Pin taking device for overhaul of rotating machine
By designing a closed box and a limiting plate fixing structure, the problem of damage to the pin remover during machine maintenance when idle was solved, thus achieving protection and efficient operation of the pin remover.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 徐海洋
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-15
AI Technical Summary
The existing rotary maintenance pin remover is not protected when not in use and is susceptible to dust, moisture corrosion and impact damage, affecting accuracy and safety.
A rotary maintenance pin remover was designed, comprising a housing, a fixing block, a limiting plate, a slide groove, and a reset assembly. The pin remover head is enclosed by the housing, and the pin remover head is fixed by the limiting plate and the fixing rod. The spring enables efficient rebound of the handle, preventing damage and improving operating efficiency.
It effectively protects the pin pick from external damage, improves equipment accuracy and safety, simplifies operation procedures, and increases the efficiency of maintenance work.
Smart Images
Figure CN224239464U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pin removal tooling structure technology, and in particular to a pin removal device for rotating machine maintenance. Background Technology
[0002] The rotating equipment maintenance pin remover is a special tool for removing and installing pins during the maintenance of rotating equipment in the power industry and industrial manufacturing fields. It has significant advantages such as high efficiency, labor saving, equipment protection, strong versatility and high safety.
[0003] A typical pin removal tool for machine maintenance consists of a pin removal head, operating handle, transmission mechanism, fixing device, buffer and reset components. The pin removal tool works based on three principles: hydraulic transmission, lever transmission, and electromagnetic adsorption. Hydraulic transmission uses a hydraulic device to generate a strong and stable force to handle difficult-to-remove pins. Lever transmission utilizes force amplification to achieve flexible operation. Electromagnetic adsorption relies on a magnetic field to attract and precisely control the adsorption force, meeting the needs of pin removal and installation under different working conditions.
[0004] Existing rotary machine maintenance pin removers fail to protect the equipment when not in use. Exposed pin removers are susceptible to dust, moisture, and impact, leading to rust and wear, which reduces equipment accuracy. This not only affects the accuracy of pin removal operations but also causes secondary damage to the rotary machine. Furthermore, unprotected pin removers pose safety hazards, as their sharp parts can easily injure operators, and damaged parts can cause malfunctions during use, threatening operational safety. Therefore, a rotary machine maintenance pin remover is proposed to address these issues. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a rotating maintenance pin remover, which aims to improve the problem that the existing technology cannot achieve protection when the maintenance pin remover is not used.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A rotating machine maintenance pin remover includes a housing, three fixing blocks are fixedly connected inside the housing, a limiting plate is rotatably connected inside each of the three fixing blocks, a fixing rod is fixedly connected to the end of the limiting plate away from the fixing block, a rotating plate is rotatably connected inside the fixing block, a handle is slidably connected inside the housing, and a reset component is fixedly connected to the inner side of the handle.
[0008] As a further description of the above technical solution:
[0009] The reset assembly includes two fixing plates, the outer sides of which are fixedly connected to the outer side of the handle, a limiting ring is fixedly connected to the inner side of each fixing plate, and a spring is fixedly connected to the inside of each fixing plate.
[0010] As a further description of the above technical solution:
[0011] A pin head is fixedly connected to the top of the grip, and a fixing block two is fixedly connected to the inner side of the grip.
[0012] As a further description of the above technical solution:
[0013] The top of the second fixed block is slidably connected to a connecting plate, and the connecting plate has a sliding groove inside.
[0014] As a further description of the above technical solution:
[0015] The limiting plate has a groove inside, and the outer side of the rotating plate is slidably connected to the inside of the groove;
[0016] As a further description of the above technical solution:
[0017] The outer side of the fixing rod is slidably connected to the inside of the box body, and the outer side of the pin-removing head is slidably connected to the inside of the box body;
[0018] As a further description of the above technical solution:
[0019] A lid is rotatably connected to the outside of the box, and the top of the fixing block is slidably connected to the inside of the lid.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, the pin-removing head is protected by a box body, a limiting plate, a fixing rod, and a sliding groove. The box body provides a closed space for the pin-removing head, which can prevent the pin-removing head from being bumped, scratched, or otherwise physically damaged when not in use. The combination of the limiting plate, the fixing rod, and the sliding groove further secures the pin-removing head in the box body, preventing it from shaking and being damaged inside the box.
[0022] 2. In this utility model, the fixed plate, in conjunction with the limiting ring and the spring, achieves efficient rebound of the handle. The efficient rebound of the handle allows the handle to quickly return to its initial position after the operator releases it, facilitating the next operation. This can save operation time and improve the efficiency of maintenance work during frequent use of the pin remover. Attached Figure Description
[0023] Figure 1This is a three-dimensional schematic diagram of a rotary machine maintenance pin remover proposed in this utility model;
[0024] Figure 2 This is a schematic diagram of the structure of the fixing block of the rotating machine maintenance pin remover proposed in this utility model;
[0025] Figure 3 for Figure 1 Enlarged view of point A in the middle;
[0026] Figure 4 for Figure 1 Enlarged view of point B in the middle.
[0027] Legend:
[0028] 1. Box body; 2. Lid; 3. Handle; 4. Fixing plate; 5. Restricting ring; 6. Spring; 7. Fixing block one; 8. Rotating plate; 9. Restricting plate; 10. Fixing rod; 11. Slide groove; 12. Pin head; 13. Connecting plate; 14. Fixing block two; 15. Slide groove. Detailed Implementation
[0029] 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.
[0030] Reference Figures 1 to 3 This utility model provides an embodiment of a rotating machine repair pin remover, including a box body 1. The box body 1 provides an overall storage and protection space for the pin remover. Its regular internal structure provides an installation base and movement track for each component, preventing the pin remover head 12 and other components from being damaged by collisions, dust contamination, etc. when idle. A cover 2 is rotatably connected to the outside of the box body 1. The cover 2 can rotate and open and close around the connection part with the box body 1. When opened, it is convenient to take out the pin remover head 12. When closed, it can completely seal the inside of the box body 1, further strengthening the protection of the internal components.
[0031] The box body 1 is internally fixedly connected with three fixing blocks 7. The three fixing blocks 7 are evenly distributed inside the box body 1, providing stable support and rotation fulcrum for components such as the limiting plate 9, ensuring the reliability of the limiting structure. The top of the fixing block 7 is slidably connected inside the cover 2. When the cover 2 is opened or closed, the top of the fixing block 7 slides inside the cover 2, ensuring that the rotation of the cover 2 is smooth and stable, while also enhancing the stability of the cover 2 when it is closed.
[0032] Each of the three fixed blocks 7 has a rotatable limiting plate 9 inside. The limiting plate 9 can rotate flexibly around the fixed block 7. In the storage state, it cooperates with the rotating plate 8 and the fixed rod 10 to firmly restrict the pin 12 inside the box 1, preventing it from shaking or accidentally slipping out. The limiting plate 9 has a sliding groove 11 inside, which provides a sliding track for the rotating plate 8. By sliding the rotating plate 8 in the sliding groove 11, the rotation angle of the limiting plate 9 can be controlled, thereby determining whether to release the restriction on the pin 12.
[0033] A fixing rod 10 is fixedly connected to the end of the limiting plate 9 away from the fixing block 7. The fixing rod 10 slides inside the box 1 as the limiting plate 9 rotates, inserting or disengaging into specific positions, acting as a "lock". When the fixing rod 10 is inserted into the corresponding position, it cooperates with the box 1 to fix the limiting plate 9, strengthening the fixing effect on the pin 12. The outer side of the fixing rod 10 is slidably connected to the inside of the box 1. Its smooth sliding performance ensures the continuity of the rotation operation of the limiting plate 9, making the fixing and releasing operation of the pin 12 convenient and efficient.
[0034] The fixed block 7 is internally connected to a rotating plate 8, which can rotate flexibly around the fixed block 7. Through cooperation with the slide groove 11, the rotation of the limiting plate 9 is precisely controlled, realizing the switching of locking and unlocking functions for the pin 12. The outer side of the rotating plate 8 is slidably connected to the inside of the slide groove 11. During the sliding process of the rotating plate 8, it pushes the limiting plate 9 to rotate, while it is also constrained by the limit of the slide groove 11, ensuring the accuracy and stability of the operation.
[0035] A handle 3 is slidably connected inside the box body 1. The handle 3 can slide in a specific direction inside the box body 1, making it convenient for staff to pick up and store the pins. The sliding process is smooth and there will be no jamming, ensuring smooth operation. A pin-removing head 12 is fixedly connected to the top of the handle 3. As a component that directly acts on the pin, the pin-removing head 12 is tightly connected to the handle 3. Under the action of the handle 3, the pin can be accurately disassembled and installed. The outer side of the pin-removing head 12 is slidably connected to the inside of the box body 1. The box body 1 provides a guiding function for the pin-removing head 12, ensuring that it maintains the correct direction and position during the sliding process and preventing deviation from affecting the use effect.
[0036] A fixing block 14 is fixedly connected to the inner side of the handle 3. The fixing block 14 provides installation support for components such as the connecting plate 13, making the structure inside the handle 3 more stable and ensuring that all components work together. The connecting plate 13 is slidably connected to the top of the fixing block 14. The connecting plate 13 can slide flexibly on the fixing block 14 and move in conjunction with the operation of the handle 3 to assist in the transmission of force and structural linkage during the pin removal process. The connecting plate 13 has a sliding groove 15 inside, which provides sliding space for the parts. When the pin remover is working, it cooperates with related components to realize the specific movement trajectory and function of the handle 3.
[0037] Reference Figure 1 , Figure 2 and Figure 4 A reset assembly is fixedly connected to the inner side of the handle 3. After the pin removal operation is completed, the handle 3 can quickly return to its initial position, preparing for the next operation and improving work efficiency. The reset assembly includes two fixing plates 4, which are symmetrically distributed on the outer side of the handle 3. They provide a mounting base for components such as the spring 6 and ensure the stability of the reset assembly structure. The outer sides of the two fixing plates 4 are fixedly connected to the outer side of the handle 3 and are tightly integrated with the handle 3 to ensure that the reset assembly will not loosen during operation and to ensure reliable operation of the reset function.
[0038] A limiting ring 5 is fixedly connected to the inner side of the fixed plate 4. The limiting ring 5 limits the spring 6, preventing the spring 6 from shifting or twisting during the extension and retraction process, ensuring the accurate extension and retraction direction of the spring 6, and making the return action of the grip 3 more stable and precise. The spring 6 is fixedly connected inside the fixed plate 4. When the grip 3 is gripped, the spring 6 is compressed and stores elastic potential energy. When the grip 3 is released, the spring 6 releases the elastic potential energy and pushes the grip 3 to return to its original position, providing stable and continuous power for the rebound of the grip 3.
[0039] Working principle: When the operator needs to use the pin-removing head 12, the cover 2 can be flipped over to open it. Then, the rotating plate 8 can be rotated so that its outer side aligns with the slide groove 11. The limiting plate 9 can then be rotated, causing the fixing rod 10 to move along with it. The pin-removing head 12 can then be removed using the handle 3. The pin-removing head 12 can be used with the handle 3. When the pin-removing head 12 needs to be placed back into the box body 1, the limiting plate 9 can be rotated back so that the rotating plate 8 passes through the slide groove 11. The fixing rod 10 can then be slid into the box body 1. The rotating plate 8 can then be rotated so that it rests horizontally on top of the limiting plate 9.
[0040] When using the pin remover 12, the spring 6 connected to the inside of the handle 3 is compressed by squeezing the two handles 3. When the handle 3 is released, the handle 3 will be pushed back to its original position by the compressed spring 6.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A rotating machine maintenance pin remover, comprising a housing (1), characterized in that: The box body (1) is fixedly connected to three fixing blocks (7) inside. Each of the three fixing blocks (7) is rotatably connected to a limiting plate (9). The end of the limiting plate (9) away from the fixing block (7) is fixedly connected to a fixing rod (10). The fixing block (7) is rotatably connected to a rotating plate (8). The box body (1) is slidably connected to a handle (3). The inside of the handle (3) is fixedly connected to a reset component.
2. The rotating machine maintenance pin remover according to claim 1, characterized in that: The reset assembly includes two fixed discs (4), the outer sides of the two fixed discs (4) are fixedly connected to the outer side of the handle (3), a limiting ring (5) is fixedly connected to the inner side of the fixed discs (4), and a spring (6) is fixedly connected to the inside of the fixed discs (4).
3. The rotating machine maintenance pin remover according to claim 1, characterized in that: The top of the grip (3) is fixedly connected to a pin head (12), and the inner side of the grip (3) is fixedly connected to a fixing block two (14).
4. The rotating machine maintenance pin remover according to claim 3, characterized in that: The top of the fixed block 2 (14) is slidably connected to a connecting plate (13), and a sliding groove (15) is provided inside the connecting plate (13).
5. A rotating machine maintenance pin remover according to claim 1, characterized in that: The limiting plate (9) has a groove (11) inside, and the outer side of the rotating plate (8) is slidably connected to the inside of the groove (11).
6. A rotating machine maintenance pin remover according to claim 3, characterized in that: The outer side of the fixing rod (10) is slidably connected to the inside of the box body (1), and the outer side of the pin-removing head (12) is slidably connected to the inside of the box body (1).
7. The rotating machine maintenance pin remover according to claim 1, characterized in that: The outer side of the box (1) is rotatably connected to a lid (2), and the top of the fixing block (7) is slidably connected to the inside of the lid (2).