CN107061582A - A kind of vehicle shock absorber bushing - Google Patents

A kind of vehicle shock absorber bushing Download PDF

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Publication number
CN107061582A
CN107061582A CN201610917881.2A CN201610917881A CN107061582A CN 107061582 A CN107061582 A CN 107061582A CN 201610917881 A CN201610917881 A CN 201610917881A CN 107061582 A CN107061582 A CN 107061582A
Authority
CN
China
Prior art keywords
outer tube
shock absorber
magnesium alloy
inner tube
lug boss
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.)
Pending
Application number
CN201610917881.2A
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Chinese (zh)
Inventor
宋彭川
钱昌平
王智慧
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.)
Nanzhang Fuyuanding Aviation Equipment Parts Co Ltd
Original Assignee
Nanzhang Fuyuanding Aviation Equipment Parts 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 Nanzhang Fuyuanding Aviation Equipment Parts Co Ltd filed Critical Nanzhang Fuyuanding Aviation Equipment Parts Co Ltd
Priority to CN201610917881.2A priority Critical patent/CN107061582A/en
Publication of CN107061582A publication Critical patent/CN107061582A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00Springs
    • F16F1/36Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/38Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Vibration Dampers (AREA)

Abstract

A kind of vehicle shock absorber bushing, including inner tube, outer tube, rubber jacket layer;Rubber jacket layer inwall bag invests and lug boss is provided with the middle part of inner tube outer surface, rubber jacket layer, and outer tube is located at outside lug boss, and lug boss is provided with recess, and outer tube wall is provided with the convex portion being in contact with recess.Thickness in the middle part of present invention increase magnesium alloy material outer tube, it is advantageous in that thickness and interior ligament in the middle part of magnesium alloy material outer tube are small, automobile is reduced to rock in motion, the thickness of magnesium alloy material outer tube end and inner tube gap-ratio middle part are bigger than normal, automobile outer tube when reversing traveling is reduced to collide with inner tube, be conducive to the bonding of inner tube and outer tube simultaneously, bonding strength is improved more than 30%.The present invention has the advantages that good damping property, good heat dissipation, service life cycle are long.

Description

A kind of vehicle shock absorber bushing
Technical field
The invention belongs to vehicle vibration damping noise reduction field, a kind of specifically vehicle shock absorber bushing.
Background technology
Vehicle shock absorber bushing, also referred to as shock absorber of automobile suspension bushing, with engine mounting vibration-damped component, steering gear vibration damping Multiple parts such as part, cushion blocking, shock-reducing sleeve, damping frame, belong to a part for car shock mitigation system, automobile is in startup Afterwards, either initial idling is still run at high speed, due to the friction on tire and road surface, and road bump etc. can all produce vibration, especially It will produce vibration when being automobile engine itself operating and form vibration source, so as to trigger noise, these vibrations can all be caused The service life reduction of auto parts and components, for the controllability of driving, the comfortableness of seating and the security of vehicle have very Influence greatly, therefore vehicle vibration damping technology is arisen at the historic moment.
Traditional vehicle vibration damping technology is to use caoutchouc elasticity deformation, by the vibration energy absorption part of vibration source and shock insulation It is delivered to vehicle body again afterwards, so as to realize part vibration and noise reducing, in the process, the elastic deformation of rubber can produce rapidly substantial amounts of Heat, but the heat dispersion of rubber itself is poor, especially under high-temperature condition of the operating ambient temperature more than 80 DEG C, then by To certain load force, the shock absorber bushing that old-fashioned elastomeric material makes is poor due to heat aging property, can rapidly produce old Change, damage just generally occurred using 3~4 months and scrap, it is necessary to change, therefore rubber shock absorber bushing is become in order to which rapid wear easily consumes Part, brings more troubles again along with frequently changing, such as adds automobile use cost, the frequency of auto parts and components to car owner Numerous dismounting will also result in hidden danger for security, therefore, and be badly in need of one kind high temperature resistant load resistance and can more can be carried out in time Radiating, so as to ensure the longer life cycle of 3~5 years, while ensureing that cost is relatively low, can largely spread to complete set train again Shock absorber bushing product in type.
The content of the invention
The invention aims to overcome the above-mentioned deficiency of prior art, and a kind of vehicle shock absorber bushing is provided, by force Degree height, good damping property, good heat dissipation, service life cycle are long.
The technical scheme is that:Including inner tube, outer tube, rubber jacket layer;Rubber jacket layer inwall bag invests inner tube appearance Face, lug boss is provided with the middle part of rubber jacket layer, and outer tube is located at outside lug boss, and lug boss is provided with recess, outer tube wall be provided with it is recessed The convex portion that portion is in contact.
The raised height of the outer tube wall is 0.5-0.8mm.
The chamfer of outer tube two.
The angle of the chamfering is 15-20 °.
The lug boss two ends of the rubber jacket layer are provided with Silencing groove.
Said inner tube, outer tube are made by magnesium alloy.
The outer tube outer wall is provided with more than two convex tendons, convex tendon and installation pedestal elastic conjunction during installation.
The present invention is combined using composite high resistant damping magnesium alloy with the polymer rubber being newly formulated, it is adaptable to which automobile subtracts Shake the shock absorbing bushing product of device.
The invention provides a kind of high temperature resistant magnesium alloy rubber composite vehicle shock absorber, by by high-damping metal material Material magnesium alloy is combined with new formula thermal-ageing-resistant rubber, and magnesium alloy is the conjunction that other elements composition is added by base of magnesium Gold.It is characterized in:Density is small(1.8g/cm3 magnesium alloys or so), specific strength is high, and, good heat dissipation bigger than modulus of elasticity, absorb shock resistance is good, The load-carrying ability that withstands shocks is bigger than aluminium alloy, and the corrosive nature of resistance to organic matter and alkali is good.By the high-damping of magnesium alloy, metal High cooling efficiency and thermal-ageing-resistant rubber material collective effect, play vibration-damping function.Although the metal part of conventional damper Certain auxiliary heat dissipation effect can be played, but vibrational energy can not be absorbed, and the magnesium alloy materials that this shock absorber is used, radiating Relatively with having absolute advantage for other alloys, contrasted by taking most common aluminium alloy as an example:According to formula:Q=dvC △ t wherein Q-heats;D=proportion;V=volume;C=specific heat capacity;△t =(t1-t2)The temperature of change;When same volume and shape The magnesium alloy and aluminium alloy of shape, when receiving identical heat Q, the temperature ratio of the two change is:△t/△t=2.74x0.23/ 1.81x1.05=1/3;I.e. magnesium alloy is the 1/3 of aluminium alloy;Magnesium alloy thermal conductivity factor 54W/mk;Aluminium alloy thermal conductivity factor 100W/ mk;One times of difference.Mean the radiator of the magnesium alloy and aluminum alloy materials for same volume and shape, the heat of certain thermal source production Amount(Temperature)Magnesium alloy is easier to be delivered to the speed at top by fin root than aluminium alloy, and top more easily reachs high temperature. That is the radiator root of aluminum alloy materials and the temperature difference at top, the radiator than magnesium alloy materials are small.This means closed by magnesium The air themperature and the air themperature temperature gap at top for the fin root that golden material makes, than dissipating that aluminum alloy materials make Backing is big, therefore accelerates the diffusion convection current of radiator inner air, improves radiating efficiency.Therefore, it is mutually synthermal, magnesium alloy The radiating time is also without the half of aluminium alloy.
Simultaneously, the proportion of magnesium alloy belongs to most the lighter in all structure alloys, therefore, is not reducing parts Intensity under, the weight of parts can be mitigated.The specific strength of magnesium alloy apparently higher than aluminium alloy and steel, specific stiffness and aluminium alloy and Steel is suitable.In elastic range, when magnesium alloy is by shock loading, other metals of the energy ratio of absorption are bigger, so magnesium alloy With good antidetonation noise abatement performance.Under same load, damping is 100 times of aluminium, 300~500 times of titanium alloy.Use On automobile, in the case of car body strength is not reduced, more light-weighted purpose can reach.According to relevant research, used in automobile The 60% of fuel is consumed in automotive dead weight, and automotive dead weight often mitigates 10%, and its fuel efficiency can improve more than 5%;Automotive dead weight is every 100 kg are reduced, per 100 km oil consumption can reduce 0.7 L or so, CO2 2.5 g of discharge, year discharge can be reduced by often saving 1 L fuel Amount reduces more than 30%.So mitigating, influence of the vehicle weight to environment and the energy is very big, and the light weight chemical conversion of automobile necessarily becomes Gesture.
Magnesium alloy is used on vehicle shock absorber, due in elastic range, when magnesium alloy is by shock loading, absorbing The big half of energy ratio Al-alloy parts, with good damping property.Therefore magnesium alloy can not only play more preferable vibration damping and make With while the high temperature of elastomeric material part can also be absorbed, and by the superior thermal conductivity of magnesium alloy, heat being dispersed into rapidly In air, and newly match somebody with somebody the heat resistant performance of side elastomeric material, than the elastomeric material used before, also improve 20%~ 30%, two kinds of materials are added, and are formd the effect that 1+1 is more than 2, are made damping property more excellent, and service life improves 2~3 Times.
Magnesium alloy also has good regenerability:Magnesium alloy is different from plastics, it can simply regenerate use and not Reduce its mechanical performance, and plastics are difficult to use not reducing the regeneration of its mechanical performance.Magnesium alloy and other metal phase ratios, fusing point Low, specific heat is small, and the energy consumed when regenerating and melting is that new material manufactures the 4% of the consumed energy, therefore, is closed using magnesium Golden material, can't cause the selling at exorbitant prices of shock absorber, so as to influence the popularization and application of product, either high-end deluxe carmodel Or common people's vehicle of low side, can large-scale promotion use.
Compared with existing bushing product, it is also an advantage of the present invention that:
1st, outer tube is replaced with into magnesium alloy material, reduces rubber layer thickness, the thickness of rubber layer is in 1-2mm, and it is advantageous in that:Vapour The material that the shock absorbing bushing product of car shock absorber is used is the endurance of NR rubber, resistance to tearing, wear-resisting based on NR rubber Property is superior to other rubber, but hot air aging resistance is poor, the thermal temperature produced after automobile is in traveling more than 100 DEG C with On, the wearability of NR rubber will decline, and its life-span will shorten, therefore outer tube is replaced with into magnesium alloy material.
2nd, the thickness in the middle part of increase magnesium alloy material outer tube, end thickness and interior thickness angle are at 15-20 °, its benefit It is:Thickness and interior ligament in the middle part of magnesium alloy material outer tube is small, reduces automobile and rocks in motion;Magnesium alloy material outer tube The thickness of end and inner tube gap-ratio middle part are bigger than normal, reduce automobile outer tube and inner tube collision when reversing traveling, are conducive to simultaneously The bonding of inner tube and outer tube, makes bonding strength improve more than 30%;
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 The increase of outer tube thickness and the reduction of rubber layer thickness, all intensity to bushing have greatly improved, the outer tube of magnesium alloy material Outer wall on increased raised item, elastic conjunction effect can be played in an installation, recessed part can then play ventilation and heat work With.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is Fig. 1 side view.
Embodiment
In Fig. 1,2, shock absorber bushing is arranged on damper main body and vehicle body by outer tube 3, is connected to by outer tube 3 The parts such as tire suspension, the autologous vibration of vehicle body passes to rubber layer 2 after the weakening of outer tube 3 and assimilated, then passes through inner tube 1 It is delivered on body structure, while the heat that the elastic deformation of rubber layer 2 is produced is dispersed into air by inner tube 1 and outer tube 3, together Sample, vehicle body contacts the vibration produced with road surface, is just delivered on vehicle body miscellaneous part after absorption is weakened in a reverse order, Play Bidirectional damping function.

Claims (7)

1. a kind of vehicle shock absorber bushing, it is characterised in that:Including inner tube, outer tube, rubber jacket layer;Rubber jacket layer inwall bag is invested Lug boss is provided with the middle part of inner tube outer surface, rubber jacket layer, outer tube is located at outside lug boss, and lug boss is provided with recess, outer tube wall Provided with the convex portion being in contact with recess.
2. vehicle shock absorber bushing according to claim 1, it is characterised in that:The raised height of the outer tube wall is 0.5-0.8mm。
3. vehicle shock absorber bushing according to claim 1, it is characterised in that:The chamfer of outer tube two.
4. vehicle shock absorber bushing according to claim 1, it is characterised in that:The angle of the chamfering is 15-20 °.
5. vehicle shock absorber bushing according to claim 1, it is characterised in that:The lug boss two ends of the rubber jacket layer are set There is Silencing groove.
6. vehicle shock absorber bushing according to claim 1, it is characterised in that:Said inner tube, outer tube are by magnesium alloy system Into.
7. vehicle shock absorber bushing according to claim 1, it is characterised in that:The outer tube outer wall is provided with two with convex Muscle.
CN201610917881.2A 2016-10-21 2016-10-21 A kind of vehicle shock absorber bushing Pending CN107061582A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610917881.2A CN107061582A (en) 2016-10-21 2016-10-21 A kind of vehicle shock absorber bushing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610917881.2A CN107061582A (en) 2016-10-21 2016-10-21 A kind of vehicle shock absorber bushing

Publications (1)

Publication Number Publication Date
CN107061582A true CN107061582A (en) 2017-08-18

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109826890A (en) * 2019-02-20 2019-05-31 宁波吉利汽车研究开发有限公司 Bush Assembly and its assemble method, damper and vehicle
CN110466301A (en) * 2019-08-13 2019-11-19 南京金龙客车制造有限公司 A kind of damper bushing caging system
CN113431857A (en) * 2020-03-23 2021-09-24 现代自动车株式会社 Vibration isolation device for vehicle suspension and method of manufacturing the same

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0417996D0 (en) * 2004-08-12 2004-09-15 Minebea Co Ltd Bush
CN2795550Y (en) * 2005-05-16 2006-07-12 万向钱潮股份有限公司 Automobile shock reducer hanging ring with inner bush
CN200940650Y (en) * 2006-06-15 2007-08-29 万向钱潮股份有限公司 Engaged jointing head
CN201363382Y (en) * 2009-01-07 2009-12-16 书元机械企业(昆山)有限公司 Novel shock-proof bushing block
CN202140492U (en) * 2011-06-10 2012-02-08 中国第一汽车集团公司 Novel auxiliary frame suspension device
CN204572892U (en) * 2015-02-05 2015-08-19 安徽科源机械有限公司 A kind of lining of automobile front axle bulb assembly
CN204716848U (en) * 2015-06-19 2015-10-21 建新赵氏集团有限公司 A kind of automobile Top Crossbeam lining
CN205273081U (en) * 2016-01-15 2016-06-01 重庆长安汽车股份有限公司 Lateral thrust pole automobile body side bush
CN206145039U (en) * 2016-10-21 2017-05-03 南漳富元鼎航空器材配件有限公司 Vehicle shock absorber bush

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Publication number Priority date Publication date Assignee Title
GB0417996D0 (en) * 2004-08-12 2004-09-15 Minebea Co Ltd Bush
CN2795550Y (en) * 2005-05-16 2006-07-12 万向钱潮股份有限公司 Automobile shock reducer hanging ring with inner bush
CN200940650Y (en) * 2006-06-15 2007-08-29 万向钱潮股份有限公司 Engaged jointing head
CN201363382Y (en) * 2009-01-07 2009-12-16 书元机械企业(昆山)有限公司 Novel shock-proof bushing block
CN202140492U (en) * 2011-06-10 2012-02-08 中国第一汽车集团公司 Novel auxiliary frame suspension device
CN204572892U (en) * 2015-02-05 2015-08-19 安徽科源机械有限公司 A kind of lining of automobile front axle bulb assembly
CN204716848U (en) * 2015-06-19 2015-10-21 建新赵氏集团有限公司 A kind of automobile Top Crossbeam lining
CN205273081U (en) * 2016-01-15 2016-06-01 重庆长安汽车股份有限公司 Lateral thrust pole automobile body side bush
CN206145039U (en) * 2016-10-21 2017-05-03 南漳富元鼎航空器材配件有限公司 Vehicle shock absorber bush

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109826890A (en) * 2019-02-20 2019-05-31 宁波吉利汽车研究开发有限公司 Bush Assembly and its assemble method, damper and vehicle
CN110466301A (en) * 2019-08-13 2019-11-19 南京金龙客车制造有限公司 A kind of damper bushing caging system
CN113431857A (en) * 2020-03-23 2021-09-24 现代自动车株式会社 Vibration isolation device for vehicle suspension and method of manufacturing the same

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Application publication date: 20170818