Damping washer
By setting multiple uneven protrusions on the impact surface of the shock absorber and using point contact instead of the whole-side contact, the problems of high noise and adhesion of the rubber flat washer are solved, and lower noise and higher service life are achieved.
Patent Information
- Application Number
- CN202421753394.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-07-23
AI Technical Summary
The existing rubber flat washers cannot effectively reduce the noise during collision of metal components in the shifting system, and are easily adhered to the metal surface.
A shock absorber is designed, with multiple uneven protrusions on the impact surface, and point contact is used instead of the entire surface contact. The protrusion height is inconsistent to adapt to different impact pressures, and noise is reduced through a progressive contact mechanism and avoid adhesion.
It effectively reduces noise, reduces contact area and stiffness, avoids adhesion, improves yield and service life, and reduces production costs.
Smart Images
Figure CN223063006U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shock absorption of a shift system SOWC, in particular to a shock absorption washer. Background Art
[0002] In the shift system selectable one-way clutch (SOWC), among which, Figure 1 As shown, the optional one-way clutch generally includes adjacent and contacting metal 1 200 and metal 2 300, and metal 2 300 can reciprocate along the axis direction under the action of spring and electromagnetic force. However, the reciprocating motion of metal 2 300 will cause repeated collision with metal 1 200, so a rubber flat washer is provided between metal 1 200 and metal 2 300 to separate the two metal parts to avoid direct collision between the two metal parts during operation.
[0003] However, although this rubber flat washer can prevent two metal parts from directly colliding, during the test, even if the metal part hits this rubber flat washer, it will generate noise of more than 75 decibels. Therefore, how to improve the shock absorption performance of this type of rubber shock absorption structure to meet the requirements is an urgent problem to be solved. Utility Model Content
[0004] In order to overcome the problems existing in the related art, the present disclosure provides a shock-absorbing washer.
[0005] According to a first aspect of an embodiment of the present disclosure, the present disclosure provides a shock-absorbing washer, comprising: a washer body, the washer body is annular, the washer body comprises an impact surface; wherein, a plurality of protrusions are arranged on the impact surface, and the heights of the plurality of protrusions are inconsistent.
[0006] In some embodiments, along the circumference of the gasket body, a plurality of the protrusions form at least one annular protrusion ring.
[0007] In some embodiments, the structures and sizes of the plurality of protrusions in the same protrusion circle are the same, and the plurality of protrusions are arranged at equal intervals along the circumference of the gasket body.
[0008] In some embodiments, the raised ring presents a wave structure along the circumference of the gasket body, and the wave crests of the wave structure form the protrusions.
[0009] In some embodiments, the heights of the plurality of protrusions in the same protrusion circle are inconsistent, and the heights of the plurality of protrusions are arranged in a staggered manner along the circumference of the gasket body.
[0010] In some embodiments, two rings of the raised rings are provided on the impact surface, which are divided into an outer ring raised part and an inner ring raised part in the radial direction. Among them, the heights of the outer ring raised parts are the same, the heights of the inner ring raised parts are the same, and the height of the outer ring raised part is greater than the height of the inner ring raised part.
[0011] In some embodiments, in the circumferential direction of the washer body, the raised parts of the outer ring raised part and the inner ring raised part are arranged alternately.
[0012] In some embodiments, the raised part is a hemisphere.
[0013] In some embodiments, the raised part is in the shape of a semi-cylinder, and the extending direction of the side wall of the raised part of the semi-cylinder is consistent with the circumferential direction of the washer body.
[0014] In some embodiments, the raised part is integrally formed with the washer body.
[0015] The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects: A plurality of uneven raised parts are provided on the impact surface of the washer body. The uneven raised parts make the contact mode between the impact surface and the metal surface a point contact. The point contact replaces the original whole-surface contact, thereby reducing the contact area and contact stiffness and reducing the noise. At the same time, the adhesion problem between the impact surface of the rubber washer and the metal surface in the related art is also avoided. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The accompanying drawings herein are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present disclosure and used together with the specification to explain the principles of the present disclosure.
[0017] Figure 1 is an axonometric view of two metal components and the rubber flat washer therebetween in the related art;
[0018] Figure 2 is a perspective view of a shock-absorbing washer shown according to an exemplary embodiment;
[0019] Figure 3 is a curve change comparison diagram of the shock-absorbing stiffness of the shock-absorbing flat washer in the related art and the shock-absorbing washer of the present disclosure when the impact pressure increases. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] Here, the exemplary embodiments will be described in detail, and the examples are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.
[0021] To solve the above technical problems, the present disclosure provides a shock-absorbing washer 100, as Figure 2 shown. The shock-absorbing washer 100 includes a washer body 10. The washer body 10 is annular. The washer body 10 includes an impact surface 20. Usually, one side of the washer body 10 is a flat plane for fitting with the surface of one of the metal components (such as metal one 200). The position of the washer body 10 and the metal one 200 is relatively fixed. And the other side of the washer body 10 is the impact surface 20. Another metal component (such as metal two 300) can reciprocate axially. The impact surface 20 is used to receive the repeated impact of the metal two 300.
[0022] Wherein, a plurality of protrusions 30 are arranged on the impact surface 20, so that the contact mode between the impact surface 20 and the metal surface is point contact. The point contact replaces the original whole-surface contact, thereby reducing the contact area and contact stiffness and reducing the noise.
[0023] As Figure 3 shown, Curve 1 is the curve of the compression distance of the shock-absorbing washer varying with the impact pressure, and Curve 2 is the curve of the compression distance of the shock-absorbing flat washer varying with the impact pressure. It can be Figure 3 seen that as the impact pressure increases, the compression distances of the shock-absorbing washer 100 of the present disclosure and the shock-absorbing flat washer in the related art are both increasing. However, at the same impact pressure, the compression distance of the shock-absorbing washer 100 of the present disclosure is significantly greater than that of the shock-absorbing flat washer. Therefore, more vibrations can be absorbed, so that at the same impact pressure, the shock-absorbing stiffness of the shock-absorbing washer 100 of the present disclosure is significantly less than that of the shock-absorbing flat washer, thereby reducing the noise of contact collision.
[0024] Furthermore, the heights of the plurality of protrusions 30 on the impact surface 20 are inconsistent, that is, the impact surface 20 of the washer body 10 is provided with a plurality of uneven protrusions 30. The uneven protrusions 30 can further reduce the contact area between the shock-absorbing washer 100 and the metal when the pressure is relatively small, and only gradually increase the contact area as the pressure increases.
[0025] In addition, since the protrusions 30 reduce the shock-absorbing stiffness and the contact area, the adhesion problem between the impact surface 20 of the shock-absorbing washer 100 and the metal surface is avoided.
[0026] The shock-absorbing washer 100 can be integrally formed by a demolding process using a rubber material. Therefore, the protrusions 30 and the washer body 10 are also integrally formed. In some embodiments, along the circumferential direction of the washer body 10, the plurality of protrusions 30 on the impact surface 20 of the washer body 10 can be irregularly and evenly distributed. At the same time, the shapes, structures, and sizes between the plurality of protrusions 30 can also be different, and no specific limitations are made here.
[0027] In this embodiment, along the circumferential direction W of the washer body 10, a plurality of protrusions 30 form at least one annular protrusion ring. The ring-shaped protrusions 30 can make the demolding process of the shock-absorbing washer 100 more convenient and smooth, effectively avoiding product scrapping caused by difficult demolding, significantly improving the yield rate, and reducing the production cost.
[0028] In some embodiments, along the radial direction of the washer body 10, multiple protrusion rings may be included, and the number of protrusion rings can be set according to the width of the washer body 10, so that the impact surface 20 of the washer body 10 is more evenly stressed under a relatively large impact pressure.
[0029] In this embodiment, as Figure 2 shown, two protrusion rings are provided on the impact surface 20 of the washer body 10, which are divided into an outer ring protrusion 40 and an inner ring protrusion 50 along the radial direction.
[0030] Among them, in this embodiment, the structures and sizes of the multiple protrusions 30 within the same protrusion ring may be the same, and along the circumferential direction W of the washer body 10, the multiple protrusions 30 are arranged at equal intervals. The ring-shaped protrusions 30 are evenly distributed at equal intervals in the circumferential direction W, ensuring that when the impact surface 20 of the washer body 10 receives repeated impacts from the metal two 300, these protrusions 30 can make the stress on the impact surface 20 more balanced in the circumferential direction W, reducing deformation, damage, or adhesion that may be caused by local stress concentration.
[0031] In addition, the multiple protrusions 30 arranged at equal intervals along the circumferential direction W are more evenly stressed during demolding, further increasing the smoothness of the demolding process, reducing the process complexity, improving the yield rate, and reducing the cost.
[0032] Furthermore, in this embodiment, the heights of the outer ring protrusions 40 are the same, and the heights of the inner ring protrusions 50 are also the same, but the height of the outer ring protrusions 40 is greater than the height of the inner ring protrusions 50. When the impact pressure applied by the metal two 300 is relatively mild, the outer ring protrusions 40 will first come into contact with the metal two 300 and play a buffering role. As the impact pressure gradually increases, the inner ring protrusions 50 begin to work together with the outer ring protrusions 40 and share the impact pressure from the metal two 300 with the outer ring protrusions 40. This progressive contact mechanism from the outside to the inside not only effectively reduces the contact area between the shock-absorbing washer 100 and the metal two 300 under low impact pressure, avoiding unnecessary energy loss, but also ensures that under high-pressure impacts, the shock-absorbing washer 100 can provide sufficient buffering effect, reducing vibration and impact contact noise.
[0033] In some other embodiments, according to actual application requirements, the height of the inner ring protrusions 50 can also be higher than the height of the outer ring protrusions 40, providing a flexible solution for shock-absorbing requirements in different scenarios.
[0034] In some embodiments, the protrusions 30 on the outer ring protrusion 40 and the inner ring protrusion 50 can be arranged side by side in the circumferential direction W. In this embodiment, on the circumferential direction W of the gasket body 10, the protrusions 30 of the outer ring protrusion 40 and the protrusions 30 of the inner ring protrusion 50 are arranged staggeredly. By the staggered arrangement, when the gasket body 10 bears the impact in the circumferential direction W, each protrusion 30 can share the force more evenly, avoiding structural deformation or damage that may be caused by local stress concentration, and significantly improving the durability and stability of the gasket.
[0035] In some other embodiments, the protrusion ring is in a wave structure along the circumferential direction W of the gasket body 10, and the wave crests of the wave structure form the protrusions 30. The protrusion ring with the wave structure can more effectively absorb and disperse the impact force. Through the alternation of the wave crests and wave troughs, multi-stage buffering of the impact pressure is achieved, significantly enhancing the shock absorption performance of the shock-absorbing gasket 100. In addition, the protrusion ring with the wave structure enables the shock-absorbing gasket 100 to disperse the impact pressure more evenly when bearing the circumferential W force, avoiding material fatigue or damage that may be caused by local pressure concentration, and extending the service life of the shock-absorbing gasket 100.
[0036] When the protrusion ring is in a wave structure, the wave crests of the outer ring protrusion 40 and the wave crests of the inner ring protrusion 50 can also be arranged staggeredly in the circumferential direction W, so that when the shock-absorbing gasket 100 bears a large impact force, the outer ring protrusion 40 and the inner ring protrusion 50 can disperse the impact force in the circumferential direction W.
[0037] In some other embodiments, the multiple protrusions 30 within the same protrusion ring are independent protrusions 30, and the heights of the multiple protrusions 30 are inconsistent. Specifically, along the circumferential direction W of the gasket body 10, the heights of the multiple protrusions 30 are arranged in a high-low staggered manner. For example, the outer ring protrusion 40 includes high protrusions and low protrusions arranged alternately along the circumferential direction W, and the inner ring protrusion 50 also includes high protrusions and low protrusions arranged alternately along the circumferential direction W, where the height of the high protrusion of the outer ring protrusion 40 can be the same as the height of the high protrusion of the inner ring protrusion 50, and the height of the low protrusion of the outer ring protrusion 40 can be the same as the height of the low protrusion of the inner ring protrusion 50.
[0038] When the impact pressure applied by the metal two 300 is relatively small, the high protrusions of the outer ring protrusion 40 and the inner ring protrusion 50 will first come into contact with the metal two 300 and undertake the initial buffering function. As the impact pressure gradually increases, the low protrusions of the outer ring protrusion 40 and the inner ring protrusion 50 begin to work together with the high protrusions and share the impact pressure from the metal two 300 with the high protrusions. The uniform dispersion of the impact pressure is achieved, reducing the risk of local overload, and ensuring the overall structural stability and reliability of the shock-absorbing gasket 100.
[0039] This hierarchical contact mechanism can adjust the number of protrusions 30 participating in buffering according to the magnitude of the impact pressure. It not only effectively reduces the contact area and contact stiffness between the shock-absorbing washer 100 and the second metal 300 under low impact pressure, avoiding unnecessary energy loss, but also ensures that the washer can provide sufficient buffering effect under high-pressure impact, reducing vibration and impact noise. At the same time, it effectively extends the service life of the shock-absorbing washer 100, as well as the first metal 200 and the second metal 300.
[0040] In an embodiment of the present disclosure, the protrusion 30 can be a hemisphere. The curved surface structure of the hemispherical protrusion 30 can form point contact or surface contact with the opposite metal surface, dynamically adjusting the contact area and contact stiffness according to the magnitude of the impact force, thereby ensuring the shock-absorbing effect, reducing contact noise, while reducing local stress concentration and extending the service life of the shock-absorbing washer 100.
[0041] In some embodiments, the protrusion 30 is in the shape of a semi-cylinder, and the extending direction of the side wall of the semi-cylindrical protrusion 30 is consistent with the circumferential direction W of the washer body 10. Such a semi-cylindrical protrusion 30 can provide more uniform support when the washer bears the circumferential force W, avoiding structural deformation caused by uneven local stress. In addition, the side wall design of the semi-cylinder can also guide the impact force to be distributed along the circumferential direction W, further enhancing the compressive capacity and stability of the washer.
[0042] Based on the same inventive concept, the present disclosure provides an optional one-way clutch, including the above-mentioned shock-absorbing washer 100. The specific manner of implementing the functions in the optional one-way clutch in the above embodiments has been described in detail in the embodiments related to the shock-absorbing washer 100, and will not be elaborated here.
[0043] It should be noted that the shock-absorbing washer of the present disclosure can be applied between the contact surfaces of any two metal components to eliminate the contact noise generated by the collision between the two metal components, and no specific limitation is made here.
[0044] It can be understood that "a plurality of" in the present disclosure means two or more, and other quantifiers are similar. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after. The singular forms of "a", "the", and "said" are also intended to include the plural forms, unless the context clearly indicates otherwise.
[0045] It can be further understood that the terms "first", "second", etc. are used to describe various structures, but these structures should not be limited to these terms. These terms are only used to distinguish structures of the same type from each other, and do not indicate a specific order or degree of importance. In fact, the expressions "first", "second", etc. can be used interchangeably. For example, without departing from the scope of the present disclosure, the first structure can also be referred to as the second structure, and similarly, the second structure can also be referred to as the first structure.
[0046] Those skilled in the art will readily conceive of other embodiments of the present disclosure after considering the specification and practicing the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include known common general knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and examples are only regarded as exemplary, and the true scope and spirit of the present disclosure are pointed out by the following claims.
[0047] It should be understood that the present disclosure is not limited to the exact structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.
Claims
1. A shock-absorbing washer (100), characterized in that, Comprising: A washer body (10), the washer body (10) being annular, and the washer body (10) including an impact surface (20); Wherein, a plurality of protrusions (30) are provided on the impact surface (20), and the heights of the plurality of protrusions (30) are not the same.
2. The shock-absorbing washer (100) according to claim 1, wherein Along the circumferential direction (W) of the washer body (10), the plurality of protrusions (30) form at least one annular protrusion ring.
3. The shock-absorbing washer (100) according to claim 2, wherein The structures and sizes of the plurality of protrusions (30) within the same protrusion ring are the same, and along the circumferential direction (W) of the washer body (10), the plurality of protrusions (30) are arranged at equal intervals.
4. The shock-absorbing washer (100) according to claim 2, wherein The protrusion ring has a wave structure along the circumferential direction (W) of the washer body (10), and the peaks of the wave structure form the protrusions (30).
5. The shock-absorbing washer (100) according to claim 2, wherein The heights of the plurality of protrusions (30) within the same protrusion ring are not the same, and along the circumferential direction (W) of the washer body (10), the heights of the plurality of protrusions (30) are arranged in a staggered manner of high and low.
6. The shock-absorbing washer (100) according to claim 2, wherein Two circles of the protrusion rings are provided on the impact surface (20), and are divided into an outer ring protrusion (40) and an inner ring protrusion (50) in the radial direction, Wherein, the heights of the outer ring protrusions (40) are the same, the heights of the inner ring protrusions (50) are the same, and the height of the outer ring protrusions (40) is greater than the height of the inner ring protrusions (50).
7. The shock-absorbing washer (100) according to claim 6, wherein On the circumferential direction (W) of the washer body (10), the protrusions (30) of the outer ring protrusions (40) and the protrusions (30) of the inner ring protrusions (50) are arranged in an alternating manner.
8. The shock-absorbing washer (100) according to claim 1, wherein The protrusion is a hemispherical body.
9. The shock-absorbing washer (100) according to claim 8, wherein The protrusion (30) is in the shape of a semi-cylinder, and the extending direction of the side wall of the semi-cylindrical protrusion (30) is the same as the circumferential direction (W) of the washer body (10).
10. The shock-absorbing washer (100) according to claim 1, wherein The protrusion (30) is integrally formed with the washer body (10).