CN87202666U - Wheel brake with brake shoe and brake drum being able to press wholly against each other - Google Patents
Wheel brake with brake shoe and brake drum being able to press wholly against each other Download PDFInfo
- Publication number
- CN87202666U CN87202666U CN 87202666 CN87202666U CN87202666U CN 87202666 U CN87202666 U CN 87202666U CN 87202666 CN87202666 CN 87202666 CN 87202666 U CN87202666 U CN 87202666U CN 87202666 U CN87202666 U CN 87202666U
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- CN
- China
- Prior art keywords
- brake
- brake shoe
- wheel
- cheek
- shoe
- 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.)
- Withdrawn
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- Braking Arrangements (AREA)
Abstract
The utility model relates to a wheel brake whose brake shoe and brake drum can be wholly abutted, belonging to the technical field of the design and the manufacture for the wheel brake of the automobile. That each brake shoe and each brake drum of existing various wheel brakes are wholly abutted is difficult to be achieved, and accordingly, the brake property is reduced. As the brake shoe is floated on the sliding sleeve of a supporting axle fixed on a bottom board through the utility model, the brake shoe can only conduct the parallel reciprocating movement which is limited and in radial direction; all frictional force moment in brake is borne by the supporting axle, and accordingly, that the brake shoe and the brake drum are wholly abutted is ensured. The utility model has the advantages of high efficiency and long service life.
Description
The utility model belongs to the design and manufacturing technology field of automotive wheel drg.
Analyze from the structure angle, can be fitted on the brake wheel after brake shoe brake cheek opens is one of necessary condition that improves brake efficiency comprehensively, but existing simple cut of balance type brake, bogie type drg and Bendix type servo brake all are difficult to reach fully this requirement.For example bidirectional balanced formula drg glancing impact, under the friction moment effect of brake wheel, two hoof all rotate towards the wheel revolutions direction, till the bearing of the piston outer end that makes two wheel cylinders back into the end face of wheel cylinder.Two minutes this moments, pump holder became the fulcrum of brake shoe brake cheek.For each brake shoe brake cheek, its that a part of shoe plate and brake wheel near fulcrum just can not be fitted fully.Near more from fulcrum, it is just big more then to depart from fit-state.
The purpose of this utility model is to manufacture and design a kind of drg, and its brake shoe brake cheek and brake wheel can be fitted comprehensively, to improve brake efficiency and to make the wearing and tearing of friction lining more even.
The utility model is achieved like this: each drg is established two brake shoe brake cheek, two wheel cylinders, two retracing springs, and symmetric arrangement.Each brake shoe brake cheek is provided with the microscler support holes more than two, brake shoe brake cheek is floated be fixed on the bolster sliding sleeve of base plate.Two brake shoe brake cheek are respectively perpendicular to the both ends of the surface of wheel cylinder.Wheelcylinder piston outwards opens, and brake shoe brake cheek is pressed against on the brake wheel, realizes braking.Because brake shoe brake cheek is made limited radial parallel crank motion only, the friction moment of glancing impact brake wheel is all born by bolster, therefore can guarantee the comprehensive applying between brake shoe brake cheek and the brake wheel.
The utility model is compared with existing various car side brakes, and its advantage is that glancing impact brake shoe brake cheek and brake wheel can be fitted comprehensively, thereby has improved deceleration and stopping performance, and because frictional area is big, and wearing and tearing evenly can prolong friction lining service life.
Drawing explanation: 1, brake wheel.2, friction lining.3, brake shoe brake cheek.4, push rod.5, spring.6, location gear ring.7, tip-lever support.8, wheelcylinder piston.9, seal ring.10, recoil spring.11, divide the pump housing.12, flat gasket.13, spring cotter.14, dust boot.15, flat gasket.16, spring cotter.17, extension spring.18, bolster.19, bolster sliding sleeve.20, rivet.21, bolster sliding sleeve.22, bolster.23, back-plate.
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.
See accompanying drawing, two wheel cylinders (11), two brake shoe brake cheek (3) are installed on back-plate (23) plane, formation side's shape of rectifying.One of wheel cylinder is respectively installed in the top of back-plate (23), bottom.Be provided with two wheelcylinder pistons (8) and two cover push rod systems in each wheel cylinder.Two brake shoe brake cheek are respectively perpendicular to the both ends of the surface of wheel cylinder.Brake shoe brake cheek presses against on the brake wheel (1) under the thrust of wheel cylinder push rod (4), thereby reaches the braking purpose.Each brake shoe brake cheek (3) is provided with three microscler support holes, brake shoe brake cheek is floated respectively go up (axle without acceptance of persons) at three fixing bolsters ((18) and (22)) sliding sleeves ((19) and (21)).Brake shoe brake cheek is made limited radial parallel crank motion only.The effect of extension spring (17) is that brake shoe brake cheek is resetted.The usefulness of reversing glancing impact is the same with the glancing impact that advances.
Push rod (4) is a screw thread fit with tip-lever support (7), and the transverse plane gear of (7) is meshed with location gear ring (6).The inner ring of location gear ring (6) is provided with key, embeds the groove interior orientation of push rod (4).(6) compress by spring (5), tip-lever support (7) can not rotated freely.During the adjusting play, pull the tip-lever support rotation in the aperture with spillikin insertion tip-lever support (7), can make push rod (4) reciprocating, adjust the clearance takes out spillikin and gets final product auto lock after needed size.The excircle of all wheelcylinder pistons (8) is equipped with twice oil proof rubber seal ring (9), prevents that liquid (or gas) from leaking outside, and is safe and reliable.
Glancing impact, by the master cylinder of prior art (when using gas, be the gas of sending here by gas distributing valve) pressure oil supplied with, connect by the road, enter in the folded cavity of (11) middle two-piston top end face by a minute pump housing (11) bottom aperture, all wheelcylinder pistons (8) are all outwards passed simultaneously, promote recoil spring (10), drive tip-lever support (7) by (10), drive push rod (4) by (7), promote brake shoe brake cheek by (4) and open outward, behind the elimination gap, promptly enter buffer-braking, wheel begins reduction of speed.When (8) continuing outwards to pass, (10) are compressed, and when fit with the inner end surface of wheelcylinder piston (8) in the lower surface of tip-lever support (7), promptly enter with all strength and brake.Recoil spring this moment (10) is subjected to the application force of wheelcylinder piston and compacted all the time, thereby obtains resilient.After stopping braking, brake shoe brake cheek (3) retracts original position by extension spring (17), and the end face of (8) is located on the inner chamber platform of (11), waits braking next time.
Claims (4)
1, a kind of automotive wheel drg by two brake shoe brake cheek (3), two wheel cylinders, two retracing springs (17) symmetric arrangement, be provided with two wheelcylinder pistons (8) and two cover push rod systems in each wheel cylinder, two brake shoe brake cheek are respectively perpendicular to the both ends of the surface of wheel cylinder, it is characterized in that, each brake shoe brake cheek is provided with the microscler support holes more than two, and brake shoe brake cheek (3) is floated respectively on bolster [(18) and (the 22)] sliding sleeve [(19) and (21)] that is fixed on the base plate (23).
2, drg as claimed in claim 1 is characterized in that, said microscler support holes, bolster and bolster sliding sleeve are three.
3, drg as claimed in claim 1 is characterized in that, recoil spring (10) is housed in the said wheel cylinder.
4, drg as claimed in claim 1 is characterized in that, the excircle of wheelcylinder piston (8) is provided with more than one oil proof rubber seal ring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87202666 CN87202666U (en) | 1987-02-26 | 1987-02-26 | Wheel brake with brake shoe and brake drum being able to press wholly against each other |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87202666 CN87202666U (en) | 1987-02-26 | 1987-02-26 | Wheel brake with brake shoe and brake drum being able to press wholly against each other |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87202666U true CN87202666U (en) | 1987-10-14 |
Family
ID=4818775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87202666 Withdrawn CN87202666U (en) | 1987-02-26 | 1987-02-26 | Wheel brake with brake shoe and brake drum being able to press wholly against each other |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87202666U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305701C (en) * | 2001-02-26 | 2007-03-21 | 雅马哈发动机株式会社 | Brake device for wheel motor |
| CN105299096A (en) * | 2015-12-05 | 2016-02-03 | 重庆元创汽车整线集成有限公司 | Self-boosting drum type brake |
| CN105299095A (en) * | 2015-12-05 | 2016-02-03 | 重庆元创汽车整线集成有限公司 | Two leading shoe type brake |
| CN106141518A (en) * | 2016-08-30 | 2016-11-23 | 福建亚亨机械股份有限公司 | The bascule of control welding gun fine motion |
-
1987
- 1987-02-26 CN CN 87202666 patent/CN87202666U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305701C (en) * | 2001-02-26 | 2007-03-21 | 雅马哈发动机株式会社 | Brake device for wheel motor |
| CN105299096A (en) * | 2015-12-05 | 2016-02-03 | 重庆元创汽车整线集成有限公司 | Self-boosting drum type brake |
| CN105299095A (en) * | 2015-12-05 | 2016-02-03 | 重庆元创汽车整线集成有限公司 | Two leading shoe type brake |
| CN106141518A (en) * | 2016-08-30 | 2016-11-23 | 福建亚亨机械股份有限公司 | The bascule of control welding gun fine motion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |