CN103016606A - Upside-down shock absorber - Google Patents
Upside-down shock absorber Download PDFInfo
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- CN103016606A CN103016606A CN2012105520198A CN201210552019A CN103016606A CN 103016606 A CN103016606 A CN 103016606A CN 2012105520198 A CN2012105520198 A CN 2012105520198A CN 201210552019 A CN201210552019 A CN 201210552019A CN 103016606 A CN103016606 A CN 103016606A
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- active chamber
- piston
- shock absorber
- breeches pipe
- pressure cylinder
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Abstract
An upside-down shock absorber provided by the invention comprises a bottom barrel, a sleeve and a fork tube, the front end of the fork tube is fixed on the bottom barrel, the rear end of the fork tube is sleeved in the sleeve, the fork tube is of a closed structure, a connecting rod is coaxially fixed in the sleeve, the front end of the connecting rod is extended into the fork tube from the rear bottom of the fork tube, a piston and a shock-absorbing spring are fixed on the front end of the connecting rod, and are arranged in the fork tube, and the piston divides the fork tube into a first working chamber and a second working chamber which communicate with each other; and the upside-down shock absorber also comprises a high-pressure cylinder assembly which is fixed in the fork tube and is used for eliminating the indicated idle stroke phenomenon of the shock absorber. The upside-down shock absorber effectively eliminates the indicated idle stroke phenomenon caused by the cutoff of flowing oil, and effectively guarantees the stability of damping force in the fork tube, consequently, the stable and lasting shock-absorbing effect of the upside-down shock absorber is guaranteed, and thereby the stability of a vehicle running on a bumpy road and the comfort of the driver and passengers are guaranteed.
Description
Technical field
The present invention relates to a kind of damping device for vehicle, relate in particular to a kind of inversion shock absorber.
Background technique
The application of vibration damper in automobile is very general, extensively adopt hydraulic damper in the automobile suspension system, when vehicle frame and vehicle bridge are done when moving back and forth in the cylinder barrel (or breeches pipe) of reciprocal relative movement youngster piston at vibration damper, fluid in the vibration damper housing just flows into another inner chamber from inner chamber by some narrow holes repeatedly, at this moment, the interior friction of the friction of liquid and inwall and fluid molecule just forms the damping force to vibration, in existing hydraulic shock absorber, comprise positively fixed type vibration damper and inversion shock absorber, and existing inversion shock absorber generally comprises end cylinder, breeches pipe, sleeve, connecting rod and piston, although the inversion shock absorber of this structure can play damping effect, but in use the fluid in the breeches pipe mixes rear when flowing through piston with air, its damping force is unstable, the easily generation of flowing of fluid is interrupted and is caused and show merit idle running phenomenon, vibration damper is fluctuation of service in follow-up use, damping effect reduces greatly, thereby affect vehicle smoothness under steam, and existing shock absorber structure is complicated, efficiency of assembling is low, and manufacturing cost is high.
Therefore, need to propose a kind of novel inversion shock absorber, that can effectively eliminate vibration damper shows merit idle running phenomenon, ensure the stable of damping force, thereby guaranteed the smoothness of the stable and Vehicle Driving Cycle of vibration damper, and simple in structure, easily manufactured, with low cost.
Summary of the invention
In view of this, a kind of inversion shock absorber provided by the invention, that can effectively eliminate vibration damper shows merit idle running phenomenon, ensure the stable of damping force, thereby guaranteed the smoothness of the stable and Vehicle Driving Cycle of vibration damper, and simple in structure, easily manufactured, with low cost.
A kind of inversion shock absorber provided by the invention, comprise that end cylinder, sleeve and front end are fixedly installed on the breeches pipe that is placed in the enclosed construction of sleeve in end cylinder and the rear end, the coaxial connecting rod that is fixedly installed of described sleeve, the front end that the front end of described connecting rod stretches into breeches pipe and described connecting rod from the bottom, rear end of described breeches pipe is fixedly installed piston and damping spring, and described piston and damping spring all are arranged at the first active chamber and the second active chamber that described breeches pipe is inner and described piston is interconnected breeches pipe isolation formation; Also comprise the high-pressure cylinder assembly that shows merit idle running phenomenon that is used for eliminating vibration damper that is fixedly installed in the described breeches pipe;
Further, described high-pressure cylinder assembly comprises that the rear end is the high pressure cylinder body of seal structure and is arranged at the interior floating piston of high pressure cylinder body, described floating piston forms the 3rd active chamber that is communicated with described the first active chamber and the 4th airtight active chamber, the interior gassy of described the 4th active chamber with the isolation of described high pressure cylinder body; The front end of described high pressure cylinder body is fixedly installed on the front end of described breeches pipe, and the rear end bottom outside of described high pressure cylinder body is fixedly connected with described damping spring;
Further, described piston is provided with for the through hole with the first active chamber and the connection of the second active chamber, and the axis of described through hole is parallel with the axis of piston;
Further, all be filled with damping fluid in described the first active chamber, the second active chamber and the 3rd active chamber;
Further, described breeches pipe is fixedly installed and makes it form front cover and the rear end cover of seal structure, and described front cover is fixedly connected with the front end of described high pressure cylinder body, and described rear end cover hermetically sealed case is in described connecting rod;
Further, the front end of described connecting rod is coaxial is fixedly installed the place ahead that damping spring land and described damping spring land are positioned at piston.
Beneficial effect of the present invention: inversion shock absorber provided by the invention, by the front end at breeches pipe the high-pressure cylinder assembly is set, when piston advances forward, fluid in the first active chamber flows to the second active chamber by through hole, simultaneously because pressure-acting, thereby part fluid is pressed into and promotes floating piston end motion behind the high pressure cylinder body in the 3rd active chamber, make the gas compression in the 4th active chamber form pressurized gas, when piston moves backward, travel forward under the pressure of the pressurized gas of floating piston in the 4th active chamber, thereby the fluid in the 3rd active chamber is expressed in the first active chamber and then the rear end of piston toward breeches pipe promoted, fluid in the second active chamber is flow back in the first active chamber, make piston get back to the rear end of breeches pipe, effectively eliminated since the pressure-acting of the fluid in the second active chamber so that piston is difficult to get back to the breeches pipe rear end causes that the fluid flow disruption causes and show merit idle running phenomenon, effectively guaranteed the stability of breeches pipe internal damping power, thereby guarantee that inversion shock absorber stablizes lasting damping effect, and then guaranteed that vehicle is in the stationarity of the road traveling that jolts and driver and passenger's travelling comfort, and, simple and stable structure of the present invention, easily manufactured, with low cost.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples:
Fig. 1 is structural representation of the present invention.
Embodiment
Fig. 1 is structural representation of the present invention, as shown in the figure, a kind of inversion shock absorber provided by the invention, comprise end cylinder 1, sleeve 9 and front end are fixedly installed on the breeches pipe 7 of the enclosed construction that is placed in sleeve 9 in end cylinder 1 and the rear end, the described sleeve 9 coaxial connecting rods 15 that are fixedly installed, the front end that the front end of described connecting rod 15 stretches into breeches pipe 7 and described connecting rod 15 from the bottom, rear end of described breeches pipe 7 is fixedly installed piston 11 and damping spring 10, and described piston 11 and damping spring 10 all are arranged at described breeches pipe 7 inside and described piston 11 forms the first active chamber 8 and the second active chamber 13 that is interconnected with breeches pipe 7 isolation; Also comprise the high-pressure cylinder assembly that shows merit idle running phenomenon that is used for eliminating vibration damper that is fixedly installed in the described breeches pipe 7; Described the first active chamber 8, the second active chamber 13 and the 3rd active chamber 4 interior damping fluid that all are filled with, the interior wall friction of described fluid and breeches pipe 7 form the damping force to vibration; Inversion shock absorber provided by the invention, by the front end at breeches pipe the high-pressure cylinder assembly is set, when piston advances forward, fluid in the first active chamber flows to the second active chamber by through hole, simultaneously because pressure-acting, thereby part fluid is pressed into and promotes floating piston end motion behind the high pressure cylinder body in the 3rd active chamber, make the gas compression in the 4th active chamber form pressurized gas, when piston moves backward, travel forward under the pressure of the pressurized gas of floating piston in the 4th active chamber, thereby the fluid in the 3rd active chamber is expressed in the first active chamber and then the rear end of piston toward breeches pipe promoted, fluid in the second active chamber is flow back in the first active chamber, make piston get back to the rear end of breeches pipe, effectively eliminated since the pressure-acting of the fluid in the second active chamber so that piston is difficult to get back to the breeches pipe rear end causes that the fluid flow disruption causes and show merit idle running phenomenon, effectively guaranteed the stability of breeches pipe internal damping power, thereby guarantee that inversion shock absorber stablizes lasting damping effect, and then guaranteed that vehicle is in the stationarity of the road traveling that jolts and driver and passenger's travelling comfort, and, simple and stable structure of the present invention, easily manufactured, with low cost.
In the present embodiment, described high-pressure cylinder assembly comprises that the rear end is the high pressure cylinder body 5 and the floating piston 16 that is arranged in the high pressure cylinder body 5 of seal structure, described floating piston 16 forms the 3rd active chamber 4 that is communicated with described the first active chamber 8 and the 4th airtight active chamber 6, described the 4th active chamber 6 interior gassies with 5 isolation of described high pressure cylinder body; The front end of described high pressure cylinder body 5 is fixedly installed on the front end of described breeches pipe 7, and the rear end bottom outside of described high pressure cylinder body 5 is fixedly connected with described damping spring 10; This structure, thereby making fluid promote floating piston in piston advances forward moves backward with the formation of the gas in the 4th active chamber pressurized gas, when the pressure that is beneficial to pressurized gas is replied piston the fluid in the second active chamber is expressed into the first active chamber, guarantee the lasting mobile of fluid, that has effectively eliminated vibration damper shows merit idle running phenomenon, guarantees the stable of damping force.
In the present embodiment, described piston 11 is provided with for the through hole 12 with the first active chamber 8 and 13 connections of the second active chamber, and the axis of described through hole 12 is parallel with the axis of piston 11; This structure is beneficial to fluid is exchanged between the first active chamber and the second active chamber, guarantees the lasting smooth flow of fluid, eliminates and shows merit idle running phenomenon, guarantees the stable of damping force.
In this enforcement, described breeches pipe 7 is fixedly installed and makes it form front cover 3 and the rear end cover 14 of seal structure, described front cover 3 is fixedly connected with the front end of described high pressure cylinder body 5, can adopt the mode of welding, certainly, other can guarantee the Placement of structural strength and sealability, all can realize function of the present invention, and the mode that front cover 3 is bolted is fixed in breeches pipe 7 on the end cylinder, be beneficial to and make and assembling, improve and make efficient, described rear end cover 14 hermetically sealed cases are in described connecting rod 15; Certainly, be provided with seal washer at front cover, rear end cover and floating piston; This structure is beneficial to assembling of the present invention, improves and makes efficient, guarantees the sealing of the cavity in the breeches pipe, improves damping performance.
In the present embodiment, the front end of described connecting rod 15 is coaxial to be fixedly installed the place ahead that damping spring land 17 and described damping spring land 17 are positioned at piston 11, and linkage structure is stable, guarantees that vibration damper works continually and steadily.
In the present embodiment, before the A direction is among Fig. 1, after the B direction is, the front end rear end of described each parts all with reference to A among Fig. 1 to B to definition.
Explanation is at last, above embodiment is only unrestricted in order to technological scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technological scheme of the present invention, and not breaking away from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (6)
1. inversion vibration damper, it is characterized in that: comprise that end cylinder, sleeve and front end are fixedly installed on the breeches pipe that is placed in the enclosed construction of sleeve in end cylinder and the rear end, the coaxial connecting rod that is fixedly installed of described sleeve, the front end that the front end of described connecting rod stretches into breeches pipe and described connecting rod from the bottom, rear end of described breeches pipe is fixedly installed piston and damping spring, and described piston and damping spring all are arranged at the first active chamber and the second active chamber that described breeches pipe is inner and described piston is interconnected breeches pipe isolation formation; Also comprise the high-pressure cylinder assembly that shows merit idle running phenomenon that is used for eliminating vibration damper that is fixedly installed in the described breeches pipe.
2. described inversion shock absorber according to claim 1, it is characterized in that: described high-pressure cylinder assembly comprises that the rear end is the high pressure cylinder body of seal structure and is arranged at the interior floating piston of high pressure cylinder body, described floating piston forms the 3rd active chamber that is communicated with described the first active chamber and the 4th airtight active chamber, the interior gassy of described the 4th active chamber with the isolation of described high pressure cylinder body; The front end of described high pressure cylinder body is fixedly installed on the front end of described breeches pipe, and the rear end bottom outside of described high pressure cylinder body is fixedly connected with described damping spring.
3. described inversion shock absorber according to claim 2 is characterized in that: described piston is provided with the through hole that is communicated with for the first active chamber and the second active chamber, and the axis of described through hole is parallel with the axis of piston.
4. described inversion shock absorber according to claim 3 is characterized in that: all be filled with damping fluid in described the first active chamber, the second active chamber and the 3rd active chamber.
5. described inversion shock absorber according to claim 4, it is characterized in that: described breeches pipe is fixedly installed and makes it form front cover and the rear end cover of seal structure, described front cover is fixedly connected with the front end of described high pressure cylinder body, and described rear end cover hermetically sealed case is in described connecting rod.
6. described inversion shock absorber according to claim 5 is characterized in that: the front end of described connecting rod is coaxial to be fixedly installed the place ahead that damping spring land and described damping spring land are positioned at piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210552019.8A CN103016606B (en) | 2012-12-18 | 2012-12-18 | Upside-down shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210552019.8A CN103016606B (en) | 2012-12-18 | 2012-12-18 | Upside-down shock absorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103016606A true CN103016606A (en) | 2013-04-03 |
| CN103016606B CN103016606B (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210552019.8A Active CN103016606B (en) | 2012-12-18 | 2012-12-18 | Upside-down shock absorber |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498886A (en) * | 2013-08-29 | 2014-01-08 | 泰州市腾信机械有限公司 | Structure of single front shock absorber |
| CN104405820A (en) * | 2014-11-24 | 2015-03-11 | 重庆市亮影工贸有限公司 | Damper connecting body |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3331663A1 (en) * | 1983-09-02 | 1985-03-21 | Fichtel & Sachs Ag, 8720 Schweinfurt | Spring strut for a vehicle, especially for a motor cycle |
| CN2500594Y (en) * | 2002-01-11 | 2002-07-17 | 重庆长安减震器有限公司 | Inverted front vibration absorber |
| CN2900333Y (en) * | 2006-03-31 | 2007-05-16 | 陆杰 | Changeable front shock damper of motorcycle |
| CN201013823Y (en) * | 2006-12-31 | 2008-01-30 | 宁波博雅减震器制造有限公司 | Barrel type hydraulic shock absorber with floating piston |
| CN203214752U (en) * | 2012-12-18 | 2013-09-25 | 重庆渝安创新科技有限公司 | Floating piston inverted shock absorber |
-
2012
- 2012-12-18 CN CN201210552019.8A patent/CN103016606B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3331663A1 (en) * | 1983-09-02 | 1985-03-21 | Fichtel & Sachs Ag, 8720 Schweinfurt | Spring strut for a vehicle, especially for a motor cycle |
| CN2500594Y (en) * | 2002-01-11 | 2002-07-17 | 重庆长安减震器有限公司 | Inverted front vibration absorber |
| CN2900333Y (en) * | 2006-03-31 | 2007-05-16 | 陆杰 | Changeable front shock damper of motorcycle |
| CN201013823Y (en) * | 2006-12-31 | 2008-01-30 | 宁波博雅减震器制造有限公司 | Barrel type hydraulic shock absorber with floating piston |
| CN203214752U (en) * | 2012-12-18 | 2013-09-25 | 重庆渝安创新科技有限公司 | Floating piston inverted shock absorber |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498886A (en) * | 2013-08-29 | 2014-01-08 | 泰州市腾信机械有限公司 | Structure of single front shock absorber |
| CN104405820A (en) * | 2014-11-24 | 2015-03-11 | 重庆市亮影工贸有限公司 | Damper connecting body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103016606B (en) | 2015-07-01 |
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Effective date of registration: 20220328 Address after: 401220 No. 8, Qixin East Road, Yanjia street, Changshou District, Chongqing Patentee after: Chongqing Yu'an intelligent suspension Co.,Ltd. Address before: 400030 Fenghuang Town, Shapingba District, Chongqing Patentee before: CHONGQING YU'AN INNOVATION TECHNOLOGY Co.,Ltd. |
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