CN103174788B - A kind of hydraulic shock absorber damping regulation structure - Google Patents
A kind of hydraulic shock absorber damping regulation structure Download PDFInfo
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- CN103174788B CN103174788B CN201310090342.2A CN201310090342A CN103174788B CN 103174788 B CN103174788 B CN 103174788B CN 201310090342 A CN201310090342 A CN 201310090342A CN 103174788 B CN103174788 B CN 103174788B
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- control valve
- regulation structure
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- shock absorber
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Abstract
A kind of damping control valve, it is hollow cylindrical, has multiple through hole running through both ends of the surface, and end surface has to be closed and contour projection, the confined area convexed to form described in described through hole is positioned at.Damping control valve of the present invention has good adjustability, forms differentiation damping capacity.
Description
Technical field
Patent of the present invention relates to a kind of automobile chassis damper fluid pressure currency structure, is specially the damping regulation structure for damper fluid pressure flow quantity control.
Background technique
The existing damping regulation structure kind for vibration damper flow quantity control is few, but difference is larger.Classify with regard to damping regulative mode, mainly contain: one relies on variation rigidity limit spring change flow of pressurized flux and velocity of liquid assets to realize hydraulic pressure flow quantity control, circulation damp adjustable range is wide, but because spring rate fluctuation is unfavorable for vibration damper hydraulic damping conformity, and spring heights takies larger space; Another kind relies on damping fin piling height to change hydraulic pressure circulation area to realize hydraulic pressure flow quantity control, and structure is simple, control structure conformity is high, but damping fin piling height is limited, and circulation damp adjustable range is less.Therefore need to design a kind of damping regulation structure, can realize: compact structure, circulation damp adjustable range is large, is convenient to conformity of production and controls.
Summary of the invention
In order to solve, vibration damper currency structure damp adjustable range is little, complex structure and be unfavorable for the problem that conformity of production controls, and the invention provides a kind of damping regulation structure for vibration damper flow quantity control.
The present invention adopts following technological means to realize:
A damping regulation structure for hydraulic shock absorber, is characterized in that, comprise damping control valve and;
Piston rod;
Piston, described piston has opening;
Inner ring damping fin group, be made up of multiple inner ring damping fin, it has throttle orifice;
Outer ring damping fin group, be made up of multiple outer rings damping fin, it has throttle orifice;
Pad;
Packing ring;
Limiting stopper;
Nut;
Described damping control valve is hollow cylindrical, it has multiple through hole running through both ends of the surface, end surface has to be closed and contour projection, the confined area convexed to form described in described through hole is positioned at, described piston, described damping control valve, described inner ring damping fin group, described pad, described outer ring damping fin group, described packing ring, described limiting stopper, described nut overlaps in the described piston rod of access successively, the projection of described damping control valve contacts with described outer ring damping fin group, described inner ring damping fin covers the through hole of described damping control valve, described nut compresses described limiting stopper, described limiting stopper can contact with described outer ring damping fin group, described opening is corresponding with the through hole of described damping control valve, in described damping regulation structure, form throttle with this and regulate section, low speed damping regulates section, high-speed damping regulates section, piston damping regulates section.
Selectable, described through hole is circular hole, radially uniform, and aperture is fixed value.
Selectable, described confined area is circular.
Selectable, the external diameter of described projection is consistent with the external diameter of described damping control valve main body.
Selectable, described through hole two ends have counterbore.
Selectable, described counterbore is taper.
Selectable, the material of described damping control valve is 45 steel or 40 chromium.
Selectable, the material of damping fin is 20 steel.
Beneficial effect of the present invention:
The height official post damping convexed to form of damping control valve has adjustability; The shape of through hole and confined area rule and layout make the overall stress equalization of damping control valve; Protruding external diameter is consistent with damping control valve main body, is convenient to processing, saves material; The counterbore that through hole two ends are arranged is convenient to fluid and is passed through.
When vibration damper circulating liquid enters damping adjusting system, by piston flow through hole, inner ring damping fin group and outer ring damping fin group after nut torque is fixing because projection produces distortion, liquid by time need overcome this distortion, the following change of experience successively: inner ring damping fin group and opening produce gap; Inner ring damping fin group deforming contact outer ring damping fin group; Outer ring damping fin group contacts with limiting stopper.And then produce the deformation damping of four different phases, namely throttle regulates section, low speed damping regulates section, high-speed damping adjustment section, piston damping regulates section.Resistance of shock absorber regulation structure of the present invention, have damping regulate space large, damping stability is high, connect reliable feature.
In addition, the damping regulation structure of hydraulic shock absorber comprises above-mentioned damping control valve, the inner ring damping fin group coordinated with damping control valve and outer ring damping fin group, pad, packing ring, limiting stopper.Said elements is pressed on piston rod by nut, can form the damping regulation structure of differentiation by the height of damping adjusting control valve projection, washer height, damping fin quantity, throttle hole area, the width (external diameter) of limiting stopper, the pretightening force etc. of nut.
Accompanying drawing explanation
Fig. 1 is the structural representation of the damping control valve of the embodiment of the present invention;
Fig. 2 is the cross-sectional configuration schematic diagram of the damping regulation structure of the embodiment of the present invention;
Fig. 3 is the speed-damping capacity adjustment curve figure of the embodiment of the present invention.
Sequence number illustrates: 1-piston rod, 2-piston, 21-opening, 3-damping control valve, 31-through hole, 32-counterbore, 33-is protruding, 34-end surfaces, 35-first depressed part, 36-second depressed part, 4-pad, 5-inner ring damping fin group, 6-outer ring damping fin group, 7-packing ring, 8-limiting stopper, 9-nut, 10-shock absorber working cylinder, damping turning point before a-, damping turning point after b-, c-throttle regulates section, the damping of d-low speed regulates section, and e-high-speed damping regulates section, and f-piston damping regulates section.
Embodiment
Below in conjunction with accompanying drawing, by specific embodiment, the invention will be further described.
As shown in Figure 1, a kind of damping control valve 3, it is hollow cylindrical, has multiple through hole 31 running through both ends of the surface, and end surface 34 has to be closed and contour projection 33, and through hole 31 is positioned at protruding 33 confined areas formed.
Through hole 32 can be circular, square or other are irregularly shaped.Preferably, through hole 32 is circular hole, radially uniform, and aperture is fixed value.Confined area can be circular, square or other are irregularly shaped, as long as through hole 32 is positioned at, it is inner.Optionally, confined area is circular.Protruding 33 can be positioned at end face edge or inside, and preferably the external diameter of protruding 33 is consistent with the external diameter of damping control valve 3 main body.Through hole 31 can be the hole of internal diameter change, and also can be the hole that two ends extend out, preferred through hole 31 two ends have counterbore 32, and counterbore 32 is taper.Preferably, the end surfaces 34 between through hole 31 and projection has the first depressed part 35, and accordingly, the surface outside the through hole of the other end has the second depressed part 36, makes end face define the structure of inner ring, centre circle, outer ring.
As shown in Figure 2, a kind of damping regulation structure of hydraulic shock absorber comprises above damping control valve 3 and piston rod 1, piston 2, inner ring damping fin group 5, outer ring damping fin group 6, pad 4, packing ring 7, limiting stopper 8, nut 9, and above-mentioned part is positioned at shock absorber working cylinder 10.
Piston 2, piston 2 has opening 21; Inner ring damping fin group 5 is made up of multiple inner ring damping fin, and it has throttle orifice; Outer ring damping fin group 6 is made up of multiple outer rings damping fin, and it has throttle orifice.Damping regulation structure carrys out hydraulic control leakage rate by change throttle orifice quantity, orifice size, thus damping adjusting, throttle orifice quantity is more, opening area is larger, and damping curve is milder, and damping force value is less.The quantity of opening, area determine liquid communication speed, only produce a small amount of damping when velocity of liquid assets is lower, increase damping and linearly increase, continue to increase reaching the damping of opening max-flow flux limit with flow velocity.
Piston 2, damping control valve 3, inner ring damping fin group 5, pad 4, outer ring damping fin group 6, packing ring 7, limiting stopper 8, nut 9 overlap in access piston rod 1 successively, the projection 33 of damping control valve 3 contacts with outer ring damping fin group 6, inner ring damping fin group 5 covers the through hole 31 of damping control valve 3, nut 9 compresses limiting stopper 8, opening 21 is corresponding with through hole 31, the size of opening 21 and through hole 31 approximately equal, fluid smooth and easyly can flow into through hole 31 from opening 21.The diameter of inner ring damping fin group 5 is less than outer ring damping fin group 6, and both diameters affect damping capacity.Inner ring damping fin group 5 coordinates with end surfaces 34, outer ring damping fin group 6 coordinates with protruding 33, pad 4 is between inner ring damping fin group 5 and outer ring damping fin group 6, and the height of protruding 33, slightly larger than the height of pad 4, is convenient to inner ring damping fin group 5 and outer ring damping fin group 6 to compress.Damping control valve 3 is rigid material, and preferably, the material of damping control valve 3 is 45 steel or 40 chromium.Damping fin has certain flexibility, and preferably, the material of damping fin is 20 steel.
Composition graphs 3 is seen, when hydraulic fluid is by resistance of shock absorber regulation structure, flow velocity is different, the distortion of damping fin group is different, and then play adjustment hydraulic damping effect, increase with liquid speed, each system element successively participates in damped system effect, and the resistance of shock absorber under producing friction speed, form speed-damping capacity adjustment curve.
When vibration damper circulating liquid enters damping adjusting system, by piston flow through hole 21, inner ring damping fin group 5 and outer ring damping fin group 6 are out of shape because projection 33 produces after nut 9 moment of torsion is fixing, liquid by time need overcome this distortion, the following change of experience successively: inner ring damping fin group 5 and opening 21 produce gap; Inner ring damping fin group 5 deforming contact outer ring damping fin group 6; Outer ring damping fin group 6 contacts with limiting stopper 8.And then produce the deformation damping of four different phases, namely throttle regulates section c, low speed damping regulates section d, high-speed damping adjustment section e, piston damping regulates section f.
Small hole leaking is there is between each parts in damping regulation structure, this aperture is mainly the throttle orifice of damping fin, when hydraulic flow rates is lower, the each parts of damping regulation structure do not produce distortion, throttle orifice hydraulic leak is now only relied on to produce damping, the circulation damping of this stage is less, rises in square increasing trend with flow velocity, until flow velocity causes damping fin to produce distortion.There is height difference in damping control valve protruding 33 and end surfaces 34, this height difference causes inner ring damping fin group 5 to produce predeformation after nut 9 applies moment of torsion, before hydraulic flow rates increase makes inner ring damping fin group 5 be out of shape and end surfaces 34 produces gap, need overcome this predeformation, this deformation point forms damping turning point a before in Fig. 3.Hydraulic damping regulation structure is by the height difference of damping adjusting control valve protruding 33 with end surfaces 34, and regulate the initial damping under low flow velocity, i.e. " valve opening point ", height difference is larger, and initial damping is larger, and " valve opening point " is higher.
Damping fin storehouse rigidity is produced after nut screwing clamping moment is fixing, liquid need overcome damping fin group self-stiffness and produce damping, velocity of liquid assets is larger, the damping overcoming the generation of storehouse rigidity is larger, when flow rate of liquid increase to low speed valve damping fin is contacted with quick closing valve damping fin time, damping fin group rigidity adds up, and provides high-speed damping performance adjustable space.The height of pad 4 provides the deformation space of inner ring damping fin group 5, when hydraulic pressure causes inner ring damping fin group 5 amount of deformation to touch outer ring damping fin group 6, damping fin group deformation rigidity increases, fluid by overcoming the complex stiffness of inner ring damping fin group 5 and outer ring damping fin group 6, thus produces larger damping.This point of contact makes damping capacity suddenly rise, and form damping turning point b, i.e. " change valve point " after in Fig. 3, inner ring damping fin group 5 rigidity is larger, and " change valve point " damping is larger.
The height of packing ring 7, the width (external diameter) of limiting stopper 8 affect the damping capacity of outer ring damping fin group 6, and when outer ring damping fin group 6 contacts with limiting stopper 8, the growth trend of damping capacity slows down.
The height difference that damping control valve protruding 33 exists with end surfaces 34, the height of packing ring 7, the width (external diameter) of limiting stopper 8 make resistance of shock absorber curve formed 4 sections adjustable, the rigidity of damping fin group is with the quantity of damping fin, thickness increase and promoting.In damping regulation structure, " valve opening point " is higher, and the initial force value of low speed damping is larger; Inner ring damping fin group 5 rigidity is larger, and low speed damping is larger; Pad 4 is highly higher, low speed damping curve Duan Yuechang; " change valve point " damping is higher, and the initial force value of high-speed damping is larger, and low speed, high-speed damping regulation range are wider.
Damping regulation structure element is as machining by precision in piston 2, damping control valve 3, damping fin etc., and adopts tandem to accumulate, and assembly precision, homogeneity of product are easy to control, and damping stability is high, connection is reliable.
Although the present invention is described in conjunction with above embodiment, but the present invention is not limited to above-described embodiment, and only by the restriction of claims, those of ordinary skill in the art can easily modify to it and change, but do not leave essential idea of the present invention and scope.
Claims (8)
1. a damping regulation structure for hydraulic shock absorber, is characterized in that, comprise damping control valve and:
Piston rod;
Piston, described piston has opening;
Inner ring damping fin group, be made up of multiple inner ring damping fin, it has throttle orifice;
Outer ring damping fin group, be made up of multiple outer rings damping fin, it has throttle orifice;
Pad;
Packing ring;
Limiting stopper;
Nut;
Described damping control valve is hollow cylindrical, it has multiple through hole running through both ends of the surface, end surface has to be closed and contour projection, the confined area convexed to form described in described through hole is positioned at, described piston, described damping control valve, described inner ring damping fin group, described pad, described outer ring damping fin group, described packing ring, described limiting stopper, described nut overlaps in the described piston rod of access successively, the projection of described damping control valve contacts with described outer ring damping fin group, described inner ring damping fin covers the through hole of described damping control valve, described nut compresses described limiting stopper, described limiting stopper can contact with described outer ring damping fin group, described opening is corresponding with the through hole of described damping control valve, in described damping regulation structure, form throttle with this and regulate section, low speed damping regulates section, high-speed damping regulates section, piston damping regulates section.
2. the damping regulation structure of hydraulic shock absorber according to claim 1, is characterized in that, described through hole is circular hole, radially uniform, and aperture is fixed value.
3. the damping regulation structure of hydraulic shock absorber according to claim 1, is characterized in that, described confined area is circular.
4. the damping regulation structure of hydraulic shock absorber according to claim 3, is characterized in that, the external diameter of described projection is consistent with the external diameter of described damping control valve main body.
5. the damping regulation structure of hydraulic shock absorber according to claim 1, is characterized in that, described through hole two ends have counterbore.
6. the damping regulation structure of hydraulic shock absorber according to claim 5, is characterized in that, described counterbore is taper.
7. the damping regulation structure of hydraulic shock absorber according to claim 1, is characterized in that, the material of described damping control valve is 45 steel or 40 chromium.
8. the damping regulation structure of hydraulic shock absorber according to claim 1, is characterized in that, the material of damping fin is 20 steel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310090342.2A CN103174788B (en) | 2013-03-20 | 2013-03-20 | A kind of hydraulic shock absorber damping regulation structure |
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| CN201310090342.2A CN103174788B (en) | 2013-03-20 | 2013-03-20 | A kind of hydraulic shock absorber damping regulation structure |
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| CN103174788A CN103174788A (en) | 2013-06-26 |
| CN103174788B true CN103174788B (en) | 2015-08-26 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090110B (en) * | 2016-08-29 | 2017-12-22 | 安徽工程大学 | Electro-rheological fluid damper |
| CN107061595A (en) * | 2017-04-21 | 2017-08-18 | 辽宁工业大学 | A kind of automatically controlled piston mechanism of suspension shock-absorber |
| CN107989840B (en) * | 2017-11-23 | 2020-08-04 | 台州市路桥区嘉伟鞋帽厂 | Damping control valve |
| CN108816529A (en) * | 2018-08-08 | 2018-11-16 | 江苏同泽过滤科技有限公司 | A kind of centrifugal base damping shock absorber |
| CN112984023B (en) * | 2021-02-04 | 2022-07-08 | 大连科技学院 | Two-stage extension valve shock absorber piston |
| CN113757294B (en) * | 2021-10-14 | 2022-06-24 | 安徽江淮汽车集团股份有限公司 | Universal shock absorber valve seat and shock absorber |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2403604Y (en) * | 2000-01-14 | 2000-11-01 | 上海同捷科技有限公司 | Vibration-damper valve |
| CN201071898Y (en) * | 2007-07-20 | 2008-06-11 | 隆昌山川减振器工业有限公司 | Compression damping valve of hydraulic buffer |
| CN201973157U (en) * | 2010-12-30 | 2011-09-14 | 浙江万向系统有限公司 | Multistage damping piston valve of automobile vibration damper |
| CN202132437U (en) * | 2011-06-20 | 2012-02-01 | 隆昌山川精密焊管有限责任公司 | Compression valve of shock absorber for automobiles |
| CN202468820U (en) * | 2012-02-17 | 2012-10-03 | 浙江万向系统有限公司 | Piston valve body for improving low-speed damping of shock absorber |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5722437A (en) * | 1980-07-11 | 1982-02-05 | Yamaha Motor Co Ltd | Oil hydraulic damper |
| JPS61189338A (en) * | 1985-02-13 | 1986-08-23 | Kayaba Ind Co Ltd | Damping force adjusting structure of shock absorber |
| JPH11280821A (en) * | 1998-03-31 | 1999-10-15 | Showa Corp | Valve pressing mechanism in damping force adjusting device |
| KR20120114349A (en) * | 2010-02-12 | 2012-10-16 | 히다치 오토모티브 시스템즈 가부시키가이샤 | Suspension device |
| CN201747842U (en) * | 2010-07-26 | 2011-02-16 | 河北万众汽车零部件制造有限公司 | Single barrel type oil and gas spring |
-
2013
- 2013-03-20 CN CN201310090342.2A patent/CN103174788B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2403604Y (en) * | 2000-01-14 | 2000-11-01 | 上海同捷科技有限公司 | Vibration-damper valve |
| CN201071898Y (en) * | 2007-07-20 | 2008-06-11 | 隆昌山川减振器工业有限公司 | Compression damping valve of hydraulic buffer |
| CN201973157U (en) * | 2010-12-30 | 2011-09-14 | 浙江万向系统有限公司 | Multistage damping piston valve of automobile vibration damper |
| CN202132437U (en) * | 2011-06-20 | 2012-02-01 | 隆昌山川精密焊管有限责任公司 | Compression valve of shock absorber for automobiles |
| CN202468820U (en) * | 2012-02-17 | 2012-10-03 | 浙江万向系统有限公司 | Piston valve body for improving low-speed damping of shock absorber |
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Address after: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
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Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230022 No. 176 Dongliu Road, Hefei City, Anhui Province Patentee before: Anhui Jianghuai Automobile Group Limited by Share Ltd |