One-way clutch device and vehicle
By combining a one-way clutch, a bushing, and an outer ring, the bearing is eliminated. The sliding fit between the annular protrusion and the inner ring, along with the bushing support, solves the problems of large space, heavy weight, and high cost of existing one-way clutches, achieving a lightweight, low-cost, and high-rigidity one-way clutch device.
Patent Information
- Application Number
- CN202520024796.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2035-01-06
AI Technical Summary
In the existing technology, one-way clutches with bearings have disadvantages such as large space occupation, large weight, low strength, low rigidity, inconvenient layout, and high cost.
The structure employs a combination of a one-way clutch, a bushing, and an outer ring. By sliding the annular protrusion and the small clearance hole of the inner ring, the bearing is eliminated. Combined with the support structure of the bushing and the inner ring, a support spanning the one-way clutch is formed, increasing overturning stiffness, and axial positioning is provided by an elastic element.
It reduces the space occupied by the one-way clutch device, lowers weight and cost, while improving strength and rigidity and simplifying the layout process.
Smart Images
Figure CN223469606U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to clutch technical field, especially relate to one -way clutch device and vehicle. BACKGROUND
[0002] The one-way clutch has the performance of realizing power transmission in one direction and interrupting power transmission in the opposite direction, and is widely used in the field of power transmission. The one-way clutch is installed between two counterparts, and the two counterparts can realize one-way transmission of power through the one-way clutch. The two counterparts and the one-way clutch can rotate relative to each other, and the one-way clutch alone cannot realize the installation positioning and radial support of the two counterparts, so a positioning structure needs to be added between the two counterparts. The positioning structure not only needs to realize the axial positioning between the two counterparts, but also must not interfere with the one-way clutch, and needs to be able to withstand radial force, axial overturning force, etc. and be able to rotate relative to each other in the power-off working condition. In the prior art, the positioning structure is usually a bearing, that is, a rear bearing and a one-way clutch are arranged between the two counterparts. However, the one-way clutch with a bearing has the disadvantages of large space occupation, large weight, low strength, small rigidity, inconvenient arrangement and high cost. SUMMARY
[0003] The utility model discloses to the one-way clutch with bearing in prior art has the technical problem of large space occupation, high cost, proposes a one-way clutch device and vehicle.
[0004] To solve the above problems, the utility model discloses an embodiment provides a one-way clutch device, including one -way clutch, shaft sleeve, inner ring piece and outer ring piece, the outer ring piece includes annular ring body and the annular protruding portion of connecting annular ring body and the central axis direction of extending towards annular ring body, the annular ring body is through the annular protruding portion and is rotated and is connected on the inner ring piece,
[0005] The one-way clutch and the shaft sleeve are connected on the inner ring piece, and the one-way clutch and the shaft sleeve away from the inner ring piece one end all with the inner wall of annular ring body abuts;The axis of the one-way clutch opposite two ends are respectively with the annular protruding portion and the shaft sleeve abuts.
[0006] Optionally, the one-way clutch device further includes an elastic member mounted on the inner side wall of the annular ring body, and the elastic member abuts against one end of the shaft sleeve away from the one-way clutch.
[0007] Optionally, the annular ring body is provided with a first inner hole and a second inner hole communicating with the first inner hole, and the inner diameter of the first inner hole is smaller than the inner diameter of the second inner hole.
[0008] The shaft sleeve is mounted in the first inner hole; and the elastic member is mounted in the second inner hole; and an end of the elastic member away from the shaft sleeve abuts against an inner wall of the second inner hole.
[0009] Optionally, the annular ring body is further provided with a third inner hole communicating with the first inner hole, the third inner hole is arranged on a side of the first inner hole away from the second inner hole, and the third inner hole is located between the first inner hole and the annular protrusion.
[0010] An inner diameter of the third inner hole is smaller than an inner diameter of the first inner hole; and the one-way clutch is mounted in the third inner hole.
[0011] Optionally, the elastic member is a circlip.
[0012] Optionally, a first oil groove is arranged between an inner side wall of the shaft sleeve and an outer side wall of the inner ring member.
[0013] Optionally, the first oil groove comprises a plurality of first annular inner teeth arranged on the inner side wall of the shaft sleeve.
[0014] Optionally, a second oil groove is arranged between an inner side wall of the annular protrusion and an outer side wall of the inner ring member.
[0015] Optionally, the second oil groove comprises a plurality of second annular inner teeth arranged on the inner side wall of the annular protrusion.
[0016] The utility model discloses another embodiment further provides a kind of vehicle, including above-mentioned one-way clutch device.
[0017] In the utility model, the outer ring member includes annular ring body and annular protrusion connected the annular ring body and extend towards the center axis direction of the annular ring body, the annular ring body is rotated and is connected on the inner ring member by the annular protrusion;The one-way clutch and the shaft sleeve are all connected on the inner ring member, and the one-way clutch and the shaft sleeve end away from the inner ring member are all with the inner wall of the annular ring body abut;The axial opposite ends of the one-way clutch are respectively with the annular protrusion and the shaft sleeve abut.The small clearance hole shaft sliding fit is formed between the annular protrusion and the inner ring member, and between the shaft sleeve and the inner ring member, so as not to set bearing and other components between the inner ring member and the outer ring member, reduce the occupied space of the one-way clutch device, and the one-way clutch device is light in weight, high in strength, large in rigidity, simple in arrangement and low in cost.In addition, the shaft sleeve is connected on the inner ring member, and the outer wall of the shaft sleeve abuts against the inner wall of the inner ring member, so that the combination of the shaft sleeve and outer ring member forms the support structure that spans the one-way clutch, increases the overturning rigidity of the one-way clutch device, improves the radial stress between the inner ring member and the outer ring member, and further reduces the size of the one-way clutch device. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0019] Figure 1 An axial cross-sectional view of a one-way clutch device is provided for one embodiment of the present utility model;
[0020] Figure 2 for Figure 1 Cross-sectional view along the AA axis.
[0021] The reference numerals in the specification are as follows:
[0022] 1. One-way clutch; 2. Bushing; 3. Inner ring; 4. Outer ring; 41. Annular ring body; 42. Annular protrusion; 43. First inner hole; 44. Second inner hole; 45. Third inner hole; 46. Second oil groove; 5. Elastic member. DETAILED DESCRIPTION
[0023] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0024] It should be understood that the terms "upper", "lower", "left", "right", "front", "back", "middle", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the utility model 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 a limitation of the utility model.
[0025] like Figure 1 and Figure 2 As shown, a one-way clutch device provided by an embodiment of the present invention includes a one-way clutch 1, a sleeve 2, an inner ring member 3 and an outer ring member 4; the outer ring member 4 includes an annular ring body 41 and an annular protrusion 42 connected to the annular ring body 41 and extending toward the center axis direction of the annular ring body 41, and the annular ring body 41 is rotatably sleeved on the inner ring member 3 through the annular protrusion 42; it can be understood that the annular protrusion 42 and the annular ring body 41 are an integrally formed part; the annular protrusion 42 can rotate on the inner ring member 3, and a small gap hole-shaft sliding fit is formed between the annular protrusion 42 and the inner ring member 3.
[0026] The one-way clutch 1 and sleeve 2 are both sleeved onto the inner ring member 3, and the ends of the one-way clutch 1 and sleeve 2 facing away from the inner ring member 3 abut against the inner wall of the annular ring body 41. The opposite ends of the axis of the one-way clutch 1 abut against the annular protrusion 42 and sleeve 2, respectively. It is understood that the sleeve 2 can rotate on the inner ring member 3, forming a small clearance hole-shaft sliding fit between the sleeve 2 and the inner ring member 3. The annular protrusion 42 and sleeve 2 can compress the one-way clutch 1 from both ends, thereby axially positioning the one-way clutch 1. The inner wall of the one-way clutch 1 abuts against the outer wall of the inner ring member 3, and the outer wall of the one-way clutch 1 abuts against the inner wall of the annular ring body 41, thereby radially positioning the one-way clutch 1 with the inner ring member 3 and the outer ring member 4.
[0027] In the present invention, the outer ring member 4 includes an annular ring body 41 and an annular protrusion 42 connected to the annular ring body 41 and extending toward the central axis of the annular ring body 41. The annular ring body 41 is rotatably sleeved onto the inner ring member 3 via the annular protrusion 42. The one-way clutch 1 and the sleeve 2 are both sleeved onto the inner ring member 3, and the ends of the one-way clutch 1 and the sleeve 2 facing away from the inner ring member 3 abut against the inner wall of the annular ring body 41. The axially opposite ends of the one-way clutch 1 abut against the annular protrusion 42 and the sleeve 2, respectively. A small clearance hole-shaft sliding fit is formed between the annular protrusion 42 and the inner ring member 3, and between the sleeve 2 and the inner ring member 3. This eliminates the need for components such as bearings between the inner ring member 3 and the outer ring member 4, reducing the space occupied by the one-way clutch device. Furthermore, the one-way clutch device is lightweight, strong, rigid, simple to deploy, and low in cost. In addition, the sleeve 2 is sleeved on the inner ring 3, and the outer wall of the sleeve 2 abuts against the inner wall of the inner ring 3, so that the combination of the sleeve 2 and the outer ring 4 forms a support structure across the one-way clutch 1, increasing the overturning stiffness of the one-way clutch 1 device, improving the radial force between the inner ring 3 and the outer ring 4, and further reducing the size of the one-way clutch device.
[0028] In one embodiment, if Figure 1 As shown, the one-way clutch device further includes an elastic member 5 mounted on the inner sidewall of the annular ring body 41. The elastic member 5 abuts against the end of the sleeve 2 facing away from the one-way clutch 1. It is understood that the elastic member 5 includes, but is not limited to, a retaining spring. The elastic member 5 can provide an axial elastic force to the sleeve 2, thereby axially pressing the sleeve 2 against the one-way clutch 1, further ensuring the stability of the annular protrusion 42 and the sleeve 2 in axially positioning the one-way clutch 1.
[0029] In one embodiment, if Figure 1 As shown, the annular ring body 41 is provided with a first inner hole 43 and a second inner hole 44 connected to the first inner hole 43 . The inner diameter of the first inner hole 43 is smaller than the inner diameter of the second inner hole 44 . It can be understood that the first inner hole 43 and the second inner hole 44 are coaxially arranged.
[0030] The shaft sleeve 2 is installed in the first inner hole 43 ; the elastic member 5 is installed in the second inner hole 44 ; one end of the elastic member 5 away from the shaft sleeve 2 abuts against the inner wall of the second inner hole 44 .
[0031] Specifically, the sleeve 2 can be installed in the first inner hole 43 from one end of the second inner hole 44, and then the elastic member 5 can be installed in the second inner hole 44, and finally the outer ring member 4 can be sleeved on the inner ring member 3; the assembly operation of the one-way clutch 1 is simple.
[0032] In one embodiment, if Figure 1 As shown, the annular ring body 41 further defines a third inner hole 45 that communicates with the first inner hole 43. The third inner hole 45 is located on the side of the first inner hole 43 away from the second inner hole 44 and between the first inner hole 43 and the annular protrusion 42. The inner diameter of the third inner hole 45 is smaller than that of the first inner hole 43. The one-way clutch 1 is mounted in the third inner hole 45. It is understood that the first inner hole 43, the second inner hole 44, and the third inner hole 45 are coaxially connected, and the opposite ends of the first inner hole 43 are connected to the second inner hole 44 and the third inner hole 45, respectively.
[0033] The assembly steps of the one-way clutch device are as follows: first, install the one-way clutch 1 in the third inner hole 45 from one end of the second inner hole 44, then install the sleeve 2 in the first inner hole 43 from one end of the second inner hole 44, then install the elastic member 5 in the second inner hole 44, and finally sleeve the outer ring member 4 on the inner ring member 3; the assembly operation of the one-way clutch 1 is simple.
[0034] In one embodiment, a first oil groove (not shown) is provided between the inner sidewall of the sleeve 2 and the outer sidewall of the inner ring 3. As can be understood, a small clearance hole-shaft sliding fit is formed between the outer walls of the sleeve 2 and the inner ring 3. The first oil groove is provided on the mating surface between the sleeve 2 and the inner ring 3. The lubricating oil in the first oil groove can reduce damage and energy loss during relative rotation between the sleeve 2 and the inner ring 3, thereby improving the reliability of the one-way clutch device.
[0035] In one embodiment, the first oil groove comprises a plurality of first annular internal teeth disposed on the inner wall of the sleeve 2. It can be understood that the first annular internal teeth are multiple first inner grooves disposed on the inner wall of the sleeve 2 and spaced apart. The outer wall of the inner ring 3 serves to seal the first annular internal teeth. In this embodiment, the first annular internal teeth can store a large amount of lubricating oil, further improving the lubrication between the sleeve 2 and the inner ring 3.
[0036] In an embodiment, the first oil groove is a first annular outer tooth (not shown in the figure) arranged on the outer wall of the inner ring member 3. It can be understood that the first annular outer tooth is a plurality of first outer grooves arranged on the outer wall of the inner ring member 3 at intervals; the inner wall of the shaft sleeve 2 can play a role in blocking the first annular outer tooth. In this embodiment, the first annular outer tooth can store more lubricating oil, further improving the lubricating effect between the shaft sleeve 2 and the inner ring member 3.
[0037] In an embodiment, as shown in Figure 1 and Figure 2 , the inner side wall of the annular protrusion 42 and the outer side wall of the inner ring member 3 are provided with a second oil groove 46. It can be understood that the annular protrusion 42 and the outer wall of the inner ring member 3 form a small gap hole shaft sliding fit, and the second oil groove 46 is arranged on the fitting surface between the annular protrusion 42 and the inner ring member 3. The lubricating oil in the second oil groove 46 can reduce damage and energy loss when the annular protrusion 42 and the inner ring member 3 rotate relative to each other, improving the reliability of the one-way clutch device.
[0038] In an embodiment, as shown in Figure 1 and Figure 2 , the second oil groove 46 includes a plurality of second annular inner teeth arranged on the inner side wall of the annular protrusion 42. It can be understood that the second annular inner teeth are a plurality of second inner grooves arranged on the inner wall of the annular protrusion 42 at intervals; the outer wall of the inner ring member 3 can play a role in blocking the second annular inner teeth. In this embodiment, the second annular inner teeth can store more lubricating oil, further improving the lubricating effect between the outer ring member 4 and the inner ring member 3.
[0039] In an embodiment, the second oil groove 46 is a second annular outer tooth (not shown in the figure) arranged on the outer wall of the inner ring member 3. It can be understood that the second annular outer tooth is a plurality of second outer grooves arranged on the outer wall of the inner ring member 3 at intervals; the annular protrusion 42 can play a role in blocking the second annular outer tooth. In this embodiment, the second annular outer tooth can store more lubricating oil, further improving the lubricating effect between the outer ring member 4 and the inner ring member 3.
[0040] The working principle of the one-way clutch device is: the power of the power device is transmitted to the inner ring member 3 through the outer ring member 4 and the one-way clutch 1, and the radial force generated by the power device due to its own weight, gear meshing force, belt force, etc. is borne by the fitting surface between the annular protrusion 42 and the inner ring member 3, and the fitting surface between the shaft sleeve 2 and the inner ring member 3.
[0041] When the power is interrupted and the one-way clutch 1 is not working, the outer ring member 4 will still rotate, at this time, the inner ring member 3 will slow down under the action of resistance, and the relative rotation between the inner ring member 3 and the outer ring member 4 will be formed.
[0042] The utility model discloses another embodiment still provides a kind of vehicle, including the one-way clutch device of above.
[0043] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.
Claims
1. A one-way clutch device characterized by comprising: The one-way clutch device comprises a one-way clutch, a shaft sleeve, an inner ring member and an outer ring member; the outer ring member comprises an annular ring body and an annular protrusion connected to the annular ring body and extending towards the central axis direction of the annular ring body, and the annular ring body is sleeved on the inner ring member through the annular protrusion; The one-way clutch and the shaft sleeve are both sleeved on the inner ring member, and the end of the one-way clutch and the shaft sleeve away from the inner ring member is in abutment with the inner wall of the annular ring body; the opposite ends of the axis of the one-way clutch are in abutment with the annular protrusion and the shaft sleeve respectively.
2. A one-way clutch device according to claim 1, characterized in that The one-way clutch device further comprises an elastic member installed on the inner side wall of the annular ring body, and the elastic member is in abutment with the end of the shaft sleeve away from the one-way clutch.
3. A one-way clutch device according to claim 2, wherein The annular ring body is provided with a first inner hole and a second inner hole communicating with the first inner hole, and the inner diameter of the first inner hole is smaller than that of the second inner hole; The shaft sleeve is installed in the first inner hole, and the elastic member is installed in the second inner hole; the end of the elastic member away from the shaft sleeve is in abutment with the inner wall of the second inner hole.
4. A one-way clutch device according to claim 3, wherein The annular ring body is further provided with a third inner hole communicating with the first inner hole, the third inner hole is arranged on the side of the first inner hole away from the second inner hole, and the third inner hole is located between the first inner hole and the annular protrusion; The inner diameter of the third inner hole is smaller than that of the first inner hole, and the one-way clutch is installed in the third inner hole.
5. The one-way clutch device of claim 2, wherein The elastic member is a circlip.
6. The one-way clutch device of claim 2, wherein A first oil groove is arranged between the inner side wall of the shaft sleeve and the outer side wall of the inner ring member.
7. A one-way clutch device according to claim 6, wherein The first oil groove comprises a plurality of first annular inner teeth arranged on the inner side wall of the shaft sleeve.
8. The one-way clutch device of claim 1, wherein A second oil groove is arranged between the inner side wall of the annular protrusion and the outer side wall of the inner ring member.
9. A one-way clutch device according to claim 8, wherein The second oil groove comprises a plurality of second annular inner teeth arranged on the inner side wall of the annular protrusion.
10. A vehicle characterized by comprising: The one-way clutch device comprises a one-way clutch device according to any one of claims 1 to 9.