CN101649879B - Damper valve - Google Patents
Damper valve Download PDFInfo
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- CN101649879B CN101649879B CN2009101769640A CN200910176964A CN101649879B CN 101649879 B CN101649879 B CN 101649879B CN 2009101769640 A CN2009101769640 A CN 2009101769640A CN 200910176964 A CN200910176964 A CN 200910176964A CN 101649879 B CN101649879 B CN 101649879B
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- guiding
- damper
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Abstract
The invention relates to a damper valve of an oil-gas spring, the damper valve is assembled between an oil chamber and a gas chamber, sufficient valve opening force can be generated through the design for a pretightening spring to weaken the vibration energy from the outside, and the damper valve has stable and reliable operation and particularly can satisfy the requirement of heavy-duty vehicles for the resistance value of a damping device.
Description
Technical field
The present invention relates to a kind of damper valve structure of oleo-pneumatic suspension, belong to hydraulic system and road vehicle application field.
Background technique
Damper valve is the core component of oil gas suspended device, is arranged in usually between oil cylinder and the cylinder, and it can be converted into heat energy to kinetic energy by liquid friction, thereby weakens and absorb the vibration of car body, promotes the run smoothness and the off-road mobility of vehicle.When wheel was subjected to impacting fast, valve left by damper valve, and the vibration of the vehicle of decaying rapidly improves occupant's travelling comfort.
Because hanging damping ratio is directly proportional with load, for heavy vehicle, require damper valve can produce the vibrational energy that enough valve opening forces come from the outside with decay, the negative effect that the continuous increase of valve body two ends pressure reduction also brings its structural strength is so the exploitation damper valve that Resistance Value is big and reliability is high has crucial meaning to the heavy vehicle damping member.
Summary of the invention
The invention provides a kind of damper valve of hydro-pneumatic spring, described damper valve is assemblied between grease chamber and the air chamber, comprises threaded collar, vibration damping valve body, little spring, big spring, valve seat, spacer, spring seat, nut, pin, guiding valve, valve body and pad; The axle of guiding valve and the hole that matches with it are Spielpassung, after axle passes the hole, are screwed into nut, align the aperture on nut and the guiding valve, insert pin, and nut and pin are fixed on guiding valve in the valve body, so are assembled into Spool assembly; In the vibration damping valve body inner bore little spring is housed, the spacer that is used to adjust spring force is installed between vibration damping valve body and the little spring, between guiding valve and the little spring spring seat is installed, motion compresses little spring with guiding valve, Spool assembly and vibration damping valve body are processed with compression normal open hole and restore the normal open hole by being threaded on the valve body, the pad that is in the unrestricted motion state is installed between valve body and threaded collar, the logical pasta that is used for changing positive revesal normal open hole is long-pending, is processed with inclined hole on the guiding valve.
Under the effect of little spring pretightening force, the end face of guiding valve is positioned at the left side of valve body annular end face.
Be processed with groove on the end face of threaded collar.
Damper valve provided by the present invention has solved above-mentioned the deficiencies in the prior art well, and working stability is reliable, by facts have proved the reliability that can guarantee the valve architecture when satisfying the requirement of heavy vehicle Resistance Value.
Description of drawings
Fig. 1 is the damper valve erection drawing
Fig. 2 is the Spool assembly structural drawing
Fig. 3 is that damper valve A is to view
Fig. 4 opens valve oil liquid for positive stroke damper valve and flows to schematic representation
Fig. 5 does not open valve oil liquid for positive stroke damper valve and flows to schematic representation
Fig. 6 flows to schematic representation for recovery stroke damper valve fluid
Embodiment
Damper valve structure involved in the present invention as shown in Figure 1.Comprising threaded collar 1, vibration damping valve body 2, little spring 3, spacer 4, spring seat 5, nut 6, pin 7, guiding valve 8, valve body 9, pad 10.Between the axle A of guiding valve 8 and the hole B that valve body 9 matches with it is Spielpassung, after axle A passes hole B, be screwed into nut 6, align the aperture on nut 6 and the guiding valve 8, insert pin 7, nut 6 and pin 7 are fixed on guiding valve 8 in the valve body 9, make guiding valve 8 with respect to valve body 9 slides within, be called Spool assembly after assembling, as shown in Figure 2.At the vibration damping valve body 2 endoporus little spring 3 of packing into, because the existence of machining error, the spring force of little spring 3 has deviation, can come trace to adjust spring force by the quantity of increase and decrease spacer 4, open the valve damping force thereby change; Spring seat 5 is between guiding valve 8 and little spring 3, motion compresses little spring 3 with guiding valve 8, with the Spool assembly shown in Figure 2 vibration damping valve body 2 of packing into, and by being threaded, be processed with compression normal open hole 9A on the valve body 9 and reply normal open hole 9B, the pad 10 that is in the unrestricted motion state is installed between valve body 9 and threaded collar 1, the logical pasta that is used for adjusting positive revesal normal open hole is long-pending, promptly change the damping value of positive revesal, have only the hole 9A throttling of compression normal open during positive stroke, as shown in Figure 4 and Figure 5, and in recovery stroke, compression normal open hole 9A and answer normal open hole 9B throttling simultaneously, as shown in Figure 6.Generally speaking, positive stroke damping is greater than the revesal damping; Be processed with inclined hole D on the guiding valve 8, in the sliding process of guiding valve 8, the fluid among the oil pocket E that forms between guiding valve 8 and the valve body 9 can flow out from inclined hole D, to prevent dead space.The damper valve that assembling is finished, under the effect of little spring 3 pretightening forces, the end face G of guiding valve 8 is positioned at the left side of the annular end face H of valve body 9, is in closed condition.Threaded collar 1 is used for the locking of Spool assembly, as shown in Figure 3, is processed with groove 1A on its end face, so that use special tool locking screw back-up ring 1 and valve body 9.
When being assembled in the middle of the hydro-pneumatic spring, threaded collar 1 has the side of groove 1A to the hydro-pneumatic spring main piston, and when wheel was subjected to impacting fast, grease chamber's pressure sharply increased, guiding valve 8 moves to right under the effect of high pressure, promote spring seat 5, thereby compression little spring 3 causes the end face G of guiding valve 8 to cross the annular end face H of valve body 9, be that valve left by damper valve, the rapid earial drainage of high pressure oil, thus the impact of road surface alleviated to car body, and the flow direction of fluid is as shown in Figure 4; When road wheel was subjected to slightly impacting, valve do not left by damper valve, and the fluid that is compressed by main piston in the grease chamber only by compression normal open hole 9A on the valve body 9 and the hole 9B throttling of answer normal open, is alleviated Vehicular vibration, and the flow direction of fluid as shown in Figure 5 and Figure 6; In the recovery stroke stage of main piston, promptly wheel moves downward, and fluid flow back into the grease chamber rapidly by the normal open hole of damper valve valve body 9, and the flow direction of fluid is shown in accompanying drawing six.
The damper valve that the present invention relates to has good versatility, for the oleo-pneumatic suspension of different vehicle, can change the damping capacity that normal open hole area on the spring force of little spring 3 and the valve body 9 reaches expection.
Need to prove, those skilled in the art can easily understand, damper valve involved in the present invention can be installed in the dissimilar damping members in the above described manner, and under the situation that does not break away from the spirit and scope of the present invention that are defined by the following claims, can carry out various multi-form changes and change to the present invention.
Claims (3)
1. the damper valve of a hydro-pneumatic spring, described damper valve is assemblied between grease chamber and the air chamber, comprises threaded collar, vibration damping valve body, little spring, big spring, valve seat, spacer, spring seat nut, pin, guiding valve, valve body and pad; The axle of guiding valve and the hole that matches with it are Spielpassung, after axle passes the hole, are screwed into nut, align the aperture on nut and the guiding valve, insert pin, and nut and pin are fixed on guiding valve in the valve body, so are assembled into Spool assembly; In the vibration damping valve body inner bore little spring is housed, the spacer that is used to adjust spring force is installed between vibration damping valve body and the little spring, between guiding valve and the little spring spring seat is installed, motion compresses little spring with guiding valve, Spool assembly and vibration damping valve body are processed with compression normal open hole and restore the normal open hole by being threaded on the valve body, the pad that is in the unrestricted motion state is installed between valve body and threaded collar, the logical pasta that is used for changing positive revesal normal open hole is long-pending, is processed with inclined hole on the guiding valve.
2. damper valve according to claim 1 is characterized in that: under the effect of little spring pretightening force, the end face of guiding valve is positioned at the left side of valve body annular end face.
3. damper valve according to claim 1 is characterized in that being processed with groove on the end face of threaded collar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101769640A CN101649879B (en) | 2009-09-25 | 2009-09-25 | Damper valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101769640A CN101649879B (en) | 2009-09-25 | 2009-09-25 | Damper valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101649879A CN101649879A (en) | 2010-02-17 |
| CN101649879B true CN101649879B (en) | 2011-06-22 |
Family
ID=41672178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101769640A Active CN101649879B (en) | 2009-09-25 | 2009-09-25 | Damper valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101649879B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943906A (en) * | 2012-11-21 | 2013-02-27 | 哈尔滨东安发动机（集团）有限公司 | Check valve device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20014069U1 (en) * | 2000-08-16 | 2000-12-21 | Fu Luong Hi Tech Co | Hydropneumatic shock absorber for a two-wheeler |
| EP1504930A1 (en) * | 2003-08-08 | 2005-02-09 | Rheinmetall Landsysteme GmbH | Hydropneumatic-element |
| CN2769608Y (en) * | 2005-02-07 | 2006-04-05 | 深圳市中车业成实业有限公司 | Oil pressure vibrating reducer for railbus |
| CN101016926A (en) * | 2007-02-06 | 2007-08-15 | 南京航空航天大学 | Undercarriage bumper having inner flow regulating valve |
| CN201258938Y (en) * | 2008-08-18 | 2009-06-17 | 重庆渝安创新科技(集团)有限公司 | Inverted rear shock absorber |
-
2009
- 2009-09-25 CN CN2009101769640A patent/CN101649879B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20014069U1 (en) * | 2000-08-16 | 2000-12-21 | Fu Luong Hi Tech Co | Hydropneumatic shock absorber for a two-wheeler |
| EP1504930A1 (en) * | 2003-08-08 | 2005-02-09 | Rheinmetall Landsysteme GmbH | Hydropneumatic-element |
| CN2769608Y (en) * | 2005-02-07 | 2006-04-05 | 深圳市中车业成实业有限公司 | Oil pressure vibrating reducer for railbus |
| CN101016926A (en) * | 2007-02-06 | 2007-08-15 | 南京航空航天大学 | Undercarriage bumper having inner flow regulating valve |
| CN201258938Y (en) * | 2008-08-18 | 2009-06-17 | 重庆渝安创新科技(集团)有限公司 | Inverted rear shock absorber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101649879A (en) | 2010-02-17 |
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