Separation auxiliary tool based on coupling of vertical water-turbine generator set
By designing the separation auxiliary tool for the vertical hydrowheel generator set, the ring seat and the locking mechanism are used to achieve rapid separation of flanges, which solves the separation difficulties caused by flange corrosion during the maintenance of hydrowheel generators, and improves maintenance efficiency and safety.
Patent Information
- Application Number
- CN202422436953.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-10-10
AI Technical Summary
During the maintenance of the water turbine generator, water enters the flange surface through the hollow spindle, causing rust, resulting in the inability to separate the generator shaft and the turbine shaft in time, affecting the maintenance progress and increasing costs. The traditional separation method is time-consuming and labor-intensive and difficult to operate in a narrow space.
A separation auxiliary tool based on the backrest wheel of the vertical hydrowheel generator set is designed, including ring seat, fastening ring, lifting groove, lifting ring, limiting ring, elastic components and locking mechanism. Through simple operations such as lifting the lifting ring and rotating thread column, the flange is quickly separated to ensure the stable clamping of the thread column under complex working conditions.
This tool simplifies the operation process, reduces the possibility of misoperation, improves the stability and speed of separation, saves disassembly and assembly time, and is especially suitable for use in space-constrained environments.
Smart Images

Figure CN223160865U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vertical water turbine generator sets, and particularly relates to a separation auxiliary tool based on a back-to-back wheel of a vertical water turbine generator set. Background Technique
[0002] As is well known, a water turbine generator refers to a generator that converts water energy into electrical energy with a water turbine as the prime mover. When water flows through the water turbine, the water energy is converted into mechanical energy. The rotating shaft of the water turbine drives the rotor of the generator, converting the mechanical energy into electrical energy and outputting it. It is the main power equipment for a hydropower station to produce electrical energy. Among them, the main shaft of the water turbine adopts a double-flange structure, with the upper flange connecting to the main shaft of the generator and the lower flange connecting to the runner. However, during the overhaul of the water turbine generator, water often enters the flange surface through the hollow main shaft, resulting in rust, which causes the generator shaft and the water turbine shaft to be unable to be actively separated. If the back-to-back wheel cannot be separated in time, it will affect the subsequent progress of hoisting the rotor, thus prolonging the overhaul period, greatly increasing the overhaul cost and the loss of manpower and material resources. Traditional separation methods are often time-consuming and laborious, and the operation difficulty is relatively large in a narrow space, easily leading to low work efficiency. Therefore, it is necessary to propose a solution to this technical problem. Content of the Utility Model
[0003] (1) Technical Problems to be Solved
[0004] In view of the deficiencies of the prior art, the utility model provides a separation auxiliary tool based on a back-to-back wheel of a vertical water turbine generator set.
[0005] (2) Technical Solutions
[0006] To achieve the above object, the utility model provides the following technical solution: A separation auxiliary tool based on a back-to-back wheel of a vertical water turbine generator set, including a ring seat, a fastening ring is provided on the ring seat, a lifting groove is opened at the top end of the fastening ring, a lifting ring is provided on the lifting groove, a fastening groove is opened at the bottom end of the lifting groove, a limiting ring is provided between the fastening groove and the lifting ring, an elastic member is connected between the top end of the fastening groove and the limiting ring, a toothed ring is provided at the bottom end of the limiting ring, a locking mechanism is provided on one side of the fastening ring, the locking mechanism includes a threaded hole and an opening, a threaded column is provided on the threaded hole, the opening is opened on the inner side of the fastening ring, a gear is provided on the threaded column, the gear is located in the fastening groove, the toothed ring is meshed and abutted against the gear, a plurality of locking mechanisms are provided and arranged in a circular array, an adjusting hole is opened at the top end of the fastening ring, a threaded shaft is provided on the adjusting hole, and a support block is provided at the bottom end of the threaded shaft.
[0007] Further, the utility model is improved in that two adjusting holes are provided and are symmetrically arranged.
[0008] Furthermore, the present utility model is improved in that a plurality of elastic members are provided and arranged in an annular array, and the elastic members are alloy springs.
[0009] Furthermore, the present utility model is improved in that a handle is provided at the top end of the lifting ring.
[0010] Furthermore, the present utility model is improved in that a plurality of handles are provided.
[0011] Furthermore, the present utility model is improved in that a clamping block is provided at one end of the threaded column.
[0012] Furthermore, the present utility model is improved in that an arc groove is formed at one end of the clamping block, and anti-slip tooth patterns are provided on the arc groove.
[0013] Furthermore, the present utility model is improved in that grip handles are provided on both the threaded column and the threaded shaft.
[0014] (III) Beneficial Effects
[0015] Compared with the prior art, the present utility model provides a separation auxiliary tool for the back wheel of a vertical water turbine generator set, having the following beneficial effects:
[0016] For the separation auxiliary tool for the back wheel of the vertical water turbine generator set, the staff only needs to perform several simple actions such as lifting the lifting ring and rotating the threaded column to complete the entire separation process, greatly simplifying the operation process. By observing the position changes of the lifting ring and the limiting ring, the staff can intuitively judge whether the operation is in place, reducing the possibility of misoperation. By supporting the limiting ring with the elastic member, it is ensured that the threaded column will not become loose due to vibration or other reasons during the separation process, enhancing the stability of the overall structure. The cooperation between the threaded column and the threaded hole, as well as the design that one end of the threaded column abuts against the flange through the opening, ensure that the threaded column can maintain a firm clamping state even under complex working conditions. By rotating the threaded shaft on the adjustment hole to drive the support block, and then making the ring seat drive the flange to move, this design makes the separation of the flange faster, saving a large amount of disassembly and assembly time. The tool has a compact structure and occupies a small space, and is especially suitable for use in environments with limited space, such as inside a closed power station. Due to its small size and light weight, the tool is easy to carry and store, facilitating on-site operations. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 Structural schematic of the present utility model Figure 1 ;
[0018] Figure 2 Structural schematic of the present utility model Figure 2 ;
[0019] Figure 3This is the front elevation half-sectional view of the structure of the present utility model;
[0020] Figure 4 This is the top plan half-sectional view of the structure of the present utility model.
[0021] In the figure: 1, ring seat; 2, fastening ring; 3, lifting ring; 4, fastening ring groove; 5, limiting ring; 6, elastic member; 7, toothed ring; 8, threaded column; 9, gear; 10, threaded shaft; 11, support block; 12, handle; 13, clamping block; 14, grip. Detailed implementation manners
[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0023] Please refer to Figures 1-4, the utility model is a separation auxiliary tool based on the back wheel of a vertical water turbine generator set, including a ring seat 1. A fastening ring 2 is provided on the ring seat 1. A lifting groove is opened at the top of the fastening ring 2. A lifting ring 3 is provided on the lifting groove. A fastening groove is opened at the bottom of the lifting groove. A limiting ring 5 is provided between the fastening groove and the lifting ring 3. An elastic member 6 is connected between the top of the fastening groove and the limiting ring 5. A toothed ring 7 is provided at the bottom of the limiting ring 5. A locking mechanism is provided on one side of the fastening ring 2. The locking mechanism includes a threaded hole and an opening. A threaded post 8 is provided on the threaded hole. The opening is opened on the inner side of the fastening ring 2. A gear 9 is provided on the threaded post 8. The gear 9 is located in the fastening groove. The toothed ring 7 meshes and abuts against the gear 9. A plurality of locking mechanisms are provided and arranged in a circular array. An adjusting hole is opened at the top of the fastening ring 2. A threaded shaft 10 is provided on the adjusting hole. A support block 11 is provided at the bottom of the threaded shaft 10. In this embodiment, the ring seat 1 is abutted against the end shell of the equipment. Then, by lifting the lifting ring 3, the lifting ring 3 drives the limiting ring 5 to move upward, so that the toothed ring 7 of the limiting ring 5 leaves the gear 9 of the threaded post 8 in a plurality of locking mechanisms. Then, the threaded post 8 of the threaded hole in the locking mechanism is rotated, so that the threaded post 8 rotates and moves in the threaded hole. One end of the threaded post 8 abuts against the flange passing through the ring seat 1 through the opening. The outer side of the flange can be locked through a plurality of locking mechanisms. The fastening ring 2 is loosened, so that the elastic member 6 elastically supports the limiting ring 5, and the toothed ring 7 meshes and abuts against the gear 9, and the situation of loosening of the threaded post 8 will not occur, ensuring the stable reliability of the clamping of the threaded post 8. Then, the operator rotates the threaded shaft 10 on the adjusting hole, the threaded shaft 10 rotates and moves, and the threaded shaft 10 drives the support block 11 to rotate and move, so as to realize the movement of the ring seat 1 driving the flange, so that the flange moves, so that the motor shaft and the water turbine shaft are separated, an external force is added between the two flanges of the back wheel, the mating surfaces of the generator shaft and the water turbine shaft are disengaged, and finally the flanges of the back wheel are separated. This structure is small and convenient, can reduce the occupied space and is convenient for quickly disengaging the flange.
[0024] In this solution, two adjusting holes are provided and symmetrically arranged. By means of the threaded shafts 10 in the two symmetrically arranged adjusting holes, it is convenient for the support block 11 to support the outer shell of the equipment, so as to better generate a separating force between the flanges.
[0025] In this solution, a plurality of elastic members 6 are provided and arranged in a circular array. The elastic members 6 are alloy springs. By means of the alloy springs of the plurality of elastic members 6 arranged in a circular array, better elastic support force can be provided for the limiting ring 5, ensuring that the toothed ring 7 better meshes and abuts against the gear 9.
[0026] In this solution, a handle 12 is provided at the top of the lifting ring 3. By holding the handle 12, it is convenient for the operator to lift the lifting ring 3.
[0027] In this solution, a plurality of handles 12 are provided. The handles 12 of the plurality of lifting rings 3 can facilitate lifting and pulling the lifting rings 3.
[0028] In this solution, a clamping block 13 is provided at one end of the threaded column 8. The clamping block 13 at one end of the threaded column 8 can better clamp the flange.
[0029] In this solution, an arc groove is formed at one end of the clamping block 13, and anti-slip tooth patterns are provided on the arc groove. The arc groove at one end of the clamping block 13 can be more firmly abutted against the flange, and the anti-slip tooth patterns on the arc groove can improve the anti-slip performance of the arc groove, so that the clamping block 13 can better clamp the flange.
[0030] In this solution, gripping handles 14 are provided on both the threaded column 8 and the threaded shaft 10. By holding the gripping handles 14, it is convenient to rotate the threaded column 8 or the threaded shaft 10.
[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A separation auxiliary tool based on a back coupling of a vertical water turbine generator set, comprising a ring seat (1), wherein a fastening ring (2) is arranged on the ring seat (1), and is characterized in that, A lifting groove is formed at the top end of the fastening ring (2), and a lifting ring (3) is arranged on the lifting groove. A fastening groove is formed at the bottom end of the lifting groove. A limiting ring (5) is arranged between the fastening groove and the lifting ring (3). An elastic component (6) is connected between the top end of the fastening groove and the limiting ring (5). A toothed ring (7) is arranged at the bottom end of the limiting ring (5). A locking mechanism is arranged on one side of the fastening ring (2). The locking mechanism includes a threaded hole and an opening. A threaded column (8) is arranged on the threaded hole. The opening is formed on the inner side of the fastening ring (2). A gear (9) is arranged on the threaded column (8). The gear (9) is located in the fastening groove. The toothed ring (7) is meshed and abutted against the gear (9). A plurality of locking mechanisms are arranged and are annularly and arrayedly arranged. An adjusting hole is formed at the top end of the fastening ring (2). A threaded shaft (10) is arranged on the adjusting hole. A support block (11) is arranged at the bottom end of the threaded shaft (10).
2. The separation auxiliary tool for the back wheel of a vertical water turbine generator set according to claim 1, characterized in that, There are two adjusting holes and they are symmetrically arranged.
3. The separation auxiliary tool for the back-to-back wheels of a vertical water turbine generator set according to claim 2, characterized in that, A plurality of elastic components (6) are arranged and are annularly and arrayedly arranged. The elastic components (6) are alloy springs.
4. The separation auxiliary tool for the back wheel of a vertical water turbine generator set according to claim 3, characterized in that, A handle (12) is arranged at the top end of the lifting ring (3).
5. The separation auxiliary tool for the back-to-back wheels of a vertical water turbine generator set according to claim 4, characterized in that There are a plurality of handles (12).
6. The separation auxiliary tool for the back wheel of a vertical water turbine generator set according to claim 5, characterized in that, A clamping block (13) is arranged at one end of the threaded column (8).
7. An auxiliary separation tool for a back wheel of a vertical water turbine generator set according to claim 6, characterized in that, An arc groove is formed at one end of the clamping block (13), and anti-slip tooth patterns are arranged on the arc groove.
8. The separation auxiliary tool for the back wheel of a vertical water turbine generator set according to claim 7, characterized in that, Grip handles (14) are arranged on both the threaded column (8) and the threaded shaft (10).