic fine-tuning of the clamping axis.
It enables flexible posture adjustment of the power clamp body and automatic adaptation of the clamping axis, preventing shear force from damaging the clamped object during clamping, and improving the flexibility and safety of operation.
Smart Images

Figure CN224314934U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tubing power clamps, specifically a reversing mechanism and a tubing power clamp. Background Technology
[0002] Tubing wrenches are key pieces of equipment used in oil well operations for threading tubing threads, employing a hydraulic drive system. This tool consists of a wrench body, a hydraulic motor, a planetary reducer, and other components. It is equipped with a spring suspension and an anti-pinch safety device, and torque adjustment is achieved through graded differential speed gears. The new patented technology introduced in 2024 features a ring-shaped anchor chain wrench head design, supporting quick replacement of clamping blocks adapted to different pipe diameters. During operation, it is essential to strictly adhere to the specification of using the high-speed gear for threading and the low-speed gear for unthreading. Basic maintenance is required after each well operation.
[0003] When clamping, hydraulic hose power pliers are relatively heavy and usually require the use of auxiliary supports or cranes. In actual use, the clamping position and direction are not always the same, and the clamping direction needs to be adjusted frequently to prevent the shearing force during clamping from damaging the clamped object. Therefore, a reversing mechanism and hydraulic hose power pliers are needed. Utility Model Content
[0004] The purpose of this invention is to provide a reversing mechanism and a hydraulic power clamp to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a connecting block is installed on the top of the outer shell, the reversing gear is rotatably connected inside the outer shell, and a fine-tuning component is rotatably connected inside the reversing gear. A gear is installed on one side of the reversing gear, and a motor is installed on one side of the gear. The motor is started according to the clamping direction to drive the gear to rotate, and the gear drives the reversing gear to rotate in the outer shell, thereby driving the power clamp body to rotate.
[0006] Preferably, the fine-tuning component includes a rotating block and an electric telescopic rod, and the electric telescopic rod is rotatably connected to one side of the rotating block. When the power clamp body is clamping, the electric telescopic rod is in a relaxed state, which facilitates automatic fine-tuning to adapt to the clamping axis when the power clamp body is clamping. After clamping is completed, the electric telescopic rod starts to fix the length.
[0007] Preferably, a rack is installed on the upper part of the inside of the rotating block, and the rack is slidably connected to the rotating block.
[0008] Preferably, a sliding plate is installed inside the lower part of the rotating block, and the sliding plate is slidably connected to the rotating block. The sliding plate slides in the rotating block, limiting the sliding direction.
[0009] Preferably, a second gear is installed on the right side of the rotating block, and a second motor is installed on one side of the second gear. The second motor drives the second gear to rotate, and the rotation of the second gear causes the rack to extend forward.
[0010] Preferably, a mounting block is installed on the left end of the sliding plate, and the mounting block is welded to the sliding plate. The mounting block is installed on one end of the sliding plate and the rack.
[0011] Preferably, a rotating seat is installed above the mounting block, and the rotating seat is rotatably connected to the mounting block. The power clamp body rotates on the mounting block via the rotating seat to finely adjust the clamping direction.
[0012] A hydraulic hose power clamp includes a power clamp body, wherein the power clamp body is equipped with a reversing mechanism as described above.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The device is installed on the operating platform such as the hanger via a connecting block. According to the clamping direction, the first motor drives the first gear to rotate. The first gear drives the reversing gear to rotate in the outer shell, thereby driving the power clamp body to rotate, which facilitates the approximate adjustment of the posture of the power clamp body. The second motor drives the second gear to rotate. The rotation of the second gear drives the rack to extend forward. The rack and the sliding plate slide forward in the rotating block to send the power clamp body forward. The power clamp body rotates on the mounting block via a rotating seat to finely adjust the clamping direction. When the power clamp body is clamping, the electric telescopic rod is in a relaxed state, which facilitates the automatic fine adjustment of the power clamp body to adapt to the clamping axis. After clamping is completed, the electric telescopic rod starts to a fixed length to fix the position of the rotating block, preventing the power clamp body and the clamped object from being on the same axis during clamping, which would cause shear force to damage the clamped object.
[0014] This utility model proposes a reversing mechanism and an oil pipe power clamp. Attached Figure Description
[0015] Figure 1 This is a frontal three-dimensional structural diagram of the present utility model;
[0016] Figure 2 This is a three-dimensional sectional view of the outer shell of this utility model;
[0017] Figure 3 This is a partial three-dimensional structural diagram of the fine-tuning component of this utility model.
[0018] In the diagram: 1. Power clamp body; 2. Housing; 3. Reversing gear; 4. Gear 1; 5. Motor 1; 6. Fine-tuning component; 601. Screw block; 602. Electric telescopic rod; 7. Gear 2; 8. Motor 2; 9. Rack; 10. Sliding plate; 11. Mounting block; 12. Screw seat; 13. Connecting block. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0020] Example 1
[0021] Please see Figures 1-3 This utility model provides a technical solution: A connecting block 13 is installed on the top of the outer shell 2. A reversing gear 3 is rotatably connected inside the outer shell 2, and a fine-tuning component 6 is rotatably connected inside the reversing gear 3. A gear 4 is installed on one side of the reversing gear 3, and a motor 5 is installed on one side of the gear 4. The fine-tuning component 6 includes a rotating block 601 and an electric telescopic rod 602. The electric telescopic rod 602 is rotatably connected to one side of the rotating block 601. The motor 5 is started according to the clamping direction to drive the gear 4 to rotate. The gear 4 drives the reversing gear 3 to rotate in the outer shell 2, thereby driving the power clamp body 1 to rotate. This facilitates the approximate adjustment of the posture of the power clamp body 1. When the power clamp body 1 is clamping, the electric telescopic rod 602 is in a relaxed state, which facilitates the automatic fine-tuning of the power clamp body 1 to adapt to the clamping axis. After clamping is completed, the electric telescopic rod 602 starts to a fixed length to fix the position of the rotating block 601, preventing the power clamp body 1 and the clamped object from being on the same axis during clamping, which would cause shear force to damage the clamped object.
[0022] Example 2
[0023] Based on Embodiment 1, a rack 9 is installed on the upper part of the inside of the rotating block 601, and the rack 9 is slidably connected to the rotating block 601. A sliding plate 10 is installed on the lower part of the inside of the rotating block 601, and the sliding plate 10 is slidably connected to the rotating block 601. A gear 2 7 is installed on the right side of the rotating block 601, and a motor 2 8 is installed on one side of the gear 2 7. A mounting block 11 is installed on the left end of the sliding plate 10, and the mounting block 11 is welded to the sliding plate 10. A rotating seat 12 is installed on the upper part of the mounting block 11, and the rotating seat 12 is rotatably connected to the mounting block 11. The motor 2 8 drives the gear 2 7 to rotate, and the rotation of the gear 2 7 drives the rack 9 to extend forward. The rack 9 and the sliding plate 10 slide forward in the rotating block 601 to send the power clamp body 1 forward. The power clamp body 1 rotates on the mounting block 11 via the rotating seat 12 to finely adjust the clamping direction.
[0024] A hydraulic hose power clamp includes a power clamp body 1, which is equipped with a reversing mechanism as described above.
[0025] In actual use, the device is installed on the operating platform such as the hanger via the connecting block 13. According to the clamping direction, the motor 5 drives the gear 4 to rotate. The gear 4 drives the reversing gear 3 to rotate in the outer shell 2, thereby driving the power clamp body 1 to rotate, which facilitates the approximate adjustment of the posture of the power clamp body 1. The motor 8 drives the gear 7 to rotate. The rotation of the gear 7 drives the rack 9 to extend forward. The rack 9 and the sliding plate 10 slide forward in the rotating block 601, sending the power clamp body 1 forward. The power clamp body 1 rotates on the mounting block 11 via the rotating seat 12 to finely adjust the clamping direction. When the power clamp body 1 is clamping, the electric telescopic rod 602 is in a relaxed state, which facilitates the automatic fine adjustment of the power clamp body 1 to adapt to the clamping axis. After clamping is completed, the electric telescopic rod 602 starts to a fixed length to fix the position of the rotating block 601, preventing the power clamp body 1 and the clamped object from being on the same axis during clamping, which would cause shear force to damage the clamped object.
[0026] 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 reversing mechanism, characterized in that: The reversing mechanism includes a housing (2) and a reversing gear (3). A connecting block (13) is installed on the top of the housing (2). The reversing gear (3) is rotatably connected to the inside of the housing (2), and a fine-tuning component (6) is rotatably connected to the inside of the reversing gear (3). A gear (4) is installed on one side of the reversing gear (3), and a motor (5) is installed on one side of the gear (4).
2. The reversing mechanism according to claim 1, characterized in that: The fine-tuning component (6) includes a rotating block (601) and an electric telescopic rod (602), and the electric telescopic rod (602) is rotatably connected to one side of the rotating block (601).
3. A reversing mechanism according to claim 2, characterized in that: A rack (9) is installed on the upper part of the inside of the rotating block (601), and the rack (9) is slidably connected to the rotating block (601).
4. A reversing mechanism according to claim 2, characterized in that: A sliding plate (10) is installed inside the lower part of the rotating block (601), and the sliding plate (10) and the rotating block (601) are slidably connected.
5. A reversing mechanism according to claim 2, characterized in that: Gear 2 (7) is installed on the right side of the rotating block (601), and motor 2 (8) is installed on one side of gear 2 (7).
6. A reversing mechanism according to claim 4, characterized in that: An mounting block (11) is installed on the left end of the sliding plate (10), and the mounting block (11) is welded to the sliding plate (10).
7. A reversing mechanism according to claim 6, characterized in that: A rotating seat (12) is mounted on top of the mounting block (11), and the rotating seat (12) is rotatably connected to the mounting block (11).
8. A hydraulic hose power clamp, comprising a power clamp body (1), characterized in that, The power clamp body (1) is equipped with a reversing mechanism as described in any one of claims 1-7.