CN102338177A - Piston lubrication mechanism in braking wheel cylinder - Google Patents
Piston lubrication mechanism in braking wheel cylinder Download PDFInfo
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- CN102338177A CN102338177A CN201110284410XA CN201110284410A CN102338177A CN 102338177 A CN102338177 A CN 102338177A CN 201110284410X A CN201110284410X A CN 201110284410XA CN 201110284410 A CN201110284410 A CN 201110284410A CN 102338177 A CN102338177 A CN 102338177A
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- hole
- piston
- wheel cylinder
- cylinder body
- right piston
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Abstract
The invention discloses a piston lubrication mechanism in a braking wheel cylinder. The piston lubrication mechanism comprises a cylinder body, wherein an oil nozzle is formed on the cylinder body; a radial through hole is formed in the cylinder body; a left piston and a right piston are arranged in the radial through hole and are in sliding fit with the hole wall of the radial through hole; annular grooves are formed on the outer walls of the left piston and the right piston; leather collars are arranged in the annular grooves; and small holes which are communicated with the annular grooves are formed at the upper ends of the inner lateral surfaces of the left piston and the right piston. The piston lubrication mechanism has a simple structure and high practical value and is made of local materials, and a seal ring is lubricated by oil serving as a braking source in an inner cavity of the braking wheel cylinder, so the cost is saved, and influence on work efficiency of the braking wheel cylinder due to frequent replacement of the seal ring can be eliminated.
Description
Technical field
The present invention relates to the automotive brake field, be specifically related to a kind of wheel cylinder inner carrier lubricating structure.
Background technique
Wheel cylinder generally relies on pressurized air or oil to get into master cylinder, and promotion piston etc. overlap base apparatus and play braking action, are parts of automotive brake, are used to produce the power that hinders vehicle movement or movement tendency, i.e. braking force.
The inner piston of wheel cylinder adopts the seal ring sealing mostly, but in the long-term work process, seal ring has wearing and tearing in various degree, if frequent change will inevitably have influence on the working efficiency of wheel cylinder, has also increased cost simultaneously.
Summary of the invention
The purpose of this invention is to provide a kind of wheel cylinder inner carrier lubricating structure, utilize braking source---the oil of wheel cylinder inner chamber, come the lubrication and seal circle, not only practice thrift cost, and can avoid the frequent change seal ring and have influence on the working efficiency of wheel cylinder.
Technological scheme of the present invention is following:
A kind of wheel cylinder inner carrier lubricating structure includes cylinder body, and described cylinder body is provided with oil nozzle; It is characterized in that: be provided with radial direction through hole in the said cylinder body; Be provided with left and right piston in the described radial direction through hole, the hole wall of described left and right piston and radial direction through hole is slidingly matched, difference annular groove on the outer wall of said left and right piston; Be provided with apron in the described annular groove, the upper end of said left and right piston inner side surface is respectively equipped with the aperture that leads to annular groove.
Described wheel cylinder inner carrier lubricating structure is characterized in that: be positioned on the cylinder body of said radial direction through hole both sides and be separately installed with dust-proof cover, the middle part of said dust-proof cover is provided with through hole.
Beneficial effect of the present invention:
The present invention is simple in structure, gathers materials on the spot, and utilizes braking source---the oil of wheel cylinder inner chamber, comes the lubrication and seal circle, has not only practiced thrift cost, and can avoid the frequent change seal ring and have influence on the working efficiency of wheel cylinder, has good use value.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Referring to Fig. 1, a kind of wheel cylinder inner carrier lubricating structure includes cylinder body 1; Cylinder body 1 is provided with oil nozzle, is provided with radial direction through hole 6 in the cylinder body 1, is provided with left and right piston 7,4 in the radial direction through hole 6; The hole wall of left and right piston 7,4 and radial direction through hole 6 is slidingly matched, and difference annular groove 8 is provided with apron 3 on the outer wall of left and right piston 7,4 in the annular groove 8; The upper end of left and right piston 7,4 inner side surfaces is respectively equipped with the aperture 9 that leads to annular groove 8, when filling with oil in the radial direction through hole 6, has certain oil in aperture 9 flows to annular groove 8; Thereby apron 3 is played lubrication; When the oil in the radial direction through hole 6 refluxed, the oil in the annular groove 8 also can reflux, thereby can not have influence on the proper functioning of left and right piston 7,4 and apron 3.
Be positioned on the cylinder body 1 of radial direction through hole 6 both sides and be separately installed with dust-proof cover 5, the middle part of dust-proof cover 5 is provided with through hole.
Claims (2)
1. a wheel cylinder inner carrier lubricating structure includes cylinder body, and described cylinder body is provided with oil nozzle; It is characterized in that: be provided with radial direction through hole in the said cylinder body; Be provided with left and right piston in the described radial direction through hole, the hole wall of described left and right piston and radial direction through hole is slidingly matched, difference annular groove on the outer wall of said left and right piston; Be provided with apron in the described annular groove, the upper end of said left and right piston inner side surface is respectively equipped with the aperture that leads to annular groove.
2. wheel cylinder inner carrier lubricating structure according to claim 1 is characterized in that: be positioned on the cylinder body of said radial direction through hole both sides and be separately installed with dust-proof cover, the middle part of said dust-proof cover is provided with through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110284410XA CN102338177A (en) | 2011-09-22 | 2011-09-22 | Piston lubrication mechanism in braking wheel cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110284410XA CN102338177A (en) | 2011-09-22 | 2011-09-22 | Piston lubrication mechanism in braking wheel cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102338177A true CN102338177A (en) | 2012-02-01 |
Family
ID=45514070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110284410XA Pending CN102338177A (en) | 2011-09-22 | 2011-09-22 | Piston lubrication mechanism in braking wheel cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102338177A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020017438A1 (en) * | 2000-08-01 | 2002-02-14 | Masaaki Furukawa | Brake cylinder |
| KR20070045019A (en) * | 2005-10-26 | 2007-05-02 | 주식회사 만도 | Wheel cylinder for vehicle |
| CN101069007A (en) * | 2004-11-22 | 2007-11-07 | 丰田自动车株式会社 | Piston for internal-combustion engine and combination of piston and piston ring for internal-combustion engine |
| CN201487188U (en) * | 2009-06-09 | 2010-05-26 | 内蒙古北方重型汽车股份有限公司 | Piston for hydraulic cylinder |
| CN201568497U (en) * | 2009-11-13 | 2010-09-01 | 芜湖恒坤汽车部件有限公司 | Double-acting brake wheel cylinder assembly |
| CN201566605U (en) * | 2009-11-13 | 2010-09-01 | 芜湖恒坤汽车部件有限公司 | Brake wheel cylinder assembly |
| CN201651281U (en) * | 2010-01-08 | 2010-11-24 | 泉州特库克汽车零部件有限公司 | Piston head with oil storage function |
-
2011
- 2011-09-22 CN CN201110284410XA patent/CN102338177A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020017438A1 (en) * | 2000-08-01 | 2002-02-14 | Masaaki Furukawa | Brake cylinder |
| CN101069007A (en) * | 2004-11-22 | 2007-11-07 | 丰田自动车株式会社 | Piston for internal-combustion engine and combination of piston and piston ring for internal-combustion engine |
| KR20070045019A (en) * | 2005-10-26 | 2007-05-02 | 주식회사 만도 | Wheel cylinder for vehicle |
| CN201487188U (en) * | 2009-06-09 | 2010-05-26 | 内蒙古北方重型汽车股份有限公司 | Piston for hydraulic cylinder |
| CN201568497U (en) * | 2009-11-13 | 2010-09-01 | 芜湖恒坤汽车部件有限公司 | Double-acting brake wheel cylinder assembly |
| CN201566605U (en) * | 2009-11-13 | 2010-09-01 | 芜湖恒坤汽车部件有限公司 | Brake wheel cylinder assembly |
| CN201651281U (en) * | 2010-01-08 | 2010-11-24 | 泉州特库克汽车零部件有限公司 | Piston head with oil storage function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120201 |