CN201763878U - Single-barrel shock absorber - Google Patents
Single-barrel shock absorber Download PDFInfo
- Publication number
- CN201763878U CN201763878U CN2010202804705U CN201020280470U CN201763878U CN 201763878 U CN201763878 U CN 201763878U CN 2010202804705 U CN2010202804705 U CN 2010202804705U CN 201020280470 U CN201020280470 U CN 201020280470U CN 201763878 U CN201763878 U CN 201763878U
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- piston
- cylindrical shell
- piston rod
- barrel
- cavity
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- Expired - Fee Related
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Abstract
The utility model discloses a single-barrel shock absorber, which comprises a barrel, a piston rod and a piston component. The piston rod is movable in accessing from one side of the barrel, the piston component arranged inside the barrel is linked with the piston rod, a floating piston is further arranged on the inner lower side, opposite to the piston component, of the barrel, the piston component and the floating piston divide an inner cavity of the barrel into an upper cavity, an intermediate cavity and a lower cavity, shock absorbing oil is filled in the lower cavity and the intermediate cavity, high-pressure inert gas is filled in the lower cavity, the piston component includes a bidirectional piston in sliding fit with the inner wall of the barrel, a compression valve is fixedly arranged on the upper surface of the bidirectional piston, and a reset valve is fixedly arranged on the lower surface of the bidirectional piston. The single-barrel shock absorber has the advantages of fine shock absorption effect, and capabilities of reducing noise and improving riding comfortableness.
Description
Technical field
The utility model relates to a kind of automobile absorber, specifically is meant a kind of monotubular formula vibration damper.
Background technique
At present, the vibration damper of automobile use all belongs to hydraulic damper basically.Its principle is to do reciprocal relative movement when vehicle frame and vehicle bridge, and piston is in clutch release slave cylinder during to-and-fro motion, the fluid of vibration damper inside just flows into another inner chamber from an inner chamber by some narrow holes repeatedly, at this moment, friction just forms the damping force to vibration in friction between hole wall and fluid and the fluid molecule, make the vibrational energy of vehicle body and vehicle frame be converted into heat energy, and absorbed, loose in atmosphere then by fluid and shock absorber casing.Because piston rod can make the cylinder body volume reduce when stretching in the cylinder body, so can not fill with damping oil fully in the cylinder body.Originally just can not fill with because of the damping oil in the cylinder body again, vibration damper in use also occurs factor such as leakage of oil inevitably and causes oily loss, and the damping oil in the cylinder body can be fewer and feweri.Like this, when vehicle jolts frequent and top width of cloth when big, hysteresis is filled up in the circulation of cylinder body internal damping oil, very easily occurs vacuum in the cylinder body, and the idle running phenomenon appears in piston in cylinder body.In addition, the oil gas mixing resultant makes damping oil emulsification in the cylinder body, and the abnormal sound that noise and vibration are sent can appear during by valve block in emulsification damping oil easily, and especially damping oil especially has some setbacks by valve block under low temperature condition, has a strong impact on damping effect.
The model utility content
The purpose of this utility model is in order to overcome the shortcoming and defect that prior art exists, and provides a kind of good damping effect and noise that can reduce vibration damper, improves the monotubular formula vibration damper of ride comfort.
For achieving the above object, the technical solution of the utility model is to include cylindrical shell, piston rod in cylindrical shell one side activity turnover, be arranged in the cylindrical shell and with the piston assembly of piston rod interlock, it is characterized in that: the below with respect to piston assembly in the described cylindrical shell also is provided with floating piston, this piston assembly and floating piston are separated into epicoele with cylinder lumen, lumen and cavity of resorption, epicoele wherein, lumen fills up shock absorber fluid, charge into high-pressure inert gas in the described cavity of resorption, this described piston assembly includes and the adaptive bidirectional piston of cylinder inboard wall sealing slippage, be set with above this bidirectional piston compression valve and this bidirectional piston below be set with rebuilt valve.By this setting, adopt gas oil separation structure, with the volume-variation that fluctuates the motion of compensating piston bar to bring of floating piston, vibration damper stable working, operating noise is little, and eliminated the emulsion of damping oil, in addition, owing to cancelled oil storage cylinder and independent compression valve assembly, be contained in compression valve and rebuilt valve on the bidirectional piston simultaneously, make designs simplification, reduced cost of material, embodied better economic.
Further be provided with is that described cylindrical shell upper end is provided with and the adaptive guider of piston rod guiding.This is provided with the directivity of the turnover cylindrical shell that has guaranteed piston rod.
Further being provided with is to be provided with oil sealing between described guider and the piston rod.This is provided with the sealing that has guaranteed between guider and the piston rod, prevents leakage of oil.
Further being provided with is that described cylindrical shell outer end is set with the elastic buffer piece of joining with the piston rod movable sheath.By this setting, thereby can prevent that piston rod from too entering cylindrical shell and causing the cylindrical shell bottom to be taken place by the fault of piston rod bursting.
It is high pressure nitrogen that described high-pressure inert gas further is set.
Below in conjunction with specification drawings and specific embodiments the utility model is done further introduction.
Description of drawings
Fig. 1 the utility model embodiment structural representation.
Embodiment
Embodiment of the present utility model as shown in Figure 1, include cylindrical shell 1, piston rod 2 in cylindrical shell 1 one side activities turnover, be arranged in the cylindrical shell 1 and with the piston assembly 3 of piston rod 2 interlocks, the below with respect to piston assembly 3 in the described cylindrical shell 1 also is provided with floating piston 4, this piston assembly 3 and floating piston 4 are separated into epicoele 11 with cylinder lumen, lumen 12 and cavity of resorption 13, wherein epicoele 11, lumen 12 fills up shock absorber fluid (scheming not shown), fill high-pressure inert gas in the described cavity of resorption 13, this high-pressure inert gas is a high pressure nitrogen, this described piston assembly 3 includes and the adaptive bidirectional piston 31 of cylindrical shell 1 inner wall sealing slippage, be set with above this bidirectional piston 31 compression valve 32 and this bidirectional piston 31 below be set with rebuilt valve 33.The utility model adopts gas oil separation structure, the volume-variation that fluctuates 2 motions of compensating piston bar to bring with floating piston 4, the vibration damper stable working, operating noise is little, and has eliminated the emulsion of damping oil, in addition, owing to cancelled oil storage cylinder and independent compression valve assembly, compression valve 32 and rebuilt valve 33 are contained on the bidirectional piston 31 simultaneously, make designs simplification, reduce cost of material, embodied better economic.
In addition, the described cylindrical shell of present embodiment 1 upper end portion is provided with and the adaptive guider 5 of piston rod 2 guiding, guaranteed the directivity of the turnover cylindrical shell 1 of piston rod 2, be provided with oil sealing 51 between this described guider 5 and the piston rod 2, guarantee the sealing between guider 5 and the piston rod 2, prevented leakage of oil.
The described cylindrical shell of present embodiment 1 upper end is set with the elastic buffer piece 6 of joining with piston rod 2 movable sheaths, thereby can prevent that so piston rod 2 from too entering cylindrical shell 1 and causing cylindrical shell 1 bottom to be taken place by the fault of piston rod 2 burstings.
Claims (5)
1. monotubular vibration damper, include cylindrical shell, piston rod in cylindrical shell one side activity turnover, be arranged in the cylindrical shell and with the piston assembly of piston rod interlock, it is characterized in that: the below with respect to piston assembly in the described cylindrical shell also is provided with floating piston, this piston assembly and floating piston are separated into epicoele with cylinder lumen, lumen and cavity of resorption, epicoele wherein, lumen fills up shock absorber fluid, charge into high-pressure inert gas in the described cavity of resorption, this described piston assembly includes and the adaptive bidirectional piston of cylinder inboard wall sealing slippage, and the below that the upper fixed of this bidirectional piston is provided with compression valve and this bidirectional piston is set with rebuilt valve.
2. a kind of monotubular vibration damper according to claim 1 is characterized in that: described cylindrical shell upper end is provided with and the adaptive guider of piston rod guiding.
3. a kind of monotubular vibration damper according to claim 2 is characterized in that: be provided with oil sealing between described guider and the piston rod.
4. according to claim 1 or 2 or 3 described a kind of monotubular vibration dampers, it is characterized in that: described cylindrical shell upper end is set with the elastic buffer piece of joining with the piston rod movable sheath.
5. a kind of monotubular vibration damper according to claim 4 is characterized in that: described high-pressure inert gas is a high pressure nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202804705U CN201763878U (en) | 2010-07-30 | 2010-07-30 | Single-barrel shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202804705U CN201763878U (en) | 2010-07-30 | 2010-07-30 | Single-barrel shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201763878U true CN201763878U (en) | 2011-03-16 |
Family
ID=43716483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202804705U Expired - Fee Related CN201763878U (en) | 2010-07-30 | 2010-07-30 | Single-barrel shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201763878U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542033A (en) * | 2013-11-04 | 2014-01-29 | 四川川南减震器集团有限公司 | Single drum shock absorber |
| CN106122341A (en) * | 2016-05-26 | 2016-11-16 | 庆安集团有限公司 | A kind of air spring of unidirectional damping type |
| CN108895110A (en) * | 2018-09-20 | 2018-11-27 | 营山县臻安机电科技研究所 | A kind of hydraulic electricity generation formula electromagnetism damping device |
-
2010
- 2010-07-30 CN CN2010202804705U patent/CN201763878U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542033A (en) * | 2013-11-04 | 2014-01-29 | 四川川南减震器集团有限公司 | Single drum shock absorber |
| CN106122341A (en) * | 2016-05-26 | 2016-11-16 | 庆安集团有限公司 | A kind of air spring of unidirectional damping type |
| CN108895110A (en) * | 2018-09-20 | 2018-11-27 | 营山县臻安机电科技研究所 | A kind of hydraulic electricity generation formula electromagnetism damping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20140730 |
|
| EXPY | Termination of patent right or utility model |