CN203570880U - Single-piston multi-disc wet type brake - Google Patents
Single-piston multi-disc wet type brake Download PDFInfo
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- CN203570880U CN203570880U CN201320625887.4U CN201320625887U CN203570880U CN 203570880 U CN203570880 U CN 203570880U CN 201320625887 U CN201320625887 U CN 201320625887U CN 203570880 U CN203570880 U CN 203570880U
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Abstract
The utility model relates to a single-piston multi-disc wet type brake. A first brake shell, a second brake shell and a third brake shell are connected together through a bolt to define a closed structure with a cavity, a piston is arranged in the cavity, and divides the cavity into a left cavity and a right cavity, a friction plate and a friction polished plate are arranged in the left cavity, a hub is connected with the friction plate through a spline, the friction polished plate is connected with the third brake shell through a spline, a piston sink hole is formed in the right cavity, a spring is arranged in the sink hole, a hydraulic oil opening A is communicated with the left cavity, and a hydraulic oil opening B is communicated with the right cavity. The single-piston multi-disc wet type brake solves the problems existing in existing hoof type, clamp disc type and multi-disc wet brakes, and the single-piston multi-disc wet type brake is of a full-close structure, has the parking brake and running brake functions, is particularly suitable for engineering vehicles and solves the problem that under the working condition of the severe working environment, brakes of the working engineering vehicles fail.
Description
Technical field
The utility model relates to wet multi-disc brake, the multiple disc wet out of pressure parking braking, the hydraulic driving break that particularly on a kind of engineering vehicle, use.
Background technique
The wheel end break using on the large-duty loader such as engineering vehicle, mine vehicle and heavy-load automobile is generally divided into shoe type, caliper disc, multi-disc wet type three classes, for service brake.Also be provided with separately in addition a disk type braker, be used for parking braking.Need an air pressure or hydraulic system to carry out brake activation action, once the faults such as explosion appear in pipeline, just cannot realize braking, to vehicle safe driving, bring threat.Parking Brake is subject to the pollution of place mud, easily loses efficacy, and this is very dangerous to large-duty loader and heavy-load automobile.
Model utility content
The purpose of this utility model is to provide a kind of multi-disk wet brake of novel sealing, and the function of parking braking and service brake is joined together, and is arranged in the break of sealing, is not subject to the pollution of place mud, guarantees reliability and the validity of break.For large-duty loader and heavy-load automobile provide effective braking.
For reaching above-mentioned technique effect, the utility model adopts following technological scheme: the arrester shell I of described break, II, III are bolted together, surround a seal structure with cavity, piston is arranged in described cavity, cavity is divided into He You chamber, left chamber, in left chamber, be provided with friction plate and friction mating plate, wheel hub and friction plate are by spline joint, and friction mating plate and arrester shell III are passed through spline joint; Right chamber inner carrier counterbore, spring is arranged in counterbore, and hydraulic oil port A is communicated with left chamber, and hydraulic oil port B is communicated with right chamber.
Preferably, described friction plate and friction mating plate at least arrange three groups in interval.
Preferably, between described piston and described arrester shell I and described arrester shell II, by O RunddichtringO, seal.
Preferably, the area in described right chamber is greater than the area in left chamber.
The beneficial effects of the utility model:
Wet multi-disc brake of the present utility model has solved the problem of existing shoe type, caliper disc, multi-disk wet brake existence, adopt the structure of a large piston, on piston, process a coil spring hole, after break is installed, spring is just compressed, produce elastic force, by large piston action in friction plate group, to vehicle, provide parking braking, when hydraulic system is applied to A mouth by pressure oil, the pressure that left chamber produces is spring-compressed, the rotating plate of friction plate and not being stressed by moving plate, remove parking braking (hand braking), vehicle is normally walked; When the middle needs of advancing are braked, hydraulic system is applied to B mouth by pressure oil, in right chamber, form the pressure contrary with left chamber, and the pressure in right chamber is greater than the pressure in left chamber, piston is subject to spring force to add the poor of upper right chamber and left cavity pressure, be applied in friction plate group, produce friction torque, complete service brake.This automobile-used single piston wet multi-disc brake is a kind of full-closed structure, has the function of parking braking and service brake, and it is particularly suitable for engineering vehicle, has solved the problem of the misfunctioning of brake of the engineering vehicle of working under the severe operating mode of operating environment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1, axle tube; 2, break connecting bolt; 3, by arrester shell I; 4, O RunddichtringO; 5, piston; 6, O RunddichtringO; 7, spring; 8, by arrester shell II; 9, O RunddichtringO; 10, friction mating plate; 11, friction plate; 12, by arrester shell III; 13, wheel hub.
Embodiment
As shown in Figure 1, break connecting bolt 2 links together arrester shell I, II, III (3,8,12), be welded on described axle tube 1, arrester shell I, II, III (3,8,12) surround a seal structure with cavity, piston 5 is arranged in described cavity, cavity is divided into He You chamber, left chamber, is provided with friction plate 11 and friction mating plate 10 in left chamber, friction plate 11 and friction mating plate 10 are at least provided with three groups in interval; Right chamber inner carrier counterbore, spring is arranged in counterbore, and hydraulic oil port A is communicated with left chamber, and hydraulic oil port B is communicated with right chamber.
Wheel hub 13 use bearings and nut are fixed on described axle tube 1, axle tube 1 is fixed on driving axle housing or vehicle frame, wheel hub 13 is connected with bolt with wheel rim and tire, during vehicle to run, tire rotates together with wheel hub 13, wheel hub 13 is with friction plate 11 by spline joint, and friction mating plate 10 passes through spline joint with arrester shell III 12; Spring 7 is arranged in the counterbore on described piston 5 right sides, and after friction mating plate 10 is pushed down by piston 5, friction plate 11 and described friction mating plate 10 produce friction torque, and wheel is braked.Sealing between piston 5 and arrester shell I 3 and described arrester shell II 8 is to complete by described O RunddichtringO (4,6,9).
Vehicle, when pausing, needs parking braking (being commonly called as hand braking) to prevent that vehicle is from line slip, and the pressure that spring 7 produces pushes down friction plate group friction plate 11 by piston 5 and friction mating plate 10 produces friction torque, prevents wheel movement.
When vehicle need to be walked, by hydraulic control system, high pressure oil is provided to described hydraulic fluid port A, make left chamber produce pressure, promote described spring 7 and move right, remove the pressure in friction plate group, wheel can rotate, and vehicle starts walking; When vehicle need to be braked, by hydraulic control system, high pressure oil is provided to described hydraulic fluid port B, make right chamber also produce pressure, during design, the area in given right chamber is greater than the area in left chamber, piston is subject to the pressure of chamber, left and right differential pressure and spring, the friction torque that is greater than parking braking is provided to friction plate group, wheel is braked, complete the walking braking to vehicle; Remove the pressure of described hydraulic fluid port B, keep the pressure of described hydraulic fluid port A, can make vehicle walk on.
When after vehicle operating, need to pause temporarily, by hydraulic control system, the pressure oil of hydraulic fluid port A and hydraulic fluid port B to be removed, the pressure that described spring 7 produces is pushed down friction plate group by described piston 5 and is produced friction torque, prevents wheel movement, completes parking task.
Above-described is only preferred embodiment of the present utility model.Should be understood that for the person of ordinary skill of the art, under technology enlightenment provided by the utility model, as the common practise of related domain, can also make other equivalent modifications and improvement, also should be considered as protection domain of the present utility model.
Claims (4)
1. a single piston multi-disk wet brake, it is characterized in that: the arrester shell I of described break, II, III are bolted together, surround a seal structure with cavity, piston is arranged in described cavity, cavity is divided into He You chamber, left chamber, in left chamber, be provided with friction plate and friction mating plate, wheel hub and friction plate are by spline joint, and friction mating plate and arrester shell III are passed through spline joint; Right chamber inner carrier counterbore, spring is arranged in counterbore, and hydraulic oil port A is communicated with left chamber, and hydraulic oil port B is communicated with right chamber.
2. a kind of single piston multi-disk wet brake according to claim 1, is characterized in that: described friction plate and friction mating plate at least arrange three groups in interval.
3. a kind of single piston multi-disk wet brake according to claim 1, is characterized in that: between described piston and described arrester shell I and described arrester shell II by the sealing of O RunddichtringO.
4. a kind of single piston multi-disk wet brake according to claim 1, is characterized in that: the area in described right chamber is greater than the area in left chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320625887.4U CN203570880U (en) | 2013-10-11 | 2013-10-11 | Single-piston multi-disc wet type brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320625887.4U CN203570880U (en) | 2013-10-11 | 2013-10-11 | Single-piston multi-disc wet type brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203570880U true CN203570880U (en) | 2014-04-30 |
Family
ID=50538612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320625887.4U Expired - Fee Related CN203570880U (en) | 2013-10-11 | 2013-10-11 | Single-piston multi-disc wet type brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203570880U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989749A (en) * | 2015-07-07 | 2015-10-21 | 南车戚墅堰机车车辆工艺研究所有限公司 | Multi-plate dry brake |
| CN105650147A (en) * | 2015-02-04 | 2016-06-08 | 湖北康晨安宝矿业设备有限责任公司 | Hydraulic brake device |
| CN108716523A (en) * | 2018-06-29 | 2018-10-30 | 中车工业研究院有限公司 | A kind of endless-track vehicle power assembly |
| CN110030300A (en) * | 2019-05-18 | 2019-07-19 | 上海智御动力技术有限公司 | Hub motor built-in braking system |
-
2013
- 2013-10-11 CN CN201320625887.4U patent/CN203570880U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650147A (en) * | 2015-02-04 | 2016-06-08 | 湖北康晨安宝矿业设备有限责任公司 | Hydraulic brake device |
| CN104989749A (en) * | 2015-07-07 | 2015-10-21 | 南车戚墅堰机车车辆工艺研究所有限公司 | Multi-plate dry brake |
| CN104989749B (en) * | 2015-07-07 | 2017-09-05 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of multi-disc dry brake |
| CN108716523A (en) * | 2018-06-29 | 2018-10-30 | 中车工业研究院有限公司 | A kind of endless-track vehicle power assembly |
| CN110030300A (en) * | 2019-05-18 | 2019-07-19 | 上海智御动力技术有限公司 | Hub motor built-in braking system |
| CN110030300B (en) * | 2019-05-18 | 2024-06-28 | 阿克曼矩阵技术(上海)有限公司 | Built-in braking system for hub motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20191011 |