CN104930088A - Piston structure reducing starting pressure of brake - Google Patents
Piston structure reducing starting pressure of brake Download PDFInfo
- Publication number
- CN104930088A CN104930088A CN201510367214.7A CN201510367214A CN104930088A CN 104930088 A CN104930088 A CN 104930088A CN 201510367214 A CN201510367214 A CN 201510367214A CN 104930088 A CN104930088 A CN 104930088A
- Authority
- CN
- China
- Prior art keywords
- piston
- brake
- oil
- starting pressure
- break
- 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.)
- Pending
Links
Landscapes
- Actuator (AREA)
Abstract
The invention discloses a piston structure reducing the starting pressure of a brake. The piston structure comprises a piston body, the middle portion of the bottom end of the piston body is provided with a force bearing end, and the force bearing end is a boss or a groove. According to the invention, the bottom end of the piston body is provided with the boss-shaped or grove-shaped force bearing end, so that the contact area of pressure oil and the piston body can be increased before the piston acts, the starting pressure of the piston body can be reduced, and the reaction sensitivity can be improved.
Description
Technical field
The present invention relates to a kind of piston structure, particularly the piston of wind-driven generator device, specifically a kind of piston structure reducing break breakout pressure.
Background technique
Along with the development of science and technology, the social demand to the energy is in continuous increase, and mankind's environmental consciousness is in enhancing, more and more higher to the requirement of air quality, international, the domestic proportion of utilization to novel energies such as various pollution-free clean energy resource, renewable energy sourcess improves constantly.Wind energy is use more for convenience in all novel energies, and a kind of energy that user cost is lower can play considerable effect in international energy.
Need to use break in wind-driven generator, in break, piston is installed, but general break piston end surface is all plane structure, as shown in Figure 1-2, because processing exists certain difference, partial brake device piston end surface and oil hydraulic cylinder bottom surface are fitted closely, cause hydraulic oil can not enter the faying surface of piston end surface and oil hydraulic cylinder bottom surface, when making piston initialization, (piston not operating before) hydraulic oil active area to piston is too small, cause the too high and piston delay of response of piston breakout pressure, affect the performance of break.
Summary of the invention
The present invention aims to provide a kind of piston structure reducing break breakout pressure, to solve existing break due to filler opening place fluid and the too high and piston delay of response of little the caused piston breakout pressure of piston interface, affects the problem of brake performance.
The present invention is achieved by following technical solution:
Reduce a piston structure for break breakout pressure, comprise piston only, described piston only center bottom is provided with force side, and described force side is boss or groove.
The invention has the beneficial effects as follows:
Compared with prior art, the piston structure of reduction break breakout pressure provided by the invention, the boss shape arranged by piston only bottom or the force side of groove type can increase the area of contact of pressure oil and piston only before piston action, to reduce the breakout pressure of piston only and to improve being quick on the draw property.And according to different brake structurals, for the break of oil-feed bottom piston cavity, force side is groove structure: for the break of oil-feed bottom piston cavity, and force side is boss structure.
Accompanying drawing explanation
Fig. 1 is existing bottom oil-feed brake plunger structural drawing;
Fig. 2 is existing side oil-feed brake plunger structural drawing;
Fig. 3-Fig. 4 is structural drawing of the present invention;
Fig. 5 is the structural drawing of the embodiment of the present invention 1;
Fig. 6 is the structural drawing of the embodiment of the present invention 2;
In figure: 1-piston only, 2-force side, 3-oil hydraulic cylinder, 4-filler opening.
Embodiment
Below in conjunction with accompanying drawing, technological scheme of the present invention is described further, but described in required protection domain is not limited to;
As shown in Figure 3-4, the piston structure of reduction break breakout pressure provided by the invention, comprises piston only 1, and described piston only 1 center bottom or surrounding are provided with force side 2, centered by described force side 2 or surrounding groove.The force side 2 of groove type arranged by piston only 1 bottom can increase the area of contact of pressure oil and piston only 1 before piston action, to reduce the breakout pressure of piston only 1 and being quick on the draw property of raising.
Embodiment 1: when the oil hydraulic cylinder 3 adopted is rising pouring hydraulic oil as shown in Figure 5, circular groove is offered in piston only 1 center bottom, when needs start piston, hydraulic oil passes through the filler opening 4 of oil hydraulic cylinder 3 center bottom to oiling in cylinder, first hydraulic oil be injected in groove, namely the area of contact between hydraulic oil and piston only 1 is made to be increased to groove area from original filler opening 4 area adding of groove, namely increase effectively the area of contact of piston only 1 relative to hydraulic oil, effectively can reduce the breakout pressure of piston only 1 and improve being quick on the draw property.
Embodiment 2: when the oil hydraulic cylinder 3 adopted is side feeding type as shown in Figure 6, in piston only 1 center bottom, circular boss is set, when starting piston, hydraulic oil passes through the filler opening 4 of oil hydraulic cylinder 3 sidewall to oiling in cylinder, first hydraulic oil be injected in the cavity outside boss, namely the area of contact between hydraulic oil and piston only 1 is made to be increased to cavity area from original filler opening 4 area adding of boss, namely increase effectively the area of contact of piston only 1 relative to hydraulic oil, effectively can reduce the breakout pressure of piston only 1 and improve being quick on the draw property.
Claims (1)
1. one kind is reduced the piston structure of break breakout pressure, comprise piston only (1), it is characterized in that: described piston only (1) center bottom is provided with force side (2), described force side (2) are boss or groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510367214.7A CN104930088A (en) | 2015-06-26 | 2015-06-26 | Piston structure reducing starting pressure of brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510367214.7A CN104930088A (en) | 2015-06-26 | 2015-06-26 | Piston structure reducing starting pressure of brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104930088A true CN104930088A (en) | 2015-09-23 |
Family
ID=54117414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510367214.7A Pending CN104930088A (en) | 2015-06-26 | 2015-06-26 | Piston structure reducing starting pressure of brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104930088A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4887449A (en) * | 1987-09-04 | 1989-12-19 | Akebono Brake Industry Co., Ltd. | Method for forming a piston having a peg |
| US5105917A (en) * | 1990-12-31 | 1992-04-21 | Kelsey-Hayes Company | Disc brake piston |
| US5231916A (en) * | 1990-02-08 | 1993-08-03 | Alfred Teves Gmbh | Cold-worked piston for hydraulically operating brake |
| DE4418701A1 (en) * | 1994-05-28 | 1995-11-30 | Bayerische Motoren Werke Ag | Vehicle disc brake piston |
| CN202065388U (en) * | 2011-05-20 | 2011-12-07 | 台州万洲机械有限公司 | Hydraulic brake calipers |
| CN202402526U (en) * | 2012-01-10 | 2012-08-29 | 瑞安市博欧汽配有限公司 | Braking calipers |
| CN202914603U (en) * | 2012-11-27 | 2013-05-01 | 温州市佳本机车零部件有限公司 | Disc brake |
| CN203098693U (en) * | 2012-12-18 | 2013-07-31 | 芜湖恒坤汽车部件有限公司 | Hydraulic brake wheel cylinder |
| CN204828400U (en) * | 2015-06-26 | 2015-12-02 | 贵州新安航空机械有限责任公司 | Low start -up pressure piston structure |
-
2015
- 2015-06-26 CN CN201510367214.7A patent/CN104930088A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4887449A (en) * | 1987-09-04 | 1989-12-19 | Akebono Brake Industry Co., Ltd. | Method for forming a piston having a peg |
| US5231916A (en) * | 1990-02-08 | 1993-08-03 | Alfred Teves Gmbh | Cold-worked piston for hydraulically operating brake |
| US5105917A (en) * | 1990-12-31 | 1992-04-21 | Kelsey-Hayes Company | Disc brake piston |
| DE4418701A1 (en) * | 1994-05-28 | 1995-11-30 | Bayerische Motoren Werke Ag | Vehicle disc brake piston |
| CN202065388U (en) * | 2011-05-20 | 2011-12-07 | 台州万洲机械有限公司 | Hydraulic brake calipers |
| CN202402526U (en) * | 2012-01-10 | 2012-08-29 | 瑞安市博欧汽配有限公司 | Braking calipers |
| CN202914603U (en) * | 2012-11-27 | 2013-05-01 | 温州市佳本机车零部件有限公司 | Disc brake |
| CN203098693U (en) * | 2012-12-18 | 2013-07-31 | 芜湖恒坤汽车部件有限公司 | Hydraulic brake wheel cylinder |
| CN204828400U (en) * | 2015-06-26 | 2015-12-02 | 贵州新安航空机械有限责任公司 | Low start -up pressure piston structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204828400U (en) | Low start -up pressure piston structure | |
| CN104930088A (en) | Piston structure reducing starting pressure of brake | |
| CN204961435U (en) | Quick pressurized cylinder is kept apart to oil gas | |
| CN203030758U (en) | Self-lubricating progressive die | |
| CN204828404U (en) | Novel stopper structure | |
| CN204942640U (en) | The inserted horizontal check valve of flap | |
| CN204267418U (en) | Large diameter, short stroke hydraulic cylinder | |
| CN203868178U (en) | Clutch main cylinder | |
| CN203474854U (en) | Inner tooth ring pressure quenching device | |
| CN203272692U (en) | Damping type gear | |
| CN202867564U (en) | Novel tilting tile | |
| CN202674296U (en) | Novel piston for engine | |
| CN202608094U (en) | Sliding block for high-speed punching machine | |
| CN105041922A (en) | Brake structure for reducing starting pressure | |
| CN202203319U (en) | Shock absorber | |
| CN204458626U (en) | A kind of oil-leakage-prevention oil cylinder with Sealing | |
| CN204658330U (en) | A kind of pad axle frock | |
| CN203189650U (en) | Self-lubricating duplicate gear | |
| CN203625600U (en) | Pressing triangle in flat knitting machine | |
| CN202576932U (en) | One-way bearing assembling structure of clutch | |
| CN203374685U (en) | Guide pin for guide positioning plate of clutch | |
| CN202048200U (en) | Precise slip-ring oil-leak-prevention sealing structure | |
| CN204327355U (en) | A kind of novel fuel pump | |
| CN202301914U (en) | Piston structure of brake main cylinder | |
| CN203082162U (en) | Plane spacer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150923 |
|
| RJ01 | Rejection of invention patent application after publication |