CN104806676A - Pneumatic control damp-adjustable shock absorber - Google Patents
Pneumatic control damp-adjustable shock absorber Download PDFInfo
- Publication number
- CN104806676A CN104806676A CN201410036134.9A CN201410036134A CN104806676A CN 104806676 A CN104806676 A CN 104806676A CN 201410036134 A CN201410036134 A CN 201410036134A CN 104806676 A CN104806676 A CN 104806676A
- Authority
- CN
- China
- Prior art keywords
- valve assembly
- pneumaticpiston
- cylinder
- urceolus
- type circle
- 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
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
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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
- F16F9/3405—Throttling passages in or on piston body, e.g. slots
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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
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
Abstract
The invention relates to a part applied to an automobile suspension system, in particular to a pneumatic control damp-adjustable shock absorber. The pneumatic control damp-adjustable shock absorber comprises an oil storage cylinder, a bottom valve assembly, a pressure control valve assembly, a working cylinder, a middle cylinder, a piston valve assembly, a guider assembly and a piston rod, wherein the bottom valve assembly is matched with the lower end of the working cylinder and arranged at the bottom of the oil storage cylinder, the piston valve assembly is matched with a piston rod through threads and arranged in the working cylinder, the outer edge of the piston valve assembly is in contact with the inner side edge of the working cylinder to form a moving pair, motive oil seal is formed on the contact face, the guider assembly is arranged at the upper ends of the oil storage cylinder and the working cylinder and are matched with the inner edges of the oil storage cylinder and the working cylinder respectively to form static oil seal. The pneumatic control damp-adjustable shock absorber is simple in structure, adjustable in damp and capable of well ensuring that damp characteristic of suspension system changes with change of vehicle running situation and can further give consideration to automobile comfort and control stability.
Description
Technical field
What the present invention relates to is a kind of component be applied in automobile suspension system, particularly be a kind of vibration damper of damping-force adjustable in vehicle suspension system.
Background technique
Current, the vibration damper that passive suspension is used, the size of its damping depends on the flexible size of each valve member valve block group; Once after each valve block group adjustment is installed, the damping characteristic of each valve member of this vibration damper and the damping property of vibration damper are also just determined, because its damping is non-adjustable, so can not ensure that the damping characteristic of suspension system changes with the change of running conditions of vehicle well, travelling comfort and the control stability of automobile can not be taken into account simultaneously, vehicle performance is had a strong impact on.
Summary of the invention
The object of the invention is to provide a kind of simple and reasonable, damping is adjustable, can ensure that the damping characteristic of suspension system changes with the change of running conditions of vehicle well, the air pressure of the travelling comfort and control stability that simultaneously can also take into account automobile controls ride control shock absorber.
The object of the present invention is achieved like this, this vibration damper comprises oil storage cylinder, bottom valve assembly, Stress control valve assembly, clutch release slave cylinder, middle cylinder, piston valve assembly, guider assembly and piston rod, described bottom valve assembly coordinates with clutch release slave cylinder lower end and is placed in the bottom of oil storage cylinder, piston valve assembly to be coordinated with piston rod by screw thread and is placed in clutch release slave cylinder inside, piston valve assembly outward edge contacts with clutch release slave cylinder inside edge and forms sliding pair and surface of contact defines motive sealing for fluid, guider assembly is placed in the upper end of oil storage cylinder and clutch release slave cylinder and the static seal formed fluid that matches with oil storage cylinder and clutch release slave cylinder inward flange respectively, middle cylinder is matched with clutch release slave cylinder outer surface by O type circle, have opening on the upside of clutch release slave cylinder to communicate with middle cylinder, a horn mouth is outwards had on the downside of middle cylinder, matched with the horn mouth of middle cylinder by O type circle in Stress control valve assembly lower end, Stress control valve assembly is connected with oil storage cylinder by welding.
Described Stress control valve assembly 3 comprises welding urceolus, connect base, pneumaticpiston urceolus, O type circle I, valve body gland, O type circle II, O type circle III, pneumatic joint, pneumaticpiston, O type circle IV, spool, valve ball and O type circle V, described pneumatic joint is connected with valve body gland 5 by screw thread, valve body gland with weld urceolus and be connected and push down pneumaticpiston urceolus downwards, pneumaticpiston urceolus outward edge is contacted with welding urceolus inward flange and is sealed by O type circle I, connection base pushed down downwards by pneumaticpiston urceolus, connection base is contacted with middle cylinder horn mouth and is sealed by O type circle V, connecting base makes the fluid of middle cylinder can feed pressure control valve assembly by oil inlet hole a, connecting base makes fluid can get back to oil storage cylinder by outflow pressure control valve assembly 3 by oil outlet b, O type circle III is provided with between valve body gland and pneumaticpiston urceolus, pneumaticpiston outward edge is contacted with pneumaticpiston urceolus inward flange and forms sliding pair and sealed by O type circle II, valve body gland, hyperbaric chamber c is formed between pneumaticpiston urceolus and pneumaticpiston three, pneumaticpiston and pneumaticpiston urceolus form atmospheric gas chamber e, normal pressure air cavity e leads to overpressure vent d and is communicated with ambient atmosphere, pneumaticpiston pushes down spool downwards, spool outward edge and pneumaticpiston urceolus interior side contacts are formed sliding pair and are sealed by O type circle IV, valve ball is pushed down under spool, valve ball blocks the oil inlet hole a connecting base lower end downwards.
The present invention has the following advantages and good effect:
1, vibration damper of the present invention adopts triplex structure, and outermost is oil storage cylinder, and the inside is clutch release slave cylinder, and centre is middle cylinder.When vibration damper stretching or compression movement, fluid all will flow into middle cylinder from clutch release slave cylinder, finally enters oil storage cylinder via Stress control valve assembly.The gas of certain pressure can be filled with to the high pressure air cavity in pressure controlled valve by pneumatic joint, gas pressure acts on the oil inlet hole of Stress control valve assembly by pneumaticpiston, spool and valve ball, makes must to reach certain pressure from the fluid of oil inlet hole feed pressure control valve assembly and just can back down valve ball and via oil outlet off-load.So, the oil liquid pressure of vibration damper inside can be controlled by the pressure changing insufflation gas, and then control the damping force of vibration damper.
2, the vibration damper that the present invention relates to has structure and simplifies, realizes easy, high reliability.
Accompanying drawing explanation
Fig. 1 is vibration damper overall structure schematic diagram of the present invention.
Fig. 2 is the structural representation of Stress control valve assembly in vibration damper of the present invention.
In Fig. 1: 1, oil storage cylinder; 2, bottom valve assembly; 3, Stress control valve assembly; 4, clutch release slave cylinder; 5, middle cylinder; 6, piston valve assembly; 7, guider assembly; 8, piston rod; 9, opening; 10, horn mouth.
In Fig. 2: 3-1, welding urceolus; 3-2, connection base; 3-3, pneumaticpiston urceolus; 3-4, O type circle I; 3-5, valve body gland; 3-6, O type circle II; 3-7, O type circle III; 3-8, pneumatic joint; 3-9, pneumaticpiston; 3-10, O type circle IV; 3-11, spool; 3-12, valve ball; 3-13, O type circle V; A, oil inlet hole; B, oil outlet; C, high pressure air cavity; D, normal pressure vent; E, normal pressure air cavity.
Embodiment
1 the vibration damper entirety that the present invention relates to is described in detail by reference to the accompanying drawings:
This vibration damper comprises oil storage cylinder 1, bottom valve assembly 2, Stress control valve assembly 3, clutch release slave cylinder 4, middle cylinder 5, piston valve assembly 6, guider assembly 7 and piston rod 8, described bottom valve assembly 2 coordinates with clutch release slave cylinder 4 lower end and is placed in the bottom of oil storage cylinder 1, piston valve assembly 6 to be coordinated with piston rod 8 by screw thread and to be placed in clutch release slave cylinder 4 inner, piston valve assembly 6 outward edge contacts with clutch release slave cylinder 4 inside edge and forms sliding pair and surface of contact defines motive sealing for fluid, guider assembly 7 is placed in the upper end of oil storage cylinder 1 and clutch release slave cylinder 4 and the static seal formed fluid that matches with oil storage cylinder 1 and clutch release slave cylinder 4 inward flange respectively, middle cylinder 5 is matched with clutch release slave cylinder 4 outer surface by O type circle, have opening 9 on the upside of clutch release slave cylinder 4 to communicate with middle cylinder 5, a horn mouth 10 is outwards had on the downside of middle cylinder 5, matched with the horn mouth 10 of middle cylinder 5 by O type circle in Stress control valve assembly 3 lower end, Stress control valve assembly 3 is connected with oil storage cylinder 1 by welding.
2 being described in detail Stress control valve assembly in the vibration damper that the present invention relates to by reference to the accompanying drawings:
Described Stress control valve assembly 3 comprises welding urceolus 3-1, connect base 3-2, pneumaticpiston urceolus 3-3, O type circle I 3-4, valve body gland 3-5, O type circle II 3-6, O type circle III 3-7, pneumatic joint 3-8, pneumaticpiston 3-9, O type circle IV 3-10, spool 3-11, valve ball 3-12 and O type circle V 3-13, described pneumatic joint 3-8 is connected with valve body gland 3-5 by screw thread, valve body gland 3-5 with weld urceolus 3-1 and be connected and push down pneumaticpiston urceolus 3-3 downwards, pneumaticpiston urceolus 3-3 outward edge contacts with welding urceolus 3-1 inward flange and passes through O type circle I 3-4 and seals, pneumaticpiston urceolus 3-3 pushes down downwards and connects base 3-2, connection base 3-2 is contacted with middle cylinder horn mouth 10 and is sealed by O type circle V 3-13, connecting base 3-2 makes the fluid of middle cylinder 5 can feed pressure control valve assembly 3 by oil inlet hole a, connecting base 3-2 makes fluid can get back to oil storage cylinder 1 by outflow pressure control valve assembly 3 by oil outlet b, O type circle III 3-7 is provided with between valve body gland 3-5 and pneumaticpiston urceolus 3-3, pneumaticpiston 3-9 outward edge is contacted with pneumaticpiston urceolus 3-3 inward flange and forms sliding pair and sealed by O type circle II 3-6, valve body gland 3-5, hyperbaric chamber c is formed between pneumaticpiston urceolus 3-3 and pneumaticpiston 3-9 three, pneumaticpiston 3-9 and pneumaticpiston urceolus 3-3 forms normal pressure air cavity e, normal pressure air cavity e leads to overpressure vent d and is communicated with ambient atmosphere, pneumaticpiston 3-9 pushes down spool 3-11 downwards, spool 3-11 outward edge and pneumaticpiston urceolus 3-3 interior side contacts are formed sliding pair and are sealed by O type circle IV 3-10, valve ball 3-12 is pushed down under spool 3-11, valve ball 3-12 blocks the oil inlet hole a connecting base 3-2 lower end downwards.
Specific works process is as follows:
When vibration damper extensional motion, piston rod 8 drives piston valve assembly 6 to move upward relative to clutch release slave cylinder 4, piston valve assembly 6 promotes fluid flows into clutch release slave cylinder 4 from oil storage cylinder 1 cavity of resorption by bottom valve assembly 2, and the fluid of clutch release slave cylinder 4 epicoele enters middle cylinder 5 by opening 9, and enter Stress control valve assembly 3 via the oil inlet hole a of Stress control valve assembly 3, enter oil storage cylinder 1 finally by the oil outlet b by Stress control valve assembly 3.When shock absorbers compression moves, piston rod 8 drives piston valve assembly 6 to move downward relative to clutch release slave cylinder 4, piston valve assembly 6 promotes fluid flows into clutch release slave cylinder 4 epicoele from the cavity of resorption of clutch release slave cylinder 4, the fluid of clutch release slave cylinder 4 epicoele enters middle cylinder 5 by opening 9, and enter Stress control valve assembly 3 via the oil inlet hole a of Stress control valve assembly 3, enter oil storage cylinder 1 finally by the oil outlet b by Stress control valve assembly 3.In sum, no matter vibration damper extensional motion or compression movement, the fluid in clutch release slave cylinder 4 all must return oil storage cylinder 1 by Stress control valve assembly 3.The gas of certain pressure can be filled with to the high pressure air cavity in Stress control valve assembly 3 by pneumatic joint 3-8, gas pressure acts on the oil inlet hole a of Stress control valve assembly 3 by pneumaticpiston 3-9, spool 3-11 and valve ball 3-12, makes must to reach from the fluid of oil inlet hole a feed pressure control valve assembly 3 pressure being enough to overcome air pressure and just can back down valve ball 3-12 and via oil outlet b off-load.So, the oil liquid pressure of vibration damper inside can be controlled by the pressure changing insufflation gas, and then control the damping force of vibration damper.
The advantage of this structure is that the motive sealing machining accuracy of pneumaticpiston 3-9 and pneumaticpiston urceolus 3-3 in Stress control valve assembly 3 can suitably reduce, when the high pressure air in high pressure air cavity is revealed from the motive sealing between pneumaticpiston 3-9 and pneumaticpiston urceolus 3-3, gas leakage will enter normal pressure air cavity c, and enter air through normal pressure vent d.This structure avoids because machining accuracy reason causes high pressure air to enter the problem of fluid generation foamed.
The advantage of this structure to be in Stress control valve assembly 3 that spool 3-11, valve ball 3-12 match and to seal oil inlet hole a fluid, reduces requirement on machining accuracy, and small flow can be avoided to reveal the effect that ensure that pressurize oil sealing.
Claims (3)
1. an air pressure controls ride control shock absorber, it is characterized in that: this vibration damper comprises oil storage cylinder, bottom valve assembly, Stress control valve assembly, clutch release slave cylinder, middle cylinder, piston valve assembly, guider assembly and piston rod, described bottom valve assembly coordinates with clutch release slave cylinder lower end and is placed in the bottom of oil storage cylinder, piston valve assembly to be coordinated with piston rod by screw thread and is placed in clutch release slave cylinder inside, piston valve assembly outward edge contacts with clutch release slave cylinder inside edge and forms sliding pair and surface of contact defines motive sealing for fluid, guider assembly is placed in the upper end of oil storage cylinder and clutch release slave cylinder and the static seal formed fluid that matches with oil storage cylinder and clutch release slave cylinder inward flange respectively, middle cylinder is matched with clutch release slave cylinder outer surface by O type circle, have opening on the upside of clutch release slave cylinder to communicate with middle cylinder, a horn mouth is outwards had on the downside of middle cylinder, matched with the horn mouth of middle cylinder by O type circle in Stress control valve assembly lower end, Stress control valve assembly is connected with oil storage cylinder by welding.
2. a kind of air pressure according to claim 1 controls ride control shock absorber, it is characterized in that: described Stress control valve assembly comprises welding urceolus, connect base, pneumaticpiston urceolus, O type circle I, valve body gland, O type circle II, O type circle III, pneumatic joint, pneumaticpiston, O type circle IV, spool, valve ball and O type circle V, described pneumatic joint is connected with valve body gland by screw thread, valve body gland with weld urceolus and be connected and push down pneumaticpiston urceolus downwards, pneumaticpiston urceolus outward edge is contacted with welding urceolus inward flange and is sealed by O type circle I, connection base pushed down downwards by pneumaticpiston urceolus, connection base is contacted with middle cylinder horn mouth and is sealed by O type circle V, O type circle III is provided with between valve body gland and pneumaticpiston urceolus, pneumaticpiston outward edge is contacted with pneumaticpiston urceolus inward flange and forms sliding pair and sealed by O type circle II, valve body gland, hyperbaric chamber c is formed between pneumaticpiston urceolus and pneumaticpiston three, pneumaticpiston and pneumaticpiston urceolus form atmospheric gas chamber e, normal pressure air cavity e leads to overpressure vent d and is communicated with ambient atmosphere, pneumaticpiston pushes down spool downwards, spool outward edge and pneumaticpiston urceolus interior side contacts are formed sliding pair and are sealed by O type circle IV, valve ball is pushed down under spool, valve ball blocks the oil inlet hole a connecting base lower end downwards.
3. a kind of air pressure according to claim 2 controls ride control shock absorber, it is characterized in that: connect base and make the fluid of middle cylinder can feed pressure control valve assembly by oil inlet hole a, connect base and make fluid can get back to oil storage cylinder by outflow pressure control valve assembly by oil outlet b.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410036134.9A CN104806676A (en) | 2014-01-26 | 2014-01-26 | Pneumatic control damp-adjustable shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410036134.9A CN104806676A (en) | 2014-01-26 | 2014-01-26 | Pneumatic control damp-adjustable shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104806676A true CN104806676A (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410036134.9A Pending CN104806676A (en) | 2014-01-26 | 2014-01-26 | Pneumatic control damp-adjustable shock absorber |
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| Country | Link |
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| CN (1) | CN104806676A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116379098A (en) * | 2023-06-05 | 2023-07-04 | 江苏伊思灵双第弹簧有限公司 | Wave spring for preventing lateral movement and overload |
-
2014
- 2014-01-26 CN CN201410036134.9A patent/CN104806676A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116379098A (en) * | 2023-06-05 | 2023-07-04 | 江苏伊思灵双第弹簧有限公司 | Wave spring for preventing lateral movement and overload |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150729 |
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| WD01 | Invention patent application deemed withdrawn after publication |