CN103089897B - A kind of shock absorber piston rod assembly - Google Patents
A kind of shock absorber piston rod assembly Download PDFInfo
- Publication number
- CN103089897B CN103089897B CN201310021114.XA CN201310021114A CN103089897B CN 103089897 B CN103089897 B CN 103089897B CN 201310021114 A CN201310021114 A CN 201310021114A CN 103089897 B CN103089897 B CN 103089897B
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- China
- Prior art keywords
- piston rod
- buffing pad
- check ring
- rod assembly
- annular groove
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Abstract
The invention discloses a kind of shock absorber piston rod assembly, be made up of piston rod, buffing pad and check ring, described piston rod is provided with annular groove, described check ring is arranged in the annular groove of piston rod, the outstanding piston rod surface of a check ring part, on the piston rod, buffing pad endoporus is provided with step to described buffing pad suit, buffing pad endoporus step is stuck in check ring projection, and buffing pad afterbody is fixedly connected with between piston rod.This piston rod assembly adopts check ring and the motion of buffing pad endoporus step restriction buffing pad when being subject to impact force action, and avoid the situation that buffing pad comes off, add the working life of piston rod assembly, whole piston rod assembly making and installation is simple.
Description
Technical field
The present invention relates to a kind of vibration damper accessory, particularly a kind of piston rod assembly for vibration damper.
Background technique
Vibration damper absorbs the energy of road shocks generation in vehicle travel process by its damping force produced, in order to the damping force that lasting maintenance is larger, usually flexible limiting stopper is set in vibration damper, in order to limiting stopper is arranged on vibration damper, need on shock absorber piston rod, fixedly mount a buffing pad to be used for holding limiting stopper, therefore, buffing pad plays the effect of restriction limiting stopper motion, in vibration damper working procedure, buffing pad is often subject to larger repeated stock active force.
Disclose a kind of shock absorber piston rod assembly in China model utility CN201539530, comprise piston rod and spacing ring seat, limited ring cover for seat dress on the piston rod, is linked together by spot welding and piston rod.Because the current quality to spot welding also lacks reliable nondestructive detecting method, welding quality can only lean on the destructive test of technological test and workpiece sampling to check, thus cannot ensure the welding quality of every part piston rod assembly.The lap joint of spot welding not only increases the weight of piston rod assembly, and because forming angle around nugget between two plates, cause the tensile strength of tack-weld and fatigue strength lower, be subject under impact force action repeatedly, cause buffing pad to come off, thus affect the working life of piston rod assembly.Plant capacity in addition required for spot welding is large, and automatic and mechanical degree requires high, equipment cost is dropped into higher, adds the manufacture cost of piston rod assembly.
Summary of the invention
It is simple that the technical problem to be solved in the present invention is to provide a kind of structure, long service life, the simple shock absorber piston rod assembly of making and installation.
For solving the problems of the technologies described above, present invention employs a kind of shock absorber piston rod assembly, be made up of piston rod, buffing pad and check ring, described piston rod is provided with annular groove, and described check ring is arranged in the annular groove of piston rod, the outstanding piston rod surface of a check ring part, described buffing pad suit on the piston rod, buffing pad endoporus is provided with step, and buffing pad endoporus step is stuck in check ring projection, and buffing pad afterbody is fixedly connected with between piston rod.
Described buffing pad afterbody to be fixedly connected with piston rod by pressing.
Adopt press at 4 between described buffing pad afterbody and piston rod.
The beneficial effect that the present invention has: this piston rod assembly adopts check ring and the buffing pad endoporus step restriction motion of buffing pad when being subject to impact force action, and structure is simple, and the situation avoiding that buffing pad comes off, add the working life of piston rod assembly; Process annular groove on the piston rod, be fitted in groove by check ring, then overlapped on the piston rod by the buffing pad processed, whole piston rod assembly making and installation is simple.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is partial schematic diagram of the present invention;
Fig. 3 is buffing pad structural representation of the present invention.
In figure: 1, piston rod; 2, buffing pad; 3, check ring; 4, annular groove; 5, buffing pad afterbody; 6, buffing pad endoporus; 7, buffing pad endoporus step; 8, check ring projection; 9, limiting stopper.
Embodiment
As shown in Figures 1 to 3, for a kind of shock absorber piston rod assembly, be made up of piston rod 1, buffing pad 2 and check ring 3, wherein piston rod 1 is provided with annular groove 4, check ring is fixedly mounted in the annular groove 4 of piston rod 1, makes check ring 3 part give prominence on piston rod 1 surface; Buffing pad 2 is sleeved on piston rod 1, and buffing pad endoporus 6 is provided with step 7, and buffing pad endoporus step 7 is stuck in check ring projection 8, is fixedly connected with between buffing pad afterbody 5 with piston rod 1.
When this piston rod assembly is installed, first on the piston rod 1 processed, process an annular groove 4, check ring 3 is arranged in the annular groove 4 of piston rod 1, due to the elasticity of check ring 3 self, mounted check ring 3 will be fixed in annular groove 4, make check ring 3 part be stuck in annular groove 4, outstanding piston rod 1 surface of a part simultaneously.In buffing pad endoporus 6, process a step 7, be sleeved on piston rod 1 by the buffing pad 2 processed, buffing pad endoporus step 7 is stuck in check ring projection 8, thus limits the motion of buffing pad 2.Finally be fixed on piston rod 1 on by pressing by buffing pad 2 at buffing pad afterbody 5, buffing pad 2 does not allow movement and the rotation in any direction after pressing and having closed up.In actual production process, adopt at 4 press, four riveting points are evenly distributed on buffing pad afterbody 5 surrounding.In use, be arranged on the buffing pad 2 fixed by limiting stopper 9, buffing pad 2 is subject to the impact force that limiting stopper 9 brings, and due to the restriction of check ring 3 and buffing pad endoporus step 7, makes buffing pad 2 can bear larger repeated stock active force.
This piston rod assembly adopts check ring 3 and buffing pad endoporus step 7 to limit the motion of buffing pad 2 when being subject to impact force action, and structure is simple, and avoids the situation that buffing pad 2 comes off, and adds the working life of piston rod assembly; Piston rod 1 is processed annular groove 4, is fitted in groove by check ring 3, then be sleeved on piston rod 1 by the buffing pad 2 processed, whole piston rod assembly making and installation is simple.
Claims (3)
1. a shock absorber piston rod assembly, it is characterized in that: by piston rod (1), buffing pad (2) and check ring (3) composition, described piston rod (1) is provided with annular groove (4), described check ring (3) is arranged in the annular groove (4) of piston rod (1), outstanding piston rod (1) surface of check ring (3) part, described buffing pad (2) is sleeved on piston rod (1), buffing pad endoporus (6) is provided with step (7), buffing pad endoporus step (7) is stuck in check ring projection (8), be fixedly connected with between buffing pad afterbody (5) with piston rod (1).
2. piston rod assembly as claimed in claim 1, is characterized in that: described buffing pad afterbody (5) to be fixedly connected with piston rod (1) by pressing.
3. piston rod assembly as claimed in claim 2, is characterized in that: adopt press at 4 between described buffing pad afterbody (5) and piston rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310021114.XA CN103089897B (en) | 2013-01-21 | 2013-01-21 | A kind of shock absorber piston rod assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310021114.XA CN103089897B (en) | 2013-01-21 | 2013-01-21 | A kind of shock absorber piston rod assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103089897A CN103089897A (en) | 2013-05-08 |
| CN103089897B true CN103089897B (en) | 2015-12-02 |
Family
ID=48202862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310021114.XA Active CN103089897B (en) | 2013-01-21 | 2013-01-21 | A kind of shock absorber piston rod assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103089897B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5480128A (en) * | 1995-01-06 | 1996-01-02 | Diebolt International, Inc. | Gas spring with threaded mount and method of producing the same |
| CN2814007Y (en) * | 2005-08-10 | 2006-09-06 | 万向钱潮股份有限公司 | Vibration-damper piston rod assembly |
| CN201539530U (en) * | 2009-11-30 | 2010-08-04 | 李文权 | Piston rod component of shock absorber |
| CN201866155U (en) * | 2010-12-06 | 2011-06-15 | 芜湖艾科汽车技术有限公司 | Fixing device for piston rod positioning sleeve |
| CN203051599U (en) * | 2013-01-21 | 2013-07-10 | 成都九鼎科技(集团)有限公司 | Piston rod component of shock absorber |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002013577A (en) * | 2000-06-29 | 2002-01-18 | Tokico Ltd | Rod stopper device and manufacturing method thereof |
| JP5007872B2 (en) * | 2005-03-24 | 2012-08-22 | 日立オートモティブシステムズ株式会社 | Single cylinder hydraulic shock absorber and bracket mounting method for single cylinder hydraulic shock absorber |
-
2013
- 2013-01-21 CN CN201310021114.XA patent/CN103089897B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5480128A (en) * | 1995-01-06 | 1996-01-02 | Diebolt International, Inc. | Gas spring with threaded mount and method of producing the same |
| CN2814007Y (en) * | 2005-08-10 | 2006-09-06 | 万向钱潮股份有限公司 | Vibration-damper piston rod assembly |
| CN201539530U (en) * | 2009-11-30 | 2010-08-04 | 李文权 | Piston rod component of shock absorber |
| CN201866155U (en) * | 2010-12-06 | 2011-06-15 | 芜湖艾科汽车技术有限公司 | Fixing device for piston rod positioning sleeve |
| CN203051599U (en) * | 2013-01-21 | 2013-07-10 | 成都九鼎科技(集团)有限公司 | Piston rod component of shock absorber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103089897A (en) | 2013-05-08 |
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| C14 | Grant of patent or utility model | ||
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