CN203419125U - Air compressor baking system for road-rail vehicle - Google Patents
Air compressor baking system for road-rail vehicle Download PDFInfo
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- CN203419125U CN203419125U CN201320350376.6U CN201320350376U CN203419125U CN 203419125 U CN203419125 U CN 203419125U CN 201320350376 U CN201320350376 U CN 201320350376U CN 203419125 U CN203419125 U CN 203419125U
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- air compressor
- valve
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- hydraulic motor
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Abstract
The utility model discloses an air compressor baking system for a road-rail vehicle. The air compressor baking system comprises a hydraulic drive unit and an air compression unit. The hydraulic drive unit comprises at least one hydraulic pump, a first valve, a second valve, a first hydraulic motor and a second hydraulic motor; the air compression unit comprises a first air compressor, a second air compressor and at least one main air reservoir. According to the air compressor baking system for the road-rail vehicle, the two air compressors and the driving hydraulic motors of the two air compressors are arranged, so pressurizing time is shortened, and the braking demand of the road-rail vehicle is effectively met.
Description
Technical field
The utility model belongs to rail-road car braking technology field, relates in particular to a kind of public iron vehicle air compressor brake system.
Background technology
Rail-road car is called again public iron car, public iron car has that power is little, weight is little, relative tractive force large, the economic wet goods advantage of economizing, and current public iron car has been widely used in the passenger vehicle of railway factory, mine, harbour, smelter, the towage of lorry.
But, because public iron car own wt is smaller, when heavy traction due to the weight of tractive load weight much larger than tractor truck, thereby when train braking, public iron car cannot provide enough braking forces.In order to address this problem, to draw now on the public iron car that tonnage is greater than 1200 tons and all installed railway brake system additional.Railway brake system is that then the train braking system of locomotive is installed on public iron car through simplifying, by handling train braking system, just can implement train braking to the vehicle of public iron car traction like this, guaranteed that permutation car has enough braking forces, and then guaranteed traffic safety.
Because space and the power of public iron car is all far smaller than locomotive, therefore on public iron car, have no idea to install additional power enough large air compressor be called again Air compressor, yet, train braking system requires to have very great Chu air quantity to meet the demand of braking, if for storage reservoir provides pressurized air just can need long time, can not effectively meet the braking requirement of public iron car with traditional single Air compressor.
Summary of the invention
The purpose of this utility model is to provide a kind of public iron vehicle air compressor brake system, to solve the defect existing in above-mentioned prior art.
In order to complete the utility model object, the utility model provides a kind of public iron vehicle air compressor brake system, comprise hydraulic drive unit and air compressing unit, described hydraulic drive unit comprises at least one Hydraulic Pump, the first valve, the second valve, the first HM Hydraulic Motor, the second HM Hydraulic Motor, described Hydraulic Pump communicates with the oil inlet of described the first HM Hydraulic Motor by the first pipeline, the oil outlet of described the first HM Hydraulic Motor communicates with fuel tank by the 6th pipeline, described the first pipeline communicates with described the 6th pipeline by being provided with the second pipeline of the first valve, described the first pipeline communicates with the oil inlet of described the second HM Hydraulic Motor by being provided with the 4th pipeline of the second valve, the oil outlet of described the second HM Hydraulic Motor is by the 5th pipeline and described the second pipeline, described the 6th pipeline communicates, described air compressing unit comprises the first air compressor, the second air compressor, at least one total reservoir, described the first HM Hydraulic Motor drives described the first air compressor, described the second HM Hydraulic Motor drives described the second air compressor, and described the first air compressor, described the second air compressor communicate with total reservoir.
Wherein, described the first valve and described the second valve are electromagnetic valve.
Wherein, also comprise automatic control unit, described automatic control unit comprises signal acquisition module, signal processing module, signal transmitting module, described signal acquisition module is connected with described signal processing module, for gathering the rotating speed of diesel engine, the air pressure of total reservoir, described signal processing module and described signal acquisition module, signal transmitting module is connected, be used for judging described diesel engine speed, whether total reservoir air pressure reaches pre-set threshold value, described signal transmitting module and described signal processing module, the first valve, the second valve is connected, for opening and closing according to output control first valve of described signal processing module judgement and the second valve.
Wherein, described the first pipeline also communicates by being provided with the 3rd pipeline of by pass valve with described fuel tank.
Wherein, described the first pipeline and described the 4th pipeline are respectively equipped with flow regulating valve.
Wherein, described air compressing unit also comprises the first air treatment module, the second air treatment module, the first boiler check valve, the second boiler check valve, described first air treatment module one end is connected with described the first air compressor, the other end is connected with the first boiler check valve, and described the first boiler check valve is connected with described total reservoir; Described second air treatment module one end is connected with described the second air compressor, and the other end is connected with the second boiler check valve, and described the second boiler check valve is connected with described total reservoir.
The beneficial effects of the utility model are that a kind of public iron vehicle air compressor brake system that the utility model provides, by two Air compressors being set and driving HM Hydraulic Motor to shorten the pressurising time to reach, effectively meets the braking requirement of public iron car.
Accompanying drawing explanation
Fig. 1 is the utility model hydraulic drive unit schematic diagram;
Fig. 2 is the utility model air compressing cell schematics;
Fig. 3 is the utility model automatic control unit schematic diagram.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As accompanying drawing 1, accompanying drawing 2, shown in accompanying drawing 3, the utility model provides a kind of public iron vehicle air compressor brake system, comprise hydraulic drive unit and air compressing unit, described hydraulic drive unit comprises at least one Hydraulic Pump, the first valve, the second valve, the first HM Hydraulic Motor, the second HM Hydraulic Motor, described Hydraulic Pump communicates with the oil inlet of described the first HM Hydraulic Motor by the first pipeline, the oil outlet of described the first HM Hydraulic Motor communicates with fuel tank by the 6th pipeline, described the first pipeline communicates with described the 6th pipeline by being provided with the second pipeline of the first valve, described the first pipeline communicates with the oil inlet of described the second HM Hydraulic Motor by being provided with the 4th pipeline of the second valve, the oil outlet of described the second HM Hydraulic Motor is by the 5th pipeline and described the second pipeline, described the 6th pipeline communicates, described air compressing unit comprises the first air compressor, the second air compressor, at least one total reservoir, described the first HM Hydraulic Motor drives described the first air compressor, described the second HM Hydraulic Motor drives described the second air compressor, and described the first air compressor, described the second air compressor communicate with total reservoir.
It should be noted that, under untapped state, the second valve closing now, the first valve is communicated with, thereby hydraulic oil through the first pipeline, the second pipeline, and the 6th pipeline directly flows back to fuel tank, the first Air compressor and the second Air compressor are not all worked; Diesel-engined drive change speed gear box, Hydraulic Pump is directly installed on the PTO mouth of change speed gear box, between Hydraulic Pump and HM Hydraulic Motor, by hydraulic tubing, connects; HM Hydraulic Motor is connected with air compressor by transmission shaft, drives air compressor work.
In the utility model, described the first valve and described the second valve can be electromagnetic valve, control closure and the disconnection of electromagnetic valve by automatic control unit.Automatic control unit, described automatic control unit comprises signal acquisition module, signal processing module, signal transmitting module, described signal acquisition module is connected with described signal processing module, for gathering the rotating speed of diesel engine, the air pressure of total reservoir, described signal processing module and described signal acquisition module, signal transmitting module is connected, be used for judging described diesel engine speed, whether total reservoir air pressure reaches pre-set threshold value, described signal transmitting module and described signal processing module, the first valve, the second valve is connected, for opening and closing according to output control first valve of described signal processing module judgement and the second valve.
It should be noted that, the utility model is by regulating total reservoir air pressure, diesel engine speed, valve opening, control the operation of brake system, can automatically adjust and keep the stable of rotational speed of air compressor according to diesel engine speed, greatly improve again the air compressing time that the efficiency of Hydraulic Pump and the degree of utilization of diesel engine power have shortened total reservoir simultaneously.
The utility model the first pipeline also communicates by being provided with the 3rd pipeline of by pass valve with described fuel tank, by by pass valve is set, has guaranteed, when Hydraulic Pump charge oil pressure is excessive, effectively reduces charge oil pressure, has guaranteed the safety of fuel feeding.
In the utility model, described the first pipeline and described the 4th pipeline are respectively equipped with flow regulating valve.By flow regulating valve is set, more effectively guaranteed HM Hydraulic Motor oil inlet quantity, thereby effectively controlled the work speed of air compressor, controlled and realize total reservoir air compressing well.
Wherein, described air compressing unit also comprises the first air treatment module, the second air treatment module, the first boiler check valve, the second boiler check valve, described first air treatment module one end is connected with described the first air compressor, the other end is connected with the first boiler check valve, and described the first boiler check valve is connected with described total reservoir; Described second air treatment module one end is connected with described the second air compressor, and the other end is connected with the second boiler check valve, and described the second boiler check valve is connected with described total reservoir.
In the utility model, according to the needs of reality braking, total reservoir can arrange two.
In the utility model, when the first electromagnetic valve obtain electric, the second electromagnetic valve must not electricity, the first electromagnetic valve now, the second electromagnetic valve all disconnects, thereby hydraulic oil flows to first fluid motor-driven the first HM Hydraulic Motor work through the first pipeline, first fluid motor-driven the first Air compressor work.
When the first electromagnetic valve obtains electricly, the second electromagnetic valve obtains electric, and now the first electromagnetic valve disconnects, and the second electromagnetic valve is communicated with, thereby hydraulic oil flows to the first HM Hydraulic Motor through the first pipeline on the one hand, drives the first HM Hydraulic Motor work, drives the first Air compressor work; Flow to by the road again on the other hand second fluid motor-driven the second HM Hydraulic Motor work, second fluid motor-driven the second Air compressor work.The state of two Air compressors in work simultaneously now.
The mode of operation of public iron car Air compressor brake system is as follows:
First stage: public railway traction by road pattern is transformed into railway pattern.
Subordinate phase: the air compressing stage of the train Air compressor brake system of public iron car before public railway traction;
Phase III: the packing stage of the train Air compressor brake system of public iron car before public railway traction;
Fourth stage: the air draft deboost phase of the train Air compressor brake system of public iron car before public railway traction;
Five-stage: when pressure is less than 7.5bar, the supplementary pressurized air stage of the Train Air Brake System of public iron car before public railway traction.
First stage, public iron car when pattern is transformed into railway mode state by road the automatic control unit of vehicle control the first electromagnetic valve and obtain electric.When Gong Tieche highway state, the first electromagnetic valve is electroless state, its connection; The second electromagnetic valve disconnects, and the hydraulic oil at this moment being provided by Hydraulic Pump all overflows back fuel tank by the first electromagnetic valve, and at this moment Air compressor all remains static.When public iron car is switched to railway pattern the first electromagnetic valve, obtain electricly, it disconnects, and the hydraulic oil at this moment being provided by Hydraulic Pump drives the first HM Hydraulic Motor, and first fluid motor-driven the first air compressor running, for total reservoir provides pressurized air.
The air pressure that second stage need to be the total reservoir of 500L by two total volumes is in the short period of time compressed to 9.5bar, now need the rotating speed of diesel engine to be improved constantly by 700r/min, when diesel engine turns round below 1500r/min, by the control system of vehicle, control the first electromagnetic valve and continue electricly.At this moment by Hydraulic Pump, provide hydraulic fluid flow rate constantly to increase, the rotating speed of the first HM Hydraulic Motor also constantly increases thereupon simultaneously, now adjusts first throttle valve and makes the maximum speed of revolution of the first HM Hydraulic Motor remain on 700～800r/min.When needing within a short period of time by the air compressing of two total reservoirs during to 9.5bar, the rotating speed of diesel engine further need to be improved, when the rotating speed of diesel engine is brought up to 1500r/min when above, the automatic control unit of vehicle is controlled the second electromagnetic valve and is obtained electric, now the second electromagnetic valve is communicated with, now the second electromagnetic valve is connected the second HM Hydraulic Motor, the second HM Hydraulic Motor rotation is started working, now two HM Hydraulic Motor drive two Air compressors to work simultaneously, when the rotating speed of diesel engine is brought up to 2200r/min, the rotating speed of two HM Hydraulic Motor is brought up to 750r/min simultaneously, such two Air compressors are simultaneously in the state of operating at full capacity, under this state, approximately need 3min that the pressure of two total reservoirs is brought up to 9.5bar.
Phase III, packing stage, the contact of compressed air pump pressure regulator when the pressure of total reservoir is increased to 9.5bar, now the automatic control unit of vehicle control electromagnetic valve and Air compressor control circuit are by the failure of current of the first electromagnetic valve, the hydraulic oil being provided by Hydraulic Pump so all overflows back fuel tank by the first electromagnetic valve, now the one the second HM Hydraulic Motor all quit work, simultaneously the one the second Air compressors also quit work, no longer continue as total reservoir pressurized air is provided, make Train Air Brake System air pressure remain on 9.5bar, now also can cut off the electric current of the second electromagnetic valve.
Fourth stage, in the train braking stage, when needing train braking, (driver) pulls auxiliary reservoir and the brake cylinder that the handle of automatic braker makes the pressurized air of total reservoir enter rail vehicle by train pipe and makes train braking.
Five-stage, during train braking, the air pressure of total reservoir constantly reduces, and when the pressure decreased of total reservoir is following to 7.5bar, the control system of vehicle is again controlled electromagnetic valve and Air compressor control circuit and made the first electromagnetic valve obtain electric such Hydraulic Pump again to drive the first HM Hydraulic Motor and the first Air compressor running work.Now Train Air Brake System is in the air pressure ftercompction stage, until air pressure is while rising to 9.5bar, the control system of vehicle again controls electromagnetic valve and Air compressor control circuit makes the first electromagnetic valve dead electricity, and Air compressor is quit work.Make and so forth air pressure that the continual maintenance of Train Air Brake System is enough for train air brake.
Those of ordinary skill, not departing under the prerequisite of the utility model principle, can also make some improvements and modifications, and these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. a public iron vehicle air compressor brake system, comprise hydraulic drive unit and air compressing unit, it is characterized in that, described hydraulic drive unit comprises at least one Hydraulic Pump, the first valve, the second valve, the first HM Hydraulic Motor, the second HM Hydraulic Motor, described Hydraulic Pump communicates with the oil inlet of described the first HM Hydraulic Motor by the first pipeline, the oil outlet of described the first HM Hydraulic Motor communicates with fuel tank by the 6th pipeline, described the first pipeline communicates with described the 6th pipeline by being provided with the second pipeline of the first valve, described the first pipeline communicates with the oil inlet of described the second HM Hydraulic Motor by being provided with the 4th pipeline of the second valve, the oil outlet of described the second HM Hydraulic Motor is by the 5th pipeline and described the second pipeline, described the 6th pipeline communicates, described air compressing unit comprises the first air compressor, the second air compressor, at least one total reservoir, described the first HM Hydraulic Motor drives described the first air compressor, described the second HM Hydraulic Motor drives described the second air compressor, and described the first air compressor, described the second air compressor communicate with total reservoir.
2. public iron vehicle air compressor brake system according to claim 1, is characterized in that, described the first valve and described the second valve are electromagnetic valve.
3. public iron vehicle air compressor brake system according to claim 2, it is characterized in that, also comprise automatic control unit, described automatic control unit comprises signal acquisition module, signal processing module, signal transmitting module, described signal acquisition module is connected with described signal processing module, for gathering the rotating speed of diesel engine, the air pressure of total reservoir, described signal processing module and described signal acquisition module, signal transmitting module is connected, be used for judging described diesel engine speed, whether total reservoir air pressure reaches pre-set threshold value, described signal transmitting module and described signal processing module, the first valve, the second valve is connected, for opening and closing according to output control first valve of described signal processing module judgement and the second valve.
4. public iron vehicle air compressor brake system according to claim 3, is characterized in that, described the first pipeline also communicates by being provided with the 3rd pipeline of by pass valve with described fuel tank.
5. public iron vehicle air compressor brake system according to claim 4, is characterized in that, described the first pipeline and described the 4th pipeline are respectively equipped with flow regulating valve.
6. public iron vehicle air compressor brake system according to claim 5, it is characterized in that, described air compressing unit also comprises the first air treatment module, the second air treatment module, the first boiler check valve, the second boiler check valve, described first air treatment module one end is connected with described the first air compressor, the other end is connected with the first boiler check valve, and described the first boiler check valve is connected with described total reservoir; Described second air treatment module one end is connected with described the second air compressor, and the other end is connected with the second boiler check valve, and described the second boiler check valve is connected with described total reservoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320350376.6U CN203419125U (en) | 2013-06-19 | 2013-06-19 | Air compressor baking system for road-rail vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320350376.6U CN203419125U (en) | 2013-06-19 | 2013-06-19 | Air compressor baking system for road-rail vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN203419125U true CN203419125U (en) | 2014-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320350376.6U Expired - Fee Related CN203419125U (en) | 2013-06-19 | 2013-06-19 | Air compressor baking system for road-rail vehicle |
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| CN (1) | CN203419125U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273917A (en) * | 2013-06-19 | 2013-09-04 | 中国人民解放军军事交通学院 | Air compressor braking system for rail-road cars |
| CN107323445A (en) * | 2017-06-19 | 2017-11-07 | 中国煤炭科工集团太原研究院有限公司 | A kind of brake hard protection device |
-
2013
- 2013-06-19 CN CN201320350376.6U patent/CN203419125U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273917A (en) * | 2013-06-19 | 2013-09-04 | 中国人民解放军军事交通学院 | Air compressor braking system for rail-road cars |
| CN107323445A (en) * | 2017-06-19 | 2017-11-07 | 中国煤炭科工集团太原研究院有限公司 | A kind of brake hard protection device |
| CN107323445B (en) * | 2017-06-19 | 2023-09-12 | 中国煤炭科工集团太原研究院有限公司 | Emergency braking protection device |
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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 |
Granted publication date: 20140205 Termination date: 20160619 |
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| CF01 | Termination of patent right due to non-payment of annual fee |