CN101782122B - Indicating device of automobile brake clearance manual adjusting arm - Google Patents
Indicating device of automobile brake clearance manual adjusting arm Download PDFInfo
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- CN101782122B CN101782122B CN2010101134240A CN201010113424A CN101782122B CN 101782122 B CN101782122 B CN 101782122B CN 2010101134240 A CN2010101134240 A CN 2010101134240A CN 201010113424 A CN201010113424 A CN 201010113424A CN 101782122 B CN101782122 B CN 101782122B
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- 239000012535 impurity Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 108010022579 ATP dependent 26S protease Proteins 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 229920005989 resin Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention provides an indicating device of an automobile brake clearance manual adjusting arm, which belongs to the technical field of automobiles, and solves the problem that the brake clearance is inconvenient to detect when the existing manual adjusting arm is adjusted. For the indicating device of the automobile brake clearance manual adjusting arm, the adjusting arm comprises a shell and a worm shaft arranged in the shell, and the outer end of the worm shaft extends out of the shell; and the indicating device comprises a dial arranged at the extended end of the worm shaft and a pointer arranged on the worm shaft, wherein the outer surface of the dial is provided with scale marks, the pointer is positioned above the outer surface of the dial and can rotate with the worm shaft synchronously, and the dial is also provided with a protective cover. The adjusting arm is provided with the indicating device, the adjusting accuracy can be displayed clearly through the pointer and the dial, and simultaneously the dial is provided with the protective cover to reduce external impurities and the like from entering the scale marks and the pointer so that the scale marks on the dial are completely visible.
Description
Technical field
The invention belongs to automobile technical field, particularly a kind of indicating device that can quick and precisely react the hand regulation arm of vehicle brake gap adjustment precision.
Background technique
The braking of automobile is to utilize the frictional force that is produced when contacting between brake shoe and the brake drum to realize.Contact friction in the vehicle traveling process between brake shoe and the brake drum is very frequent; Brake shoe lining can wear and tear gradually like this; Gap between brake shoe and the brake drum can become greatly gradually, causes braking moment meeting degradation failure, influences the automobile safety in utilization of braking system in the process of moving.In order to improve traveling security, in existing automobile braking mechanism, often be provided with automatic adjustment arm or hand regulation arm.These adjustment arms can between brake shoe and the brake drum because of compensating property of the brake clearance adjustment that increased of back of wearing and tearing, thereby make brake clearance between the two can remain on a constant value.
To the problem of all kinds of adjustment arms adjustment brake clearance low precisions on the market, the applicant has proposed one Chinese patent application and number has been a kind of improved automobile brake clearance manual adjusting arm of 200910095551.X, comprises housing, worm gear, worm screw and worm shaft; Worm gear and worm screw are located in the housing and are meshing with each other; Worm shaft and worm screw are connected, and between above-mentioned housing and worm shaft, are provided with engaging and disengaging gear, it is characterized in that; Described engaging and disengaging gear comprises clutch cover and spring; Described clutch cover is enclosed within on the worm shaft, between clutch cover and housing, is provided with circumferential positioning means, and an end face of clutch cover has some conical teeth one that distribute ringwise; Have the conical tooth two that can be meshed with above-mentioned conical tooth one on the worm shaft, described spring housing is located on the worm shaft and its two ends act on respectively on clutch cover and the housing.
When rotating above-mentioned worm shaft, the active force of rotation can be delivered on the clutch cover through gear, when the active force that rotates during greater than the active force of spring action on clutch cover and housing; On axial direction; Conical tooth two on the worm shaft can be crossed the clutch casing pressure distance of teeth, and at this moment the conical tooth on the worm shaft two can turn over teeth along sense of rotation, and the while just rotates with the worm screw that worm shaft is connected; Worm screw can drive worm gear and rotate; Worm gear drives brake cam again and rotates a small angle, and brake cam rotates and makes gap variation between the brake shoe drum, thereby realizes the precision adjustment to brake clearance.
The adjustment precision of above-mentioned vehicle manual adjustment arm is significantly improved.But this vehicle manual adjustment arm is to come the detector gap size with clearance gauge when the adjusting play; Very inconvenient in the time of will making adjustment like this; Even under the situation of no clearance gauge, adjust with the original method with counter-rotating 3/4 circle after the wheel hub locking, can influence adjustment precision to brake clearance; May cause wheel braking force inhomogeneous and cause and the car load deviation phenomenon have potential safety hazard.
Summary of the invention
The objective of the invention is to the problems referred to above that exist in the existing technology, proposed a kind of indicating device that can react the automobile brake clearance manual adjusting arm of vehicle brake gap adjustment precision intuitively.
The object of the invention can be realized through following technical proposal: the indicating device of automobile brake clearance manual adjusting arm; Described adjustment arm comprises housing and the worm shaft that is located in the housing; Housing is stretched out in described worm shaft outer end; It is characterized in that; This indicating device comprises the dial that is arranged on worm shaft external part place and is arranged on the pointer on the worm shaft, and described dial outer surface has scale marker, and described pointer is in the top of described dial outer surface and can rotates synchronously with worm shaft.
When worm shaft rotated, dial was motionless, and pointer follows worm shaft to rotate together, and the pointer rotation situation can reflect from the scale marker on the dial.Because each five equilibrium that worm shaft rotates is directly related with the gap adjustment,, make adjustment more accurate so can be reflected at intuitively on the dial through pointer when the brake clearance of automobile adjusted.
In the indicating device of above-mentioned automobile brake clearance manual adjusting arm, be with the protective housing of processing by transparent material on the described worm shaft, above-mentioned pointer and scale marker are positioned at protective housing.Protective housing is set reduces extraneous dust, water and enter on pointer and the dial, guarantee the high-visible of scale marker.
In the indicating device of above-mentioned automobile brake clearance manual adjusting arm, have shoulder block on the described worm shaft, described protective housing one end leans on shoulder block, and the other end leans on dial.
In the indicating device of above-mentioned automobile brake clearance manual adjusting arm, be provided with the position-limit mechanism that the restriction dial rotates between described dial and the housing.Through position-limit mechanism, prevent that dial from freely rotating.
In the indicating device of above-mentioned automobile brake clearance manual adjusting arm; Described position-limit mechanism comprises the fixing frame of stop screw and the ring-type that is connected in the dial outside; Described stop screw is on the base that is provided with between dial and the housing; Described base is connected on the housing, and screw can make fixing frame and base be connected on fixing frame by roof pressure when tightening screw.Through base is set, simplify the structure of housing, the structure of base is arranged to the shape that is easy to adjust with the needs that make things convenient for rotary dial.
As another kind of situation; In the indicating device of above-mentioned automobile brake clearance manual adjusting arm; Described position-limit mechanism comprises stop screw and the fixing frame that is connected in the dial outside; Described stop screw is arranged on the housing, and screw can make fixing frame and housing be connected on fixing frame by roof pressure when tightening screw.This structure also can be folded position-limiting action to scale.
In the indicating device of above-mentioned automobile brake clearance manual adjusting arm, described base is connected on the housing through fixing pin.Also can be connected on the housing through screw.
In the indicating device of above-mentioned automobile brake clearance manual adjusting arm, be provided with seal ring between described shoulder block and the protective housing.Seal ring is set makes protective housing have better sealability, reduce extraneous impurity and get in the protective housing.
In the indicating device of above-mentioned automobile brake clearance manual adjusting arm, described shoulder block place is provided with circular groove, and described seal ring is arranged in the circular groove.
In the indicating device of above-mentioned automobile brake clearance manual adjusting arm, described worm shaft is provided with the collar, and the described collar is enclosed within on the worm shaft circumferentially fixing with worm shaft, and the above-mentioned pointer and the collar are connected as a single entity.Circumferentially fixing through the collar and worm shaft, thus pointer can be rotated with the collar and worm shaft synchronously.
In the indicating device of above-mentioned automobile brake clearance manual adjusting arm, described protective housing is processed by glass.
In the indicating device of above-mentioned automobile brake clearance manual adjusting arm, described protective housing is formed from a resin.
Compared with prior art, the indicating device of automobile brake clearance manual adjusting arm of the present invention has advantage:
1, on the adjustment arm, set up indicating device, the adjustment precision can come into plain view through pointer and dial and show.The brake clearance of automobile is adjusted accurately, and it is consistent that the brake shoe of each axletree and brake drum gap guarantee to adjust to, and guarantees the conformity and the validity of automobile brake, improved Safety performance.
2, on dial, set up protective housing, the impurity that minimizing is extraneous etc. enters on scale marker and the pointer, makes the scale marker on the dial high-visible.
3, make dial rotatable through unclamping stop screw, make things convenient for brake clearance adjustment after, the scale marker that pointer is corresponding is got back to original state again, makes gap adjustment next time more directly perceived.
Description of drawings
Fig. 1 is the cross-sectional view of the indicating device of this automobile brake clearance manual adjusting arm.
Fig. 2 is the three-dimensional decomposition texture schematic representation of the indicating device of this automobile brake clearance manual adjusting arm.
Fig. 3 is the structural representation among the embodiment 2 of this automobile brake clearance manual adjusting arm.
Among the figure, 1, housing; 2, worm shaft; 21, shoulder block; 22, circular groove; 3, dial; 31, scale marker; 32, breach; 4, pointer; 5, the collar; 6, protective housing; 61, circular hole; 62, convex edge; 7, seal ring; 8, fixing pin; 9, clutch cover; 91, conical tooth one; 10, gear; 10a, conical tooth two; 11, spring; 12, stop screw; 13, fixing frame; 13a, convex shoulder; 13b, positioning hole; 14, base; One section on 14a, step; Two sections on 14b, step; 14c, tapped hole; 14d, through hole; 15, locating stud; 16, boss.
Embodiment
Below be specific embodiment of the present invention and combine accompanying drawing, technological scheme of the present invention is done further to describe, but the present invention is not limited to these embodiments.
Embodiment 1
As depicted in figs. 1 and 2, the present invention adjusts arm and comprises housing 1, worm shaft 2 and be arranged on engaging and disengaging gear between the two.Engaging and disengaging gear comprises clutch cover 9 and spring 11; Clutch cover 9 is enclosed within on the worm shaft 2, and an end face of clutch cover 9 has 30 conical teeth 1 that distribute ringwise, is with gear 10 on the worm shaft 2; Gear 10 is circumferentially fixing with worm shaft 2; Have conical tooth two 10a with conical tooth one 91 equal numbers on the gear 10, and conical tooth two 10a can be meshed with conical tooth 1, spring 11 is set on the worm shaft 2 and its two ends act on respectively on clutch cover 9 and the housing 1.Structure through spline and keyway between worm shaft 2 among the present invention and the gear 10 is connected.
The indicating device of automobile brake clearance manual adjusting arm of the present invention comprises dial 3, pointer 4, protective housing 6 and can limit the position-limit mechanism that dial rotates.
Dial 3 in the form of a ring; Dial 3 is enclosed within on the worm shaft 2, on outer surface, has scale marker 31, and the scale marker 31 among the present invention comprises 30 scales and the other angle value of scale that is uniformly distributed with setting on dial 3 outer surfaces ringwise; Angle value begins from zero degree; Every lattice 12 degree, the rest may be inferred, and angle value does not show in accompanying drawing 3.On the circumferential surface of dial 3, also be provided with breach 32.
Pointer 4 is connected as a single entity with the collar 5, has in the inboard of the collar 5 with worm shaft 2 and forms the spline that circumferentially is connected, and during rotary worm axle 2, pointer 4 can rotate with the collar 5 and worm shaft 2 synchronously.
Have shoulder block 21 in the outer end of worm shaft 2,21 places are provided with circular groove 22 at shoulder block.Protective housing 6 is processed the tubular structure of an end opening by transparent glass material; This end has the convex edge 62 to outer process; Protective housing has circular hole 61 on 6 the other end, and protective housing 6 is enclosed within on the worm shaft 2, and the one of which end leans on the shoulder block 21 of worm shaft 2; The other end leans on dial 3, and the pointer 4 and the collar 5 are between protective housing 6 and dial 3.Between protective housing 6 and shoulder block 21, be provided with seal ring 7, seal ring 7 is positioned at circular groove 22, seal ring 7 is set makes protective housing 6 have better sealability, reduces extraneous impurity and gets in the protective housing 6, makes the scale marker 31 on the dial 3 keep clear.
Position-limit mechanism comprises stop screw 12 and the fixing frame 13 that is connected in dial 3 outsides.Stop screw 12 is arranged on the base 14 between dial 3 and the housing 1; Base 14 cylindraceous has one section 14a of step and two sections 14b of step; The diameter of one section 14a of step radially has tapped hole 14c greater than the diameter of two sections 14b of step on the sidewall of two sections 14b of step, stop screw 12 is arranged in the tapped hole 14c; Base 14 is axially arranged with three through hole 14d along it, and is fixed on the housing 1 through three fixing pins 8.Fixing frame 13 is a structure cylindraceous, and the one of which end has interior prominent convex shoulder 13a, and on the sidewall of fixing frame 13, radially has the positioning hole 13b of a perforation.After installing, fixing frame 13 is enclosed within simultaneously on one section 14a of step of dial 3 and base 14; And its convex shoulder 13a leans on the convex edge 62 of protective housing; The breach that is positioned at dial 3 32 places that positioning hole 13b on fixing frame 13 sidewalls is corresponding are provided with locating stud 15 in positioning hole 13b, locating stud 15 is connected with fixing frame 13; And its inner roof pressure is at breach 32 places of dial 3, thereby dial 3 and fixing frame 13 are connected.Stop screw 12 roof pressures rotate thereby limit dial 3 on fixing frame 13 when tightening stop screw 12; When unclamping stop screw 12, rotational fixation frame 13, dial 3 can rotate with fixing frame 13.
After automobile brake clearance manual adjusting arm of the present invention is installed; Gear 10 is positioned at housing 1; The one of which end leans on dial 3, and conical tooth two 10a of the other end cooperate with the conical tooth 1 of clutch cover 9, between gear 10 and dial 3, are provided with seal ring; Reduce impurity and get in the housing 1, influence housing 1 inner proper functioning.Because gear 10 all circumferentially is fixedly connected with worm shaft 2 with the collar 5; So when rotary worm axle 2; The active force that rotates is delivered on the clutch cover 9 through gear 10; When the active force that rotates acted on the active force on clutch cover 9 and the housing 1 greater than spring 11, on axial direction, conical tooth two 10a on the gear 10 can press clutch cover 9 distance of teeth; Conical tooth two 10a on the gear 10 can turn over teeth along sense of rotation; Simultaneously pointer 4 turns over lattice with respect to the scale on the dial 3, and the situation that worm shaft 2 rotates directly scale and the angle value from the dial 3 shows, and accurately and intuitively reacts gap variation between the brake shoe drum.Brake clearance is screwed stop screw 12 after having adjusted ratio, and stop screw 12 and fixing frame 13 are unclamped; Rotational fixation frame 13 drives dials 3 and rotates again, and makes the scale marker on the corresponding dial 3 of pointer 4 return zero again, stop screw 12 is tightened again, and fixing frame 13 and dial 3 are fixed on this position, is convenient to adjustment next time brake clearance.
As shown in Figure 3; Present embodiment is similar with embodiment's 1 26S Proteasome Structure and Function, and wherein stop screw 12 is arranged on housing 1 convex platform 16, and fixing frame 13 is a structure cylindraceous; The one of which end has interior prominent convex shoulder 13a, and on the sidewall of fixing frame 13, has the positioning hole 13b of a perforation.After fixing frame 13 is installed; Be enclosed within simultaneously on the boss 16 of dial 3 and housing 1, and its convex shoulder 13a leans on the convex edge 62 of protective housing 6, the positioning hole 13b on fixing frame 13 sidewalls is corresponding is positioned at dial 3 places; In positioning hole 13b, be provided with locating stud 15; Locating stud 15 is connected with fixing frame 13, its inner roof pressure on dial 3, thereby dial 3 and fixing frame 13 are connected.The screw roof pressure rotates thereby limit dial 3 on fixing frame 13 when tightening stop screw 12; When unclamping stop screw 12, rotational fixation frame 13, dial 3 can rotate with fixing frame 13.
Specific embodiment described herein only is that the present invention's spirit is illustrated.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used terms such as housing 1, worm shaft 2, shoulder block 21, circular groove 22, dial 3, scale marker 31, breach 32, pointer 4, the collar 5, protective housing 6, circular hole 61, convex edge 62, seal ring 7, fixing pin 8, clutch cover 9, conical tooth 1, gear 10, conical tooth two 10a, spring 11, stop screw 12, fixing frame 13, convex shoulder 13a, positioning hole 13b, base 14, one section 14a of step, two sections 14b of step, tapped hole 14c, through hole 14d, locating stud 15, boss 16 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; It all is contrary with spirit of the present invention being construed to any additional restriction to them.
Claims (7)
1. the indicating device of automobile brake clearance manual adjusting arm; Described adjustment arm comprises housing (1) and is located at the worm shaft (2) in the housing (1); Housing (1) is stretched out in described worm shaft (2) outer end; It is characterized in that; This indicating device comprises the dial (3) that is arranged on worm shaft (2) external part place and is arranged on the pointer (4) on the worm shaft (2), and described dial (3) outer surface has scale marker (31), and described pointer (4) is in the top of described dial (3) outer surface and can rotates synchronously with worm shaft (2); Be with the protective housing of being processed by transparent material (6) on the described worm shaft (2), above-mentioned pointer (4) and scale marker (31) are positioned at protective housing (6); Have shoulder block (21) on the described worm shaft (2), described protective housing (6) one ends lean on shoulder block (21), and the other end leans on dial (3); Be provided with the position-limit mechanism that restriction dial (3) rotates between described dial (3) and the housing (1).
2. the indicating device of automobile brake clearance manual adjusting arm according to claim 1; It is characterized in that; Described position-limit mechanism comprises stop screw (12) and is connected in the fixing frame (13) of the ring-type in dial (3) outside; Described stop screw (12) is positioned on the base (14) that is provided with between dial (3) and the housing (1); Described base (14) is connected on the housing (1), tightens stop screw (12), and stop screw (12) can make fixing frame (13) and base (14) be connected on fixing frame (13) by roof pressure.
3. the indicating device of automobile brake clearance manual adjusting arm according to claim 1; It is characterized in that; Described position-limit mechanism comprises stop screw (12) and is connected in the fixing frame (13) in dial (3) outside; Described stop screw (12) is arranged on the housing (1), and when tightening stop screw (12), stop screw (12) can make fixing frame (13) and housing (1) be connected on fixing frame (13) by roof pressure.
4. the indicating device of automobile brake clearance manual adjusting arm according to claim 2 is characterized in that, described base (14) is connected on the housing (1) through fixing pin (8).
5. the indicating device of automobile brake clearance manual adjusting arm according to claim 1 is characterized in that, is provided with seal ring (7) between described shoulder block (21) and the protective housing (6).
6. the indicating device of automobile brake clearance manual adjusting arm according to claim 5 is characterized in that, described shoulder block (21) locates to be provided with circular groove (22), and described seal ring (7) is arranged in the circular groove (22).
7. according to the indicating device of claim 1 or 5 or 6 described automobile brake clearance manual adjusting arms; It is characterized in that; Described worm shaft (2) is provided with the collar (5); The described collar (5) is enclosed within on the worm shaft (2) and worm shaft (2) is circumferentially fixed, and above-mentioned pointer (4) is connected as a single entity with the collar (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101134240A CN101782122B (en) | 2010-01-26 | 2010-01-26 | Indicating device of automobile brake clearance manual adjusting arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101134240A CN101782122B (en) | 2010-01-26 | 2010-01-26 | Indicating device of automobile brake clearance manual adjusting arm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101782122A CN101782122A (en) | 2010-07-21 |
| CN101782122B true CN101782122B (en) | 2012-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101134240A Active CN101782122B (en) | 2010-01-26 | 2010-01-26 | Indicating device of automobile brake clearance manual adjusting arm |
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| Country | Link |
|---|---|
| CN (1) | CN101782122B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838484A (en) * | 2017-11-27 | 2019-06-04 | 上海华银电器有限公司 | A kind of brake air gap adjusting device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022464B (en) * | 2010-12-01 | 2012-12-19 | 陈招文 | Display device for automobile adjusting arm |
| CN109790890B (en) * | 2016-10-06 | 2020-12-01 | 沃尔沃卡车集团 | Wheel brake device |
-
2010
- 2010-01-26 CN CN2010101134240A patent/CN101782122B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838484A (en) * | 2017-11-27 | 2019-06-04 | 上海华银电器有限公司 | A kind of brake air gap adjusting device |
| CN109838484B (en) * | 2017-11-27 | 2020-10-23 | 上海华银电器有限公司 | Brake air gap adjusting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101782122A (en) | 2010-07-21 |
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Effective date of registration: 20190403 Address after: 431800 Factory Building of Huazhong Automobile Parts Industrial Park, Jingshan Economic Development Zone, Jingmen City, Hubei Province Patentee after: Hubei Benda Intelligent Technology Co., Ltd. Address before: 317602 No. 43 Kanmen Harbour West Road, Yuhuan County, Zhejiang Province Patentee before: Chen Zhaowen |