CN113844223A - Vehicle swing arm bush - Google Patents
Vehicle swing arm bush Download PDFInfo
- Publication number
- CN113844223A CN113844223A CN202111205544.8A CN202111205544A CN113844223A CN 113844223 A CN113844223 A CN 113844223A CN 202111205544 A CN202111205544 A CN 202111205544A CN 113844223 A CN113844223 A CN 113844223A
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- China
- Prior art keywords
- rubber
- groove
- swing arm
- vulcanized
- rubber groove
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- 239000004636 vulcanized rubber Substances 0.000 claims abstract description 24
- 230000033001 locomotion Effects 0.000 claims abstract description 6
- 238000002360 preparation method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 241001247986 Calotropis procera Species 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 238000013040 rubber vulcanization Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000000670 limiting effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to a vehicle swing arm bushing which comprises an outer sleeve, an inner sleeve and a vulcanized rubber body vulcanized between the outer sleeve and the inner sleeve. Through having six big groove rings at rubber vulcanization body radial design, increased six little groove rings between big groove ring, through the unequal groove ring of size, play the effect of adjusting rigidity to isolated small-amplitude vibration alleviates Y to big impact when accelerating, braking, guarantees that the bush is spacing, restricts the motion of swing arm well, when improving rubber bush life-span, is favorable to the operating stability, ride comfort and the NVH performance of car. The bushing has the advantages of simple structure, light weight, large radial rigidity, small torsional rigidity, impact alleviation, limitation and comfortable riding.
Description
Technical Field
The invention belongs to the technical field of automobile suspension systems, and particularly relates to a vehicle swing arm bushing.
Background
The swing arm is used as a guide and force transmission element of an automobile suspension system, supports an automobile body and a shock absorber, transmits various forces on wheels to the automobile body, ensures that the wheels move according to a certain track, and is elastically connected with the automobile body through a bushing on the swing arm, so that the swing arm plays a key role in stability, smoothness and NVH of an automobile.
With the popularization of automobile consumption, consumers pay more and more attention to the driving sense of automobiles, particularly cars, and automobile manufacturers have improved comfort, stability, NVH (noise vibration harshness) and vehicle stability to important positions. The swing arm is an important component of the automobile suspension and bears the force and moment transmitted between the wheel and the automobile body (frame), and the wheel and the automobile body are elastically connected together through a ball pin or a bush respectively. The most critical and characteristic-determining part of the swing arm is a bushing, which affects the steering stability, the smoothness, the NVH performance and the braking stability of the automobile. The common rubber bushing is short in service life and easy to lose efficacy due to the design and other reasons, the reasonable design of the rubber bushing is crucial to properly selecting the rigidity in three directions (axial direction, radial direction and torsion), and the reasonable design of the rubber bushing ensures that the whole vehicle has good operation stability, smoothness, NVH performance and braking stability while the service life is met.
The existing swing arm bushing is generally composed of a metal inner pipe, a metal outer pipe and rubber between the metal inner pipe and the metal outer pipe, wherein the rubber is of an integral structure, and the metal inner pipe, the metal outer pipe and the rubber are vulcanized into a whole. The bush is impressed the swing arm body, makes outer tube and swing arm body combine integratively through interference fit.
The bushing is easy to lose efficacy and short in service life, the change of the radial rigidity of the bushing is basically in direct proportion to the radial displacement, and the rigidity of the bushing is high due to small deformation of rubber in small displacement, so that impact cannot be well relieved; the rigidity is not greatly improved during large displacement, the radial movement cannot be well limited, the service life of the bushing is greatly shortened, and the operation stability, the smoothness, the NVH performance and the braking stability of the automobile are influenced.
In order to solve the above problems, the prior art proposes that six large groove rings are radially arranged on a rubber vulcanized body, and three of the six large groove rings are in a group and are communicated with each other, and the two groups of groove rings are symmetrical along the center of a swing arm bushing. Such a structure can contribute to the steering stability, the smoothness and the NVH performance of the automobile, but cannot achieve satisfactory effects in isolating small-amplitude vibration, and mitigating large Y-direction impact at the time of acceleration and braking.
Disclosure of Invention
The invention aims to provide a vehicle swing arm bushing to solve the problems that satisfactory steering stability, smoothness and NVH performance cannot be achieved when a vehicle has small-amplitude vibration and large Y-direction impact during acceleration and braking.
In order to achieve the purpose, the method is realized by the following technical scheme:
a vehicle swing arm bushing comprises an outer sleeve, an inner sleeve and a vulcanized rubber body vulcanized between the outer sleeve and the inner sleeve;
two groups of groove rings are symmetrically arranged on the radial direction of the vulcanized rubber body by taking the axial central line of the inner sleeve as a center, and each group of groove rings consists of three rubber grooves which are mutually communicated and are respectively a first rubber groove, a second rubber groove and a third rubber groove;
an independent rubber groove is further arranged in the radial direction of the vulcanized rubber body, and the area of a port of the independent rubber groove is smaller than that of any one of the three rubber grooves.
Furthermore, the number of the independent rubber grooves is two, the axial center lines of the inner sleeves are symmetrically arranged, and the number of the independent rubber grooves is three, namely a fourth rubber groove, a fifth rubber groove and a sixth rubber groove.
Furthermore, the port area of the fourth rubber groove, the port area of the fifth rubber groove and the port area of the sixth rubber groove are different.
Furthermore, a fourth rubber groove is arranged on the vulcanized rubber body between the two groups of groove rings.
Furthermore, a fifth rubber groove is formed in the vulcanized rubber body between the first rubber groove and the second rubber groove, and a sixth rubber groove is formed in the vulcanized rubber body between the second rubber groove and the third rubber groove.
Further, the shape of the port of any one of the rubber grooves is non-circular.
Furthermore, any one of the rubber grooves is provided with a fillet, so that the situation that the vulcanized rubber body in the swing arm bushing of the vehicle is laterally and longitudinally stress-concentrated is avoided.
The invention has the beneficial effects that:
this technical scheme is through radially offering the unequal rubber groove of size on the vulcanized rubber body at the swing arm bush, compensate the produced volume change of rubber deformation, the rubber groove sets up the fillet, prevent stress concentration, the life-span of rubber bush has been improved, and through the unequal rubber groove of size, play the effect of adjusting rigidity, thereby isolated vibration of small range, alleviate the turn, accelerate, big impact during the braking, it is spacing to have guaranteed the bush, restrict the motion of swing arm well, be favorable to the operating stability of car, the ride comfort, the NVH performance, the braking stability.
Drawings
FIG. 1 is a schematic view of a swing arm bushing of the present invention;
fig. 2 is a sectional view a-a of fig. 1.
Description of the reference numerals
1. Outer tube, 2, inner tube, 3, vulcanite body, 31, first rubber groove, 32, second rubber groove, 33, third rubber groove, 34, fourth rubber groove, 35, fifth rubber groove, 36, sixth rubber groove, 37, rubber, 38, rubber.
Detailed Description
The technical solutions of the present invention are described in detail below by examples, and the following examples are only exemplary and can be used only for explaining and explaining the technical solutions of the present invention, but not construed as limiting the technical solutions of the present invention.
As shown in fig. 1 and 2, the present application relates to a vehicle swing arm bushing, which includes an outer sleeve 1, an inner sleeve 2, and a vulcanized rubber body 3 vulcanized between the outer sleeve and the inner sleeve.
In the vulcanized rubber body footpath, it is provided with two sets of groove rings for the symmetry to interior sheathed tube axial central line, every group groove ring comprises the three rubber groove that communicates mutually, be first rubber groove 31 respectively, second rubber groove 32 and third rubber groove 33, and the port area in first rubber groove, the port area in second rubber groove and the port area inequality in third rubber groove, in the vulcanized rubber body footpath promptly, six big rubber grooves have been seted up, be two first rubber grooves respectively, two second rubber grooves and two third rubber grooves, the port in these six big rubber grooves is non-circular structure, and be provided with the fillet, in order to avoid the vehicle in the motion process rubber in the swing arm bush in the side direction, vertically take place stress concentration.
In the vulcanized rubber body footpath, still be provided with two sets of independent rubber groove separately, the axial central line of interior sleeve pipe is the symmetry setting, and every independent rubber groove of group also comprises three rubber groove, is fourth rubber groove 34, fifth rubber groove 35 and sixth rubber groove 36 respectively, and is specific, and independent rubber groove is total six, is two fourth rubber grooves, two fifth rubber grooves and two sixth rubber grooves.
The port area of the fourth rubber groove, the port area of the fifth rubber groove and the port area of the sixth rubber groove are different. And the port of the fourth rubber groove, the port of the fifth rubber groove and the port of the sixth rubber groove are all non-circular, and are also provided with round corners, so that the stress concentration of rubber in the swing arm bushing in the lateral direction and the longitudinal direction of the vehicle in the moving process is avoided.
The independent rubber groove is arranged at the position that the fourth rubber groove is arranged on the vulcanized rubber body between the two groups of groove rings, the fifth rubber groove and the sixth rubber groove are both arranged on the vulcanized rubber body between each group of groove rings and the outer sleeve, more specifically, the fifth rubber groove is arranged on the vulcanized rubber body between the first rubber groove and the second rubber groove, and the sixth rubber groove is arranged on the vulcanized rubber body between the second rubber groove and the third rubber groove.
According to the multi-groove rubber structure, after the rubber component deforms in motion, the rubber groove has a certain space to make up for volume change caused by rubber deformation, and the rubber is prevented from being damaged due to extrusion deformation caused by insufficient space under a certain stress condition; meanwhile, the rubber grooves are all provided with fillets, stress concentration is prevented, and the service life of the rubber bushing is prolonged.
Various rubber grooves are designed in the radial direction of the rubber vulcanized body, the rubber grooves with different sizes are used for adjusting the rigidity, when the radial displacement of the bushing is small, the interval between the rubber 37 and the rubber 38 is 1mm, when a vehicle acts under the small lateral force, the edge of the rubber 37 of the swing arm bushing is slowly contacted with the rubber 38, the rigidity of the swing arm bushing is only related to the elasticity of the rubber, and at the moment, the rigidity is small, and the bushing can isolate the vibration with small amplitude; when the edge of the rubber 37 is contacted with the rubber 38, the rigidity is increased, the fifth rubber groove 35 and the sixth rubber groove 36 are slowly filled, then the first rubber groove, the second rubber groove and the third rubber groove are slowly filled, the rigidity is obviously increased, the limiting effect is achieved, the impact during turning can be relieved, and when the radial displacement of the bushing reaches a certain value; when the automobile is braked and accelerated, the fourth rubber groove 34 plays a main buffering role, the first rubber groove 31, the second rubber groove 32 and the third rubber groove 33 which are communicated simultaneously are gradually filled, the rigidity is increased, a limiting effect is achieved, the automobile is accelerated and subjected to large longitudinal impact during braking through the adjustment of the longitudinal rigidity, the braking and accelerating stability is improved, and the operation stability, the smoothness and the NVH performance of the automobile are improved.
Although embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A vehicle swing arm bushing comprises an outer sleeve, an inner sleeve and a vulcanized rubber body vulcanized between the outer sleeve and the inner sleeve;
two groups of groove rings are symmetrically arranged on the radial direction of the vulcanized rubber body by taking the axial central line of the inner sleeve as a center, and each group of groove rings consists of three rubber grooves which are mutually communicated and are respectively a first rubber groove, a second rubber groove and a third rubber groove; it is characterized in that the preparation method is characterized in that,
an independent rubber groove is further arranged in the radial direction of the vulcanized rubber body, and the area of a port of the independent rubber groove is smaller than that of any one of the three rubber grooves.
2. The vehicle swing arm bushing of claim 1, wherein the number of the independent rubber slots is two, and the number of the independent rubber slots is three, and the number of the independent rubber slots is four, five, and sixth.
3. The vehicle swing arm bushing of claim 2, wherein the port area of the fourth rubber groove, the port area of the fifth rubber groove, and the port area of the sixth rubber groove are all different.
4. The vehicle swing arm bushing of claim 2, wherein a fourth rubber groove is provided in the vulcanized rubber body between the two sets of groove rings.
5. The vehicle swing arm bushing of claim 2, wherein the fifth rubber groove is disposed on the vulcanized rubber body between the first rubber groove and the second rubber groove, and the sixth rubber groove is disposed on the vulcanized rubber body between the second rubber groove and the third rubber groove.
6. The vehicle swing arm bushing of claim 2, wherein the port shape of any one of the rubber grooves is non-circular.
7. The vehicle swing arm bushing of claim 6, wherein any one of the rubber grooves is provided with a rounded corner to avoid lateral and longitudinal stress concentration of a vulcanized rubber body in the swing arm bushing during movement of the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111205544.8A CN113844223A (en) | 2021-10-15 | 2021-10-15 | Vehicle swing arm bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111205544.8A CN113844223A (en) | 2021-10-15 | 2021-10-15 | Vehicle swing arm bush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113844223A true CN113844223A (en) | 2021-12-28 |
Family
ID=78978538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111205544.8A Pending CN113844223A (en) | 2021-10-15 | 2021-10-15 | Vehicle swing arm bush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113844223A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002025138A1 (en) * | 2000-09-20 | 2002-03-28 | Toyo Tire & Rubber Co., Ltd. | Vibration isolator |
| US20020063196A1 (en) * | 2000-09-20 | 2002-05-30 | Yoshio Ihara | Vibration isolating device |
| KR20090052045A (en) * | 2007-11-20 | 2009-05-25 | 현대모비스 주식회사 | Knuckle for suspension in vehicles |
| CN201736754U (en) * | 2010-07-15 | 2011-02-09 | 浙江天瑞汽车零部件有限公司 | Automobile swinging arm bushing |
| CN202480813U (en) * | 2012-03-23 | 2012-10-10 | 上海通用汽车有限公司 | Rubber bushing of control arm |
| CN103950361A (en) * | 2014-05-20 | 2014-07-30 | 安徽江淮汽车股份有限公司 | Swing arm bushing and vehicle |
-
2021
- 2021-10-15 CN CN202111205544.8A patent/CN113844223A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002025138A1 (en) * | 2000-09-20 | 2002-03-28 | Toyo Tire & Rubber Co., Ltd. | Vibration isolator |
| US20020063196A1 (en) * | 2000-09-20 | 2002-05-30 | Yoshio Ihara | Vibration isolating device |
| KR20090052045A (en) * | 2007-11-20 | 2009-05-25 | 현대모비스 주식회사 | Knuckle for suspension in vehicles |
| CN201736754U (en) * | 2010-07-15 | 2011-02-09 | 浙江天瑞汽车零部件有限公司 | Automobile swinging arm bushing |
| CN202480813U (en) * | 2012-03-23 | 2012-10-10 | 上海通用汽车有限公司 | Rubber bushing of control arm |
| CN103950361A (en) * | 2014-05-20 | 2014-07-30 | 安徽江淮汽车股份有限公司 | Swing arm bushing and vehicle |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211228 |