CN202545652U - Anti-scratching clutch booster - Google Patents
Anti-scratching clutch booster Download PDFInfo
- Publication number
- CN202545652U CN202545652U CN201220075881XU CN201220075881U CN202545652U CN 202545652 U CN202545652 U CN 202545652U CN 201220075881X U CN201220075881X U CN 201220075881XU CN 201220075881 U CN201220075881 U CN 201220075881U CN 202545652 U CN202545652 U CN 202545652U
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- CN
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- Prior art keywords
- piston
- hydraulic cylinder
- seal ring
- ring
- wear
- 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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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The utility model discloses an anti-scratching clutch booster which comprises a hydraulic cylinder, wherein a piston is arranged in the hydraulic cylinder; the piston comprises a piston body; and the inner wall of the hydraulic cylinder or the peripheral surface of the piston body is provided with a seal ring. The utility model is characterized in that both sides of the piston body on the axial line of the seal ring are fixedly provided with a wear-resistant guide ring, which moves along with the piston body and is matched with the inner wall of the hydraulic cylinder in a guide motion mode; and the outer diameter of the wear-resistant guide ring is greater than the outer diameter of the piston body, and less than or equal to the diameter of the inner hole of the hydraulic cylinder. When the seal ring is stressed and compressed, the wear-resistant guide ring contacts the inner wall of the hydraulic cylinder, thereby preventing the piston body from directly contacting the inner wall of the hydraulic cylinder, and further avoiding the problem of scratching between the piston body and the hydraulic cylinder.
Description
Technical field
The utility model relates to the booster that a kind of clutch of anti-scraped finish is used.
Background technique
In the existing technology; Clutch booster comprises hydraulic cylinder; Be provided with in the hydraulic cylinder and be used to promote push rod and move the piston that cooperates with the endoporus sealing of hydraulic cylinder; Piston comprises the piston only of metal material, and piston only moves with the endoporus sealing of hydraulic cylinder through the sealing rubber ring that is provided with on its outer circumferential face and cooperates, when clutch booster is worked; Because push rod receives the center line of force direction and piston only always not to be in coincidence status; The clutch booster sealing rubber ring is compressed, and the metallic dust and on cylinder wall, form cut of coming off the scraped finish of metal and metal appears and in piston only and the hydraulic cylinder inwall that causes clutch booster, metallic dust that these come off and cut can the accelerating piston body on the wearing and tearing of seal ring; Can cause the seal ring breakage to cause the seal failure leakage of oil when serious, influence the working life of clutch booster.
The model utility content
The purpose of the utility model is to provide a kind of anti-scraped finish clutch booster, with the problem of piston only and the scraped finish of oil hydraulic cylinder inwall in the solution existing technology.
For realizing above-mentioned purpose; The utility model adopts following technological scheme: a kind of anti-scraped finish clutch booster; Comprise hydraulic cylinder, be provided with piston in the hydraulic cylinder, piston comprises piston only; On the inwall of oil hydraulic cylinder or the outer circumferential face of piston only be provided with seal ring; Piston only both sides on the axis of seal ring are installed with piston only and move and the mobile wear-resistant guiding ring that cooperates of hydraulic cylinder inwall guiding, and the external diameter of wear-resistant guiding ring is less than or equal to the diameter of hydraulic cylinder endoporus greater than the external diameter of piston only.
Described seal ring is arranged on the intermediate portion of the outer circumferential face of piston only, and the wear-resistant guiding ring is arranged on the two ends of piston only outer circumferential face.
Described seal ring is the y-type seal ring of a pair of opposing setting.
Described y-type seal ring is arranged on the piston only through being embedded in the corresponding seal ring annular groove that is provided with of intermediate portion of the outer circumferential face of piston only respectively.
The wear-resistant guiding ring is arranged on the piston only in the corresponding guide ring annular groove that is provided with through being embedded on the outer circumferential face of piston only respectively.
A kind of anti-scraped finish clutch booster of the utility model; When seal ring receives force compresses; The wear-resistant guiding ring contacts with the inwall of oil hydraulic cylinder, has avoided piston only directly to contact with the inwall of oil hydraulic cylinder, and then has avoided the problem of piston only and oil hydraulic cylinder scraped finish.
Further, seal ring is arranged on the piston only, makes the more compact structure of booster.
Description of drawings
Fig. 1 is the embodiment's of the utility model a structural representation.
Embodiment
A kind of embodiment of anti-scraped finish clutch booster; As shown in Figure 1, comprise hydraulic cylinder 4, be provided with the piston that is used to promote the booster push rod in the hydraulic cylinder 4; Piston comprises piston only 1; The intermediate portion of the outer circumferential face of piston only 1 is provided with two seal ring annular grooves, being embedded in the closure gasket groove of correspondence of a pair of y-type seal ring 3 opposing settings, and piston only 1 cooperates with the endoporus hydrodynamic reciprocating sealing of hydraulic cylinder 4 through y-type seal ring 3; The outer circumferential face of piston only 1 is respectively arranged with the guide ring annular groove in the two ends of the both sides of y-type seal ring 3; Be embedded with the wear-resistant guiding ring 2 that cooperates with hydraulic cylinder 4 inwalls guiding that moves with piston only 1 in the guide ring annular groove respectively, the external diameter of wear-resistant guiding ring 2 is less than or equal to the diameter of hydraulic cylinder 4 endoporus greater than the external diameter of piston only 1.
The foregoing description in use; When push rod do not overlapped with the center of piston only by force direction the time; Push rod promotes piston only crush seal circle, and seal ring is by compression the time, and the outer wall of wear-resistant guiding ring contacts with the inwall of hydraulic cylinder; Avoided inboard wall of cylinder block or piston only generation scratch that the clutch booster occurs easily after long-term the use, caused fault such as seal failure, the working life of greatly having improved the clutch booster assembly.
When using the utility model, can dwindle the diameter of piston only, further avoided the inwall scraped finish of piston only and hydraulic cylinder.
In other embodiment, described seal ring can also be arranged on the inwall of hydraulic cylinder, and when piston moved, the outer circumferential face of seal ring and piston only was sealed and matched.
In other embodiment, described seal ring can also be common O-ring seal.
Claims (5)
1. an anti-scraped finish clutch booster comprises hydraulic cylinder, is provided with piston in the hydraulic cylinder; Piston comprises piston only; On the inwall of oil hydraulic cylinder or the outer circumferential face of piston only be provided with seal ring, it is characterized in that piston only both sides on the axis of seal ring are installed with piston only and move and hydraulic cylinder inwall guiding moves the wear-resistant guiding ring that cooperates; The external diameter of wear-resistant guiding ring is less than or equal to the diameter of hydraulic cylinder endoporus greater than the external diameter of piston only.
2. anti-scraped finish clutch booster according to claim 1 is characterized in that described seal ring is arranged on the intermediate portion of the outer circumferential face of piston only, and the wear-resistant guiding ring is arranged on the two ends of piston only outer circumferential face.
3. anti-scraped finish clutch booster according to claim 2 is characterized in that described seal ring is the y-type seal ring of a pair of opposing setting.
4. anti-scraped finish clutch booster according to claim 3 is characterized in that, described y-type seal ring is arranged on the piston only through being embedded in the corresponding seal ring annular groove that is provided with of intermediate portion of the outer circumferential face of piston only respectively.
5. according to the described anti-scraped finish clutch booster of any claim of claim 1-4, it is characterized in that the wear-resistant guiding ring is arranged on the piston only in the corresponding guide ring annular groove that is provided with through being embedded on the outer circumferential face of piston only respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220075881XU CN202545652U (en) | 2012-03-02 | 2012-03-02 | Anti-scratching clutch booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220075881XU CN202545652U (en) | 2012-03-02 | 2012-03-02 | Anti-scratching clutch booster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202545652U true CN202545652U (en) | 2012-11-21 |
Family
ID=47166291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220075881XU Expired - Fee Related CN202545652U (en) | 2012-03-02 | 2012-03-02 | Anti-scratching clutch booster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202545652U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074887A (en) * | 2014-07-08 | 2014-10-01 | 陈斌 | Clutch booster high in sealing performance |
-
2012
- 2012-03-02 CN CN201220075881XU patent/CN202545652U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074887A (en) * | 2014-07-08 | 2014-10-01 | 陈斌 | Clutch booster high in sealing performance |
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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: 20121121 Termination date: 20190302 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |