Main bearing structure for wind power generation
By designing the oil storage box and sealing ring structure in the wind power main bearing, the problem of lubricating oil leakage is solved, and efficient sealing and lubrication of the bearing is achieved, which extends the service life and reduces the maintenance cost.
Patent Information
- Application Number
- CN202421329670.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-06-12
AI Technical Summary
Due to the single sealing structure and lack of oil storage devices, the main bearings of wind power generation have severe lubricating oil leakage, which accelerates bearing wear, shortens service life and increases maintenance costs.
A wind power main bearing structure is designed, using an oil storage box and a sealing ring structure. The sealing ring is expanded by the elastic force of the compression spring to form a sealing effect, and the lubricating oil is evenly distributed through the rotation of the roller shaft and the inner ring to reduce friction. .
It effectively improves the sealing inside the bearing, avoids lubricant leakage, reduces the wear of the bearing, extends its service life, and reduces maintenance costs.
Smart Images
Figure CN222478866U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearing structures, in particular to a main bearing structure for wind power generation. Background Art
[0002] Wind power generation is a clean energy source that is widely used around the world. One of the core components of wind power generation is the main bearing, which plays an important role in supporting and rotating wind turbines. With the continuous development of wind power generation technology, the structure of the main bearing is also constantly innovating and improving.
[0003] In the prior art, the lubricating oil inside the main bearing of a wind turbine is very important during use, as it enables the bearing to run smoothly and reduces wear. However, most main bearings of wind turbines have a relatively simple sealing structure and no oil storage device, which leads to serious leakage of the lubricating oil. During long-term use, the bearing will suffer from severe wear, which greatly shortens its service life and increases the cost of replacement and maintenance. Utility Model Content
[0004] The purpose of the utility model is to solve the problem that when the above-mentioned equipment is in use, the lubricating oil inside the bearing cannot be well sealed, resulting in lubricating oil leakage during long-term use, thereby proposing a main bearing structure for wind power generation.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a main bearing structure for wind power generation, including a base, a fixing block is arranged on the top of the base, the inner surfaces of the base and the fixing block are provided with installation grooves, an outer ring is fixedly installed between the inner surfaces of the two installation grooves, a fixing groove begins on the inner surface wall of the outer ring, a plurality of rollers are arranged on the inner surface wall of the fixing groove, two annular grooves are arranged on the inner surface wall of the outer ring, compression springs are arranged on the inner surface walls of the two annular grooves, sealing rings are arranged on the outer surfaces of the compression springs, an inner ring is arranged between the inner surfaces of the two annular grooves, and a shaft body is fixedly inserted into the inner surface wall of the inner ring.
[0006] Preferably, an oil storage box is fixedly mounted on the outer wall of the outer ring, a plurality of circular grooves are formed on the bottom of the inner wall of the oil storage box, and the circular grooves are fixedly connected to the outer ring.
[0007] Preferably, a top cover is provided on the top of the oil storage box, a sealing ring is provided on the outer wall of the top cover, and a dust ring is provided on the outer wall of the top cover.
[0008] Preferably, two thread grooves are provided on the top of the fixing block, and bolts are movably inserted into the inner surface walls of the two thread grooves.
[0009] Preferably, a setting groove is provided on the top of the fixing block, and a condenser is provided on the inner surface wall of the base.
[0010] Preferably, a cooling device is fixedly mounted on the bottom of the inner wall of the base, and the outer wall of the cooling device is fixedly connected to the outer wall of the condenser tube.
[0011] Preferably, a side cover is fixedly mounted on one side of the outer wall of the base.
[0012] Compared with the prior art, the advantages and positive effects of the utility model are:
[0013] 1. In use, after the bearing is installed, the top cover is first opened by the staff, and the lubricating oil is stored in the oil storage box. Then the top cover is covered and the lubricating oil in the oil storage box enters the fixed groove under the action of the circular groove. At the same time, the inner ring is driven to rotate in the annular groove by the rotation of the shaft body, thereby driving the roller shaft to rotate. The rotation of the roller shaft can make the lubricating oil entering the fixed groove reach the outer wall of each roller shaft evenly, thereby reducing the friction between the roller shaft and the inner ring. Under the action of the compression spring and the sealing ring, the sealing ring is expanded in the annular groove by the elastic force of the compression spring, thereby sealing the lubricating oil. The above structure and method can greatly improve the sealing performance of the bearing, avoid leakage of the lubricating oil during use, and store the lubricating oil, thereby reducing the wear of the bearing and extending its service life.
[0014] 2. During use of the utility model, when the bearing needs to be installed, firstly, the bolt inside the threaded groove is rotated by the staff to take out the fixing block, and then the bearing is placed and the fixing block is fixed by the bolt. During the use of the bearing, a large amount of heat is generated due to friction. At this time, the condensation circulation movement inside the condenser tube is made under the action of the cooling device, and the heat generated by the bearing is absorbed. Then, the condensate is dissipated under the action of the cooling device. Through the above structure and method, the bearing can be dissipated during use, thereby further delaying the service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 The utility model provides a main structural stereogram of a wind power generation main bearing structure;
[0016] Figure 2 The utility model proposes a main structural split diagram of a wind power generation main bearing structure;
[0017] Figure 3 The utility model proposes a main structural part split diagram of a wind power generation main bearing structure;
[0018] Figure 4 The utility model provides a main structural split stereogram of a wind power generation main bearing structure.
[0019] Legend:
[0020] 1. Base; 2. Fixing block; 3. Threaded groove; 4. Bolt; 5. Setting groove; 6. Mounting groove; 7. Outer ring; 8. Fixing groove; 9. Roller; 10. Annular groove; 11. Compression spring; 12. Sealing ring; 13. Inner ring; 14. Shaft body; 15. Oil storage box; 16. Round groove; 17. Top cover; 18. Sealing ring; 19. Dustproof ring; 20. Condenser; 21. Cooling device; 22. Side cover. DETAILED DESCRIPTION
[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.
[0023] Embodiment 1, as Figure 1-Figure 4 As shown, the utility model provides a main bearing structure for wind power generation, including a base 1, a fixing block 2 is arranged on the top of the base 1, the inner surface walls of the base 1 and the fixing block 2 are both provided with mounting grooves 6, an outer ring 7 is fixedly installed between the inner surface walls of the two mounting grooves 6, a fixing groove 8 is arranged at the beginning of the inner surface wall of the outer ring 7, a plurality of rollers 9 are arranged on the inner surface wall of the fixing groove 8, two annular grooves 10 are arranged on the inner surface walls of the two annular grooves 10, compression springs 11 are arranged on the inner surface walls of the compression springs The outer wall of the spring 11 is provided with a sealing ring 12, an inner ring 13 is provided between the inner walls of the two annular grooves 10, a shaft body 14 is fixedly inserted into the inner wall of the inner ring 13, an oil storage box 15 is fixedly installed on the outer wall of the outer ring 7, a plurality of circular grooves 16 are opened at the bottom of the inner wall of the oil storage box 15, and the circular grooves 16 are fixedly connected with the outer ring 7, a top cover 17 is provided on the top of the oil storage box 15, a sealing ring 18 is provided on the outer wall of the top cover 17, and a dust ring 19 is provided on the outer wall of the top cover 17.
[0024] The effect achieved by the entire embodiment 1 is that after the bearing is installed, the top cover 17 is first opened by the staff, and the lubricating oil is stored in the oil storage box 15, and then the top cover 17 is covered and the lubricating oil in the oil storage box 15 enters the fixed groove 8 under the action of the circular groove 16, and at the same time, the inner ring 13 is driven to rotate in the annular groove 10 by the rotation of the shaft body 14, thereby driving the roller shaft 9 to rotate, and the rotation of the roller shaft 9 can make the lubricating oil entering the fixed groove 8 evenly reach the outer wall of each roller shaft 9, thereby reducing the friction between the roller shaft 9 and the inner ring 13, and under the action of the compression spring 11 and the sealing ring 12, the sealing ring 12 is expanded in the annular groove 10 by the elastic force of the compression spring 11, thereby having a sealing effect on the lubricating oil, and the above-mentioned structure and method can greatly improve the sealing inside the bearing, avoid leakage of lubricating oil during use, and store the lubricating oil, thereby reducing the wear of the bearing and extending its service life.
[0025] Embodiment 2, as Figure 2-Figure 4 As shown, two threaded grooves 3 are provided on the top of the fixed block 2, bolts 4 are movably inserted into the inner walls of the two threaded grooves 3, a setting groove 5 is provided on the top of the fixed block 2, a condenser 20 is provided on the inner wall of the base 1, a cooling device 21 is fixedly installed on the bottom of the inner wall of the base 1, and the outer wall of the cooling device 21 is fixedly connected to the outer wall of the condenser 20, and a side cover 22 is fixedly installed on one side of the outer wall of the base 1.
[0026] The effect achieved by the entire embodiment 2 is that when the bearing needs to be installed, first, the bolt 4 inside the threaded groove 3 is rotated by the staff and the fixing block 2 is taken out, and then the bearing is placed and the fixing block 2 is fixed by the bolt 4. During the use of the bearing, a large amount of heat will be generated due to friction. At this time, the condensation circulation movement inside the condenser tube 20 is made under the action of the cooling device 21, and the heat generated by the bearing is absorbed. Then, the condensate is dissipated under the action of the cooling device 21. Through the above structure and method, the bearing can be dissipated during use, thereby further delaying the service life of the bearing.
[0027] Working principle: When the bearing needs to be installed, firstly, the bolt 4 inside the threaded groove 3 is rotated by the staff and the fixing block 2 is taken out, then the bearing is placed and the fixing block 2 is fixed by the bolt 4. After the bearing is installed, first, the top cover 17 is opened by the staff, and the lubricating oil is stored in the oil storage box 15, and then the top cover 17 is covered and the lubricating oil inside the oil storage box 15 enters the fixing groove 8 under the action of the circular groove 16. At the same time, the inner ring 13 is driven to rotate in the annular groove 10 through the rotation of the shaft body 14, thereby driving the roller 9 to rotate. The rotation of the roller 9 can The lubricating oil entering the fixed groove 8 is evenly distributed to the outer wall of each roller 9, thereby reducing the friction between the roller 9 and the inner ring 13. Under the action of the compression spring 11 and the sealing ring 12, the sealing ring 12 is expanded inside the annular groove 10 by the elastic force of the compression spring 11, thereby sealing the lubricating oil and preventing the lubricating oil from leaking. During the use of the bearing, a large amount of heat will be generated due to friction. At this time, the condensation circulates inside the condenser tube 20 under the action of the cooling device 21, and the heat generated by the bearing is absorbed. Then, the condensate is dissipated under the action of the cooling device 21, thereby extending its service life.
[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.
Claims
1. A main bearing structure for wind power generation, characterized in that: The invention comprises a base (1), a fixing block (2) is arranged on the top of the base (1), the inner surface walls of the base (1) and the fixing block (2) are both provided with mounting grooves (6), an outer ring (7) is fixedly installed between the inner surface walls of the two mounting grooves (6), a fixing groove (8) is arranged on the inner surface wall of the outer ring (7), a plurality of rollers (9) are arranged on the inner surface wall of the fixing groove (8), two annular grooves (10) are arranged on the inner surface walls of the two annular grooves (10), a compression spring (11) is arranged on the inner surface walls of the compression spring (11), a sealing ring (12) is arranged on the outer surface walls of the compression spring (11), an inner ring (13) is arranged between the inner surface walls of the two annular grooves (10), and a shaft body (14) is fixedly inserted into the inner surface wall of the inner ring (13).
2. A wind power generation main bearing structure according to claim 1, characterized in that: An oil storage box (15) is fixedly mounted on the outer wall of the outer ring (7), and a plurality of circular grooves (16) are provided at the bottom of the inner wall of the oil storage box (15), and the circular grooves (16) are fixedly connected to the outer ring (7).
3. A wind power generation main bearing structure according to claim 2, characterized in that: The top of the oil storage box (15) is provided with a top cover (17), the outer wall of the top cover (17) is provided with a sealing ring (18), and the outer wall of the top cover (17) is provided with a dustproof ring (19).
4. A wind power generation main bearing structure according to claim 1, characterized in that: Two thread grooves (3) are provided on the top of the fixing block (2), and bolts (4) are movably inserted into the inner surface walls of the two thread grooves (3).
5. A wind power generation main bearing structure according to claim 4, characterized in that: A setting groove (5) is provided on the top of the fixing block (2), and a condensation pipe (20) is provided on the inner surface wall of the base (1).
6. A wind power generation main bearing structure according to claim 5, characterized in that: A cooling device (21) is fixedly mounted on the bottom of the inner wall of the base (1), and the outer wall of the cooling device (21) is fixedly connected to the outer wall of the condenser tube (20).
7. A wind power generation main bearing structure according to claim 6, characterized in that: A side cover (22) is fixedly mounted on one side of the outer wall of the base (1).