CN102022460A - Bidirectional self-energizing brake - Google Patents
Bidirectional self-energizing brake Download PDFInfo
- Publication number
- CN102022460A CN102022460A CN2010105280829A CN201010528082A CN102022460A CN 102022460 A CN102022460 A CN 102022460A CN 2010105280829 A CN2010105280829 A CN 2010105280829A CN 201010528082 A CN201010528082 A CN 201010528082A CN 102022460 A CN102022460 A CN 102022460A
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- China
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- brake
- wheel cylinder
- shoes
- brake shoe
- supporting pin
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Abstract
The invention relates to a bidirectional self-energizing brake, belonging to the field of automobile. The bidirectional self-energizing brake is provided with brake shoes, a brake bottom plate, a supporting pin, a return spring and a brake wheel cylinder; the brake is characterized in that the brake wheel cylinder and the supporting pin are installed forwards, the brake shoes are installed up and down, the supporting pin is riveted on the brake bottom plate, two supporting planes of the supporting pin are perpendicular to the brake bottom plate and symmetrical to the front and the back axes of the brake bottom plate, the front ends of two brake shoes are external cambered surfaces respectively supported and leaned against the planes of the supporting pin and can float back and forth, the rear ends of the brake shoes are equipped with a tension spring and an adjustable bolt, the middle parts of the brake shoes are tightly compressed by a pressure spring, and the return spring is installed at the back of the brake wheel cylinder and directly hung in a small hole of the brake shoe from the middle part thereof. The bidirectional self-energizing brake is high in bearing strength, good in automatic centering and brake stability, uniform in wearing of the shoes and long in service life, and simultaneously can solve the problems of deflected brake and brake heating caused by poor manufacture precision.
Description
Technical field
The present invention relates to the auto-parts field, specifically a kind of double direction automotive strengthening brake.
Background technique
As everyone knows, at present, little, jubilee wagen is for satisfying the requirement of braking force, the two-way self-boosting type structure of the many employings of its break.The working principle of this break is: when brake drum was rotated in the forward, fore brake was first hoof, and back brake shoe is second hoof.Automobile advances when braking, and the two-piston of wheel cylinder ejects to two ends, and brake shoe leaves rest pin and is pressed on the brake drum before and after making, so produce rubbing action between brake drum that is rotating and two brake shoes.Because push rod floats, front and back brake shoe and push rod turn over an angle along the sense of rotation of brake drum, are pressed onto once more on the rest pin up to the upper end of back brake shoe, and this moment, the wheel cylinder motivator further increased, braking effectiveness factor is very high, can produce very big braking force with little pedaling force.But because of the problem of accuracy of manufacturing, the riveted joint position degree deviation as rest pin causes the coaxality of brake shoe overproof.The one, can cause left and right sides brake braking force widely different, the inclined to one side situation of stopping appears; The 2nd, because of reasons in structure, can make brake shoe and brake drum self-locking, cause the braking abnormal heating.Have a strong impact on the stationarity and the stability of braking, become the hard nut to crack of double direction automotive strengthening brake.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of double direction automotive strengthening brake, the mounting type and the structure of break to be done to adjust, the wheel cylinder and the rest pin of break are installed forward, and brake shoe is installed up and down; Rest pin is riveted on the braking bottom board, the both sides plane symmetry and be parallel to before and after axis; Braking shoes front end adopts outer arced surface to prop up and bears against on the rest pin plane, but can float front and back, solved the problem of the position degree skew that causes because of accuracy of manufacturing, the centering of realization automatic capturing, the rear end is equipped with extension spring and is adjusted bolt, and the middle part compresses with stage clip, and return spring is contained in the wheel cylinder back, directly hang over from the centre in the aperture of brake shoe, the return spring design helps the free floating of shoe plate.
The technical solution adopted for the present invention to solve the technical problems is: a kind of double direction automotive strengthening brake, be provided with brake shoe, brake backing plate, rest pin, the wheel cylinder of return spring and break, the wheel cylinder and the rest pin that it is characterized in that break are installed forward, brake shoe is installed up and down, rest pin is riveted on the brake backing plate, rest pin two supporting planes vertical with brake backing plate and with brake backing plate before and after the axis symmetry, two brake shoe front ends adopt outer arced surface to prop up breasting respectively on the plane of rest pin, can float front and back, the brake shoe rear end is equipped with extension spring and is adjusted bolt, the middle part compresses with stage clip, return spring is contained in the wheel cylinder back of break, directly hangs over from the centre in the aperture of brake shoe.
The invention has the beneficial effects as follows, novel structure, bearing strength height, self-alignment is good, insensitivity is good, the wearing and tearing of shoe plate evenly, long service life, the effect of relying on oneself that not only possesses double direction automotive strengthening brake fully, can solve simultaneously the problem that the braking that causes because of the accuracy of manufacturing problem is stopped partially and braking is generated heat, can replace original double direction automotive strengthening brake fully, be widely used in existing little, compact car.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1, structural representation of the present invention.
1. brake backing plates among the figure, 2. rest pin, 3. brake shoe, 4. return spring.
Embodiment
As shown in Figure 1, the wheel cylinder of break of the present invention and rest pin 2 are installed forward, brake shoe 3 is installed up and down, rest pin 2 is riveted on the brake backing plate 1,2 liang of supporting planes of rest pin and brake backing plate 1 vertical and with the front and back axis symmetry of brake backing plate 1, two brake shoe 3 front ends adopt outer arced surface to prop up breasting respectively on the plane of rest pin 2, can float front and back, brake shoe 3 rear ends are equipped with extension spring and are adjusted bolt, the middle part compresses with stage clip, return spring 4 is contained in the wheel cylinder back of break, directly hangs over from the centre in the aperture of brake shoe 3.
The present invention supports with the outer arced surface brake shoe mutually with the plane bearing pin, in braking process, the front and back position of brake shoe is to float, solved the problem of the location eccentricity that causes because of the accuracy of manufacturing problem, brake shoe floats before and after the brake shoe sector-meeting after being subjected to rotatory force that brake drum applies, guarantees that brake shoe is in the optimum position, thereby maximum braking moment is provided, makes the self energizing effort effect of break reach best.Simultaneously, the braking moment kept in balance of both sides has solved the inclined to one side problem of stopping of braking.Adopt the design of novel return spring, the big increase of degrees of freedom that brake shoe is floated, thereby from solved the problem of braking heating at all.
Claims (1)
1. double direction automotive strengthening brake, be provided with brake shoe, brake backing plate, rest pin, the wheel cylinder of return spring and break, the wheel cylinder and the rest pin that it is characterized in that break are installed forward, brake shoe is installed up and down, rest pin is riveted on the brake backing plate, rest pin two supporting planes vertical with brake backing plate and with brake backing plate before and after the axis symmetry, two brake shoe front ends adopt outer arced surface to prop up breasting respectively on the plane of rest pin, can float front and back, the brake shoe rear end is equipped with extension spring and is adjusted bolt, the middle part compresses with stage clip, and return spring is contained in the wheel cylinder back of break, directly hangs over from the centre in the aperture of brake shoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105280829A CN102022460A (en) | 2010-11-02 | 2010-11-02 | Bidirectional self-energizing brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105280829A CN102022460A (en) | 2010-11-02 | 2010-11-02 | Bidirectional self-energizing brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102022460A true CN102022460A (en) | 2011-04-20 |
Family
ID=43864105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105280829A Pending CN102022460A (en) | 2010-11-02 | 2010-11-02 | Bidirectional self-energizing brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102022460A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163033A (en) * | 2018-08-10 | 2019-01-08 | 南京布雷尔汽车配件有限公司 | A kind of automobile brake drum device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2140326Y (en) * | 1992-06-03 | 1993-08-18 | 重庆市朝阳汽车配件厂 | Drum-like hand brake |
| CN2142795Y (en) * | 1992-02-25 | 1993-09-29 | 四川都江机械厂 | Rear axle of light bus with high performance |
| CN201875025U (en) * | 2010-11-02 | 2011-06-22 | 威海市九跃车桥有限公司 | Bidirectional self-energizing brake |
-
2010
- 2010-11-02 CN CN2010105280829A patent/CN102022460A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2142795Y (en) * | 1992-02-25 | 1993-09-29 | 四川都江机械厂 | Rear axle of light bus with high performance |
| CN2140326Y (en) * | 1992-06-03 | 1993-08-18 | 重庆市朝阳汽车配件厂 | Drum-like hand brake |
| CN201875025U (en) * | 2010-11-02 | 2011-06-22 | 威海市九跃车桥有限公司 | Bidirectional self-energizing brake |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163033A (en) * | 2018-08-10 | 2019-01-08 | 南京布雷尔汽车配件有限公司 | A kind of automobile brake drum device |
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|---|---|---|---|
| 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: 20110420 |