CN205239471U - Utilize rail train electricity liquid braking system of vehicle inertia energy supply - Google Patents
Utilize rail train electricity liquid braking system of vehicle inertia energy supply Download PDFInfo
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- CN205239471U CN205239471U CN201521075834.5U CN201521075834U CN205239471U CN 205239471 U CN205239471 U CN 205239471U CN 201521075834 U CN201521075834 U CN 201521075834U CN 205239471 U CN205239471 U CN 205239471U
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- speed switch
- brake
- switch valve
- hydraulic pump
- accumulator
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- 230000005611 electricity Effects 0.000 title abstract 2
- 239000007788 liquid Substances 0.000 title abstract 2
- 230000002457 bidirectional effect Effects 0.000 claims description 16
- 239000012530 fluid Substances 0.000 claims description 16
- 230000008676 import Effects 0.000 abstract description 9
- 230000009347 mechanical transmission Effects 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000004146 energy storage Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 230000001172 regenerating effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses an utilize rail train electricity liquid braking system of vehicle inertia energy supply. Including brake disc, vehicle shaft, mechanical transmission, clutch, two -way hydraulic pump, two overflow valves, two energy storage wares, four high speed switch valves, brake cylinder, control computer, braking clamp and two pressure sensor. During the train braking operating mode, vehicle kinetic energy passes through brake disc, vehicle shaft, mechanical transmission, clutch transmission and to two -way hydraulic pump pivot, drives two -way hydraulic pump work, and four high speed switch valves constitute imports and exports the independently adjust structure, the oily control through four high speed switch valves of pressure, and the pressure value of adjusting two intracavitys of brake cylinder realizes brake force proportional control, applies the brake through the dynamic friction piece. The utility model discloses utilizing two -way hydraulic pump, turning into the hydraulic pressure ability with vehicle inertia kinetic energy, import and export independently adjust through the high speed switch valve to two chamber pressure of brake cylinder, energy recuperation just can be carried out to output and control signal proportional brake force.
Description
Technical field
The utility model relates to track train electro-hydraulic brake system and method, especially relates to a kind of track train electro-hydraulic brake system that utilizes vehicle inertia energy supply.
Technical background
Brakes, as the core component of track train, plays the key effect of safe driving. It is several that the brakes of existing track train is divided into Pneumatic braking system, electro-hydraulic brake system, magnetic rail braking system, regeneration brake system etc. Wherein Pneumatic braking system utilizes compressed air as working media, and therefore train needs to be equipped with air compressor and air accumulator, and equipment occupation space is large, and efficiency is low. Existing electro-hydraulic brake system, utilizes pressure oil as working media, is equipped with motor-driven hydraulic pumps, the hydraulic fluid pressure that enters clamp by electro-hydraulic proportional reducing valve control is exported corresponding brake force, and equipment volume is little, brakes sensitive, but due to restriction loss, efficiency is lower. The auxiliary braking equipment of magnetic rail braking Chang Zuowei regenerative braking, regenerative braking, by motor regenerative electric power, is converted into electric energy by electrically driven (operated) track train braking energy and feeds back to electrical network, and efficiency is higher, but low-speed performance is bad, the brake while conventionally needing to be equipped with electro-hydraulic brake as low speed.
Existing braking method, except regenerative braking, all need train to provide specially energy to brakes, mechanical energy is converted into the pressure versus flow of hydraulic pressure or pneumatic system, drive executing agency's work, along with the raising of society to energy-saving and emission-reduction attention degree, equipment environmental-protecting performance is had higher requirement, energy reclaims, low energy consumption technologies is maked rapid progress, and development trend is inevitable. Vehicle transfers damped condition to by driving cycle, and the kinetic energy itself having is all losses in braking, are converted into thermal energy consumption and dissipate, and this itself is exactly a kind of waste of energy, then provides specially extra energy drives brakes work to brake, and efficiency is lower. If can, in the time of car brakeing, the inertia kinetic energy of itself be used and supplies with brakes and store, the efficiency of system will be improved undoubtedly.
Along with the development of electrohydraulic control technology, utilize the independent regulation technology of import and export of high-speed switch valve to make the combination of systemic-function be tending towards variation, control more flexibly, simultaneously can carry out the recovery of energy, be suitable for very much design and utilize the track train electro-hydraulic brake system of vehicle inertia energy supply.
Utility model content
The purpose of this utility model is to provide a kind of track train electro-hydraulic brake system and method for utilizing vehicle inertia energy supply, utilize train inertia kinetic energy as the work of energy source hydraulic driving system, the independent adjustment structure of import and export forming by high-speed switch valve, brakes is controlled, without extra power, and can reclaim train braking energy.
In order to reach foregoing invention object, the technical solution adopted in the utility model is:
The utility model comprises brake disc, vehicle axles, mechanical driving device, clutch, bidirectional hydraulic pump, two overflow valves, two accumulators, four high-speed switch valves, brake cylinder, control computer, brake clamp and two pressure sensors, bidirectional hydraulic pump passes through clutch, mechanical driving device is connected in vehicle axles, two hydraulic fluid ports of bidirectional hydraulic pump are separately installed with the first accumulator and the second accumulator, the first accumulator and the second accumulator two overflow valves of oppositely installing in parallel, the first accumulator is connected with the A hydraulic fluid port of the second high-speed switch valve and third high speed switch valve respectively, the second accumulator is connected with the A hydraulic fluid port of the first high-speed switch valve and the 4th high-speed switch valve respectively, the B hydraulic fluid port of the first high-speed switch valve and the second high-speed switch valve is connected with the rod chamber of brake cylinder, the B hydraulic fluid port of third high speed switch valve and the 4th high-speed switch valve is connected with the rodless cavity of brake cylinder, the rod chamber of brake cylinder and rodless cavity are separately installed with the first pressure sensor and the second pressure sensor, brake disc is positioned at brake clamp, the movable friction plate of brake clamp is connected with the piston rod of brake cylinder, four high-speed switch valves, clutch and two pressure sensors are connected with control computer respectively.
The utility model is in the time that train enters damped condition, vehicle energy is passed to the rotating shaft of bidirectional hydraulic pump by brake disc, vehicle axles, mechanical driving device, clutch, drive bidirectional hydraulic pump work, four high-speed switch valves form imports and exports independent adjustment structure, pressure oil is by the control of four high-speed switch valves, and the force value in adjustable brake oil cylinder two chambeies, realizes the control of brake force ratio, export corresponding brake force, brake by movable friction plate.
Described four high-speed switch valves form imports and exports independent adjustment structure, and pressure oil is by the control of four high-speed switch valves, and the pressure in adjustable brake cylinder rod chamber and rodless cavity, realizes brake force braking proportion control, exports corresponding brake force.
The beneficial effect the utlity model has is:
Track train electro-hydraulic brake system and the method for utilizing vehicle inertia energy supply of the present utility model, utilize bidirectional hydraulic pump, be hydraulic energy by vehicle inertia kinetic transformation, by high-speed switch valve, brake cylinder two cavity pressures imported and exported to independent adjusting, export brake force proportional to control signal, and can carry out energy recovery, significantly improve efficiency, its compact conformation, system is simple, use, easy to maintenance, has practicality and advance widely.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure: 1, brake disc, 2, vehicle axles, 3, mechanical driving device, 4, clutch, 5, bidirectional hydraulic pump, 6, overflow valve, 7, accumulator, 8, high-speed switch valve, 9, brake cylinder, 10, control computer, 11, brake clamp, 12, pressure sensor, 13, hydraulic connecting, 14, electrical connection.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in Figure 1, the utility model comprises brake disc 1, vehicle axles 2, mechanical driving device 3, clutch 4, bidirectional hydraulic pump 5, two overflow valves 6, two accumulators 7, four high-speed switch valves 8, brake cylinders 9, controls computer 10, brake clamp 11 and two pressure sensors 12.
Bidirectional hydraulic pump 5 is by clutch 4, mechanical driving device 3 is connected in vehicle axles 2, two hydraulic fluid ports of bidirectional hydraulic pump 5 are separately installed with the first accumulator 7 and the second accumulator 7, the first accumulator and the second accumulator two overflow valves 6 of oppositely installing in parallel, prevent system overpressure, the first accumulator 7 is connected with the A hydraulic fluid port of the second high-speed switch valve 8 and third high speed switch valve 8 respectively, the second accumulator 7 is connected with the A hydraulic fluid port of the first high-speed switch valve 8 and the 4th high-speed switch valve 8 respectively, the B hydraulic fluid port of the first high-speed switch valve 8 and the second high-speed switch valve 8 is connected with the rod chamber of brake cylinder 9, the B hydraulic fluid port of third high speed switch valve 8 and the 4th high-speed switch valve 8 is connected with the rodless cavity of brake cylinder 9, the rod chamber of brake cylinder 9 and rodless cavity are separately installed with the first pressure sensor 12 and the second pressure sensor 12, brake disc 1 is positioned at brake clamp 11, the movable friction plate of brake clamp 11 is connected with the piston rod of brake cylinder 9, four high-speed switch valves 8, clutch 4 and two pressure sensors 12 are connected with control computer 10 respectively.
Braking method of the present utility model:
When train enters damped condition, vehicle energy is passed to the rotating shaft of bidirectional hydraulic pump by brake disc, vehicle axles, mechanical driving device, clutch, drive bidirectional hydraulic pump work, four high-speed switch valves form imports and exports independent adjustment structure, pressure oil is by the control of four high-speed switch valves, and the force value in adjustable brake oil cylinder two chambeies, realizes the control of brake force ratio, export corresponding brake force, brake by movable friction plate.
In system, adopt two accumulators 7, can supplement the unequal flow difference causing of brake cylinder 9 piston both sides area on the one hand, the opposing party can carry out the recovery of energy, a part in vehicle energy is converted to hydraulic energy and is stored in accumulator 7, the energy of these storages can be used for launch train power-assisted or brakes.
In system, adopt bidirectional hydraulic pump 5, no matter train forward travel or backward going, all can work, and the independent adjustment structure of import and export forming due to high-speed switch valve 8, greatly expand the function of equipment, reduce the energy loss that valve port throttling causes, improved the energy utilization efficiency of whole system.
In system, adopt described control computer 10 as controller, by described pressure sensor 12, the operational factor of system is fed back to and controls computer 10, export control signal by controlling computer 10, control the action of high-speed switch valve 8, realize the closed-loop control that brake cylinder 9 is moved.
In system, loop is simple, and Hydraulic Elements are few, facilitates integratedly, can be designed to mechanical-electrical-hydraulic integration structure, compact conformation.
The utility model utilizes train inertia kinetic energy as energy source, train to be braked, utilize train inertia kinetic energy as the work of energy source hydraulic driving system, the independent adjustment structure of import and export forming by high-speed switch valve, brakes is controlled, without extra power, and can reclaim train braking energy.
Claims (1)
1. a track train electro-hydraulic brake system that utilizes vehicle inertia energy supply, is characterized in that: comprise brake disc (1), vehicle axles (2), mechanical driving device (3), clutch (4), bidirectional hydraulic pump (5), two overflow valves, two accumulators, four high-speed switch valves, brake cylinder (9), control computer (10), brake clamp (11) and two pressure sensors, bidirectional hydraulic pump (5) is by clutch (4), mechanical driving device (3) is connected in vehicle axles (2), two hydraulic fluid ports of bidirectional hydraulic pump (5) are separately installed with the first accumulator and the second accumulator, the first accumulator and the second accumulator two overflow valves of oppositely installing in parallel, the first accumulator is connected with the A hydraulic fluid port of the second high-speed switch valve and third high speed switch valve respectively, the second accumulator is connected with the A hydraulic fluid port of the first high-speed switch valve and the 4th high-speed switch valve respectively, the B hydraulic fluid port of the first high-speed switch valve and the second high-speed switch valve is connected with the rod chamber of brake cylinder (9), the B hydraulic fluid port of third high speed switch valve and the 4th high-speed switch valve is connected with the rodless cavity of brake cylinder (9), the rod chamber of brake cylinder (9) and rodless cavity are separately installed with the first pressure sensor and the second pressure sensor, brake disc (1) is positioned at brake clamp (11), the movable friction plate of brake clamp (11) is connected with the piston rod of brake cylinder (9), four high-speed switch valves, clutch (4) and two pressure sensors are connected with control computer (10) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521075834.5U CN205239471U (en) | 2015-12-22 | 2015-12-22 | Utilize rail train electricity liquid braking system of vehicle inertia energy supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521075834.5U CN205239471U (en) | 2015-12-22 | 2015-12-22 | Utilize rail train electricity liquid braking system of vehicle inertia energy supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205239471U true CN205239471U (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521075834.5U Expired - Fee Related CN205239471U (en) | 2015-12-22 | 2015-12-22 | Utilize rail train electricity liquid braking system of vehicle inertia energy supply |
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| Country | Link |
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| CN (1) | CN205239471U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105438140A (en) * | 2015-12-22 | 2016-03-30 | 浙江大学 | Rail train electro-hydraulic brake system and method capable of supplying energy through inertia of train |
-
2015
- 2015-12-22 CN CN201521075834.5U patent/CN205239471U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105438140A (en) * | 2015-12-22 | 2016-03-30 | 浙江大学 | Rail train electro-hydraulic brake system and method capable of supplying energy through inertia of train |
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| 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 |
Granted publication date: 20160518 Termination date: 20211222 |
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| CF01 | Termination of patent right due to non-payment of annual fee |