CN201371806Y - Safety protection device for air-over-hydraulic brake system of mineral vehicle - Google Patents
Safety protection device for air-over-hydraulic brake system of mineral vehicle Download PDFInfo
- Publication number
- CN201371806Y CN201371806Y CN200920035210U CN200920035210U CN201371806Y CN 201371806 Y CN201371806 Y CN 201371806Y CN 200920035210 U CN200920035210 U CN 200920035210U CN 200920035210 U CN200920035210 U CN 200920035210U CN 201371806 Y CN201371806 Y CN 201371806Y
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- Prior art keywords
- oil circuit
- brake system
- hydraulic brake
- brake
- mining car
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- Expired - Fee Related
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- 229910052500 inorganic mineral Inorganic materials 0.000 title abstract 6
- 239000011707 mineral Substances 0.000 title abstract 6
- 238000005065 mining Methods 0.000 claims abstract description 39
- 230000000712 assembly Effects 0.000 claims abstract description 13
- 238000000429 assembly Methods 0.000 claims abstract description 13
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000006378 damage Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Braking Arrangements (AREA)
Abstract
The utility model discloses a safety protection device for an air-over-hydraulic brake system of a mineral vehicle. A reversing valve controlled by hand brake is arranged on a back wheel power-booster of an air-over-hydraulic brake system of a mineral vehicle to lead to a main oil circuit of two rear brake assemblies, and the reversing valve can effectively avoid oil return of the main oil circuit, so that the mineral vehicle can safely stop and start in the mining area with bigger slope. Therefore, the problem that the traditional mineral vehicle (air-over-hydraulic brake system) does not safely stop easily in the mining area with bigger slope is effectively solved and potential safety hazards during stopping of the mineral vehicle can be effectively eliminated.
Description
Technical field
The utility model relates to a kind of improvement of mining car pneumatic jack hydraulic brake system; especially a kind of can be at the long-time emergency of great slope (flameout state), the out-of-action braking during standstill safety guard of parking brake in the time of preventing effectively that mining car from stopping in the bigger ramp of the gradient.
Background technology
Because the gradient of highway is bigger than usual mutually for the gradient of coal field; the colliery uses car itself owing to the heavier reason of explosion-proof back deadweight simultaneously; make existing automobile-used parking brake can not satisfy ramp safe and stop, slide car accident takes place, cause unnecessary personnel's injury and equipment damage to enterprise through regular meeting.
When present device is Parking, depends merely on parking brake vehicle is stopped on the ramp for a long time, but because the mining area is heavier relatively with car himself weight after making explosion protection system into, the security needs when common parking brake with car can not satisfy its Parking.When the mining area great slope stops, parking brake pull-up after often generation is stopped, service brake unclamps the accident that the slide car appears in the back.Traditional mining car pneumatic jack hydraulic brake system as shown in Figure 2, mainly by with two front-wheels, 1 corresponding two front brake assemblies 2, with the corresponding front-wheel servo-unit 3 of two front brake assemblies, form with two trailing wheels, 4 corresponding two rear brake assemblies 5, with the corresponding trailing wheel servo-unit 6 of two rear brake assemblies, service brake 7, parking brake 8, when chaufeur is prepared the ramp parking, can utilize manipulation service brake 7 to come control vehicle, and when chaufeur vehicle after the ramp utilizes service brake to stop, can pull-up parking brake 8 prevent that vehicle from car taking place to slip.Behind chaufeur pull-up parking brake, can unclamp service brake, and this moment through regular meeting because vehicle is overweight, the friction lining of depending merely on the vehicle parking brake can not be at the great slope vehicle that comes to a complete stop.As shown in Figure 2, after service brake unclamped, the fluid that is arranged in the brake cylinder of wheel hub can be got back to oil can 12, and brake cylinder resets, and wheel is not in braking mode, and the gradient that vehicle stopped is decided by the deadweight of vehicle and the friction coefficient of parking brake friction lining.And after the friction coefficient of parking brake friction lining reduces, cause the malfunctioning fault of parking brake easily.
Summary of the invention
In order to overcome above-mentioned defective; the utility model provides a kind of safety guard of mining car pneumatic jack hydraulic brake system; the safety guard of this is mining car pneumatic jack hydraulic brake system improves at the brake system of existing mining car pneumatic jack liquid, makes the mining car can emergency and starting on the great slope of mining area.
The utility model for the technical scheme that solves its technical matters and adopt is:
A kind of safety guard of mining car pneumatic jack hydraulic brake system; with mining car working direction is benchmark; total oil circuit that the front-wheel servo-unit of mining car pneumatic jack hydraulic brake system leads to two front brake assemblies is preceding total oil circuit (this is the definition of preceding total oil circuit); total oil circuit that the trailing wheel servo-unit of mining car pneumatic jack hydraulic brake system leads to two rear brake assemblies is the total oil circuit in back (this is the definition of the total oil circuit in back); one of preceding total oil circuit and the total oil circuit in back are provided with valve; the oil return of this valve its place oil circuit capable of blocking is provided with the keying that control mechanism is controlled this valve.
Further technical scheme of the present utility model is:
Described valve is a change-over valve.
Described control mechanism is a parking brake.
With mining car working direction is benchmark, and described valve is located on the total oil circuit in described back.
The beneficial effects of the utility model are: owing to lead to the change-over valve that is provided with on total oil circuit of two rear brake assemblies by parking brake control at the trailing wheel servo-unit of mining car pneumatic jack hydraulic brake system, this change-over valve can be blocked the oil return of this oil circuit, make that mining car can emergency and starting on the great slope of mining area, efficiently solve the problem of traditional mining car (pneumatic jack hydraulic brake system) at the very difficult emergency in the big mining area of the gradient, efficiency is removed the potential safety hazard that mining car stops.
Description of drawings
Fig. 1 is the utility model principle schematic;
Fig. 2 is traditional mining car pneumatic jack hydraulic brake system principle schematic.
Above accompanying drawing is done explanation:
1---front-wheel 2---front brake assembly
3---front-wheel servo-unit 4---trailing wheel
5---rear brake assembly 6---trailing wheel servo-unit
7---service brake 8---parking brake
The total oil circuit in 9---preceding total oil circuits 10---back
11---valve 12---oil can
The specific embodiment
Embodiment: a kind of safety guard of mining car pneumatic jack hydraulic brake system; with mining car working direction is benchmark; total oil circuit that the front-wheel servo-unit 3 of mining car pneumatic jack hydraulic brake system leads to two front brake assemblies 2 is preceding total oil circuit 9 (this is the definition of preceding total oil circuit); total oil circuit that the trailing wheel servo-unit 6 of mining car pneumatic jack hydraulic brake system leads to two rear brake assemblies 5 is the total oil circuit 10 in back (this is the definition of the total oil circuit in back); before the total oil circuit in total oil circuit 9 and back 10 both one of be provided with valve 11; the oil return of this valve its place oil circuit capable of blocking is provided with the keying that control mechanism is controlled this valve.
Described valve is a change-over valve.
Described control mechanism is a parking brake 8.
With mining car working direction is benchmark, and described valve is located on the total oil circuit 10 in described back.
During concrete enforcement, described valve is a change-over valve and by parking brake control, and the trailing wheel servo-unit of being located at mining car pneumatic jack hydraulic brake system leads on total oil circuit of two rear brake assemblies.This routine operating process is as follows:
Chaufeur is prepared the ramp when stopping, can handle service brake and come control vehicle, and when chaufeur vehicle after the ramp utilizes service brake to stop, can prevent that vehicle from the slide car taking place by the pull-up parking brake.When chaufeur is being stepped on service brake pull-up parking brake, parking brake institute bonded assembly line makes traditional friction disk type parking brake work, its bonded assembly line has also driven the change-over valve commutation simultaneously, make that the pressure oil that enters in the two trailing wheel brake cylinders when handling service brake is shut in two trailing wheel brake cylinders, make two trailing wheel brake cylinders and traditional friction disk type parking brake work simultaneously, and keep the state of two trailing wheels braking.And then unclamping service brake, vehicle comes to a complete stop under acting on simultaneously by two trailing wheel brake cylinders and traditional parking brake on than steep gradient.
When chaufeur was prepared uphill starting, when waiting air pressure to reach setting pressure behind the vehicle launch, chaufeur can slam service brake RELEASE PARKINGBRAKE then.After service brake is slammed, two front wheel brake oil cylinders of vehicle work, unclamp parking brake then, change-over valve resets under the effect of spring force, make the trailing wheel servo-unit communicate with the oil circuit of two trailing wheel brake cylinder spares, two trailing wheels continue to keep its braking mode, and this moment, traditional friction disk type parking brake unclamped.Vehicle safety has been finished the transition from the parking brake to the service brake.So promptly guaranteed the parking of vehicle, also guaranteed the safety of vehicle when great slope starts at great slope.
Claims (4)
1, a kind of safety guard of mining car pneumatic jack hydraulic brake system; it is characterized in that: with mining car working direction is benchmark; total oil circuit that the front-wheel servo-unit (3) of mining car pneumatic jack hydraulic brake system leads to two front brake assemblies (2) is preceding total oil circuit (9); total oil circuit that the trailing wheel servo-unit (6) of mining car pneumatic jack hydraulic brake system leads to two rear brake assemblies (5) is the total oil circuit (10) in back; before total oil circuit (9) and back always oil circuit (10) both one of be provided with valve (11); the oil return of this valve its place oil circuit capable of blocking is provided with the keying that control mechanism is controlled this valve.
2, the safety guard of a kind of mining car pneumatic jack hydraulic brake system according to claim 1 is characterized in that: described valve is a change-over valve.
3, the safety guard of a kind of mining car pneumatic jack hydraulic brake system according to claim 1 is characterized in that: described control mechanism is parking brake (8).
4, according to the safety guard of the described a kind of mining car pneumatic jack hydraulic brake system of one of claim 1 to 3, it is characterized in that: with mining car working direction is benchmark, and described valve is located on the total oil circuit (10) in described back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920035210U CN201371806Y (en) | 2009-03-11 | 2009-03-11 | Safety protection device for air-over-hydraulic brake system of mineral vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920035210U CN201371806Y (en) | 2009-03-11 | 2009-03-11 | Safety protection device for air-over-hydraulic brake system of mineral vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201371806Y true CN201371806Y (en) | 2009-12-30 |
Family
ID=41497888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920035210U Expired - Fee Related CN201371806Y (en) | 2009-03-11 | 2009-03-11 | Safety protection device for air-over-hydraulic brake system of mineral vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201371806Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103991445A (en) * | 2014-05-30 | 2014-08-20 | 南车株洲电力机车有限公司 | Automatic oil supplement device |
| CN106672012A (en) * | 2016-12-21 | 2017-05-17 | 李德 | Pedal wheel type hydraulic braking device of mining electric locomotive |
| CN108394396A (en) * | 2018-05-03 | 2018-08-14 | 广西柳工机械股份有限公司 | Loading machine service braking system |
| US11338781B2 (en) | 2012-03-26 | 2022-05-24 | Oshkosh Defense, Llc | Military vehicle |
| CN114555436A (en) * | 2019-10-15 | 2022-05-27 | 株式会社万都 | Electronic parking brake system and control method thereof |
| USD966958S1 (en) | 2011-09-27 | 2022-10-18 | Oshkosh Corporation | Grille element |
-
2009
- 2009-03-11 CN CN200920035210U patent/CN201371806Y/en not_active Expired - Fee Related
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD966958S1 (en) | 2011-09-27 | 2022-10-18 | Oshkosh Corporation | Grille element |
| USD1008127S1 (en) | 2011-09-27 | 2023-12-19 | Oshkosh Corporation | Vehicle fender |
| US11840208B2 (en) * | 2012-03-26 | 2023-12-12 | Oshkosh Defense, Llc | Military vehicle |
| US11866019B2 (en) | 2012-03-26 | 2024-01-09 | Oshkosh Defense, Llc | Military vehicle |
| US12351149B1 (en) | 2012-03-26 | 2025-07-08 | Oshkosh Defense, Llc | Military vehicle |
| US11364882B2 (en) * | 2012-03-26 | 2022-06-21 | Oshkosh Defense, Llc | Military vehicle |
| US20220289152A1 (en) * | 2012-03-26 | 2022-09-15 | Oshkosh Defense, Llc | Military vehicle |
| USD1076745S1 (en) | 2012-03-26 | 2025-05-27 | Oshkosh Corporation | Set of vehicle doors |
| US11535212B2 (en) | 2012-03-26 | 2022-12-27 | Oshkosh Defense, Llc | Military vehicle |
| US11541851B2 (en) * | 2012-03-26 | 2023-01-03 | Oshkosh Defense, Llc | Military vehicle |
| USD1064940S1 (en) | 2012-03-26 | 2025-03-04 | Oshkosh Corporation | Grille element |
| US12036966B2 (en) | 2012-03-26 | 2024-07-16 | Oshkosh Defense, Llc | Military vehicle |
| US11866018B2 (en) | 2012-03-26 | 2024-01-09 | Oshkosh Defense, Llc | Military vehicle |
| US11338781B2 (en) | 2012-03-26 | 2022-05-24 | Oshkosh Defense, Llc | Military vehicle |
| US11878669B2 (en) | 2012-03-26 | 2024-01-23 | Oshkosh Defense, Llc | Military vehicle |
| US12036967B2 (en) | 2012-03-26 | 2024-07-16 | Oshkosh Defense, Llc | Military vehicle |
| US11958457B2 (en) | 2012-03-26 | 2024-04-16 | Oshkosh Defense, Llc | Military vehicle |
| CN103991445A (en) * | 2014-05-30 | 2014-08-20 | 南车株洲电力机车有限公司 | Automatic oil supplement device |
| CN106672012A (en) * | 2016-12-21 | 2017-05-17 | 李德 | Pedal wheel type hydraulic braking device of mining electric locomotive |
| CN108394396A (en) * | 2018-05-03 | 2018-08-14 | 广西柳工机械股份有限公司 | Loading machine service braking system |
| US12036969B2 (en) | 2019-10-15 | 2024-07-16 | Hl Mando Corporation | Electric parking brake system and control method therefor |
| CN114555436B (en) * | 2019-10-15 | 2024-02-23 | 汉拿万都株式会社 | Electronic parking brake system and control method thereof |
| CN114555436A (en) * | 2019-10-15 | 2022-05-27 | 株式会社万都 | Electronic parking brake system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215321, Jiangsu, Kunshan, Zhang Pu town approach Patentee after: Kunshan Jin Huabao vehicle manufacturing Limited by Share Ltd Address before: 215321, Jiangsu, Kunshan, Zhang Pu town approach Patentee before: Kunshan Jinhua Paus Rubber Tire Vehicle Manufacturing Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20180311 |
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| CF01 | Termination of patent right due to non-payment of annual fee |