Hydraulic generator servomotor fork pin removing tool

Abstract

The utility model discloses a hydraulic generator servomotor fork head pin dismantling tool which comprises a hydraulic generator servomotor body, a fork head pin body is inserted in the middle of the hydraulic generator servomotor body, a pulling-out mechanism is arranged on the top of the hydraulic generator servomotor body, a fixing mechanism is arranged on the outer side of the fork head pin body, and an ejection mechanism is arranged under the fork head pin body. The fixing mechanism comprises an upper disc, the middle of the upper disc is fixedly connected with a small motor, the output end of the small motor is fixedly connected with a rotating disc, a plurality of arc-shaped grooves are formed in the rotating disc, clamping plates are slidably connected into the arc-shaped grooves, the bottom of the upper disc is fixedly connected with a lower disc through fixing columns, and a plurality of linear sliding grooves are formed in the lower disc. A part of the fork head pin body is firstly ejected out of the servomotor body through the ejection mechanism, force needed in the follow-up pulling-out process is effectively reduced, the fork head pin body can be conveniently fixed in the follow-up process, a foundation is provided for final pulling-out, and the fork head pin body is prevented from being damaged when being forcibly pulled out.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment maintenance technology, specifically a tool for removing the fork pin of a hydro-generator relay. Background Technology

[0002] As the core equipment of a hydroelectric power station, the stable operation of the turbine generator is crucial to the reliability of the entire power system. Within the generator set, the relay unit is a key device for achieving linkage and regulation during operation. It is responsible for accurately transferring the mechanical energy of the turbine to the generator set and ensuring the coordinated operation of all components. The fork pin in the relay unit is an important component. As a core part connecting key components, it undertakes high-frequency load transfer tasks and must withstand long-term high-load operation, complex vibrations, and the influence of external environments such as humidity changes, temperature differences, and corrosion from impurities in the water.

[0003] However, current methods for removing fork pins still primarily rely on manual operation or simple mechanical tools, and these traditional methods have several shortcomings. First, they are difficult to operate, often requiring considerable time and effort, yet failing to achieve efficient removal. Second, traditional methods, which involve hammering or pulling out the pin directly with external force, can easily lead to uneven force distribution, potentially damaging not only the fork pin itself but also surrounding components. Furthermore, these methods typically cannot achieve precise clamping of the pin or phased disassembly, making the disassembly process time-consuming and labor-intensive. Utility Model Content

[0004] The purpose of this utility model is to provide a tool for removing the fork pin of a hydro-generator relay, so as to solve the problems of high difficulty in disassembling the fork pin and easy damage to the fork pin body mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tool for removing the fork pin of a hydro-generator relay, comprising a hydro-generator relay body and the ground below the hydro-generator relay body, wherein a fork pin body is inserted into the middle of the hydro-generator relay body, a pull-out mechanism is provided at the top of the hydro-generator relay body, a fixing mechanism is provided on the outside of the fork pin body, and a push-out mechanism is provided at the top of the ground and directly below the fork pin body; the fixing mechanism includes an upper disc, a small motor is fixedly connected to the middle of the upper disc, a turntable is fixedly connected to the output end of the small motor, multiple arc-shaped grooves are opened inside the turntable, clamps are slidably connected inside the arc-shaped grooves, and a lower disc is fixedly connected to the bottom of the upper disc through a fixing column, and multiple straight sliding grooves are opened inside the lower disc.

[0006] Preferably, the ejection mechanism includes a base, with two rotating shafts symmetrically distributed inside the base. A slider is rotatably connected to one end of the rotating shaft away from the base. A second rotating shaft is rotatably connected inside the slider. A circular column is rotatably connected to the outer side of the second rotating shaft. A bidirectional lead screw is threaded inside the slider.

[0007] Preferably, the extraction mechanism includes a base two, a hollow column is fixedly connected to the top of the base two, a sliding column is slidably connected inside the hollow column, a U-shaped shell is fixedly connected to the top of the sliding column, a pry bar is rotatably connected inside the U-shaped shell, a connecting column is fixedly connected to one end of the pry bar, a steel ring chain is fixedly connected to both ends of the connecting column, and the bottom of the steel ring chain is fixedly connected to the top of the upper disc.

[0008] Preferably, the hollow column is provided with an adjustment component, which includes a bolt. The sliding column has multiple circular holes on its outer side, and the bolt is threaded into one of the circular holes.

[0009] Preferably, the clamping plate is slidably connected inside the linear groove, and the inner side of the clamping plate abuts against the outer side of the fork pin body.

[0010] Preferably, the top of the circular column abuts against the bottom of the fork pin body, and a handle is installed inside the bidirectional lead screw.

[0011] Preferably, the second base is placed on top of the main body of the hydro-generator relay.

[0012] Preferably, the contact surface between the clamping plate and the fork pin body is equipped with an anti-slip rubber pad.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This hydro-generator servo fork pin removal tool uses an ejection mechanism to partially eject the fork pin body from the servo body, effectively reducing the force required for subsequent pulling out and facilitating the subsequent fixing of the fork pin body, providing a foundation for final pulling out and preventing damage to the fork pin body when forcibly pulled out.

[0015] 2. This hydro-generator relay fork pin removal tool uses a fixing mechanism to clamp the fork pin body, ensuring its stability during subsequent pull-out. The clamping plate slides smoothly under the guidance of the turntable and linear slide, gradually approaching and clamping the fork pin body. At the same time, the anti-slip rubber pad on the inner side of the clamping plate increases the friction, effectively preventing slippage and loosening, and protecting the pin shaft surface from damage during the pull-out process.

[0016] 3. This tool for removing the fork pin of the hydro-generator relay unit uses bolts and circular holes to adjust the height of the sliding column, setting the extraction mechanism in the appropriate position. Then, using the lever principle of the pry bar, the force is transmitted to the fixing mechanism through the connecting column and steel ring chain, so as to gradually pull out the main body of the fork pin. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the lifting mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the main structure of the hydro-generator relay device of this utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of the fixing mechanism of this utility model;

[0021] Figure 5 for Figure 4 Enlarged diagram of point A in the middle.

[0022] In the diagram: 1. U-shaped shell; 2. Hollow column; 3. Base 1; 4. Ground; 5. Main body of the hydro-generator relay; 6. Upper disc; 7. Pry bar; 8. Shaft 1; 9. Slider; 10. Handle; 11. Two-way lead screw; 12. Shaft 2; 13. Circular column; 14. Fork pin main body; 15. Sliding column; 16. Circular hole; 17. Bolt; 18. Base 2; 19. Steel ring chain; 20. Connecting column; 21. Small motor; 22. Arc groove; 23. Turntable; 24. Fixed column; 25. Straight slide; 26. Clamping plate; 27. Lower disc. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-5This embodiment discloses a tool for removing the fork pin of a hydro-generator servo drive, comprising a hydro-generator servo drive body 5 and a ground 4 located below the hydro-generator servo drive body 5. A fork pin body 14 is inserted into the middle of the hydro-generator servo drive body 5. A pull-out mechanism is provided at the top of the hydro-generator servo drive body 5, and a fixing mechanism is provided on the outside of the fork pin body 14. A push-out mechanism is provided at the top of the ground 4 and directly below the fork pin body 14. The fixing mechanism includes an upper disc 6, with a fixed portion in the middle. A small motor 21 is fixedly connected to the upper disc 6, and a turntable 23 is fixedly connected to the output end of the small motor 21. Multiple arc-shaped grooves 22 are formed inside the turntable 23, and clamping plates 26 are slidably connected inside the arc-shaped grooves 22. A lower disc 27 is fixedly connected to the bottom of the upper disc 6 via a fixing post 24. Multiple straight sliding grooves 25 are formed inside the lower disc 27. Specifically, anti-slip rubber pads are installed on the contact surface between the clamping plates 26 and the fork pin body 14. The clamping plates 26 are slidably connected inside the straight sliding grooves 25, and the inner side of the clamping plates 26 abuts against the outer side of the fork pin body 14. The fork pin body 14 is the target part for disassembly operations. It is fixed by the clamping plates 26 and removed using a pull-out and ejection mechanism. The upper disc 6 connects the fixing mechanism and the pull-out mechanism, ensuring that after the fixing mechanism fixes the fork pin body 14, it can be pulled out using the pull-out mechanism. A small motor 21 is used to drive the turntable 23 to rotate, so that the clamping plates 26 slide in the arc groove 22 on the turntable 23. Then, under the limit of the straight slide groove 25, each clamping plate 26 will gradually move towards the center until the fork pin body 14 is fixed. Anti-slip rubber pads are installed on the clamping plates 26 to increase the friction between the clamping plates 26 and the surface of the fork pin body 14 when the fork pin body 14 is pulled up, so as to make the fixation more stable.

[0025] In the above embodiment, the ejection mechanism includes a base 3. Two symmetrically distributed rotating shafts 8 are rotatably connected inside the base 3. A slider 9 is rotatably connected to the end of each rotating shaft 8 away from the base 3. A second rotating shaft 12 is rotatably connected inside the slider 9. A circular column 13 is rotatably connected to the outer side of the second rotating shaft 12. A double-acting screw 11 is threaded inside the slider 9. The top of the circular column 13 abuts against the bottom of the fork pin body 14. A handle 10 is installed inside the double-acting screw 11. The base 3 supports all the connections at its top, ensuring stable placement on the ground 4. By rotating the handle 10, the double-acting screw 11 begins to rotate, causing the two sliders 9 to gradually move closer together. Consequently, the angle between the rotating shafts 8 and 12 and the ground 4 gradually increases, thereby driving the circular column 13 to lift the fork pin body 14.

[0026] In the above embodiment, the pull-out mechanism includes a second base 18, with a hollow column 2 fixedly connected to the top of the second base 18. A sliding column 15 is slidably connected inside the hollow column 2, and a U-shaped shell 1 is fixedly connected to the top of the sliding column 15. A pry bar 7 is rotatably connected inside the U-shaped shell 1. A connecting column 20 is fixedly connected to one end of the pry bar 7, and steel ring chains 19 are fixedly connected to both ends of the connecting column 20. The bottom of the steel ring chains 19 is fixedly connected to the top of the upper disc 6. The second base 18 is placed on top of the main body 5 of the hydro-generator relay. The second base 18 is used to support the various parts on its top to ensure stability during use. The hollow column 2 provides a sliding space for adjusting the height of the sliding column 15. The U-shaped shell 1 is used to ensure the rotation of the pry bar 7. The pry bar 7, the connecting column 20, and the steel ring chains 19 are used to connect the entire fixing mechanism, using the lever principle to pull out the fork pin body 14.

[0027] In this embodiment, the hollow column 2 is provided with an adjustment component, which includes a bolt 17. The sliding column 15 has multiple circular holes 16 on its outer side. The bolt 17 is threaded into a circular hole 16. The bolt 17 is used to cooperate with the circular hole 16 to adjust the height of the sliding column 15, thereby enhancing the practicality of the entire device.

[0028] Working Principle: This utility model's tool for removing the fork pin of a hydro-generator relay unit first correctly positions the ejector mechanism directly below the fork pin body 14 when removing the fork pin body 14 from the main body 5 of the hydro-generator relay unit. Then, by rotating the handle 10, the double-acting screw 11 is driven. As the double-acting screw 11 rotates, the two sliders 9 gradually move towards the center of the assembly. Simultaneously, the first rotating shaft 8 and the second rotating shaft 12 gradually rise, thereby driving the circular column 13 to lift the fork pin body 14 upwards. Once the fork pin body 14 has been ejected to a certain height, it is securely fixed using the fixing mechanism. Next, the clamping plate 26 is placed on the outside of the fork pin body 14, and the small motor 21 is started. The small motor 21 drives the turntable 23 to rotate, causing the clamping plate 26 to slide along the arc-shaped groove 22 inside the turntable 23. Simultaneously, guided by the linear groove 25 on the lower disc 27, the clamping plate 26 slides along a controlled path inside the upper disc 6, gradually moving towards the center until the fork pin body 14 is firmly fixed. Then, by adjusting the bolt 17 and the sliding post 15, the various circular holes 16 on the sliding post 15 are aligned to the appropriate height. Finally, the pry bar 7 is pressed down, applying force using the lever principle to gradually pull out the fork pin body 14, completing the disassembly operation.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] 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 tool for removing the fork pin of a hydro-generator servo drive, comprising a hydro-generator servo drive body (5) and ground (4) located below the hydro-generator servo drive body (5), characterized in that: The main body (5) of the hydro-generator relay is connected to the middle of the fork pin body (14), the top of the main body (5) of the hydro-generator relay is provided with a pull-out mechanism, the outside of the fork pin body (14) is provided with a fixing mechanism, and the top of the ground (4) and directly below the fork pin body (14) is provided with a push-out mechanism; the fixing mechanism includes an upper disc (6), the middle of the upper disc (6) is fixedly connected to a small motor (21), the output end of the small motor (21) is fixedly connected to a turntable (23), the turntable (23) has multiple arc grooves (22) inside, the arc grooves (22) are slidably connected to a clamping plate (26), the bottom of the upper disc (6) is fixedly connected to a lower disc (27) through a fixing column (24), and the lower disc (27) has multiple straight sliding grooves (25) inside.

2. The tool for removing the fork pin of a hydro-generator relay as described in claim 1, characterized in that: The ejection mechanism includes a base (3), which has two rotating shafts (8) rotatably connected inside and symmetrically distributed. A slider (9) is rotatably connected to one end of the rotating shaft (8) away from the base (3). A rotating shaft (12) is rotatably connected inside the slider (9). A circular column (13) is rotatably connected to the outside of the rotating shaft (12). A two-way lead screw (11) is threaded inside the slider (9).

3. The tool for removing the fork pin of a hydro-generator relay as described in claim 1, characterized in that: The extraction mechanism includes a base two (18), a hollow column (2) is fixedly connected to the top of the base two (18), a sliding column (15) is slidably connected inside the hollow column (2), a U-shaped shell (1) is fixedly connected to the top of the sliding column (15), a pry bar (7) is rotatably connected inside the U-shaped shell (1), a connecting column (20) is fixedly connected to one end of the pry bar (7), a steel ring chain (19) is fixedly connected to both ends of the connecting column (20), and the bottom of the steel ring chain (19) is fixedly connected to the top of the upper disc (6).

4. The tool for removing the fork pin of a hydro-generator relay according to claim 3, characterized in that: The hollow column (2) is provided with an adjustment component, which includes a bolt (17). The sliding column (15) has multiple circular holes (16) on its outer side, and the bolt (17) is threaded into one of the circular holes (16).

5. The tool for removing the fork pin of a hydro-generator relay as described in claim 1, characterized in that: The clamping plate (26) is slidably connected inside the linear slide groove (25), and the inner side of the clamping plate (26) abuts against the outer side of the fork pin body (14).

6. The tool for removing the fork pin of a hydro-generator relay according to claim 2, characterized in that: The top of the circular column (13) abuts against the bottom of the fork pin body (14), and a handle (10) is installed inside the double-acting screw (11).

7. The tool for removing the fork pin of a hydro-generator relay as described in claim 3, characterized in that: The second base (18) is placed on top of the main body (5) of the hydro-generator relay.

8. The tool for removing the fork pin of a hydro-generator relay according to claim 1, characterized in that: The contact surface between the clamp plate (26) and the fork pin body (14) is equipped with an anti-slip rubber pad.

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