CN202790247U - Automobile brake gap automatic adjusting arm - Google Patents
Automobile brake gap automatic adjusting arm Download PDFInfo
- Publication number
- CN202790247U CN202790247U CN 201220400955 CN201220400955U CN202790247U CN 202790247 U CN202790247 U CN 202790247U CN 201220400955 CN201220400955 CN 201220400955 CN 201220400955 U CN201220400955 U CN 201220400955U CN 202790247 U CN202790247 U CN 202790247U
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- CN
- China
- Prior art keywords
- automatic adjusting
- adjusting arm
- clutch
- clutch gear
- shell body
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- Expired - Fee Related
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Abstract
The utility model relates to an automobile brake gap automatic adjusting arm which can resolve the problem that over adjustment or lacking adjustment is caused by mismatching of a free gap set value of the automobile brake gap automatic adjusting arm and a free gap set value needed by an axle brake. The technical scheme which needs to be resolved includes that the automobile brake gap automatic adjusting arm comprises a shell body and a worm, wherein a arm body is arranged on the shell body, the back end of the worm inside the shell body is connected with a tail spring of the tail portion of the shell body, and the front end of the worm is installed on the shell body through an adjusting screw. Besides, a clutch gear sleeve and a clutch gear are respectively installed on the front end of the worm. Two ends of a clutch spring are respectively connected with the clutch gear sleeve and the clutch gear which in a cone-teeth shape. A fixed plate is installed on the shell body in a fixed mode. A spline is in an L-shape. The upper end of the spline is connected with the clutch gear and the lower end of the spline is arranged inside a notch in the fixed plate. A return spring is installed on the spline. The automobile brake gap automatic adjusting arm is novel and unique in structure, simple and reasonable, safe and reliable, capable of reducing maintenance cost, and long in service life. Furthermore, the automobile brake gap automatic adjusting arm is innovation of a brake gap automatic adjusting arm.
Description
Technical field
The utility model relates to automobile braking device, particularly a kind of car brake interval automatic adjusting arm.
Background technique
At present, the car brake interval automatic adjusting arm that uses both at home and abroad, its free clearance setting device great majority are to be hidden in the automatic adjusting arm enclosure interior, its free clearance setting value of each description all immobilizes, and can't adjust." driver plate " formula automatic adjusting arm of minority such as WABCO company and Clayton Dewandre company, although its free clearance setting device is in the automatic adjusting arm outside, but its free clearance setting value is also fixed, and change the free clearance value by the size that changes disk poking notch or the size that fluctuates the pin diameter;
Owing to not mating of the free clearance setting value of automatic adjusting arm manufactory design and the needed free clearance value of automobile factory's car load bridge brake, will produce following two kinds of situations:
1, when the free clearance setting value of automatic adjusting arm design during less than the needed free clearance value of bridge brake, will produce " toning " is the transition compensation, make bridge brake with brake work, it is overheated to produce, and tyre break and traffic accident appear in severe patient;
2, when the free clearance setting value of automatic adjusting arm design during greater than the needed free clearance value of bridge brake, will produce " less stress " is undercompensation, is that the bridge brake brake is weak, also easy accident.Also can produce this phenomenon because of component wear after long-term the use
For the automobile of operating, because the wearing and tearing of braking system, design load when the free clearance value of bridge brake actual demand is dispatched from the factory with new car is can be not the same, brake shoe and brake drum are easily damaged partss, when regular servicing, sometimes need to change, at this moment will make the free clearance setting value of automatic adjusting arm design match just more difficult.The easier generation of " toning " or " less stress " phenomenon, it is large not only to cause maintenance to expend, and has also affected bus dispatching rate, and the traffic accident that causes thus also happens occasionally.Therefore, the improvement of car brake interval automatic adjusting arm is imperative.
Summary of the invention
For above-mentioned situation, for overcoming the defective of prior art, the purpose of the utility model just provides a kind of car brake interval automatic adjusting arm, and what can effectively solve the needed free clearance value of car brake interval automatic adjusting arm free clearance setting value and bridge brake does not mate the problem that causes " toning " or " less stress " phenomenon.
The technological scheme that the utility model solves is, comprise housing and worm screw, the arm body is arranged on the housing, the rear end of worm screw in the housing links to each other with the tail spring of housing afterbody, the front end of worm screw is contained on the housing through adjusting screw, the front end of worm screw is equipped with respectively clutch tooth cover and clutch gear, the two ends of brake spring link to each other with the clutch gear of cone gear form with the clutch tooth cover respectively, fixed plate is installed on the housing, tooth bar is L-shaped, the upper end of tooth bar links to each other with clutch gear, and the elbow of lower end places in the breach on the fixed plate, and return spring is housed on the tooth bar.
The utility model novel structure is unique, and advantages of simple is safe and reliable, reduces upkeep cost, and long service life is the innovation on the brake automatic adjusting arm.
Description of drawings
Fig. 1 is sectional front view of the present utility model.
Fig. 2 is left view of the present utility model.
Fig. 3 is section left view of the present utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Provided by Fig. 1 to Fig. 3, comprise housing and worm screw, it is characterized in that, arm body 9 is arranged on the housing 10, the rear end of worm screw 1 in the housing 10 links to each other with the tail spring 14 of housing 10 afterbodys, the front end of worm screw 1 is contained on the housing 10 through adjusting screw 3, the front end of worm screw 1 is equipped with respectively the clutch gear 7 of clutch tooth cover 5 and cone gear form, the two ends of brake spring 6 link to each other with clutch gear 7 with clutch tooth cover 5 respectively, fixed plate 4 is installed on the housing 10, and tooth bar 8 is L-shaped, and the upper end of tooth bar 8 links to each other with clutch gear 7, the elbow 13 of lower end places in the breach 11 on the fixed plate 4, and return spring 12 is housed on the tooth bar 8.
In order to guarantee using effect, on described clutch tooth cover 5 and the clutch gear 7 internal spline is arranged all, external splines with worm screw 1 front portion meshes respectively, and clutch gear 7 and the brake spring 6 of worm screw 1, clutch tooth cover 5, cone gear form consist of cone tooth-like one-way clutch structures (claiming again overrunning clutch).
Described clutch tooth cover (or claiming axle sleeve) is the body that adopts powder metallurgy to make, and has self-lubricating function.
The utility model in use, when automobile brake gap surpasses the setting gap, adjusting arm body 9 rotates along the direction of arrow, at this moment be fixed on the housing 10 owing to fixed plate 4, promote to move a segment distance on the tooth bar 8 by the breach 11 on the fixed plate, tooth bar 8 promotes to be rotated by the one-way clutch structure (claiming again overrunning clutch) that worm screw 1, clutch tooth cover 5, clutch gear 7 and brake spring 6 consist of; Otherwise release arm body 9 hour racks 8 move down, promoting the one-way clutch structure rotates, clutch gear 7 drives worm screw 1 by brake spring 6 and clutch tooth cover 5 and rotates, thereby make worm gear 9 turn over a corresponding angle, the gap of friction plate and automotive hub is reduced, can auto-compensation when the gap surpass is set in the skidding gap, make automobile in driving procedure, keep a constant clearance between friction plate and wheel hub, namely keep braking gap constant, simple to operate, safe and reliable, thus avoided hand regulation arm because adjusting the brake sideslip that causes not prompt enough, poor stop, the generation of the phenomenon such as hot has improved Security and the working life of driving greatly, thereby has improved the economic benefit of operation; This small product size is little, and self-regulated easy for installation is sensitive, stable working, reliable.Clutch gear, tooth bar, clutch tooth cover adopt the powdered metallurgical material with self-lubricating function, and surface friction drag is little, and transmission is sensitive; Worm gear, worm screw are adopted large modulus displacement, and the unequal pressure angle makes the reasonable intensity of product structure high.
Compared with prior art, have following distinguishing feature:
1, zigzag system is unidirectional more safer than spring single clutch from device, reliable, longer service life;
2, adopt new material to have self-lubricating function powder metallurgy axle sleeve, the butter of need not regularly annotating is lubricated; Reduce upkeep cost, long service life is the innovation on the brake automatic adjusting arm.
Claims (2)
1. car brake interval automatic adjusting arm, comprise housing and worm screw, it is characterized in that, arm body (9) is arranged on the housing (10), the rear end of worm screw (1) in the housing (10) links to each other with the tail spring (14) of housing (10) afterbody, the front end of worm screw (1) is contained on the housing (10) through adjusting screw (3), the front end of worm screw (1) is equipped with respectively the clutch gear (7) of clutch tooth cover (5) and cone gear form, the two ends of brake spring (6) link to each other with clutch gear (7) with clutch tooth cover (5) respectively, fixed plate (4) is installed on the housing (10), tooth bar (8) is L-shaped, the upper end of tooth bar (8) links to each other with clutch gear (7), the elbow of lower end (13) places in the breach (11) on the fixed plate (4), and return spring (12) is housed on the tooth bar (8).
2. car brake interval automatic adjusting arm according to claim 1, it is characterized in that, on described clutch tooth cover (5) and the clutch gear (7) internal spline is arranged all, the external splines anterior with worm screw (1) meshes, and the clutch gear (7) of worm screw (1), clutch tooth cover (5), cone gear form and brake spring (6) consist of the tooth-like one-way clutch structure of cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400955 CN202790247U (en) | 2012-08-14 | 2012-08-14 | Automobile brake gap automatic adjusting arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400955 CN202790247U (en) | 2012-08-14 | 2012-08-14 | Automobile brake gap automatic adjusting arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202790247U true CN202790247U (en) | 2013-03-13 |
Family
ID=47817513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220400955 Expired - Fee Related CN202790247U (en) | 2012-08-14 | 2012-08-14 | Automobile brake gap automatic adjusting arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202790247U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967981A (en) * | 2014-05-16 | 2014-08-06 | 绍兴铁安汽配制造有限公司 | Brake clearance manual regulating arm device of external lock tooth-shaped structure |
| CN106438782A (en) * | 2016-12-12 | 2017-02-22 | 隆中控股集团有限公司 | Automobile braking gap automatic adjusting arm |
-
2012
- 2012-08-14 CN CN 201220400955 patent/CN202790247U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967981A (en) * | 2014-05-16 | 2014-08-06 | 绍兴铁安汽配制造有限公司 | Brake clearance manual regulating arm device of external lock tooth-shaped structure |
| CN103967981B (en) * | 2014-05-16 | 2017-06-20 | 绍兴铁安汽配制造有限公司 | A kind of brake clearance manual adjusting arm device of external lock tooth-shape structure |
| CN106438782A (en) * | 2016-12-12 | 2017-02-22 | 隆中控股集团有限公司 | Automobile braking gap automatic adjusting arm |
| CN106438782B (en) * | 2016-12-12 | 2020-05-22 | 隆中控股集团股份有限公司 | Automatic adjusting arm for automobile brake clearance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20140814 |
|
| EXPY | Termination of patent right or utility model |