CN103244583B - A kind of worm screw two ends are provided with the brake clearance manual adjusting arm device of umbrella toothing - Google Patents
A kind of worm screw two ends are provided with the brake clearance manual adjusting arm device of umbrella toothing Download PDFInfo
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- CN103244583B CN103244583B CN201310113472.3A CN201310113472A CN103244583B CN 103244583 B CN103244583 B CN 103244583B CN 201310113472 A CN201310113472 A CN 201310113472A CN 103244583 B CN103244583 B CN 103244583B
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- worm screw
- umbrella
- toothing
- arm housing
- working hole
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Abstract
The invention discloses the brake clearance manual adjusting arm device that a kind of worm screw two ends are provided with umbrella toothing, be provided with at two matching surfaces adjusting arm housing rear and front end and worm screw and be with angled elastic material working hole, steel ball in the umbrella toothing at worm screw two ends and flexible material working hole coincide mutually, the elastic material at its housing two ends implements self-locking to worm screw umbrella toothing, simultaneously because the rigidity hardness of worm screw is greater than the hardness adjusting arm housing, the tooth bar of the umbrella toothing on worm screw and the matching surface of adjustment arm housing, in braking force and counter braking force impact process, umbrella gear rack on worm screw will adjust arm housing osculating plane, impact into the roller seating space symmetrical with umbrella gear rack.Its advantage is: long service life, and rapidly, return is fast in braking, easy to adjust, the constraint of not restricted power direction is installed, realizes adjustment arm housing and being synchronized with the movement of turbine, avoid frequent replacing, further improve the sensitivity of braking system, reliability, Security.
Description
Technical field
The present invention relates to a kind of worm screw two ends in brake system of car and be provided with the brake clearance manual adjusting arm device of umbrella toothing.
Background technique
In existing brake system of car, automobile braking adjusting arm is primarily of adjustment arm housing, worm gear, the parts compositions such as worm screw, rotate worm gear by adjustment worm screw thus band moving cam rotates, eliminate the unnecessary clearance between friction facing and brake drum, to reach best braking effect, adjustment arm is also responsible for transmission braking torque, the function of braking and return, so require in the course of the work can self-locking, and require the working life of high requirement.And existing adjustment arm generally adopts and exchanges bearing to carry out self-locking, its working life is very short, its inner worm gear, the frequent self-locking of worm screw and locking device mechanism was lost efficacy, and caused worm gear and braking adjusting arm housing not to be synchronized with the movement, make vehicle when braking, stop not in time after slowing down, can not return completely during end of braking, just there is driving hidden danger in this, therefore these parts must frequently be changed, and cause unnecessary waste.Self-locking was lost efficacy and was formed primarily of following factor: in existing brake system of car, and automobile braking adjusting arm is primarily of adjusting arm housing, worm gear, the parts compositions such as worm screw, the modulus of the tooth of its both worm and gear, standard pitch diameter, helical pressure angle is all identical, both are in overlapping transmitting torque acting process, because worm screw is to the frequently reciprocal braking impact force of worm gear, causes worm gear to exchange bearing and occur reaction thrust, cause adjustment axle backspin, brake clearance is strengthened, and braking distance lengthens, braking failure.Its backspin power is that general shaft type " locking " device is irresistible, and shaft type " locking " device will be made at short notice to destroy.Auto vendor is studied this problem all the time, also there is " locking " device of several different structure on the market, its basic " locking " object is all adjustment axle, making to adjust in Motor Vehicle Braking Procedure axle can not backspin, but because the braking reaction thrust of worm gear in braking process to worm screw and adjustment axle impacts violent, back and forth frequent, destroy the locking device on adjustment axle, even directly destroy adjustment arm housing.
Summary of the invention
The object of the invention is to the shortcoming overcoming prior art, a kind of worm screw two ends are provided to be provided with the brake clearance manual adjusting arm device of umbrella toothing, this structure is provided with umbrella toothing at worm screw two ends, be provided with at two matching surfaces adjusting arm housing rear and front end and worm screw and be with angled elastic material working hole, steel ball in the umbrella toothing at worm screw two ends and flexible material working hole coincide mutually, the elastic material at its housing two ends implements self-locking to worm screw umbrella toothing, simultaneously because the rigidity hardness of worm screw is greater than the hardness adjusting arm housing, the tooth bar of the umbrella toothing on worm screw and the matching surface of adjustment arm housing, in braking force and counter braking force impact process, umbrella gear rack on worm screw will adjust arm housing osculating plane, impact into the roller seating space symmetrical with umbrella gear rack, so just more strengthen the intensity of self-locking.Its advantage is long service life, and rapidly, return is fast in braking, easy to adjust, the constraint of not restricted power direction is installed, realizes adjustment arm housing and being synchronized with the movement of worm gear, avoid frequent replacing, further improve the sensitivity of braking system, reliability, Security.
The object of the invention is to be realized by following measures: it is primarily of adjustment arm housing, worm gear, worm screw, adjustment axle, steel ball, spring, spring compression bolt composition, the two ends of worm screw are provided with the tooth bar of umbrella toothing, be provided with between adjustment arm housing rear and front end and two matching surfaces of worm screw and be with angled elastic material working hole, spring, steel ball, spring compression bolt are housed in working hole; Steel ball in the umbrella toothing at worm screw two ends and flexible material working hole coincide mutually.
Described a kind of worm screw two ends are provided with the brake clearance manual adjusting arm device of umbrella toothing, rigidity hardness due to worm screw is greater than the hardness of adjustment arm housing, the tooth bar of the umbrella toothing on worm screw and the matching surface of adjustment arm housing, in braking force and counter braking force impact process, umbrella gear rack on worm screw will adjust arm housing osculating plane, impact into the roller seating space symmetrical with umbrella gear rack, so just more strengthen the intensity of self-locking.
Described a kind of worm screw two ends are provided with the brake clearance manual adjusting arm device of umbrella toothing, and the elastic material working hole on adjustment arm housing, is set to one side 1-6 hole or two-sided 1-6 hole.
Described a kind of worm screw two ends are provided with the brake clearance manual adjusting arm device of umbrella toothing, the tooth bar of umbrella toothing is provided with at the two ends of worm screw, modulus is set to 1 modulus-10 modulus, the number of teeth is set to 2 tooth-20 teeth, the angle of umbrella tooth, be set to 20 degree-68 degree, the height of umbrella tooth, be set to 1 millimeter-7.5 millimeters.
The brake clearance that described a kind of worm screw two ends are provided with umbrella toothing manually adjusts to be put, the angle of elastic material working hole is set to 17 degree---83 degree, the diameter of working hole is set to 6 millimeters---16 millimeters.
Technological scheme of the present invention, when implementing adjustment brake clearance to vehicle, just, anti-two direction rotary worm adjustment axles, its adjustment moment of torsion has exceeded the impacting force of steel ball to worm screw two ends umbrella gear rack, the umbrella tooth being arranged on worm screw on Worm adjusting bearing and two ends starts to rotate, now, steel ball in the working hole of adjustment arm housing rear and front end, by the reaction thrust of umbrella gear rack, steel ball in working hole starts to move to tooth top direction at the bottom of rack tooth and after crossing tooth top, pressure by return spring in working hole matches to return at the bottom of tooth, now there is significantly " click click " sound, worm screw is rotated and drives worm gear to rotate simultaneously, one side umbrella gear rack structure can be arranged to for some pick up trucks and special vehicle worm screw, on housing, elastic material working hole also can be arranged to one side simultaneously.
Accompanying drawing explanation
Fig. 1 is erection drawing of the present invention;
Fig. 2 is the schematic diagram that the present invention is arranged on the elastic material working hole on housing;
Fig. 3 is the work structuring schematic diagram of worm screw umbrella tooth of the present invention and elastic material working hole;
Fig. 4 be worm screw umbrella gear rack of the present invention and steel ball from the bottom of tooth to the operating diagram that tooth top moves.
Specific embodiments
As shown in Figure 1 and Figure 2, a kind of worm screw two ends are provided with the brake clearance manual adjusting arm device of umbrella toothing, band tooth bar worm screw locking adjustment arm of the present invention mainly comprises the parts compositions such as adjustment arm housing (1), adjustment axle (2), worm screw (3), worm gear (4), owing to being provided with and being with angled elastic material working hole (5) between adjustment arm housing (1) and two matching surfaces of worm screw (3), the steel ball (7) in the umbrella toothing at worm screw (3) two ends and flexible material working hole (5) coincide mutually.
When implementing adjustment brake clearance to vehicle, worm shaft (2) rotates, the umbrella gear rack at worm screw (3) two ends rotates simultaneously, overcome the pressure that in working hole (5), steel ball (7) produces it, by steel ball (7) from the bottom of the tooth of umbrella gear rack to the motion of tooth top direction, and to match to return at the bottom of tooth by the pressure of the middle return spring (6) of working hole (5) after crossing tooth top.When braking implemented by automobile, adjustment arm housing (1) stressed promotion worm screw (3), worm screw (3) power transmission is in worm gear (4), the umbrella gear rack being provided with steel ball (7) and worm screw (3) two ends owing to adjusting arm housing (1) and worm screw (3) two matching surface coincide mutually and locks, when braking, rigidity hardness due to worm screw (3) is greater than the hardness of adjustment arm housing (1), the tooth bar of the umbrella toothing on worm screw (3) and the matching surface of adjustment arm housing (1), in braking force and counter braking force impact process, umbrella gear rack on worm screw (3) will adjust arm housing (1) osculating plane, impact into the roller seating space symmetrical with umbrella gear rack, so just more strengthen the intensity of self-locking, its braking force is stronger, the identical power of locking is larger.The reaction thrust of the braking force that worm screw (3) produces and worm gear (4) can not cause and adjust axle (2) backspin, this braking adjusting arm avoids the brake clearance increasing because adjustment axle (2) backspin causes, the phenomenon of braking failure, its advantage is long service life, braking can be realized rapidly, return is fast, easy to adjust, the constraint of not restricted power direction is installed, realize being synchronized with the movement of adjustment arm housing (1) and worm gear (4), avoid frequent replacing, further improve the sensitivity of braking system, reliability, Security.
Claims (5)
1. worm screw two ends are provided with the brake clearance manual adjusting arm device of umbrella toothing, it is primarily of adjustment arm housing (1), worm gear (4), worm screw (3), adjustment axle (2), steel ball (7), spring (6), spring compression bolt (8) forms, it is characterized in that: the two ends of worm screw (3) are provided with the tooth bar of umbrella toothing, be provided with between adjustment arm housing (1) rear and front end and two matching surfaces of worm screw (3) and be with angled elastic material working hole (5), spring (6) is housed in working hole, steel ball (7), spring compression bolt (8), steel ball (7) in the umbrella toothing at worm screw (3) two ends and flexible material working hole (5) coincide mutually.
2. the brake clearance manual adjusting arm device of umbrella toothing is provided with according to a kind of worm screw two ends according to claim 1, it is characterized in that: the rigidity hardness due to worm screw (3) is greater than the hardness of adjustment arm housing (1), the tooth bar of the umbrella toothing on worm screw (3) and the matching surface of adjustment arm housing (1), in braking force and counter braking force impact process, umbrella gear rack on worm screw (3) will adjust arm housing (1) osculating plane, impact into the roller seating space symmetrical with umbrella gear rack, so just more strengthen the intensity of self-locking.
3. be provided with the brake clearance manual adjusting arm device of umbrella toothing according to a kind of worm screw two ends according to claim 1, it is characterized in that: the elastic material working hole (5) in adjustment arm housing (1), is set to one side 1-6 hole or two-sided 1-6 hole.
4. the brake clearance manual adjusting arm device of umbrella toothing is provided with according to a kind of worm screw two ends according to claim 1, it is characterized in that: the tooth bar being provided with umbrella toothing at the two ends of worm screw (3), modulus is set to 1 modulus-10 modulus, the number of teeth is set to, 2 tooth-20 teeth, the angle of umbrella tooth, is set to 20 degree-68 degree, the height of umbrella tooth, is set to 1 millimeter-7.5 millimeters.
5. the brake clearance manual adjusting arm device of umbrella toothing is provided with according to a kind of worm screw two ends according to claim 1, it is characterized in that: the angle of elastic material working hole (5) is set to 17 degree---83 degree, the diameter of working hole is set to 6 millimeters---and 16 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310113472.3A CN103244583B (en) | 2013-04-03 | 2013-04-03 | A kind of worm screw two ends are provided with the brake clearance manual adjusting arm device of umbrella toothing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310113472.3A CN103244583B (en) | 2013-04-03 | 2013-04-03 | A kind of worm screw two ends are provided with the brake clearance manual adjusting arm device of umbrella toothing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103244583A CN103244583A (en) | 2013-08-14 |
| CN103244583B true CN103244583B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310113472.3A Active CN103244583B (en) | 2013-04-03 | 2013-04-03 | A kind of worm screw two ends are provided with the brake clearance manual adjusting arm device of umbrella toothing |
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| Country | Link |
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| CN (1) | CN103244583B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3228796A1 (en) * | 1982-08-02 | 1984-02-02 | Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover | Automatic adjustment device for the brake lever of a brake |
| CN101173701A (en) * | 2007-04-17 | 2008-05-07 | 岳崙 | Arm for automatically regulating clearance of brake of automobile |
| CN201666323U (en) * | 2010-01-22 | 2010-12-08 | 黄石市重型汽车配件制造厂 | Gap adjuster |
| CN202338585U (en) * | 2011-12-01 | 2012-07-18 | 重庆卡福汽车制动转向系统有限公司 | Direct-arm manual adjusting arm worm device |
| CN203161925U (en) * | 2013-04-03 | 2013-08-28 | 绍兴铁安汽配制造有限公司 | Hand-operated brake clearance adjusting arm device with bevel gear structures arranged at two ends of worm |
-
2013
- 2013-04-03 CN CN201310113472.3A patent/CN103244583B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3228796A1 (en) * | 1982-08-02 | 1984-02-02 | Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover | Automatic adjustment device for the brake lever of a brake |
| CN101173701A (en) * | 2007-04-17 | 2008-05-07 | 岳崙 | Arm for automatically regulating clearance of brake of automobile |
| CN201666323U (en) * | 2010-01-22 | 2010-12-08 | 黄石市重型汽车配件制造厂 | Gap adjuster |
| CN202338585U (en) * | 2011-12-01 | 2012-07-18 | 重庆卡福汽车制动转向系统有限公司 | Direct-arm manual adjusting arm worm device |
| CN203161925U (en) * | 2013-04-03 | 2013-08-28 | 绍兴铁安汽配制造有限公司 | Hand-operated brake clearance adjusting arm device with bevel gear structures arranged at two ends of worm |
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| Publication number | Publication date |
|---|---|
| CN103244583A (en) | 2013-08-14 |
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| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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Denomination of invention: The utility model relates to a braking clearance manual adjusting arm device with an umbrella tooth structure at both ends of a worm Effective date of registration: 20211216 Granted publication date: 20160302 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 |