CN203248704U - Front brake caliper piston - Google Patents
Front brake caliper piston Download PDFInfo
- Publication number
- CN203248704U CN203248704U CN 201320272112 CN201320272112U CN203248704U CN 203248704 U CN203248704 U CN 203248704U CN 201320272112 CN201320272112 CN 201320272112 CN 201320272112 U CN201320272112 U CN 201320272112U CN 203248704 U CN203248704 U CN 203248704U
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- CN
- China
- Prior art keywords
- piston
- piston cavity
- brake caliper
- cavity
- front brake
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- 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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Abstract
The utility model relates to a front brake caliper piston. The front brake caliper piston comprises a piston body and a piston cavity, wherein the piston cavity is formed in the front end of the piston body, the piston cavity is cylindrical and comprises three parts from outside to inside, inner diameters of the three parts which are arranged from outside to inside become larger gradually in sequence, an arc-shaped groove is formed in the bottom of the piston cavity, an annular groove with a U-shaped cross section is formed in the lateral wall, close to a front port, of the piston body, a plurality of strip-shaped grooves which are formed in the axial direction of the piston cavity are evenly distributed in the inner lateral wall of the piston cavity, the strip-shaped grooves stretch from the top portion of the piston cavity to the bottom portion of the piston cavity, and the surface of the piston body is plated with a chromium coating. The front brake caliper piston has the advantages that the structure is simple; due to the fact that the annular groove is formed in the piston body, the piston body and a transmission assembly can be firmly connected and disengaging between the piston body and the transmission assembly can not occur easily; due to the design of the strip-shaped grooves, air in the piston cavity can be discharged, and the braking effect of the front brake caliper piston is improved.
Description
Technical field
The utility model relates to a kind of front brake caliper piston.
Background technique
Brake piston is the heart of automobile brake, bears mechanical load and the heat load of alternation, is one of worst key components and parts of operating conditions in the brake caliper.The function of piston is to bear fluid pressure, the pressure that brake-fluid provides by brake pump promotes the piston of clamp, piston (internal spiral, can play the effect of limiting displacement) the promotion push rod, push rod pushes friction plate again, friction plate contacts the generation friction and brakes with friction disk, friction disk and integral body generally are positioned front-rear axle.The forward and backward brake caliper piston that the brake system of automobile comprises clamp, cooperates with clamp; Air inconvenience in the existing front brake caliper piston, piston cavity is got rid of, and when braking, the air in the oil hydraulic cylinder is squeezed, and braking effect is relatively poor; Easy and the driving component disengaging of brake caliper piston causes brake failure; And existing brake caliper piston is low working life.
The model utility content
Technical problem to be solved in the utility model provides a kind of simple in structure, long service life, can effectively get rid of the air in the piston cavity of front brake caliper piston, and brake caliper piston before connecting closely.
In order to address the above problem, the utility model provides a kind of front brake caliper piston, comprise: piston only, be located at the piston cavity of piston only front end, described piston cavity is cylindrical, described piston cavity comprises three parts that internal diameter from outside to inside increases progressively successively, the bottom of described piston cavity is provided with one for the arc groove of depositing hydraulic oil, the sidewall of the adjacent front end mouth of described piston only is provided with the circular groove that a cross section takes the shape of the letter U, this circular groove is used for guaranteeing stable connection between piston only and transmitting assemblies, is evenly distributed with a plurality of bar-shaped troughs that axially arrange along piston cavity on the madial wall of described piston cavity.Described bar-shaped trough extends to the bottom by the top of piston cavity.
The plated surface of described piston only is useful on antirust, wear-resisting chromium coating, and the thickness of chromium coating is 0.1-0.2mm.
Described bar-shaped trough is used for discharging the air in the arc groove after the injection liquid force feed, the braking effect of brake caliper piston before increasing.
The utility model has positive effect with respect to prior art: front brake caliper piston of the present utility model is simple in structure, by at piston only circular groove being set, makes being connected between piston only and transmitting assemblies be difficult for breaking away from; Adopt the discharge air in the piston cavity that is designed to of bar-shaped trough, increased the braking effect of front brake caliper piston; Simultaneously, be coated with chromium coating on the piston only surface, make piston only surface hardness height, be difficult for getting rusty, strengthened the working life of front brake caliper piston.
Description of drawings
For content of the present utility model is more likely to be clearly understood, below the specific embodiment and by reference to the accompanying drawings of basis, the utility model is described in further detail, wherein
Fig. 1 is the structural drawing of front brake caliper piston of the present utility model;
Fig. 2 is the left view of Fig. 1.
Embodiment
See Fig. 1, the front brake caliper piston of present embodiment, comprise: piston only 1, be located at the piston cavity 2 of piston only 1 front end, described piston cavity 2 is cylindrical, described piston cavity 2 comprises three parts that internal diameter from outside to inside increases progressively successively, the bottom of described piston cavity 2 is provided with one for the arc groove 3 of depositing hydraulic oil, the sidewall of the adjacent front end mouth of described piston only 1 is provided with the circular groove 4 that a cross section takes the shape of the letter U, this circular groove 4 is used for guaranteeing stable connection between piston only 1 and transmitting assemblies, is evenly distributed with a plurality of bar-shaped troughs 5 that axially arrange along piston cavity on the madial wall of described piston cavity 2.Described bar-shaped trough 5 extends to the bottom by the top of piston cavity.
The plated surface of described piston only 1 is useful on antirust, wear-resisting chromium coating, and the thickness of chromium coating is 0.1-0.2mm.Described bar-shaped trough 5 is used for discharging the air in the arc groove 3 after the injection liquid force feed, the braking effect of brake caliper piston before increasing.
Toward piston cavity 2 interior injection liquid force feed the time, hydraulic oil enters in the arc groove 3, and when arc groove 3 interior hydraulic oil were filled with, air was discharged through bar-shaped trough 5, has avoided brake latency.
Obviously, above-described embodiment only is for the utility model example clearly is described, and is not to be restriction to mode of execution of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all mode of executions exhaustive.And these belong to apparent variation or the change that spirit of the present utility model extended out and still are among the protection domain of the present utility model.
Claims (1)
1. brake caliper piston before a kind, it is characterized in that comprising: piston only, be located at the piston cavity of piston only front end, described piston cavity is cylindrical, described piston cavity comprises three parts that internal diameter from outside to inside increases progressively successively, the bottom of described piston cavity is provided with an arc groove, and the sidewall of the adjacent front end mouth of described piston only is provided with the circular groove that a cross section takes the shape of the letter U, and is evenly distributed with a plurality of bar-shaped troughs that axially arrange along piston cavity on the madial wall of described piston cavity;
Described bar-shaped trough extends to the bottom by the top of piston cavity;
The surface of described piston only is coated with chromium coating, and the thickness of chromium coating is 0.1-0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320272112 CN203248704U (en) | 2013-05-20 | 2013-05-20 | Front brake caliper piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320272112 CN203248704U (en) | 2013-05-20 | 2013-05-20 | Front brake caliper piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203248704U true CN203248704U (en) | 2013-10-23 |
Family
ID=49375143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320272112 Expired - Fee Related CN203248704U (en) | 2013-05-20 | 2013-05-20 | Front brake caliper piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203248704U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570453A (en) * | 2016-02-26 | 2016-05-11 | 龙工（上海）精工液压有限公司 | Piston base for effectively preventing blockage of piston |
| CN106895095A (en) * | 2017-03-02 | 2017-06-27 | 杭州云乐车辆技术有限公司 | Clamped without dynamic braking is dragged |
-
2013
- 2013-05-20 CN CN 201320272112 patent/CN203248704U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570453A (en) * | 2016-02-26 | 2016-05-11 | 龙工（上海）精工液压有限公司 | Piston base for effectively preventing blockage of piston |
| CN106895095A (en) * | 2017-03-02 | 2017-06-27 | 杭州云乐车辆技术有限公司 | Clamped without dynamic braking is dragged |
| CN106895095B (en) * | 2017-03-02 | 2019-01-18 | 杭州云乐车辆技术有限公司 | It is clamped without dynamic braking is dragged |
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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: 20131023 Termination date: 20140520 |