Connecting structure and wet-type double-clutch device

Abstract

The invention discloses a connecting structure and a wet-type double-clutch device, and relates to the technical field of automobile transmission, and the connecting structure comprises a main rotating hub, a release bearing seat and a pre-tightening force assembly. The main rotating hub and the release bearing seat can be matched in an inserted mode and are clamped and locked through at least one of a first clamping structure and a second clamping structure which have elastic deformation. And the pre-tightening force assembly ensures that the first clamping structure and the second clamping structure are kept in contact with each other by a certain acting force in the separation direction of the main rotating hub and the separation bearing seat, so that the stability is improved, and the assembly error is eliminated. According to the design, the mounting and dismounting processes of the main rotating hub and the release bearing seat are simplified, the maintenance cost is reduced, and meanwhile, the structural compactness and the dismounting efficiency are improved.

Description

Technical Field

[0001] The present application relates to the field of automobile transmission technology, and in particular to a connection structure and a wet dual clutch device. Background Art

[0002] In modern automobile transmission systems, wet dual clutches are widely used due to their advantages such as fast and smooth shifting and high efficiency. The wet dual clutch is mainly composed of two clutch components, which are respectively connected to the output shaft of the engine and their separation and combination are controlled by the hydraulic system. However, the traditional wet dual clutch design has some structural limitations, especially the installation and disassembly process of the main hub and CSC (clutch release bearing) base is relatively complicated, the technical requirements of the operator are high, and it takes a lot of time and labor intensity during maintenance, and the maintenance cost is high.

[0003] In view of this, there is an urgent need for a new connection structure that has the characteristics of reliable connection and easy disassembly to simplify the installation and maintenance process, reduce the technical requirements for operators, and ensure that the performance of the wet dual clutch is not affected. Summary of the invention

[0004] In view of this, the purpose of this application is to provide a connection structure and a wet dual-clutch device, which have the characteristics of reliable connection and easy disassembly, so as to simplify the installation and maintenance process, reduce the technical requirements for operators, and ensure that the performance of the wet dual clutch is not affected.

[0005] In order to achieve the above technical purpose, the present application provides a connection structure, including a main rotating hub, a separation bearing seat and a preload assembly;

[0006] The main rotating hub is provided with a first clamping structure;

[0007] The separation bearing seat can be plugged and matched with the main rotating hub, and is provided with a second clamping structure;

[0008] The first clamping structure has elastic deformation and / or the second clamping structure has elastic deformation;

[0009] The first clamping structure and the second clamping structure are mutually clamped when the separation bearing seat and the main rotating hub are inserted and matched in place, and can contact and abut against each other in the separation direction of the separation bearing seat and the main rotating hub;

[0010] The preload force assembly is used to provide a preload force for contacting and resisting the first clamping structure and the second clamping structure in a separation direction.

[0011] Furthermore, the first clamping structure is an elastic clamping claw structure, and a claw hook portion is provided at one end thereof away from the main rotating hub;

[0012] The second clamping structure is a clamping groove structure or a step structure, and is clamped and matched with the claw hook portion.

[0013] Furthermore, there are at least two first clamping structures, which are distributed at intervals around the central axis of the main hub.

[0014] Furthermore, the number of the first clamping structures is 4 to 12;

[0015] The distance between adjacent first clamping structures is 0.5 mm to 3 mm.

[0016] Furthermore, a first abutting surface is provided on the claw hook portion;

[0017] The second clamping structure is provided with a second abutting surface;

[0018] When the claw hook portion is engaged with the second engaging structure, the first abutting surface and the second abutting surface are arranged opposite to each other and can contact and abut against each other in the separation direction of the separation bearing seat and the main rotating hub.

[0019] Furthermore, a first guiding inclined surface is provided on the claw hook portion at a position of the first abutting surface away from the main rotating hub;

[0020] When the main rotating hub and the release bearing seat are plugged into each other, the first guiding inclined surface can contact with the release bearing seat and undergo relative displacement to deform the first clamping structure.

[0021] Further, the width of the first abutting surface is 0.4 mm to 1.2 mm;

[0022] The main structure length of the first clamping structure is 5 mm to 20 mm;

[0023] The height of the first guiding slope is 2 mm to 5 mm;

[0024] The inclination angle of the first guiding slope is 20°~60°.

[0025] Furthermore, the separation bearing seat is provided with a middle hole for inserting one end of the main rotating hub;

[0026] The second clamping structure is arranged on the inner wall surface of the middle hole;

[0027] A second guiding slope is provided at one end of the middle hole for guiding the main hub to be inserted into the middle hole.

[0028] Furthermore, the preload force assembly is a compression spring assembly.

[0029] The present application also discloses a wet dual clutch device, comprising a dual clutch body and the connection structure;

[0030] The dual clutch body is assembled on the main rotating hub of the connecting structure by interference fit;

[0031] The release bearing seat of the connecting structure is clamped with the main rotating hub;

[0032] The preload force assembly of the connection structure is installed between the dual clutch body and the release bearing seat.

[0033] It can be seen from the above technical solutions that the connection structure designed in this application has the following beneficial effects:

[0034] 1. The separation bearing seat and the main rotating hub adopt a plug-in fit design, and when the plug-in fit is in place, at least one of the first and second clamping structures with elastic deformation can achieve a clamping fit, and can contact and abut against each other in the separation direction of the separation bearing seat and the main rotating hub to achieve locking; when disassembling, the clamping fit can be released by deforming the clamping structure with elastic deformation, and then the separation of the separation bearing seat and the main rotating hub is completed. This design can realize the rapid installation and separation of the main rotating hub and the separation bearing seat, and reduce the installation and maintenance costs.

[0035] 2. The preload force component is used to ensure that the first clamping structure and the second clamping structure always maintain contact and resistance with a certain force in the separation direction, thereby improving the stability of the installation and eliminating the assembly error in the separation direction, making the assembled structure more compact and saving installation space; at the same time, the force provided by the preload force component can accelerate the separation of the separation bearing seat and the main hub when the first clamping structure and the second clamping structure are released from the clamping fit, thereby further improving the efficiency of disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0037] Figure 1 A cross-sectional view of a wet dual clutch device provided in the present application;

[0038] Figure 2 A front view of a main rotating hub of a connection structure provided in the present application;

[0039] Figure 3 for Figure 1 A magnified schematic diagram of position A in FIG.

[0040] In the figure: 1. main hub; 11. first clamping structure; 111. main structure; 112. claw hook; 1121. first abutting surface; 1122. first guide slope; 2. release bearing seat; 21. second clamping structure; 211. second abutting surface; 22. middle hole; 221. second guide slope; 23. thickening structure; 3. preload assembly; 31. first compression spring; 32. second compression spring; 4. dual clutch body; 51. first operating element; 52. second operating element. DETAILED DESCRIPTION

[0041] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments in the embodiments of the present application are within the scope of protection of the embodiments of the present application.

[0042] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0043] In the description of the embodiments of the present 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 replaceable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0044] The embodiment of the present application discloses a connection structure.

[0045] See also Figure 1 , an embodiment of a connection structure provided in the embodiments of the present application includes:

[0046] Main hub 1, release bearing seat 2 (GSC base) and preload assembly 3.

[0047] The main rotating hub 1 is provided with a first clamping structure 11 ; the release bearing seat 2 can be plugged and matched with the main rotating hub 1 , and is provided with a second clamping structure 21 .

[0048] The first clamping structure 11 has elastic deformation and / or the second clamping structure 21 has elastic deformation.

[0049] The first clamping structure 11 and the second clamping structure 21 are clamped to each other when the separation bearing seat 2 is inserted and fitted into the main rotating hub 1 , and can contact and abut against each other in the separation direction of the separation bearing seat 2 and the main rotating hub 1 .

[0050] The pre-tightening force assembly 3 is used to provide a pre-tightening force for contacting and resisting the first clamping structure 11 and the second clamping structure 21 in the separation direction.

[0051] The connection structure designed in this application has the following beneficial effects:

[0052] 1. The separation bearing seat 2 and the main rotating hub 1 adopt the design concept of plug-in fit, which not only enables the two components to be tightly combined together, but also realizes a firm snap-fit ​​lock by cooperating with each other through at least one first snap-fit ​​structure 11 with elastic deformation and the second snap-fit ​​structure 21 after the plug-fit is fully in place. This locking method can effectively contact and resist each other in the separation direction of the separation bearing seat 2 and the main rotating hub 1, ensuring the stability of the lock. When disassembly is required, it is only necessary to deform the snap-fit ​​structure with elastic deformation to easily release the snap-fit, thereby successfully completing the separation of the separation bearing seat 2 and the main rotating hub 1. This design not only improves the efficiency of installation and separation of the main rotating hub 1 and the separation bearing seat 2, but also significantly reduces the cost of installation and maintenance.

[0053] 2. By using the preload component 3, it is ensured that the first clamping structure 11 and the second clamping structure 21 always maintain contact with each other with a certain preload in the separation direction. The application of this preload not only enhances the stability of the installation, but also effectively eliminates the assembly error in the separation direction, making the overall structure after assembly more compact, thereby saving valuable installation space. In addition, the force provided by the preload component 3 can accelerate the separation of the separation bearing seat 2 and the main hub 1 after the first clamping structure 11 and the second clamping structure 21 are released from the clamping fit, significantly improving the efficiency of disassembly and making the entire disassembly process faster and more convenient.

[0054] The above is an embodiment of a connection structure provided in the embodiment of the present application. The following is an embodiment of a connection structure provided in the embodiment of the present application. For details, please refer to Figures 1 to 3 .

[0055] Based on the solution of the above embodiment 1:

[0056] Furthermore, if Figure 2 As shown, the first clamping structure 11 is an elastic clamping claw structure, and a claw hook portion 112 is provided at one end thereof away from the main rotating hub 1 ; the second clamping structure 21 is a clamping groove structure or a step structure, which is clamped and matched with the claw hook portion 112 .

[0057] Alternatively, the second clamping structure 21 is an elastic claw structure, and a claw hook portion 112 is provided at one end thereof away from the release bearing seat 2; the first clamping structure 11 is a slot structure or a step structure. Alternatively, both the first clamping structure 11 and the second clamping structure 21 are elastic claw structures.

[0058] The first clamping structure 11 is preferably designed to be an elastic clamping claw structure, and the second clamping structure 21 is a clamping slot structure or a step structure; the combination of the clamping claw structure and the clamping slot structure or the step structure is not only simple in structure and easy to manufacture, but also firmly clamped and not easy to fall off. Compared with the clamping slot structure design, the step structure is more convenient in releasing the clamping fit, and the step structure is preferably used.

[0059] Furthermore, if Figure 2 As shown, there are at least two first clamping structures 11, which are spaced apart around the central axis of the main rotating hub 1. This design can ensure that the connection between the main rotating hub 1 and the release bearing seat 2 is more uniform and stable, and can maintain a good connection state even when subjected to large torque or vibration, and is not prone to loosening or falling off. The provision of multiple first clamping structures 11 can also disperse the stress during clamping and extend the service life of the connection structure.

[0060] Furthermore, if Figure 2 As shown, the first clamping structure 11 is integrally formed with the main rotating hub 1. This integrally formed design not only simplifies the assembly process and reduces the production cost, but also improves the overall structural strength, making the connection between the first clamping structure 11 and the main rotating hub 1 more firm and reliable. The integrally formed process also ensures the accuracy and consistency of the first clamping structure 11, thereby ensuring smooth clamping with the second clamping structure 21, further improving the reliability and stability of the connection structure.

[0061] The number of first clamping structures 11 is 4 to 12; the spacing III between adjacent first clamping structures 11 is 0.5 mm to 3 mm. This design of the number and the setting of the spacing not only ensures the connection strength, but also avoids the problem of assembly difficulties caused by too dense clamping structures and unstable connections caused by too sparse clamping structures. Through the reasonable design of the number and spacing, the connection structure has good assembly and economy while ensuring performance.

[0062] Furthermore, if Figure 3As shown, the claw hook portion 112 is provided with a first abutting surface 1121; the second clamping structure 21 is provided with a second abutting surface 211; when the claw hook portion 112 is clamped with the second clamping structure 21, the first abutting surface 1121 and the second abutting surface 211 are arranged opposite to each other and can contact and abut each other in the separation direction of the separation bearing seat 2 and the main rotating hub 1. This abutting surface design not only increases the contact area during clamping and improves the stability of the clamping, but also can provide a more uniform force in the separation direction, so that the clamping structure is more stable when subjected to force and is not easily deformed or damaged.

[0063] Furthermore, if Figure 3 As shown, a first guiding inclined surface 1122 is further provided on the claw hook portion 112 at a position away from the first abutting surface 1121 of the main rotating hub 1; when the main rotating hub 1 and the separation bearing seat 2 are plugged together, the first guiding inclined surface 1122 can contact and relatively displace with the separation bearing seat 2 to deform the first clamping structure 11.

[0064] The design of the first guide bevel 1122 greatly simplifies the installation process, making the insertion and matching of the main hub 1 and the release bearing seat 2 smoother. When the main hub 1 is inserted into the release bearing seat 2, the first guide bevel 1122 will contact the release bearing seat 2, and relative displacement will occur as the insertion goes deeper. This displacement will drive the first clamping structure 11 to undergo elastic deformation until the claw hook portion 112 smoothly slides into the position of the second clamping structure 21 and completes the clamping match. This design not only improves the convenience of installation, but also reduces the risk of jamming or damage that may occur during the installation process.

[0065] Furthermore, if Figure 3 As shown, the width I of the first abutting surface 1121 is 0.4 mm to 1.2 mm; Figure 2 As shown, the length II of the main structure 111 of the first clamping structure 11 is 5 mm to 20 mm; the height IV of the first guiding inclined surface 1122 is 2 mm to 5 mm; and the inclination angle V of the first guiding inclined surface 1122 is 20° to 60°.

[0066] The setting of these parameters not only ensures the strength of the snap-fit ​​structure, but also optimizes the shape of the snap-fit ​​structure, making the snap-fit ​​process smoother and the connection after snap-fit ​​more stable.

[0067] The width of the first abutting surface 1121 is reasonably designed, which not only ensures a sufficient contact area to withstand the load of 12000N axial force, but also avoids assembly difficulties caused by excessive width.

[0068] The main structure 111 of the first clamping structure 11 has a moderate length, which can ensure the stability of the clamping structure without increasing unnecessary material costs due to excessive length.

[0069] The design of the height and the inclination angle of the first guiding slope 1122 takes into account both the convenience of installation and the stability of the clamping structure, making the entire installation process fast and reliable.

[0070] The cross-sectional profile of the claw hook portion 112 parallel to the central axis of the main shaft can be a trapezoid. Under this design, the top surface and the part outside the main structure 111 of the first clamping structure 11 can form the required first abutting surface 1121; and the outer inclined surface can form the required first guiding inclined surface 1122.

[0071] Furthermore, if Figure 1 as well as Figure 3 As shown, the overall structure of the separation bearing seat 2 is an existing structural design, which is provided with a middle hole 22 for inserting one end of the main hub 1; taking this as an example, the second clamping structure 21 is arranged on the inner wall surface of the middle hole 22; taking the second clamping structure 21 as a step structure, a thickening structure 23 can be arranged on the inner wall surface of the middle hole 22, and one end of the thickening structure 23 extends to one end of the middle hole 22, and the other end can form a step structure with the inner wall surface of the middle hole 22 to serve as the second clamping structure 21; moreover, the other end surface of the thickening structure 23 also forms a second abutting surface 211.

[0072] like Figure 1 As shown, a second guiding bevel 221 is provided at one end of the middle hole 22 for guiding the main rotating hub 1 to be inserted into the middle hole 22. The design of the second guiding bevel 221 further improves the convenience of installation. When the main rotating hub 1 is close to the separation bearing seat 2, the second guiding bevel 221 will first contact the main rotating hub 1 and play a guiding role, so that the main rotating hub 1 can be smoothly inserted into the middle hole 22 along a predetermined trajectory. This design not only reduces the error during installation, but also improves the accuracy and efficiency of installation.

[0073] The preload force assembly 3 is a compression spring assembly. The application of the compression spring assembly is not only simple in structure and easy to install, but also can provide a stable and reliable preload force, thereby further enhancing the stability and reliability of the connection structure.

[0074] like Figure 1 As shown, the present application also discloses a wet dual clutch device, including a dual clutch body 4 and a connection structure.

[0075] The dual clutch body 4 is assembled on the main rotating hub 1 of the connecting structure by interference fit; the release bearing seat 2 of the connecting structure is clamped with the main rotating hub 1; the preload force assembly 3 of the connecting structure is installed between the dual clutch body 4 and the release bearing seat 2.

[0076] The preload force assembly 3 may specifically include a first compression spring 31 and a second compression spring 32; wherein the first compression spring 31 assembly is preloaded between the dual clutch body 4 and a first operating component connected to the release bearing seat 2, and the second compression spring 32 is preloaded between the dual clutch body 4 and a second operating component connected to the release bearing seat 2, and the details are not repeated here.

[0077] The assembly process of the wet dual clutch device designed in this application is as follows:

[0078] The dual clutch body 4 is pressed down, so that the main hub 1 overcomes the elastic force provided by the preload assembly 3 (the first compression spring 31 / the second compression spring 32) and the resistance to deformation of the first clamping structure 11 of the main hub 1, so that the claw hook portion 112 of the main hub 1 reaches the position of the second clamping structure 21 and achieves clamping cooperation with the second clamping structure 21, and then is axially clamped by using the preload force provided by the preload assembly 3.

[0079] The disassembly process of the wet dual clutch device designed in this application is as follows:

[0080] A sleeve is inserted into the middle hole 22 of the release bearing seat 2 and is clamped in the first guide slope 1122 of each claw hook portion 112, and then pressure is applied to the sleeve to squeeze the claw hook portion 112 through the sleeve to disengage from the second clamping structure 21. Due to the presence of the preload component 3, the preload force provided by the preload component 3 can assist the separation movement of the main hub 1 and the release bearing seat 2, thereby completing the disassembly of the dual clutch body 4.

[0081] It can be seen from the above assembly and disassembly process that the connection structure designed in the present application can very effectively improve the assembly and disassembly efficiency of the dual clutch body 4, has high operational feasibility, good economy, and has good application prospects.

[0082] The above is a detailed introduction to a connection structure and a wet dual clutch device provided by the present application. For a person skilled in the art, according to the idea of ​​the embodiments of the present application, there may be changes in the specific implementation method and the scope of application. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A connection structure, characterized in that: It comprises a main rotating hub (1), a separation bearing seat (2) and a preload component (3); The main rotating hub (1) is provided with a first clamping structure (11); The separation bearing seat (2) is capable of plugging and fitting with the main rotating hub (1), and is provided with a second clamping structure (21); The first clamping structure (11) has elastic deformation and / or the second clamping structure (21) has elastic deformation; The first clamping structure (11) and the second clamping structure (21) are mutually clamped when the separation bearing seat (2) is able to be plugged into and fit into place with the main rotating hub (1), and are able to contact and abut against each other in the separation direction of the separation bearing seat (2) and the main rotating hub (1); The pre-tightening force assembly (3) is used to provide a pre-tightening force for contacting and resisting the first clamping structure (11) and the second clamping structure (21) in a separation direction.

2. The connection structure according to claim 1, characterized in that: The first clamping structure (11) is an elastic clamping claw structure, and a claw hook portion (112) is provided at one end thereof away from the main rotating hub (1); The second clamping structure (21) is a clamping groove structure or a step structure, and is clamped and matched with the claw hook portion (112).

3. The connection structure according to claim 2, characterized in that: There are at least two first clamping structures (11), which are spaced apart and circumferentially distributed around the central axis of the main rotating hub (1).

4. The connection structure according to claim 3, characterized in that: The number of the first clamping structures (11) is 4 to 12; The distance between adjacent first clamping structures (11) is 0.5 mm to 3 mm.

5. The connection structure according to claim 3, characterized in that: The claw hook portion (112) is provided with a first abutting surface (1121); The second clamping structure (21) is provided with a second abutting surface (211); When the claw hook portion (112) is engaged with the second engaging structure (21), the first abutting surface (1121) and the second abutting surface (211) are arranged opposite to each other and are capable of contacting and abutting against each other in the separation direction of the separation bearing seat (2) and the main rotating hub (1).

6. The connection structure according to claim 5, characterized in that: A first guiding inclined surface (1122) is also provided on the claw hook portion (112) at a position of the first abutting surface (1121) away from the main rotating hub (1); When the main rotating hub (1) and the separation bearing seat (2) are plugged into each other, the first guiding inclined surface (1122) can contact the separation bearing seat (2) and undergo relative displacement to deform the first clamping structure (11).

7. The connection structure according to claim 6, characterized in that: The width of the first abutting surface (1121) is 0.4 mm to 1.2 mm; The main structure (111) of the first clamping structure (11) has a length of 5 mm to 20 mm; The height of the first guiding inclined surface (1122) is 2 mm to 5 mm; The inclination angle of the first guiding inclined surface (1122) is 20° to 60°.

8. The connection structure according to claim 1, characterized in that: The separation bearing seat (2) is provided with a central hole (22) for inserting one end of the main rotating hub (1); The second clamping structure (21) is arranged on the inner wall surface of the middle hole (22); One end of the central hole (22) is provided with a second guiding inclined surface (221) for guiding the main rotating hub (1) to be inserted into the central hole (22).

9. The connection structure according to claim 1, characterized in that: The preload force assembly (3) is a compression spring assembly.

10. A wet dual clutch device, characterized in that: It comprises a dual clutch body (4) and a connection structure as claimed in any one of claims 1 to 9; The dual clutch body (4) is assembled on the main rotating hub (1) of the connection structure by interference fit; The separation bearing seat (2) of the connection structure is snap-connected with the main rotating hub (1); The preload force assembly (3) of the connection structure is installed between the dual clutch body (4) and the release bearing seat (2).

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