CN104500623A - Clearance adjuster of pneumatic disc brake - Google Patents
Clearance adjuster of pneumatic disc brake Download PDFInfo
- Publication number
- CN104500623A CN104500623A CN201410777070.8A CN201410777070A CN104500623A CN 104500623 A CN104500623 A CN 104500623A CN 201410777070 A CN201410777070 A CN 201410777070A CN 104500623 A CN104500623 A CN 104500623A
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- mandrel
- lining
- offset
- spring
- sleeve
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- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000000368 destabilizing effect Effects 0.000 description 1
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Abstract
The invention discloses a clearance adjuster of a pneumatic disc brake. The clearance adjuster of the pneumatic disc brake comprises a locating pin, a double-thread screw, a mandrel, a mandrel washer, a core seat, a spring washer, an axis check ring, a shifting sleeve, a ball, a lining, a spring, a one-way needle bearing, a lock sheet, a snap spring and an internally splined sleeve; hemispheric grooves are respectively formed in the shifting sleeve and the lining; the ball is arranged in the hemispheric grooves; the one-way needle bearing is matched with the excircle of the internally splined sleeve; the internal spline of the internally splined sleeve is matched with the external spline of the mandrel; the outer ring of the one-way needle bearing is in interference fit with the lining; the shifting sleeve and the mandrel in clearance fit; the lining and the mandrel are in the clearance fit; one end of the spring is abutted against the lining, and the other end of the spring is abutted against the lock sheet; the snap spring is clamped in the mandrel groove of the mandrel, and one end of the snap spring is abutted against the lock sheet; the mandrel has internal threads; the double-thread screw has external threads, and the internal threads and the external threads are matched. The clearance adjuster disclosed by the invention has the advantages that a brake clearance between a friction plate and a brake disc can be automatically adjusted, the structure is simple, and the performance is reliable.
Description
Technical field
The present invention relates to a kind of air-pressure disc brake, especially the slack adjuster of 17.5 inches of heavy card air-pressure disc brakes.
Background technique
With focusing on the flourish of card market, require more and more higher to its break used, air-pressure disc brake just progressively replaces drum brake with the performance of its excellence and enters heavily card market.As the key components and parts of air-pressure disc brake, the performance of slack adjuster obtains more concern.And the existing slack adjuster being applicable to 17.5 inches of air-pressure disc brakes mainly relies on the relative friction forces carry-over moment of friction pair, reliability is not high.Once namely friction inefficacy regulator loses gap adjustment function in the braking process that hundreds of thousands is secondary.
Summary of the invention
The object of the present invention is to provide one automatically can adjust friction plate and brake disc braking gap, structure be simple, the air-pressure disc brake slack adjuster of reliable performance.
In order to achieve the above object, technological scheme of the present invention is: a kind of air-pressure disc brake slack adjuster, comprise locating stud, double threaded screw, mandrel, spindle gasket, core body seat, resilient pad, shaft block ring, pulling sleeve, ball, lining, spring, unidirectional needle bearing, lock sheet, jump ring and inner spline sleeve, described pulling sleeve and lining have semi-spherical grooves, described ball is placed in semi-spherical grooves, described unidirectional needle bearing coordinates with the cylindrical of inner spline sleeve, the internal spline of inner spline sleeve coordinates with the external splines of mandrel, the outer ring of unidirectional needle bearing and lining interference fit, described pulling sleeve and mandrel Spielpassung, described lining and mandrel Spielpassung, described spring one end and lining offset, the other end and lock sheet offset, described jump ring is clamped in the mandrel groove of mandrel, one end and lock sheet offset, described mandrel is with internal thread, double threaded screw is with outside thread, and both screw-thread fit.
One end and the mandrel of described spindle gasket offset, and the other end and core body seat offset.
One end and the core body seat of described resilient pad offset, and one end of the other end and shaft block ring offsets, and the other end of described shaft block ring and pulling sleeve and mandrel offset.
Described locating stud is fixedly connected with double threaded screw.
After adopting said structure, the present invention can gap in self-adjusting brake between brake disc and friction plate, and it is by ball, unidirectional needle bearing and the effect of interior external splines carry-over moment, threaded adjusting gap, avoid the destabilizing factor that friction carry-over moment is brought, structure is simple, reliable.
Accompanying drawing explanation
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 air-pressure disc brake slack adjuster of the present invention;
Fig. 2 is the sectional view of Fig. 1 along A-A line;
Fig. 3 is the perspective view of air-pressure disc brake slack adjuster of the present invention.
Embodiment
As Fig. 1, 2, shown in 3, air-pressure disc brake slack adjuster of the present invention, a kind of air-pressure disc brake slack adjuster, comprises locating stud 1, double threaded screw 2, mandrel 3, spindle gasket 4, core body seat 5, resilient pad 6, shaft block ring 7, pulling sleeve 8, ball 9, lining 10, spring 11, unidirectional needle bearing 12, lock sheet 13, jump ring 14 and inner spline sleeve 15, described pulling sleeve 8 has semi-spherical grooves 8-1 with lining 10, 10-1, described ball 9 is placed in semi-spherical grooves 8-1, in 10-1, described unidirectional needle bearing 12 coordinates with the cylindrical of inner spline sleeve 15, the internal spline of inner spline sleeve 15 coordinates with the external splines 3-3 of mandrel 3, the outer ring of unidirectional needle bearing 12 and lining 10 interference fit, described pulling sleeve 8 and mandrel 3 Spielpassung, described lining 10 and mandrel 3 Spielpassung, described spring 11 one end and lining 10 offset, the other end and lock sheet 13 offset, described jump ring 14 is clamped in the mandrel groove 3-2 of mandrel 3, and one end and lock sheet 13 offset, and described mandrel 3 is with internal thread 3-1, double threaded screw 2 is with outside thread 2-1, and both screw-thread fit.
As shown in Figure 1, 2, one end and the mandrel 3 of described spindle gasket 4 offset, and the other end and core body seat 5 offset.
As shown in Figure 1, 2, one end and the core body seat 5 of described resilient pad 6 offset, and one end of the other end and shaft block ring 7 offsets, and the other end of described shaft block ring 7 and pulling sleeve 8 and mandrel 3 offset.
As shown in Figure 1,3, described locating stud 1 is fixedly connected with double threaded screw 2.
As shown in Figure 1, 2, 3, concrete function implementation procedure of the present invention is as follows: when there is gap when between friction plate and brake disc, and rocking arm drives pulling sleeve 8 to rotate, and by ball 9 carry-over moment between pulling sleeve 8 and lining 10, lining 10 rotates with pulling sleeve 8; Unidirectional needle bearing 12 outer ring and lining 10 interference fit, spline fitted inside and outside inner ring and mandrel 3, the moment loading that mandrel 3 transmits by lining 10; Mandrel 3 and double threaded screw 2 screw-thread fit, both relative movements, thus double threaded screw 2 stretches out gap between reduction friction plate and brake disc; As long as there is gap between friction plate and brake disc, said process will carry out, until gap disappears, gap adjustment process completes.As shown in Figure 2, unidirectional needle bearing 12 only has a direction can carry-over moment effect, if other direction is subject to moment loading, then cannot be passed to mandrel 3.As shown in Figure 1, 2, 3, spring 11 plays a part to limit the power transmitted, if power is excessive, then lining 10 can move to spring 11 side with unidirectional needle bearing 12, thus skids at ball 9 place, and the moment of pulling sleeve 8 cannot be passed to lining 10.
Claims (4)
1. an air-pressure disc brake slack adjuster, comprises locating stud (1), double threaded screw (2), mandrel (3), spindle gasket (4), core body seat (5), resilient pad (6), shaft block ring (7), pulling sleeve (8), ball (9), lining (10), spring (11), unidirectional needle bearing (12), lock sheet (13), jump ring (14) and inner spline sleeve (15), is characterized in that: described pulling sleeve (8) and lining (10) have semi-spherical grooves (8-1, 10-1), described ball (9) is placed in semi-spherical grooves (8-1, 10-1), described unidirectional needle bearing (12) coordinates with the cylindrical of inner spline sleeve (15), the internal spline of inner spline sleeve (15) coordinates with the external splines (3-3) of mandrel (3), the outer ring of unidirectional needle bearing (12) and lining (10) interference fit, described pulling sleeve (8) and mandrel (3) Spielpassung, described lining (10) and mandrel (3) Spielpassung, described spring (11) one end and lining (10) offset, the other end and lock sheet (13) offset, described jump ring (14) is clamped in the mandrel groove (3-2) of mandrel (3), one end and lock sheet (13) offset, described mandrel (3) is with internal thread (3-1), double threaded screw (2) is with outside thread (2-1), and both screw-thread fit.
2. air-pressure disc brake slack adjuster according to claim 1, is characterized in that: one end and the mandrel (3) of described spindle gasket (4) offset, and the other end and core body seat (5) offset.
3. air-pressure disc brake slack adjuster according to claim 1, it is characterized in that: one end and the core body seat (5) of described resilient pad (6) offset, one end of the other end and shaft block ring (7) offsets, and the other end of described shaft block ring (7) and pulling sleeve (8) and mandrel (3) offset.
4. air-pressure disc brake slack adjuster according to claim 1, is characterized in that: described locating stud (1) is fixedly connected with double threaded screw (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410777070.8A CN104500623B (en) | 2014-12-17 | 2014-12-17 | Clearance adjuster of pneumatic disc brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410777070.8A CN104500623B (en) | 2014-12-17 | 2014-12-17 | Clearance adjuster of pneumatic disc brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104500623A true CN104500623A (en) | 2015-04-08 |
| CN104500623B CN104500623B (en) | 2017-02-22 |
Family
ID=52942055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410777070.8A Active CN104500623B (en) | 2014-12-17 | 2014-12-17 | Clearance adjuster of pneumatic disc brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104500623B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1356226A (en) * | 1971-08-28 | 1974-06-12 | Honda Motor Co Ltd | Disc brakes |
| DE2507012A1 (en) * | 1974-02-19 | 1975-08-21 | Girling Ltd | INDEPENDENT ADJUSTMENT DEVICE FOR A VEHICLE BRAKE |
| DE3405027A1 (en) * | 1984-02-13 | 1985-08-14 | Alfred Teves Gmbh, 6000 Frankfurt | Actuating device for a friction brake |
| JP2001159436A (en) * | 1999-11-30 | 2001-06-12 | Tokico Ltd | Initial adjusting method and device for pad clearance of electrical disc brake |
| CN1402821A (en) * | 1999-12-02 | 2003-03-12 | 哈尔德克斯制动产品股份公司 | Disc brake |
| CN102112771A (en) * | 2008-08-01 | 2011-06-29 | 克诺尔商用车制动系统有限公司 | Adjusting device for disk brake |
| CN103115094A (en) * | 2011-07-06 | 2013-05-22 | 隆中控股集团有限公司 | Regulator of clearance self-regulating mechanism in automobile disc brake |
| CN103629279A (en) * | 2013-12-16 | 2014-03-12 | 南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 |
| CN204387171U (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 air-pressure disc brake slack adjuster |
-
2014
- 2014-12-17 CN CN201410777070.8A patent/CN104500623B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1356226A (en) * | 1971-08-28 | 1974-06-12 | Honda Motor Co Ltd | Disc brakes |
| DE2507012A1 (en) * | 1974-02-19 | 1975-08-21 | Girling Ltd | INDEPENDENT ADJUSTMENT DEVICE FOR A VEHICLE BRAKE |
| DE3405027A1 (en) * | 1984-02-13 | 1985-08-14 | Alfred Teves Gmbh, 6000 Frankfurt | Actuating device for a friction brake |
| JP2001159436A (en) * | 1999-11-30 | 2001-06-12 | Tokico Ltd | Initial adjusting method and device for pad clearance of electrical disc brake |
| CN1402821A (en) * | 1999-12-02 | 2003-03-12 | 哈尔德克斯制动产品股份公司 | Disc brake |
| CN102112771A (en) * | 2008-08-01 | 2011-06-29 | 克诺尔商用车制动系统有限公司 | Adjusting device for disk brake |
| CN103115094A (en) * | 2011-07-06 | 2013-05-22 | 隆中控股集团有限公司 | Regulator of clearance self-regulating mechanism in automobile disc brake |
| CN103629279A (en) * | 2013-12-16 | 2014-03-12 | 南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 |
| CN204387171U (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 air-pressure disc brake slack adjuster |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104500623B (en) | 2017-02-22 |
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Address after: 213011 Wuyi Road, Qishuyan District, Jiangsu, China, No. 258, No. Patentee after: CRRC QISHUYAN INSTITUTE Co.,Ltd. Address before: 213011 Wuyi Road, Qishuyan District, Jiangsu, China, No. 258, No. Patentee before: CSR QISHUYAN INSTITUTE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 213011 Wuyi Road, Jiangsu, Changzhou, No. 258 Patentee after: CRRC QISHUYAN INSTITUTE Co.,Ltd. Address before: 213011 Wuyi Road, Qishuyan District, Jiangsu, China, No. 258, No. Patentee before: CRRC QISHUYAN INSTITUTE Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| 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 |