CN103967981B - A kind of brake clearance manual adjusting arm device of external lock tooth-shape structure - Google Patents
A kind of brake clearance manual adjusting arm device of external lock tooth-shape structure Download PDFInfo
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- CN103967981B CN103967981B CN201410213269.8A CN201410213269A CN103967981B CN 103967981 B CN103967981 B CN 103967981B CN 201410213269 A CN201410213269 A CN 201410213269A CN 103967981 B CN103967981 B CN 103967981B
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Abstract
A kind of shortcoming it is an object of the invention to overcome prior art, there is provided brake clearance manual adjusting arm device of external lock tooth-shape structure.The structure is in the outside front side of adjustment arm housing (1), the locking device of tooth-shape structure is set, being matched with the outside front of adjustment arm housing (1) in adjustment axle (7), face is same to set symmetrical tooth-shape structure, to reach the locking that mutually coincide, the identical coupling mechanism force of two tooth-shape structures comes the outside rear of self-adjusting arm housing (1) and sets elastic material.When positive and negative two direction rotary worm adjusts axle, both symmetrical teeth overcome the thrust produced by elastic construction to be moved to tooth top direction from bottom of the tooth, and cross tooth top return bottom of the tooth and match.And now Worm adjusting bearing (7) slide anteroposterior in worm screw (2), the braking adjusting arm of the device its advantage is light the tighter of lock, adjustment, further increases sensitivity, reliability, the security of brakes.
Description
Technical field
The present invention relates to a kind of brake clearance manual adjusting arm device of external lock tooth-shape structure in goods vehicle brakes.
Background technology
In existing goods vehicle brakes, automobile brake clearance manual adjusting arm is important portion in brakes
Part.Its Main Function is adjustment brake clearance, transmits braking torque, is responsible for the function of braking, return.This requires to adjust arm
Mechanism can adjust brake clearance during work, i.e., assembling and repairman can be light under the conditions of the strength of itself
Adjustment, but being capable of self-locking in braking operation, it is impossible to there is the phenomenon of back skating.In braking, move rapidly braking adjusting arm
Make to form braking；During end of braking, adjustment arm return can be released into braking rapidly.Require that this device there should be peace higher simultaneously
Quan Xing, service life more long, it is to avoid frequently change.And existing goods vehicle braking adjusting arm technology be use worm gear,
The technology of worm decelerating machine, although function of this technology itself with self-locking, it is due to worm gear, the mould of the tooth of both worm screws
Number, reference diameter, helical pressure angle all same, the two forms the oblique angle dress at helical pressure angle during overlap assembly
With angular clearances.When automobile brake, because brake force comes from the worm screw braking impact frequently reciprocal to worm gear.At this moment, two
Oblique angle between person results in propulsive thrust of the worm gear to worm screw, causes the backspin of worm screw and worm shaft " microsecond ", makes brake clearance
Skidding distance extension, causes brake fade.So repairman will carry out frequently brake clearance to braking adjusting arm adjusting
It is whole, to ensure the safety of driving.And the braking adjusting arm device of existing multiple technologies, the operation principle of its basic " locking ", have
Two kinds：The first is that adjustment worm shaft is carried out " locking ".But, due in braking procedure worm gear to worm screw and adjustment axle system
Power is violent with propulsive thrust impact, frequently reciprocal, destroys " locking " device on adjustment axle, causes " locking " to fail.Second
Plant two matching surfaces with worm screw inside adjustment arm housing and " locking " device is set, this device solves asking for " locking " really
Topic, but assembling and repairman are to be difficult to carry out gap adjustment by the strength of itself.
The content of the invention：
Shortcoming it is an object of the invention to overcome prior art, there is provided a kind of brake clearance of external lock tooth-shape structure is manual
Adjustment arm assembly.The structure is being adjusted on front side of outside arm housing, sets the locking device of tooth-shape structure, with adjustment on adjustment axle
The arm housing outside front face that matches equally sets symmetrical tooth-shape structure, to reach mutually coincide locking, two tooth-shape structures
Identical coupling mechanism force come self-adjusting arm housing outside rear set elastic material.When positive and negative two direction rotary worm adjusts axle
When, both symmetrical teeth overcome the thrust produced by elastic construction to be moved to tooth top direction from bottom of the tooth, and cross tooth top time
Position bottom of the tooth matches.And now Worm adjusting bearing slide anteroposterior in worm screw, the braking adjusting arm of the device its advantage is lock
Tighter, adjustment is light, further increases sensitivity, reliability, the security of brakes.
The purpose of the present invention is realized by following measures：It is main by adjustment arm housing, worm screw, elastic device,
Dustproof protective cover, adjusts connecting bolt, and worm gear adjusts axle, the tooth-shape structure on adjustment axle, the tooth-shape structure on adjustment arm housing
Composition.Adjust arm housing outside front and tooth-shape structure is set, it is same with the face that matched in front of outside arm housing is adjusted in adjustment axle
Symmetrical tooth-shape structure is set, to reach the locking that mutually coincide.Adjustment axle is through worm screw and adjustment arm housing outside rear
Elastic device connection, the elastic device at rear be by adjust axle for the tooth-shape structure of front two is provided identical coupling mechanism force.Work as tune
When whole arm housing outside rear sets tooth-shape structure, conversely, elastic device is then arranged on front.Tooth-shape structure is provided in adjustment
The exterior space of arm housing, the braking torque according to produced by adjustment arm, tooth-shape structure is sized to and adjustment arm housing
External dimensions synchronization is set greater than adjusting arm housing external dimensions, is adjusting in front of outside arm housing, in adjustment axle
Heart hole is set, the tooth of involute triangle modulus, tooth, the tooth of disk shape modulus of semicircle modulus, is set in front of adjustment axle
, to reach the locking that mutually coincide, tooth-shape structure can be by modern technology, can direct casting for the tooth of same shape modulus；
Press-fit by technology or weld or spline assembling method, installed in the front or behind of the outside of adjustment arm housing.
A kind of brake clearance manual adjusting arm device of described external lock tooth-shape structure, adjustment arm housing outside in front of or
Rear, sets tooth-shape structure, and its number of teeth may be configured as the tooth of 3 tooth -30, and the height of tooth can be set to 0.20 millimeter -8 millimeters.Tooth
Modulus may be configured as the modulus of 0.5 modulus -12.
A kind of brake clearance manual adjusting arm device of described external lock tooth-shape structure, adjustment arm housing outside in front of or
Rear, the elastic device of setting can be arranged respectively to：Rigidity spring structure, rigidity steel-sheet type structure, high-strength rubber cushion
Structure.The thrust of its elastic construction is 4N.m-15N.m.
A kind of brake clearance manual adjusting arm device of described external lock tooth-shape structure, its adjustment axle be through worm screw, and
The slide anteroposterior in worm screw, its assembling structure uses square hole type or spline programme of work.
Technical scheme, because programme of work " locking " structure that use is external lock tooth-shape structure is provided in adjusting
The exterior space of whole arm housing, its can according to the braking torque produced by adjustment arm, the tooth form of " locking " structure can be set to
Adjustment arm housing external dimensions synchronization, the tooth form that structure " is locked " if necessary can be set to more than adjustment arm housing external dimensions.
When adjustment brake clearance is implemented to vehicle, positive and negative two direction rotary worm adjustment axle, worm screw rotate and drive worm gear rotation, together
When adjustment moment of torsion surpassed the thrust of " locking ".Two tooth-shape structures of external lock start to produce tooth to jump, and mutual tooth is from bottom of the tooth to tooth
Move and matched by the thrust return bottom of the tooth of elastic material after crossing tooth top in top direction.Now have obvious " click, click, click "
The sound.When vehicle implements braking under steam, due to the externalizing of the housing of " locking " structure, the thrust moment of torsion of " locking "
Super-strengthening, the reverse friction power that its two change braking forces thereto is produced with counter braking force, the thrust of brake force stronger " locking " is more
The strong intensity of self-locking.Its brake force is stronger, and the identical power of locking is bigger.Technical scheme is solved compared with original technology
Determine original technology：Shortcoming that is loose, scattered, falling, slide.This new technology improves reliability, sensitivity, the security of brakes.
Brief description of the drawings：
Fig. 1 is installation diagram of the invention.
Fig. 2 is the tooth-shape structure schematic diagram that the present invention is arranged on hull outside.
Fig. 3 is the schematic diagram of tooth type structures on present invention adjustment axle.
Fig. 4 is three kinds of schematic diagrames of structure of elastic device of the present invention.
Fig. 5 is the adjustment assembly schematic diagram of the embodiment of the present invention.
Specific embodiment：
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described,
But the present invention is not limited to these case study on implementation.
Embodiment 1：
As Figure 1-Figure 5, the brake clearance manual adjusting arm device of a kind of external lock tooth-shape structure of the invention, including adjustment
Arm housing 1, worm screw 2, elastic material：(rigidity spring 3a, rigidity steel disc shell fragment 3b, high pressure rubber pad 3c) dustproof protective cover 4, tune
The tooth-shape structure 9 on tooth-shape structure 8, adjustment arm housing on bearing connecting bolt 5, worm gear 6, adjustment axle 7, adjustment axle.Worm screw 2
It is respectively arranged in the worm screw groove and worm wheel aperture of adjustment arm housing with worm gear 6；Adjustment axle 7 is by adjustment arm housing 1 and worm screw 2
Center line centre bore is through installation.Adjustment axle 7 rear side is connected with elastic material 3 by assembling bolt 5.
Embodiment 2：
As shown in figure 1, the tooth form of the anterior tooth-shape structure 9 for setting of adjustment arm housing 1 is casting, the number of teeth is 10 teeth,
2.5 millimeters of the height of tooth, the modulus of tooth is 2 moduluses.The elastic device set at the rear of adjustment arm housing 1 is rigidity spring
3a, its elastic pressure is 8N.m.Tooth-shape structure on adjustment axle 7 matches with the size of tooth-shape structure 9 on adjustment arm housing.
Embodiment 3：
As shown in figure 5, the tooth-shape structure of adjustment arm housing 1 front portion is that live body extrusion forming then press-fits completion, the number of teeth is 7
Tooth, 4 millimeters of the height of tooth, the modulus of tooth is 3 moduluses.The elastic device set at the rear of adjustment arm housing 1 is high intensity rubber
Rubber cushion 3c its adjustment pressure be 10N.m.
Specific embodiment described herein is only that spirit of the present invention is illustrated.Technology neck belonging to of the invention
The technical staff in domain can make various modifications or supplement or using similar mode replacement to the specific embodiment for describing,
But without departing from spirit of the invention or surmount scope defined in appended claims.
Although more having used adjustment arm body 1, worm screw 2, elastic device 3a, 3b, 3c dustproof protective cover 4, tune herein
The tooth-shape structure 9, live body on tooth-shape structure 8, adjustment arm housing on bearing connecting bolt 5, worm gear 6, adjustment axle 7, adjustment axle
The terms such as tooth-shape structure 9b, but it is not precluded from using the possibility of other terms.Using these terms just for the sake of more convenient
Describe and explain essence of the invention；Being construed as any additional limitation is disagreed with spirit of the present invention
's.
Claims (4)
1. a kind of brake clearance manual adjusting arm device of external lock tooth-shape structure, it mainly by adjustment arm housing (1), worm screw (2),
Elastic device, dustproof protective cover (4), adjustment connecting bolt (5), worm gear (6), adjustment axle (7), the tooth-shape structure on adjustment axle
(8), the tooth-shape structure composition on adjustment arm housing, it is characterised in that：The outside front of adjustment arm housing (1) sets tooth-shape structure,
Being matched in the outside front of adjustment axle (7) and adjustment arm housing (1), face is same to set symmetrical tooth-shape structure, to reach mutually
Coincide locking, and adjustment axle (7) is that the elastic device (3) through the outside rear of worm screw (2) and adjustment arm housing (1) is connected, rear
Elastic device be by adjust axle (7) for the tooth-shape structure of front two provide coincide coupling mechanism force, when adjust arm housing (1) outside after
When side sets tooth-shape structure, conversely, elastic device is then arranged on front, tooth-shape structure is provided in adjusting the outer of arm housing (1)
Portion space, the braking torque according to produced by adjustment arm, tooth-shape structure is sized to and adjustment arm housing (1) external dimensions
Synchronization is set greater than adjusting arm housing (1) external dimensions, in the outside front of adjustment arm housing (1), in adjustment axle (7)
Heart hole sets the tooth of involute triangle modulus, tooth, the tooth of disk shape modulus of semicircle modulus, sets same in adjustment axle (7)
The tooth of sample shape modulus is locked with reaching mutually to coincide, the direct casting of tooth-shape structure；Press-fit by technology or weld or
Spline assembling method, installed in the front or behind of the outside of adjustment arm housing (1).
2. according to a kind of brake clearance manual adjusting arm device of the external lock tooth-shape structure described in claim 1, it is characterised in that：
In the outside front or behind of adjustment arm housing (1), the tooth-shape structure of setting, its number of teeth is set to the tooth of 3 tooth -30, and the height of tooth sets
0.20 millimeter -8 millimeters are set to, the modulus of tooth is set to the modulus of 0.5 modulus -12.
3., according to a kind of brake clearance manual adjusting arm device of the external lock tooth-shape structure described in claim one, its feature exists
In：In the outside front or behind of adjustment arm housing (1), elastic device is set, is arranged respectively to：Rigidity spring structure (3a),
Rigidity steel-sheet type structure (3b), high-strength rubber pad (3c) formula structure, the thrust of its elastic construction is 4N.m-15N.m.
4., according to a kind of brake clearance manual adjusting arm device of the external lock tooth-shape structure described in claim one, its feature exists
In：Adjustment axle (7) is and the slide anteroposterior in worm screw (2) through worm screw (2), and its assembling structure uses square hole type or spline
Programme of work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410213269.8A CN103967981B (en) | 2014-05-16 | 2014-05-16 | A kind of brake clearance manual adjusting arm device of external lock tooth-shape structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410213269.8A CN103967981B (en) | 2014-05-16 | 2014-05-16 | A kind of brake clearance manual adjusting arm device of external lock tooth-shape structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103967981A CN103967981A (en) | 2014-08-06 |
| CN103967981B true CN103967981B (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410213269.8A Active CN103967981B (en) | 2014-05-16 | 2014-05-16 | A kind of brake clearance manual adjusting arm device of external lock tooth-shape structure |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482082B (en) * | 2014-12-09 | 2018-05-25 | 绍兴铁安汽配制造有限公司 | A kind of brake clearance manual adjusting arm device of round tooth chip architecture |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB931848A (en) * | 1960-12-18 | 1963-07-17 | Westinghouse Brake & Signal | Improvements in and relating to automatic slack adjusters for use with brake assemblies |
| CN202392017U (en) * | 2011-12-28 | 2012-08-22 | 绍兴驰达汽车配件制造有限公司 | Rollback-preventing adjusting arm for precise adjustment |
| CN102720782A (en) * | 2012-06-21 | 2012-10-10 | 晋江市万宏汽车部件有限公司 | Hand-operated adjusting arm capable of completely locking adjusting shaft and worm |
| CN202790247U (en) * | 2012-08-14 | 2013-03-13 | 张积岭 | Automobile brake gap automatic adjusting arm |
| CN202833788U (en) * | 2012-10-28 | 2013-03-27 | 陈槐 | Adjustable brake adjusting arm |
| CN204153023U (en) * | 2014-05-16 | 2015-02-11 | 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 |
-
2014
- 2014-05-16 CN CN201410213269.8A patent/CN103967981B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB931848A (en) * | 1960-12-18 | 1963-07-17 | Westinghouse Brake & Signal | Improvements in and relating to automatic slack adjusters for use with brake assemblies |
| CN202392017U (en) * | 2011-12-28 | 2012-08-22 | 绍兴驰达汽车配件制造有限公司 | Rollback-preventing adjusting arm for precise adjustment |
| CN102720782A (en) * | 2012-06-21 | 2012-10-10 | 晋江市万宏汽车部件有限公司 | Hand-operated adjusting arm capable of completely locking adjusting shaft and worm |
| CN202790247U (en) * | 2012-08-14 | 2013-03-13 | 张积岭 | Automobile brake gap automatic adjusting arm |
| CN202833788U (en) * | 2012-10-28 | 2013-03-27 | 陈槐 | Adjustable brake adjusting arm |
| CN204153023U (en) * | 2014-05-16 | 2015-02-11 | 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 |
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| Publication number | Publication date |
|---|---|
| CN103967981A (en) | 2014-08-06 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Brake clearance manual adjusting arm device with external lock tooth structure Effective date of registration: 20211216 Granted publication date: 20170620 Pledgee: Agricultural Bank of China Limited Zhuji sub branch Pledgor: SHAOXING TIE'AN AUTO PARTS MANUFACTURING Co.,Ltd. Registration number: Y2021980014992 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |