Shock absorber support and shock absorber

Abstract

The utility model relates to the technical field of shock absorbers, and provides a supporting piece for a shock absorber and the shock absorber. The supporting piece for the shock absorber 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 protrusions and second rubber protrusions which are alternately distributed at intervals are formed at the first end, facing the end cover, of the rubber bushing assembly, the first rubber protrusions are higher than the second rubber protrusions, and the second rubber protrusions are higher than the first rubber protrusions. The end face of the second rubber protrusion is provided with a grid, and the grid is formed by arranging protruding ribs in a crossed mode. The second rubber protrusions lower than the first rubber protrusions are additionally arranged on the end face of the rubber bushing assembly, the grids formed by arranging the protruding ribs in the crossed mode are arranged on the end face of each second rubber protrusion, so that impact between the second rubber protrusions and the end cover is buffered through the grids, the contact area between the second rubber protrusions and the end cover is reduced, and the service life of the rubber bushing assembly is prolonged. Therefore, the impact noise is effectively reduced, and the working performance of the shock absorber is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, in particular to a support member for 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. Among them, the main component that provides the suspension stiffness characteristics is the rubber bushing assembly, and its stiffness determines the softness and hardness of the suspension.

[0004] With the development of new energy electric vehicles, the requirements for noise during driving are getting higher and higher. However, during the operation of the current shock absorber, the supporting parts will produce a lot of noise. One of the main reasons is:

[0005] In order to meet the rigidity requirements of the whole vehicle, the structural design of the end face of the rubber bushing assembly will have high and low rubber parts; during the operation of the shock absorber, the high convex rubber part can maintain contact with the end cover, and the low concave rubber part will hit and leave the end cover as the connecting rod passing through the rubber bushing assembly stretches and compresses, making impact noise. Especially under high-frequency vibration conditions, the rubber bushing assembly moves rapidly with the reciprocating motion of the connecting rod, and its low concave rubber part frequently hits the end cover, making a large impact noise, affecting the working performance of the shock absorber.

[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 for a shock absorber and a shock absorber, wherein a second rubber protrusion whose height is lower than the first rubber protrusion is added to the end surface of the rubber bushing assembly, and a grid formed by cross-arranged ribs is provided on the end surface of the second rubber protrusion, so as to cushion the impact between the second rubber protrusion and the end cover through the grid and reduce the contact area between the second rubber protrusion and the end cover, thereby effectively reducing the impact noise and improving the working performance of the shock absorber.

[0008] According to one aspect of the utility model, a support member for a shock absorber is provided, comprising a support shell, an end cover mounted at the end of the support shell, and a rubber bushing assembly mounted in the cavity of the support shell, wherein: a first end of the rubber bushing assembly facing the end cover is formed with a first rubber protrusion and a second rubber protrusion alternately distributed at intervals, the first rubber protrusion is higher than the second rubber protrusion, and the end surface of the second rubber protrusion is provided with a grid, and the grid is formed by cross-arranged ribs.

[0009] In some embodiments, in a natural state, the first rubber protrusion squeezes and contacts the end cover, and the second rubber protrusion is spaced from the end cover; as the rubber bushing assembly moves toward the end cover, the second rubber protrusion squeezes and contacts the end cover through the grid; as the rubber bushing assembly moves away from the end cover, the second rubber protrusion leaves the end cover.

[0010] In some embodiments, the distance between the top surface of the grid and the end surface of the second rubber protrusion is between 0.5 mm and 1 mm.

[0011] In some embodiments, an end surface of the second rubber protrusion corresponds to each cell of the grid to form a cavity.

[0012] In some embodiments, each cell of the grid is formed as a square cell, and the side length of the square cell is between 0.5 mm and 1 mm.

[0013] In some embodiments, each cell of the grid is formed as a circular cell, and a diameter of the circular cell is between 0.5 mm and 1 mm.

[0014] In some embodiments, the first rubber protrusion and the second rubber protrusion are both formed in a prism shape.

[0015] In some embodiments, a supporting shoulder is provided in the cavity of the supporting shell, and a third rubber protrusion and a fourth rubber protrusion that are alternately distributed are formed on the second end of the rubber bushing assembly facing the supporting shoulder, the third rubber protrusion is higher than the fourth rubber protrusion, and a grid is provided on the end surface of the fourth rubber protrusion, and the grid is formed by cross-arranged ribs.

[0016] According to another aspect of the utility model, a shock absorber is provided, wherein the shock absorber is provided with a support member for the shock absorber 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 designs the end face of the rubber bushing assembly to include first rubber protrusions and second rubber protrusions of different heights that are alternately distributed at intervals. The first rubber protrusion maintains contact with the end cover during the operation of the shock absorber, and the second rubber protrusion contacts and leaves the end cover in the extension stroke and compression stroke of the shock absorber respectively. The first rubber protrusion and the second rubber protrusion meet the suspension stiffness requirements, and deform to absorb vibrations to attenuate the vibrations transmitted to the vehicle body by the ground, thereby improving driving comfort.

[0019] The end surface of the second rubber protrusion is provided with a grid formed by cross-arranged ribs, so that the end surface of the second rubber protrusion forms a grid-like contact surface. During the operation of the shock absorber, when the second rubber protrusion hits the end cover, the grid can buffer the impact between the second rubber protrusion and the end cover, and reduce the contact area between the second rubber protrusion and the end cover, thereby effectively reducing the impact noise, improving the working performance of the shock absorber, and meeting the noise reduction requirements of new energy vehicles and other models.

[0020] The utility model reduces the impact noise under high-frequency vibration working conditions by changing the contact mode between the rubber bushing assembly and the end cover, which does not generate additional costs and can effectively solve the noise problem.

[0021] 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

[0022] 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.

[0023] Figure 1 A schematic diagram showing the structure of a support member for a shock absorber in an embodiment of the utility model;

[0024] Figure 2 A schematic structural diagram of a rubber bushing assembly in an embodiment of the utility model is shown. DETAILED DESCRIPTION

[0025] 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.

[0026] 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.

[0027] 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 orientation or positional relationship indicated by the terms "upper" and "lower" etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model. 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.

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in different embodiments may be combined with each other.

[0029] Figure 1 The structure of the support member for the shock absorber in the embodiment of the utility model is schematically shown. Figure 2 The structure of the rubber bushing assembly in the embodiment of the utility model is schematically shown; Figure 1 and Figure 2 As shown, the support member for the shock absorber includes:

[0030] 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:

[0031] The first end of the rubber bushing assembly 30 facing the end cover 20 is formed with a first rubber protrusion 321 and a second rubber protrusion 322 that are alternately distributed. The first rubber protrusion 321 is higher than the second rubber protrusion 322. The end surface of the second rubber protrusion 322 is provided with a grid 322a, and the grid 322a is formed by cross-arranged ribs 322b.

[0032] In a natural state, the first rubber protrusion 321 squeezes and contacts the end cover 20, and the second rubber protrusion 322 is spaced from the end cover 20; as the rubber bushing assembly 30 moves toward the end cover 20, the second rubber protrusion 322 squeezes and contacts the end cover 20 through the grid 322a; as the rubber bushing assembly 30 moves away from the end cover 20, the second rubber protrusion 322 leaves the end cover 20.

[0033] The utility model designs the end face of the rubber bushing assembly 30 to include first rubber protrusions 321 and second rubber protrusions 322 of different heights that are alternately distributed at intervals. The first rubber protrusions 321 maintain contact with the end cover 20 during the operation of the shock absorber, and the second rubber protrusions 322 contact and leave the end cover 20 in the extension stroke and compression stroke of the shock absorber, respectively. Through the first rubber protrusions 321 and the second rubber protrusions 322, the suspension stiffness requirements are met, and the deformation absorbs vibrations to attenuate the vibrations transmitted to the vehicle body by the ground, thereby improving driving comfort.

[0034] The end surface of the second rubber protrusion 322 is provided with a grid 322a formed by cross-arranged ribs 322b, so that the end surface of the second rubber protrusion 322 forms a contact surface in the shape of a grid 322a. During the operation of the shock absorber, as the vibration frequency changes, the contact area and speed of the rubber bushing assembly 30 and the end cover 20 change accordingly. The more the parts that originally did not contact the gap contact, the higher the probability of the occurrence of impact noise between the rubber bushing assembly 30 and the end cover 20.

[0035] In the present invention, when the second rubber protrusion 322 hits the end cover 20, the grid 322a can buffer the impact between the second rubber protrusion 322 and the end cover 20 and reduce the contact area between the second rubber protrusion 322 and the end cover 20, thereby effectively reducing the impact noise, improving the working performance of the shock absorber, and meeting the noise reduction requirements of new energy vehicles and other models.

[0036] The utility model reduces the impact noise under high-frequency vibration conditions by changing the contact mode between the rubber bushing assembly 30 and the end cover 20, which does not generate additional costs and can effectively solve the noise problem.

[0037] In some embodiments, the distance between the top surface of the grid 322a and the end surface of the second rubber protrusion 322 is between 0.5 mm and 1 mm. In this way, a gap of 0.5 mm to 1 mm is left between the top surface of the grid 322a and the end surface of the second rubber protrusion 322, which helps to buffer the impact of the second rubber protrusion 322 and the end cover 20 through the grid 322a when the second rubber protrusion 322 hits the end cover 20, and reduces the contact area between the second rubber protrusion 322 and the end cover 20, thereby effectively reducing the impact noise.

[0038] In some embodiments, the end surface of the second rubber protrusion 322 and each cell of the corresponding grid 322a form a cavity. The cavity may be gradually concave from the connection with the rib 322b toward the center of the grid 322a, but is not limited thereto. The cavity increases the gap between the top surface of the grid 322a and the end surface of the second rubber protrusion 322, further improving the performance of the grid 322a in buffering the impact of the second rubber protrusion 322 and the end cover 20 and reducing the contact area between the second rubber protrusion 322 and the end cover 20.

[0039] In some embodiments, each cell of the grid 322a is formed as a square cell, and the side length of the square cell is between 0.5 mm and 1 mm. In some embodiments, each cell of the grid 322a is formed as a circular cell, and the diameter of the circular cell is between 0.5 mm and 1 mm.

[0040] Even in some embodiments, each cell of the grid 322a can be formed into a special-shaped cell, and the size of the special-shaped cell can be set as needed, usually within 0.2 mm. 2 ~1mm 2 More suitable.

[0041] In some embodiments, the first rubber protrusion 321 and the second rubber protrusion 322 are both formed in a prism shape. In this way, during the operation of the shock absorber, when the rubber bushing assembly 30 moves toward the end cover 20, the first rubber protrusion 321 and the second rubber protrusion 322 gradually increase the contact with the end cover 20, which helps to reduce the matching noise between the rubber bushing assembly 30 and the end cover 20.

[0042] The first rubber protrusion 321 , the second rubber protrusion 322 , and the grid 322 a structure on the end surface of the second rubber protrusion 322 can be integrally formed to improve production efficiency and simplify production process.

[0043] Furthermore, in some embodiments, a supporting shoulder 100 is provided in the cavity of the supporting shell 10, and a third rubber protrusion 323 and a fourth rubber protrusion 324 are formed at the second end of the rubber bushing assembly 30 facing the supporting shoulder 100, which are alternately distributed. The third rubber protrusion 323 is higher than the fourth rubber protrusion 324, and a grid is also provided on the end surface of the fourth rubber protrusion 324, and the grid is formed by cross-arranged ribs.

[0044] During the operation of the shock absorber, the third rubber protrusion 323 maintains contact with the support shoulder 100, and the fourth rubber protrusion 324 contacts and leaves the support shoulder 100 in the compression stroke and the extension stroke of the shock absorber. When the fourth rubber protrusion 324 hits the support shoulder 100, the grid arranged on its end surface can buffer the impact between the fourth rubber protrusion 324 and the support shoulder 100 and reduce the contact area between the fourth rubber protrusion 324 and the support shoulder 100, thereby effectively reducing the impact noise and improving the working performance of the shock absorber.

[0045] The specific structure of the grid disposed on the end surface of the fourth rubber protrusion 324 is similar to the grid 322 a disposed on the end surface of the second rubber protrusion 322 , and thus will not be described again.

[0046] When assembling the support member for the shock absorber, the rubber bushing assembly 30 can be firstly pressed into the support housing 10 by interference fit, and then the end cover 20 can be assembled.

[0047] An embodiment of the utility model further provides a shock absorber, which is equipped with a support member for the shock absorber as described in any of the above embodiments.

[0048] The shock absorber is installed in the vehicle suspension system, and the shock absorber support 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, and improving driving comfort and handling. The shock absorber of the utility model is equipped with the above-mentioned shock absorber support, and the impact noise under high-frequency vibration conditions is reduced by changing the contact mode between the rubber bushing assembly 30 and the end cover 20 and the support shoulder 100 of the support housing 10, thereby effectively solving the noise problem and improving the working performance of the shock absorber.

[0049] 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 for 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 facing the end cover is formed with first rubber protrusions and second rubber protrusions that are alternately distributed at intervals, the first rubber protrusion is higher than the second rubber protrusion, and the end surface of the second rubber protrusion is provided with a grid, which is formed by cross-arranged ribs.

2. The support member for a vibration damper according to claim 1, wherein: In a natural state, the first rubber protrusion presses and contacts the end cover, and the second rubber protrusion is spaced apart from the end cover; As the rubber bushing assembly moves toward the end cover, the second rubber protrusion contacts the end cover through the mesh; As the rubber bushing assembly moves away from the end cover, the second rubber protrusion leaves the end cover.

3. The support member for a vibration damper according to claim 1, wherein: The distance between the top surface of the grid and the end surface of the second rubber protrusion is between 0.5 mm and 1 mm.

4. The support member for a vibration damper according to claim 1, wherein: The end surface of the second rubber protrusion corresponds to each cell of the grid to form a cavity.

5. The support member for a vibration damper according to claim 1, wherein: Each cell of the grid is formed as a square cell, and the side length of the square cell is between 0.5 mm and 1 mm.

6. The support member for a vibration damper according to claim 1, wherein: Each cell of the grid is formed as a circular cell, and a diameter of the circular cell is between 0.5 mm and 1 mm.

7. The support member for a vibration damper according to claim 1, wherein: The first rubber protrusion and the second rubber protrusion are both formed in a prism shape.

8. The support member for a vibration damper according to any one of claims 1 to 7, characterized in that: A supporting shoulder is arranged in the cavity of the supporting shell, and a third rubber protrusion and a fourth rubber protrusion which are alternately distributed are formed on the second end of the rubber bushing assembly facing the supporting shoulder. The third rubber protrusion is higher than the fourth rubber protrusion, and a grid is arranged on the end surface of the fourth rubber protrusion, and the grid is formed by cross-arranged ribs.

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

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