CN202132433U - Piston of damper - Google Patents
Piston of damper Download PDFInfo
- Publication number
- CN202132433U CN202132433U CN201120180587U CN201120180587U CN202132433U CN 202132433 U CN202132433 U CN 202132433U CN 201120180587 U CN201120180587 U CN 201120180587U CN 201120180587 U CN201120180587 U CN 201120180587U CN 202132433 U CN202132433 U CN 202132433U
- Authority
- CN
- China
- Prior art keywords
- hole
- base body
- holes
- throttling
- annular base
- 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 a piston of a damper, which comprises an annular seat body. A piston rod installation through hole and throttle through holes are arranged on the annular seat body. The throttle through holes are inclined straight holes, a current limit block is arranged in each throttle through hole, and flow limit through holes are arranged in the current limit block. The piston of the damper is simple in structure and easy to obtain, can effectively control flow speed of oil liquid, improves working precision of the piston, and prolongs service life of the piston.
Description
Technical field
The utility model relates to the piston field, is specially a kind of shock absorber piston.
Background technique
Concussion when vibration damper mainly is used for suppressing bounce-back after the spring shock-absorbing and from the impact on road surface.Through uneven road surface the time, though the shock-absorbing spring can filter the vibrations on road surface, spring self also has to-and-fro motion, and vibration damper is used for suppressing this spring jump.Vibration damper comprises oil-overflow cylindrical shell, and disposes the piston rod that has piston that stretches in the cylindrical shell, and throttle orifice is arranged on the piston, makes that the oil in two-part space that is separated by piston can complement each other.If fluid flow velocity when the piston is too fast, can cause certain impact to piston, service time is long also can cause piston to be corroded seriously, reduction piston working life.
The model utility content
The purpose of the utility model provides a kind of shock absorber piston, to solve the too fast problem that causes piston reduction in working life of existing technology oil flow.
In order to achieve the above object, the technological scheme that the utility model adopted is:
Shock absorber piston; Include columned annular base body; Have the piston rod installation through holes in the middle of the said annular base body, be arranged in annular base body and also have a plurality of throttling through holes around the piston rod installation through holes, it is characterized in that: said throttling through hole is the inclination straight hole of the two ends undergauge that axially misplaces; And the mutual parallel to an axis of a plurality of throttling through holes; Be respectively arranged with the current limliting piece in each throttling through hole, said current limliting piece outer side wall is close to throttling through hole inner hole wall, axially has the current limliting through hole that communicates with the throttling through hole along the throttling through hole in the current limliting piece.
Described shock absorber piston is characterized in that: the piston rod installation through holes hole face of said annular base body is higher than the annular base body end face at place separately respectively, and also is provided with the annular boss around said piston rod installation through holes on the annular base body end face.
Described shock absorber piston is characterized in that: be positioned at said annular base body outer wall and also be provided with annular base body sulfuration and be the teflon overcoat of one.
The utility model is simple in structure; Be easy to realize, the current limliting piece is set in the throttling through hole, oil flow is controlled through the current limliting through hole in the current limliting piece; When the fluid of excessive velocities passes through the current limliting piece; Can drive the current limliting piece and block throttling through hole one stomidium mouth, fluid can only flow out through the metering hole in the current limliting piece at place, throttling through hole aperture, therefore can control the flow velocity of fluid effectively.The annular base body outer side wall is provided with the teflon overcoat, can strengthen the erosion-resisting ability of annular base body, and the throttling through hole that tilts simultaneously also can avoid the too fast piston precision that causes of fluid flow velocity in throttle orifice to reduce.The utility model has improved the operating accuracy of piston, has also improved the working life of piston.
Description of drawings
Fig. 1 is the utility model structure side sectional view.
Embodiment
As shown in Figure 1.Shock absorber piston; Include columned annular base body 1; Have piston rod installation through holes 2 in the middle of the annular base body 1, be arranged in annular base body 1 and also have a plurality of throttling through holes 3 around piston rod installation through holes 2, throttling through hole 3 is the inclination straight hole of axial dislocation two ends undergauge; And a plurality of throttling through hole 3 mutual parallel to an axiss; Be respectively arranged with current limliting piece 6 in each throttling through hole 3, current limliting piece 6 outer side walls are close to throttling through hole 3 inner hole walls, axially have the current limliting through hole 7 that communicates with throttling through hole 3 along throttling through hole 3 in the current limliting piece 6.
The piston rod installation through holes 2 hole faces of annular base body 1 are higher than annular base body 1 end face at place separately respectively, and also are provided with the annular boss 5 around said piston rod installation through holes 2 on annular base body 1 end face.
Annular base body 1 outer wall also is provided with annular base body 1 sulfuration and is the teflon overcoat 4 of one.
Claims (3)
1. shock absorber piston; Include columned annular base body; Have the piston rod installation through holes in the middle of the said annular base body, be arranged in annular base body and also have a plurality of throttling through holes around the piston rod installation through holes, it is characterized in that: said throttling through hole is the inclination straight hole of the two ends undergauge that axially misplaces; And the mutual parallel to an axis of a plurality of throttling through holes; Be respectively arranged with the current limliting piece in each throttling through hole, said current limliting piece outer side wall is close to throttling through hole inner hole wall, axially has the current limliting through hole that communicates with the throttling through hole along the throttling through hole in the current limliting piece.
2. shock absorber piston according to claim 1; It is characterized in that: the piston rod installation through holes hole face of said annular base body is higher than the annular base body end face at place separately respectively, and also is provided with the annular boss around said piston rod installation through holes on the annular base body end face.
3. shock absorber piston according to claim 1 is characterized in that: be positioned at said annular base body outer wall and also be provided with annular base body sulfuration and be the teflon overcoat of one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120180587U CN202132433U (en) | 2011-05-31 | 2011-05-31 | Piston of damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120180587U CN202132433U (en) | 2011-05-31 | 2011-05-31 | Piston of damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202132433U true CN202132433U (en) | 2012-02-01 |
Family
ID=45521200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120180587U Expired - Fee Related CN202132433U (en) | 2011-05-31 | 2011-05-31 | Piston of damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202132433U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191526A (en) * | 2017-04-13 | 2017-09-22 | 安徽奥泰粉末冶金有限公司 | A kind of damping valve seat |
-
2011
- 2011-05-31 CN CN201120180587U patent/CN202132433U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191526A (en) * | 2017-04-13 | 2017-09-22 | 安徽奥泰粉末冶金有限公司 | A kind of damping valve seat |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20120531 |