CN2195001Y - Hydraulic shock-absorber for automotive suspension - Google Patents
Hydraulic shock-absorber for automotive suspension Download PDFInfo
- Publication number
- CN2195001Y CN2195001Y CN 93202242 CN93202242U CN2195001Y CN 2195001 Y CN2195001 Y CN 2195001Y CN 93202242 CN93202242 CN 93202242 CN 93202242 U CN93202242 U CN 93202242U CN 2195001 Y CN2195001 Y CN 2195001Y
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- CN
- China
- Prior art keywords
- elastic element
- shock absorber
- rubber
- piston
- oil storage
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- Expired - Lifetime
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Abstract
The utility model relates to an automotive suspension type hydraulic shock-absorber, which is composed of a piston rod 1, a guide sleeve 3, an oil storage cylinder 4, a working cylinder 6, a compression valve 7, a piston 8, a resetting valve 10, and a compensation valve 9, wherein, an elastic element 5 is additionally arranged between the oil storage cylinder 4 and the working cylinder 6. Both ends of the elastic element 5 are respectively provided with a clamping band, and a 3 mm to 8 mm wide gap is reserved between the rest of the elastic element and the working cylinder. By using a process that the elastic element 5 is compressed when stressed by high pressure and is expanded when pressure is reduced, vacuum which is generated by the quick motion of the hydraulic shock-absorber and the piston is compensated in time. The utility model overcomes the defects of high frequency distortion and noise generation when working, and has the advantages of simple structure, easy assemblage, and low cost.
Description
The utility model relates to vehicle shock absorber, particularly the automotive suspension dydraulic shock absorber.
Hydraulic vibration damper used for vehicle utilizes the hydraulic damping effect and realizes vibration damping in the prior art.It is by oil storage cylinder, slave cylinder piston bar, piston, compositions such as recuperation valve.Piston is provided with compression valve and rebuilt valve.Because clutch release slave cylinder is split up into two chambeies up and down by piston, because of the reason of piston rod, during piston motion, two chamber volume-variation are different up and down, can produce differential effect.Particularly during the cavity of resorption sudden enlargement, the oil of oil storage cylinder has little time to be full of cavity of resorption, and produces air pocket and vacuum, the interior fluid of oil storage cylinder this moment is fuel feeding under zero-pressure or negative pressure state, fuel feeding can not be timely, makes vibration damper under high-frequency excitation, produces the distortion of serious noise and external characteristics.Because high frequency distortion and noise make vibration damper can not suppress the dynamic load of vehicle effectively, influence working life, bring harm to travel safety.Also have in the prior art and adopt the way that charges into portion gas in the oil storage cylinder to solve.But problems such as also bring the matching requirements height, oil is perishable, and the life-span is short.
It is a kind of simple in structure that the utility model provides, assembling easily, long service life can overcome the automotive suspension dydraulic shock absorber of high frequency distortion and noise effectively.
The utility model is achieved in that a tubular elastic element is set that its two ends lock ring is on the clutch release slave cylinder outer wall between oil storage cylinder and clutch release slave cylinder.When piston moved downward, some hydraulic oil flowed into the oil cylinder epicoele through the compression valve on the piston, and another part enters oil storage cylinder by bottom valve, and the action of hydraulic force of this cylinder makes its compression on elastic element.When piston moved upward, the cavity of resorption volume increased, and the pressure in the oil storage cylinder reduces oil and is sucked into cavity of resorption, and elastic element also expands simultaneously.Because the expansion that has elastic component, make the pressure in the oil storage cylinder remain at barotropic state, hydraulic oil can be full of the cavity of resorption of expansion rapidly, can not produce vacuum and cavitation, improve vibration damper high frequency distortion characteristic and noise greatly, improved the performance of vibration damper.In order to improve using effect, can suitably increase an auxiliary throttle orifice in the vibration damper bottom.
Tubular elastic element of the present utility model can be made with rubber-like metal, rubber, polyurethane plastic or other material, and is wherein best with the rubber effect.
The utility model is simple in structure, makes assembling easily, and using effect is good, can overcome the high frequency distortion and the noise of vibration damper effectively.
With accompanying drawing embodiment the utility model is further specified below.
Fig. 1 is an erection drawing of the present utility model, 1-piston rod wherein, 2-dust-proof cover, 3-guide pin bushing and sealing, 4-oil storage cylinder, 5-elastic element, 6-clutch release slave cylinder, 7-compression valve, 8-piston, 9-recuperation valve.
Fig. 2 is the elastic element structure schematic representation.Wherein 11-is the two ends boot band, and 12-cyclic reinforcing rib, 13-axially connect oil groove.Fig. 3 is the sectional view of Fig. 2.
When piston rod 1 is being with piston 8 to lower compression, the compressed valve 7 of the hydraulic oil part of cavity of resorption (rodless cavity) flows into epicoele (bar chamber), another part is in recuperation valve 9 flows to oil storage cylinder 4, and hydraulic coupling also acts on the elastic element 5 simultaneously, and elastic element 5 is compressed.When piston 8 moves upward, the compressed oil of epicoele flows into cavity of resorption through rebuilt valve 10, but differential effect because of piston rod 1, the oil that epicoele flows out does not satisfy the cavity of resorption needs, and oil storage cylinder 4 internal pressures reduce, and elastic element 5 expands, compensated the fluid that flows out, and make and remain the malleation fuel feeding in the oil storage cylinder 4, make fluid be full of cavity of resorption fast, guaranteed in cavity of resorption, not produce vacuum and air pocket.The high frequency distortion characteristic and the noise of vibration damper have been improved greatly.
The two ends clamping band length 5-20mm of elastic element 5; The centre of elastic element 5 can be provided with a plurality of cyclic reinforcing ribs 12; Appearance is provided with one or more axial perforation oil grooves 13.Between the remaining part of elastic element 5 and clutch release slave cylinder, leave the gap of 3-8mm.
Fig. 4 is the indicator diagram when being unkitted elastic element 5 embodiment illustrated in fig. 1, and No. 1 curve is to form under the V=0.298m/s condition, and it is mild changing in I, II, III quadrant, and it is fierce to change at the IV quadrant, produces distortion.As a place among the figure, this distortion phenomenon is more serious after gathering way, and promptly effectiveness in vibration suppression is poorer, is to make under the V=0.524m/s condition as curve 2, changes also gently at I, III quadrant, but in II, the distortion of IV quadrant seriously, has influenced vibration damping greatly.As b, c place among the figure.
Fig. 5 is the utility model embodiment indicator diagram that elastic element 5 is housed.Curve 3 is at V=0.298m/s, and curve 4 is made under the V=0.524m/s condition.Curve 3 when no matter being low speed as seen from the figure or curve 4 at a high speed, they relax in all quadrants variation, do not distort, and damping property improves greatly.
Claims (7)
1, a kind of automotive suspension dydraulic shock absorber, it is by piston rod 1, guide pin bushing 3, oil storage cylinder 4, clutch release slave cylinder 6, compression valve 7, piston 8, rebuilt valve 10, recuperation valve 9 compositions such as grade is characterized in that being provided with an elastic element 5 between oil storage cylinder 4 and clutch release slave cylinder 6, respectively be provided with one clamping band at the two ends of elastic element 5, all the other partly and between the clutch release slave cylinder leave the 3-8mm gap.
2, dydraulic shock absorber according to claim 1 is characterized in that the two ends clamping band length of elastic element 5 is 5-20mm.
3, dydraulic shock absorber according to claim 1 and 2 is characterized in that the outer surface of elastic element 5 is provided with the oil groove 13 of one or more axial perforations.
4, dydraulic shock absorber according to claim 1 and 2 is characterized in that the centre of elastic element 5 can be provided with a plurality of cyclic reinforcing ribs 12.
5, dydraulic shock absorber according to claim 1 and 2 is characterized in that elastic element 5 is to be made by rubber or polyurethane plastics or rubber-like metallic material.
6, dydraulic shock absorber according to claim 3 is characterized in that elastic element 5 is to be made by rubber or polyurethane plastics or rubber-like metallic material.
7, dydraulic shock absorber according to claim 4 is characterized in that elasticity file 5 is to be made by rubber or polyurethane plastics or rubber-like metallic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93202242 CN2195001Y (en) | 1993-01-29 | 1993-01-29 | Hydraulic shock-absorber for automotive suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93202242 CN2195001Y (en) | 1993-01-29 | 1993-01-29 | Hydraulic shock-absorber for automotive suspension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2195001Y true CN2195001Y (en) | 1995-04-19 |
Family
ID=33786486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93202242 Expired - Lifetime CN2195001Y (en) | 1993-01-29 | 1993-01-29 | Hydraulic shock-absorber for automotive suspension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2195001Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100362257C (en) * | 2005-04-01 | 2008-01-16 | 励明夫 | Wearable hydraulic bumper |
| CN102022470A (en) * | 2009-09-10 | 2011-04-20 | 萱场工业株式会社 | Fluid pressure shock absorber |
| CN102951047A (en) * | 2011-08-15 | 2013-03-06 | 苏斯帕有限公司 | Damper |
| CN104389938A (en) * | 2014-10-22 | 2015-03-04 | 湖北扬飞减震器有限公司 | Foamed rubber filled type/adjustable elastic car shock absorber |
-
1993
- 1993-01-29 CN CN 93202242 patent/CN2195001Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100362257C (en) * | 2005-04-01 | 2008-01-16 | 励明夫 | Wearable hydraulic bumper |
| CN102022470A (en) * | 2009-09-10 | 2011-04-20 | 萱场工业株式会社 | Fluid pressure shock absorber |
| CN102022470B (en) * | 2009-09-10 | 2014-01-01 | 萱场工业株式会社 | Fluid pressure shock absorber |
| CN102951047A (en) * | 2011-08-15 | 2013-03-06 | 苏斯帕有限公司 | Damper |
| CN104389938A (en) * | 2014-10-22 | 2015-03-04 | 湖北扬飞减震器有限公司 | Foamed rubber filled type/adjustable elastic car shock absorber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |