CN105351425A - Double-cylinder shock absorber - Google Patents
Double-cylinder shock absorber Download PDFInfo
- Publication number
- CN105351425A CN105351425A CN201510983019.7A CN201510983019A CN105351425A CN 105351425 A CN105351425 A CN 105351425A CN 201510983019 A CN201510983019 A CN 201510983019A CN 105351425 A CN105351425 A CN 105351425A
- Authority
- CN
- China
- Prior art keywords
- piston
- piston rod
- valve
- periphery
- vibration damper
- 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
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Classifications
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/22—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with one or more cylinders each having a single working space closed by a piston or plunger
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (AREA)
Abstract
A double-cylinder shock absorber is characterized in that a piston rod (2) penetrates through a sealing assembly (1), a one-way valve (6) is mounted at one end of the piston rod (2), one end of a piston (7) is mounted at the end of the piston rod (2) and on the periphery of the one-way valve (6), an inner cylinder (5) is arranged at the end of the piston rod (2) and on the peripheries of the one-way valve (6) and the piston (7), a middle cylinder (4) is arranged on the periphery of the inner cylinder (5), a casing (3) is arranged on the periphery of the middle cylinder (4), and a valve seat (8), a shuttle valve (9), a compression valve assembly (10) and a rubber bushing assembly (11) are sequentially arranged at the other end of the piston (7). The double-cylinder shock absorber has good creative comfort and good turning performance.
Description
Technical field
The invention relates to the vibration damper that car, suv go-anywhere vehicle, minibus chassis are installed, and is specifically related to dual tube shock absorber.
Technical background
Along with the development and progress of auto age, to the driving of vehicle.Ride comfort and Safety performance require more and more higher.
In, the Chinese Central Television (CCTV) 13 channel has play the program of safety in by the end of September, 2014.Traffic police group and traffic safety expert are organized.Select representational national highway, the bend between provincial highway.Curved experiment was done with medium-to-high grade type car.Obtain conclusion 40/ kilometer of speed per hour and cross curved safety, 50/ kilometer of speed per hour has heartbeat sense of acceleration to feel, 60/ kilometer of speed per hour out of control (steering wheel rotation when crossing curved, tire can produce a drift angle and then produce steering force, this strength acts on roll center and center of gravity, then causes tare to shift.Strengthen vehicle body along with the increase of drift angle and the transfer of tare and produce rolling).
TV station, it is surprising that investigation statistics not to control the traffic accident quantity that the speed of a motor vehicle causes well in bend.People are informed by several traffic accident case.Education people.The curved performance of mistake of automobile in the market can not meet national conditions road.Drive with caution.
There is a common problem in the vibration damper (passive type) at home car used.Travelling comfort is better than curved poor performance.Or it is poor to cross the good travelling comfort of curved performance.This is the difficult problem that whole vibration damper industry is wanted to solve.
Summary of the invention
The technical problem that the invention will solve is to provide good, that curved performance the is good excessively active vibration damper of twin-tub of a kind of travelling comfort, to improve the technical order that curved performance crossed by vibration damper, and improves the travelling comfort of automobile.The performance of vibration damper is risen to automotive safety part index from single damping effect, the generation cutd down traffic accidents.
The technological scheme of the invention is: a kind of dual tube shock absorber, it is characterized in that, comprise black box (1), piston rod (2), shell (3), middle cylinder (4), inner casing (5), one-way valve (6), piston (7), valve seat (8), shuttle valve (9), compression valve assembly (10), rubber bushing assembly (11), piston rod (2) is provided with through black box (1), one of piston rod (2) is equipped with one-way valve (6), this head of described piston rod (2) and one-way valve (6) periphery are equipped with one of piston (7), this head of described piston rod (2) and one-way valve (6) and piston (7) periphery are provided with inner casing (5), inner casing (5) periphery is provided with middle cylinder (4), middle cylinder (4) periphery is provided with shell (3), the other end of piston (7) is provided with valve seat (8) successively, shuttle valve (9), compression valve assembly (10), rubber bushing assembly (11).
The invention travelling comfort is good, curved performance is good excessively.
The invention adjustable vibration damper internal pressure, has piston rod counterbalance spring because cross the support force of hollow, plays and keep car body balance effect.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of the invention.
Embodiment
Embodiment: a kind of dual tube shock absorber, it is characterized in that, comprise black box (1), piston rod (2), shell (3), middle cylinder (4), inner casing (5), one-way valve (6), piston (7), valve seat (8), shuttle valve (9), compression valve assembly (10), rubber bushing assembly (11), piston rod (2) is provided with through black box (1), one of piston rod (2) is equipped with one-way valve (6), this head of described piston rod (2) and one-way valve (6) periphery are equipped with one of piston (7), this head of described piston rod (2) and one-way valve (6) and piston (7) periphery are provided with inner casing (5), inner casing (5) periphery is provided with middle cylinder (4), middle cylinder (4) periphery is provided with shell (3), the other end of piston (7) is provided with valve seat (8) successively, shuttle valve (9), compression valve assembly (10), rubber bushing assembly (11).
Principle is described as follows:
When automobile turning along with the rotation of steering wheel, the angle of turn sensor on steering wheel sends parameter, the parameter of vehicle speed sensor, and have master controller process to amplifier result, amplifier is to servovalve instruction.
Close all passages of vibration damper inner carrier cylinder, locked piston rod, between wheel and vehicle body, vibration damper becomes supporting element.Stop spring-compressed, overcome the weight of centrifugal force skew.Therefore the distance (vehicle body sinks) on vehicle body and ground is controlled.
Due to left and right shock absorber piston cylinder pathway closure, lock piston after death.When the release reaction thrust due to the supported spring after weight offset is also locked by piston lever of reducer.(vehicle body thrust upwards) keeps vehicle body to cross curved front attitude turning.
According to the working principle of vibration damper, we improve vehicle shock absorber.
Vibration damper internal structure is made improvements, also can coordinate vibration damper servovalve, improve vibration damper performance.Can reach comfortable and handling, the Security of bend improves.
Vibration damper servovalve, by direction sensor, vehicle speed sensor, displacement transducer, braking sensor, according to different road surface, the different speed of a motor vehicle, bend etc., provides different parameters by servovalve amplifier.
The effect of vibration damper servovalve:
Automobile is crossed vehicle body in the process of hollow and is sunk.Become the attitude of double swerve.Reach the solution of the attitude of balance:
Cross hollow and cause the genetic analysis of rocking:
Support wheel and tare are springs.Because the weight=vehicle body of the compression distance of spring==vehicle body and ground level.
Impact force when hollow crossed by automobile time, the compression distance of spring changes.Support the power of vehicle body also in change.It is determine according to the quality of vibration damper control spring function that control impact force and vehicle body rock size.
In common vibration damper:
1. point compression valve and rebuilt valve form, and damping is fluid, and by valve block, flexible and gap length, produces force value.
2. vibration damper is according to different automobile types, the requirement of different vendor, arranges damping force value.
3. there is no the independent setting for crossing hollow parameter.
Therefore a lot of vehicle rocking on hollow road, the performance of size degree and vibration damper has relation.
Solution:
Automobile comfort level:
This vibration damper servovalve has real-time regulating mechanism, by displacement transducer, and the extension distance of detection springs.Calculate the decompression of spring supporting vehicle body.Provide parameter.By vibration damper servovalve.Adjustment vibration damper internal pressure has piston rod counterbalance spring because cross the support force of hollow, plays maintenance car body balance.Reach the effect of balance.
Bend crossed by automobile: when automobile is crossed curved, the effect of centrifugal force.Body gesture seriously offsets, and have impact on the handling and Security of automobile.
The genetic analysis of bend body sway:
Steering wheel rotation when crossing curved, tire can produce a drift angle and then produce steering force, and this strength acts on roll center and center of gravity, then causes tare to shift.Strengthen vehicle body along with the increase of drift angle and the transfer of tare and produce rolling.
When crossing bend, the supported spring of vehicle body and wheel is along with the increase of the speed of a motor vehicle and centrifugal force, and decrement increases, and causes spring to shorten.The distance on vehicle body and ground reduces, " weight=vehicle body of the compression distance==vehicle body of spring and ground level "
When crossing bend, due to the effect of centrifugal force, after tare offsets, the supported spring compression of another side, (amount of spring compression==weight) needs release, and therefore the reaction thrust of spring raises the distance of wheel and vehicle body.The curved attitude of mistake formed.At this moment the handling and poor stability of automobile.The speed of a motor vehicle controls bad.Traffic accident can be had time serious.
Solution:
When automobile turning along with the rotation of steering wheel, the angle of turn sensor on steering wheel sends parameter, and the parameter of vehicle speed sensor has master controller process to amplifier result, and amplifier is to servovalve instruction.
Close all passages of vibration damper inner carrier cylinder, locked piston rod.Between wheel and vehicle body, vibration damper becomes supporting element.Stop spring-compressed, overcome the weight of centrifugal force skew.
Therefore the distance (vehicle body sinks) on vehicle body and ground is controlled.
Due to left and right shock absorber piston cylinder pathway closure, lock piston after death.When the release reaction thrust due to the supported spring after weight offset is also locked by piston lever of reducer.By vehicle body thrust upwards, vehicle body is kept to cross curved front attitude.
Example: the technical parameter according to vibration damper servovalve works as voltage 12V, maximum current 1.8A rated pressure 250bar, and as system pressure 250bar, piston diameter 30mm, during diameter of piston rod 24mm.
Show that cavity of resorption piston compression area be 4.52 square centimeters of epicoele piston areas is 4.93 square centimeters according to hydraulic principle radius x radius x3.14=area.
Draw according to above data, piston rod locked maximum, force support force 1130 kilograms of maximum recuperabilities 1232 kilograms
Change piston diameter and can draw different maximum support power.
The diameter changing piston rod can draw different recuperabilities.
Reduce stopping distance:
Vibration damper on market is by actual use experience.Performance quality can affect stopping distance.Solution;
When braking sensor detects that automobile processor when braking sends instruction " vibration damper servovalve " and adjusts vibration damper damping and add big wheel earth-grasping force.
Claims (1)
1. a dual tube shock absorber, it is characterized in that, comprise black box (1), piston rod (2), shell (3), middle cylinder (4), inner casing (5), one-way valve (6), piston (7), valve seat (8), shuttle valve (9), compression valve assembly (10), rubber bushing assembly (11), piston rod (2) is provided with through black box (1), one of piston rod (2) is equipped with one-way valve (6), this head of described piston rod (2) and one-way valve (6) periphery are equipped with one of piston (7), this head of described piston rod (2) and one-way valve (6) and piston (7) periphery are provided with inner casing (5), inner casing (5) periphery is provided with middle cylinder (4), middle cylinder (4) periphery is provided with shell (3), the other end of piston (7) is provided with valve seat (8) successively, shuttle valve (9), compression valve assembly (10), rubber bushing assembly (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510983019.7A CN105351425A (en) | 2015-12-24 | 2015-12-24 | Double-cylinder shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510983019.7A CN105351425A (en) | 2015-12-24 | 2015-12-24 | Double-cylinder shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105351425A true CN105351425A (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510983019.7A Pending CN105351425A (en) | 2015-12-24 | 2015-12-24 | Double-cylinder shock absorber |
Country Status (1)
| Country | Link |
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| CN (1) | CN105351425A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704457A (en) * | 2016-12-27 | 2017-05-24 | 胡满航 | Automobile shock absorber assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202013010266U1 (en) * | 2013-11-14 | 2014-02-11 | Chung-Hsing Wu | Hydraulic damping device |
| CN203477164U (en) * | 2013-10-16 | 2014-03-12 | 博尔德汽车零部件(海宁)有限公司 | Barrel type automobile shock absorber |
| CN103775557A (en) * | 2013-01-31 | 2014-05-07 | 江西巨晟实业有限公司 | Adjustable shock absorber |
| CN104265824A (en) * | 2014-09-25 | 2015-01-07 | 陈菊芳 | Shock absorber |
| CN204610669U (en) * | 2015-03-03 | 2015-09-02 | 刘春暄 | The active vibration damper of twin-tub |
| CN205371435U (en) * | 2015-12-24 | 2016-07-06 | 刘春暄 | Double -cylinder shock -damper |
-
2015
- 2015-12-24 CN CN201510983019.7A patent/CN105351425A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775557A (en) * | 2013-01-31 | 2014-05-07 | 江西巨晟实业有限公司 | Adjustable shock absorber |
| CN203477164U (en) * | 2013-10-16 | 2014-03-12 | 博尔德汽车零部件(海宁)有限公司 | Barrel type automobile shock absorber |
| DE202013010266U1 (en) * | 2013-11-14 | 2014-02-11 | Chung-Hsing Wu | Hydraulic damping device |
| CN104265824A (en) * | 2014-09-25 | 2015-01-07 | 陈菊芳 | Shock absorber |
| CN204610669U (en) * | 2015-03-03 | 2015-09-02 | 刘春暄 | The active vibration damper of twin-tub |
| CN205371435U (en) * | 2015-12-24 | 2016-07-06 | 刘春暄 | Double -cylinder shock -damper |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704457A (en) * | 2016-12-27 | 2017-05-24 | 胡满航 | Automobile shock absorber assembly |
| CN106704457B (en) * | 2016-12-27 | 2018-12-07 | 浙江天力机车部件有限公司 | A kind of automobile absorber assembly |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160224 |
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| WD01 | Invention patent application deemed withdrawn after publication |