CN105003592A - Rear axle power vibration absorber - Google Patents
Rear axle power vibration absorber Download PDFInfo
- Publication number
- CN105003592A CN105003592A CN201510314885.7A CN201510314885A CN105003592A CN 105003592 A CN105003592 A CN 105003592A CN 201510314885 A CN201510314885 A CN 201510314885A CN 105003592 A CN105003592 A CN 105003592A
- Authority
- CN
- China
- Prior art keywords
- rear axle
- axle power
- connecting plate
- block rubber
- mounting bush
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/28—Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft; Attaching or mounting same
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Vehicle Body Suspensions (AREA)
- Vibration Prevention Devices (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a rear axle power vibration absorber, and relates to the technical field of vehicle components. The rear axle power vibration absorber comprises a mounting bush fixed on a bracket, wherein the bracket has a connecting plate outwards extending from the mounting bush; a rubber block is embedded in the connecting plate; the two end surfaces of the rubber block are both projected on the surface of the connecting plate, and are both provided with balancing weights; and the balancing weights are connected through a bolt penetrating through the rubber block. The rear axle power vibration absorber solves the problem of higher interior acoustic pressure level of a back row in a commercial vehicle caused by the vibration of a rear axle.
Description
Technical field
The present invention relates to auto-parts technical field, especially a kind of rear axle power bump leveller.
Background technique
Can vibration & noise be produced in vehicle traveling process, reduce vibration and reduce the Security that noise can promote travelling comfort that passenger takes and traveling.When solving noise problem in compartment, general soundproof material and the technology of adopting carrys out noise isolation.And vibration is one of root of noise generation, when vibrating reduction, noise also decreases, and therefore, how to reduce to vibrate the important research project becoming and effectively improve riding comfort and driving safety.Vehicle vibration damping measure comprises to be optimized auto parts and components structure and arranges dynamic vibration absorber at vehicle frame and between vehicle frame and motor, because of some key components and parts because self structure limits, there is the vibration peak band under some frequency band, optimize these component relate to larger change and be difficult to realize, main employing thing bump leveller vibration damping at present, existing dynamic vibration absorber absorbs the vibrational energy of vibrating source and oscillating body by the resonator system that its spring produces, to reduce vibration.Claimant is when analyzing the NVH problem of commercial vehicle, find that the sound pressure level after in commercial vehicle in row's car near acoustics 220Hz is larger, as shown in Figure 1, find by analyzing, there is same vibration component in rear axle final drive housing body, this shows that the noise arranged after in commercial vehicle in car mainly causes due to back axle vibration, but is not specifically designed to the vibration damping equipment of back axle at present.
Summary of the invention
The object of this invention is to provide a kind of rear axle power bump leveller, this bump leveller can solve back axle and vibrate the problem that after in the commercial vehicle caused, in row's car, sound pressure level is larger.
In order to solve the problem, the technical solution used in the present invention is: this rear axle power bump leveller comprises the mounting bush be fixed on support, described support has by the outward extending connecting plate of described mounting bush, described connecting plate is embedded with block rubber, the both ends of the surface of described block rubber all protrude the plate face of described connecting plate, be provided with balancing weight in the both ends of the surface of described block rubber, described balancing weight is by being connected through the bolt of described block rubber.
In the technological scheme of above-mentioned rear axle power bump leveller, technological scheme can also be more specifically: described support and described mounting bush sulfidization molding; Described support has been arranged side by side two described mounting bush, described mounting bush and described support welding are fixed.
Further, described connecting plate is arranged at the position near described mounting bush one end, and described mounting bush is perpendicular to described connecting plate, and described connecting plate welds with the protruding parts of described mounting bush.
Further, lining is provided with between described block rubber and described bolt.
Further, the periphery of described block rubber offers the groove embedding described connecting plate.
Further, described block rubber is symplex structure.
Further, the two ends of described block rubber are provided with boss.
Further, the gross weight of described balancing weight is not less than 2kg; Described block rubber rigidity is 4000 N/mm, and hardness is 70 degree.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect:
1, after rear axle power bump leveller being installed, effectively reducing back axle master and subtract housing X, Z-direction vibration, reduce the vibration being passed to vehicle body, improve car load NVH performance.
2, structure is simple, and reliability is high, and balancing weight is easy to dismounting, when needing to change bump leveller frequency, and counterweight-changeable.
Accompanying drawing explanation
Fig. 1 be rear axle power bump leveller is not installed car in acoustics 220Hz slice map.
Fig. 2 is the structural representation of this rear axle power bump leveller embodiment.
Fig. 3 installs this rear axle power bump leveller schematic diagram.
Fig. 4 installs acoustics 220Hz slice map in the car before and after this rear axle power bump leveller.
Embodiment
Below in conjunction with accompanying drawing embodiment, the invention will be further described:
Rear axle power bump leveller shown in Fig. 2 mainly comprises support 1, mounting bush 2, block rubber 3, balancing weight 4, lining 5 and bolt 6, support 1 is fixed with two mounting bush be arranged side by side 2, the two ends of mounting bush 2 are provided with the location shaft shoulder with the clamping of support 1 inwall; Support 1 has a connecting plate 1-1 arranged near mounting bush 2 one end, and in vertical state, protruding parts and the connecting plate 1-1 of mounting bush 1 are welded and fixed for connecting plate 1-1 and mounting bush 1; Connecting plate 1-1 extends to side, is embedded with a block rubber 3 at the extension part of connecting plate 1-1, and the periphery of block rubber 3 offers the groove embedding connecting plate, and block rubber 3 is symplex structure, and its two ends are equipped with boss; Be symmetrically arranged with balancing weight 4 in the both ends of the surface of block rubber 3, two balancing weights 4 are connected by the bolt 6 through block rubber 3, and the two ends of bolt 6 has locking nut, and balancing weight 4 offers the counterbore of accommodating locking nut; Lining 5 is also provided with, to avoid damaging block rubber 3 with when changing pouring weight 4 between block rubber 3 and bolt 6; The support 1 of the present embodiment and mounting bush 2 sulfidization molding.It is worth mentioning that, the gross weight of balancing weight 4 is not less than 2kg; Block rubber 3 rigidity is 4000 N/mm, and hardness is 70 degree.
During use, detect assembly resonant frequency, adjustment balancing weight 4 quality carries out frequency adjustment, debugging rear axle power bump leveller response frequency in the present embodiment is the wide band of 220Hz, attaches it on the back axle of commercial vehicle, as shown in Figure 3, two mounting bush are arranged on rear axle final drive housing body by bolt respectively, back axle vibration improves obviously, and Z-direction is particularly remarkable, as shown in Figure 4; After in car, row's sound pressure level obviously reduces, and 220Hz frequency band amplitude significantly reduces, and rear axle power bump leveller can effectively reduce back axle vibratory output, reduces body vibrations, reduces car inner evaluation point sound pressure level, improves car load NVH performance.
Claims (8)
1. a rear axle power bump leveller, it is characterized in that: comprise the mounting bush be fixed on support, described support has by the outward extending connecting plate of described mounting bush, described connecting plate is embedded with block rubber, the both ends of the surface of described block rubber all protrude the plate face of described connecting plate, be provided with balancing weight in the both ends of the surface of described block rubber, described balancing weight is by being connected through the bolt of described block rubber.
2. rear axle power bump leveller according to claim 1, is characterized in that: described support and described mounting bush sulfidization molding; Described support has been arranged side by side two described mounting bush, described mounting bush and described support welding are fixed.
3. rear axle power bump leveller according to claim 2, it is characterized in that: described connecting plate is arranged at the position near described mounting bush one end, described mounting bush is perpendicular to described connecting plate, and described connecting plate welds with the protruding parts of described mounting bush.
4. the rear axle power bump leveller according to any one of claims 1 to 3, is characterized in that: be provided with lining between described block rubber and described bolt.
5. rear axle power bump leveller according to claim 4, is characterized in that: the periphery of described block rubber offers the groove embedding described connecting plate.
6. rear axle power bump leveller according to claim 5, is characterized in that: described block rubber is symplex structure.
7. rear axle power bump leveller according to claim 6, is characterized in that: the two ends of described block rubber are provided with boss.
8. rear axle power bump leveller according to claim 7, is characterized in that: the gross weight of described balancing weight is not less than 2kg; Described block rubber rigidity is 4000 N/mm, and hardness is 70 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510314885.7A CN105003592B (en) | 2015-06-10 | 2015-06-10 | Rear axle power bump leveller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510314885.7A CN105003592B (en) | 2015-06-10 | 2015-06-10 | Rear axle power bump leveller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105003592A true CN105003592A (en) | 2015-10-28 |
| CN105003592B CN105003592B (en) | 2017-12-12 |
Family
ID=54376390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510314885.7A Active CN105003592B (en) | 2015-06-10 | 2015-06-10 | Rear axle power bump leveller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105003592B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106347113A (en) * | 2016-11-29 | 2017-01-25 | 安徽江淮汽车集团股份有限公司 | Vibration absorber assembly |
| JP2020016302A (en) * | 2018-07-26 | 2020-01-30 | ナブテスコ株式会社 | Attitude control device and brake device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1057510A (en) * | 1964-12-23 | 1967-02-01 | Opel Adam Ag | Rear axle arrangements for motor vehicles |
| JPH06143955A (en) * | 1992-10-30 | 1994-05-24 | Hino Motors Ltd | Rear suspension used for automobile |
| CN1824966A (en) * | 2006-03-18 | 2006-08-30 | 鲍俊瑶 | Broadband power vibration damper for automobile rear axle |
| CN201296150Y (en) * | 2008-12-05 | 2009-08-26 | 江铃汽车股份有限公司 | Automobile rearmost axle damping device |
| CN203254894U (en) * | 2013-04-24 | 2013-10-30 | 北京汽车股份有限公司 | Automotive rear axle energy absorber and automobile |
| CN204477176U (en) * | 2015-01-21 | 2015-07-15 | 山东美晨科技股份有限公司 | A kind of Novel rear axle dynamic vibration absorber |
| CN204692449U (en) * | 2015-06-10 | 2015-10-07 | 东风柳州汽车有限公司 | Rear axle power bump leveller |
-
2015
- 2015-06-10 CN CN201510314885.7A patent/CN105003592B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1057510A (en) * | 1964-12-23 | 1967-02-01 | Opel Adam Ag | Rear axle arrangements for motor vehicles |
| JPH06143955A (en) * | 1992-10-30 | 1994-05-24 | Hino Motors Ltd | Rear suspension used for automobile |
| CN1824966A (en) * | 2006-03-18 | 2006-08-30 | 鲍俊瑶 | Broadband power vibration damper for automobile rear axle |
| CN201296150Y (en) * | 2008-12-05 | 2009-08-26 | 江铃汽车股份有限公司 | Automobile rearmost axle damping device |
| CN203254894U (en) * | 2013-04-24 | 2013-10-30 | 北京汽车股份有限公司 | Automotive rear axle energy absorber and automobile |
| CN204477176U (en) * | 2015-01-21 | 2015-07-15 | 山东美晨科技股份有限公司 | A kind of Novel rear axle dynamic vibration absorber |
| CN204692449U (en) * | 2015-06-10 | 2015-10-07 | 东风柳州汽车有限公司 | Rear axle power bump leveller |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106347113A (en) * | 2016-11-29 | 2017-01-25 | 安徽江淮汽车集团股份有限公司 | Vibration absorber assembly |
| JP2020016302A (en) * | 2018-07-26 | 2020-01-30 | ナブテスコ株式会社 | Attitude control device and brake device |
| CN110778623A (en) * | 2018-07-26 | 2020-02-11 | 纳博特斯克有限公司 | Attitude control device and brake device |
| TWI748213B (en) * | 2018-07-26 | 2021-12-01 | 日商納博特斯克股份有限公司 | Attitude control device and brake device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105003592B (en) | 2017-12-12 |
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