CN104989749A - Multi-plate dry brake - Google Patents
Multi-plate dry brake Download PDFInfo
- Publication number
- CN104989749A CN104989749A CN201510394518.2A CN201510394518A CN104989749A CN 104989749 A CN104989749 A CN 104989749A CN 201510394518 A CN201510394518 A CN 201510394518A CN 104989749 A CN104989749 A CN 104989749A
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- parking
- friction
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- driving
- piston
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- 230000000694 effects Effects 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 7
- 239000003921 oil Substances 0.000 description 10
- 238000003825 pressing Methods 0.000 description 6
- 239000010727 cylinder oil Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000010665 pine oil Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The invention relates to a multi-plate dry brake, and belongs to the technical field of automobiles. The brake comprises a circular tubular shell. A set of friction plates is distributed at one end, close to a friction plate baffle, of the shell at intervals, wherein the outer circles of the friction plates and inner holes of the shell circumferentially restrain each other and axially form sliding pairs. A brake disc forming a friction pair with every two adjacent friction plates is installed between the friction plates. Inner holes of the brake discs and a power output shaft circumferentially restrain each other and axially form sliding pairs. One end of the shell is provided with travelling installation holes and parking installation holes distributed circumferentially, alternatively and evenly. A travelling piston is installed in eachtravelling installation hole. A travelling cylinder is formed on the end face of a plunger baffle. A parking piston is installed in eachparking installation hole. An annular parking cylinder is formed between the outer circle of eachparking piston and the corresponding parking installation hole. According to the multi-plate dry brake, travelling and parking are integrally designed, and the structure is compact; a plunger cylinder and the friction pairs are stressed uniformly and are not likely to be clamped; due to the adoption of the full-disc multi-plate friction pair structure, the thermal capacity is large, and the service life is long.
Description
Technical field
The present invention relates to a kind of braking device, especially a kind of multi-disc dry brake, belongs to technical field of vehicle.
Background technique
According to the applicant understood, orthodox car and engineering vehicle adopt caliper disc brake or overall multi-sheet wet-type break more.Caliper disc brake is due to cheap, braking ability is comparatively stable, therefore most of market is occupied, but this type of break is under the constant prerequisite of power source, the lifting of stopping power can only realize by increasing braking radius, and the increase of size brings difficulty to the distribution of car load chassis installing space, and the friction area of caliper disc brake friction pair is relatively little, friction disc wear is very fast, and the replacement cycle is short, and result adds maintenance and user cost.Overall multi-sheet wet-type break long service life, strong to environmental suitability, its multidisc structure easily realizes seriation, lower to requirements of installation space, but this type of brake structural is complicated, piston shaft, footpath are smaller, cause easy piston catching phenomenon, and it is higher to the parts machining required precision with matching relationship, manufacture cost is high, in addition friction pair adopts forced oil cooling, adds extra supporting hydraulic system and cost, often only requires on higher high-end engineering vehicle in property non-maintaining to break.
In addition, in the various brake systems that present vehicle automobile and engineering vehicle adopt, Service Brake and Parking Brake are all arranged apart, therefore respective independent installing space is needed, and the layout of the annexes such as corresponding pipeline is also therefore and more complicated, result, when the vehicle that project organization is compact, is directly used for reference above-mentioned prior art and must be caused that the distribution of design space is very difficult even cannot be realized.
Summary of the invention
The object of the invention is to: for above-mentioned prior art Problems existing, by architecture advances, propose a kind of under guarantee fundamental function prerequisite, the multi-disc dry brake that structure is very compact, thus the Aided design requirement meeting the narrow and small vehicle in design space.
In order to reach above object, the basic technical scheme of multi-disc dry brake of the present invention is: the circular tube shaped housing comprising two ends difference fixed friction sheet baffle plate and plunger baffle plate, one end one group of cylindrical spaced apart and the shell inner hole circumference of the contiguous friction plate baffle plate of described housing retrain and axially form the friction plate of sliding pair, the brake disc forming with it friction pair is housed between adjacent friction plate, and the endoporus of described brake disc and pto＝power take-off circumference retrain and axially form sliding pair; One end of the contiguous plunger baffle plate of described housing has the driving and parking mounting hole that circumference evenly distributes alternately, and described driving mounting hole is equipped with the driving piston of convergence plunger baffle plate under elastic component effect, and described plunger baffle plate end face has the depression forming driving cylinder; Described parking mounting hole is equipped with the parking piston of convergence friction pair under elastic component effect, forms the parking cylinder of annular between described parking mounting hole and parking outside piston.
During driving, control to parking cylinder oil-filled, driving cylinder is in pressure release state, parking plunger by under the promotion of high pressure oil vertically towards moving away from friction pair direction, overcome elastic acting force, make friction pair pine oil, vehicle is able to freely advance in the clear.During service brake, control parking cylinder oil-filled with driving cylinder, parking plunger is in state described above simultaneously, release friction pair.Driving plunger under high pressure oil effect vertically friction pair direction move, pressing friction sheet and brake disc gradually, thus realize driving time braking.During parking braking, control driving cylinder and the pressure release simultaneously of parking cylinder, parking plunger moves to friction pair direction under the promotion of parking elastic component, and pressing friction sheet and brake disc, realize parking braking gradually.
As can be seen here, adopt the present invention can realize required various braking manipulations completely, and this automobile-used overall multiple-disc brake has following remarkable advantage:
1) because parking cylinder and driving cylinder organically combine, be distributed in same circumference, not only solve the easy clamping stagnation problem of single oil cylinder, and make row, Parking Brake integrated, without the need to arranging Parking Brake separately, therefore compact structure, saves vehicle frame space, brings great convenience to the topology layout of car load;
2) friction pair of complete-disc structure takes full advantage of utilization area, achieves and realize larger braking torque in less installing space, and long service life, save maintenance cost;
3) oil-filled the while of parking cylinder and driving cylinder during service brake, parking plunger release friction pair, driving plunger pressing friction are secondary, driving cylinder and the pressure release simultaneously of parking cylinder during parking braking, parking plunger pressing friction under elastic reset effect is secondary, and driving plunger then discharges friction pair under elastic reset effect; Thus rely on elastic reset braking to achieve the most reasonably control mode with dependence hydraulic braking of driving a vehicle, parking.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the XB-XB sectional view of Fig. 2.
Fig. 4 is the XC-XC sectional view of Fig. 3.
Embodiment
Embodiment one
The present embodiment is the overall multi-disc dry brake of a kind of plunger type, and as shown in Figure 1,2,3, 4, fixed friction sheet baffle plate 1 and plunger baffle plate 3 are distinguished in housing 2 two ends of circular tube shaped to its structure.
One end one group of cylindrical spaced apart of the contiguous friction plate baffle plate 1 of housing is retrained by external splines 9-1 and housing 2 endoporus spline circumference and is axially formed the friction plate 9 of sliding pair, the brake disc 10 forming with it friction pair is housed between adjacent friction plate, and the endoporus of brake disc 10 is retrained by the axle external splines circumference of internal spline 10-1 and pto＝power take-off and is axially formed sliding pair.
One end of the contiguous plunger baffle plate 3 of housing has the driving and parking mounting hole that circumference evenly distributes alternately.Driving mounting hole as shown in Figure 1, is equipped with the driving piston 7 of convergence plunger baffle plate 3 under return spring 4-3 effect, and the end face of plunger baffle plate 3 has the depression forming driving cylinder 8.Specifically, driving mounting hole is the step hole with large end and small end, driving piston 7 is the hollow stepped cylindrical matched with driving mounting hole, the circumferential seal circle 6 of ring-type is housed between the large end of step hole and the large end of stepped cylindrical, the guidance tape 5 of ring-type is housed between the small end of step hole and the small end of stepped cylindrical, therefore sealing is reliable, steadily mobile.The return spring 4-2 being positioned at driving plunger 7 center is enclosed within outside spring spool 4-2, is arranged on plunger baffle plate 3 by return stud 4-1 pressure holding, forms return mechanism 4.
Parking mounting hole as shown in Figure 3, is equipped with the parking piston 12 of convergence friction pair under parking spring 12 acts on, and forms the parking cylinder 11 of annular between parking mounting hole and parking piston 12 cylindrical.Specifically, parking mounting hole is flat counterbore, parking piston 12 is for having the hollow stepped cylindrical of large end and small end, after loading parking mounting hole to hold greatly the spring of pressure holding parking inwardly 13, by the parking cylinder 11 of the formation ring-type between the back-up ring 14 of jump ring 15 axial limiting in small end cylindrical and parking mounting hole.
After installation, driving cylinder and parking cylinder connect pressure oil respectively by control valve.During driving, control parking cylinder oil-filled, and cylinder of driving a vehicle is in pressure release state, parking plunger will overcome the active force of parking spring under the promotion of high pressure oil, driving cylinder is then under return spring effect, all vertically towards moving away from friction pair direction, make the complete pine oil of friction pair, therefore vehicle is able to freely advance in the clear.Easy understand, this parking pressurization, the reasonably combined of pressure release of driving a vehicle, after making to adopt the present embodiment, driving conditions is not only safe and reliable, and energy-conservation.
During service brake, control parking cylinder oil-filled with driving cylinder simultaneously, the same when parking plunger and driving, all the time release friction pair state is in, and drive a vehicle plunger under high pressure oil effect vertically friction pair direction move, pressing friction sheet and brake disc gradually, thus realize the driving oil cylinder pressurization braking needed for driving conditions.During parking braking, control driving cylinder and the pressure release simultaneously of parking cylinder, the same when parking plunger and driving, all the time release friction pair state is in, parking plunger then moves to friction pair direction under the promotion of parking spring, pressing friction sheet and brake disc gradually, the parking cylinder pressure release braking needed for realization, now complete in pressure oil.
Test proves, the overall multi-disc dry brake of plunger type of the present embodiment is due to row parking integration, and therefore structure is very compact; Driving piston and parking piston is spaced apart vertically, and manipulation is convenient, stablize; Each cylinder and friction pair uniform force, effectively eliminate catching phenomenon; Overall multi-disc friction auxiliary structure thermal capacity is large, and working life obviously extends.
In addition to the implementation, the present invention can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of application claims.
Claims (10)
1. a multi-disc dry brake, comprise the circular tube shaped housing (2) of two ends difference fixed friction sheet baffle plate (1) and plunger baffle plate (3), one end one group of cylindrical spaced apart and housing (2) the endoporus circumference of the contiguous friction plate baffle plate of described housing retrain and axially form the friction plate (9) of sliding pair, the brake disc (10) forming with it friction pair is housed between adjacent friction plate, and the endoporus of described brake disc and pto＝power take-off circumference retrain and axially form sliding pair; It is characterized in that: one end of contiguous plunger baffle plate (3) of described housing has the driving and parking mounting hole that circumference evenly distributes alternately, described driving mounting hole is equipped with the driving piston (7) of convergence plunger baffle plate under elastic component effect, and described plunger baffle plate end face has the depression forming driving cylinder (8); Described parking mounting hole is equipped with the parking piston (12) of convergence friction pair under elastic component effect, forms the parking cylinder (11) of annular between described parking mounting hole and parking outside piston.
2. multi-disc dry brake according to claim 1, is characterized in that: described driving mounting hole is the step hole with large end and small end, and described driving piston is the hollow stepped cylindrical matched with driving mounting hole.
3. multi-disc dry brake according to claim 2, is characterized in that: the circumferential seal circle that ring-type is housed between the large end of described step hole and the large end of stepped cylindrical.
4. multi-disc dry brake according to claim 3, is characterized in that: by the guidance tape of ring-type between the small end of described step hole and the small end of stepped cylindrical.
5. multi-disc dry brake according to claim 4, it is characterized in that: described parking mounting hole is flat counterbore, described parking piston is the hollow stepped cylindrical with large end and small end, with after holding greatly the spring of pressure holding parking inwardly to load parking mounting hole, by the parking cylinder of the formation ring-type between the back-up ring of jump ring axial limiting in small end cylindrical and parking mounting hole.
6. multi-disc dry brake according to claim 5, is characterized in that: described friction plate cylindrical is retrained by external splines and shell inner hole spline circumference and axially formed sliding pair.
7. multi-disc dry brake according to claim 6, is characterized in that: the endoporus of described brake disc is retrained by the axle external splines circumference of internal spline and pto＝power take-off and axially formed sliding pair.
8. multi-disc dry brake according to claim 7, is characterized in that: described driving mounting hole is equipped with the driving piston of convergence plunger baffle plate under return spring effect.
9. multi-disc dry brake according to claim 8, is characterized in that: described parking mounting hole is equipped with the parking piston of convergence friction pair under parking spring action.
10. multi-disc dry brake according to claim 9, is characterized in that: described return spring is positioned at driving plunger center and is enclosed within outside spring spool, is arranged on plunger baffle plate by the pressure holding of return stud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510394518.2A CN104989749B (en) | 2015-07-07 | 2015-07-07 | A kind of multi-disc dry brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510394518.2A CN104989749B (en) | 2015-07-07 | 2015-07-07 | A kind of multi-disc dry brake |
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| Publication Number | Publication Date |
|---|---|
| CN104989749A true CN104989749A (en) | 2015-10-21 |
| CN104989749B CN104989749B (en) | 2017-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510394518.2A Active CN104989749B (en) | 2015-07-07 | 2015-07-07 | A kind of multi-disc dry brake |
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| CN (1) | CN104989749B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104925858A (en) * | 2015-06-09 | 2015-09-23 | 四川大学 | Push-type dynamic continuous preparation method and sintering device for titanium black powder |
| CN106015406A (en) * | 2016-07-11 | 2016-10-12 | 中车戚墅堰机车车辆工艺研究所有限公司 | Transmission and braking integrated device for vehicle |
| CN106015396A (en) * | 2016-07-06 | 2016-10-12 | 中车戚墅堰机车车辆工艺研究所有限公司 | Traveling and parking integrated braking device for automobile |
| CN106884911A (en) * | 2017-04-17 | 2017-06-23 | 湖南世鑫新材料有限公司 | A kind of bullet train complete disc brake with excellent heat dispersion performance |
| CN108547890A (en) * | 2018-05-17 | 2018-09-18 | 中车戚墅堰机车车辆工艺研究所有限公司 | From cooling disc brake apparatus and braking system |
| CN110397689A (en) * | 2019-08-26 | 2019-11-01 | 安徽合力股份有限公司 | A kind of wet brake that friction auxiliary air gap compensates automatically |
| CN110701217A (en) * | 2019-10-11 | 2020-01-17 | 内蒙古第一机械集团股份有限公司 | Separation clearance adjustable moves integrative wet brake that dwells |
| CN113531011A (en) * | 2021-09-17 | 2021-10-22 | 中车戚墅堰机车车辆工艺研究所有限公司 | Parking brake with braking force automatic compensation function |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4750593A (en) * | 1985-06-20 | 1988-06-14 | Akebono Brake Industry Co., Ltd. | Disc brake for service combined with parking operation |
| CN202612440U (en) * | 2012-03-06 | 2012-12-19 | 徐州徐工筑路机械有限公司 | Land leveller parking and traveling integrated brake |
| CN103375515A (en) * | 2012-04-13 | 2013-10-30 | 上海宇意机械有限公司 | Service and parking linked multi-disc wet hydraulic brake |
| CN203335686U (en) * | 2013-07-10 | 2013-12-11 | 常州南车铁马科技实业有限公司 | Wet multiple-disc brake for heavy truck |
| CN203570880U (en) * | 2013-10-11 | 2014-04-30 | 金川集团股份有限公司 | Single-piston multi-disc wet type brake |
| CN104728313A (en) * | 2015-03-31 | 2015-06-24 | 南车戚墅堰机车车辆工艺研究所有限公司 | Braking device for vehicle |
| CN204900607U (en) * | 2015-07-07 | 2015-12-23 | 南车戚墅堰机车车辆工艺研究所有限公司 | Multi -disc dry brake |
-
2015
- 2015-07-07 CN CN201510394518.2A patent/CN104989749B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4750593A (en) * | 1985-06-20 | 1988-06-14 | Akebono Brake Industry Co., Ltd. | Disc brake for service combined with parking operation |
| CN202612440U (en) * | 2012-03-06 | 2012-12-19 | 徐州徐工筑路机械有限公司 | Land leveller parking and traveling integrated brake |
| CN103375515A (en) * | 2012-04-13 | 2013-10-30 | 上海宇意机械有限公司 | Service and parking linked multi-disc wet hydraulic brake |
| CN203335686U (en) * | 2013-07-10 | 2013-12-11 | 常州南车铁马科技实业有限公司 | Wet multiple-disc brake for heavy truck |
| CN203570880U (en) * | 2013-10-11 | 2014-04-30 | 金川集团股份有限公司 | Single-piston multi-disc wet type brake |
| CN104728313A (en) * | 2015-03-31 | 2015-06-24 | 南车戚墅堰机车车辆工艺研究所有限公司 | Braking device for vehicle |
| CN204900607U (en) * | 2015-07-07 | 2015-12-23 | 南车戚墅堰机车车辆工艺研究所有限公司 | Multi -disc dry brake |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104925858A (en) * | 2015-06-09 | 2015-09-23 | 四川大学 | Push-type dynamic continuous preparation method and sintering device for titanium black powder |
| CN106015396A (en) * | 2016-07-06 | 2016-10-12 | 中车戚墅堰机车车辆工艺研究所有限公司 | Traveling and parking integrated braking device for automobile |
| CN106015396B (en) * | 2016-07-06 | 2020-02-04 | 中车戚墅堰机车车辆工艺研究所有限公司 | Vehicle driving and parking integrated brake device |
| CN106015406A (en) * | 2016-07-11 | 2016-10-12 | 中车戚墅堰机车车辆工艺研究所有限公司 | Transmission and braking integrated device for vehicle |
| CN106884911A (en) * | 2017-04-17 | 2017-06-23 | 湖南世鑫新材料有限公司 | A kind of bullet train complete disc brake with excellent heat dispersion performance |
| CN108547890A (en) * | 2018-05-17 | 2018-09-18 | 中车戚墅堰机车车辆工艺研究所有限公司 | From cooling disc brake apparatus and braking system |
| CN110397689A (en) * | 2019-08-26 | 2019-11-01 | 安徽合力股份有限公司 | A kind of wet brake that friction auxiliary air gap compensates automatically |
| CN110701217A (en) * | 2019-10-11 | 2020-01-17 | 内蒙古第一机械集团股份有限公司 | Separation clearance adjustable moves integrative wet brake that dwells |
| CN113531011A (en) * | 2021-09-17 | 2021-10-22 | 中车戚墅堰机车车辆工艺研究所有限公司 | Parking brake with braking force automatic compensation function |
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| Publication number | Publication date |
|---|---|
| CN104989749B (en) | 2017-09-05 |
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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. |
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Address after: 213011 258 Wuyi Road, Qishuyan District, Changzhou, Jiangsu Patentee after: CRRC Qishuyan Locomotive and Rolling Stock Technology Research Institute Co.,Ltd. Address before: 213011 258 Wuyi Road, Qishuyan District, Changzhou, Jiangsu Patentee before: CRRC QISHUYAN INSTITUTE Co.,Ltd. |