Shock absorber support and shock absorber

Abstract

The utility model relates to the technical field of shock absorbers, and provides a supporting piece of a shock absorber and the shock absorber. The supporting piece comprises a supporting shell, an end cover assembled at the end of the supporting shell and a rubber bushing assembly assembled in a cavity of the supporting shell, first rubber parts protruding at intervals are formed at the first end of the rubber bushing assembly, and second rubber parts protruding at intervals are formed at the second end of the rubber bushing assembly. A first limiting groove opposite to the first rubber part is formed in the assembling face, facing the first end of the rubber bushing assembly, of the end cover, and a first anti-skid protrusion is arranged on the inner wall of the first limiting groove. The end of the first rubber part is clamped into the first limiting groove in an interference mode and tightly presses the first anti-skid protrusion in an interference mode. The first rubber part is clamped into the first limiting groove in an interference mode and tightly presses the first anti-skid protrusion in an interference mode, so that the first rubber part is effectively prevented from transversely moving relative to the first limiting groove, stable matching between the first rubber part and the first limiting groove is kept even under the condition that the shock absorber has a deflection angle, and the service life of the shock absorber is prolonged. And friction noise caused by mutual friction is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, in particular to a support member of a shock absorber and a shock absorber. Background Art

[0002] The support is installed at the end of the shock absorber and is used to connect the shock absorber to the vehicle body. It is responsible for supporting the stiffness of the suspension and attenuating the vibration transmitted to the vehicle body by the ground to improve driving comfort.

[0003] The support member includes a support shell, a rubber bushing assembly assembled in the support shell, and an end cap assembled at the end of the support shell. The end face of the rubber bushing of the rubber bushing assembly is designed to have a spaced protrusion structure, and the protrusion is interference fit with the end cap. During driving, the rubber bushing will deform to absorb vibration, so that the shock absorber can play a vibration reduction and buffering effect.

[0004] With the development of new energy electric vehicles, the requirements for noise during driving are getting higher and higher. At present, during the operation of the shock absorber, the support parts will make a lot of noise. According to the test, a large part of the noise of the support parts comes from:

[0005] During the operation of the shock absorber, there is not only axial movement but also lateral deflection. When the lateral deflection is large, the raised part of the rubber bushing moves laterally relative to the end cover, and a large friction noise is generated between the two.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the utility model, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In view of this, the utility model provides a support member and a shock absorber for a shock absorber, wherein a first limiting groove with a first anti-slip protrusion is arranged on an end cover, so that the first rubber part of the rubber bushing is interference fit into the first limiting groove and the first anti-slip protrusion is interference pressed, thereby effectively preventing the first rubber part from lateral movement relative to the first limiting groove, thereby achieving a stable fit between the first rubber part and the first limiting groove even when the shock absorber has a swing angle, thereby avoiding friction noise caused by mutual friction.

[0008] According to one aspect of the utility model, a support member of a shock absorber is provided, comprising a support shell, an end cover mounted on the end of the support shell, and a rubber bushing assembly mounted in the cavity of the support shell, wherein: a first rubber portion with a spaced protrusion is formed at the first end of the rubber bushing assembly, an assembly surface of the end cover facing the first end of the rubber bushing assembly is provided with a first limiting groove corresponding to the first rubber portion, and an inner wall of the first limiting groove is provided with a first anti-slip protrusion; the end of the first rubber portion is interference fit into the first limiting groove and interference presses the first anti-slip protrusion.

[0009] In some embodiments, the first anti-slip protrusion is located on the bottom wall of the first limiting groove, and the first anti-slip protrusion includes an anti-slip convex point and / or an anti-slip rib.

[0010] In some embodiments, a first groove ring is disposed on the peripheral wall of the first limiting groove, a first anti-slip rubber ring is embedded in the first groove ring, and the first anti-slip rubber ring is pressed against the end of the first rubber part by interference.

[0011] In some embodiments, a second groove ring is provided at a corner of the first limiting groove, and an end portion of the first rubber portion is interference fit into the second groove ring.

[0012] In some embodiments, the first limiting grooves include a plurality of first limiting grooves uniformly distributed on the assembly surface along the circumferential direction.

[0013] In some embodiments, the depth of the first limiting groove is no more than 20% of the thickness of the end cover.

[0014] In some embodiments, the second end of the rubber bushing assembly is formed with a second rubber portion with a spaced protrusion; a supporting shoulder is provided in the cavity of the supporting shell, and the supporting surface of the supporting shoulder facing the second end of the rubber bushing assembly is provided with a second limiting groove opposite to the second rubber portion, and the end of the second rubber portion is interference fit into the second limiting groove.

[0015] In some embodiments, a mounting groove is provided at the end of the support shell, an edge of the end cover is embedded in the mounting groove, and the end cover is fixed to the support shell by riveting.

[0016] According to another aspect of the utility model, a vibration absorber is provided, wherein the vibration absorber is provided with a support member as described in any of the above embodiments.

[0017] Compared with the prior art, the beneficial effects of the present invention include at least:

[0018] The utility model utilizes a first limiting groove with a first anti-slip protrusion arranged on the assembly surface of the end cover to limit the lateral movement of the protruding first rubber part of the rubber bushing assembly relative to the first limiting groove, thereby solving the problem of friction noise between the rubber bushing assembly and the end cover.

[0019] Among them, the end of the first rubber part is interference-engaged in the first limiting groove and interference-pressed on the first anti-slip protrusion, thereby effectively preventing the first rubber part from lateral movement relative to the first limiting groove, and achieving that even when the shock absorber has a swing angle, the end of the first rubber part and the first limiting groove maintain a stable fit through interference engagement and interference pressing, so that during the deformation process of the rubber bushing, the positional relationship between the end of the first rubber part and the first limiting groove remains stable, and the rest of the rubber bushing ideally does not contact the end cover, avoiding mutual friction and friction noise, thereby improving the working performance of the shock absorber and meeting the strict noise prevention requirements of new energy vehicles and other models.

[0020] It should be understood that the above general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present invention, and together with the specification, are used to explain the principles of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic structural diagram of a support member in an embodiment of the utility model is shown;

[0023] Figure 2 A schematic structural diagram of the end cover in an embodiment of the utility model is shown. DETAILED DESCRIPTION

[0024] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein. Instead, these embodiments are provided to make the present invention more comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art.

[0025] The accompanying drawings are only schematic illustrations of the present invention and are not necessarily drawn to scale. The same reference numerals in the drawings represent the same or similar structures, and thus their repeated description will be omitted.

[0026] The words "first", "second" and similar words used in the specific description do not indicate any order, quantity or importance, but are only used to distinguish different components. The term "plurality" means two or more, unless otherwise clearly and specifically defined. In addition, in the description of the present utility model, when it is said that a device is "connected" to another device, this includes not only the case of direct connection, but also the case of indirect connection through other elements.

[0027] In the absence of conflict, the embodiments of the present invention and features in different embodiments may be combined with each other.

[0028] Figure 1 The structure of the supporting member in the embodiment of the utility model is schematically shown. Figure 2 The structure of the end cover in the embodiment of the utility model is shown; Figure 1 and Figure 2 As shown, the support member for the shock absorber provided by the embodiment of the utility model includes:

[0029] A support housing 10, an end cap 20 mounted on the end of the support housing 10, and a rubber bushing assembly 30 mounted in the cavity of the support housing 10, wherein:

[0030] The first end of the rubber bushing assembly 30 is formed with a first rubber portion 321 with a spaced protrusion, and the assembly surface 200 of the end cover 20 facing the first end of the rubber bushing assembly 30 is provided with a first limiting groove 21 opposite to the first rubber portion 321, and the inner wall of the first limiting groove 21 is provided with a first anti-slip protrusion 21a;

[0031] The end of the first rubber portion 321 is interference fit into the first limiting groove 21 and interference presses the first anti-slip protrusion 21 a.

[0032] During the operation of the shock absorber, the rubber bushing assembly 30 in the support member is deformed to absorb vibration, so that the shock absorber can play a vibration reduction and buffering effect.

[0033] The utility model utilizes the first limiting groove 21 with the first anti-slip protrusion 21a provided on the assembly surface 200 of the end cover 20 to limit the lateral movement of the raised first rubber part 321 of the rubber bushing assembly 30 relative to the first limiting groove 21, thereby solving the problem of friction noise between the rubber bushing assembly 30 and the end cover 20 during the operation of the shock absorber.

[0034] Among them, the end of the first rubber part 321 is interference fit into the first limiting groove 21 and interference pressed against the first anti-slip protrusion 21a, thereby effectively preventing the first rubber part 321 from lateral movement relative to the first limiting groove 21, so that even when the shock absorber has a swing angle, the end of the first rubber part 321 and the first limiting groove 21 are kept stably matched by interference fit and interference pressing, so that during the deformation process of the rubber bushing, the positional relationship between the end of the first rubber part 321 and the first limiting groove 21 is kept stable, and the rest of the rubber bushing does not contact the end cover 20 under ideal circumstances, thereby avoiding mutual friction and friction noise, improving the working performance of the shock absorber, and meeting the strict noise prevention requirements of new energy vehicles and other models.

[0035] In addition, the end cover 20 is provided with the first limiting groove 21, which can also reduce the weight of the end cover 20 and reduce the cost of parts.

[0036] In some embodiments, the first anti-skid protrusion 21a is located on the bottom wall of the first limiting groove 21, and the first anti-skid protrusion 21a includes anti-skid convex points and / or anti-skid ribs. The specific shape of the anti-skid convex points / anti-skid ribs can be set as needed, for example, formed into a circular shape or a square shape. Through the anti-skid convex points / anti-skid ribs, on the basis of the first limiting groove 21 covering the end of the first rubber part 321, the end of the first rubber part 321 is further grasped to prevent the first rubber part 321 from moving laterally relative to the first limiting groove 21, thereby suppressing friction noise.

[0037] In some embodiments, a first groove ring (not specifically shown in the figure) is provided on the peripheral wall of the first limiting groove 21 , a first anti-slip rubber ring is embedded in the first groove ring, and the first anti-slip rubber ring is pressed against the end of the first rubber part 321 by interference.

[0038] The end cap 20 is usually made of aluminum alloy. The first limiting groove 21 and the first anti-skid protrusion 21a, the first groove ring and other structures formed therein are integrally formed with the end cap 20. By forming the first groove ring on the peripheral wall of the first limiting groove 21 and embedding the first anti-skid rubber ring in the first groove ring to be pressed against the end of the first rubber part 321 by interference, the anti-skid and limiting effects of the first limiting groove 21 on the end of the first rubber part 321 can be further enhanced, and friction noise can be suppressed.

[0039] In some embodiments, a second groove ring 21 b is disposed at a corner of the first limiting groove 21 , and an end of the first rubber portion 321 is interference fit into the second groove ring 21 b .

[0040] The second groove ring 21b is also integrally formed with the end cover 20. The second groove ring 21b allows the end of the first rubber portion 321 to be inserted with interference fit, thereby preventing the first rubber portion 321 from coming out of the first limiting groove 21 when the shock absorber has a large deflection angle, thereby suppressing the friction noise between the first rubber portion 321 and the first limiting groove 21.

[0041] In some embodiments, the first limiting grooves 21 include a plurality of first limiting grooves 21 uniformly distributed on the assembly surface 200 along the circumferential direction, and the plurality of first limiting grooves 21 are respectively aligned with the spaced raised first rubber portions 321 at the first end of the rubber bushing assembly 30 to achieve cooperation with each first rubber portion 321, thereby uniformly and stably suppressing the friction noise between the rubber bushing assembly 30 and the end cover 20 in the circumferential direction.

[0042] In some embodiments, the depth of the first limiting groove 21 is not greater than 20% of the thickness of the end cover 20. The depth design of the first limiting groove 21 can stably clamp and grasp the end of the first rubber part 321, while avoiding affecting the structural strength of the end cover 20 due to the addition of the first limiting groove 21.

[0043] In some embodiments, a second rubber portion 322 with a spaced protrusion is formed at the second end of the rubber bushing assembly 30; a supporting shoulder 100 is provided in the cavity of the supporting shell 10, and a supporting surface of the supporting shoulder 100 facing the second end of the rubber bushing assembly 30 is provided with a second limiting groove (not specifically shown in the figure) relative to the second rubber portion 322, and the end of the second rubber portion 322 is interference fit into the second limiting groove.

[0044] The cooperation between the end of the second rubber portion 322 and the second limiting groove can effectively limit the lateral movement of the second rubber portion 322 relative to the second limiting groove, thereby solving the problem of friction noise between the rubber bushing assembly 30 and the supporting shoulder 100 during the operation of the shock absorber.

[0045] Furthermore, similar to the first limiting groove 21, the second limiting groove may be provided with anti-slip protrusions, anti-slip rubber rings, embedded ring grooves and other structures that can increase the tightness of fit between the end of the second rubber part 322 and the second limiting groove. For details of these structures, please refer to the above description of the first limiting groove 21, which will not be repeated here.

[0046] In some embodiments, a mounting groove is provided at the end of the support shell 10 , the edge 220 of the end cover 20 is embedded in the mounting groove, and the end cover 20 is fixed to the support shell 10 by riveting.

[0047] The support shell 10 and the end cover 20 are usually made of aluminum alloy material, and are firmly connected by riveting.

[0048] When assembling the support member, the rubber bushing assembly 30 can be firstly pressed into the cavity of the support shell 10 by interference fit, and then the end cover 20 can be placed so that the first limiting groove 21 and the end of the first rubber part 321 are aligned with each other by interference fit, and finally the end cover 20 and the support shell 10 are fixedly connected by riveting.

[0049] An embodiment of the utility model further provides a shock absorber, which is equipped with a support member as described in any of the above embodiments.

[0050] The shock absorber is installed in the vehicle suspension system. The support member is a part of the shock absorber, which is used to connect the shock absorber and the vehicle body, and is responsible for attenuating the vibration transmitted from the ground to the vehicle body, improving driving comfort and handling. The shock absorber of the utility model is equipped with the above-mentioned support member, which can achieve the following beneficial effects:

[0051] The first limiting groove 21 provided on the end cover 20 is used to limit the lateral movement of the end of the first rubber part 321 of the rubber bushing assembly 30 relative to the first limiting groove 21, thereby solving the problem of friction noise between the rubber bushing assembly 30 and the end cover 20 during the operation of the shock absorber and improving the working performance of the shock absorber.

[0052] Furthermore, the second limit groove provided on the supporting shoulder 100 can be utilized to limit the lateral movement of the end of the second rubber portion 322 of the rubber bushing assembly 30 relative to the second limit groove, thereby solving the problem of friction noise between the rubber bushing assembly 30 and the supporting shoulder 100 during the operation of the shock absorber, and further improving the working performance of the shock absorber.

[0053] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A support member of a shock absorber, comprising a support housing, an end cover mounted at an end of the support housing, and a rubber bushing assembly mounted in a cavity of the support housing, characterized in that: The first end of the rubber bushing assembly is formed with a first rubber portion with a spaced protrusion, the assembly surface of the end cover facing the first end of the rubber bushing assembly is provided with a first limiting groove corresponding to the first rubber portion, and the inner wall of the first limiting groove is provided with a first anti-slip protrusion; The end of the first rubber portion is interference fit into the first limiting groove and interference presses the first anti-slip protrusion.

2. The support member according to claim 1, characterized in that The first anti-skid protrusion is located on the bottom wall of the first limiting groove, and the first anti-skid protrusion includes an anti-skid convex point and / or an anti-skid rib.

3. The support member according to claim 2, characterized in that A first groove ring is disposed on the peripheral wall of the first limiting groove, a first anti-slip rubber ring is embedded in the first groove ring, and the first anti-slip rubber ring is pressed tightly against the end of the first rubber part by interference.

4. The support member according to claim 1, characterized in that A second groove ring is provided at a corner of the first limiting groove, and an end portion of the first rubber portion is interference fit into the second groove ring.

5. The support member according to claim 1, characterized in that The first limiting grooves include a plurality of first limiting grooves uniformly distributed on the assembly surface along the circumferential direction.

6. The support member according to claim 1, characterized in that The depth of the first limiting groove is not greater than 20% of the thickness of the end cover.

7. The support member according to any one of claims 1 to 6, characterized in that: The second end of the rubber bushing assembly is formed with a second rubber portion with spaced protrusions; A supporting shoulder is arranged in the cavity of the supporting shell, and a supporting surface of the supporting shoulder facing the second end of the rubber bushing assembly is provided with a second limiting groove corresponding to the second rubber part, and the end of the second rubber part is interference fit into the second limiting groove.

8. The support member according to claim 1, characterized in that The end of the support shell is provided with a mounting groove, the edge of the end cover is embedded in the mounting groove, and the end cover is fixed to the support shell by riveting.

9. A shock absorber, characterized in that: The vibration absorber is provided with a support member as claimed in any one of claims 1 to 8.

Images