Clutch release bearing
By designing movable components and dust blocking parts in clutch separation bearings, the problems of dust entry and structural instability are solved, dust blocking and rolling stability are achieved, and the service life of the clutch is extended.
Patent Information
- Application Number
- CN202422758069.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-11-12
AI Technical Summary
Existing clutch separation bearings are prone to entering the outside world dust, and their structure is unstable, which affects service life and complex operation.
A movable assembly between the first and second gaskets is designed, combining a dust blocking member and a dust blocking brush made of soft material, adjusting the gap to block dust, and ensuring stable rolling of the rollers through a half-rail design, setting anti-collision bumps to improve stability.
Effectively block the entry of external dust, keep the bearing clean, improve service life, simple structure, convenient operation, stable roller rolling, and extend clutch service life.
Smart Images
Figure CN223178017U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of release bearings, in particular to a clutch release bearing. Background Technique
[0002] The clutch release bearing is mainly applied in the automotive field. It is installed between the clutch and the transmission. Through the action of the release bearing, the release lever can rotate and axially move along the clutch output shaft, thus ensuring that the clutch can be smoothly engaged, gently disengaged, reducing wear, and prolonging the service life of the clutch and the entire transmission system. In commercial vehicles, the clutch release bearing is equally important. It not only relates to the smooth start and shifting of the vehicle, but also involves the problem of preventing the transmission system from being overloaded.
[0003] There are various existing clutch release bearings. Since there will be a gap between the two gaskets of the release bearing, external dust is easy to enter the bearing interior from the gap. However, in common release bearings, there is generally no dust-proof structure, and the existing release bearings are unstable during rotation and have a complex structure. Summary of the Utility Model
[0004] Aiming at the deficiencies of the prior art, the utility model provides a clutch release bearing. This clutch release bearing can adjust the distance between the two gaskets, can block external dust from entering the bearing interior, has a dust-proof effect, and has a simple structure and convenient operation.
[0005] To achieve the above object, the utility model provides a clutch release bearing, including a first gasket and a second gasket. The first gasket and the second gasket are rotatably connected. A number of groups of movable components are arranged between the first gasket and the second gasket. Each group of movable components includes a first half-rail provided on one side wall of the first gasket facing the second gasket, and a second half-rail provided on one side wall of the second gasket facing the first gasket. The first half-rail and the second half-rail are combined to form a raceway for accommodating the rolling of rollers. A gap is formed between the first gasket and the second gasket, and a dust-proof member for blocking external dust is arranged in the gap.
[0006] The effects that can be produced by adopting the above technical solution are: By setting the first gasket and the second gasket to be rotatably matched, the installation is more convenient and the adjustment method is simple. By setting multiple groups of movable components, the movement of the first gasket and the second gasket is more convenient. And a dust-proof member is arranged at the gap position between the first gasket and the second gasket. The dust-proof member in this solution is used to block external dust from entering the bearing interior from the gap position, can effectively block the dust outside, improve the service life of the release bearing, and has a simple structure and is convenient to manufacture.
[0007] Further, the dust blocking member is a dust blocking brush, one end of the dust blocking brush is fixedly connected to the first gasket, and the other end is in contact with the end face of the second gasket facing the gap.
[0008] By providing a dust removal brush, it can prevent external dust from entering the bearing between the first gasket and the second gasket. The brush body in this solution is made of a soft material, which can be plastic or rubber, etc. It has a good dust blocking effect and can also keep the end face between the first gasket and the second gasket clean, making it easy to maintain.
[0009] Further, each of the first half - rails is a half - rail having a short - diameter end and a long - diameter end. The second half - rail is provided with a short - diameter end and a long - diameter end that are the same as those of the first half - rail. The short - diameter end of the first half - rail is arranged corresponding to the short - diameter end of the second half - rail, and the long - diameter end is arranged corresponding to the long - diameter end of the second half - rail. The radial length of the short - diameter end is less than the radial length of the long - diameter end. The radial lengths of both the short - diameter end and the long - diameter end are less than the radial length of the roller. The long - diameter ends of the first half - rails are all arranged in the clockwise direction corresponding to the short - diameter ends of the first half - rails, and the long - diameter ends of the second half - rails are all arranged in the clockwise direction corresponding to the short - diameter ends of the second half - rails.
[0010] By providing both the first half - rail and the second half - rail with long - diameter ends and short - diameter ends, in this solution, the end - head radius at the long - diameter end is greater than the end - head radius at the short - diameter end. When the roller rolls towards the short - diameter end, since the radius of the roller is greater than the radius of the short - diameter end, the distance between the first gasket and the second gasket will continuously increase as the roller rolls towards the short - diameter end, and then the first gasket and the second gasket will separate respectively. On the contrary, since the radius of the roller is greater than the long - diameter end and the long - diameter end radius is greater than the short - diameter end radius, when the roller rolls from the short - diameter end towards the long - diameter end direction, the distance between the first gasket and the second gasket will continuously decrease. When the roller reaches the long - diameter end position, there will still be a distance between the first gasket and the second gasket. In this solution, the maximum axial distance between the first gasket and the second gasket caused by the roller rolling is 1.6 mm, that is, when the roller is at the long - diameter end of the raceway, the bearing assembly height is 21 mm and the clutch is in the engaged state; when the roller is at the short - diameter end, the bearing assembly height is 22.6 mm and the clutch is pushed open and in the disengaged state. The structure is simple and the clutch adjustment is convenient.
[0011] Further, a number of anti - collision bumps are provided at both the long - diameter end and the short - diameter end.
[0012] By providing anti - collision bumps, when the roller of the bearing rotates to the end - head position, it can contact the raceway wall more gently, is not easy to damage the raceway / roller, and improves the service life.
[0013] Further, both the long - diameter end and the short - diameter end are ends having arc surfaces corresponding to the surface of the roller.
[0014] The end with an arc surface can better adapt to the surface shape of the roller. When the roller rolls to the end of the raceway, it is not easy to collide, and the structure is more stable. Brief Description of the Drawings
[0015] Figure 1 It is an exploded view of the partial structure of the embodiment of the present utility model;
[0016] Figure 2 It is a perspective view of the bearing structure when the clutch of the embodiment of the present utility model is disengaged;
[0017] Figure 3 It is a perspective view of the bearing structure when the clutch of the embodiment of the present utility model is engaged. Detailed Description of the Embodiment
[0018] An embodiment of a clutch release bearing of the present utility model is as Figures 1-3 shown, including a first gasket 1 and a second gasket 2. The first gasket 1 and the second gasket 2 are rotatably connected. A number of sets of movable components are arranged between the first gasket 1 and the second gasket 2. Each set of the movable components includes a first half-rail 3 arranged on one side wall of the first gasket 1 facing the second gasket 2 and a second half-rail 4 arranged on one side wall of the second gasket 2 facing the first gasket 1. The first half-rail 3 and the second half-rail 4 are combined to form a raceway for the roller 10 to roll. A gap 5 is formed between the first gasket 1 and the second gasket 2, and a dust-blocking member for blocking external dust is arranged in the gap 5.
[0019] By setting the first gasket 1 and the second gasket 2 to be rotatably matched, the installation is more convenient and the adjustment method is simple. By setting multiple sets of movable components, the movement of the first gasket 1 and the second gasket 2 is more convenient. And a dust-blocking member is arranged at the position of the gap 5 between the first gasket 1 and the second gasket 2. The dust-blocking member in this solution is used to block external dust from entering the bearing through the gap 5, which can effectively block the dust outside and improve the service life of the release bearing. The structure is simple and the manufacturing is convenient.
[0020] The dust-blocking member is a dust-blocking brush 6. One end of the dust-blocking brush 6 is fixedly connected to the first gasket 1, and the other end contacts the end surface of the second gasket 2 facing the gap 5. By setting the dust-removing brush, it can prevent external dust from entering the bearing between the first gasket 1 and the second gasket 2. The brush body in this solution is made of a soft material, which can be plastic or rubber, etc. The dust-blocking effect is good, and it can also keep the end surface between the first gasket 1 and the second gasket 2 clean and is easy to maintain.
[0021] Each of the first half-raceways 3 is a half-raceway having a minor-axis end 7 and a major-axis end 8. The second half-raceway 4 is provided with a minor-axis end 7 and a major-axis end 8 which are the same as those of the first half-raceway 3. The minor-axis end 7 of the first half-raceway 3 is arranged corresponding to the minor-axis end 7 of the second half-raceway 4, and the major-axis end 8 is arranged corresponding to the major-axis end 8 of the second half-raceway 4. The radial length of the minor-axis end 7 is less than that of the major-axis end 8, and the radial lengths of both the minor-axis end 7 and the major-axis end 8 are less than the radial length of the roller 10. The major-axis ends 8 of the first half-raceway 3 are all arranged in the clockwise direction corresponding to the minor-axis ends 7 of the first half-raceway 3, and the major-axis ends 8 of the second half-raceway 4 are all arranged in the clockwise direction corresponding to the minor-axis ends 7 of the second half-raceway 4. By providing both the first half-raceway 3 and the second half-raceway 4 with a major-axis end 8 and a minor-axis end 7, in this solution, the end radius at the major-axis end 8 is greater than the end radius at the minor-axis end 7. When the roller 10 rolls towards the minor-axis end 7, since the radius of the roller 10 is greater than that of the minor-axis end 7, the distance between the first gasket 1 and the second gasket 2 will continuously increase as the roller 10 rolls towards the minor-axis end 7, and thus the first gasket 1 and the second gasket 2 will be separated respectively. On the contrary, since the radius of the roller 10 is greater than that of the major-axis end 8 and the radius of the major-axis end 8 is greater than that of the minor-axis end 7, when the roller 10 rolls from the minor-axis end 7 towards the major-axis end 8, the distance between the first gasket 1 and the second gasket 2 will continuously decrease. When the roller 10 reaches the position of the major-axis end 8, there will still be a distance between the first gasket 1 and the second gasket 2. In this solution, when the roller 10 rolls, the maximum axial distance between the first gasket 1 and the second gasket 2 is 1.6 mm, that is, when the roller 10 is at the major-axis end 8 of the raceway, the bearing assembly height is 21 mm and the clutch is in the engaged state; when the roller 10 is at the minor-axis end 7, the bearing assembly height is 22.6 mm and the clutch is pushed open and the clutch is in the disengaged state. The structure is simple and the clutch adjustment is convenient.
[0022] A number of anti-collision bumps 9 are provided at both the major-axis end 8 and the minor-axis end 7. By providing the anti-collision bumps 9, the roller 10 of the bearing can contact the raceway wall more gently when rotating to the end position, is not easily damaged to the raceway / roller 10, and the service life is improved; both the major-axis end 8 and the minor-axis end 7 are ends having arc surfaces corresponding to the surface of the roller 10. By providing the ends with arc surfaces, the surface shape of the roller 10 can be better adapted, and the roller 10 is not easily collided when rolling to the end of the raceway, and the structure is more stable.
[0023] The above embodiments are only one of the preferred specific embodiments of the present invention, and the common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included in the protection scope of the present invention.
Claims
1. A clutch release bearing, comprising a first gasket and a second gasket, wherein the first gasket and the second gasket are rotatably connected, and characterized in that: A number of sets of movable components are arranged between the first gasket and the second gasket. Each set of the movable components includes a first half-rail provided on one side wall of the first gasket facing the second gasket, and a second half-rail provided on one side wall of the second gasket facing the first gasket. The first half-rail and the second half-rail are combined to form a raceway for accommodating the rolling of the roller. A gap is formed between the first gasket and the second gasket, and a dust blocking member for blocking external dust is arranged in the gap.
2. A clutch release bearing according to claim 1, wherein: The dust blocking member is a dust blocking brush. One end of the dust blocking brush is fixedly connected to the first gasket, and the other end contacts the end face of the second gasket facing the gap.
3. A clutch release bearing according to claim 1, characterized in that: Each of the first half-rails is a half-rail having a short-diameter end and a long-diameter end. The second half-rail is provided with a short-diameter end and a long-diameter end the same as those of the first half-rail. The short-diameter end of the first half-rail is arranged corresponding to the short-diameter end of the second half-rail, and the long-diameter end is arranged corresponding to the long-diameter end of the second half-rail. The radial length of the short-diameter end is smaller than that of the long-diameter end, and the radial lengths of both the short-diameter end and the long-diameter end are smaller than the radial length of the roller. The long-diameter ends of the first half-rails are all arranged in the clockwise direction corresponding to the short-diameter ends of the first half-rails, and the long-diameter ends of the second half-rails are all arranged in the clockwise direction corresponding to the short-diameter ends of the second half-rails.
4. A clutch release bearing according to claim 3, characterized in that: A number of anti-collision bumps are arranged on both the long-diameter end and the short-diameter end.
5. A clutch release bearing according to claim 3, characterized in that: Both the long-diameter end and the short-diameter end are ends having an arc surface corresponding to the surface of the roller.