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 shell with a mounting edge, the mounting edge is provided with a mounting hole, and the end edge, located on the mounting face of the mounting edge, of the mounting hole is chamfered to form a containing cavity; the bolt comprises a threaded part and a knurling part which are connected, the knurling part and the mounting hole are in interference press fitting, and the threaded part extends out of the mounting hole and is located on one side of the mounting surface; wherein the knurling part is pressed into the mounting hole from the other face, opposite to the mounting face, of the mounting edge, the knurling part cuts the mounting hole, and the containing cavity contains the cutting burrs. According to the supporting piece for the shock absorber, the containing cavity is additionally formed in the side end edge of the installation face of the installation hole of the supporting piece for the shock absorber, burrs generated by interference press fitting of a bolt and the installation hole are hidden in the containing cavity, the burrs are prevented from being exposed out of the installation face, and therefore reliable assembly of the shock absorber and a vehicle body component is prevented from being affected.

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 arranged at the end of the cylinder of the shock absorber, and is used for connecting and installing the shock absorber with the body parts. It can also attenuate the vibration transmitted to the body by the ground, and improve the driving comfort and handling of the vehicle.

[0003] In order to realize the connection and installation of the shock absorber and the body component, a bolt with threads and knurling is connected to the mounting edge of the housing of the support; the bolt is press-fitted with the support through the knurling, and the shock absorber and the body component are screwed together through the thread.

[0004] In current supporting parts, during the process of bolts being assembled to the mounting edge through knurling, burrs are easily generated on the mounting surface of the mounting edge due to the interference fit operation. These burrs will affect the fitability of the mounting surface, resulting in a small gap between the mounting surface and the vehicle body when the shock absorber is connected and installed to the vehicle body. After a long time, the nut will loosen and generate fitting noise.

[0005] 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

[0006] In view of this, the utility model provides a support member for a shock absorber and a shock absorber, by adding a receiving cavity along the side end of the mounting surface of the mounting hole of the support member for the shock absorber, burrs generated by the interference fit between the bolt and the mounting hole are received and hidden in the receiving cavity, avoiding the burrs from being exposed on the mounting surface, thereby avoiding affecting the reliable assembly of the shock absorber and the body parts.

[0007] According to one aspect of the utility model, there is provided a support member for a shock absorber, comprising: a shell with a mounting edge, the mounting edge being provided with a mounting hole, the mounting hole end of the mounting hole located on the mounting surface of the mounting edge being cut at an angle to form a receiving cavity; a bolt comprising a connected threaded portion and a knurled portion, the knurled portion being press-fitted with the mounting hole by interference fit, the threaded portion extending out of the mounting hole and being located on one side of the mounting surface; wherein, as the knurled portion is pressed into the mounting hole from the other side of the mounting edge opposite to the mounting surface, the knurled portion cuts the mounting hole, and the receiving cavity receives the cutting burrs.

[0008] In some embodiments, the receiving cavity is axially symmetrical with respect to a central axis of the mounting hole.

[0009] In some embodiments, the receiving cavity is formed as a V-shaped cavity.

[0010] In some embodiments, the depth of the receiving cavity is not less than 5% of the thickness of the mounting edge.

[0011] In some embodiments, the diameter of the cavity opening of the receiving cavity is not less than 10% of the maximum outer diameter of the knurled portion.

[0012] In some embodiments, an end surface of the knurled portion close to the threaded portion forms a chamfered surface.

[0013] In some embodiments, a circle of grooves is provided in the middle of the knurled portion; as the knurled portion cuts the mounting hole, the grooves collect cutting debris.

[0014] In some embodiments, the height of the groove along the axial direction is no greater than 10% of the height of the knurled portion along the axial direction.

[0015] In some embodiments, the support for the shock absorber is an upper support for the shock absorber.

[0016] According to another aspect of the utility model, a shock absorber is provided. The shock absorber is provided with a shock absorber support as described in any of the above embodiments. The shock absorber is assembled with a vehicle body component via bolts of the shock absorber support.

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

[0018] The utility model cuts an angle on the side end edge of the mounting surface of the mounting hole of the support member for the shock absorber to form a receiving cavity, so that in the process of the knurled part being pressed into the mounting hole by interference fit, the burrs generated by the knurled part cutting the mounting hole are received and hidden by the receiving cavity and are not left on the mounting surface, thereby ensuring that the assemblability of the mounting surface is not affected, effectively avoiding the problem of loose fit between the mounting surface and the vehicle body component when the shock absorber is installed, and ensuring that the support member for the shock absorber is reliably connected to the installed shock absorber and the vehicle body component.

[0019] The utility model provides a receiving cavity at the end edge of the mounting hole of the support member for the shock absorber, so that burrs generated by the interference fit of the bolt and the mounting hole are hidden in the receiving cavity, thereby preventing the burrs from being exposed on the mounting surface. This not only does not generate additional costs, but also can reliably achieve the firm assembly of the shock absorber and the vehicle body parts.

[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 diagram showing the structure of a support member for a shock absorber in an embodiment of the utility model;

[0023] Figure 2 An enlarged structural schematic diagram of the receiving cavity of the support member for the shock absorber in the embodiment of the utility model is shown;

[0024] Figure 3 A schematic structural diagram of a bolt of a support member for a shock absorber 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 2The enlarged structure of the receiving cavity of the support member for the shock absorber is shown in FIG. Figure 3 The structure of the bolts of the support for the shock absorber is shown; Figures 1 to 3 As shown, the support member for the shock absorber provided by the embodiment of the utility model comprises:

[0030] A housing 10 with a mounting edge 11, wherein the mounting edge 11 is provided with a mounting hole 110, and an end of the mounting hole 110 located on a mounting surface 11a of the mounting edge 11 is cut at an angle to form a receiving cavity 12;

[0031] The bolt 20 includes a threaded portion 21 and a knurled portion 22 connected to each other. The knurled portion 22 is press-fitted with the mounting hole 110 by interference fit. The threaded portion 21 extends out of the mounting hole 110 and is located on one side of the mounting surface 11a.

[0032] The knurled portion 22 is pressed into the mounting hole 110 from the other surface 11 b of the mounting edge 11 opposite to the mounting surface 11 a , and the knurled portion 22 cuts the mounting hole 110 , and the receiving cavity 12 receives the cutting burrs.

[0033] The bolt 20 and the housing 10 are assembled by the knurled portion 22 being pressed into the mounting hole 110 by interference fit. The principle is to use the outer diameter of the knurled portion 22 to be larger than the inner diameter of the mounting hole 110 to obtain large friction and torque, so that the bolt 20 is firmly assembled in the mounting hole 110. In the process of the knurled portion 22 being pressed into the mounting hole 110 by interference fit, the burrs formed by cutting are accumulated in the receiving cavity 12 located on the mounting surface 11a side of the mounting hole 110, so as to avoid affecting the assembly of the mounting surface 11a. The shock absorber and the body part can be pressed and fit by the mounting surface 11a, and can be screwed and fixed by the threaded portion 21 of the bolt 20. The mounting edge 11 can be provided with a plurality of mounting holes 110 at intervals along the circumference, so that the shock absorber and the body part can be firmly screwed by a plurality of bolts 20.

[0034] The utility model cuts an angle along the side end of the mounting surface 11a of the mounting hole 110 of the support for the shock absorber to form a receiving cavity 12. When the knurled portion 22 is pressed into the mounting hole 110 through interference fit, the burrs generated by the knurled portion 22 cutting the mounting hole 110 are received and hidden by the receiving cavity 12 and are not left on the mounting surface 11a, thereby ensuring that the assemblability of the mounting surface 11a is not affected, effectively avoiding the problem of loose fit between the mounting surface 11a and the body component when the shock absorber is installed, and ensuring that the support for the shock absorber is reliably connected to the installed shock absorber and the body component.

[0035] The utility model adds a receiving cavity 12 at the end edge of the mounting hole 110 of the shock absorber support, so that the burrs generated by the interference fit between the bolt 20 and the mounting hole 110 are hidden in the receiving cavity 12, and the burrs are prevented from being exposed on the mounting surface 11a. In this way, no additional cost is generated and the shock absorber and the body parts can be securely assembled.

[0036] In some embodiments, the receiving cavity 12 is axially symmetrical with respect to the central axis of the mounting hole 110. When the knurled portion 22 is pressed into the mounting hole 110 by interference fit, the knurled portion 22 cuts the hole wall of the mounting hole 110 uniformly in the circumferential direction, and the generated burrs are usually uniformly distributed in the circumferential direction. By designing the receiving cavity 12 to be axially symmetrical with respect to the central axis of the mounting hole 110, the receiving cavity 12 can completely accommodate the burrs uniformly distributed in the circumferential direction.

[0037] In some embodiments, the receiving cavity 12 is formed as a V-shaped cavity. Thus, the V-shaped receiving cavity 12 can be formed by simply chamfering the edge of the mounting hole 110 located on the mounting surface 11 a.

[0038] In other embodiments, the receiving cavity 12 may also be formed into other shapes, such as U-shape, fan-shape, other special shapes, etc., as long as it can accommodate the burrs generated by the knurled portion 22 cutting the mounting hole 110 and avoid affecting the assembly of the mounting surface 11a while not affecting the structural strength of the mounting hole 110.

[0039] In some embodiments, the depth of the receiving cavity 12 is not less than 5% of the thickness of the mounting edge 11. The axial length of the mounting hole 110 is equal to the thickness of the mounting edge 11. By designing that the depth of the receiving cavity 12 is not less than 5% of the thickness of the mounting edge 11, it is ensured that the receiving cavity 12 completely receives and hides the burrs generated by the knurled portion 22 cutting the mounting hole 110.

[0040] Specifically, the depth of the receiving cavity 12 can be set to 5%, 6%, 8%, etc. of the thickness of the mounting edge 11, as long as it can accommodate the burrs generated by the knurled portion 22 cutting the mounting hole 110, avoid affecting the assembly of the mounting surface 11a, and not affect the structural strength of the mounting hole 110.

[0041] In some embodiments, the diameter of the cavity opening of the receiving cavity 12 is not less than 10% of the maximum outer diameter of the knurled portion 22. The cavity opening of the receiving cavity 12 is located on the mounting surface 11a. By designing that the cavity opening diameter of the receiving cavity 12 is not less than 10% of the maximum outer diameter of the knurled portion 22, it is ensured that the receiving cavity 12 completely accommodates and hides the burrs generated by the knurled portion 22 cutting the mounting hole 110.

[0042] Specifically, the diameter of the cavity opening of the accommodating cavity 12 can be set to 10%, 12%, 15%, etc. of the maximum outer diameter of the knurled portion 22, as long as it can accommodate the burrs generated by the knurled portion 22 cutting the mounting hole 110 and avoid affecting the assembly of the mounting surface 11a, while not affecting the structural strength of the mounting hole 110 and the mounting surface 11a.

[0043] In some embodiments, the end surface of the knurled portion 22 close to the threaded portion 21 forms a chamfered slope 220. The chamfered slope 220 guides and eases the initial stage of the knurled portion 22 being pressed into the mounting hole 110 to reduce burrs formed by cutting the mounting hole 110.

[0044] The angle of the chamfered surface 220 can be set as required. For example, the angle between the chamfered surface 220 and the axial direction is between 30° and 60°, but not limited thereto.

[0045] In some embodiments, a circle of grooves 222 are provided in the middle of the knurled portion 22; as the knurled portion 22 is pressed into the mounting hole 110 with interference fit, the knurled portion 22 cuts the mounting hole 110, and the grooves 222 collect cutting debris.

[0046] In order to ensure a stable fit between the knurled portion 22 and the mounting hole 110, there needs to be a certain amount of interference between the knurling of the knurled portion 22 and the inner wall of the mounting hole 110; in the process of the knurled portion 22 being pressed into the mounting hole 110 by interference, the inner wall of the mounting hole 110 is cut, generating metal debris, which is pushed to the end of the mounting hole 110 as the bolt 20 moves, and is likely to increase burrs. In this embodiment, a circle of grooves 222 is added to the middle of the knurled portion 22 to collect some of the metal debris generated in the process of the knurled portion 22 being pressed into the mounting hole 110 by interference, so as to reduce the accumulation of metal debris at the end of the mounting hole 110, that is, to reduce the burrs in the receiving cavity 12, and avoid affecting the assembly of the mounting surface 11a.

[0047] In some embodiments, the axial height of the groove 222 is not greater than 10% of the axial height H of the knurled portion 22. In this way, the arrangement of the groove 222 can avoid affecting the stability of the fit between the knurled portion 22 and the mounting hole 110.

[0048] The support members for the shock absorber described in the above embodiments can be any suitable support members such as the upper support member, the lower support member, the support member of the lateral shock absorber, etc., and can accommodate burrs generated by the interference fit between the hidden bolts 20 and the mounting hole 110 by adding a receiving cavity 12 along the side end of the mounting surface 11a of the mounting hole 110, thereby avoiding the burrs affecting the assembly of the mounting surface 11a and ensuring reliable and firm assembly of the shock absorber and the body parts.

[0049] The embodiment of the utility model further provides a shock absorber, which is equipped with a support member for the shock absorber described in any of the above embodiments, and can achieve fitting and stable assembly with vehicle body parts through the support member for the shock absorber.

[0050] 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, characterized in that: include: A housing with a mounting edge, wherein the mounting edge is provided with a mounting hole, and an end of the mounting hole located on the mounting surface of the mounting edge is cut at an angle to form a receiving cavity; A bolt, comprising a threaded portion and a knurled portion connected to each other, wherein the knurled portion is press-fitted with the mounting hole by interference fit, and the threaded portion extends out of the mounting hole and is located on one side of the mounting surface; Wherein, as the knurled portion is pressed into the mounting hole from the other side of the mounting edge opposite to the mounting surface, the knurled portion cuts the mounting hole, and the receiving cavity receives the cutting burrs.

2. The support member for a vibration damper according to claim 1, wherein: The receiving cavity is axisymmetric relative to the central axis of the mounting hole.

3. The support member for a vibration damper according to claim 1, wherein: The receiving cavity is formed as a V-shaped cavity.

4. The support member for a vibration damper according to claim 1, wherein: The depth of the receiving cavity is not less than 5% of the thickness of the mounting edge.

5. The support member for a vibration damper according to claim 1, wherein: The diameter of the cavity opening of the accommodating cavity is not less than 10% of the maximum outer diameter of the knurled portion.

6. The support member for a vibration damper according to claim 1, wherein: An end surface of the knurled portion close to the threaded portion forms a chamfered surface.

7. The support member for a vibration damper according to claim 1, wherein: A circle of grooves is provided in the middle of the knurled portion; As the knurled portion cuts the mounting hole, the groove collects cutting debris.

8. The vibration damper support member according to claim 7, wherein: The height of the groove along the axial direction is not greater than 10% of the height of the knurled portion along the axial direction.

9. The support member for a vibration damper according to any one of claims 1 to 8, characterized in that: The support member for the shock absorber is an upper support member of the shock absorber.

10. A shock absorber, characterized in that: The shock absorber is provided with the shock absorber support member according to any one of claims 1 to 9, and the shock absorber is assembled to a vehicle body component via bolts of the shock absorber support member.

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