Joint device, torque transmission assembly and vehicle
By adding a guide structure to the coupling device, the technical problems of adding components to the coupling device are solved, the misalignment problem of the coupling parts is solved, reliable torque transmission is achieved, and the reliability of use is improved.
Patent Information
- Application Number
- CN202520337959.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-02-27
AI Technical Summary
The two engaging parts of the engagement device are prone to misalignment during assembly, which can lead to unreliable torque transmission and the risk of tooth damage.
A guiding structure, including a guiding part and a mating part, is added to the engagement device to guide the first end face teeth to mesh tightly with the second end face teeth during the assembly process, so as to avoid misalignment during installation.
This effectively avoids tooth damage caused by misaligned installation, ensures reliable torque transmission of the coupling components, and improves the reliability of the coupling device.
Smart Images
Figure CN223708338U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the technical field of torque transmission, in particular to a coupling device, a torque transmission assembly and a vehicle. BACKGROUND
[0002] In the related art, the teeth of two coupling members of a coupling device are generally invisible when assembled, so that it is impossible to reliably identify whether the teeth of the two coupling members are misaligned during assembly. The misalignment can be understood as the two coupling members being misaligned with each other in the rotation direction around the rotation axis during assembly, so that the teeth of the two coupling members slide along the tooth flanks in a staggered manner. If the two coupling members of the coupling device are clamped to each other in the wrong position, on the one hand, the torque cannot be transmitted, and on the other hand, there is a risk of tooth damage due to the lack of torsional connection. SUMMARY
[0003] The purpose of the present disclosure is to provide a coupling device, a torque transmission assembly and a vehicle, so as to ensure that the two coupling members of the coupling device can be located in the correct installation position and reliably transmit torque, so as to at least partially solve the problems in the related art.
[0004] In order to achieve the above-mentioned purpose, according to a first aspect of the present disclosure, a coupling device is provided. The coupling device comprises:
[0005] a first coupling member comprising a first end face tooth portion coaxially arranged around a first rotation axis and a mounting channel, the mounting channel being located at the center of the first end face tooth portion;
[0006] a second coupling member comprising a second end face tooth portion coaxially arranged around a second rotation axis and a mounting pin, the mounting pin being located at the center of the second end face tooth portion; and
[0007] a guide structure comprising a guide portion and a matching portion, one of the guide portion and the matching portion being provided on the mounting channel, and the other being provided on the mounting pin;
[0008] the guide portion and the matching portion are used to guide the first end face tooth portion and the second end face tooth portion to be closely meshed with each other when the mounting pin of the second coupling member is inserted into the mounting channel of the first coupling member.
[0009] Optionally, after the first end face tooth portion and the second end face tooth portion are closely meshed, the guide portion and the matching portion are in clearance fit.
[0010] Optionally, one of the guide portion and the matching portion comprises a guide pin, and the other comprises a guide groove.
[0011] Optionally, the guide pin has at least one guide surface, the guide slot has at least one matching surface, the guide surface matches the matching surface, and the guide surface is used for guiding the second tooth of the second end face tooth portion into the space between the two adjacent first teeth of the first end face tooth portion.
[0012] Optionally, the guide pin has two guide surfaces, and the distance between the two guide surfaces gradually decreases in the direction of the first end face tooth portion along the first rotation axis.
[0013] The guide slot has two matching surfaces, and the distance between the two matching surfaces gradually decreases in the direction of the second end face tooth portion along the second rotation axis.
[0014] Optionally, the guide pin is one, and the guide slot is multiple, and the multiple guide slots are arranged along the circumference of the mounting pin.
[0015] Optionally, the guide pin is arranged on the inner wall surface of the mounting channel, and the guide slot is arranged on the outer wall surface of the mounting pin.
[0016] Optionally, the mounting pin is a tapered pin, the guide slot is a tapered guide slot, and the depth of the guide slot gradually increases in the direction of the second end face tooth portion along the second rotation axis.
[0017] According to a second aspect of the present disclosure, a torque transmission assembly is provided. The torque transmission assembly comprises a driving shaft cage, a hub bearing, and the engagement device described above, the driving shaft cage is connected with the hub bearing, one of the first engagement member and the second engagement member of the engagement device is connected to the driving shaft cage, and the other one is connected to the hub bearing.
[0018] According to a third aspect of the present disclosure, a vehicle is provided, which comprises the engagement device described above, or the torque transmission assembly described above.
[0019] Through the above technical solutions, i.e., the engagement device, the torque transmission assembly, and the vehicle. The engagement device comprises a first engagement member, a second engagement member, and a guide structure. When the first engagement member and the second engagement member are assembled, the mounting pin of the second engagement member is inserted into the mounting channel of the first engagement member, and in the process of gradually inserting, one of the first engagement member and the second engagement member can be appropriately rotated, so that the guide part and the matching part of the guide structure are matched to accurately guide the first end face tooth portion and the second end face tooth portion to be closely engaged. The engagement device provided by the present disclosure can effectively avoid the problem of tooth damage caused by misalignment installation of the first end face tooth portion and the second end face tooth portion by adding the guide structure, and can further reliably transmit torque under the fastening effect of the fastening member, thereby improving the use reliability of the engagement device.
[0020] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF DRAWINGS
[0021] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, illustrate embodiments of the present disclosure and are included to provide a further understanding of the present disclosure and serve to explain the principles of the present disclosure, but do not limit the present disclosure. In the drawings:
[0022] Figure 1 is a first perspective structural schematic view of a joining device provided according to an embodiment of the present disclosure;
[0023] Figure 2 is a structural schematic view of a first joining member provided according to an embodiment of the present disclosure;
[0024] Figure 3 is a structural schematic view of a second joining member provided according to an embodiment of the present disclosure;
[0025] Figure 4 is Figure 1 is a sectional view at C-C in FIG. 1;
[0026] Figure 5 is Figure 1 is an enlarged schematic view at A in FIG. 1;
[0027] Figure 6 is a second perspective structural schematic view of a joining device provided according to an embodiment of the present disclosure;
[0028] Figure 7 is Figure 6 is an enlarged schematic view at B in FIG. 1.
[0029] BRIEF DESCRIPTION OF REFERENCE NUMERALS
[0030] 100, joining device;
[0031] 1, first joining member; 11, mounting passage; 12, first end face tooth portion; 121, first tooth;
[0032] 2, second joining member; 21, mounting pin; 211, mounting hole; 22, second end face tooth portion; 221, second tooth;
[0033] 3, guide structure;
[0034] 31, guide portion; 311, guide pin; 311a, guide surface;
[0035] 32, fitting portion; 321, guide groove; 321a, fitting surface. DETAILED DESCRIPTION
[0036] The specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended for explanation and interpretation of the present disclosure and are not intended to limit the present disclosure.
[0037] In the present disclosure, "inner, outer" refers to the inner and outer of the profile of the corresponding components, unless otherwise stated. In addition, it should be noted that the terms such as "first, second" are used to distinguish one element from another.
[0038] According to a first embodiment of the present disclosure, as shown in Figures 1 to 7 , a coupling device 100 is provided. The coupling device 100 can include a first coupling member 1, a second coupling member 2, and a guide structure 3. As shown in Figure 2 , the first coupling member 1 can include a first face gear 12 and a mounting channel 11 coaxially arranged around a first rotation axis D. The mounting channel 11 is located at the center of the first face gear 12. As shown in Figure 3 , the second coupling member 2 can include a second face gear 22 and a mounting pin 21 coaxially arranged around a second rotation axis E. The mounting pin 21 is located at the center of the second face gear 22. As shown in Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 , the guide structure 3 can include a guide portion 31 and a mating portion 32. One of the guide portion 31 and the mating portion 32 is provided in the mounting channel 11, and the other is provided in the mounting pin 21. The guide portion 31 and the mating portion 32 are used to guide the first face gear 12 and the second face gear 22 to closely engage with each other when the mounting pin 21 of the second coupling member 2 is inserted into the mounting channel 11 of the first coupling member 1.
[0039] It should be noted here that in order to enable those skilled in the art to better understand the guiding scheme of the guide structure 3 of the present application, the guiding scheme of the guide structure 3 will be described in detail below in combination with Figure 2 , Figure 3 , Figure 5 and Figure 7 , as follows:
[0040] When the first coupling member 1 and the second coupling member 2 are assembled, as shown in Figure 2 and Figure 3 , the mounting pin 21 of the second coupling member 2 is inserted into the mounting channel 11 of the first coupling member 1, as shown in Figure 7As shown, the guide portion 31 and the cooperating portion 32 are in a tooth tip-tooth tip state at the initial alignment. During the gradual insertion, one of the first engaging member 1 and the second engaging member 2 can be appropriately rotated, so that the guide space between the guide portion 31 and the cooperating portion 32 of the guide structure 3 gradually decreases, as shown. Figure 5 As shown, the first end face tooth portion 12 and the second end face tooth portion 22 are also gradually changed to a tooth tip-tooth groove state at the same time. Finally, the guide structure 3 can accurately guide the first end face tooth portion 12 and the second end face tooth portion 22 to reach the tooth tip-tooth groove state, i.e., the correct installation position, i.e., the state of close meshing of the first end face tooth portion 12 and the second end face tooth portion 22.
[0041] The engaging device 100 provided by the present disclosure can effectively avoid the problem of tooth damage caused by misaligned installation of the first end face tooth portion 12 and the second end face tooth portion 22, and can further reliably transmit torque to the first engaging member 1 and the second engaging member 2 under the tightening action of the fastener, thereby improving the use reliability of the engaging device 100.
[0042] It should be noted that the first end face tooth portion 12 can include a plurality of first teeth 121 and a first tooth groove formed between adjacent two first teeth 121, and the second end face tooth portion 22 can include a plurality of second teeth 221 and a second tooth groove formed between adjacent two second teeth 221. When they are in close meshing, the first teeth 121 are located in the second tooth groove, and the second teeth 221 are located in the first tooth groove. The first engaging member 1 and the second engaging member 2 connected by the fastener, the first rotation axis D and the second rotation axis E coincide, and the first engaging member 1 and the second engaging member 2 can rotate together around the coinciding rotation axis. The first teeth 121 and the second teeth 221 can be constructed in any suitable structure known in the related art to achieve normal transmission of torque between the first engaging member 1 and the second engaging member 2, which will not be described here.
[0043] In some embodiments, the guide portion 31 and the cooperating portion 32 are clearance-fitted after the first end face tooth portion 12 and the second end face tooth portion 22 are in close meshing. Such a design can enable the guide structure 3 to have sufficient guide space to guide the first end face tooth portion 12 and the second end face tooth portion 22 to be in close meshing, thereby avoiding the problem of misaligned installation of the first end face tooth portion 12 and the second end face tooth portion 22 caused by the cooperation (including abutting or engaging force) of the guide portion 31 and the cooperating portion 32 of the guide structure 3.
[0044] The guide portion 31 and the cooperating portion 32 can be constructed in any suitable structure. In some embodiments, as shown, Figure 2 , Figure 3 and Figure 4As shown, one of the guiding part 31 and the cooperating part 32 can include a guide pin 311, and the other one includes a guide groove 321. The guide pin 311 and the guide groove 321 are matched with each other to achieve the guiding purpose, which is simple in structure, reliable in guiding, and low in production cost. Of course, it can be understood that the guiding part 31 and the cooperating part 32 can also be achieved by other suitable structures, which are not limited herein, and a person skilled in the art can design and adjust according to the actual situation.
[0045] In some embodiments, as shown in Figure 2 , Figure 3 and Figure 5 , the guide pin 311 has at least one guiding surface 311a, and the guide groove 321 has at least one cooperating surface 321a, the guiding surface 311a cooperates with the cooperating surface 321a to guide the second tooth 221 of the second end surface tooth part 22 to enter between the adjacent two first teeth 121 of the first end surface tooth part 12. The arrangement of the guiding surface 311a and the cooperating surface 321a can make the guide pin 311 and the guide groove 321 reliably fit on at least one side to guide the first end surface tooth part 12 of the first engaging piece 1 and the second end surface tooth part 22 of the second engaging piece 2 to engage smoothly and accurately.
[0046] In one embodiment, as shown in Figure 2 , Figure 3 and Figure 5 , the guide pin 311 has two guiding surfaces 311a, and the distance between the two guiding surfaces 311a gradually decreases in the direction of the first rotating axis D towards the first end surface tooth part 12; and / or the guide groove 321 has two cooperating surfaces 321a, and the distance between the two cooperating surfaces 321a gradually decreases in the direction of the second rotating axis E towards the second end surface tooth part 22. Such a design makes the guide pin 311 and the guide groove 321 both present an "inverted trapezoidal" structure, and in the initial position of the guide pin 311 relative to the guide groove 321, the smaller end of the guide pin 311 can be aligned with the larger end of the guide groove 321, and vice versa, which makes the guiding part 31 and the cooperating part 32 of the guide structure more convenient to match with each other. In addition, such a design can also achieve that the guide space gradually decreases during the insertion of the guide pin 311 into the guide groove 321, and the guide pin 311 can have sufficient guiding adjustment space relative to the guide groove 321 to ensure the accurate engagement of the first end surface tooth part 12 and the second end surface tooth part 22.
[0047] In some embodiments, as shown in Figure 2 , Figure 3 and Figure 4As shown, the guide pin 311 can be one. The guide slots 321 are multiple, and the multiple guide slots 321 are arranged along the circumference of the mounting pin 21. In this way, the guide pin 311 can effectively reduce the manufacturing cost of the guide pin 311 while ensuring the guiding purpose. Further, this design can enable a single guide pin 311 to achieve the guiding purpose corresponding to any one of the guide slots 321, which makes the second joint 2 or the first joint 1 provided with the guide slots 321 can be easily and conveniently plugged with the other one provided with the guide pin 311, thereby improving the convenience of the guiding structure 3.
[0048] In some other embodiments, the guide pin 311 and the guide slot 321 can both be multiple, and when the multiple guide pins 311 and the multiple guide slots 321 are aligned at the same time, the positions of the first end face tooth part 12 and the second end face tooth part 22 can be aligned, and the multiple guide pins 311 and the multiple guide slots 321 can gradually form a clearance fit between them as the first end face tooth part 12 and the second end face tooth part 22 are engaged, which can also ensure the engagement of the first end face tooth part 12 and the second end face tooth part 22.
[0049] It can be understood that in some other embodiments, the guide pin 311 can be multiple, the guide slot 321 can be one, and the multiple guide pins 311 are arranged along the circumference of the mounting channel 11, which can also ensure the engagement of the first end face tooth part 12 and the second end face tooth part 22.
[0050] In some embodiments, as shown in Figure 2 , Figure 3 and Figure 4 , the guide pin 311 is arranged on the inner wall surface of the mounting channel 11, and the guide slot 321 is arranged on the outer wall surface of the mounting pin 21. In this way, the space between the first joint 1 and the second joint 2 is reasonably utilized. Specifically, the guide pin 311 protruding from the inner wall surface of the mounting channel 11 is located on the inner side of the mounting channel 11, which does not affect the arrangement of other structures and can reliably achieve the guiding function of the guiding part 31. Correspondingly, the guide slot 321 recessed in the outer wall surface of the mounting pin 21 can avoid increasing the radial dimension of the mounting pin 21 and can reliably achieve the matching function of the matching part 32.
[0051] In some embodiments, as shown in Figure 2 , Figure 3 and Figure 4As shown, the mounting pin 21 is a tapered pin, the guide groove 321 is a tapered guide groove 321, and the depth of the guide groove 321 gradually increases in the direction of the second end face tooth portion 22 along the second rotation axis E. Such a design can facilitate the insertion of the second engaging member 2 into the mounting channel 11 of the first engaging member 1 through the mounting pin 21, and the gradually increasing depth of the guide groove 321 can provide sufficient extension space for the guide pin 311 to achieve the guiding purpose, thereby enabling the first end face tooth portion 12 and the second end face tooth portion 22 to be closely engaged.
[0052] In some embodiments, as shown in Figure 3 and Figure 4 As shown, the center of the mounting pin 21 is provided with a mounting hole 211 for connecting the first engaging member 1 and the second engaging member 2. The mounting hole 211 is used for the fastener to pass through to fasten the first engaging member 1 and the second engaging member 2. The fastener can be a fastening bolt. The fastening bolt passes through the first engaging member 1 and the second engaging member 2, producing a pressing effect, so that the first end face tooth portion 12 on the first engaging member 1 and the second end face tooth portion 22 on the second engaging member 2 are closely engaged, ensuring torque transmission.
[0053] According to a second embodiment of the present disclosure, a torque transmission assembly is provided. The torque transmission assembly can include a drive shaft cage, a hub bearing, and the above-mentioned engaging device 100, the drive shaft cage and the hub bearing are connected, one of the first engaging member 1 and the second engaging member 2 of the engaging device 100 is connected to the drive shaft cage, and the other of the first engaging member 1 and the second engaging member 2 is connected to the hub bearing. Wherein, the drive shaft cage and the hub bearing can be connected by a fastening bolt, and at the same time the fastening bolt passes through the first engaging member 1 and the second engaging member 2, producing a pressing effect, so that the first end face tooth portion 12 on the first engaging member 1 and the second end face tooth portion 22 on the second engaging member 2 are closely engaged, ensuring torque transmission.
[0054] According to a third embodiment of the present disclosure, a vehicle is provided. The vehicle can include the above-mentioned engaging device 100 or the above-mentioned torque transmission assembly. The vehicle can have more reliable use safety, improving the use experience of the occupants.
[0055] The preferred embodiments of the present disclosure are described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details in the above-described embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
[0056] It should also be noted that various technical features described in the above detailed description are capable of being combined in any suitable manner unless otherwise explicitly stated. To avoid unnecessary repetition, various possible combinations of features are not all explicitly described in the present disclosure.
[0057] Furthermore, various embodiments of the present disclosure can be combined in any suitable manner, as long as it does not contradict the idea of the present disclosure, and it should be considered as disclosed in the present disclosure.
Claims
1. A coupling device, characterized in that, include: The first coupling member includes a first end face tooth portion and a mounting channel arranged coaxially about a first rotation axis, wherein the mounting channel is located at the center of the first end face tooth portion; The second coupling includes a second end face tooth portion and a mounting pin arranged coaxially about a second rotation axis, wherein the mounting pin is located at the center of the second end face tooth portion; as well as A guiding structure includes a guiding part and a mating part, one of which is disposed in the mounting channel and the other is disposed in the mounting pin; The guide portion and the mating portion are used to cooperate with each other to guide the first end face teeth to engage tightly with the second end face teeth when the mounting pin of the second connector is inserted into the mounting channel of the first connector.
2. The joining device according to claim 1, characterized in that, After the first end face teeth and the second end face teeth are tightly engaged, the guide portion and the mating portion are in clearance engagement.
3. The joining device according to claim 1, characterized in that, One of the guiding part and the mating part includes a guide pin, and the other includes a guide groove.
4. The joining device according to claim 3, characterized in that, The guide pin has at least one guide surface, and the guide groove has at least one mating surface. The guide surface mates with the mating surface to guide the second tooth of the second end face tooth into the space between two adjacent first teeth of the first end face tooth.
5. The joining device according to claim 4, characterized in that, The guide pin has two guide surfaces, and the distance between the two guide surfaces gradually decreases along the first axis of rotation in the direction toward the teeth on the first end face; and / or The guide groove has two mating surfaces, and the distance between the two mating surfaces gradually decreases along the direction of the second rotation axis toward the teeth of the second end face.
6. The joining device according to claim 3, characterized in that, There is one guide pin; there are multiple guide grooves, and the multiple guide grooves are arranged at intervals along the circumference of the mounting pin.
7. The coupling device according to claim 3, characterized in that, The guide pin is located on the inner wall of the mounting channel, and the guide groove is located on the outer wall of the mounting pin.
8. The coupling device according to claim 3, characterized in that, The mounting pin is a tapered pin, the guide groove is a tapered guide groove, and the depth of the guide groove gradually increases along the direction towards the teeth on the second end face in the direction of the second rotation axis.
9. A torque transmission assembly, characterized in that, The device includes a drive shaft ball cage, a wheel hub bearing, and a coupling device as described in any one of claims 1-8, wherein the drive shaft ball cage and the wheel hub bearing are connected, and one of the first coupling member and the second coupling member of the coupling device is connected to the drive shaft ball cage, and the other of the first coupling member and the second coupling member is connected to the wheel hub bearing.
10. A vehicle, characterized in that, It includes the engagement device as described in any one of claims 1-8, or the torque transmission assembly as described in claim 9.