Rotor assembly, electric generator and vehicle
By setting inserts between the rotor spokes and the rotor shaft, and using limiting bosses and grooves for interlocking, the problem of insufficient torque transmission capacity between the rotor shaft and rotor spokes is solved, achieving efficient torque transmission of the rotor assembly and improving the reliability of the generator.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING SOKON POWER CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-12
AI Technical Summary
In the existing technology, the torque transmission capability between the rotor shaft and the rotor spokes is poor, and the connection accuracy between the circumferential limiting component and the rotor shaft and rotor spokes is poor, which makes it difficult to set up multiple circumferential limiting components and cannot effectively improve the torque transmission capability.
By setting an insert between the rotor spokes and the rotor shaft, the insert is fixed relative to the rotor spokes and is engaged by a limiting boss and a groove, thereby improving the connection accuracy and strength between the rotor shaft and the rotor spokes, thus enhancing the torque transmission capability.
This improves the torque transmission capability and overall structural strength of the rotor assembly, ensuring the reliability and normal operation of the generator.
Smart Images
Figure CN224355897U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle technology, and in particular to a rotor assembly, a generator including the rotor assembly, and a vehicle including the generator. Background Technology
[0002] In related technologies, circumferential relative positioning between the rotor shaft and rotor spokes is achieved through circumferential limiting components. However, this method results in poor torque transmission capability between the rotor shaft and rotor spokes. To improve torque transmission capability, multiple circumferential limiting components can be provided. However, the connection accuracy between the circumferential limiting components and the rotor shaft and rotor spokes is poor, making it difficult to set up multiple circumferential limiting components. Ultimately, the torque transmission capability of the rotor assembly with multiple circumferential limiting components cannot be effectively improved. Utility Model Content
[0003] In view of the above problems, the present invention provides a rotor assembly that can improve the torque transmission capability between the rotor shaft and the rotor spokes by means of inserts, thereby improving the reliability of the generator.
[0004] In a first aspect, the present invention provides a rotor assembly comprising rotor spokes, an insert, a rotor shaft, and a circumferential limiting member. The rotor spokes have a first central hole extending axially. The insert is fitted into the inner circumferential wall of the first central hole and is fixed relative to the rotor spokes. The insert has a second central hole extending axially. The rotor shaft is disposed in the second central hole. The circumferential limiting member is connected between the inner circumferential wall of the second central hole and the rotor shaft, and is used to circumferentially limit the rotor shaft relative to the insert.
[0005] According to the rotor assembly of this utility model embodiment, by providing an insert between the rotor spokes and the rotor shaft, the insert can improve the torque capacity between the rotor shaft and the rotor spokes, thereby improving the reliability of the generator.
[0006] In some embodiments, the insert has a first sidewall and a second sidewall that are radially opposite each other, the first sidewall facing the rotor spokes and the second sidewall facing the rotor shaft, the first sidewall having a first limiting boss that extends along the axial direction, and the inner peripheral wall of the first central hole having a first limiting groove, the first limiting boss engaging with the first limiting groove.
[0007] In the above embodiments, circumferential positioning between the insert and the rotor spokes can be achieved, and the torque transmission capability of the rotor assembly can be improved by means of the insert.
[0008] In some embodiments, the first sidewall is further provided with a second limiting boss, the second limiting boss extends circumferentially, and the inner peripheral wall of the first central hole is further provided with a second limiting groove, the second limiting boss and the second limiting groove being engaged and cooperated.
[0009] In the above embodiments, axial and circumferential positioning between the insert and the rotor spokes can be achieved, and the torque transmission capability of the rotor assembly can be improved by means of the insert.
[0010] In some embodiments, the first limiting boss includes a plurality of protrusions arranged at intervals along the axial direction, and the second limiting boss includes a plurality of protrusions arranged at intervals along the axial direction, wherein the plurality of first limiting bosses and the plurality of second limiting bosses are connected in a crisscrossing manner.
[0011] In the above embodiments, the connection strength between the insert and the rotor spokes can be improved, greatly enhancing the torque transmission capability of the rotor assembly, thereby improving the reliability of the generator.
[0012] In some embodiments, the insert has a first sidewall and a second sidewall that are radially opposite each other, the first sidewall facing the rotor spokes and the second sidewall facing the rotor shaft, the first sidewall having a third limiting boss that extends circumferentially, and the inner circumferential wall of the first central hole having a third limiting groove, the third limiting boss engaging with the third limiting groove.
[0013] In the above embodiments, axial positioning between the insert and the rotor spokes can be achieved, and the torque transmission capability of the rotor assembly can be improved by means of the insert.
[0014] In some embodiments, the outer peripheral wall of the rotor shaft is provided with a first mounting groove, the inner peripheral wall of the second central hole of the insert is provided with a second mounting groove, and the circumferential limiting member is respectively engaged with the first mounting groove and the second mounting groove for circumferential limiting of the rotor shaft and the insert.
[0015] In the above embodiments, torque transmission between the rotor shaft and rotor spokes can be realized, ensuring the normal operation of the generator.
[0016] In some embodiments, the first mounting slot includes a plurality of circumferentially arranged slots, the second mounting slot includes a plurality of circumferentially arranged slots, the circumferential limiting member includes a plurality of slots, the plurality of first mounting slots and the plurality of second mounting slots are radially opposite each other, and the circumferential limiting member is respectively engaged with the corresponding first mounting slot and the second mounting slot.
[0017] In the above embodiments, the connection strength between the rotor shaft and the insert can be greatly improved, thereby improving the torque transmission capability between the rotor shaft and the insert and improving the reliability of the generator.
[0018] In some embodiments, the insert is connected to the inner peripheral wall of the first central hole of the rotor spokes by a casting process.
[0019] In the above embodiments, the connection accuracy between the insert and the rotor spokes is improved, thereby improving the torque transmission capability of the rotor assembly and thus improving the reliability of the generator.
[0020] In some embodiments, the insert is interference-fitted with the rotor shaft.
[0021] In the above embodiments, the torque transmission capability between the insert and the rotor shaft can be further improved by the interference fit between the insert and the rotor shaft.
[0022] In some embodiments, the insert and the rotor shaft are made of the same material.
[0023] In the above embodiments, the insert can be cast together with the rotor spokes, and the insert can be made of the same material as the rotor shaft, which improves the torque transmission capability between the insert and the rotor shaft, avoids torque transmission failure, and improves the reliability of the generator.
[0024] In some embodiments, the rotor assembly further includes a locking member, the inner peripheral wall of which is threadedly connected to the outer peripheral wall of the rotor shaft, and is used to convert the rotational motion of the locking member into the linear motion of the locking member. The locking member abuts against one end of the circumferential limiting member along the axial direction, and the outer peripheral wall of the rotor shaft is provided with an abutting boss, which abuts against the other end of the circumferential limiting member along the axial direction.
[0025] In the above embodiments, the axial displacement of the circumferential limiting member can be achieved by the cooperation between the locking member and the abutting boss, thereby improving the torque transmission capability between the rotor shaft and the insert.
[0026] In a second aspect, the present invention provides a generator, the generator including the rotor assembly described above.
[0027] In a third aspect, the present invention provides a vehicle that includes the aforementioned generator.
[0028] Other features and advantages disclosed in this application will be set forth in the following description, or some features and advantages may be inferred from the description or determined without doubt, or may be learned by practicing the above-described technology disclosed in this application.
[0029] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0030] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0031] Figure 1 This is a schematic diagram of the rotor assembly in some embodiments of this utility model.
[0032] Figure 2 This is an exploded view of the rotor assembly in some embodiments of this utility model.
[0033] Figure 3 This is a schematic diagram of the rotor spokes in some embodiments of this utility model.
[0034] Figure 4 This is a schematic diagram of the insert in some embodiments of this utility model.
[0035] The reference numerals in the detailed embodiments are as follows:
[0036] Rotor assembly 100, rotor spokes 10, first center hole 11, first limiting groove 12, second limiting groove 13, insert 20, second center hole 21, first limiting boss 22, second limiting boss 23, second mounting groove 24, rotor shaft 30, abutting boss 31, circumferential limiting member 40, locking member 50, axial AA. Detailed Implementation
[0037] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.
[0038] In related technologies, circumferential relative positioning between the rotor shaft and rotor spokes is achieved through circumferential limiting components. However, this method results in poor torque transmission capability between the rotor shaft and rotor spokes. To improve torque transmission capability, multiple circumferential limiting components can be provided. However, the connection accuracy between the circumferential limiting components and the rotor shaft and rotor spokes is poor, making it difficult to set up multiple circumferential limiting components. Ultimately, the torque transmission capability of the rotor assembly with multiple circumferential limiting components cannot be effectively improved.
[0039] Therefore, this utility model provides a rotor assembly 100, which can improve the torque transmission capability between the rotor shaft 30 and the rotor spokes 10 through the insert 20, thereby improving the reliability of the generator.
[0040] like Figures 1 to 4This utility model provides a rotor assembly 100, which includes rotor spokes 10, inserts 20, rotor shaft 30 and circumferential limiting member 40.
[0041] The rotor spokes 10 have a first central hole 11 extending axially. The insert 20 is fitted into the inner circumferential wall of the first central hole 11 and is fixed relative to the rotor spokes 10. The insert 20 has a second central hole 21 extending axially. The rotor shaft 30 is disposed in the second central hole 21. The circumferential limiting member 40 is connected between the inner circumferential wall of the second central hole 21 and the rotor shaft 30 and is used to circumferentially limit the rotor shaft 30 and the insert 20 relative to each other. In this way, the torque transmission capability between the rotor shaft 30 and the rotor spokes 10 can be improved, thereby improving the reliability of the generator.
[0042] Specifically, in the generator, the rotor shaft 30 is installed inside the first central hole 11 of the rotor spokes 10. A circumferential limiting member 40 is provided between the rotor shaft 30 and the rotor spokes 10 to limit the circumferential displacement between the rotor spokes 10 and the rotor shaft 30, so that the torque of the rotor shaft 30 can be transmitted to the rotor spokes 10. However, due to the low connection accuracy between the circumferential limiting member 40 and the rotor shaft 30 and the rotor spokes 10, as well as the different materials used for the rotor spokes 10 and the rotor shaft 30, the circumferential limiting member 40, the rotor shaft 30 and the rotor spokes may be partially deformed. Therefore, an insert 20 can be provided between the rotor spokes 10 and the circumferential limiting member 40. The insert 20 can be fitted into the inner circumferential wall of the first central hole 11 of the rotor spokes 10 by casting, hot pressing or other methods, and connected to the circumferential limiting member 40 to improve the connection accuracy. In this way, the torque transmission capacity between the rotor shaft 30 and the rotor spokes 10 can be improved, and the overall structural strength of the rotor assembly 100 can be improved.
[0043] Therefore, according to the rotor assembly 100 of this utility model embodiment, by providing an insert 20 between the rotor spokes 10 and the rotor shaft 30, the insert 20 can improve the torque capacity between the rotor shaft 30 and the rotor spokes 10, thereby improving the reliability of the generator.
[0044] It should be further noted that the circumferential, axial and radial directions mentioned in the embodiments of this utility model can be understood as the circumferential direction, axial direction and radial direction of the rotor assembly 100, respectively. Therefore, unless otherwise specified, the following embodiments can be understood in this way.
[0045] Furthermore, the first center hole 11 can be understood as follows: in the axial projection of the rotor assembly 100, the rotor spokes 10 are circular. Thus, the first center hole 11 can be a hole whose center point coincides with the center of the rotor spokes 10. Similarly, the second center hole 21 can be understood as follows: in the axial projection of the rotor assembly 100, the insert 20 is circular. Thus, the second center hole 21 can be a hole whose center point coincides with the center of the insert 20. In addition, in some specific examples, the circumferential limiting member 40 can be set as a flat key.
[0046] like Figures 2 to 4 In some embodiments of this utility model, the insert 20 has a first sidewall and a second sidewall that are radially opposite each other. The first sidewall faces the rotor spokes 10 and the second sidewall faces the rotor shaft 30. The first sidewall is provided with a first limiting boss 22, which extends axially. The inner peripheral wall of the first central hole 11 is provided with a first limiting groove 12. The first limiting boss 22 and the first limiting groove 12 are engaged and fitted together. In this way, circumferential limiting between the insert 20 and the rotor spokes 10 can be achieved, and the torque transmission capability of the rotor assembly 100 can be improved by means of the insert 20.
[0047] Specifically, the insert 20 is provided with a first limiting boss 22, and the inner peripheral wall of the first center hole 11 of the rotor spoke 10 is provided with a first limiting groove 12. The first limiting boss 22 is embedded in the first limiting groove 12, and the first limiting boss 22 can extend along the axial direction of the rotor assembly 100. In this way, the insert 20 can be circumferentially limited relative to the rotor spoke 10, thereby improving the torque transmission capability between the rotor shaft 30 and the rotor spoke 10.
[0048] like Figures 2 to 4 In some embodiments of this utility model, the first sidewall is further provided with a second limiting boss 23, which extends circumferentially, and the inner peripheral wall of the first central hole 11 is further provided with a second limiting groove 13, and the second limiting boss 23 and the second limiting groove 13 are fitted together; in this way, axial and circumferential limiting between the insert 20 and the rotor spoke 10 can be realized, and the torque transmission capability of the rotor assembly 100 can be improved by means of the insert 20.
[0049] Specifically, the insert 20 is provided with a second limiting boss 23, and the inner peripheral wall of the first center hole 11 of the rotor spoke 10 is provided with a second limiting groove 13. The second limiting boss 23 is embedded in the second limiting groove 13, and the second limiting boss 23 can extend along the circumference of the rotor assembly 100. In this way, the insert 20 can be axially limited relative to the rotor spoke 10. On the basis of the circumferential limitation between the insert 20 and the rotor spoke 10, the torque transmission capability between the rotor shaft 30 and the rotor spoke 10 is further improved.
[0050] like Figures 2 to 4In some embodiments of this utility model, the first limiting boss 22 includes a plurality of first limiting bosses arranged at intervals along the axial direction, and the second limiting boss 23 includes a plurality of second limiting bosses arranged at intervals along the axial direction. The plurality of first limiting bosses 22 and the plurality of second limiting bosses 23 are connected in a crisscross pattern. In this way, the connection strength between the insert 20 and the rotor spoke 10 can be improved, the torque transmission capability of the rotor assembly 100 can be greatly improved, and the reliability of the generator can be improved.
[0051] It is understandable that a first limiting boss 22 can be cross-connected with multiple second limiting bosses 23, and a second limiting boss 23 can be cross-connected with multiple first limiting bosses 22, thus forming a crisscrossing arrangement of multiple first limiting bosses 22 and multiple second limiting bosses 23. Correspondingly, a first limiting groove 12 can be staggered with multiple second limiting grooves 13, and a second limiting groove 13 can be staggered with multiple first limiting grooves 12, thus forming a crisscrossing arrangement of multiple first limiting grooves 12 and multiple second limiting grooves 13. In this way, the crisscrossing first limiting bosses 22 and second limiting bosses 23 can be correspondingly embedded in the crisscrossing first limiting grooves 12 and second limiting grooves 13 to increase the connection area between the insert 20 and the rotor spokes 10, thereby increasing the connection strength between the insert 20 and the rotor spokes 10, and further improving the reliability of the generator.
[0052] like Figures 2 to 4 In some embodiments of this utility model, the insert 20 has a first sidewall and a second sidewall that are radially opposite each other. The first sidewall faces the rotor spokes 10 and the second sidewall faces the rotor shaft 30. The first sidewall is provided with a third limiting boss that extends circumferentially. The inner circumferential wall of the first central hole 11 is provided with a third limiting groove. The third limiting boss and the third limiting groove are engaged. In this way, axial positioning between the insert 20 and the rotor spokes 10 can be achieved, and the torque transmission capability of the rotor assembly 100 can be improved by means of the insert 20.
[0053] Specifically, the insert 20 is provided with a third limiting boss, and the inner peripheral wall of the first central hole 11 of the rotor spoke 10 is provided with a third limiting groove. The third limiting boss is embedded in the third limiting groove, and the third limiting boss can extend along the circumference of the rotor assembly 100. In this way, the insert 20 can be axially limited relative to the rotor spoke 10, thereby improving the torque transmission capability between the rotor shaft 30 and the rotor spoke 10.
[0054] In addition, in some specific examples, the third limiting boss can be set as the second limiting boss 23 in the above embodiment, and the third limiting groove can be set as the second limiting groove 13 in the above embodiment.
[0055] like Figure 2In some embodiments of this utility model, the outer peripheral wall of the rotor shaft 30 is provided with a first mounting groove, and the inner peripheral wall of the second central hole 21 of the insert 20 is provided with a second mounting groove 24. The circumferential limiting member 40 is respectively engaged with the first mounting groove and the second mounting groove 24 for relative circumferential limiting of the rotor shaft 30 and the insert 20. In this way, torque transmission between the rotor shaft 30 and the rotor spoke 10 can be realized to ensure the normal operation of the generator.
[0056] It is understandable that the circumferential limiting member 40 is respectively embedded in the first mounting groove and the second mounting groove 24, so that the rotor shaft 30 and the insert 20 are circumferentially limited. When the rotor shaft 30 rotates, the torque can be transmitted to the insert 20. The insert 20 is tightly embedded in the limiting boss of the rotor spoke 10, so that the torque on the insert 20 can be transmitted to the rotor spoke 10 more stably, thereby improving the torque transmission capability of the rotor assembly 100.
[0057] like Figure 2 In some embodiments of this utility model, the first mounting groove includes a plurality of grooves arranged circumferentially, the second mounting groove 24 includes a plurality of grooves arranged circumferentially, and the circumferential limiting member 40 includes a plurality of grooves. The plurality of first mounting grooves and the plurality of second mounting grooves 24 are radially opposite each other, and the circumferential limiting member 40 is respectively engaged with the corresponding first mounting groove and second mounting groove 24. In this way, the connection strength between the rotor shaft 30 and the insert 20 can be greatly improved, thereby improving the torque transmission capability between the rotor shaft 30 and the insert 20 and improving the reliability of the generator.
[0058] Understandably, in related technologies, the rotor shaft 30 and rotor spokes 10 are indirectly connected through circumferential limiting members 40 to achieve torque transmission. However, the fitting accuracy between the rotor shaft 30, rotor spokes 10, and circumferential limiting members 40 is low, and the different manufacturing materials make the structure prone to deformation. In contrast, the insert 20 can connect the rotor spokes 10 and the circumferential limiting members 40 by casting. Therefore, the insert 20 can be connected to multiple circumferential limiting members 40, which can improve the connection strength between the insert 20 and multiple circumferential limiting members 40 while ensuring connection accuracy, thereby improving the torque transmission capability between the rotor shaft 30 and the insert 20 and improving the reliability of the generator.
[0059] In some embodiments of this utility model, the insert 20 is connected to the inner peripheral wall of the first central hole 11 of the rotor spoke 10 by casting process; in conjunction with the foregoing, it can be understood that the inner peripheral wall of the first central hole 11 of the rotor spoke 10 is provided with a limiting boss, and the insert 20 can be embedded in the limiting boss by casting to improve the connection accuracy between the insert 20 and the rotor spoke 10, thereby improving the torque transmission capability of the rotor assembly 100 and thus improving the reliability of the generator.
[0060] In some embodiments of this utility model, the insert 20 is interference-fitted with the rotor shaft 30; it can be understood that the torque transmission capability between the insert 20 and the rotor shaft 30 can be further improved through the interference fit between the insert 20 and the rotor shaft 30.
[0061] In some embodiments of this utility model, the insert 20 and the rotor shaft 30 are made of the same material. In conjunction with the foregoing, it can be understood that, in related technologies, the rotor spokes 10 and the rotor shaft 30 are made of different materials. During generator operation, the strength, thermal expansion system, elongation, etc., of the rotor spokes 10 and the rotor shaft 30 differ, resulting in low reliability under extreme high torque conditions. This means that the rotor assembly 100 may experience torque transmission failure, deformation of the circumferential limiting member 40, the rotor shaft 30, and the rotor spokes 10. Therefore, the insert 20 can be cast together with the rotor spokes 10, and the insert 20 can be made of the same material as the rotor shaft 30. This improves the torque transmission capability between the insert 20 and the rotor shaft 30, avoids torque transmission failure, and improves the reliability of the generator.
[0062] like Figure 2 In some embodiments of this utility model, the rotor assembly 100 further includes a locking member 50. The inner peripheral wall of the locking member 50 is threadedly connected to the outer peripheral wall of the rotor shaft 30 and is used to convert the rotational motion of the locking member 50 into the linear motion of the locking member 50. The locking member 50 abuts against one end of the circumferential limiting member 40 along the axial direction. The outer peripheral wall of the rotor shaft 30 is provided with an abutting boss 31, which abuts against the other end of the circumferential limiting member 40 along the axial direction. With this arrangement, the axial displacement of the circumferential limiting member 40 can be realized through the cooperation of the locking member 50 and the abutting boss 31, thereby improving the torque transmission capability between the rotor shaft 30 and the insert 20.
[0063] During assembly, the rotor shaft 30 is set in the first center hole 11 of the rotor spoke 10, and the circumferential limiting member 40 can be set in the first mounting groove of the rotor shaft 30, with one end abutting against the abutting boss 31 of the rotor shaft 30. The insert 20 can be connected to the inner circumferential wall of the first center hole 11 of the rotor spoke 10 by casting, and connected to the outer circumferential wall of the rotor shaft 30 with an interference fit. Then, the locking member 50 is screwed onto the rotor shaft 30, that is, the locking member 50 can rotate relative to the rotor shaft 30. With the help of the threaded connection between the locking member 50 and the rotor shaft 30, the locking member 50 moves along the circumferential limiting member 40 along the axial direction of the rotor assembly 100 until the locking member 50 abuts against the other end of the circumferential limiting member 40, and in conjunction with the abutting boss 31, the axial limiting of the circumferential limiting member 40 is achieved, thereby improving the torque transmission capability between the rotor shaft 30 and the insert 20.
[0064] In some specific examples of this utility model, the rotor shaft 30 is provided with a plurality of through first oil injection holes, the insert 20 is provided with a plurality of through second oil injection holes, and the rotor spokes 10 is provided with a plurality of through third oil injection holes. After the rotor assembly 100 is assembled, the plurality of first oil injection holes, the plurality of second oil injection holes, and the plurality of third oil injection holes correspond one-to-one, which facilitates technicians to inject cooling medium into the rotor assembly 100 through the first oil injection holes, the second oil injection holes, and the third oil injection holes, thereby achieving cooling of the rotor assembly 100.
[0065] This utility model embodiment also provides a generator, which includes the rotor assembly 100 in the above embodiment; by applying the rotor assembly 100 of the above embodiment, the rotor assembly 100 has a strong torque transmission capability, which can improve the reliability of the generator.
[0066] This utility model embodiment also provides a vehicle, which includes the generator described above. By applying the generator described above, the generator has high reliability and can improve the working performance of the vehicle.
[0067] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0068] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0069] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or a point connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0070] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.
[0071] In all embodiments of this application, "large" and "small" are relative terms, "more" and "less" are relative terms, and "upper" and "lower" are relative terms. The embodiments of this application will not elaborate further on the expression of such relative terms.
[0072] It should be understood that the phrases "in this embodiment," "in this application embodiment," or "as an optional implementation" throughout the specification mean that a specific feature, structure, or characteristic related to an embodiment is included in at least one embodiment of this application. Therefore, the phrases "in this embodiment," "in this application embodiment," or "as an optional implementation" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Those skilled in the art should also understand that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily essential to this application.
[0073] In the various embodiments of this application, it should be understood that the sequence number of each process does not necessarily imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.
[0074] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of protection of the claims.
Claims
1. A rotor assembly, characterized in that, include: Rotor spokes (10), the rotor spokes (10) having a first central hole (11) extending axially; Insert (20), the insert (20) is fitted into the inner peripheral wall of the first central hole (11) and fixed relative to the rotor spokes (10), the insert (20) having a second central hole (21) extending along the axial direction; Rotor shaft (30), the rotor shaft (30) is disposed in the second central hole (21); A circumferential limiting member (40) is connected between the inner circumferential wall of the second central hole (21) and the rotor shaft (30), and is used to circumferentially limit the rotor shaft (30) and the insert (20).
2. The rotor assembly according to claim 1, characterized in that, The insert (20) has a first sidewall and a second sidewall that are radially opposite each other. The first sidewall faces the rotor spokes (10) and the second sidewall faces the rotor shaft (30). The first sidewall is provided with a first limiting boss (22) that extends along the axial direction. The inner peripheral wall of the first central hole (11) is provided with a first limiting groove (12). The first limiting boss (22) and the first limiting groove (12) are engaged and cooperated.
3. The rotor assembly according to claim 2, characterized in that, The first sidewall is also provided with a second limiting boss (23), which extends circumferentially, and the inner peripheral wall of the first central hole (11) is also provided with a second limiting groove (13), which engages with the second limiting boss (23).
4. The rotor assembly according to claim 3, characterized in that, The first limiting boss (22) includes a plurality of them arranged at intervals along the axial direction, and the second limiting boss (23) includes a plurality of them arranged at intervals along the axial direction. The plurality of first limiting bosses (22) and the plurality of second limiting bosses (23) are connected in a crisscrossing manner.
5. The rotor assembly according to any one of claims 1-4, characterized in that, The insert (20) has a first sidewall and a second sidewall that are radially opposite each other. The first sidewall faces the rotor spokes (10) and the second sidewall faces the rotor shaft (30). The first sidewall is provided with a third limiting boss that extends in the circumferential direction. The inner circumferential wall of the first central hole (11) is provided with a third limiting groove. The third limiting boss and the third limiting groove are engaged and cooperated.
6. The rotor assembly according to any one of claims 1-4, characterized in that, The outer peripheral wall of the rotor shaft (30) is provided with a first mounting groove, and the inner peripheral wall of the second central hole (21) of the insert (20) is provided with a second mounting groove (24). The circumferential limiting member (40) is respectively engaged with the first mounting groove and the second mounting groove (24) for circumferential limiting of the rotor shaft (30) and the insert (20).
7. The rotor assembly according to claim 6, characterized in that, The first mounting groove includes a plurality of grooves arranged circumferentially, the second mounting groove (24) includes a plurality of grooves arranged circumferentially, the circumferential limiting member (40) includes a plurality of grooves, the plurality of first mounting grooves and the plurality of second mounting grooves (24) are radially opposite each other, and the circumferential limiting member (40) is respectively engaged with the corresponding first mounting groove and the second mounting groove (24).
8. The rotor assembly according to any one of claims 1-4, characterized in that, The insert (20) is connected to the inner peripheral wall of the first central hole (11) of the rotor spoke (10) by a casting process; And / or, the insert (20) is interference-fitted with the rotor shaft (30); And / or, the insert (20) and the rotor shaft (30) are made of the same material.
9. The rotor assembly according to any one of claims 1-4, characterized in that, It also includes a locking member (50), the inner peripheral wall of which is threadedly connected to the outer peripheral wall of the rotor shaft (30), and is used to convert the rotational motion of the locking member (50) into the linear motion of the locking member (50). The locking member (50) abuts against one end of the circumferential limiting member (40) along the axial direction. The outer peripheral wall of the rotor shaft (30) is provided with an abutting boss (31), which abuts against the other end of the circumferential limiting member (40) along the axial direction.
10. A generator, characterized in that, The rotor assembly includes any one of claims 1-9.
11. A vehicle, characterized in that, Includes the generator as described in claim 10.