Gear pump shaft straightening device

By designing a gear pump shaft straightening device that includes clamping, position adjustment, and moving components, the problem of not being able to fix gear shafts of different lengths in the prior art has been solved, achieving stable fixing and comprehensive correction of the gear shaft and improving the correction effect.

CN224208844UActive Publication Date: 2026-05-08NINGBO YINZHOU LANGTONG MASCH TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO YINZHOU LANGTONG MASCH TECH CO LTD
Filing Date
2025-04-08
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing gear shaft alignment devices cannot effectively fix and align gear shafts of different lengths, resulting in poor alignment effects and difficulty in adapting to different types of drive shafts.

Method used

A gear pump shaft straightening device is designed, comprising a worktable, a clamping assembly, a position adjustment assembly, a moving assembly, and a straightening assembly. The gear shaft is fixed by the clamping assembly, the clamping position is adjusted by the position adjustment assembly, and the moving assembly drives the straightening assembly to move, thereby achieving comprehensive straightening of gear shafts of different lengths.

Benefits of technology

It achieves stable fixing and comprehensive correction of gear shafts of different lengths and models, improves the correction effect, and enhances the applicability and stability of the device.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224208844U_ABST
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Abstract

The utility model relates to the technical field of gear shaft production, in particular to a gear pump shaft straightening device which can be used for fixing gear shafts with different lengths, correcting the gear shafts with different lengths conveniently and comprehensively straightening the gear shafts. Comprising a workbench, a base, a clamping assembly, a position adjusting assembly, straightening assemblies and moving assemblies, the bottom of the workbench is fixedly connected with the base, the clamping assembly is installed at the top of the workbench through the position adjusting assembly, the moving assemblies are installed at the front end and the rear end of the workbench, and the straightening assemblies are installed on the moving assemblies.
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Description

Technical Field

[0001] This utility model relates to the technical field of gear shaft production, and in particular to a gear pump shaft straightening device. Background Technology

[0002] Currently, gear shaft blanks are generally machined using wedge cross rolling. The gear shafts are subjected to significant pressure during machining, resulting in deformation after processing, necessitating tooling for straightening. Existing technology publication CN208288713U discloses a pump shaft straightening device, including a bracket and a base plate mounted on the bracket. A movable pad is provided on the base plate; a hydraulic head is mounted on the movable pad, and a pressure head for straightening the pump shaft is connected to the lower part of the hydraulic head; the control input end of the hydraulic head is connected to a hydraulic pump, and the control input end of the hydraulic pump is connected to a control device. However, this method cannot fix drive shafts of different lengths, affecting the straightening effect and resulting in poor performance. Furthermore, it is inconvenient to clamp different types of drive shafts, leading to poor straightening results and inconvenience for users. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a gear pump shaft straightening device that can fix gear shafts of different lengths, facilitate the correction of gear shafts of different lengths, and perform comprehensive straightening of gear shafts.

[0004] This utility model discloses a gear pump shaft straightening device, comprising a worktable, a base, a clamping assembly, a position adjustment assembly, a straightening assembly, and a moving assembly. The bottom of the worktable is fixedly connected to the base, and the clamping assembly is mounted on the top of the worktable via the position adjustment assembly. Moving assemblies are mounted at the front and rear ends of the worktable, and straightening assemblies are mounted on the moving assemblies. The position adjustment assembly can adjust the clamping support position, and the clamping assembly fixes the gear shaft, thereby fixing gear shafts of different lengths for easy straightening. The straightening assembly straightens the gear shaft, and the moving assembly can drive the straightening assembly to move, thus achieving a comprehensive straightening of the gear shaft and a better straightening effect for transmission gear shafts.

[0005] Preferably, the clamping assembly includes two clamping seats, two clamping frames, two electric telescopic rods, two sets of first limiting guide rods, and two mounting plates. The two mounting plates are located on the left and right sides of the top of the worktable, respectively. A clamping seat is installed in the middle of the top of the mounting plate, and clamping frames are installed at the front and rear ends of the top of the mounting plate. A pressing block is installed on the top of the clamping frame, and pressing blocks are installed at the four telescopic ends of the pressing blocks. The bottom of the pressing block is set with an arc-shaped positioning groove. First limiting guide rods are installed at the front and rear ends of the pressing blocks, and the upper part of the first limiting guide rods is slidably installed on the top of the clamping frame. The two ends of the gear shaft are placed on the top of the two clamping seats. The electric telescopic rods are activated to drive the pressing blocks to move downwards, cooperating with the clamping seats to clamp and fix the gear shaft. When the pressing blocks move, they drive the first limiting guide rods to slide on the clamping frame, providing guidance and support to ensure the stability of the clamping.

[0006] Preferably, the position adjustment assembly includes a rotating rod, two adjusting sliders, a first reducer, a drive motor, and two sets of guide sliders. An adjustment groove is provided at the center of the top of the worktable. The rotating rod is rotatably mounted within the adjustment groove. Symmetrical threaded grooves are provided at both ends of the rotating rod. The two adjusting sliders are symmetrically screwed onto the outer wall of the rotating rod. The input end of the rotating rod is connected to the output end of the first reducer. The first reducer is mounted on the left side wall of the worktable, and its input end is connected to the output end of the drive motor. The top of the adjusting sliders is connected to the bottom of the mounting plate. The top of the worktable is symmetrically positioned about the adjustment groove. The mounting plate is equipped with guide grooves, and guide sliders are symmetrically installed on the bottom of the mounting plate. Two sets of guide sliders are slidably installed in the guide grooves. When the drive motor is started, it drives the rotating rod to rotate through the first reducer. The rotating rod drives the adjusting slider to move in the adjusting groove, which moves the mounting plate to the top of the worktable, thereby adjusting the distance between the two clamping frames. By adjusting the distance between the two sets of clamping frames, gear shafts of different lengths can be fixed, which facilitates the correction of gear shafts of different lengths. When the mounting plate moves, it drives the guide slider to move in the guide groove, which limits and guides it to ensure stability.

[0007] Preferably, the moving assembly includes two threaded rods, two second reducers, a dual-output motor, a moving frame, two moving blocks, two sets of first connecting plates, two support slide rods, and two support sliders. Moving grooves are formed on the front and rear side walls of the worktable. The threaded rods are rotatably mounted within the moving grooves, with their input ends connected to the output ends of the second reducers. The dual-output motors are mounted on the right side wall of the worktable, with their front and rear output ends connected to the input ends of the second reducers. The moving blocks are slidably mounted within the moving grooves and screwed onto the outer walls of the threaded rods. The front and rear ends of the bottom of the moving frame are connected to the moving blocks. The bottom of the worktable is symmetrically equipped with first connecting plates at both ends. A support slide rod is installed between the two first connecting plates. The support slider is slidably mounted on the support slide rod. The bottom of the moving frame is connected to the support slider. When the dual-output motor is started, it drives the threaded rod to rotate through the second reducer. The threaded rod drives the second reducer to move in the moving slide groove, thereby driving the moving frame to move above the worktable. When the moving frame moves, it drives the support slider to slide on the support slide rod, which supports and guides the moving frame to ensure stability and facilitates adjustment and straightening of the position. This allows for comprehensive straightening of the gear shaft and provides a better correction effect for the transmission gear shaft.

[0008] Preferably, the straightening assembly includes a straightening hydraulic cylinder, a protrusion, and two limiting guide rods. The straightening hydraulic cylinder is installed at the top center of the moving frame, and a protrusion is installed at the bottom of the straightening hydraulic cylinder. Limiting guide rods are symmetrically installed at the front and rear ends of the protrusion, and the limiting guide rods are slidably installed on the top of the moving frame. When the straightening hydraulic cylinder is activated, it pushes the protrusion downward to straighten the drive shaft. When the protrusion moves downward, it drives the limiting guide rods to slide on the moving frame, guiding and limiting the protrusion, increasing the connection strength, and ensuring stability.

[0009] Preferably, it also includes a connecting plate, two supporting hydraulic cylinders, and two support blocks. The connecting plate connects the front and rear ends of the moving frame and slides on the top of the workbench. Supporting hydraulic cylinders are installed on the left and right ends of the middle of the connecting plate, and support blocks are installed on the top of the supporting hydraulic cylinders. When the moving frame moves, the connecting plate drives the supporting hydraulic cylinders to move to the bottom of the left and right sides of the straightening part. The supporting hydraulic cylinders are activated to push the support blocks upward, which cooperate with the protrusions to support the gear shaft and ensure the straightening quality.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: the position adjustment component can adjust the clamping support position, and the gear shaft is fixed by the clamping component, thereby fixing gear shafts of different lengths, which facilitates the correction of gear shafts of different lengths. The straightening component can correct the gear shaft, and at the same time, the moving component can drive the straightening component to move, so as to fully straighten the gear shaft and achieve a better correction effect on the transmission gear shaft. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the isometric structure of this utility model;

[0013] Figure 3 This is a schematic diagram of the lower three-dimensional structure of this utility model;

[0014] Figure 4 This is a schematic diagram of the left-side cross-sectional structure of this utility model;

[0015] Figure 5 This is a schematic diagram of the right-side cross-sectional structure of this utility model;

[0016] The following are labels in the attached diagram: 1. Workbench; 2. Base; 3. Rotating rod; 4. Adjusting slider; 5. First reducer; 6. Drive motor; 7. Guide slider; 8. Clamping seat; 9. Clamping frame; 10. Electric telescopic rod; 11. Pressing block; 12. First limit guide rod; 13. Threaded rod; 14. Second reducer; 15. Dual output motor; 16. Moving frame; 17. Moving block; 18. First connecting plate; 19. Support slide rod; 20. Support slider; 21. Straightening hydraulic cylinder; 22. Protrusion; 23. Limit guide rod; 24. Connecting plate; 25. Support hydraulic cylinder; 26. Support block; 27. Mounting plate. Detailed Implementation

[0017] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0018] like Figures 1 to 5As shown, the bottom of the workbench 1 is fixedly connected to the base 2. Two mounting plates 27 are located on the left and right sides of the top of the workbench 1, respectively. A clamping seat 8 is installed in the middle of the top of the mounting plate 27. A clamping frame 9 is installed at the front and rear ends of the top of the mounting plate 27. A pressing block 11 is installed on the top of the clamping frame 9. A pressing block 11 is installed at the four telescopic ends of the pressing block 11. The bottom of the pressing block 11 is set with an arc-shaped positioning groove. A first limiting guide rod 12 is installed at the front and rear ends of the pressing block 11. The upper part of the first limiting guide rod 12 is slidably installed on the top of the clamping frame 9. An adjusting slide groove is opened in the middle of the top of the workbench 1. The rotating rod 3 rotates and is installed in the center. The rotating rod 3 is symmetrically threaded at both ends within the adjusting groove. Two adjusting sliders 4 are symmetrically screwed onto the outer wall of the rotating rod 3. The input end of the rotating rod 3 is connected to the output end of the first reducer 5, which is mounted on the left side wall of the worktable 1. The input end of the first reducer 5 is connected to the output end of the drive motor 6. The top of the adjusting sliders 4 is connected to the bottom of the mounting plate 27. The top of the worktable 1 has symmetrically opened guide grooves about the adjusting groove. Guide sliders 7 are symmetrically mounted on the bottom of the mounting plate 27. The two sets of guide sliders 7 are slidably installed in the guide grooves. 1. Movable grooves are provided on the front and rear side walls. Threaded rod 13 is rotatably installed in the movable grooves. The input end of threaded rod 13 is connected to the output end of second reducer 14. Dual-output motor 15 is installed on the right side wall of worktable 1. The output ends of dual-output motor 15 on both the front and rear sides are connected to the input end of second reducer 14. Movable block 17 is slidably installed in the movable grooves and screwed onto the outer wall of threaded rod 13. The front and rear ends of the bottom of movable frame 16 are connected to movable block 17. First connecting plates 18 are symmetrically installed on the left and right sides of the front and rear ends of the bottom of worktable 1. A support is installed between the two first connecting plates 18. Support rod 19 and support slider 20 are slidably mounted on support rod 19. The bottom of the moving frame 16 is connected to the support slider 20. The straightening hydraulic cylinder 21 is installed at the top center of the moving frame 16. The bottom of the straightening hydraulic cylinder 21 is equipped with a protrusion 22. Limiting guide rods 23 are symmetrically installed at the front and rear ends of the protrusion 22. The limiting guide rods 23 are slidably mounted on the top of the moving frame 16. The connecting plate 24 connects the front and rear ends of the moving frame 16. The connecting plate 24 is slidably located on the top of the workbench 1. Supporting hydraulic cylinders 25 are installed at the left and right ends of the middle of the connecting plate 24. The top of the supporting hydraulic cylinder 25 is equipped with a support block 26.

[0019] The two ends of the gear shaft are placed on top of the two clamping seats 8. The electric telescopic rod 10 is activated, which drives the clamping block 11 to move downward, cooperating with the clamping seats 8 to clamp and fix the gear shaft. When the clamping block 11 moves, it drives the first limit guide rod 12 to slide on the clamping frame 9, providing guidance and support to ensure the stability of the clamping. The drive motor 6 is activated, which drives the rotating rod 3 to rotate through the first reducer 5. The rotating rod 3 drives the adjusting slider 4 to move in the adjusting groove, which drives the mounting plate 27 to the top of the worktable 1, thereby adjusting the distance between the two clamping frames 9. By adjusting the distance between the two sets of clamping frames 9, gear shafts of different lengths can be fixed, which facilitates the correction of gear shafts of different lengths. When the mounting plate 27 moves, it drives the guide slider 7 to move in the guide groove, providing limit guidance to ensure stability. The straightening hydraulic cylinder 21 is activated, which pushes the protrusion 22 downward to move the transmission shaft. During the calibration process, when the protrusion 22 moves downward, it drives the limiting guide rod 23 to slide on the moving frame 16, guiding and limiting the protrusion 22, increasing the connection strength and ensuring stability. The dual-output motor 15 is started, which drives the threaded rod 13 to rotate through the second reducer 14. The threaded rod 13 drives the second reducer 14 to move in the moving slide groove, thereby driving the moving frame 16 to move above the worktable 1. When the moving frame 16 moves, it drives the support slider 20 to slide on the support slide rod 19, supporting and guiding the moving frame 16, ensuring stability, and facilitating the adjustment of the straightening position. The gear shaft is fully straightened, resulting in a better calibration effect for the transmission gear shaft. When the moving frame 16 moves, it drives the support hydraulic cylinder 25 to move to the bottom left and right sides of the straightening part through the connecting plate 24. The support hydraulic cylinder 25 is started to push the support block 26 upward, cooperating with the protrusion 22 to support the gear shaft and ensure the straightening quality.

[0020] like Figures 1 to 5As shown, this utility model discloses a gear pump shaft straightening device. During operation, the drive motor 6, via the first reducer 5, drives the rotating rod 3 to rotate. The rotating rod 3 moves the adjusting slider 4 within the adjusting groove, causing the mounting plate 27 to move onto the top of the worktable 1, thereby adjusting the distance between the two clamping frames 9. By adjusting the distance between the two sets of clamping frames 9, the two ends of the gear shaft are placed on top of the two clamping seats 8. The electric telescopic rod 10 is activated, causing the pressing block 11 to move downwards, cooperating with the clamping seats 8 to clamp and fix the gear shaft. The straightening hydraulic cylinder 21 is activated, pushing the protrusion 22 downwards to straighten the transmission shaft. The dual-output... Motor 15 drives threaded rod 13 to rotate via second reducer 14. Threaded rod 13 drives second reducer 14 to move within the sliding groove, thereby moving moving frame 16 above worktable 1. When moving frame 16 moves, it drives support slider 20 to slide on support slide rod 19, providing support and guidance for moving frame 16, facilitating adjustment of the straightening position and comprehensive straightening of the gear shaft. When moving frame 16 moves, it drives support hydraulic cylinder 25 to the bottom left and right sides of the straightening area via connecting plate 24. The support hydraulic cylinder 25 is activated to push support block 26 upward, cooperating with protrusion 22 to support gear shaft and ensure straightening quality.

[0021] The first reducer 5, drive motor 6, second reducer 14, and dual-output motor 15 of the gear pump shaft straightening device of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0022] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A gear pump shaft straightening device, characterized in that, It includes a worktable (1), a base (2), a clamping assembly, a position adjustment assembly, a straightening assembly and a moving assembly. The bottom of the worktable (1) is fixedly connected to the base (2). The top of the worktable (1) is equipped with a clamping assembly through the position adjustment assembly. The front and rear ends of the worktable (1) are equipped with moving assemblies, and the moving assemblies are equipped with straightening assemblies. The clamping assembly includes two clamping seats (8), two clamping frames (9), two electric telescopic rods (10), two sets of first limiting guide rods (12) and two mounting plates (27). The two mounting plates (27) are located on the left and right sides of the top of the workbench (1). The clamping seats (8) are installed in the middle of the top of the mounting plate (27). The clamping frames (9) are installed at the front and rear ends of the top of the mounting plate (27). The clamping frames (9) are installed on the top of the clamping frames (9). The four telescopic ends of the clamping blocks (11) are equipped with clamping blocks (11). The bottom of the clamping blocks (11) is set with an arc-shaped positioning groove. The first limiting guide rods (12) are installed at the front and rear ends of the clamping blocks (11). The upper part of the first limiting guide rods (12) is slidably installed on the top of the clamping frames (9). The position adjustment assembly includes a rotating rod (3), two adjusting sliders (4), a first reducer (5), a drive motor (6), and two sets of guide sliders (7). An adjustment groove is provided at the top center of the worktable (1). The rotating rod (3) is rotatably installed in the adjustment groove. Threaded grooves are symmetrically provided at both ends of the rotating rod (3). Two adjusting sliders (4) are symmetrically screwed onto the outer wall of the rotating rod (3). The input end of the rotating rod (3) is connected to the output end of the first reducer (5). The first reducer (5) is installed on the left side wall of the worktable (1). The input end of the first reducer (5) is connected to the output end of the drive motor (6). The top of the adjusting slider (4) is connected to the bottom of the mounting plate (27). Guide grooves are symmetrically provided on the top of the worktable (1) about the adjustment groove. Guide sliders (7) are symmetrically installed on the bottom of the mounting plate (27). Two sets of guide sliders (7) are slidably installed in the guide grooves respectively. The moving assembly includes two threaded rods (13), two second reducers (14), a dual-output motor (15), a moving frame (16), two moving blocks (17), two sets of first connecting plates (18), two support slide rods (19), and two support sliders (20). Moving grooves are provided on the front and rear side walls of the worktable (1). The threaded rods (13) are rotatably installed in the moving grooves. The input end of the threaded rods (13) is connected to the output end of the second reducers (14). The dual-output motor (15) is installed on the right side wall of the worktable (1). The output ends of the motor (15) on both sides are connected to the input end of the second reducer (14). The moving block (17) is slidably installed in the moving slide groove and screwed onto the outer wall of the threaded rod (13). The bottom front and rear ends of the moving frame (16) are connected to the moving block (17). The bottom front and rear ends of the worktable (1) are symmetrically installed with first connecting plates (18) on both sides. A support slide rod (19) is installed between the two first connecting plates (18). The support slider (20) is slidably installed on the support slide rod (19). The bottom of the moving frame (16) is connected to the support slider (20).

2. The gear pump shaft straightening device as described in claim 1, characterized in that, The straightening assembly includes a straightening hydraulic cylinder (21), a protrusion (22), and two limiting guide rods (23). The straightening hydraulic cylinder (21) is installed at the top center of the moving frame (16). The protrusion (22) is installed at the bottom of the straightening hydraulic cylinder (21). The limiting guide rods (23) are symmetrically installed at the front and rear ends of the protrusion (22). The limiting guide rods (23) are slidably installed on the top of the moving frame (16).

3. The gear pump shaft straightening device as described in claim 1, characterized in that, It also includes a connecting plate (24), two supporting hydraulic cylinders (25) and two supporting blocks (26). The connecting plate (24) connects the front and rear ends of the moving frame (16). The connecting plate (24) slides on the top of the workbench (1). Supporting hydraulic cylinders (25) are installed on the left and right ends of the middle part of the connecting plate (24). Supporting blocks (26) are installed on the top of the supporting hydraulic cylinders (25).

Citation Information

Patent Citations

  • Pump shaft coalignment

    CN208288713U