CN104613124B - A kind of double-piston current transformation vibration damper - Google Patents
A kind of double-piston current transformation vibration damper Download PDFInfo
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- CN104613124B CN104613124B CN201510058175.2A CN201510058175A CN104613124B CN 104613124 B CN104613124 B CN 104613124B CN 201510058175 A CN201510058175 A CN 201510058175A CN 104613124 B CN104613124 B CN 104613124B
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- piston
- inner core
- chamber
- working chamber
- annular
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- 230000009466 transformation Effects 0.000 title claims abstract description 23
- 239000012530 fluid Substances 0.000 claims abstract description 22
- 238000007667 floating Methods 0.000 claims abstract description 18
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims description 11
- 239000003921 oil Substances 0.000 claims description 6
- 238000013016 damping Methods 0.000 abstract description 26
- 239000000725 suspension Substances 0.000 abstract description 5
- 238000001556 precipitation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 2
- 230000005684 electric field Effects 0.000 description 5
- 239000000428 dust Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
- F16F9/3242—Constructional features of cylinders of cylinder ends, e.g. caps
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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
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
-
- 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
- F16F9/3257—Constructional features of cylinders in twin-tube type devices
-
- 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
- F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
-
- 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
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/532—Electrorheological [ER] fluid dampers
Abstract
The invention discloses a kind of double-piston current transformation vibration damper, there is the continuously adjustable function of damping, be mainly used in the semi-active control of vehicle suspension system.This vibroshock mainly includes piston, annular piston, inner/outer tube, common valve, tapered gaps, plenum chamber, positive plate, piston is completely divided into lower work chamber inner core, normal hydraulic oil is filled in upper working chamber, hydraulic oil is flowed between inner core and annular chamber by common valve, ER fluid it is full of in lower working chamber, ER fluid is flowed between inner core and annular chamber by tapered gaps, and the optimal damping power needed for vibroshock is produced by tapered gaps and common valve.Vibroshock arranges floating piston, in vibroshock work process, change with the upper working chamber inner fluid volume that compensating piston bar causes in motor process, tapered gaps is set bottom vibroshock, while controllable damping force is provided, it is possible to make ER fluid easily quickly eliminate precipitation in the course of the work.
Description
Technical field
The present invention relates to a kind of vibroshock, be specifically related to a kind of double-piston current transformation vibration damper, be mainly used in the semi-active control of wheeled vehicle, be also used for other vibration insulating systems.
Background technology
Traditional automobile suspension system is a kind of passive vibration insulating system, the flexible member of this system and the performance of vibroshock is uncontrollable, and particularly the damping of vibroshock is uncontrollable.It major downside is that a certain working condition is only desirable by damping that vibroshock provides, for the operating mode away from regulation working condition, do not reach desirably damping and effectiveness in vibration suppression.Obviously, ideally so-called active or semi-active suspension system, now its flexible member and the performance of damping element all can be adjusted and control, namely it can according to different pavement conditions, the parameter of conversion flexible member and damping element, the ride comfort and the safety that make vehicle are harmonious, reach optimum state.
Compared with traditional vibroshock, the feature of current transformation vibration damper is that its damping force not only depends on piston movement speed, and mainly through controlling the voltage that applies to control the size of damping force, current transformation vibration damper is the desirable damping element of semi-active suspension, it utilizes character after the surrender of ER fluid, the i.e. controllability of yield stress, damping parameter can be adjusted in real time, current transformation vibration damper is not provided with the choke valve that orifice size is variable, and control the device of throttle orifice aperture, its simple in construction, only need voltage signal can control damping in certain operating temperature range, dynamic response is fast, energy consumption is low, it is substitute being preferably selected of conventional damper.
The existing structural design about current transformation vibration damper at present, but common configuration is complicated, and thermal diffusivity is bad, and majority is by voltage-drop loading to piston rod, there is instability, the problem such as unreliable in the mode of powering up, and the ER fluid sedimentation problem existed is not solved by especially.
Summary of the invention
The present invention is directed to the deficiency that existing current transformation vibration damper exists, there is provided a kind of simple in construction, the mode that powers up is reliable and stable, can solve ER fluid precipitation, and the double-piston current transformation vibration damper that thermal diffusivity is good, economy is high, it is by adjusting different electric field intensity sizes, it is achieved the timely adjustment of absorber damping force.
It is an object of the invention to be achieved through the following technical solutions:
A kind of double-piston current transformation vibration damper, including inner core, urceolus, lower bottom base, upper end cover, positive plate, piston and piston rod, positioned by location insulation component after urceolus and inner core suit, inner core lower end is connected with positive plate, upper end is connected with location insulation component, threadeding with lower bottom base in urceolus lower end, urceolus upper end is with upper end cover also with threadeding, and piston rod has external vertical to stretch into connection piston in inner core；Inner core is divided into upper working chamber and lower working chamber by piston, filling normal hydraulic oil in upper working chamber, upper working chamber top inner tube wall is provided with common valve, fills ER fluid in lower working chamber, it is provided with positive plate bottom lower working chamber, between positive plate and lower bottom base, leaves tapered gaps；Being formed with annular chamber between inside and outside cylinder, be provided with annular piston annular chamber is divided into upper and lower two regions in annular chamber, lower area is connected with the lower working chamber of inner core by tapered gaps；Upper area, to be fixed on spacing ring on inside and outside barrel for boundary, is divided into annular piston moving region and floating piston moving region；Floating piston moving region comprises the floating piston being positioned at above spacing ring, and floating piston is arranged above plenum chamber, and the annular piston moving region above annular piston is connected with the upper working chamber of inner core by common valve.
Described a kind of double-piston current transformation vibration damper, positive plate connects positive source by inner tube wall, the combination of upper oil-filled throttle, seated connection power cathode of going to the bottom.
Described a kind of double-piston current transformation vibration damper, plenum chamber is placed in vibroshock top, and is provided with charging valve combination, and charging valve combination the inner passes into plenum chamber through upper end cover and location insulation component, and the QI KOU of charging valve combination outer end installs locking nut.
Double-piston current transformation vibration damper provided by the invention, is divided into upper and lower two parts by the annular piston arranged by the annular chamber between inner/outer tube, and its function is completely separate normal hydraulic oil and ER fluid；Common valve is set on inner core top, normal hydraulic oil produces basis damping force by common valve；Between inner core bottom positive plate and lower bottom base, form tapered gaps runner, by controlling the voltage at tapered gaps two ends, ER fluid when by tapered gaps, produce controllable damping force；Positive plate connects positive source by inner tube wall, the combination of upper oil-filled throttle, and bottom end cover connects power cathode, and power work safety and stability is reliable；Inner/outer tube spacing is relatively big, and thermal diffusivity is good.
Accompanying drawing explanation
Fig. 1 is double-piston current transformation vibration damper structural representation；
The support bar axle that Fig. 2 is between double-piston current transformation vibration damper positive plate and lower bottom base measures intention；
Fig. 3 is the structural representation of the common valve of double-piston current transformation vibration damper, and wherein (a) is left view, and (b) is top view.
In figure:
1-connects ring, 2-lower bottom base, 3-positive plate, 4-inner core, 5-urceolus, 6-piston, 7-annular piston, 8-piston rod, 9-common valve, 10-floating piston, 11-positions insulation component, 12-upper end cover, 13-seals lid, the upper oil-filled throttle combination of 14-, 15-locking nut, and 16-charging valve combines, 17-plenum chamber, 18-spacing ring, 19-annular chamber, 20-hydraulic oil, 21-ER fluid, 22-dust cover, the combination of oil-filled throttle, 24-tapered gaps under 23-
Detailed description of the invention
Referring to Fig. 1 to Fig. 3, double-piston current transformation vibration damper, including inner core 4, urceolus 5, annular piston 7, positive plate 3, lower bottom base 2, upper end cover 12, dust cover 22, location insulation component 11, piston 6 and piston rod 8.Being positioned by location insulation component 11 after inner core 4 and urceolus 5 suit, it is outside that dust cover 22 covers on urceolus 5, and is connected with piston rod upper end.Inner core 4 lower end and positive plate 3 is connected, and upper end is connected with location insulation component 11, and urceolus 5 lower end and lower bottom base 2 are threaded connection, it is possible to the size of adjustment tapered gaps is with the requirement to vibroshock of the applicable different automobile types.Urceolus 5 upper end and upper end cover 12 are also with threaded.
Piston rod 8 is put in connection piston 6 in inner core 4 by external vertical, and inner core 4 is divided into upper and lower two working chambers by piston 6.The under-filled ER fluid 21 of piston 6, is called lower working chamber, and the bottom in this region is provided with positive plate 3, is uniformly distributed support bar between positive plate 3 and lower bottom base 2, to support positive plate 3 and inner core 4.Leaving certain tapered gaps 24 between positive plate 3 and lower bottom base 2, ER fluid 21 flows through from tapered gaps 24.Piston 6 top is full of normal hydraulic oil 20, is called working chamber, and top inner core 4 wall in this region is provided with common valve 9.
Forming suitable annular chamber 19 between inside and outside cylinder, be provided with annular piston 7 in annular chamber 19, annular chamber 19 is divided into upper and lower two regions, lower area is connected with the lower working chamber of inner core 4 by tapered gaps 24.The spacing ring 18 installed on inner/outer tube 5 wall again is for boundary, the upper area of annular chamber 19 is divided into annular piston 7 moving region of lower section and floating piston 10 moving region of top, annular piston 7 includes annular piston 7 in moving region, being provided with floating piston 10 in floating piston 10 moving region, floating piston 10 is positioned at above spacing ring 18.Top, annular piston 7 moving region is connected with the upper working chamber of inner core by common valve 9.In floating piston 10 moving region, being set to plenum chamber 17 above floating piston 10, charging valve combination 16 is installed on plenum chamber 17 top；Charging valve combination 16 is inner passes into plenum chamber 17 through upper end cover 12 and location insulation component 11, and the QI KOU of outer end is installed locking nut 15.
Annular chamber 19 between inner/outer tube 5 is divided into upper and lower two regions by annular piston 7 by this double-piston current transformation vibration damper, and its function is entirely isolated normal hydraulic oil 20 and ER fluid 21；Common valve 9 is set on inner core 4 top, normal hydraulic oil 20 produces basis damping force by common valve 9；Between inner core 4 bottom positive plate 3 and lower bottom base 2, form tapered gaps 24 runner, by controlling the voltage at tapered gaps 24 two ends, ER fluid 21 produce controllable damping force by tapered gaps 24；Positive plate 3 connects positive source by inner core 4 wall, upper oil-filled throttle combination 23, and lower bottom base 2 connects power cathode, and power work safety and stability is reliable；Inner/outer tube 5 spacing is relatively big, and thermal diffusivity is good.
The operation principle of this double-piston current transformation vibration damper:
Certain tapered gaps 24 is left between positive plate 3 and lower bottom base 2, ER fluid 21 flows through from tapered gaps 24, the positive plate 3 at tapered gaps 24 two ends is connected with the two poles of the earth of lower bottom base 2 with high voltage power supply, tapered gaps 24 place is made to form electric field, apparent viscosity and the shearing resistance yield stress of current liquid 21 is changed, thus produce controlled pressure reduction at tapered gaps 24 two ends by controlling electric field intensity.Being filled with the gas of certain pressure in plenum chamber 17 above floating piston 10, make floating piston 10 move up and down with piston 6, its main purpose is the change of the lower work chamber fluid volume that compensating piston bar 8 motion causes.When the piston 6 of vibroshock moves up and down, ER fluid 21 is by tapered gaps 24, flow between lower working chamber and annular chamber 19, tapered gaps 24 two ends produce controlled pressure reduction, so that vibroshock produces damping force, as controllable damping force, change ER fluid 21 apparent viscosity by tapered gaps and shearing resistance yield stress by controlling to be applied to the electric field intensity of tapered gaps 24, thus controlling the pressure differential at tapered gaps 24 two ends, and then obtain suspension optimal damping power.Normal hydraulic oil 20, by common valve 9, flows between inner core 4 and annular chamber 19, and the two ends of common valve 9 produce pressure reduction, so that vibroshock produces damping force, as basic damping force.Piston is in the superposition that the damping force upheld and be subject in compression travel is all basic damping force and controllable damping force.When piston 6 moves downward, ER fluid 21 is flowed into annular chamber 19 by tapered gaps 24 by inner core 4, and normal hydraulic oil 20 is flowed into inner core 4 by common valve 9 by annular chamber 19, due to the existence of two parts pressure reduction, such piston 6 base pressure, more than top pressure, makes piston 6 move downward and is obstructed；In piston 6 moves upward, ER fluid 21 is flowed into inner core 4 by tapered gaps 24 by annular chamber 19, normal hydraulic oil 20 is flowed into annular chamber 19 by common valve 9 by inner core 4, also due to the existence of two parts pressure reduction makes piston 6 top pressure more than base pressure, makes piston 6 move upward and is obstructed.Therefore, piston 6 moves up and down all by consuming the vibrational energy of wheel and vehicle frame, makes vibration disappearance, and the ability of vibroshock dissipation vibrational energy can be changed by the control to electric field strength.
Claims (3)
1. a double-piston current transformation vibration damper, including inner core, urceolus, lower bottom base, upper end cover, positive plate, piston and piston rod, positioned by location insulation component after urceolus and inner core suit, inner core lower end is connected with positive plate, upper end is connected with location insulation component, threadeding with lower bottom base in urceolus lower end, urceolus upper end is with upper end cover also with threadeding, and piston rod is stretched into connection piston in inner core by external vertical；It is characterized in that, inner core is divided into upper working chamber and lower working chamber by piston, fills normal hydraulic oil in upper working chamber, upper working chamber top inner tube wall is provided with common valve, fill ER fluid in lower working chamber, be provided with positive plate bottom lower working chamber, between positive plate and lower bottom base, leave tapered gaps；Being formed with annular chamber between inside and outside cylinder, be provided with annular piston annular chamber is divided into upper and lower two regions in annular chamber, lower area is connected with the lower working chamber of inner core by tapered gaps；Upper area, to be fixed on spacing ring on inside and outside barrel for boundary, is divided into annular piston moving region and floating piston moving region；Floating piston moving region comprises the floating piston being positioned at above spacing ring, and floating piston is arranged above plenum chamber, and the annular piston moving region above annular piston is connected with the upper working chamber of inner core by common valve.
2. a kind of double-piston current transformation vibration damper described in claim 1, it is characterised in that described positive plate connects positive source by inner tube wall, the combination of upper oil-filled throttle, seated connection power cathode of going to the bottom.
3. a kind of double-piston current transformation vibration damper described in claim 1, it is characterized in that, described plenum chamber top is provided with charging valve combination, and charging valve combination the inner passes into plenum chamber through upper end cover and location insulation component, and the QI KOU of charging valve combination outer end installs locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510058175.2A CN104613124B (en) | 2015-02-04 | 2015-02-04 | A kind of double-piston current transformation vibration damper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510058175.2A CN104613124B (en) | 2015-02-04 | 2015-02-04 | A kind of double-piston current transformation vibration damper |
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| CN104613124A CN104613124A (en) | 2015-05-13 |
| CN104613124B true CN104613124B (en) | 2016-07-13 |
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| CN105351431B (en) * | 2015-12-17 | 2016-05-25 | 西安科技大学 | A kind of confession energy type vehicle damper and control method thereof |
| CN106907422B (en) * | 2015-12-23 | 2019-04-19 | 上海汽车集团股份有限公司 | Electrorheological fluid vibration damper and its control method, control unit, ECU and automobile |
| CN106763443A (en) * | 2016-12-08 | 2017-05-31 | 平高集团有限公司 | Buffer and the operating mechanism using the buffer |
| CN108825598A (en) * | 2018-07-12 | 2018-11-16 | 芜湖辉林奥远自动化科技有限公司 | A kind of mobile power docking facilities of plate |
| JP7034323B2 (en) * | 2018-09-25 | 2022-03-11 | 日立Astemo株式会社 | Suspension control device |
| DE102018220628B4 (en) * | 2018-11-29 | 2022-08-18 | Thyssenkrupp Ag | Vibration damper and vehicle |
| DE102018220630B4 (en) * | 2018-11-29 | 2024-01-11 | Thyssenkrupp Ag | Adjustable vibration damper and vehicle with such a vibration damper |
| CN110195760A (en) * | 2019-06-14 | 2019-09-03 | 四川大学 | A kind of novel piezo-electric ceramic and ER fluid are from coupling damper |
| DE102021100029A1 (en) * | 2020-05-26 | 2021-12-02 | H. Rottländer & A. Seuthe GbR (vertretungsberechtigter Gesellschafter: Hendrik Rottländer, 45277 Essen) | Locking system |
| CN112096087B (en) * | 2020-09-10 | 2021-04-27 | 新昌县籍服机械有限公司 | Comfortable handheld vibrator convenient to operate |
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2015
- 2015-02-04 CN CN201510058175.2A patent/CN104613124B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08231975A (en) * | 1995-02-24 | 1996-09-10 | Bridgestone Corp | Oily medium for electroviscous fluid and electroviscous fluid using the same |
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