CN103273917A - Air compressor braking system for rail-road cars - Google Patents
Air compressor braking system for rail-road cars Download PDFInfo
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- CN103273917A CN103273917A CN2013102427628A CN201310242762A CN103273917A CN 103273917 A CN103273917 A CN 103273917A CN 2013102427628 A CN2013102427628 A CN 2013102427628A CN 201310242762 A CN201310242762 A CN 201310242762A CN 103273917 A CN103273917 A CN 103273917A
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- air compressor
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- hydraulic motor
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Abstract
The invention discloses an air compressor braking system for rail-road cars. The air compressor braking system for the rail-road cars comprises a hydraulic driving unit and an air compressing unit, wherein the hydraulic driving unit comprises at least one hydraulic pump, a first valve, a second valve, a first hydraulic motor and a second hydraulic motor, and the air compressing unit comprises a first air compressor, a second air compressor and at least one main air reservoir. According to the air compressor braking system for the rail-road cars, by arranging the two air compressors and the hydraulic driving motors of the two air compressors to shorten the pressurization time, the braking requirements of the rail-road cars can be effectively met.
Description
Technical field
The invention belongs to rail-road car braking technology field, relate in particular to the automobile-used Air compressor brake system of a kind of public iron.
Background technology
Rail-road car is called public iron car again, public iron car has that power is little, weight is little, relative tractive force big, the economic wet goods advantage of economizing, and present 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 duty draw since tractive load weight much larger than the weight of tractor truck, thereby public affairs iron car can't provide enough braking forces when train braking.In order to address this problem, draw tonnage now greater than all having installed the railway brake system additional on 1200 tons the public iron car.The railway brake system simplifies the train braking system process of locomotive to be installed on then on the public iron car, just can implement train braking to the vehicle of public iron car traction by handling train braking system like this, guaranteed that the permutation car has enough braking forces, and then guaranteed traffic safety.
Because space and the power of public iron car all are far smaller than locomotive, therefore public iron car have no idea to install additional power enough big air compressor be called Air compressor again, yet, train braking system requires to have very, and the Da Chu air quantity satisfies the demand of braking, if for the storage reservoir provides pressurized air just can need long time, can not effectively satisfy the braking requirement of public iron car with traditional single Air compressor.
Summary of the invention
The purpose of this invention is to provide the automobile-used Air compressor brake system of a kind of public iron, to solve the defective that exists in the above-mentioned prior art.
In order to finish the object of the invention, the invention provides the automobile-used Air compressor brake system of a kind of public iron, comprise hydraulic drive unit and air compression unit, described hydraulic drive unit comprises at least one Hydraulic Pump, first valve, second valve, first HM Hydraulic Motor, second HM Hydraulic Motor, described Hydraulic Pump communicates by the oil inlet of first pipeline with described first HM Hydraulic Motor, the oil outlet of described first HM Hydraulic Motor communicates with fuel tank by the 6th pipeline, described first pipeline communicates with described the 6th pipeline by second pipeline that is provided with first valve, described first pipeline communicates with the oil inlet of described second HM Hydraulic Motor by the 4th pipeline that is provided with second valve, and the oil outlet of described second HM Hydraulic Motor is by the 5th pipeline and described second pipeline, described the 6th pipeline communicates; Described air compression unit comprises first air compressor, second air compressor, at least one total reservoir, described first HM Hydraulic Motor drives described first air compressor, described second HM Hydraulic Motor drives described second air compressor, and described first air compressor, described second air compressor communicate with total reservoir.
Wherein, described first valve and described 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 links to each other with described signal processing module, be used 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 links to each other, 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, first valve, second valve links to each other, and is used for controlling first valve and second valve opening and closing according to the result that described signal processing module is judged.
Wherein, described first pipeline also communicates by the 3rd pipeline that is provided with by pass valve with described fuel tank.
Wherein, described first pipeline and described the 4th pipeline are respectively equipped with flow regulating valve.
Wherein, described air compression unit also comprises first air treatment module, second air treatment module, first boiler check valve, second boiler check valve, described first air treatment module, one end links to each other with described first air compressor, the other end links to each other with first boiler check valve, and described first boiler check valve links to each other with described total reservoir; Described second air treatment module, one end links to each other with described second air compressor, and the other end links to each other with second boiler check valve, and described second boiler check valve links to each other with described total reservoir.
Beneficial effect of the present invention is that the automobile-used Air compressor brake system of a kind of public iron provided by the invention shortens the pressurising time by two Air compressors being set and driving HM Hydraulic Motor to reach, and effectively satisfies the braking requirement of public iron car.
Description of drawings
Fig. 1 is hydraulic drive unit scheme drawing of the present invention;
Fig. 2 is air compression unit scheme drawing of the present invention;
Fig. 3 is automatic control unit scheme drawing of the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
As accompanying drawing 1, accompanying drawing 2, shown in the accompanying drawing 3, the invention provides the automobile-used Air compressor brake system of a kind of public iron, comprise hydraulic drive unit and air compression unit, described hydraulic drive unit comprises at least one Hydraulic Pump, first valve, second valve, first HM Hydraulic Motor, second HM Hydraulic Motor, described Hydraulic Pump communicates by the oil inlet of first pipeline with described first HM Hydraulic Motor, the oil outlet of described first HM Hydraulic Motor communicates with fuel tank by the 6th pipeline, described first pipeline communicates with described the 6th pipeline by second pipeline that is provided with first valve, described first pipeline communicates with the oil inlet of described second HM Hydraulic Motor by the 4th pipeline that is provided with second valve, and the oil outlet of described second HM Hydraulic Motor is by the 5th pipeline and described second pipeline, described the 6th pipeline communicates; Described air compression unit comprises first air compressor, second air compressor, at least one total reservoir, described first HM Hydraulic Motor drives described first air compressor, described second HM Hydraulic Motor drives described second air compressor, and described first air compressor, described second air compressor communicate with total reservoir.
Need to prove, under untapped state, this moment second valve closing, first valve is communicated with, thus hydraulic oil through first pipeline, second pipeline and the 6th pipeline directly flow back to fuel tank, first Air compressor and second Air compressor are not all worked; Diesel-engined drive change speed gear box, Hydraulic Pump are directly installed on the PTO mouth of change speed gear box, connect by hydraulic tubing between Hydraulic Pump and the HM Hydraulic Motor; HM Hydraulic Motor is connected with air compressor by transmission shaft, drives air compressor work.
Among the present invention, described first valve and described 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 links to each other with described signal processing module, be used 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 links to each other, 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, first valve, second valve links to each other, and is used for controlling first valve and second valve opening and closing according to the result that described signal processing module is judged.
Need to prove, the present invention is by regulating total reservoir air pressure, diesel engine speed, valve opening, the operation of control brake system, can automatically adjust and keep the stable of Air compressor rotating speed according to diesel engine speed, the degree of utilization that has improved the efficient of Hydraulic Pump and diesel engine power have simultaneously again greatly shortened the air compression time of total reservoir.
The present invention's first pipeline also communicates by the 3rd pipeline that is provided with by pass valve with described fuel tank, has guaranteed by by pass valve is set, and when the Hydraulic Pump charge oil pressure is excessive, effectively reduces charge oil pressure, has guaranteed the safety of fuel feeding.
Among the present invention, described first pipeline and described the 4th pipeline are respectively equipped with flow regulating valve.By being set, flow regulating valve guaranteed the HM Hydraulic Motor oil inlet quantity more effectively, thereby effectively controlled the work speed of air compressor that control realizes total reservoir air compression well.
Wherein, described air compression unit also comprises first air treatment module, second air treatment module, first boiler check valve, second boiler check valve, described first air treatment module, one end links to each other with described first air compressor, the other end links to each other with first boiler check valve, and described first boiler check valve links to each other with described total reservoir; Described second air treatment module, one end links to each other with described second air compressor, and the other end links to each other with second boiler check valve, and described second boiler check valve links to each other with described total reservoir.
According to the needs of reality braking, total reservoir can arrange two among the present invention.
Among the present invention, when first electromagnetic valve gets electricly, second electromagnetic valve must not, this moment first electromagnetic valve, second electromagnetic valve all disconnects, thereby hydraulic oil flows to the first HM Hydraulic Motor work of first fluid motor-driven through first pipeline, the first Air compressor work of first fluid motor-driven.
When first electromagnetic valve gets electricly, second electromagnetic valve gets electric, and this moment, first electromagnetic valve disconnected, and second electromagnetic valve is communicated with, thereby hydraulic oil flows to first HM Hydraulic Motor through first pipeline on the one hand, drives the first HM Hydraulic Motor work, drives the first Air compressor work; Flow to the second HM Hydraulic Motor work of second fluid motor-driven on the other hand again by the road, the second Air compressor work of second fluid motor-driven.This moment, two Air compressors were in the state of working simultaneously.
The mode of operation of public iron car Air compressor brake system is as follows:
F/s: public railway traction pattern by road is transformed into the railway pattern.
Subordinate phase: the air compression stage of the train Air compressor brake system of public iron car before the public railway traction;
Phase III: the packing stage of the train Air compressor brake system of public iron car before the public railway traction;
Quadravalence section: the air draft deboost phase of the train Air compressor brake system of public iron car before the public railway traction;
Five-stage: when pressure during less than 7.5bar, the additional pressurized air stage of the train Pneumatic brake systems of public iron car before the public railway traction.
F/s, public iron car when pattern is transformed into the railway mode state by road the automatic control unit of vehicle control first electromagnetic valve and get.When public iron car during at the highway state first electromagnetic valve be electroless state, its connection; Second electromagnetic valve disconnects, and at this moment the hydraulic oil that is provided by Hydraulic Pump all overflows back fuel tank by first electromagnetic valve, and at this moment Air compressor all remains static.Get electricly when public iron car switches to railway pattern first electromagnetic valve, it disconnects, and at this moment the hydraulic oil that is provided by Hydraulic Pump drives first HM Hydraulic Motor, and the running of first fluid motor-driven, first air compressor is for total reservoir provides pressurized air.
Second stage needs the air pressure that is the total reservoir of 500L with two total volumes in the short period of time to be compressed to 9.5bar, need be improved constantly the rotating speed of diesel engine this moment by 700r/min, when diesel engine turns round below 1500r/min, control first electromagnetic valve by the control system of vehicle and continue.At this moment provide hydraulic fluid flow rate constantly to increase by Hydraulic Pump, the rotating speed of first HM Hydraulic Motor also constantly increases thereupon simultaneously, and adjust the first throttle valve this moment makes the maximum speed of revolution of first HM Hydraulic Motor remain on 700～800r/min.When needing within a short period of time the air with two total reservoirs be compressed to 9.5bar, the rotating speed of diesel engine further need 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 second electromagnetic valve and is got, this moment, second electromagnetic valve was communicated with, this moment, second electromagnetic valve was connected second HM Hydraulic Motor, the rotation of second HM Hydraulic Motor is started working, two Air compressors of two HM Hydraulic Motor drives this moment are worked simultaneously, the rotating speed of two HM Hydraulic Motor is brought up to 750r/min simultaneously when the rotating speed of diesel engine is brought up to 2200r/min, such two Air compressors are in the state of operating at full capacity simultaneously, approximately need 3min that the pressure of two total reservoirs is brought up to 9.5bar under this state.
Phase III, packing stage, the contact of air pump pressure regulator contact when the pressure of total reservoir is increased to 9.5bar, the automatic control unit of vehicle control electromagnetic valve and Air compressor control circuit are with the failure of current of first electromagnetic valve at this moment, the hydraulic oil that is provided by Hydraulic Pump all overflows back fuel tank by first electromagnetic valve like this, this moments 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 Pneumatic brake systems air pressure remain on 9.5bar, also can cut off the electric current of second electromagnetic valve this moment.
The quadravalence section, in the train braking stage, the handle that (driver) pulls automatic braker when needing train braking makes the pressurized air of total reservoir make train braking by auxiliary reservoir and the brake cylinder that the train pipe enters rail vehicle.
Five-stage, the air pressure of total reservoir constantly reduces during train braking, when the pressure of total reservoir be reduced to 7.5bar when following the control system of vehicle control electromagnetic valve and Air compressor control circuit again and make first electromagnetic valve get electric such Hydraulic Pump to drive first HM Hydraulic Motor and the first Air compressor running work again.This moment, the train Pneumatic brake systems was in the air pressure ftercompction stage, and when air pressure rose to 9.5bar, the control system of vehicle controls electromagnetic valve again and the Air compressor control circuit makes the first electromagnetic valve dead electricity, makes Air compressor quit work.Make the enough air pressures of the continual maintenance of train Pneumatic brake systems be used for train air brake and so forth.
Those of ordinary skill under the prerequisite that does not break away from the principle of the invention, can also be made some improvements and modifications, and these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. automobile-used Air compressor brake system of public iron, comprise hydraulic drive unit and air compression unit, it is characterized in that, described hydraulic drive unit comprises at least one Hydraulic Pump, first valve, second valve, first HM Hydraulic Motor, second HM Hydraulic Motor, described Hydraulic Pump communicates by the oil inlet of first pipeline with described first HM Hydraulic Motor, the oil outlet of described first HM Hydraulic Motor communicates with fuel tank by the 6th pipeline, described first pipeline communicates with described the 6th pipeline by second pipeline that is provided with first valve, described first pipeline communicates with the oil inlet of described second HM Hydraulic Motor by the 4th pipeline that is provided with second valve, and the oil outlet of described second HM Hydraulic Motor is by the 5th pipeline and described second pipeline, described the 6th pipeline communicates; Described air compression unit comprises first air compressor, second air compressor, at least one total reservoir, described first HM Hydraulic Motor drives described first air compressor, described second HM Hydraulic Motor drives described second air compressor, and described first air compressor, described second air compressor communicate with total reservoir.
2. the automobile-used Air compressor brake system of public iron according to claim 1 is characterized in that, described first valve and described second valve are electromagnetic valve.
3. the automobile-used Air compressor brake system of public iron 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 links to each other with described signal processing module, be used 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 links to each other, 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, first valve, second valve links to each other, and is used for controlling first valve and second valve opening and closing according to the result that described signal processing module is judged.
4. the automobile-used Air compressor brake system of public iron according to claim 3 is characterized in that, described first pipeline also communicates by the 3rd pipeline that is provided with by pass valve with described fuel tank.
5. the automobile-used Air compressor brake system of public iron according to claim 4 is characterized in that, described first pipeline and described the 4th pipeline are respectively equipped with flow regulating valve.
6. the automobile-used Air compressor brake system of public iron according to claim 5, it is characterized in that, described air compression unit also comprises first air treatment module, second air treatment module, first boiler check valve, second boiler check valve, described first air treatment module, one end links to each other with described first air compressor, the other end links to each other with first boiler check valve, and described first boiler check valve links to each other with described total reservoir; Described second air treatment module, one end links to each other with described second air compressor, and the other end links to each other with second boiler check valve, and described second boiler check valve links to each other with described total reservoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102427628A CN103273917A (en) | 2013-06-19 | 2013-06-19 | Air compressor braking system for rail-road cars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102427628A CN103273917A (en) | 2013-06-19 | 2013-06-19 | Air compressor braking system for rail-road cars |
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| Publication Number | Publication Date |
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| CN103273917A true CN103273917A (en) | 2013-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102427628A Pending CN103273917A (en) | 2013-06-19 | 2013-06-19 | Air compressor braking system for rail-road cars |
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| CN (1) | CN103273917A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104290740B (en) * | 2014-09-18 | 2017-04-26 | 湖南南车时代电动汽车股份有限公司 | Double-air-source system of electric vehicle and method and system for controlling same |
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| US4086856A (en) * | 1976-09-27 | 1978-05-02 | Chenoweth Charles E | Apparatus employing an intermediate vehicle for operably intercoupling a tractor or the like with railroad cars |
| US5533333A (en) * | 1994-04-29 | 1996-07-09 | Atlantic Richfield Company | Method and regulator for regulating the air pressure of a pressurized vessel |
| JP2001317464A (en) * | 2000-05-10 | 2001-11-16 | Osaka Shell Kogyosho:Kk | Air compressor |
| CN1603185A (en) * | 2003-09-16 | 2005-04-06 | 哈尔德克斯制动器公司 | System for regulating the supply of power to a brake system |
| CN2908853Y (en) * | 2006-05-11 | 2007-06-06 | 张勇 | Hydraulic drive structure of producing compressed gas |
| CN201865881U (en) * | 2010-08-02 | 2011-06-15 | 昆明中铁大型养路机械集团有限公司 | Hydraulic driving device of air compressor |
| CN102582606A (en) * | 2012-03-16 | 2012-07-18 | 上海庞丰交通设备科技有限公司 | Hydraulic brake device |
| CN203419125U (en) * | 2013-06-19 | 2014-02-05 | 中国人民解放军军事交通学院 | Air compressor baking system for road-rail vehicle |
-
2013
- 2013-06-19 CN CN2013102427628A patent/CN103273917A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4086856A (en) * | 1976-09-27 | 1978-05-02 | Chenoweth Charles E | Apparatus employing an intermediate vehicle for operably intercoupling a tractor or the like with railroad cars |
| US5533333A (en) * | 1994-04-29 | 1996-07-09 | Atlantic Richfield Company | Method and regulator for regulating the air pressure of a pressurized vessel |
| JP2001317464A (en) * | 2000-05-10 | 2001-11-16 | Osaka Shell Kogyosho:Kk | Air compressor |
| CN1603185A (en) * | 2003-09-16 | 2005-04-06 | 哈尔德克斯制动器公司 | System for regulating the supply of power to a brake system |
| CN2908853Y (en) * | 2006-05-11 | 2007-06-06 | 张勇 | Hydraulic drive structure of producing compressed gas |
| CN201865881U (en) * | 2010-08-02 | 2011-06-15 | 昆明中铁大型养路机械集团有限公司 | Hydraulic driving device of air compressor |
| CN102582606A (en) * | 2012-03-16 | 2012-07-18 | 上海庞丰交通设备科技有限公司 | Hydraulic brake device |
| CN203419125U (en) * | 2013-06-19 | 2014-02-05 | 中国人民解放军军事交通学院 | Air compressor baking system for road-rail vehicle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104290740B (en) * | 2014-09-18 | 2017-04-26 | 湖南南车时代电动汽车股份有限公司 | Double-air-source system of electric vehicle and method and system for controlling same |
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Application publication date: 20130904 |