CN107806488B - Automobile rear shock absorber mounting structure - Google Patents
Automobile rear shock absorber mounting structure Download PDFInfo
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- CN107806488B CN107806488B CN201711240145.9A CN201711240145A CN107806488B CN 107806488 B CN107806488 B CN 107806488B CN 201711240145 A CN201711240145 A CN 201711240145A CN 107806488 B CN107806488 B CN 107806488B
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- Prior art keywords
- connecting sleeve
- metal connecting
- shock absorber
- piston rod
- elastic connecting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3221—Constructional features of piston rods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses an automobile rear shock absorber installation structure, which comprises a shock absorber assembly, wherein a piston rod at the upper end of the shock absorber assembly upwards penetrates through an installation hole on a vehicle body plate and is installed and fixed on the vehicle body plate by means of an upper fixing structure, and the lower end of the shock absorber assembly is installed on a rear brake of a vehicle through a lower hanging ring. The invention has the advantages of simple and compact structure, convenient installation, good installation reliability, low using noise and the like.
Description
Technical Field
The invention relates to the field of vehicle installation, in particular to an automobile rear shock absorber installation structure.
Background
In order to quickly attenuate the vibration of the frame and the vehicle body and improve the running smoothness and comfort of the vehicle, a shock absorber is generally arranged on an automobile suspension system, and a bidirectional cylinder shock absorber is widely adopted on the automobile. The shock absorber is a vulnerable part in the using process of the automobile, and the working quality of the shock absorber can directly influence the running stability of the automobile and the service life of other parts, so that the shock absorber is always in a good working state.
The prior automobile rear shock absorber mounting structure comprises a shock absorber assembly 1, a piston rod 2 at the upper end of the shock absorber assembly 1 upwards penetrates through a mounting hole in a vehicle body plate 3 and is mounted and fixed on the vehicle body plate by means of an upper fixing structure, the lower end of the shock absorber assembly 1 is mounted on a rear brake of a vehicle through a lower hanging ring 4, the upper fixing structure comprises elastic buffer cushions 5 sleeved on piston rods at the upper end and the lower end of the vehicle body plate, gaskets 6 positioned on the upper elastic buffer cushions 5, and nuts 7 screwed on the piston rods above the gaskets by threads. The structure has the advantages of simple structure and low cost. The following drawbacks remain: the piston rod is easy to follow up when the nut is locked, so that the nut is difficult to easily lock in place; under the upper and lower axial effort of during operation, compression blotter for the gasket loosens easily, strikes the automobile body at the in-process that resets, makes the noise, and under the horizontal force effect, the bumper shock absorber piston rod also bumps the gasket easily and makes the noise simultaneously.
Therefore, the automobile rear shock absorber mounting structure is convenient to mount, good in mounting reliability and low in using noise.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the technical problems that: how to provide a simple structure compactness, simple to operate, installation reliability is good, uses the low automobile rear shock absorber mounting structure of noise.
In order to solve the technical problems, the invention adopts the following technical scheme:
the mounting structure of the automobile rear shock absorber comprises a shock absorber assembly, a piston rod at the upper end of the shock absorber assembly upwards penetrates through a mounting hole in a vehicle body plate and is mounted and fixed on the vehicle body plate by means of an upper fixing structure, and the lower end of the shock absorber assembly is mounted on a rear brake of the vehicle through a lower hanging ring; the upper section of the lower metal connecting sleeve is provided with an annular inner cavity, an elastic connecting sleeve sleeved outside the piston rod is embedded in the inner cavity, an upper metal connecting sleeve sleeved on the piston rod is also embedded in the elastic connecting sleeve, the upper end of the upper metal connecting sleeve is provided with a ring of upper lip which is upwards beyond the upper end face of the elastic connecting sleeve, the piston rod on the upper lip is provided with external threads and is screwed with an upper fixing nut, and the lower end face of the upper fixing nut is in contact tight with the upper lip.
In the shock absorber assembly with the structure, the structure of a gasket is canceled in an upper fixing structure, then the shock absorber assembly is connected with a vehicle body plate by virtue of a lower metal connecting sleeve and a lower fixing nut, and the shock absorber assembly is tightly fixed with the upper fixing nut by virtue of the upper metal connecting sleeve; and then the elastic connecting sleeve wrapped between the upper metal connecting sleeve and the lower metal connecting sleeve is used for simultaneously realizing elastic shock absorption and noise absorption in the axial direction and the radial direction, so that direct collision noise can not be generated, the installation reliability is good, and the comfort of the whole automobile is improved due to noise reduction.
Preferably, the outer surface of the upper section of the lower metal connecting sleeve is provided with a plurality of outer perforations arranged along a ring shape, the inner surface of the upper metal connecting sleeve is provided with a plurality of inner perforations arranged along a ring shape, the elastic connecting sleeve is made of rubber material, and the inner surface and the outer surface are respectively vulcanized and filled into the outer perforations and the inner perforations.
In this way, the compactness and the integrity of the upper fixing structure can be greatly improved, and the vibration transmitted in the axial direction and the radial direction can be better absorbed and noise can be reduced.
Further, the inner surface of the elastic connecting sleeve is vulcanized and filled into the inner through hole of the upper metal connecting sleeve until the inner surface of the elastic connecting sleeve is flush with the inner surface of the upper metal connecting sleeve. Therefore, part of rubber material is directly contacted with the outer surface of the piston rod, so that the mounting reliability is improved, and radial vibration can be better absorbed, and noise can be reduced.
Further, a spacing gap is reserved between the lower end of the upper metal connecting sleeve and the inner side step surface of the upper part of the lower metal connecting sleeve, and the lower end of the elastic connecting sleeve is vulcanized inwards and filled into the spacing gap until the lower end of the elastic connecting sleeve is flush with the inner surface of the upper metal connecting sleeve. Therefore, the combination reliability between the upper metal connecting sleeve and the elastic connecting sleeve can be better improved, more rubber materials can be directly contacted with the outer surface of the piston rod, the installation reliability is better improved, and the radial vibration can be better absorbed for noise reduction.
As optimization, the outer surface of the position of the external thread at the upper end of the piston rod is vertically provided with two mutually symmetrical torsion limiting planes, the upper lip at the upper end of the upper metal connecting sleeve is positioned at the position of the torsion limiting planes, and the upper end of the upper lip extends inwards after being integrally bent and is attached to the piston rod at the position of the torsion limiting planes in the circumferential direction.
Therefore, by means of the cooperation of the upper lip and the torsion limiting plane, the upper metal connecting sleeve can not continue to descend when being installed to the lower end position of the torsion limiting plane by means of the upper lip when being installed downwards along the piston rod during assembly, and the upper metal connecting sleeve is used as a judgment basis for installation in place. Meanwhile, when the fixing nut is installed, the piston rod can be prevented from rotating by means of the cooperation of the upper lip and the torsion limiting plane, and the installation of the upper fixing nut is greatly facilitated. In addition, the structure of the upper lip enables the upper fixing nut to rotate downwards when being installed and the upper lip is abutted to be tighter, the upper lip is compressed inwards when being compressed downwards, so that the upper lip is abutted to a piston rod inwards to be tighter, and therefore enough axial and radial compound pretightening force is comprehensively generated, and the fixing reliability of the upper fixing nut and the compactness of the upper fixing structure after fixing are greatly improved.
In conclusion, the invention has the advantages of simple and compact structure, convenient installation, good installation reliability, low using noise and the like.
Drawings
Fig. 1 is a schematic structural view of a preferred embodiment of the present invention.
Fig. 2 is an enlarged schematic view of the upper attachment structure of fig. 1 alone.
Fig. 3 is a schematic structural view of the lower end of the separate upper and lower metal connection sleeves and the elastic connection sleeve in fig. 2.
Fig. 4 is a cross-sectional view A-A of fig. 3.
Fig. 5 is a schematic view of a conventional rear shock absorber mounting structure for an automobile according to the related art.
Detailed Description
The present invention will be described in further detail with reference to the preferred embodiments and the accompanying drawings.
Best mode for carrying out the invention: as shown in fig. 1-4, a mounting structure of a rear shock absorber of an automobile comprises a shock absorber assembly 1, a piston rod 2 at the upper end of the shock absorber assembly 1 penetrates through a mounting hole on a vehicle body plate 3 upwards and is mounted and fixed on the vehicle body plate 3 by means of an upper fixing structure, and the lower end of the shock absorber assembly 1 is mounted on a rear brake of the automobile through a lower hanging ring; the upper section of the lower metal connecting sleeve 4 is provided with an annular inner cavity, an elastic connecting sleeve 8 sleeved outside the piston rod is embedded in the inner cavity, an upper metal connecting sleeve 9 sleeved on the piston rod is also embedded in the elastic connecting sleeve 8, the upper end of the upper metal connecting sleeve 9 is provided with a ring of upper lip 10 which upwards exceeds the upper end face of the elastic connecting sleeve, the piston rod 2 on the upper lip 10 is provided with external threads and is screwed with an upper fixing nut 11 in a threaded manner, and the lower end face of the upper fixing nut 11 is in contact with the upper lip 10.
In the shock absorber assembly with the structure, the structure of a gasket is canceled in an upper fixing structure, then the shock absorber assembly is connected with a vehicle body plate by virtue of a lower metal connecting sleeve and a lower fixing nut, and the shock absorber assembly is tightly fixed with the upper fixing nut by virtue of the upper metal connecting sleeve; and then the elastic connecting sleeve wrapped between the upper metal connecting sleeve and the lower metal connecting sleeve is used for simultaneously realizing elastic shock absorption and noise absorption in the axial direction and the radial direction, so that direct collision noise can not be generated, the installation reliability is good, and the comfort of the whole automobile is improved due to noise reduction.
Wherein the outer surface of the upper section of the lower metal connecting sleeve 4 is provided with a plurality of outer perforations arranged along a ring shape, the inner surface of the upper metal connecting sleeve 9 is provided with a plurality of inner perforations arranged along a ring shape, the elastic connecting sleeve 8 is made of rubber material, and the inner surface and the outer surface are respectively vulcanized and filled into the outer perforations and the inner perforations.
In this way, the compactness and the integrity of the upper fixing structure can be greatly improved, and the vibration transmitted in the axial direction and the radial direction can be better absorbed and noise can be reduced.
Wherein, the inner surface of the elastic connecting sleeve 8 is vulcanized and filled into the inner perforation of the upper metal connecting sleeve until the inner surface of the elastic connecting sleeve is flush with the inner surface of the upper metal connecting sleeve. Therefore, part of rubber material is directly contacted with the outer surface of the piston rod, so that the mounting reliability is improved, and radial vibration can be better absorbed, and noise can be reduced.
A gap is reserved between the lower end of the upper metal connecting sleeve 9 and the inner side step surface of the upper part of the lower metal connecting sleeve 4, and the lower end of the elastic connecting sleeve 8 is vulcanized and filled inwards until the gap is flush with the inner surface of the upper metal connecting sleeve. Therefore, the combination reliability between the upper metal connecting sleeve and the elastic connecting sleeve can be better improved, more rubber materials can be directly contacted with the outer surface of the piston rod, the installation reliability is better improved, and the radial vibration can be better absorbed for noise reduction.
The outer surface of the position of the external thread at the upper end of the piston rod 2 is vertically provided with two mutually symmetrical torsion limiting planes 12, an upper lip 10 at the upper end of the upper metal connecting sleeve is positioned at the position of the torsion limiting planes 12, and the upper end of the upper lip 10 extends inwards after being integrally bent and is attached to the piston rod at the position of the torsion limiting planes 12 in the circumferential direction.
Therefore, by means of the cooperation of the upper lip and the torsion limiting plane, the upper metal connecting sleeve can not continue to descend when being installed to the lower end position of the torsion limiting plane by means of the upper lip when being installed downwards along the piston rod during assembly, and the upper metal connecting sleeve is used as a judgment basis for installation in place. Meanwhile, when the fixing nut is installed, the piston rod can be prevented from rotating by means of the cooperation of the upper lip and the torsion limiting plane, and the installation of the upper fixing nut is greatly facilitated. In addition, the structure of the upper lip enables the upper fixing nut to rotate downwards when being installed and the upper lip is abutted to be tighter, the upper lip is compressed inwards when being compressed downwards, so that the upper lip is abutted to a piston rod inwards to be tighter, and therefore enough axial and radial compound pretightening force is comprehensively generated, and the fixing reliability of the upper fixing nut and the compactness of the upper fixing structure after fixing are greatly improved.
Claims (2)
1. The mounting structure of the automobile rear shock absorber comprises a shock absorber assembly, a piston rod at the upper end of the shock absorber assembly upwards penetrates through a mounting hole in a vehicle body plate and is mounted and fixed on the vehicle body plate by means of an upper fixing structure, and the lower end of the shock absorber assembly is mounted on a rear brake of the vehicle through a lower hanging ring; the upper section of the lower metal connecting sleeve is provided with an annular inner cavity, an elastic connecting sleeve sleeved outside the piston rod is embedded in the inner cavity, an upper metal connecting sleeve sleeved on the piston rod is also embedded in the elastic connecting sleeve, the upper end of the upper metal connecting sleeve is provided with a ring of upper lip which is upwards beyond the upper end face of the elastic connecting sleeve, the piston rod on the upper lip is provided with external threads and is screwed with an upper fixing nut, and the lower end face of the upper fixing nut is in contact tight with the upper lip;
the outer surface of the position of the external thread at the upper end of the piston rod is vertically provided with two mutually symmetrical torsion limiting planes, the upper lip at the upper end of the upper metal connecting sleeve is positioned at the position of the torsion limiting planes, and the upper end of the upper lip extends inwards after being integrally bent and is attached to the piston rod at the position of the torsion limiting planes in the circumferential direction;
the outer surface of the upper section of the lower metal connecting sleeve is provided with a plurality of outer through holes which are arranged along a ring shape, the inner surface of the upper metal connecting sleeve is provided with a plurality of inner through holes which are arranged along a ring shape, the elastic connecting sleeve is made of rubber material, and the inner surface and the outer surface are respectively vulcanized and filled into the outer through holes and the inner through holes;
and the inner surface of the elastic connecting sleeve is vulcanized and filled into the inner through hole of the upper metal connecting sleeve until the inner surface of the elastic connecting sleeve is flush with the inner surface of the upper metal connecting sleeve.
2. The rear shock absorber mounting structure of claim 1, wherein a gap is left between the lower end of the upper metal connecting sleeve and the upper inner side step surface of the lower metal connecting sleeve, and the lower end of the elastic connecting sleeve is vulcanized and filled into the gap to be flush with the inner surface of the upper metal connecting sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711240145.9A CN107806488B (en) | 2017-11-30 | 2017-11-30 | Automobile rear shock absorber mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711240145.9A CN107806488B (en) | 2017-11-30 | 2017-11-30 | Automobile rear shock absorber mounting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107806488A CN107806488A (en) | 2018-03-16 |
| CN107806488B true CN107806488B (en) | 2023-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711240145.9A Active CN107806488B (en) | 2017-11-30 | 2017-11-30 | Automobile rear shock absorber mounting structure |
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| CN (1) | CN107806488B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108357315B (en) * | 2018-04-02 | 2024-01-19 | 北京汽车集团越野车有限公司 | Shock absorber assembly and car |
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- 2017-11-30 CN CN201711240145.9A patent/CN107806488B/en active Active
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| CN107806488A (en) | 2018-03-16 |
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