CN104455119B - Brake clearance adjuster - Google Patents
Brake clearance adjuster Download PDFInfo
- Publication number
- CN104455119B CN104455119B CN201410776925.5A CN201410776925A CN104455119B CN 104455119 B CN104455119 B CN 104455119B CN 201410776925 A CN201410776925 A CN 201410776925A CN 104455119 B CN104455119 B CN 104455119B
- Authority
- CN
- China
- Prior art keywords
- mandrel
- bushing
- baffle plate
- offset
- stay
- 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.)
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- 238000010276 construction Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000000368 destabilizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Braking Arrangements (AREA)
Abstract
The invention discloses a kind of brake clearance adjuster, including alignment pin, double threaded screw, mandrel, spindle gasket, core body seat, elastomeric pad, shaft block ring, pulling sleeve, unidirectional needle bearing, bushing, ball, baffle plate, spring, stay and jump ring, the baffle plate has semi-spherical grooves with bushing, the ball is placed in semi-spherical grooves, the unidirectional needle bearing is engaged with bushing, outer ring is interference fitted with pulling sleeve, the baffle plate has internal spline, mandrel has external splines, both spline fitteds, the spring one end offsets with baffle plate, the other end offsets with stay, the jump ring is clamped in the mandrel groove of mandrel, one end offsets with stay, the mandrel carries internal thread, double threaded screw carries external screw thread, and both screw threads coordinate.The present invention being capable of adjust automatically friction plate and brake disc braking gap, simple in construction, dependable performance.
Description
Technical field
The present invention relates to a kind of gap of inch heavy truck air-pressure disc brake of air-pressure disc brake, especially 17.5 tune
Whole device.
Background technology
With heavy truck market flourish, to used in it brake require more and more higher, air-pressure disc brake with
Just progressively substitution drum brake enters heavy truck market to its excellent performance.As the key components and parts of air-pressure disc brake,
The performance of slack adjuster has obtained more concerns.And the existing gap for being applied to 17.5 inches of air-pressure disc brakes is adjusted
Whole device relies primarily on the relative friction forces transmission torque of friction pair, and reliability is not high.In the braking procedure of hundreds of thousands time once
Friction failure adjuster is to lose gap adjustment function.
The content of the invention
It is an object of the invention to provide one kind can adjust automatically friction plate and brake disc braking gap, it is simple in construction,
The brake clearance adjuster of dependable performance.
In order to achieve the above object, the technical scheme is that：A kind of brake clearance adjuster, including alignment pin,
Double threaded screw, mandrel, spindle gasket, core body seat, elastomeric pad, shaft block ring, pulling sleeve, unidirectional needle bearing, bushing, ball,
Baffle plate, spring, stay and jump ring, the baffle plate have semi-spherical grooves with bushing, and the ball is placed in semi-spherical grooves,
The inner ring of the unidirectional needle bearing is interference fitted with bushing, and the unidirectional needle bearing is engaged with bushing, outer ring and pulling sleeve
Interference fit, the baffle plate has internal spline, and mandrel has external splines, and both spline fitteds, the spring one end offsets with baffle plate, separately
One end is offseted with stay, and the jump ring is clamped in the mandrel groove of mandrel, and one end offsets with stay, and the mandrel is with interior
Screw thread, double threaded screw carry external screw thread, and both screw threads coordinate.
The mandrel coordinates with sleeve clearances.
Described spindle gasket one end offsets with mandrel, and the other end offsets with core body seat.
Described elastomeric pad one end offsets with core body seat, and one end of the other end and shaft block ring offsets, the shaft block ring
The other end offseted with pulling sleeve and bushing.
The alignment pin is fixedly connected with double threaded screw.
After said structure, the gap that the present invention can be in self-adjusting brake between brake disc and friction plate, its
Moment loading is transmitted by unidirectional needle bearing, ball and interior external splines, threaded adjusting gap, the design of spring and ball makes
Transmitted maximum moment is constant, it is to avoid the destabilizing factor that friction transmission torque is brought, it is simple in construction, reliable, relatively
The prior art of friction transmission torque, reduces the material technology requirement of part.
Brief description of the drawings
The present invention is further detailed explanation for the embodiment provided below in conjunction with accompanying drawing.
Fig. 1 is the structural front view of the brake clearance adjuster of the present invention；
Fig. 2 is sectional views of the Fig. 1 along line A-A；
Fig. 3 is the dimensional structure diagram of the brake clearance adjuster of the present invention.
Embodiment
As shown in Figure 1, 2, 3, a kind of brake clearance adjuster, including alignment pin 1, double threaded screw 2, mandrel 3, mandrel pad
Piece 4, core body seat 5, elastomeric pad 6, shaft block ring 7, pulling sleeve 8, unidirectional needle bearing 9, bushing 10, ball 11, baffle plate 12, spring
13rd, stay 14 and jump ring 15, the baffle plate 12 have semi-spherical grooves 12-1,10-1 with bushing 10, and the ball 11 is put
In in semi-spherical grooves 12-1,10-1, the unidirectional needle bearing 9 is engaged with bushing 10, and outer ring is interference fitted with pulling sleeve 8, institute
Stating baffle plate 12 has internal spline 12-2, and mandrel 3 has external splines 3-3, both spline fitteds, described one end of spring 13 and the phase of baffle plate 12
Support, the other end offsets with stay 14, the jump ring 15 is clamped in the mandrel groove 3-2 of mandrel 3, one end and the phase of stay 14
Support, the mandrel 3 carries external screw thread 2-1 with internal thread 3-1, double threaded screw 2, and both screw threads coordinate.
As shown in Fig. 2 the mandrel 3 coordinates with the gap of bushing 10.
As shown in Figure 1, 2, described one end of spindle gasket 4 offsets with mandrel 3, and the other end offsets with core body seat 5.
As shown in Fig. 2 described one end of elastomeric pad 6 offsets with core body seat 5, one end of the other end and shaft block ring 7 offsets,
The other end of the shaft block ring 7 offsets with pulling sleeve 8 and bushing 10.
As shown in Figure 1,3, the alignment pin 1 is fixedly connected with double threaded screw 2.
As shown in Figure 1, 2, 3, concrete function implementation process of the present invention is as follows：When there is gap between friction plate and brake disc
When, rocking arm drives pulling sleeve 8 to rotate, and the unidirectional Internal and external cycle of needle bearing 9 is interference fitted with bushing 10, pulling sleeve 8, and the torque of pulling sleeve 8 is made
Bushing 10 is transferred to by unidirectional needle bearing 9；Moment loading, baffle plate are transmitted by ball 11 between bushing 10 and baffle plate 12
12 rotate with bushing 10；Baffle plate 12 is inside and outside spline fitted with mandrel 3, and mandrel 3 is rotated with baffle plate 12；Mandrel 3 and double end spiral shell
The screw thread of bar 2 coordinates, and both relatively move, so that double threaded screw 2, which stretches out, reduces gap between friction plate and brake disc；As long as friction
There is gap between piece and brake disc, said process will be carried out, until gap disappears, gap adjustment process is completed.Such as Fig. 2 institutes
Show, the unidirectional only one of which direction of needle bearing 9 can transmit moment loading, if other direction is by moment loading, can not pass
Bushing 10 is handed to, is adjusted without gap.
As shown in Figure 1, 2, 3, the power of 13 pairs of transmission of ball 11 and spring provides constraints, if power is excessive, the meeting of baffle plate 12
Moved to the side of spring 13, so as to be skidded at ball 11, the torque of bushing 10 can not be transferred to baffle plate 12, gap by ball 11
Adjustment process stops.
Claims (3)
1. a kind of brake clearance adjuster, including alignment pin（1）, double threaded screw（2）, mandrel（3）, spindle gasket（4）, core body
Seat（5）, elastomeric pad（6）, shaft block ring（7）, pulling sleeve（8）, unidirectional needle bearing（9）, bushing（10）, ball（11）, baffle plate
（12）, spring（13）, stay（14）And jump ring（15）, it is characterised in that：The baffle plate（12）With bushing（10）Have
Semi-spherical grooves（12-1、10-1）, the ball（11）It is placed in semi-spherical grooves（12-1、10-1）It is interior, the unidirectional needle bearing（9）
With bushing（10）It is engaged, unidirectional needle bearing（9）Outer ring and pulling sleeve（8）Interference fit, the baffle plate（12）There is internal spline
（12-2）, mandrel（3）There is external splines（3-3）, both spline fitteds, the spring（13）One end and baffle plate（12）Offset, it is another
End and stay（14）Offset, the jump ring（15）It is clamped in mandrel（3）Mandrel groove（3-2）It is interior, one end and stay（14）
Offset, the mandrel（3）With internal thread（3-1）, double threaded screw（2）With external screw thread（2-1）, and both screw threads cooperations；Institute
State spindle gasket（4）One end and mandrel（3）Offset, the other end and core body seat（5）Offset；The elastomeric pad（6）One end and core
Housing（5）Offset, the other end and shaft block ring（7）One end offset, the shaft block ring（7）The other end and pulling sleeve（8）And
Bushing（10）Offset.
2. brake clearance adjuster according to claim 1, it is characterised in that：The mandrel（3）With bushing（10）Between
Gap coordinates.
3. brake clearance adjuster according to claim 1, it is characterised in that：The alignment pin（1）With double threaded screw
（2）It is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410776925.5A CN104455119B (en) | 2014-12-17 | 2014-12-17 | Brake clearance adjuster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410776925.5A CN104455119B (en) | 2014-12-17 | 2014-12-17 | Brake clearance adjuster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104455119A CN104455119A (en) | 2015-03-25 |
| CN104455119B true CN104455119B (en) | 2017-10-10 |
Family
ID=52901676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410776925.5A Active CN104455119B (en) | 2014-12-17 | 2014-12-17 | Brake clearance adjuster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104455119B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114562527A (en) * | 2021-07-29 | 2022-05-31 | 山东力得汽车科技股份有限公司 | Force increasing mechanism capable of generating axial displacement and axial thrust by rotation |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4034165A1 (en) * | 1990-06-07 | 1991-12-12 | Knorr Bremse Ag | DISC BRAKE FOR VEHICLES |
| US5794738A (en) * | 1996-11-12 | 1998-08-18 | Rockwell Heavy Vehicle Systems, Inc. | Disc brake with gear driven adjusting piston |
| CN201321054Y (en) * | 2008-12-16 | 2009-10-07 | 南车戚墅堰机车车辆工艺研究所有限公司 | Brake clearance adjusting device |
| CN202768690U (en) * | 2012-09-03 | 2013-03-06 | 枣庄泰德机械有限公司 | Air pressure disk type brake adjuster |
| CN203655982U (en) * | 2013-12-16 | 2014-06-18 | 南车戚墅堰机车车辆工艺研究所有限公司 | Gap adjusting mechanism of air pressure disk brake |
| CN103629279B (en) * | 2013-12-16 | 2017-02-15 | 中车戚墅堰机车车辆工艺研究所有限公司 | Gap adjusting mechanism for air pressure disc brake |
| CN103912615A (en) * | 2014-03-28 | 2014-07-09 | 南车戚墅堰机车车辆工艺研究所有限公司 | Brake cylinder with clearance adjustment function |
| CN204387172U (en) * | 2014-12-17 | 2015-06-10 | 南车戚墅堰机车车辆工艺研究所有限公司 | A kind of brake clearance regulator |
-
2014
- 2014-12-17 CN CN201410776925.5A patent/CN104455119B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104455119A (en) | 2015-03-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 213011 Wuyi Road, Qishuyan District, Jiangsu, China, No. 258, No. Applicant after: CRRC QISHUYAN INSTITUTE Co.,Ltd. Address before: 213011 Wuyi Road, Qishuyan District, Jiangsu, China, No. 258, No. Applicant before: CSR QISHUYAN INSTITUTE Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 213011 Wuyi Road, Jiangsu, Changzhou, No. 258 Applicant after: CRRC QISHUYAN INSTITUTE Co.,Ltd. Address before: 213011 Wuyi Road, Qishuyan District, Jiangsu, China, No. 258, No. Applicant before: CRRC QISHUYAN INSTITUTE Co.,Ltd. |
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| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 213011 258 Wuyi Road, Changzhou, Jiangsu Patentee after: CRRC Qishuyan Locomotive and Rolling Stock Technology Research Institute Co.,Ltd. Country or region after: China Address before: 213011 258 Wuyi Road, Changzhou, Jiangsu Patentee before: CRRC QISHUYAN INSTITUTE Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |