CN218718318U - Clutch release fork assembly and vehicle - Google Patents

Abstract

The utility model relates to a clutch release fork assembly and vehicle, including the release fork axle, bearing assembly, support and retaining ring, the release fork axle extends along first direction lengthwise, bearing assembly locates epaxial bearing of release fork and two spacers including overlapping respectively, two spacers support respectively in the bearing along the relative both ends on the first direction, the spacer is made by the metal, the support cover is located on the bearing, two retaining ring spacers are located on the release fork axle, and wear to locate two spacers respectively and follow the one end that the first direction kept away from each other, the retaining ring is made by engineering plastics, the release fork axle is connected with the support rotation with the help of the bearing, the release fork axle can rotate relative to the retaining ring, and the fit clearance between release fork axle and the retaining ring is less than the fit clearance between release fork axle and the spacer. The clutch release fork assembly is provided with the check ring made of engineering plastics to avoid friction between the spacer bush made of metal and the release fork shaft, so that the friction resistance of the release fork shaft relative to the spacer bush during rotation is reduced, and rotation clamping stagnation is avoided.

Description

Clutch release fork assembly and vehicle

Technical Field

The application relates to the technical field of vehicle clutches, in particular to a clutch release fork assembly and a vehicle.

Background

As an important part in a clutch for a vehicle, a release fork is fixedly fitted on a release fork shaft to be rotatably coupled with a fixed bracket by means of the release fork shaft, so that driving and driven parts of the clutch can be separated from each other, thereby interrupting power transmission. In order to enable the release fork and the release fork shaft to rotate smoothly together relative to the fixed support, the related art provides a clutch release fork assembly, the release fork assembly enables the release fork shaft to be rotatably connected with the fixed support through a bearing arranged on the release fork shaft, and a spacer sleeve fixed relative to the fixed support is arranged on the release fork shaft to provide a supporting function for the bearing.

However, the clutch release fork assembly in the related art has a problem that the clutch release fork shaft is easily stuck when rotating.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a clutch release fork assembly and a vehicle that reduce the rotation resistance of a release fork shaft, in order to solve the problem in the related art that the release fork shaft is prone to jamming when rotating.

According to one aspect of the present application, there is provided a clutch release fork assembly comprising:

a breakaway fork shaft extending lengthwise in a first direction;

the bearing assembly comprises a bearing and two spacer bushes, the bearing and the two spacer bushes are respectively sleeved on the separating fork shaft, the two spacer bushes are respectively supported at two opposite ends of the bearing along the first direction, and the spacer bushes are made of metal;

the bracket is sleeved on the bearing; and

the two check rings are sleeved on the separating fork shaft at intervals, penetrate through one ends of the two spacer sleeves far away from each other along the first direction respectively, and are made of engineering plastics;

the separation fork shaft is rotatably connected with the support through the bearing, the separation fork shaft is configured to be capable of rotating relative to the retainer ring, and a fit clearance between the separation fork shaft and the retainer ring is smaller than a fit clearance between the separation fork shaft and the spacer.

Above-mentioned clutch release fork assembly is through setting up the retaining ring between spacer and separation fork axle to avoid the spacer and the friction of separation fork axle that are made by the metal, and the retaining ring is made by engineering plastics, and frictional resistance when can reducing the relative spacer of separation fork axle and rotate avoids the separation fork axle to rotate the jamming.

In one embodiment, the clutch release fork assembly further comprises a release fork comprising two fork arms spaced from and disposed opposite each other along the first direction;

two opposite ends of the separation fork shaft along the first direction are respectively arranged in the two fork arms in a penetrating manner;

the retainer ring and the bearing assembly are both located between the two yoke arms.

In one embodiment, the clutch release fork assembly further includes two positioning members clamped on the release fork shaft at intervals along the first direction;

the two positioning pieces are respectively positioned on one side of the two fork arms which are far away from each other along the first direction, so that the two fork arms are limited between the two positioning pieces.

In one embodiment, along the first direction, each of the yoke arms is in clearance fit with the corresponding positioning element and the corresponding retainer ring, and along the first direction, each of the spacers is in clearance fit with the bearing and the corresponding retainer ring.

In one embodiment, the bearing comprises an outer ring fixedly arranged in the bracket in a penetrating way, and an inner ring arranged in the outer ring; the inner ring is sleeved on the separation fork shaft;

and a gasket is arranged between the outer ring and the inner ring, and the inner ring is rotationally connected with the outer ring by means of the gasket.

In one embodiment, the bearing further includes two sealing rings respectively disposed between the outer ring and the inner ring, and the two sealing rings are respectively located at two opposite sides of the gasket along the first direction;

the sealing ring is fixedly connected with the outer ring;

the inner race is configured to be rotatable relative to the seal ring.

In one embodiment, a first supporting part and a second supporting part are respectively arranged on one side of each spacer sleeve close to the bearing along the first direction;

the first supporting part and the second supporting part are arranged at intervals along the radial direction of the spacer bush and are arranged around the axis of the spacer bush; the first supporting part is supported on the outer ring, and the second supporting part is supported on the inner ring;

the spacer sleeve is followed first direction is close to one side of bearing still is equipped with deposits dirt groove, it encircles to deposit dirt groove the axis setting of spacer sleeve, just it is located same to deposit dirt groove the spacer sleeve first supporting part with between the second supporting part.

In one embodiment, each spacer is arranged in the bracket along the first direction close to the first end of the bearing in a penetrating manner, and a positioning part is convexly arranged on the peripheral wall of the first end of the spacer;

the bracket is provided with a positioning groove for accommodating the positioning part;

the positioning part is used for preventing the spacer bush from rotating relative to the bracket.

In one embodiment, a size of the positioning groove in the first direction is larger than a size of the positioning portion in the first direction.

According to another aspect of the present application, there is provided a vehicle including a clutch release fork assembly as described in any of the embodiments above.

Drawings

FIG. 1 is a partial cross-sectional view of a clutch release fork assembly according to an embodiment of the present application;

FIG. 2 is a schematic view of the assembly of the bearing assembly, retainer ring and split yoke of the embodiment of FIG. 1;

FIG. 3 is an exploded view of the clutch release fork assembly of the embodiment of FIG. 1;

FIG. 4 is a cross-sectional view of the spacer sleeve of the embodiment of FIG. 1;

fig. 5 is a schematic structural diagram of a spacer according to an embodiment of the present application.

Description of reference numerals:

100. a clutch release fork assembly; 10. separating the fork shaft; 11. a clamping groove; 20. a bearing assembly; 21. a bearing; 211. an outer ring; 212. an inner ring; 213. a liner; 214. a seal ring; 22. a spacer sleeve; 221. a first support section; 222. a second support portion; 223. a dust storage tank; 224. a positioning part; 30. a support; 31. positioning a groove; 40. a retainer ring; 50. a separation fork; 51. a yoke; 60. a positioning member; A. a first direction.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiment in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and therefore the application is not limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

FIG. 1 is a partial cross-sectional view of a clutch release fork assembly according to one embodiment of the present application; FIG. 2 is a schematic view of the assembly of the bearing assembly, retainer ring and split yoke of the embodiment of FIG. 1; FIG. 3 is an exploded view of the clutch release fork assembly of the embodiment shown in FIG. 1.

Referring to fig. 1-3, a clutch release fork assembly 100 provided in one embodiment of the present application includes a release fork shaft 10, a bearing assembly 20, a carrier 30, and two retaining rings 40.

The release fork 10 extends lengthwise along a first direction (i.e., a direction a in fig. 1), the bearing assembly 20 includes a bearing 21 and two spacers 22 respectively sleeved on the release fork 10, the two spacers 22 are respectively supported at two opposite ends of the bearing 21 along the first direction a, and the spacers 22 are made of metal. The support 30 is sleeved on the bearing 21, the two retainer rings 40 are sleeved on the separation fork shaft 10 at intervals, the two retainer rings 40 are respectively arranged at one ends, far away from each other, of the two retainer rings 22 in the first direction A in a penetrating mode, and the retainer rings 40 are made of engineering plastics. The split shaft 10 is rotatably connected to the bracket 30 by means of a bearing 21, the split shaft 10 is configured to be able to rotate relative to the retainer ring 40, and a fitting clearance between the split shaft 10 and the retainer ring 40 is smaller than a fitting clearance between the split shaft 10 and the spacer 22.

In the clutch release fork assembly 100, the bearing assembly 20 is disposed on the release fork shaft 10, and the bearing assembly 20 includes the bearing 21 disposed in the bracket 30, so that the release fork shaft 10 is rotatably connected to the bracket 30 by the bearing 21, thereby reducing the rotational friction between the release fork shaft 10 and the bracket 30 and improving the rotational accuracy. Through setting up two spacer 22 to make two spacer 22 support respectively in the both ends of bearing 21 along first direction A, and spacer 22 still provides the supporting role for wearing to locate the separation fork axle 10 in spacer 22. Also, the spacer 22 is made of metal so that the spacer 22 has high support strength. Through setting up two retaining rings 40 of wearing to locate in two spacer bushes 22 respectively, the separation fork 10 can rotate relative to retaining ring 40, and the fit clearance between separation fork 10 and the retaining ring 40 is less than the fit clearance between separation fork 10 and the spacer 22, in order to avoid separation fork 10 and the spacer 22 friction of being made by the metal at the relative support 30 pivoted in-process of separation fork 10, again because the frictional force between separation fork 10 and the retaining ring 40 of being made by plastics is less, thereby the frictional resistance that receives when making separation fork 10 rotate relative support 30 reduces, avoid separation fork 10 to rotate the jamming.

Optionally, the split yoke 10 is clearance fit with the spacer 22, the split yoke 10 is transition fit with the retainer ring 40 and the split yoke 10 is configured to be rotatable relative to the retainer ring 40.

In actual use, bracket 30 may be used in conjunction with a front housing of a transmission of a vehicle to mount clutch release fork assembly 100 to the vehicle.

In some embodiments, as shown in fig. 2, the bearing 21 includes an outer ring 211 fixedly disposed in the bracket 30, and an inner ring 212 disposed in the outer ring 211, wherein the inner ring 212 is disposed on the split shaft 10. A spacer 213 is arranged between the outer ring 211 and the inner ring 212, and the inner ring 212 is rotatably connected to the outer ring 211 by means of the spacer 213. In this way, by fixedly connecting the outer ring 211 with the bracket 30 and fixedly connecting the inner ring 212 with the release yoke 10, when the release yoke 10 moves relative to the bracket 30, the inner ring 212 moves relative to the outer ring 211 together with the release yoke 10, and due to the gasket 213 provided between the outer ring 211 and the inner ring 212, a lubrication effect is provided for the relative movement between the inner ring 212 and the outer ring 211.

Optionally, the material of the gasket 213 is a self-lubricating gasket material, such as a woven mesh of PTFE (Poly tetra fluoroethylene) to eliminate the need for lubrication when the bearing 21 is in use, thereby reducing maintenance and repair costs.

Specifically, the outer race 211 is interference-fitted with the holder 30, and the inner race 212 is interference-fitted with the release fork 10, so that the outer race 211 is prevented from rotating with respect to the holder 30, and the inner race 212 is prevented from rotating with respect to the release fork 10, so that only the inner race 212 moves with respect to the pad 213 during the rotation of the release fork 10 with respect to the holder 30, thereby reducing the resistance applied when the release fork 10 rotates, and preventing the release fork 10 from rotating unsmoothly with respect to the holder 30.

In some embodiments, as shown in fig. 2, the bearing 21 may be a knuckle bearing, an inner ring 212 of the knuckle bearing is slidably connected to an outer ring 211, sliding contact surfaces between the inner ring 212 and the outer ring 211 are an outer spherical surface and an inner spherical surface, respectively, and the inner ring 212 can rotationally swing at any angle when moving relative to the outer ring 211. It should be noted that, because the sliding contact surface between the inner ring 212 and the outer ring 211 of the joint bearing is a spherical surface, the joint bearing can perform centering motion within a certain angle range, and therefore, when there is a certain non-concentricity between the release yoke 10 and the bracket 30, the joint bearing can still work normally, so as to further avoid the occurrence of jamming when the release yoke 10 moves relative to the bracket 30.

In some embodiments, as shown in fig. 2, the bearing 21 further includes two sealing rings 214 respectively disposed between the outer ring 211 and the inner ring 212, the two sealing rings 214 are respectively located at two opposite sides of the gasket 213 along the first direction a, the sealing rings 214 are fixedly connected to the outer ring 211, and the inner ring 212 is configured to rotate relative to the sealing rings 214. In this way, by arranging the sealing rings 214 between the outer ring 211 and the inner ring 212, and respectively locating the two sealing rings 214 on two opposite sides of the material of the gasket 213 in the first direction a, the clamping failure of the bearing 21 caused by the impurities such as dust entering the contact surface between the inner ring 212 and the outer ring 211 is prevented, and the service life of the bearing 21 is prolonged. In addition, the sealing ring 214 is fixedly connected with the outer ring 211, so that the sealing ring 214 is prevented from shaking to influence the relative movement between the inner ring 212 and the outer ring 211, and the inner ring 212 can rotate relative to the sealing ring 214, so that the inner ring 212 can rotate relative to the outer ring 211.

Alternatively, the material of the sealing ring 214 may be rubber.

FIG. 4 is a cross-sectional view of the spacer sleeve of the embodiment of FIG. 1; fig. 5 is a schematic structural diagram of a spacer according to an embodiment of the present application.

In some embodiments, as shown in fig. 2 and fig. 4 to 5, each spacer 22 is provided with a first supporting portion 221 and a second supporting portion 222 along a side of the first direction a close to the bearing 21, the first supporting portion 221 and the second supporting portion 222 are spaced apart along a radial direction of the spacer 22 and are both arranged around an axis of the spacer 22, the first supporting portion 221 is supported by the outer ring 211, and the second supporting portion 222 is supported by the inner ring 212. The spacer 22 is further provided with a dust storage groove 223 along one side of the first direction a close to the bearing 21, the dust storage groove 223 is arranged around the axis of the spacer 22, and the dust storage groove 223 is located between the first supporting portion 221 and the second supporting portion 222 of the same spacer 22. In this way, by providing the first support part 221 and the second support part 222 to provide a supporting function for the outer ring 211 and the inner ring 212, respectively, and by providing the dust storage groove 223 between the first support part 221 and the second support part 222, impurities such as dust falling between the spacer 22 and the bearing 21 can be mostly accumulated in the dust storage groove 223, thereby reducing impurities entering the bearing 21 to further prevent dust and rust of the bearing 21.

Optionally, as shown in fig. 2, the first supporting portion 221 protrudes from the second supporting portion 222 along the first direction a to a side close to the bearing 21 along the first direction a, so that foreign matters such as dust from the outside are blocked by the first supporting portion 221, thereby further improving the sealing performance of the spacer 22 to the bearing 21.

It should be noted that, in the actual use process, the clutch release fork assembly 100 is disposed in the clutch cavity, and there is a lot of dust, therefore, in the above embodiment, the first supporting portion 221 is disposed to protrude from the second supporting portion 222 along the first direction a to a side close to the bearing 21 along the first direction a, and the dust storage groove 223 is disposed between the first supporting portion 221 and the second supporting portion 222, so as to seal the bearing 21 and prevent dust from entering the bearing 21.

It will be appreciated that since the spacer 22 is made of metal, the spacer 22 can provide a high support strength for the split yoke 10 and the bearing 21. Alternatively, the spacer 22 may be formed using a powder metallurgy process to increase the strength of the split yoke 10 and to allow for lower cost mass production of the spacer 22.

In order to prevent the spacers 22 from rotating relative to the bracket 30, in some embodiments, as shown in fig. 2, a first end of each spacer 22 close to the bearing 21 along the first direction a is inserted into the bracket 30, a positioning portion 224 (see fig. 5) is convexly provided on an outer peripheral wall of the first end of the spacer 22, a positioning groove 31 (see fig. 3) for accommodating the positioning portion 224 is provided on the bracket 30, and the positioning portion 224 is used for preventing the spacer 22 from rotating relative to the bracket 30. In this way, by providing the positioning portion 224 on the spacer 22 and providing the positioning groove 31 on the bracket 30 to position the spacer 22 relative to the bracket 30, the spacer 22 is prevented from rotating relative to the outer ring 211 of the bearing 21 during the operation of the clutch release fork assembly 100, which would affect the rotation accuracy of the release fork shaft 10.

Optionally, the dimension of the positioning slot 31 in the first direction a is larger than the dimension of the positioning portion 224 in the first direction a, so that each spacer 22 has a certain moving range in the first direction a relative to the bracket 30, and the spacer 22 can abut against the bearing 21 in the first direction a without being obstructed by the groove bottom of the positioning slot 31, thereby realizing the self-centering of the bearing 21 in the first direction a during the assembling process of the clutch release fork assembly 100. The groove bottom of the positioning groove 31 is a groove wall of the positioning groove 31 on one side close to the spacer 22 in the first direction.

To secure the bracket 30, in some embodiments, the bracket 30 is fixedly mounted to the vehicle via fasteners. Specifically, the bracket 30 is connected to the transmission front housing by fasteners.

In some embodiments, as shown in fig. 1, the clutch release fork assembly 100 further includes a release fork 50, the release fork 50 includes two fork arms 51 spaced apart from and disposed opposite to each other along the first direction a, opposite ends of the release fork shaft 10 in the first direction a respectively penetrate through the two fork arms 51, and the retainer ring 40 and the bearing assembly 20 are located between the two fork arms 51. In this way, by providing the release fork 50 for transmitting power, by providing the two yoke arms 51 of the release fork 50 to be respectively connected with the release fork shaft 10, the release fork 50 is rotatably connected with the bracket 30 by means of the release fork shaft 10, so that the release fork shaft 10 can be located at different positions to achieve power transmission or disconnection.

Specifically, as shown in fig. 1, in the first direction a, each retainer ring 40 is positioned between the corresponding yoke 51 and the spacer 22 such that the yoke 51 contacts the retainer ring 40 on a side thereof adjacent to the spacer 22 in the first direction a. In this way, the yoke 51 is prevented from contacting the spacer 22 made of metal on one side in the first direction a, resulting in excessive friction. Since the retainer ring 40 is made of engineering plastic, when the yoke 51 rotates relative to the bracket 30, the side of the yoke 51 close to the spacer 22 in the first direction a is lubricated by the retainer ring 40, so that the friction force is reduced.

It should be noted that, the release yoke 10, the yoke 51 and the shaft sleeve are all made of metal, and because the friction between the metal material and the metal material is large, the retaining ring 40 made of engineering plastics is arranged to prevent the release yoke 10 from contacting the spacer 22 and prevent the yoke 51 from contacting the spacer 22, so that the friction resistance applied when the release yoke 10 and the yoke 51 rotate relative to the bracket 30 is reduced, and the risk of rotation jamming is reduced.

Alternatively, the retainer ring 40 may be made of PPS (Polyphenylene sulfide) matrix.

In some embodiments, as shown in fig. 1 and 3, the clutch release fork assembly 100 further includes two positioning members 60 spaced apart from each other along the first direction a and disposed on the release fork shaft 10, and the two positioning members 60 are respectively disposed on the sides of the two fork arms 51 away from each other along the first direction a to position the two fork arms 51 between the two positioning members 60. In this way, by providing the positioning members 60 to provide positioning function to both sides of the release fork 50 in the first direction a, the yoke 51, the retainer ring 40, and the spacer 22 are prevented from shifting relative to the release fork 10 in the first direction a.

Alternatively, as shown in fig. 3, the positioning members 60 are configured in a ring shape, and the separation fork 10 is provided at opposite ends thereof in the first direction a with catching grooves 11 for partially receiving the corresponding positioning members 60, respectively, the catching grooves 11 being disposed around the axis of the separation fork 10.

In some embodiments, as shown in fig. 1-2, each yoke 51 is in clearance fit with the corresponding positioning member 60 and the corresponding retainer ring 40 along the first direction a, and each spacer 22 is in clearance fit with the bearing 21 and the corresponding retainer ring 40 along the first direction a. So, make yoke 51, retaining ring 40 and spacer 22 on the release yoke axle 10 all can have certain removal in first direction A to prevent that the resistance that release yoke 50 and release yoke axle 10 received on first direction A is too big, further be favorable to release yoke 50 and the nimble rotation of release yoke axle 10, avoid rotating the jamming, promote clutch release yoke assembly 100's performance stability.

Optionally, along the first direction a, the fit clearance between each yoke 51 and the corresponding positioning element 60 and the corresponding retainer ring 40 is 0 to 0.1mm, and along the first direction a, the fit clearance between each spacer 22 and the bearing 21 and the corresponding retainer ring 40 is 0 to 0.1mm.

Therefore, the clutch release fork assembly 100 provided by the application has the advantages of long service life, no maintenance, low friction and the like, and can prevent faults such as rotation clamping stagnation or resistance mutation and the like from occurring in the process that the release fork 50 and the release fork shaft 10 rotate together relative to the support 30, and the performance is stable.

According to another aspect of the present application, a vehicle is provided that includes a clutch release fork assembly 100 as described in any one of the embodiments above.

Specifically, the vehicle further includes a transmission, and the carrier 30 of the clutch release fork assembly 100 is connected with a front housing of the transmission. Alternatively, the clutch release fork assembly 100 may be applied to a manual transmission or an automatic transmission.

In one embodiment, the bearing 21 is a joint bearing, so that the bearing has the advantages of being free of lubrication and maintenance. For example, when the clutch release fork assembly 100 is applied to an automatic transmission, the clutch release fork assembly 100 is able to meet full life cycle performance requirements without degradation.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A clutch release fork assembly, comprising:

a breakaway fork shaft extending lengthwise in a first direction;

the bearing assembly comprises a bearing and two spacer bushes, the bearing and the two spacer bushes are respectively sleeved on the separating fork shaft, the two spacer bushes are respectively supported at two opposite ends of the bearing along the first direction, and the spacer bushes are made of metal;

the bracket is sleeved on the bearing; and

the two check rings are sleeved on the separating fork shaft at intervals, penetrate through one ends of the two spacer sleeves far away from each other along the first direction respectively, and are made of engineering plastics;

the separation fork shaft is rotatably connected with the support through the bearing, the separation fork shaft is configured to be capable of rotating relative to the retainer ring, and a fit clearance between the separation fork shaft and the retainer ring is smaller than a fit clearance between the separation fork shaft and the spacer.

2. The clutch release fork assembly of claim 1, further comprising a release fork including two fork arms spaced from and disposed opposite each other along the first direction;

two opposite ends of the separation fork shaft along the first direction are respectively arranged in the two fork arms in a penetrating manner;

the retainer ring and the bearing assembly are both located between the two yoke arms.

3. The clutch release fork assembly of claim 2, further comprising two positioning members spaced apart along the first direction and secured to the release fork shaft;

the two positioning pieces are respectively positioned on one side of the two fork arms which are far away from each other along the first direction, so that the two fork arms are limited between the two positioning pieces.

4. The clutch release fork assembly of claim 3, wherein each of the fork arms is in clearance fit with the corresponding positioning member and the corresponding retainer ring, respectively, in the first direction, and wherein each of the spacer sleeves is in clearance fit with the bearing and the corresponding retainer ring, respectively, in the first direction.

5. The clutch release fork assembly of claim 1, wherein the bearing comprises an outer race fixedly disposed within the cradle, and an inner race disposed within the outer race; the inner ring is sleeved on the separation fork shaft;

and a gasket is arranged between the outer ring and the inner ring, and the inner ring is rotationally connected with the outer ring by means of the gasket.

6. The clutch release fork assembly of claim 5, wherein the bearing further comprises two seal rings sealingly disposed between the outer race and the inner race, respectively, the two seal rings being disposed on opposite sides of the pad along the first direction;

the sealing ring is fixedly connected with the outer ring;

the inner race is configured to be rotatable relative to the seal ring.

7. The clutch release fork assembly of claim 5, wherein each spacer includes first and second support portions on a side of the spacer adjacent the bearing in the first direction;

the first supporting part and the second supporting part are arranged at intervals along the radial direction of the spacer bush and are arranged around the axis of the spacer bush; the first supporting part is supported on the outer ring, and the second supporting part is supported on the inner ring;

the spacer sleeve is followed first direction is close to one side of bearing still is equipped with deposits dirt groove, it encircles to deposit dirt groove the axis setting of spacer sleeve, just it is located same to deposit dirt groove the spacer sleeve first supporting part with between the second supporting part.

8. The clutch release fork assembly of claim 1, wherein each spacer is disposed through the bracket adjacent a first end of the bearing along the first direction, and a positioning portion is disposed on an outer peripheral wall of the first end of the spacer;

the bracket is provided with a positioning groove for accommodating the positioning part;

the positioning part is used for preventing the spacer bush from rotating relative to the bracket.

9. The clutch release fork assembly of claim 8, wherein the detent slot has a dimension in the first direction that is greater than a dimension of the detent portion in the first direction.

10. A vehicle comprising a clutch release fork assembly as claimed in any one of claims 1 to 9.

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