CN104989749B - A kind of multi-disc dry brake - Google Patents
A kind of multi-disc dry brake Download PDFInfo
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- CN104989749B CN104989749B CN201510394518.2A CN201510394518A CN104989749B CN 104989749 B CN104989749 B CN 104989749B CN 201510394518 A CN201510394518 A CN 201510394518A CN 104989749 B CN104989749 B CN 104989749B
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- disc
- friction
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- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 claims description 13
- 239000003921 oil Substances 0.000 description 8
- 238000003825 pressing Methods 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 4
- 239000010727 cylinder oil Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000010665 pine oil Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 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
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The present invention relates to a kind of multi-disc dry brake, belong to technical field of vehicle.The brake includes circular tube shaped housing, housing is spaced apart one group of cylindrical friction plate for circumferentially constraining and axially constituting prismatic pair with shell inner hole adjacent to one end of friction plate baffle plate, equipped with the brake disc for forming friction pair therewith between adjacent friction plate, the endoporus of brake disc circumferentially constrains with power output shaft and axially constitutes prismatic pair.Shell one end has the circumferential driving uniformly distributed alternately and parking mounting hole, and driving mounting hole is equipped with driving piston, plunger baffle plate end face formation driving cylinder.Parking mounting hole is equipped with parking piston, and the parking cylinder of annular is formed between parking mounting hole and parking outside piston.The row parking integrated design of present aspect, compact conformation；Plunger case, friction pair uniform force and it is difficult clamping stagnation；Overall multi-disc friction auxiliary structure, thermal capacity is big, and service life is long.
Description
Technical field
The present invention relates to a kind of brake apparatus, especially a kind of multi-disc dry brake belongs to technical field of vehicle.
Background technology
According to the applicant understood, braked more using spot-type disc brake or overall multi-sheet wet-type on orthodox car and engineering truck
Device.Spot-type disc brake is due to cheap, and braking ability is relatively stable, therefore occupies most of market, but such braking
Device is on the premise of power source is constant, and the lifting of stopping power can only be realized by increasing braking radius, and the increase of size is given
The distribution of vehicle chassis installing space brings difficulty, and the friction area of spot-type disc brake friction pair is relatively small, friction
Pad wear is very fast, and the replacement cycle is short, as a result adds maintenance and use cost.Overall multi-sheet wet-type brake service life is long,
Strong to environmental suitability, its multiple-piece construction easily realizes seriation, relatively low to requirements of installation space, but such brake structural
Complexity, piston shaft, footpath are smaller, cause easy piston catching phenomenon, and to the parts machining precision with matching relationship
It is required that higher, manufacturing cost is high, and friction pair uses forced oil cooling in addition, adds extra supporting hydraulic system and cost, often
Only required in the non-maintaining property to brake on higher high-end engineering truck.
In addition, in the various brake systems that vehicle automobile and engineering truck are used now, running brake and parking system
Dynamic device is separated arrangement, it is therefore desirable to respective independently installed space, and the annex such as corresponding pipeline arrangement also therefore and
More complicated, as a result when the compact vehicle of design structure, directly using for reference above-mentioned prior art necessarily causes point of design space
With very difficult or even can not realize.
The content of the invention
It is an object of the invention to：In view of the above-mentioned problems of the prior art, being improved by structure, a kind of protecting is proposed
Under the premise of card basic function, the extremely compact multi-disc dry brake of structure, so as to meet the supporting of the narrow and small vehicle in design space
Design requirement.
In order to reach object above, the basic technical scheme of multi-disc dry brake of the invention is：Including two ends difference
The circular tube shaped housing of fixed friction piece baffle plate and plunger baffle plate, the housing is spaced apart one group adjacent to one end of friction plate baffle plate
Rubbed between the cylindrical friction plate for being constrained with shell inner hole circumference and axially constituting prismatic pair, adjacent friction plate equipped with formation therewith
Secondary brake disc, the endoporus of the brake disc circumferentially constrains with power output shaft and axially constitutes prismatic pair；The housing is neighbouring
One end of plunger baffle plate has the circumferential driving uniformly distributed alternately and parking mounting hole, and the driving mounting hole is equipped with elasticity
The driving piston of the lower convergence plunger baffle plate of part effect, the plunger baffle plate end face has the depression for forming driving cylinder；The parking
Mounting hole is equipped with the parking piston of the convergence friction pair under elastic component effect, between the parking mounting hole and parking outside piston
Form the parking cylinder of annular.
During driving, control it is oil-filled to parking cylinder, driving cylinder be in pressure release state, parking plunger is by under the promotion of hydraulic oil
Axially towards away from friction auxiliary direction movement, elastic acting force being overcome, making friction pair pine oil, vehicle is able in the clear freely
Advance.During service brake, while controlling parking cylinder and driving cylinder oil-filled, parking plunger is in state as described above, release friction
It is secondary.Driving plunger is moved under hydraulic oil effect along axial rub auxiliary direction, gradually pressing friction piece and brake disc, so as to realize
Braking during driving.During parking braking, control driving cylinder and the pressure release, promotion of the parking plunger in parking elastic component simultaneously of parking cylinder
Lower to be moved to friction auxiliary direction, gradually pressing friction piece and brake disc, realize parking braking.
As can be seen here, the various brakings needed for being realized completely using the present invention are manipulated, and the automobile-used overall multi-disc
Brake has following remarkable advantage：
1) because parking cylinder and driving cylinder are organically combined, same circumference is distributed in, single oil cylinder is not only solved
Easy clamping stagnation problem, and make row, EPB integration, without individually arrangement EPB, therefore compact conformation, save
Vehicle frame space, topology layout to vehicle brings great convenience；
2) friction pair of complete-disc structure takes full advantage of usable floor area, realize realized in less installing space compared with
Big braking torque, and service life is long, saves maintenance cost；
3) parking cylinder and driving cylinder are simultaneously oil-filled during service brake, and parking plunger release friction pair, driving plunger are compressed and rubbed
Wipe secondary, driven a vehicle during parking braking cylinder and the pressure release simultaneously of parking cylinder, parking plunger pressing friction pair, driving under elastic reset effect
Plunger then discharges friction pair under elastic reset effect；So as to be braked with driving a vehicle by hydraulic braking, parking by elastic reset
Realize control mode the most rational.
Brief description of the drawings
The present invention is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is Fig. 1 left view.
Fig. 3 is Fig. 2 XB-XB sectional views.
Fig. 4 is Fig. 3 XC-XC sectional views.
Embodiment
Embodiment one
The present embodiment be a kind of overall multi-disc dry brake of plunger type, its structure as shown in Figure 1,2,3, 4, circular tube shaped
The two ends of housing 2 difference fixed friction piece baffle plate 1 and plunger baffle plate 3.
Housing adjacent to one end of friction plate baffle plate 1 be spaced apart one group it is cylindrical by external splines 9-1 and the endoporus spline of housing 2
Equipped with the brake disc 10 for forming friction pair therewith between circumferential constraint and the friction plate 9 for axially constituting prismatic pair, adjacent friction plate,
The endoporus of brake disc 10 is circumferentially constrained by the axle external splines of internal spline 10-1 and power output shaft and axially constitutes prismatic pair.
Housing has the circumferential driving uniformly distributed alternately and parking mounting hole adjacent to one end of plunger baffle plate 3.Driving peace
Hole is filled as shown in figure 1, the driving piston 7 equipped with the convergence plunger baffle plate 3 under return spring 4-3 effects, the end face of plunger baffle plate 3
With the depression for forming driving cylinder 8.Specifically, driving mounting hole is the stepped hole with big end and small end, and driving piston 7 is
The hollow stepped cylindrical matched with driving mounting hole, is equipped with the circumference of ring-type between the big end of stepped hole and the big end of stepped cylindrical
Sealing ring 6, is equipped with the guidance tape 5 of ring-type, therefore sealed reliable between the small end of stepped hole and the small end of stepped cylindrical, mobile flat
Surely.Return spring 4-2 positioned at driving plunger 7 center is enclosed on outside spring spool 4-2, is installed by return stud 4-1 pressure holdings
On plunger baffle plate 3, return mechanism 4 is constituted.
Parking mounting hole is as shown in figure 3, the parking piston 12 equipped with the convergence friction pair under the effect of parking spring 12, parking
The parking cylinder 11 of annular is formed between mounting hole and parking piston 12 are cylindrical.Specifically, parking mounting hole is flat counterbore, is stayed
Car piston 12 is the hollow stepped cylindrical with big end and small end, holds the spring of pressure holding parking inwardly 13 to load parking mounting hole with big
Afterwards, the cylindrical parking cylinder 11 with parking mounting hole by the formation ring-type between the back-up ring 14 of the axial limiting of jump ring 15 of small end.
After installation, driving cylinder and parking cylinder connect pressure oil by control valve respectively.During driving, control parking cylinder is oil-filled, and
Cylinder of driving a vehicle is in pressure release state, and parking plunger will overcome the active force of parking spring under the promotion of hydraulic oil, and driving cylinder then exists
Under return spring effect, axially towards away from friction auxiliary direction movement, make the complete pine oil of friction pair, thus vehicle be able to not by
Ground is hindered freely to advance.It is readily appreciated that, this parking pressurization, the reasonably combined of pressure release of driving a vehicle so that use after the present embodiment, OK
Car process is not only safe and reliable, and energy-conservation.
During service brake, while control parking cylinder and driving cylinder oil-filled, when parking plunger is with driving a vehicle as, all the time in releasing
Put friction pair state, and plunger of driving a vehicle is moved under hydraulic oil effect along axial rub auxiliary direction, gradually pressing friction piece and system
Moving plate, so that the driving oil cylinder pressurization braking needed for realizing driving conditions.During parking braking, control driving cylinder and parking cylinder are simultaneously
Pressure release, parking plunger with driving when as, all the time in release friction pair state, parking plunger is then under the promotion of parking spring
To friction auxiliary direction movement, gradually pressing friction piece and brake disc, the parking cylinder pressure release braking needed for realizing, now completely need not
Pressure oil.
Experiment proves, the overall multi-disc dry brake of plunger type of the present embodiment is due to row parking integration, therefore structure
It is extremely compact；Driving piston and the axially spaced distribution of parking piston, manipulation is conveniently, stably；Each cylinder and friction pair uniform force,
Effectively eliminate catching phenomenon；Overall multi-disc friction auxiliary structure thermal capacity is big, and service life is obviously prolonged.
In addition to the implementation, the present invention can also have other embodiment.All use equivalent substitution or equivalent transformation shape
Into technical scheme, all fall within the protection domain of application claims.
Claims (10)
1. a kind of multi-disc dry brake, including two ends difference fixed friction piece baffle plate（1）With plunger baffle plate（3）Circular tube shaped shell
Body（2）, the housing is spaced apart one group of cylindrical and housing adjacent to one end of friction plate baffle plate（2）Endoporus is circumferentially constrained and axial direction
Constitute the friction plate of prismatic pair（9）, equipped with the brake disc for forming friction pair therewith between adjacent friction plate（10）, the brake disc
Endoporus and power output shaft circumferentially constraint and axially constitute prismatic pair；It is characterized in that：The housing is adjacent to plunger baffle plate（3）
One end there is the circumferential driving uniformly distributed alternately and parking mounting hole, the driving mounting hole is equipped with elastic component effect
The driving piston of convergence plunger baffle plate（7）, the plunger baffle plate end face, which has, forms driving cylinder（8）Depression；The parking peace
Fill the parking piston that hole is equipped with the convergence friction pair under elastic component effect（12）, the parking mounting hole and parking outside piston it
Between formed annular parking cylinder（11）.
2. multi-disc dry brake according to claim 1, it is characterised in that：The driving mounting hole be with big end and
The stepped hole of small end, the driving piston is the hollow stepped cylindrical matched with driving mounting hole.
3. multi-disc dry brake according to claim 2, it is characterised in that：The big end of the stepped hole and stepped cylindrical
Big end between be equipped with ring-type circumferential seal circle.
4. multi-disc dry brake according to claim 3, it is characterised in that：The small end and stepped cylindrical of the stepped hole
Small end between pass through the guidance tape of ring-type.
5. multi-disc dry brake according to claim 4, it is characterised in that：The parking mounting hole is flat counterbore,
The parking piston is the hollow stepped cylindrical with big end and small end, is holding the spring of pressure holding parking inwardly to load parking peace with big
Fill behind hole, the cylindrical parking cylinder with parking mounting hole by the formation ring-type between the back-up ring of jump ring axial limiting of small end.
6. multi-disc dry brake according to claim 5, it is characterised in that：The friction plate it is cylindrical by external splines with
Shell inner hole spline circumferentially constrains and axially constitutes prismatic pair.
7. multi-disc dry brake according to claim 6, it is characterised in that：The endoporus of the brake disc passes through internal spline
Circumferentially constrained with the axle external splines of power output shaft and axially constitute prismatic pair.
8. multi-disc dry brake according to claim 7, it is characterised in that：The driving mounting hole is equipped with return bullet
The driving piston of the lower convergence plunger baffle plate of spring effect.
9. multi-disc dry brake according to claim 8, it is characterised in that：The parking mounting hole is equipped with parking bullet
The parking piston of the lower convergence friction pair of spring effect.
10. multi-disc dry brake according to claim 9, it is characterised in that：The return spring is located at driving plunger
Center and it is enclosed on outside spring spool, is arranged on by the pressure holding of return stud on plunger baffle plate.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104989749A CN104989749A (en) | 2015-10-21 |
| CN104989749B true CN104989749B (en) | 2017-09-05 |
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| 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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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104925858B (en) * | 2015-06-09 | 2017-03-22 | 四川大学 | Push-type dynamic continuous preparation method and sintering device for titanium black powder |
| 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 |
| CN106015406B (en) * | 2016-07-11 | 2018-02-16 | 中车戚墅堰机车车辆工艺研究所有限公司 | Automobile-used transmission braking integration arrangement |
| 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 |
| CN108547890B (en) * | 2018-05-17 | 2019-11-22 | 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 |
| CN110701217B (en) * | 2019-10-11 | 2021-04-23 | 内蒙古第一机械集团股份有限公司 | Separation clearance adjustable moves integrative wet brake that dwells |
| CN113531011B (en) * | 2021-09-17 | 2021-12-07 | 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 |
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| CN104989749A (en) | 2015-10-21 |
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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. |