CN204692449U - Rear axle power bump leveller - Google Patents

Rear axle power bump leveller Download PDF

Info

Publication number
CN204692449U
CN204692449U CN201520396555.2U CN201520396555U CN204692449U CN 204692449 U CN204692449 U CN 204692449U CN 201520396555 U CN201520396555 U CN 201520396555U CN 204692449 U CN204692449 U CN 204692449U
Authority
CN
China
Prior art keywords
block rubber
plate
bump leveller
axle power
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.)
Withdrawn - After Issue
Application number
CN201520396555.2U
Other languages
Chinese (zh)
Inventor
谢小洋
陈钊
邱群虎
蔡月
蒲弘杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongfeng Liuzhou Motor Co Ltd
Original Assignee
Dongfeng Liuzhou Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dongfeng Liuzhou Motor Co Ltd filed Critical Dongfeng Liuzhou Motor Co Ltd
Priority to CN201520396555.2U priority Critical patent/CN204692449U/en
Application granted granted Critical
Publication of CN204692449U publication Critical patent/CN204692449U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of rear axle power bump leveller, relate to auto-parts technical field, it 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, are provided with balancing weight in the both ends of the surface of described block rubber, and described balancing weight is by being connected through the bolt of described block rubber.The utility model solves back axle and vibrates the problem that after in the commercial vehicle caused, in row's car, sound pressure level is larger.

Description

Rear axle power bump leveller
Technical field
The utility model 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.
Model utility content
The purpose of this utility model is to provide a kind of rear axle power bump leveller, and 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 adopted in the utility model 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 utility model 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 utility model is described in further detail:
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 2 are welded and fixed for connecting plate 1-1 and mounting bush 2; 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.
CN201520396555.2U 2015-06-10 2015-06-10 Rear axle power bump leveller Withdrawn - After Issue CN204692449U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520396555.2U CN204692449U (en) 2015-06-10 2015-06-10 Rear axle power bump leveller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520396555.2U CN204692449U (en) 2015-06-10 2015-06-10 Rear axle power bump leveller

Publications (1)

Publication Number Publication Date
CN204692449U true CN204692449U (en) 2015-10-07

Family

ID=54232747

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520396555.2U Withdrawn - After Issue CN204692449U (en) 2015-06-10 2015-06-10 Rear axle power bump leveller

Country Status (1)

Country Link
CN (1) CN204692449U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105003592A (en) * 2015-06-10 2015-10-28 东风柳州汽车有限公司 Rear axle power vibration absorber
US10502308B2 (en) 2016-12-22 2019-12-10 Polaris Industries Inc. Driveline for powersports vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105003592A (en) * 2015-06-10 2015-10-28 东风柳州汽车有限公司 Rear axle power vibration absorber
CN105003592B (en) * 2015-06-10 2017-12-12 东风柳州汽车有限公司 Rear axle power bump leveller
US10502308B2 (en) 2016-12-22 2019-12-10 Polaris Industries Inc. Driveline for powersports vehicle

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned
AV01 Patent right actively abandoned

Granted publication date: 20151007

Effective date of abandoning: 20171212