Connecting assembly for driving assembly, driving assembly and vehicle

Abstract

The utility model discloses a connecting assembly used for a driving assembly, the driving assembly and a vehicle, the connecting assembly comprises a connecting shaft, one end of the connecting shaft is connected with the driving assembly, and a connecting part is formed at the other end of the connecting shaft; the end, facing the driving assembly, of the driving shaft is arranged on the connecting part in a sleeving mode and is in power connection with the connecting shaft, and at least one first sealing piece is arranged between the inner wall of the driving shaft and the connecting part; and the connecting support is arranged on the driving assembly, a containing cavity penetrating in the axial direction is formed in the connecting support, at least part of the driving shaft is contained in the containing cavity, and at least one second sealing piece is arranged between the driving shaft and the inner wall of the containing cavity. According to the connecting assembly for the driving assembly, the sealing effect between the connecting shaft and the driving shaft can be improved through the connecting assembly, and the performance of the driving assembly is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and in particular to a connection component for a drive assembly, a drive assembly and a vehicle. Background Art

[0002] In the related technology, the sealing structure of the connecting shaft and the driving shaft is sealed with ordinary annular rubber sealing rings. The sealing effect of the annular rubber sealing ring is poor. When the driving shaft moves axially, the sealing ring is easily damaged. External dust, mud and water can easily enter the connection between the external spline of the connecting shaft and the internal spline of the driving shaft, affecting the performance of the entire driving shaft assembly and reducing its service life. When the vehicle is used for a long mileage, the connection between the external spline of the connecting shaft and the internal spline of the driving shaft is rusted, resulting in the inability to disassemble the drive shaft during after-sales maintenance of the vehicle, causing customer complaints and adversely affecting the brand image of the OEM. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present application is to provide a connection assembly for a drive assembly, which can improve the sealing effect between the connecting shaft and the drive shaft, thereby ensuring the performance of the drive assembly.

[0004] The present application also proposes a drive assembly having the above-mentioned connecting component.

[0005] The application also provides a vehicle having the above-mentioned drive assembly.

[0006] According to the embodiment of the present application, the connection component for the drive assembly includes: a connecting shaft, one end of which is connected to the drive assembly, and the other end of the connecting shaft is formed with a connecting portion; a drive shaft, one end of which is sleeved on the connecting portion toward the drive assembly and is dynamically connected to the connecting shaft, and at least one first seal is provided between the inner wall of the drive shaft and the connecting portion; a connecting bracket, which is provided on the drive assembly, and an accommodating cavity is formed on the connecting bracket and is penetrated in the axial direction, and at least a portion of the drive shaft is accommodated in the accommodating cavity, and at least one second seal is provided between the drive shaft and the inner wall of the accommodating cavity.

[0007] According to the connecting component for the drive assembly of the embodiment of the present application, the connecting component is provided with a connecting shaft, a driving shaft and a connecting bracket, at least a portion of the driving shaft is sleeved on the connecting shaft, a first sealing component is provided between the driving shaft and the connecting shaft, an accommodating cavity is formed on the connecting bracket, at least a portion of the driving shaft is accommodated in the accommodating cavity, and a second sealing component is provided between the driving shaft and the inner wall of the accommodating cavity. By providing the first sealing component and the second sealing component, the sealing effect of the connecting component can be improved, the service life of the connecting component can be increased, and the performance of the drive assembly can be improved.

[0008] In some embodiments of the present application, the inner wall of the accommodating cavity is formed with a radially extending mounting groove, and the second sealing member is received in the mounting groove and is sealingly connected to the outer peripheral wall of the driving shaft.

[0009] In some embodiments of the present application, the inner wall of the accommodating cavity is formed with a radially extending support portion, the support portion is formed with a support surface on the side axially away from the drive assembly, and the second seal is arranged on the support surface and is sealed and connected to the end of the drive shaft toward the drive assembly.

[0010] In some embodiments of the present application, the second sealing member is circumferentially disposed in the accommodating cavity.

[0011] In some embodiments of the present application, the connecting assembly further includes: a clip-on component, a first clip-on groove recessed inwardly formed on the connecting portion, a second clip-on groove extending radially formed at one end of the driving shaft, a portion of the clip-on component being received in the first clip-on groove, and another portion of the clip-on component being received in the second clip-on groove so as to be suitable for axially limiting the driving portion and the driving shaft.

[0012] In some embodiments of the present application, the connecting bracket includes: a bracket body, the bracket body is formed with a accommodating cavity arranged along the axial direction; a flange portion, the flange portion is arranged around the outer peripheral wall of the bracket body, and the flange portion is formed with a mounting hole that is detachably connected to the drive assembly.

[0013] In some embodiments of the present application, at least a portion of the connecting shaft is accommodated in the accommodating cavity, and the connecting bracket further includes: a bearing assembly, wherein the bearing assembly is supported between an inner wall of the accommodating cavity and an outer peripheral wall of the connecting shaft, and the bearing assembly is suitable for maintaining the position of the connecting shaft relative to the connecting bracket when the connecting shaft rotates relative to the connecting bracket.

[0014] In some embodiments of the present application, a dust cover extending in the circumferential direction is further provided on the outer peripheral wall of the driving shaft, and the dust cover is arranged opposite to the second sealing member in the axial direction.

[0015] The following briefly describes the drive assembly according to an embodiment of the present application.

[0016] According to the embodiment of the present application, the driving assembly is provided with the connecting component of the above-mentioned embodiment. Since the driving assembly of the embodiment of the present application is provided with the connecting component of the above-mentioned embodiment, the driving assembly performs double sealing through the first seal and the second seal to improve the sealing effect between the connecting shaft and the driving shaft, prevent external dust, mud and water from entering the connection between the inner spline of the driving shaft and the outer spline of the connecting part to affect the performance, improve the sealing effect of the connecting component, and ensure the overall performance of the driving assembly.

[0017] The following is a brief description of a vehicle according to an embodiment of the present application.

[0018] The vehicle according to the embodiment of the present application is provided with the drive assembly of the above-mentioned embodiment. Since the vehicle according to the embodiment of the present application is provided with the drive assembly of the above-mentioned embodiment, the vehicle can improve the sealing effect between the connecting shaft and the driving shaft, prevent external dust, mud and water from entering the connection between the inner spline of the driving shaft and the outer spline of the connecting part, solve the problem of rust at the connection between the inner spline of the driving shaft and the outer spline of the connecting part, improve the service life and facilitate maintenance, which greatly improves customer satisfaction.

[0019] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is an exploded schematic diagram of a connection assembly according to an embodiment of the present application;

[0022] Figure 2 yes Figure 1 A schematic cross-sectional view of the middle connecting shaft and the connecting bracket after they are matched;

[0023] Figure 3 yes Figure 1 A schematic cross-sectional view of a middle drive shaft;

[0024] Figure 4 yes Figure 1 A schematic cross-sectional view of a connecting component;

[0025] Figure 5 It is a schematic diagram of the structure of a drive assembly according to an embodiment of the present application.

[0026] Reference numerals:

[0027] 10. Connecting assembly; 11. Connecting shaft; 111. Connecting portion; 1111. First snap-fit ​​groove; 12. Driving shaft; 121. Dust cover; 122. Second snap-fit ​​groove; 13. Connecting bracket; 131. Bracket body; 1311. Accommodating cavity; 132. Flanged portion; 1321. Mounting hole; 133. Bearing assembly; 14. First sealing member; 15. Second sealing member; 16. Clip-fit ​​member; 20. Driving assembly. DETAILED DESCRIPTION

[0028] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0029] Reference below Figure 1-Figure 5 A connection component 10 for a drive assembly 20 according to an embodiment of the present application is described, wherein the connection component 10 includes a connecting shaft 11, a driving shaft 12, and a connecting bracket 13. One end of the connecting shaft 11 is connected to the driving assembly 20, and a connecting portion 111 is formed at the other end of the connecting shaft 11. One end of the driving shaft 12 facing the driving assembly 20 is sleeved on the connecting portion 111 and is dynamically connected to the connecting shaft 11. At least one first seal 14 is provided between an inner wall of the driving shaft 12 and the connecting portion 111. The connecting bracket 13 is provided on the driving assembly 20, and an accommodating cavity 1311 is formed on the connecting bracket 13 and is penetrated in an axial direction. At least a portion of the driving shaft 12 is accommodated in the accommodating cavity 1311, and at least one second seal 15 is provided between the driving shaft 12 and the inner wall of the accommodating cavity 1311.

[0030] At present, the sealing structure of the connecting shaft and the driving shaft is sealed by ordinary annular rubber sealing rings. The sealing effect of the annular rubber sealing ring is poor. When the driving shaft moves axially, it is easy to cause damage to the sealing ring. External dust, mud and water can easily enter the connection between the outer spline of the connecting shaft and the inner spline of the driving shaft, affecting the performance of the entire driving shaft assembly and reducing its service life.

[0031] like Figure 1 As shown, specifically, the connecting assembly 10 has a connecting shaft 11 and a driving shaft 12 extending in the axial direction, one end of the connecting shaft 11 can be connected to the driving assembly 20, and the other end of the connecting shaft 11 can be connected to the driving shaft 12, so that the driving assembly 20 can transmit power to the driving shaft 12 through the connecting shaft 11, wherein the other end of the connecting shaft 11 can be formed with a connecting portion 111, and the connecting portion 111 can be connected to the driving shaft 12 in power.

[0032] Furthermore, one end of the drive shaft 12 facing the drive assembly 20 can be used as a power input end, and one end of the drive shaft 12 can be sleeved on the outer periphery of the connecting portion 111, the inner wall of the drive shaft 12 can be formed with an inner spline, and the outer peripheral wall of the connecting portion 111 can be formed with an outer spline, and the drive shaft 12 and the connecting shaft 11 can be connected by splines, thereby realizing power transmission. Among them, a first seal 14 is arranged between the inner wall of the drive shaft 12 and the connecting portion 111, and the first seal 14 can be one or more. The first seal 14 can realize the sealing between the inner wall of the drive shaft 12 and the connecting portion 111, prevent external dust, muddy water, etc. from entering the connection between the inner spline of the drive shaft 12 and the outer spline of the connecting portion 111 to affect the performance, and improve the service life of the connecting assembly 10. In a specific embodiment of the present application, the first seal 14 can be constructed as a rubber seal ring.

[0033] like Figure 1 As shown, the connecting component 10 also includes a connecting bracket 13, and the connecting bracket 13 can be arranged on the driving assembly 20. The connecting bracket 13 can be detachably connected to the driving assembly 20 by snap-fitting, screwing, etc. Further, a receiving cavity 1311 is formed on the connecting bracket 13 and is arranged axially therethrough. At least a portion of the driving shaft 12 can be accommodated in the receiving cavity 1311, wherein a second seal 15 is also arranged between the driving shaft 12 and the inner wall of the receiving cavity 1311. The second seal 15 can be one or more, and the second seal 15 can achieve sealing between the driving shaft 12 and the connecting bracket 13. Double sealing can be achieved by arranging the first seal 14 and the second seal 15, thereby improving the sealing effect of the connecting component 10 and increasing the service life of the connecting component 10. In a specific embodiment of the present application, the second seal 15 can be constructed as an oil seal.

[0034] In short, the connecting component 10 for the drive assembly 20 of the present application is provided with a connecting shaft 11, a driving shaft 12 and a connecting bracket 13, at least a portion of the driving shaft 12 is sleeved on the connecting shaft 11, a first seal 14 is provided between the driving shaft 12 and the connecting shaft 11, a receiving cavity 1311 is formed on the connecting bracket 13, at least a portion of the driving shaft 12 is accommodated in the receiving cavity 1311, and a second seal 15 is provided between the driving shaft 12 and the inner wall of the receiving cavity 1311. By providing the first seal 14 and the second seal 15, the sealing effect of the connecting component 10 can be improved, the service life of the connecting component 10 can be increased, and the performance of the driving assembly 20 can be improved.

[0035] like Figure 2As shown, in some embodiments of the present application, the inner wall of the accommodating cavity 1311 may be formed with a radially extending installation groove, and the installation groove may be arranged around the inner wall of the accommodating cavity 1311 and recessed toward the inner wall of the accommodating cavity 1311, at least a portion of the second seal 15 may be accommodated in the installation groove, and the second seal 15 may be sealed and connected to the outer peripheral wall of the drive shaft 12, thereby achieving sealing between the drive shaft 12 and the connecting bracket 13, and by providing the installation groove, it is possible to avoid the installation of the second seal 15 affecting the installation of the drive shaft 12, thereby providing a certain space for the installation of the second seal 15, and in a specific embodiment of the present application, the second seal 15 may be constructed as an oil seal, the outer peripheral wall of the oil seal is sealed and connected to the inner wall of the installation groove, and the inner peripheral wall of the oil seal is sealed and connected to the outer peripheral wall of the connecting bracket 13.

[0036] In some embodiments of the present application, the inner wall of the accommodating cavity 1311 is formed with a support portion extending radially, and the support portion can be arranged around the inner wall of the accommodating cavity 1311 and extend toward the inner wall away from the accommodating cavity 1311, and the support portion is formed with a support surface on the side axially away from the drive assembly 20, and the second seal 15 can be arranged on the support surface, and the second seal 15 can be sealed and connected to the end of the drive shaft 12 toward the drive assembly 20. The second seal 15 can be limited by providing the support portion, one end of the second seal 15 is sealed and connected to the support surface, and the other end of the second seal 15 is sealed and connected to the end of the drive assembly 20, thereby realizing the sealing between the drive shaft 12 and the connecting bracket 13.

[0037] like Figure 1 As shown, in some embodiments of the present application, the connecting assembly 10 also includes a clamping portion, specifically, a first clamping groove 1111 recessed toward the inside is formed on the connecting portion 111, and a second clamping groove 122 extending radially is formed at one end of the driving shaft 12. A portion of the clamping member 16 is accommodated in the first clamping groove 1111, and another portion of the clamping member 16 is accommodated in the second clamping groove 122. The clamping portion can limit the driving portion and the driving shaft 12 in the axial direction, thereby preventing the first seal 14 from being worn due to the axial movement of the driving portion, thereby improving the service life of the connecting assembly 10.

[0038] like Figure 2As shown, in some embodiments of the present application, the connecting bracket 13 includes a bracket body 131 and a flange portion 132, and a receiving cavity 1311 is formed on the bracket body 131 and is arranged to penetrate along the axial direction. At least a portion of the drive shaft 12 can be accommodated in the receiving cavity 1311, and the flange portion 132 can be arranged around the outer peripheral wall of the bracket body 131, and a mounting hole 1321 detachably connected to the drive assembly 20 is formed on the flange portion 132. The mounting hole 1321 can be constructed in plurality, and the plurality of mounting holes 1321 can be circumferentially arranged on the flange portion 132, and the flange portion 132 and the drive assembly 20 can be connected by bolts.

[0039] like Figure 2 and Figure 4 As shown, in some embodiments of the present application, at least a portion of the connecting shaft 11 can be accommodated in the accommodating cavity 1311, and the connecting bracket 13 also includes a bearing assembly 133, and the bearing assembly 133 can be supported between the inner wall of the accommodating cavity 1311 and the outer peripheral wall of the connecting shaft 11, and the bearing assembly 133 can maintain the position of the connecting shaft 11 relative to the connecting bracket 13 when the connecting shaft 11 rotates relative to the connecting bracket 13.

[0040] like Figure 3 and Figure 4 As shown, in some embodiments of the present application, a dust cover 121 is further provided on the outer peripheral wall of the drive shaft 12. The dust cover 121 can be circumferentially arranged on the outer peripheral wall of the drive shaft 12, and the dust cover 121 and the second seal 15 are axially arranged opposite each other. At least a portion of the dust cover 121 can extend toward the connecting bracket 13. The dust cover 121 can play a dustproof and waterproof role, thereby preventing dust or water from directly entering between the drive shaft 12 and the connecting bracket 13.

[0041] The drive assembly 20 according to an embodiment of the present application is briefly described below.

[0042] According to the embodiment of the present application, the drive assembly 20 is provided with the connecting component 10 of the above-mentioned embodiment. Since the drive assembly 20 of the embodiment of the present application is provided with the connecting component 10 of the above-mentioned embodiment, the drive assembly 20 is doubly sealed by the first seal 14 and the second seal 15 to improve the sealing effect between the connecting shaft 11 and the driving shaft 12, prevent external dust, mud and water from entering the connection between the inner spline of the driving shaft 12 and the outer spline of the connecting part 111 to affect the performance, improve the sealing effect of the connecting component 10, and ensure the overall performance of the drive assembly 20.

[0043] The following is a brief description of a vehicle according to an embodiment of the present application.

[0044] The vehicle according to the embodiment of the present application is provided with the drive assembly 20 of the above-mentioned embodiment. Since the vehicle according to the embodiment of the present application is provided with the drive assembly 20 of the above-mentioned embodiment, the vehicle can improve the sealing effect between the connecting shaft 11 and the driving shaft 12, prevent external dust, mud and water from entering the connection between the inner spline of the driving shaft 12 and the outer spline of the connecting part 111, solve the problem of rust at the connection between the inner spline of the driving shaft 12 and the outer spline of the connecting part 111, improve the service life and facilitate maintenance, which greatly improves customer satisfaction.

[0045] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0046] In the description of this application, "first feature" or "second feature" may include one or more of the features.

[0047] In the description of the present application, “plurality” means two or more.

[0048] In the description of the present application, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0049] In the description of the present application, “above”, “over” and “above” a first feature to a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0050] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0051] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A connection assembly for a drive assembly, characterized in that: include: A connecting shaft, one end of which is connected to the driving assembly, and the other end of which is formed with a connecting portion; A driving shaft, one end of the driving shaft facing the driving assembly is sleeved on the connecting portion and is dynamically connected to the connecting shaft, and at least one first sealing member is provided between the inner wall of the driving shaft and the connecting portion; A connecting bracket is arranged on the driving assembly, and a receiving cavity is formed on the connecting bracket and is arranged to penetrate along the axial direction. At least a part of the driving shaft is accommodated in the receiving cavity, and at least one second sealing member is arranged between the driving shaft and the inner wall of the receiving cavity.

2. The connection assembly for a drive assembly according to claim 1, characterized in that: The inner wall of the accommodating cavity is formed with a mounting groove extending in the radial direction, and the second sealing member is received in the mounting groove and is sealingly connected to the outer peripheral wall of the driving shaft.

3. The connection assembly for a drive assembly according to claim 1, characterized in that: The inner wall of the accommodating cavity is formed with a radially extending support portion, and the support portion is formed with a support surface on a side axially away from the drive assembly. The second seal is arranged on the support surface and is sealed and connected to the end of the drive shaft facing the drive assembly.

4. The connection assembly for a drive assembly according to claim 2 or 3, characterized in that: The second sealing member is circumferentially arranged in the accommodating cavity.

5. The connection assembly for a drive assembly according to claim 1, characterized in that: Also includes: A clamping member, wherein a first clamping groove recessed inwardly is formed on the connecting portion, and a second clamping groove extending radially is formed at one end of the driving shaft, a portion of the clamping member is accommodated in the first clamping groove, and another portion of the clamping member is accommodated in the second clamping groove to limit the connecting portion and the driving shaft along the axial direction.

6. The connection assembly for a drive assembly according to claim 1, characterized in that: The connecting bracket comprises: A support body, wherein the support body is formed with a receiving cavity which is arranged to penetrate along the axial direction; A flange portion is disposed around the outer peripheral wall of the bracket body, and a mounting hole is formed on the flange portion and is detachably connected to the drive assembly.

7. The connection assembly for a drive assembly according to claim 6, characterized in that: At least a portion of the connecting shaft is accommodated in the accommodating cavity, and the connecting bracket further comprises: A bearing assembly is supported between the inner wall of the accommodating cavity and the outer peripheral wall of the connecting shaft, and the bearing assembly is suitable for maintaining the position of the connecting shaft relative to the connecting bracket when the connecting shaft rotates relative to the connecting bracket.

8. The connection assembly for a drive assembly according to claim 1, characterized in that: A dust cover extending in the circumferential direction is also arranged on the outer peripheral wall of the driving shaft, and the dust cover and the second sealing member are arranged opposite to each other in the axial direction.

9. A drive assembly, characterized in that: The invention comprises a connection component for a drive assembly as claimed in any one of claims 1 to 8.

10. A vehicle, characterized in that: Comprising the drive assembly as claimed in claim 9.

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