Main shaft sliding bearing structure for wind generating set

Abstract

The utility model relates to a spindle sliding bearing structure for a wind generating set, which comprises a mounting bottom plate, two threaded holes are arranged on the upper end face of the mounting bottom plate, mounting bolts are in threaded connection with the interiors of the threaded holes, the upper end face of the mounting bottom plate is fixedly connected with a second mounting seat, and a first mounting seat is arranged at the upper end of the second mounting seat. Arc-shaped grooves are formed in the first mounting base and the second mounting base correspondingly, anti-skid pads are fixedly connected into the arc-shaped grooves, a main shaft bearing is arranged between the first mounting base and the second mounting base, fixing frames are fixedly connected to the left side face and the right side face of the second mounting base correspondingly, and first insertion openings are formed in the upper end faces of the fixing frames; the inner wall of the first inserting opening is slidably connected with a first inserting plate, and the upper end of the first inserting plate is fixedly connected with a fixing plate. According to the main shaft sliding bearing structure for the wind generating set, the main shaft and the sliding bearing structure of the wind generating set can be conveniently and rapidly disassembled and assembled, and the main shaft sliding bearing structure is practical.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation technology, and in particular to a sliding bearing structure for the main shaft of a wind turbine generator set. Background Technology

[0002] In the field of wind power generation, the efficient and stable operation of wind turbine generators is crucial for energy supply. As one of the core components of a wind turbine generator, the performance and ease of maintenance of the main shaft sliding bearing directly affect the overall operating efficiency and cost of the unit. Traditional wind turbine generator main shaft sliding bearings have revealed numerous problems in practical applications. On the one hand, due to the limitations of their structural design, the installation and disassembly procedures are extremely complex. During installation, precise positioning and calibration of each component are required; any slight deviation can affect the normal operation of the bearing. This demands a high level of technical skill and experience from the installers and consumes a significant amount of time and effort. Disassembly often requires removing numerous related transmission system components and rotor assemblies, involving a large amount of bolt removal, component hoisting, and other tedious work. The entire process not only requires large lifting equipment and specialized tools but also faces the challenge of operating in confined spaces. On the other hand, the complex disassembly and assembly process significantly increases maintenance costs and downtime. Maintenance costs include not only labor and equipment costs but also replacement costs incurred due to potential damage to other components during disassembly and installation. Extended downtime translates to lost power generation, directly impacting the economic benefits of wind farms. Furthermore, frequent disassembly and assembly can cause wear and damage to the bearings and surrounding components, further reducing equipment lifespan and operational stability. Through a unique structural innovation, the bearing disassembly and assembly process is greatly simplified. Bearing replacement and installation can be completed quickly without dismantling the transmission system and rotor, significantly improving efficiency, effectively reducing maintenance costs and downtime, and providing strong support for the efficient and stable operation of wind turbine generators. Therefore, we propose a sliding bearing structure for the main shaft of wind turbine generators. Summary of the Invention

[0003] This utility model provides a sliding bearing structure for the main shaft of a wind turbine generator set, solving the technical problems mentioned in the prior art. The solution to the above-mentioned technical problems is as follows: It includes a mounting base plate with two threaded holes on its upper surface. Mounting bolts are threaded into the threaded holes. A second mounting seat is fixedly connected to the upper surface of the mounting base plate. A first mounting seat is located at the upper end of the second mounting seat. Both the first and second mounting seats have arc-shaped grooves inside, and anti-slip pads are fixedly connected inside the arc-shaped grooves. A main shaft bearing is located between the first and second mounting seats. Fixing frames are fixedly connected to the left and right sides of the second mounting seat. An insertion port is provided on the upper surface of the fixing frame. An insertion plate is slidably connected to the inner wall of the insertion port. A fixing plate is fixedly connected to the upper end of the insertion plate, and the fixing plate is fixedly connected to the surface of the first mounting seat. The insertion plate is limited and connected to the fixing frame by a limiting mechanism. Based on the above technical solution, this utility model can be further improved as follows. Furthermore, the limiting mechanism includes a second insert plate disposed inside the fixed frame, the second insert plate being slidably connected to the inner wall of the second insertion port on the surface of the first insert plate. Furthermore, limiting grooves are provided on both the upper and lower sides of the fixed frame, and limiting sliders are slidably connected to the inner walls of the limiting grooves, with one end of the limiting slider fixedly connected to the side of the second insert plate. Furthermore, a threaded groove is provided inside the second insert plate, and a threaded rod is threadedly connected inside the threaded groove. Furthermore, the threaded rod passes through the fixed frame and is rotatably connected to the through-part via a bearing, with one end of the threaded rod fixedly connected to a cross-shaped rotating block. The beneficial effects of this utility model are: This utility model provides a sliding bearing structure for the main shaft of a wind turbine generator set, which has the following advantages: Through the cooperative action of the mounting seat one, mounting seat two, fixed plate, fixed frame, insertion port one, insert plate one, limiting mechanism, and arc-shaped groove, the main shaft bearing can be quickly disassembled and installed, improving practicality. The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0004] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of a sliding bearing structure for the main shaft of a wind turbine generator set, provided in one embodiment of the present invention. Figure 2 for Figure 1A front sectional view of a sliding bearing structure for the main shaft of a wind turbine generator set is provided. Figure 3 for Figure 2 A magnified schematic diagram of a partial structure at point A in a sliding bearing structure for the main shaft of a wind turbine generator set; Figure 4 for Figure 1 A schematic diagram of mounting base two in a sliding bearing structure for the main shaft of a wind turbine generator set is provided. The components represented by each number in the attached diagram are listed below: 1. Mounting base one; 2. Main shaft bearing; 3. Mounting base two; 4. Cross-shaped rotating block; 5. Fixing bracket; 6. Threaded rod; 7. Fixing plate; 8. Insert plate one; 9. Insert plate two; 10. Limiting slider; 11. Mounting base plate; 12. Mounting bolt; 13. Anti-slip pad; 14. Threaded hole; 15. Insertion port one; 16. Insertion port two; 17. Threaded groove; 18. Limiting groove; 19. Arc-shaped groove. Detailed Implementation

[0005] The following is in conjunction with the appendix Figure 1-4 The principles and features of this utility model are described herein, and the examples given are only for explaining this utility model and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, only for the purpose of conveniently and clearly illustrating the embodiments of this utility model. It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in this specification of the utility model is for the purpose of describing particular embodiments only and is not intended to limit the utility model. As used herein, the term "and / or" includes any and all combinations of one or more of the related listed items. Figure 1-4As shown, this utility model provides a sliding bearing structure for the main shaft of a wind turbine generator set, including a mounting base plate 11. Two threaded holes 14 are formed on the upper surface of the mounting base plate 11, and mounting bolts 12 are threaded into the internal threads of the threaded holes 14. A mounting seat 2 3 is fixedly connected to the upper surface of the mounting base plate 11. A mounting seat 1 is provided at the upper end of the mounting seat 2 3. Both the mounting seat 1 1 and the mounting seat 2 3 have arc-shaped grooves 19 inside, and anti-slip pads 13 are fixedly connected inside the arc-shaped grooves 19. A main shaft bearing 2 is provided between the mounting seat 1 1 and the mounting seat 2 3. Fixing frames 5 are fixedly connected to the left and right sides of the mounting seat 2 3. A socket 15 is formed on the upper surface of the fixing frame 5. A insertion plate 8 is slidably connected to the inner wall of the socket 15. A fixing plate 7 is fixedly connected to the upper end of the insertion plate 8. The fixing plate 7 is fixedly connected to the surface of the mounting seat 1 1. The insertion plate 8 is limited and connected to the fixing frame 5 by a limiting mechanism. Preferably, the limiting mechanism includes a second insert plate 9 disposed inside the fixed frame 5, and the second insert plate 9 is slidably connected to the inner wall of the second insertion port 16 formed on the surface of the first insert plate 8. Preferably, the upper and lower sides of the fixed frame 5 are provided with limiting grooves 18, and the inner wall of the limiting grooves 18 is slidably connected to limiting sliders 10. One end of the limiting sliders 10 is fixedly connected to the side of the second insert plate 9. Under the action of the limiting sliders 10 and the limiting grooves 18, the second insert plate 9 can be limited to move. Preferably, the second insert plate 9 is provided with a threaded groove 17 inside, and a threaded rod 6 is threadedly connected inside the threaded groove 17. Preferably, the threaded rod 6 passes through the fixed frame 5 and is rotatably connected to the through part by a bearing, and one end of the threaded rod 6 is fixedly connected to a cross-shaped rotating block 4.The specific working principle and usage method of this utility model are as follows: This utility model provides a sliding bearing structure for the main shaft of a wind turbine generator set. In use, the mounting base plate 11 can be installed inside the wind turbine generator set using the mounting bolts 12 and the threaded holes 14 on the mounting base plate 11. Then, the main shaft bearing 2 of the wind turbine generator set is placed in the arc-shaped groove 19 inside the mounting seat 2 3. Then, mounting seat 1 is placed on mounting seat 2 3, and insert plate 8 is inserted into the fixing frame 5 through the insertion port 15. Then, the cross-shaped rotating block 4 is rotated to rotate the threaded rod 6. Then, under the action of the threaded groove 17 inside insert plate 2 9, insert plate 2 9 moves towards the insertion port 2 16 on the surface of insert plate 1 8, thereby inserting insert plate 2 9 into insertion port 2 16, limiting insert plate 1 8 inside the fixing frame 5, thus fixing mounting seat 1 1 and mounting seat 2 3 together. This is relatively convenient. For subsequent disassembly, simply reverse the cross-shaped rotating block 4 to reconnect insert plate 2 9 with insertion port 2 16. Separation allows for the separation of mounting base 1 and mounting base 3, thus enabling the disassembly of the spindle bearing 2. The anti-slip pad 13 inside the arc-shaped groove 19 improves the anti-slip performance of the spindle bearing 2 between mounting base 1 and mounting base 3. The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on the utility model. Those skilled in the art can readily implement this utility model according to the accompanying drawings and the above description. However, any modifications, alterations, or equivalent changes made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or evolutions made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A sliding bearing structure for the main shaft of a wind turbine generator set, comprising a mounting base plate (11), characterized in that, The upper end face of the mounting base plate (11) has two threaded holes (14), and the threaded holes (14) are threaded with mounting bolts (12). The upper end face of the mounting base plate (11) is fixedly connected to the mounting seat two (3). The upper end of the mounting seat two (3) is provided with the mounting seat one (1). The interior of the mounting seat one (1) and the mounting seat two (3) is provided with arc-shaped grooves (19). The interior of the arc-shaped grooves (19) is fixedly connected with anti-slip pads (13). The main shaft bearing (2) is provided between the mounting seat one (1) and the mounting seat two (3). The left and right sides of the mounting seat two (3) are fixedly connected with fixing brackets (5). The upper end face of the fixing bracket (5) is provided with a socket one (15). The inner wall of the socket one (15) is slidably connected with a plug plate one (8). The upper end of the plug plate one (8) is fixedly connected with a fixing plate (7). The insert plate (8) is fixedly connected to the surface of the mounting base (1) and is limited to the fixing frame (5) by a limiting mechanism.

2. The sliding bearing structure for the main shaft of a wind turbine generator set according to claim 1, characterized in that, The limiting mechanism includes a second insert plate (9) disposed inside the fixed frame (5), and the second insert plate (9) is slidably connected to the inner wall of the second insert (16) opened on the surface of the first insert plate (8).

3. The sliding bearing structure for the main shaft of a wind turbine generator set according to claim 2, characterized in that, The upper and lower sides of the fixed frame (5) are provided with limiting grooves (18), and the inner wall of the limiting groove (18) is slidably connected to the limiting slider (10). One end of the limiting slider (10) is fixedly connected to the side of the insert plate (9).

4. The sliding bearing structure for the main shaft of a wind turbine generator set according to claim 3, characterized in that, The insert plate 2 (9) has a threaded groove (17) inside, and a threaded rod (6) is threadedly connected inside the threaded groove (17).

5. The sliding bearing structure for the main shaft of a wind turbine generator set according to claim 4, characterized in that, The threaded rod (6) passes through the fixed frame (5) and is rotatably connected to the through part by a bearing. One end of the threaded rod (6) is fixedly connected to a cross-shaped rotating block (4).

Images