Clutch release bearing assembly and bearing cover assembling structure and release shifting fork assembly
The inner and outer flower key mechanism with a pinned sleeve stabilizes the separation bearing seat, addressing wear issues and improving durability by preventing rotational movement in variable speed transmission devices.
Patent Information
- Application Number
- CN202422407171.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-30
AI Technical Summary
In the prior art, the slight rotation of the separation bearing seat during axial movement causes wear of the separation roller end face and the separation bearing seat end face, and the bushing and the separation bearing assembly rotate relative to each other causes wear, resulting in abnormal noise or stagnation failure.
The separation bearing seat and bearing cover are installed with inner splines and outer splines. The bushing and separation bearing seat are connected through pins to limit the rotation of the separation bearing seat and prevent the bushing from moving relative to each other.
It effectively reduces wear on the end face of the separation roller and the end face of the separation bearing seat, improves the performance and life of the parts, and prevents transitional wear of the bushing.
Smart Images
Figure CN223105087U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobiles, relates to a separating fork assembly, and particularly relates to an assembly structure of a clutch release bearing assembly and a bearing cover and a separating fork assembly. Background Art
[0002] Some existing transmission separating devices are provided with a separating fork with a separating roller. The separating roller is fixed on the fork through a pin shaft. The separating roller is used to position the clutch release bearing assembly. During the movement of the clutch release bearing assembly, it moves axially along the one-axis bearing cover. However, during the axial movement, the release bearing seat will slightly rotate and swing around its own axis. Due to the limitation of the separating roller, the slight rotation and swing of the release bearing seat will cause the end face of the separating roller to contact the end face of the release bearing seat, resulting in wear, abnormal noise or jamming failure. Moreover, after the clutch release bearing assembly is used for a long time, the bushing embedded in the clutch release bearing assembly will rotate relative to the clutch release bearing assembly, causing excessive wear of the bushing in the release bearing. Summary of the Utility Model
[0003] Aiming at the deficiencies existing in the prior art, the purpose of the utility model is to provide a clutch release bearing assembly, which can solve the technical problems of wear of the end face of the separating roller, the end face of the release bearing seat, and the inner bushing of the release bearing caused by the rotation and swing of the release bearing seat in the prior art.
[0004] In order to solve the above technical problems, the utility model is realized by adopting the following technical solutions:
[0005] An assembly structure of a clutch release bearing assembly and a bearing cover includes a clutch release bearing assembly sleeved on the first shaft of the gearbox, and a first-axis bearing cover capable of being cooperatively installed with the clutch release bearing assembly;
[0006] The clutch release bearing assembly includes a release bearing seat. An internal spline is provided on the inner wall of the front end of the release bearing seat. An installation end portion is provided at the rear end of the first-axis bearing cover. An external spline is provided on the outer wall of the installation end portion. The release bearing seat and the first-axis bearing cover are cooperatively installed through the internal spline and the external spline.
[0007] The utility model further has the following technical features:
[0008] Specifically, a bushing is coaxially sleeved in the release bearing seat. The outer wall of the bushing is attached to the inner wall of the release bearing seat. The release bearing seat and the bushing are connected by a pin.
[0009] Furthermore, a plurality of first pin mounting holes are circumferentially formed in the release bearing seat, and a plurality of second pin mounting holes are circumferentially formed in the bushing. The first pin mounting holes and the second pin mounting holes can be coaxially communicated, and the pins are inserted into the first pin mounting holes and the second pin mounting holes.
[0010] Furthermore, both the internal spline and the external spline are rectangular splines.
[0011] Furthermore, both the internal spline and the external spline are involute splines.
[0012] Furthermore, both the internal spline and the external spline are triangular splines.
[0013] Furthermore, the number of the first pin mounting holes is two, and the two first pin mounting holes are arranged in mirror symmetry.
[0014] The present utility model also protects a release fork assembly, which includes the above-mentioned clutch release bearing assembly and the bearing cover assembly structure, and further includes a release fork connected to the release bearing seat. The top end of the release fork is provided with two fork heads arranged in mirror symmetry, and a first release roller and a second release roller are oppositely arranged on the two fork heads.
[0015] Preferably, the distance between the inner side surface of the first release roller facing the release bearing seat and the inner side surface of the second release roller facing the release bearing seat is 1-1.5 mm larger than the distance between the two vertical surfaces of the release bearing seat.
[0016] Compared with the prior art, the present utility model has the following technical effects:
[0017] For the clutch release bearing assembly and the bearing cover assembly structure provided by the present utility model, the release bearing seat and the first shaft bearing cover are installed by means of the cooperation of the internal spline and the external spline. The rotation of the release bearing seat is restricted by the external spline, which can effectively reduce the wear of the end surface of the release roller and the end surface of the release bearing seat caused by the rotation and swing of the release bearing seat; the bushing and the release bearing seat are connected by pins, eliminating the relative rotation between the release bearing seat and the bushing and preventing radial rotation; through size design, it is ensured that no eccentric wear occurs when the working surface of the release bearing contacts or transmits force with the release roller, improving the service performance and service life of the components. Description of the Drawings
[0018] Figure 1 is the sectional view of the assembly and cooperation of the release bearing assembly and the first shaft bearing cover;
[0019] Figure 2 is the sectional view of the release bearing assembly of the present utility model;
[0020] Figure 3It is a schematic structural diagram of a one - shaft bearing cover of the present utility model;
[0021] Figure 4 It is a schematic structural diagram of the separating fork of the present utility model;
[0022] Figure 5 It is a top view of the separating fork assembly of the present utility model;
[0023] Figure 6 It is a sectional view of the separating fork assembly of the present utility model.
[0024] The meanings of the various labels in the figure are as follows:
[0025] 1 - separating bearing assembly, 2 - one - shaft bearing cover, 3 - pin, 4 - separating fork, 5 - first separating roller, 6 - second separating roller; 11 - separating bearing seat, 12 - bushing; 21 - mounting end; 111 - internal spline, 112 - vertical plane; 211 - external spline.
[0026] The following further elaborates on the specific content of the present utility model in conjunction with embodiments. Specific Embodiments
[0027] The following provides specific embodiments of the present utility model. It should be noted that the present utility model is not limited to the following specific embodiments, and any equivalent transformation based on the technical solution of this application falls within the protection scope of the present utility model.
[0028] The terms "upper", "lower", "front", "rear", "top", "bottom", etc. used in the present utility model to indicate the orientation or positional relationship are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "Inner" and "outer" refer to the inside and outside of the corresponding component contour, and the above - mentioned terms should not be construed as limitations on the present utility model.
[0029] In addition, ordinal numbers such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second" may explicitly or implicitly include one or more of such features.
[0030] In the present utility model, unless otherwise specified, terms such as "installation", "connection", "attachment", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral body; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0031] Unless otherwise specified, the components in the present utility model can be purchased from the market.
[0032] Embodiment 1
[0033] Complying with the above technical solution, as Figure 1 shown, this embodiment provides an assembly structure of a clutch release bearing assembly and a bearing cover, including a release bearing assembly 1 sleeved on the first shaft of the gearbox, and a first shaft bearing cover 2 that can be cooperatively installed with the release bearing assembly 1. The release bearing assembly 1 includes a release bearing seat 11, and an internal spline 111 is provided on the inner wall of the front end of the release bearing seat 11. As Figure 3 shown, an installation end 21 is provided at the rear end of the first shaft bearing cover 2, and an external spline 211 is provided on the outer wall of the installation end 21. The release bearing seat 11 and the first shaft bearing cover 2 are cooperatively installed through the internal spline 111 and the external spline 211. The rotation of the release bearing seat 11 is restricted by the external spline 211, which can effectively reduce the wear of the working end face of the release bearing seat 11 caused by the rotational swing of the release bearing seat 11. Ensure that the release bearing assembly 1 only moves back and forth axially along the first shaft bearing cover 2, and the first shaft bearing cover 2 plays a role of supporting, guiding and limiting the release bearing assembly 1.
[0034] As a preferred solution of this embodiment, as Figure 2 shown, a bushing 12 is coaxially sleeved inside the release bearing seat 11. The outer wall of the bushing 12 is attached to the inner wall of the release bearing seat 11, and the release bearing seat 11 and the bushing 12 are connected by a pin 3. In this embodiment, the bushing is a bushing made of PA66 + glass fiber material, the inner wall of the bushing 12 is flush, and the pin 3 is a pin made of nylon material.
[0035] As a preferred solution of this embodiment, a plurality of first pin mounting holes are circumferentially formed on the release bearing seat 11, and a plurality of second pin mounting holes are circumferentially formed on the bushing 12. The first pin mounting holes and the second pin mounting holes can be coaxially communicated. The pin 3 is inserted into the first pin mounting hole and the second pin mounting hole. After the pin 3 passes through the second pin mounting hole, the front end abuts against the first shaft bearing cover 2. With the help of the fixation of the pin 3, it can prevent the relative movement between the bushing 12 and the release bearing seat 11 after the release bearing assembly 1 moves for a long time, and further prevent the excessive wear of the bushing 12.
[0036] Preferably, external threads can be provided on the outer wall of the pin 3, and internal threads matching the external threads are provided in the first pin mounting hole and the second pin mounting hole to achieve threaded connection between the pin and the first pin mounting hole and the second pin mounting hole.
[0037] As a preferred solution of this embodiment, both the internal spline 111 and the external spline 211 are rectangular splines.
[0038] As a preferred solution of this embodiment, both the internal spline 111 and the external spline 211 are involute splines.
[0039] As a preferred solution of this embodiment, both the internal spline 111 and the external spline 211 are triangular splines.
[0040] As a preferred solution of this embodiment, the number of the first pin mounting holes is two, and the two first pin mounting holes are arranged in mirror symmetry.
[0041] In this embodiment, as Figure 6 shown, the length of the bushing 12 is a, the length of the external spline 211 is b, the separation stroke of the release bearing assembly 1 is e, and the wear stroke is f. Then preferably b≥a + e + f to ensure that the bushing 12 can be in full contact with the external spline of the first shaft bearing cover 2 throughout the life cycle of the clutch.
[0042] When the utility model is in use, the first shaft bearing cover 2 and the release bearing seat 11 are inserted and installed through the cooperation of the internal spline 111 and the external spline 211. The pin passes through the first pin mounting hole and the second pin mounting hole, and the front end abuts against the first shaft bearing cover 2.
[0043] Embodiment 2
[0044] This embodiment provides a release fork assembly. As Figure 5 shown, it includes the clutch release bearing assembly and bearing cover assembly structure provided in Embodiment 1, and further includes a release fork 4 connected to the release bearing seat 11. As Figure 4 shown, two fork heads 41 are arranged in mirror symmetry at the top of the release fork 4, and a first release roller 5 and a second release roller 6 are arranged oppositely on the two fork heads. The release bearing seat 11 is arranged between the first release roller 5 and the second release roller 6.
[0045] As a preferred solution of this embodiment, the distance between the end face of the first separation roller 5 facing the separation bearing seat 11 and the end face of the second separation roller 6 facing the separation bearing seat 11 is 1-1.5 mm larger than the distance between the two opposite vertical faces of the separation bearing seat 11. Under this dimensional condition, neither the first separation roller 5 nor the second separation gear 6 contacts the separation bearing seat 11, reducing the rolling resistance of the first separation roller 5 and the second separation gear 6, and there is no need to machine the vertical faces of the separation bearing, which can effectively reduce the processing cost.
[0046] The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.
[0047] In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, without conflict, they can be combined in any appropriate manner. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination manners.
[0048] In addition, any combination can be made between various different embodiments of the present disclosure, as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.
Claims
1. A clutch release bearing assembly and bearing cover assembly structure, comprising a release bearing assembly (1) sleeved on the first shaft of a gearbox, and a first shaft bearing cover (2) capable of being cooperatively installed with the release bearing assembly (1), characterized in that, The release bearing assembly (1) includes a release bearing housing (11). An internal spline (111) is provided on the inner wall at the front end of the release bearing housing (11). An installation end (21) is provided at the rear end of the first shaft bearing cover (2). An external spline (211) is provided on the outer wall of the installation end (21). The release bearing housing (11) and the first shaft bearing cover (2) are assembled and installed by the cooperation of the internal spline (111) and the external spline (211).
2. The assembly structure of the clutch release bearing assembly and the bearing cover according to claim 1, characterized in that A bushing (12) is coaxially sleeved in the release bearing housing (11). The outer wall of the bushing (12) is fitted with the inner wall of the release bearing housing (11). The release bearing housing (11) and the bushing (12) are connected by a pin (3).
3. The assembly structure of the clutch release bearing assembly and the bearing cover according to claim 2, characterized in that, A plurality of first pin mounting holes are circumferentially formed in the release bearing housing (11). A plurality of second pin mounting holes are circumferentially formed in the bushing (12). The first pin mounting holes and the second pin mounting holes can be coaxially communicated. The pin (3) is inserted into the first pin mounting holes and the second pin mounting holes.
4. The assembly structure of the clutch release bearing assembly and the bearing cover according to claim 1, characterized in that Both the internal spline (111) and the external spline (211) are straight splines.
5. The assembly structure of the clutch release bearing assembly and the bearing cover according to claim 1, characterized in that, Both the internal spline (111) and the external spline (211) are involute splines.
6. The assembly structure of the clutch release bearing assembly and the bearing cover according to claim 1, characterized in that, Both the internal spline (111) and the external spline (211) are triangular splines.
7. The assembly structure of the clutch release bearing assembly and the bearing cover according to claim 3, characterized in that, The number of the first pin mounting holes is two, and the two first pin mounting holes are arranged in mirror symmetry.
8. A separating shift fork assembly, characterized in that, It includes a clutch release bearing assembly and bearing cover assembly structure according to any one of claims 1 to 7, and further includes a release fork (4) connected to the release bearing housing (11). Two fork heads (41) are symmetrically arranged at the upper end of the release fork (4). A first release roller (5) and a second release roller (6) are arranged facing each other between the two fork heads.
9. The separating fork assembly according to claim 8, characterized in that, The distance between the inner side surface of the first release roller (5) facing the release bearing housing (11) and the inner side surface of the second release roller (6) facing the release bearing housing (11) is 1 to 1.5 mm larger than the distance between two opposite vertical surfaces (112) of the release bearing housing (11).