CN204312613U - Suspension spring pretension adjustable shock absorber - Google Patents
Suspension spring pretension adjustable shock absorber Download PDFInfo
- Publication number
- CN204312613U CN204312613U CN201420726845.4U CN201420726845U CN204312613U CN 204312613 U CN204312613 U CN 204312613U CN 201420726845 U CN201420726845 U CN 201420726845U CN 204312613 U CN204312613 U CN 204312613U
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- CN
- China
- Prior art keywords
- spring
- cylinder barrel
- piston rod
- support seat
- shock absorber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses suspension spring pretension adjustable shock absorber, comprise cylinder barrel, spring and piston rod, the bottom of cylinder barrel is fixed with fitting seat, piston rod is the movable upper end-hole passing cylinder barrel upwards, the position that piston rod exposes cylinder barrel is provided with dust-proof sheath and buffering blob of viscose, the compression of top to piston rod that spring is located at cylinder barrel supports, it is characterized in that: rest is carried out by upper and lower supporting base in the upper and lower end face of spring, upper support seat is fixedly connected on the top of described piston rod, lower support seat is screwed on external thread sleeve by screw thread, external thread sleeve is fixed by socket at the cylindrical of the top stack shell of described cylinder barrel.The utility model has the advantages that compact structure, reduce costs, and the object that the pretightening force reaching absorber spring can regulate in advance according to vibration frequency, spring is easy to regulate simultaneously.
Description
Technical field
The utility model relate to a kind of install and use in automobile suspension system vibration damper.
Background technique
Existing vibration damper is single structure, and by local restriction, spring is short, and one time damping shock absorption effect is low, and it is large to travel when uneven section vibrations, travels easily tired, easy angle of arrival skew, out of control, the shortcoming that vibration damper working life is short.Chinese patent discloses a kind of suspension spring pretension adjustable shock absorber (publication number: CN 2924163Y), the technology that this patent provides can effectively solve the problems of the technologies described above, but shortcoming is: the stack shell cylindrical of cylinder barrel needs threading to be threaded with adjusting washer (disk), so the wall thickness of cylinder barrel needs suitably to increase, so cylinder barrel outside diameter becomes large, thus causing vibration damper boundary dimension to become large, cost improves; Be exactly in addition, when regulating spring, because spring force is very large, the back-up ring of limit spring and regulate between bung flange and have larger friction, when spring regulates back-up ring, spring easily with regulate bung flange synchronous axial system, make adjustment become difficult.
Summary of the invention
In view of the deficiencies in the prior art, the utility model provides a kind of compact structure, reduces costs, and spring is easy to the suspension spring pretension adjustable shock absorber of adjustment simultaneously.
The utility model takes following technological scheme:
Suspension spring pretension adjustable shock absorber, comprise cylinder barrel, spring and piston rod, the bottom of cylinder barrel is fixed with fitting seat, piston rod is the movable upper end-hole passing cylinder barrel upwards, the position that piston rod exposes cylinder barrel is provided with dust-proof sheath and buffering blob of viscose, the compression of top to piston rod that spring is located at cylinder barrel supports, it is characterized in that: rest is carried out by upper and lower supporting base in the upper and lower end face of spring, upper support seat is fixedly connected on the top of described piston rod, lower support seat is screwed on external thread sleeve by screw thread, external thread sleeve is fixed by socket at the cylindrical of the top stack shell of described cylinder barrel.
The upper and lower end face of described spring and be provided with lower spring cup between supporting base up and down, described lower spring cup and lower support seat mutually against lower end surface be provided with annular protrusion.
After adopting technique scheme, avoid at cylinder barrel Excircle machining outside thread by arranging of external thread sleeve, the wall thickness of cylinder barrel does not just need to increase, and cylinder barrel outside diameter also can not change, so vibration damper boundary dimension also can not change, reduces cost; Also have, lower spring cup (being equivalent to the back-up ring in background patents technology) and lower support seat (being equivalent to the adjustment bung flange in background patents technology) mutually against lower end surface be provided with annular protrusion, like this when regulating spring, pivoting friction between lower spring cup and lower support seat is less, when spring regulates lower spring cup, spring would not with lower support seat synchronous axial system, make adjustment become convenient.
Accompanying drawing explanation
The utility model has following accompanying drawing:
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in the figure, suspension spring pretension adjustable shock absorber of the present utility model, comprise cylinder barrel 6, spring 4 and piston rod 3, the bottom of cylinder barrel 6 is fixed with fitting seat 11, piston rod 3 is the movable upper end-hole passing cylinder barrel 6 upwards, the position that piston rod 3 exposes cylinder barrel 6 is provided with dust-proof sheath 5 and buffering blob of viscose 2, the compression of top to piston rod 3 that spring 4 is located at cylinder barrel 6 supports, rest is carried out by upper support seat 1 and lower support seat 10 in the upper and lower end face of spring 4, upper support seat 1 is fixedly connected on the top of described piston rod 3, described upper support seat 1 is bowl-type cover plate, bowl-type cover plate tips upside down on directly over rubber sheath 5 and piston rod 3 connecting part, avoid dust and enter into cylinder barrel inside by the connecting part of rubber sheath and piston rod, play effective dust-proof effect, improve the working life of vibration damper, lower support seat 10 is screwed on external thread sleeve 7 by screw thread, external thread sleeve 7 is fixed by socket at the cylindrical of the top stack shell of described cylinder barrel 6, spot-welded is adopted between external thread sleeve 7 and cylinder barrel 6, the upper and lower end face of described spring 4 and be provided with upper spring seat and lower spring cup 8 between supporting base up and down, described lower spring cup 8 and lower support seat 10 mutually against lower end surface be provided with annular protrusion 9, described lower support seat 10 selects slim nut, and slim nut arranges two.
Above-mentioned vibration damper in use, first by the slim nut of turn cylinder barrel upper end, by the length adjustment of spring to desired location, is namely adjusted pretightening force needed for spring, then by slim nut below, can not be shifted during to ensure telescopic spring.Then by fitting seat, vibration damper is loaded automotive suspension, during Motor Vehicle vibrations, vibration damper plays its damping, buffering function by the expanding-contracting action of the piston in cylinder barrel and spring.
Claims (2)
1. suspension spring pretension adjustable shock absorber, comprise cylinder barrel, spring and piston rod, the bottom of cylinder barrel is fixed with fitting seat, piston rod is the movable upper end-hole passing cylinder barrel upwards, the position that piston rod exposes cylinder barrel is provided with dust-proof sheath and buffering blob of viscose, the compression of top to piston rod that spring is located at cylinder barrel supports, it is characterized in that: rest is carried out by upper and lower supporting base in the upper and lower end face of spring, upper support seat is fixedly connected on the top of described piston rod, lower support seat is screwed on external thread sleeve by screw thread, external thread sleeve is fixed by socket at the cylindrical of the top stack shell of described cylinder barrel.
2. suspension spring pretension adjustable shock absorber as claimed in claim 1, is characterized in that: the upper and lower end face of described spring and be provided with lower spring cup between supporting base up and down, described lower spring cup and lower support seat mutually against lower end surface be provided with annular protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420726845.4U CN204312613U (en) | 2014-11-28 | 2014-11-28 | Suspension spring pretension adjustable shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420726845.4U CN204312613U (en) | 2014-11-28 | 2014-11-28 | Suspension spring pretension adjustable shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204312613U true CN204312613U (en) | 2015-05-06 |
Family
ID=53134931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420726845.4U Expired - Fee Related CN204312613U (en) | 2014-11-28 | 2014-11-28 | Suspension spring pretension adjustable shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204312613U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043597A (en) * | 2019-04-11 | 2019-07-23 | 河南垚栖杰科技有限公司 | A kind of vehicle-mounted balancing suspension system |
-
2014
- 2014-11-28 CN CN201420726845.4U patent/CN204312613U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043597A (en) * | 2019-04-11 | 2019-07-23 | 河南垚栖杰科技有限公司 | A kind of vehicle-mounted balancing suspension system |
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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: 20150506 Termination date: 20151128 |