Bearing assembly, shaft system and wind generating set
By setting locking components and elastic parts in the bearing assembly of the wind turbine set, the problems of micro-moving wear and slipping of the main bearing are solved, and more stable connection is achieved, reducing micro-moving wear and extending service life.
Patent Information
- Application Number
- CN202323661864.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2033-12-29
AI Technical Summary
The main bearings of wind turbines are prone to micro-wear during long-term operation. The existing interference fitting method has the risk of bearing ring slipping, and it is difficult to effectively prevent micro-wear.
Design a bearing assembly, including a bearing, bearing end cover and locking assembly, ensures that the first and second pin holes are provided on the bearing ring and end cover and the use of locking pins and elastic members in the locking assembly The tight connection between the locking pins between the bearing ring and the end cap avoids circumferential sliding and reduces micro-moving wear.
Effectively prevent the slippage of bearing rings, reduce micro-wear, improve the stability and wear resistance of bearing components, simplify the disassembly and maintenance process, and extend the service life.
Smart Images
Figure CN222141819U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of wind power, in particular to a bearing assembly, a shaft system and a wind power generator set. Background Art
[0002] The main bearing of a wind turbine is a key component in a wind turbine, which needs to support the mechanical rotating body (including the impeller). The working conditions of a wind turbine are complex and changeable. During long-term operation, the main bearing will experience micro-motion wear.
[0003] In the prior art, the bearing rings (bearing inner ring / bearing outer ring) of the main bearing of the wind turbine generator set are usually combined with the bearing seat and the main shaft respectively by interference fit to avoid micro-motion wear. However, interference fit has certain limitations. For example, if the interference is too large, it will cause the bearing ring to crack. Therefore, this kind of fit still has a relatively prominent bearing ring slip phenomenon. Utility Model Content
[0004] One of the main purposes of the utility model is to provide a bearing assembly, a shaft system and a wind turbine generator set, wherein the locking assembly can prevent the bearing ring from sliding in the circumferential direction, thereby avoiding the bearing ring from slipping.
[0005] In view of the above purpose, the utility model provides the following technical solutions:
[0006] According to one aspect of the utility model, a bearing assembly is provided, wherein the bearing assembly includes a bearing, a bearing end cover and a locking assembly, the bearing includes a bearing ring, the bearing end cover is used to be arranged at the axial end of the bearing ring, the bearing ring is provided with a first pin hole extending along the axial direction of the bearing assembly, the bearing end cover is provided with a second pin hole extending along the axial direction, and the locking assembly includes a locking pin, and the locking pin can be inserted into the first pin hole and the second pin hole.
[0007] In some embodiments, the locking pin is located in the second pin hole, and can be inserted into the first pin hole during the process of the bearing ring sliding relative to the bearing end cover in the circumferential direction.
[0008] In these embodiments, during assembly, if the locking pin and the first pin hole are aligned, the locking pin can be directly inserted into the first pin hole on the bearing ring. If the two are not aligned during assembly, the locking assembly will not work temporarily. During the later operation, when the bearing ring slides in the circumferential direction, the first pin hole may be aligned with the locking pin. At this time, the locking pin can be inserted into the first pin hole to limit the relative sliding of the bearing ring and the corresponding bearing end cover in the circumferential direction, so as to further avoid slipping and reduce micro-motion wear.
[0009] In some embodiments, the locking assembly further comprises an elastic member, which is disposed in the second pin hole and located on a side of the locking pin away from the bearing ring, for applying an extrusion force on the locking pin toward the bearing ring.
[0010] In these embodiments, by arranging the elastic member in the second pin hole, the elastic member can apply a squeezing force toward the bearing ring to the locking pin, so that the locking pin can be tightly inserted into the first pin hole and the second pin hole to limit the relative rotation between the bearing ring and the bearing end cover in the circumferential direction. In addition, by arranging the elastic member in the second pin hole, the locking pin can be automatically inserted into the first pin hole during the relative sliding of the bearing ring relative to the bearing end cover in the circumferential direction, thereby reducing the trouble of disassembly and maintenance and ensuring the flexibility of the bearing assembly.
[0011] In some embodiments, the second pin hole is a through hole formed on the bearing end cover, and the locking assembly also includes a sealing member. On the side of the second pin hole away from the bearing ring, the sealing member is detachably combined with the second pin hole, and on the side of the second pin hole facing the bearing ring, the locking pin is inserted into the second pin hole, and the elastic member is located between the sealing member and the locking pin to apply an extrusion force toward the bearing ring to the locking pin.
[0012] In these embodiments, the blocking member is detachably combined with the second pin hole, so that the locking assembly can be easily installed and removed. For example, on the side of the second pin hole facing away from the bearing ring, the blocking member can be removed to complete the maintenance and replacement of the locking assembly. In addition, on the side of the second pin hole facing the bearing ring, the locking pin is inserted into the second pin hole. At this time, the elastic member is located between the blocking member and the locking pin, and can apply an extrusion force toward the bearing ring to the locking pin. In this way, the fastening and stability of the locking pin can be ensured, and the stability and anti-fretting wear capability of the bearing assembly are further increased.
[0013] In some embodiments, a plurality of first pin holes are provided on the bearing ring, and the plurality of first pin holes are spaced apart along the circumferential direction of the bearing ring; and / or a plurality of second pin holes are provided on the bearing end cover, and the plurality of second pin holes are spaced apart along the circumferential direction of the bearing end cover, and a plurality of locking assemblies are provided in the second pin holes.
[0014] In these embodiments, multiple locking assemblies are provided to enhance the connection stability between the bearing ring and the bearing end cover. Multiple locking assemblies can be distributed at different circumferential positions to provide a more uniform and stable locking force, reduce the relative sliding between the bearing ring and the bearing end cover, and thus reduce fretting wear.
[0015] Specifically, the bearing comprises a bearing inner ring and a bearing outer ring and a roller arranged between the bearing inner ring and the bearing outer ring, and the bearing ring is the bearing inner ring and / or the bearing outer ring.
[0016] In some embodiments, the bearing ring is the bearing inner ring, the bearing inner ring can be interference fitted with the rotating shaft, and the bearing end cover can be fixedly connected to the rotating shaft.
[0017] In some embodiments, the first pin hole is a hanging hole formed on the bearing ring, and / or the second pin hole is a hanging hole formed on the bearing end cover.
[0018] In these embodiments, the first pin hole and the second pin hole can be used as hanging holes of corresponding components to facilitate installation, maintenance or transportation of the bearing.
[0019] Specifically, the second pin hole is a countersunk hole, and the opening of the second pin hole faces the bearing ring.
[0020] In these embodiments, by designing the second pin hole as a countersunk hole, better stability and connectivity can be provided. In addition, the opening of the second pin hole faces the bearing ring, which is conducive to the locking assembly functioning when the bearing ring slides relative to the bearing end cover in the circumferential direction in the later stage of installation. In addition, the opening of the second pin hole faces the bearing ring, so that the locking assembly installed in the second pin hole is not easy to fall out under the restriction of the bearing ring, which can ensure safety.
[0021] According to a second aspect of the present application, a shaft system is provided, comprising a bearing seat and a rotating shaft, wherein the shaft system also includes a bearing assembly according to the above-mentioned embodiments, the bearing ring is located between the bearing seat and the rotating shaft, and the bearing end cover is fixedly connected to the bearing seat or the rotating shaft.
[0022] Specifically, the bearing ring is a bearing inner ring, which is interference fitted with the rotating shaft, and the bearing end cover is fixedly connected to the rotating shaft.
[0023] In some embodiments, two ends of the locking pin are respectively inserted into the first pin hole and the second pin hole.
[0024] In these embodiments, by inserting the two ends of the locking pin into the first pin hole and the second pin hole respectively, the bearing ring and the corresponding bearing end cover can be effectively fixed and connected to limit the relative movement of the bearing ring and the corresponding bearing end cover.
[0025] In some embodiments, the locking pin is located in the second pin hole, and can be inserted into the first pin hole during the process of relative sliding of the bearing inner ring with respect to the rotating shaft in the circumferential direction.
[0026] In these embodiments, by arranging the elastic member in the second pin hole, the elastic member can apply a squeezing force toward the bearing ring to the locking pin. In this way, it can be ensured that the locking pin is tightly inserted into the first pin hole and the second pin hole to limit the relative sliding between the bearing ring and the bearing end cover in the circumferential direction. In addition, by arranging the elastic member in the second pin hole, it can be achieved that during the relative sliding of the bearing ring relative to the bearing end cover in the circumferential direction, the locking pin can be automatically inserted into the first pin hole, which reduces the trouble of disassembly and maintenance and ensures the flexibility of the bearing assembly.
[0027] According to a third aspect of the present application, a wind turbine generator set is provided, wherein the wind turbine generator set includes a shaft system according to the above-mentioned embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] The above and / or other purposes and advantages of the present invention will become more apparent through the following description of the embodiments in conjunction with the accompanying drawings, in which:
[0029] Figure 1 A schematic diagram of the structure of a shaft system provided according to an embodiment of the present application is shown;
[0030] Figure 2 Shows Figure 1 A schematic diagram of the enlarged structure at I in the middle;
[0031] Figure 3 A schematic diagram of the structure of a bearing end cover provided according to an embodiment of the present application is shown;
[0032] Figure 4 A schematic structural diagram of a bearing ring provided according to an embodiment of the present application is shown.
[0033] Explanation of symbols
[0034] 10. bearing ring; 11. first pin hole;
[0035] 20. bearing end cover; 21. second pin hole;
[0036] 30. Locking assembly; 31. Locking pin; 32. Elastic member; 33. Blocking member;
[0037] 40. Rotating shaft; 50. Bearing seat. DETAILED DESCRIPTION
[0038] Example embodiments will now be described more fully with reference to the accompanying drawings. However, it should not be understood that the embodiments of the present invention are limited to the embodiments set forth herein. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.
[0039] It should be noted that the definitions of directional terms such as "upper", "lower", "top" and "bottom" in this application are based on the orientation of the product when it is placed horizontally in normal use as a reference direction. It should not be understood as a specific limitation of the embodiments of this application. In addition, in the context, it is also necessary to explain that when it is mentioned that one element is connected to another element, it can be either a direct connection or an indirect connection, unless it is clearly stated that one element is directly connected to another element.
[0040] For the convenience of description, directional terms such as front, back, up, down, inside, and outside are used to describe the structure and operation method of the device. Front and back may respectively refer to the positive direction and negative direction of the axial direction in the accompanying drawings, up and down may respectively refer to the positive direction and negative direction of the height direction or thickness direction in the accompanying drawings, and radial directions outward and inward may respectively refer to the direction away from the central axis and the direction toward the central axis in the radial direction.
[0041] According to a first aspect of the present application, a bearing assembly is provided, wherein: Figures 1 to 4 As shown, the bearing assembly includes a bearing, a bearing end cover 20 and a locking assembly 30. The bearing includes a bearing ring 10. The bearing end cover 20 is used to be arranged at the axial end of the bearing ring 10. The bearing ring 10 is provided with a first pin hole 11 extending along the axial direction of the bearing assembly. The bearing end cover 20 is provided with a second pin hole 21 extending along the axial direction. The locking assembly 30 includes a locking pin 31, which can be inserted into the first pin hole 11 and the second pin hole 21.
[0042] According to the bearing assembly provided in the embodiment of the present application, the locking pin 31 can be inserted into the first pin hole 11 and the second pin hole 21, so as to limit the sliding of the bearing ring 10 in the circumferential direction relative to the bearing end cover 20, thereby preventing the bearing ring 10 from slipping in the circumferential direction.
[0043] In the embodiment of the present application, the first pin hole 11 extends along the axial direction of the bearing assembly. Figure 1 The axis extends in a direction parallel to the direction shown.
[0044] In some embodiments, the locking pin 31 is located in the second pin hole 21 , and can be inserted into the first pin hole 11 during the process of the bearing ring 10 sliding relative to the bearing end cover 20 in the circumferential direction.
[0045] In these embodiments, during assembly, if the locking pin 31 and the first pin hole 11 are aligned, the locking pin 31 can be directly inserted into the first pin hole 11 on the bearing ring 10. If the two are not aligned during assembly, the locking assembly 30 will not function temporarily. During the later operation, when the bearing ring 10 slides relative to the bearing end cover 20 in the circumferential direction, the first pin hole 11 may be aligned with the locking pin 31. At this time, the locking pin 31 can be inserted into the first pin hole 11 to limit the relative sliding of the bearing ring 10 and the corresponding bearing end cover 20 in the circumferential direction, so as to further avoid slipping and reduce micro-motion wear.
[0046] In some embodiments, the locking assembly 30 further includes an elastic member 32, which is disposed in the second pin hole 21, located on a side of the locking pin 31 away from the bearing ring 10, and applies a squeezing force on the locking pin 31 toward the bearing ring 10. As an example, the elastic member 32 is a spring.
[0047] In these embodiments, by arranging the elastic member 32 in the second pin hole 21, the elastic member 32 can apply a squeezing force toward the bearing ring 10 to the locking pin 31. In this way, it can be ensured that the locking pin 31 is tightly inserted into the first pin hole 11 and the second pin hole 21 to limit the relative sliding in the circumferential direction between the bearing ring 10 and the bearing end cover 20. In addition, by arranging the elastic member 32 in the second pin hole 21, it can be achieved that during the relative sliding in the circumferential direction of the bearing ring 10 relative to the bearing end cover 20, the locking pin 31 can be automatically inserted into the first pin hole 11, which reduces the trouble of disassembly and maintenance and ensures the flexibility of the bearing assembly.
[0048] In some embodiments, the second pin hole 21 is a through hole formed on the bearing end cover 20, and the locking assembly 30 further includes a plugging member 33. The plugging member 33 is detachably combined with the second pin hole 21 on the side of the second pin hole 21 away from the bearing ring 10. The locking pin 31 is inserted into the second pin hole 21 on the side of the second pin hole 21 facing the bearing ring 10. The elastic member 32 is located between the plugging member 33 and the locking pin 31, and applies an extrusion force toward the bearing ring 10 to the locking pin 31. As an example, the plugging member 33 and the second pin hole 21 can be detachably combined by thread, buckle or other means. The plugging member 33 can be a bolt, specifically, a countersunk bolt.
[0049] In these embodiments, the blocking member 33 is detachably combined with the second pin hole 21, so that the locking assembly 30 can be easily installed and removed. For example, on the side of the second pin hole 21 facing away from the bearing ring 10, the blocking member 33 can be removed to complete the maintenance and replacement of the locking assembly 30. In addition, on the side of the second pin hole 21 facing the bearing ring 10, the locking pin 31 is inserted into the second pin hole 21. At this time, the elastic member 32 is located between the blocking member 33 and the locking pin 31, and can apply a squeezing force toward the bearing ring 10 to the locking pin 31. In this way, the fastening and stability of the locking pin 31 can be ensured, and the stability and anti-fretting wear capability of the bearing assembly are further increased.
[0050] In some embodiments, a plurality of first pin holes 11 are provided on the bearing ring 10, and the plurality of first pin holes 11 are spaced apart along the circumferential direction of the bearing ring 10. And / or, a plurality of second pin holes 21 are provided on the bearing end cover 20, and the plurality of second pin holes 21 are spaced apart along the circumferential direction of the bearing end cover 20, and a plurality of locking assemblies 30 are provided in the second pin holes 21. It should be noted that the present application does not limit the specific number and position of the pin holes, and here, they can be adjusted and optimized according to the actual application requirements to ensure that the locking assemblies 30 can be evenly distributed and provide sufficient locking force.
[0051] In these embodiments, multiple locking assemblies 30 are provided to enhance the connection stability between the bearing ring 10 and the bearing end cover 20. Multiple locking assemblies 30 can be distributed at different circumferential positions to provide a more uniform and stable locking force, reduce the relative sliding between the bearing ring 10 and the bearing end cover 20, and thus reduce micro-motion wear.
[0052] In some embodiments, Figure 1 As shown, the bearing includes a bearing inner ring, a bearing outer ring and a roller arranged between the bearing inner ring and the bearing outer ring. The bearing inner ring is fixedly combined with the rotating shaft 40, and the bearing outer ring is fixedly combined with the bearing seat 50. The bearing is arranged between the radial outer periphery of the rotating shaft 40 and the bearing seat 50.
[0053] According to some embodiments, the bearing ring 10 is a bearing inner ring and / or a bearing outer ring. Figure 1 and Figure 2 In the example shown, the bearing ring 10 is the inner ring of the bearing, the bearing end cover 20 is a stopper for limiting the axial displacement of the inner ring of the bearing on the rotating shaft 40, and the bearing end cover 20 is annular and fixedly connected to the rotating shaft 40. The outer diameter of the bearing end cover 20 is larger than the outer diameter of the position where the bearing is installed on the rotating shaft 40, so that the outer peripheral edge of the bearing end cover 20 can protrude relative to the outer periphery of the rotating shaft 40 and stop on one axial side of the inner ring of the bearing to prevent the inner ring of the bearing from moving in the axial direction of the rotating shaft 40.
[0054] exist Figure 4In the example shown, a schematic structural diagram of a bearing ring is shown. On the end surface of the bearing ring 10, there are first pin holes 11 arranged at predetermined intervals.
[0055] In some embodiments, the bearing ring 10 is a bearing inner ring, and the bearing inner ring can be interference fitted with the rotating shaft 40, and the bearing end cover 20 can be fixedly connected with the rotating shaft 40. As an example, the bearing end cover 20 and the rotating shaft are fixed in a manner such as, but not limited to, bolts, pins or other fixing devices to ensure the firmness and stability of the bearing end cover 20. The bearing inner ring and the rotating shaft are interference fit, and as an example, the inner diameter of the inner ring is slightly smaller than the diameter of the rotating shaft, so that the bearing inner ring and the rotating shaft are interference fit to ensure a stable connection between the two.
[0056] In these embodiments, the bearing end cover 20 is fixedly connected to the rotating shaft 40. In this case, the bearing end cover 20 and the rotating shaft 40 are less likely to slide in the circumferential direction, that is, the bearing end cover 20 and the rotating shaft 40 can be regarded as relatively stationary. The bearing ring 10 is the inner ring of the bearing, and the inner ring of the bearing and the rotating shaft 40 are fitted by interference fit. In this case, the inner ring of the bearing may slip in the circumferential direction relative to the rotating shaft 40 during the later operation. According to the present application, the bearing ring 10 and the corresponding bearing end cover 20 are locked by the locking assembly 30, which can inhibit the relative sliding of the bearing ring relative to the rotating shaft in the circumferential direction, thereby reducing micro-motion wear, ensuring the stability and reliability of the bearing assembly during operation, and extending the service life of the bearing assembly.
[0057] In some embodiments, the first pin hole 11 is a hanging hole formed on the bearing ring 10 , and / or the second pin hole 21 is a hanging hole formed on the bearing end cover 20 .
[0058] In these embodiments, the first pin hole 11 and the second pin hole 21 can be used as hanging holes of the corresponding components to facilitate installation, maintenance or transportation of the bearing. For example, during installation, the bearing ring 10 and the bearing end cover 20 can be hung at a suitable position using a hook to facilitate positioning and fixing. During maintenance or transportation, the hanging holes can be used to fix the bearing ring 10 and the bearing end cover 20 on appropriate equipment to facilitate safe operation.
[0059] In some embodiments, the second pin hole 21 is a countersunk hole, and the opening of the second pin hole 21 faces the bearing ring 10. As an example, the second pin hole 21 is a recessed hole formed on the bearing end cover 20.
[0060] In these embodiments, by designing the second pin hole 21 as a countersunk hole, better stability and connectivity can be provided. The design of the countersunk hole can enable the second pin hole 21 to be better combined with the locking assembly (such as a locking pin) to achieve a more secure fixation and connection. In addition, the opening of the second pin hole 21 faces the bearing ring 10, which is conducive to the locking assembly 30 to function when the bearing ring 10 slides relative to the bearing end cover 20 in the circumferential direction in the later stage of installation. In addition, the opening of the second pin hole 21 faces the bearing ring 10, so that the locking assembly installed in the second pin hole 21 is not easy to fall out under the restriction of the bearing ring 10, which can ensure safety.
[0061] According to the second aspect of the present application, a shaft system is provided, including a rotating shaft 40 and a bearing seat 50. The shaft system also includes a bearing assembly provided according to the above-mentioned embodiments. The bearing ring 10 is located between the bearing seat 50 and the rotating shaft 40, and the bearing end cover 20 is fixedly connected to the bearing seat or the rotating shaft.
[0062] According to the present application, specifically, the shaft system includes a bearing seat for carrying and positioning the bearing assembly. The bearing seat can be in various forms and structures to meet specific application requirements. As an example, the bearing seat can be annular. A bearing ring 10 is installed between the bearing seat and the rotating shaft. The bearing ring 10 can be a bearing outer ring or a bearing inner ring. In the case where the bearing ring is a bearing inner ring, the bearing ring 10 is interference fit with the rotating shaft, and the bearing end cover 20 is fixedly linked to the rotating shaft 40. In this way, the slight gap and relative movement between the rotating shaft and the bearing inner ring can be reduced, thereby reducing the generation of vibration and noise. On the other hand, it can be easy to maintain and replace. In the case where the bearing ring 10 is a bearing outer ring, the bearing ring 10 is interference fit with the bearing seat, and the bearing end cover is fixed to the bearing seat.
[0063] In addition, the bearing end cover 20 may be fixed to the bearing seat or the rotating shaft by bolts, pins or other fixing devices to ensure the firmness and stability of the bearing end cover 20 .
[0064] In some embodiments, both ends of the locking pin 31 are inserted into the first pin hole 11 and the second pin hole 21 respectively.
[0065] In these embodiments, by inserting the two ends of the locking pin 31 into the first pin hole 11 and the second pin hole 21 respectively, the bearing ring 10 and the corresponding bearing end cover 20 can be effectively fixed and connected to limit the relative movement of the bearing ring 10 and the corresponding bearing end cover 20.
[0066] In some embodiments, the first end of the locking pin 31 is connected to or abuts against the elastic member, and the second end of the locking pin 31 has a chamfer. Specifically, the chamfer is a circular chamfer with a radius in the range of 3mm-5mm.
[0067] In these embodiments, the second end of the locking pin 31 has a chamfer, which can guide the locking pin 31 into the first pin hole 11 so that the locking pin 31 can stop the bearing ring.
[0068] In some embodiments, the locking pin 31 is located in the second pin hole 21 and can be automatically inserted into the first pin hole 11 under the action of the elastic member during the process of the bearing inner ring sliding relative to the rotating shaft in the circumferential direction.
[0069] In these embodiments, during assembly, if the locking pin 31 and the first pin hole 11 are aligned, the locking pin 31 can be directly inserted into the first pin hole 11 on the bearing ring 10. If the two are not aligned during assembly, the locking assembly 30 will not function temporarily. During the later operation, when the bearing ring 10 slides relative to the bearing end cover 20 in the circumferential direction, the first pin hole 11 may be aligned with the locking pin 31. At this time, the locking pin 31 can be inserted into the first pin hole 11 under the elastic force of the elastic member to limit the relative sliding of the bearing ring 10 and the corresponding bearing end cover 20 in the circumferential direction, so as to further avoid slipping and reduce micro-wear.
[0070] According to the third aspect of the present application, a wind turbine generator set is provided, wherein the wind turbine generator set comprises the shaft system provided in the above embodiments. Therefore, all the beneficial effects of the above embodiments are obtained, which will not be described in detail here.
[0071] In the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.
[0072] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0073] The features, structures or characteristics described in the utility model can be combined in one or more embodiments in any suitable manner. In the above description, many specific details are provided to provide a full understanding of the embodiments of the utility model. However, those skilled in the art will appreciate that the technical solution of the utility model can be practiced without one or more of the specific details, or other methods, components, materials, etc. can be adopted. In other cases, known structures, materials or operations are not shown or described in detail to avoid blurring the various aspects of the utility model.
Claims
1. A bearing assembly, It is characterized in that The bearing assembly comprises a bearing, a bearing end cover (20) and a locking assembly (30); the bearing comprises a bearing ring (10); the bearing end cover (20) is used to be arranged at an axial end of the bearing ring (10); the bearing ring (10) is provided with a first pin hole (11) extending along the axial direction of the bearing assembly; the bearing end cover (20) is provided with a second pin hole (21) extending along the axial direction; the locking assembly (30) comprises a locking pin (31); the locking pin (31) can be inserted into the first pin hole (11) and the second pin hole (21).
2. The bearing assembly according to claim 1, It is characterized in that The locking pin (31) is located in the second pin hole (21), and can be inserted into the first pin hole (11) during the process of the bearing ring (10) sliding relative to the bearing end cover (20) in the circumferential direction.
3. The bearing assembly according to claim 2, It is characterized in that The locking assembly (30) further comprises an elastic member (32) which is arranged in the second pin hole (21) and is located on a side of the locking pin (31) away from the bearing ring (10) to apply a squeezing force on the locking pin (31) towards the bearing ring (10).
4. The bearing assembly according to claim 3, It is characterized in that The second pin hole (21) is a through hole formed on the bearing end cover (20). The locking assembly (30) further comprises a blocking member (33). On the side of the second pin hole (21) away from the bearing ring (10), the blocking member (33) is detachably combined with the second pin hole (21). On the side of the second pin hole (21) facing the bearing ring (10), the locking pin (31) is inserted into the second pin hole (21). The elastic member (32) is located between the blocking member (33) and the locking pin (31) to apply an extrusion force toward the bearing ring (10) to the locking pin (31).
5. The bearing assembly according to any one of claims 1 to 4, It is characterized in that A plurality of first pin holes (11) are provided on the bearing ring (10), and the plurality of first pin holes (11) are arranged at intervals along the circumferential direction of the bearing ring (10); and / or a plurality of second pin holes (21) are provided on the bearing end cover (20), and the plurality of second pin holes (21) are arranged at intervals along the circumferential direction of the bearing end cover (20), and a plurality of locking assemblies (30) are arranged in the second pin holes (21).
6. The bearing assembly according to claim 1, It is characterized in that The bearing comprises a bearing inner ring and a bearing outer ring and a roller arranged between the bearing inner ring and the bearing outer ring, and the bearing ring (10) is the bearing inner ring and / or the bearing outer ring.
7. The bearing assembly according to claim 6, It is characterized in that The bearing ring (10) is the bearing inner ring, the bearing inner ring can be interference fitted with the rotating shaft (40), and the bearing end cover (20) can be fixedly connected with the rotating shaft (40).
8. The bearing assembly according to claim 7, It is characterized in that The first pin hole (11) is a hanging hole formed on the bearing ring (10), and / or the second pin hole (21) is a hanging hole formed on the bearing end cover (20).
9. The bearing assembly according to any one of claims 1 to 3, It is characterized in that The second pin hole (21) is a countersunk hole, and the opening of the second pin hole (21) faces the bearing ring (10).
10. A shaft system, comprising a bearing seat (50) and a rotating shaft (40), It is characterized in that The shaft system also includes a bearing assembly as described in any one of claims 1 to 9, the bearing ring (10) is located between the bearing seat (50) and the rotating shaft (40), and the bearing end cover (20) is fixedly connected to the bearing seat (50) or the rotating shaft (40).
11. The shaft system according to claim 10, It is characterized in that The bearing ring (10) is an inner ring of a bearing and is interference fitted with the rotating shaft (40), and the bearing end cover (20) is fixedly connected to the rotating shaft (40).
12. A wind turbine generator set, It is characterized in that The wind turbine generator set comprises the shaft system according to claim 10 or 11.