CN206175539U

CN206175539U - Car vibration damper

Info

Publication number: CN206175539U
Application number: CN201621145699.1U
Authority: CN
Inventors: 宋彭川; 钱昌平; 王智慧
Original assignee: Nanzhang Fuyuanding Aviation Equipment Parts Co Ltd
Current assignee: Nanzhang Fuyuanding Aviation Equipment Parts Co Ltd
Priority date: 2016-10-21
Filing date: 2016-10-21
Publication date: 2017-05-17
Anticipated expiration: 2026-10-21

Abstract

The utility model provides a car vibration damper, includes inner tube, outer tube, lies in the rubber jacket layer between inner tube and the outer tube, and rubber sleeve in situ wall contacts with outer wall of the inner tube, and rubber jacket layer outer wall middle part is equipped with the concave part, and outer inside pipe wall middle part is equipped with the convex part with the corresponding contact of concave part, and rubber jacket layer outer wall both ends contact with outer inside pipe wall both ends, and the outer tube overcoat is equipped with the base. The utility model discloses improving damping noise resistance in can, more can improve vibration damper's life, reducing vehicle operation and cost of upkeep, in addition owing to directly absorb the vibration of having eliminated partly engine self to the rotational speed is accelerated in the twinkling of an eye when engine start and anxious the acceleration, vibrates the elimination with transversely acutely rocking of vehicle. The utility model has the advantages of intensity is high, the shock attenuation is effectual, and the vibration of reducible automobile when going reduces the automobile and rock when going.

Description

A kind of vehicle vibration damping part

Technical field

The utility model belongs to vehicle vibration damping noise reduction field, and in particular to a kind of vehicle vibration damping part.

Background technology

Vehicle vibration damping system, including multiple positions such as vehicle frame shock absorber, engine mounting vibration-damped component, steering gear vibration-damped component, The various parts such as cushion blocking, shock-reducing sleeve, damping frame are included, automobile after start-up, either go by initial idling or high speed Sail, due to will when the friction on tire and road surface, road bump etc. can all produce vibration, especially automobile engine itself operating Produce vibration and form vibration source, so as to trigger noise, these vibrations can all cause the service life of auto parts and components to reduce, for The controllability of driving, the comfortableness taken and the security of vehicle all have a significant impact, thus vehicle vibration damping technology meet the tendency of and Raw, traditional damping technology is, using caoutchouc elasticity deformation, the vibrational energy of vibration source to be partially absorbed and be delivered to again after shock insulation Vehicle body, so as to realize part vibration and noise reducing.

Traditional vibration-damped component rubber necessarily leads to violent high temperature while deformation absorption vibrational energy is produced, and causes Vibration-damped component rubber is aging rapidly, so as to the life-span reduces rapidly, the certain potential safety hazard of generation, and the hydraulic rubber that high-end automobile is adopted Damping technology, although performance and life-span, preferably, but because technical requirements are high difficulty of processing was big, causes cost high, it is impossible to general And be applied in all vehicles.And both damping technologies, cannot all solve engine and start and suddenly accelerating moment rotating speed to add Hurry up, the chronic disease of vibration is acutely rocked in engine operating to the lateral direction of car that vehicle body reaction force is caused.

The content of the invention

The purpose of this utility model is, to overcome the above-mentioned deficiency of prior art, and to provide a kind of vehicle vibration damping part, intensity High, good damping effect, can reduce automobile vibration in motion, reduce automobile and rock in motion.

The technical solution of the utility model is：Including inner tube, outer tube, the rubber jacket layer between inner and outer tubes, rubber Gum cover layer inwall contacts with outer wall of inner tube, and rubber jacket layer outer wall middle part is provided with recess, and outer tube wall middle part is provided with and recess phase The convex portion of correspondence contact, rubber jacket layer outer wall two ends contact with outer tube wall two ends, and pedestal is set with outside outer tube.

The recess is annular recess.

The height of the convex portion is 0.5-0.8mm.

The rubber jacket layer two ends are provided with Silencing groove.

The radial section of the Silencing groove from notch to bottom land at be gradually reduced.

Said inner tube, outer tube are made by magnesium alloy material.

The pedestal includes installing outer tube, is connected to the base for installing outer tube side part, and outer tube sleeve is loaded in installation outer tube.

The utility model is using composite high resistant damping magnesium alloy in combination with traditional rubber damping technology, and that what is produced is suitable For the damped products of vehicle vibration damping Noise Reduction.The utility model provides a kind of magnesium alloy rubber composite vehicle vibration damping Part, by by high-damping metal material magnesium alloy together with viscoelastic building rubber compound, by the metal and rubber of high-damping Material collective effect, plays vibration and noise reducing function.The high damping characteristic that the utility model passes through magnesium alloy, from engine luggine source Set about, fundamentally directly absorb the vibration for eliminating a part of engine, then the vibration of a part will be eliminated, pass through Rubber deformation is delivered on vehicle body again after absorbing, and because the heat dispersion of metal is far above elastomeric material, more can be by rubber The heat that energy-absorbing deformation is produced is dispersed in air rapidly, simultaneously because ensureing that the structure of the two is steady using compound constant structure Qualitative and reliability, while vibration and noise reducing performance is improved, can more improve the service life of vibration-damped component, reduce automobile and use And cost of upkeep.And because direct absorption eliminates a part of engine vibration of itself, so as in engine start and urgency The moment of faster rotational speed during acceleration, horizontal by vehicle acutely rocks vibration elimination.

Compared with existing vibration-damped component product, advantage of the present utility model is as follows：

1st, outer tube is replaced with into magnesium alloy material, and the thickness in the middle part of increasing, it is advantageous in that：Vehicle vibration damping part product makes Material is based on NR rubber, although good damping effect, but vibrates greatly, is replaced with magnesium alloy material, can reduce Automobile vibration in motion；

2nd, rubber jacket layer is reduced（Abbreviation rubber layer）Thickness, thickness reduces automobile and rocks in motion in 3-5mm；

3rd, 4 projections are increased on the outer tube outer wall of magnesium alloy material, raised height is in 0.5-0.8mm；Magnesium alloy material Matter outer tube individually only carries out thickness increase in the middle part of waist, and the vibration damping main body of existing vibration-damped component is transformed to into magnesium alloy by rubber layer, Rubber layer act as avoiding and buffering inner and outer pipes issuable collision in use, can be in the feelings for not reducing current effectiveness in vibration suppression Under condition, product strength is further improved, increase the service life of product, and outer tube is replaced with after magnesium alloy, magnesium alloy material The effect of powerful vibration damping and energy-absorbing can by the efficiency of vibration-damped component play incisively and vividly.

Description of the drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the side view of Fig. 1.

Specific embodiment

Fig. 1, in 2, vibration damping bush is arranged on vehicle frame by the base 1 of pedestal, and by inner tube 2 portions such as engine are bolted Part, the vibration of engine passes to outer tube 4 and assimilates after the weakening of rubber jacket layer 3, then is passed by the installation outer tube 5 of pedestal It is delivered on body structure, while the heat of the deformation energy-absorbing of rubber jacket layer 3 is dispersed in air, equally, vehicle body and road surface by outer tube 4 The vibration that contact is produced, is just delivered on the parts such as engine in a reverse order after weakened absorption.And engine exists Start and accelerate the reaction force of moment also directly to be assimilated by the rotary change of axial direction by rubber jacket layer 3, will not It is passed on vehicle body, so as to eliminate the horizontal of vehicle body vibration is acutely rocked.

Assembled by real vehicle, the rubber structure vibration-damped component traditional with former car carries out vibration damping fading rate contrast test, highlight The utility model more preferably vibration damping attenuation rate (amplitude and frequency), traditional rubber damping part is for itself vibration when engine operates There is no direct vibration-damping function, attenuation rate is 0, the single vibration-damping function of the positive transmission of vibration-damped component can only be relied on, and this practicality is new Type positive can not only transmit vibration damping, more can directly absorb vibration 40%, magnesium alloy automobile engine suspension vibration-damped component 750r/min Effective vibration damping more than 20% under idling operation, can more reach more than 80% attenuation rate under 1600~3000r/min operating modes, comprehensive to survey In examination, under time of engine low speed operating mode, because the big rigidity and high-damping of magnesium alloy metal can effectively suppress engine low The low frequency large-amplitude vibration that speed operating brings, than traditional rubber structure vibration-damped component vibration and noise reducing efficiency 4.5 times are improved, and are especially solved The engine that traditional rubber damping part of having determined cannot be eliminated accelerates suddenly the chronic disease of the horizontal violent swing for being brought.

Claims

1. a kind of vehicle vibration damping part, it is characterised in that：Including inner tube（2）, outer tube（4）, positioned at inner tube（2）And outer tube（4）Between Rubber jacket layer（3）, rubber jacket layer（3）Inwall and inner tube（2）Outer wall contacts, rubber jacket layer（3）Outer wall middle part is provided with recess, Outer tube（4）Inwall middle part is provided with the convex portion of contact corresponding with recess, rubber jacket layer（3）Outer wall two ends and outer tube（4）Inwall two End contacts, outer tube（4）Pedestal is set with outward.

2. vehicle vibration damping part according to claim 1, it is characterised in that：The recess is annular recess.

3. vehicle vibration damping part according to claim 1, it is characterised in that：The height of the convex portion is 0.5-0.8mm.

4. vehicle vibration damping part according to claim 1, it is characterised in that：The rubber jacket layer（3）Two ends are provided with Silencing groove.

5. vehicle vibration damping part according to claim 4, it is characterised in that：The radial section of the Silencing groove is from notch to groove Bottom is gradually reduced.

6. vehicle vibration damping part according to claim 1, it is characterised in that：The pedestal includes installing outer tube（5）, be connected to Outer tube is installed（5）The base of sidepiece（1）, outer tube（4）It is set in installation outer tube（5）It is interior.