CN1127713A - Automatic off-line testing and braking system for rolling stock - Google Patents
Automatic off-line testing and braking system for rolling stock Download PDFInfo
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- CN1127713A CN1127713A CN 95113055 CN95113055A CN1127713A CN 1127713 A CN1127713 A CN 1127713A CN 95113055 CN95113055 CN 95113055 CN 95113055 A CN95113055 A CN 95113055A CN 1127713 A CN1127713 A CN 1127713A
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- Braking Systems And Boosters (AREA)
Abstract
The safety system for railway transportation is composed of off-line braking tube, oneway valve, position sensor, microwave transmitter and receiver, signal processing device, executing mechanism and driver. Once the train is off-line, the condition may be immediately detected by the system and emergency braking takes place automatically. It features high reliability and combination of mechanical, electric and pneumatic mechanisms.
Description
The present invention aims to provide and can detect automatically when the rolling stock off-line and to the system of automatic braking of train, belong to the safety of railway traffic technical field.
The rolling stock off-line is the potential safety hazard that railway transportation is produced, and have the system-wide general character, and the safety of people's lives and properties and the safety of troop-carrying in serious threat.Automatically detect the vehicle off-line and when off-line the technology of autobrake, be the needs of railway transportation production safety, also be the technical barrier that Chinese scholars is concerned about for many years, but, do not see the bibliographical information of relevant achievement so far as yet through the Searches of Patent Literature.
The purpose of this invention is to provide a kind of also system of autobrake that when vehicle generation off-line, can in time detect automatically,, make causality loss reduce to minimum to avoid generation great, serious accident.
The relative position of wheel of vehicle and rail changed when for achieving the above object, the present invention detected off-line with position transduser; One end of off-line brake pipe and adjustable location case connect firmly, and connect with brake hose, close wheel rim place has cuts ring, position transduser is installed in the case of adjustable location, the air pressure relay is connected in the gas circuit between check valve and the off-line brake pipe, the located just train air main of stockless angle cock and check valve.Rail severs the off-line brake pipe during off-line, and the high pressure air exhaust to atmosphere makes air pressure rapid drawdown in the gas circuit pipeline, thereby realizes full train emergency braking, makes the air pressure relay contact closure simultaneously, makes the air pressure probe output signal.Position transduser and air pressure relay contact signal are sent into signal processor unit by microwave launcher and microwave receiving device, and simultaneously, the signal of the air pressure probe output that locomotive control is indoor is also sent into signal processor unit.In a single day signal processor unit obtains incoming signal, promptly produces output signal, makes actuating unit send sound and light alarm by driving circuit, cuts off traction power and air feed source, makes the train emergency braking.
As seen, the relative position of rail and wheel changed and impulsive contact force detects simultaneously when the present invention can be with off-line, simultaneously again with signal by two of microwave signal and gas path pipes channel transfer independently mutually, be that two kinds of duplex systems on the meaning detect and auto brake system automatically, and each autonomous system all can be finished automatic detection and autobrake function.Thereby guaranteed the height reliability of system.
Technical characterictic of the present invention and concrete structure are illustrated with following embodiment and accompanying drawing thereof.
Fig. 1 is off-line brake pipe and the installation site figure of position transduser on vehicle;
Fig. 2 is an off-line brake pipe structure diagram;
Fig. 3 is the structure diagram of off-line brake pipe and gas circuit thereof;
Fig. 4 is the schematic diagram of embodiments of the invention;
Fig. 5 is the microwave launcher driving circuit schematic diagram of embodiment;
Fig. 6 is signal processor unit and the emergency braking driving circuit schematic diagram of embodiment.
The present invention forms and (sees accompanying drawing 1 by being loaded on position transduser (1), off-line brake pipe (2), adjustable location case (3), brake hose (4), air pressure relay (5), check valve (6), stockless angle cock (7), the microwave launcher (8) on the bogie of car and being loaded on the indoor microwave receiving device of locomotive control (9), air pressure probe (10), signal processor unit (11), actuating unit (12), 3,4).
A position transduser (1) and an off-line brake pipe (2) are housed in adjustable location case (3), are used for the relative position (seeing accompanying drawing 1) of monitoring wheel and rail.When the off-line accident takes place, the relative position sudden change of position transduser (1) and rail and during less than limit, send the off-line signal, the work of triggering microwave launcher, simultaneously, rail severs off-line brake pipe (2), high pressure air from train air main (18) through stockless angle cock (7), check valve (6), brake hose (4) and off-line brake pipe (2) are arranged rapidly to atmosphere, make the train emergency braking, the air pressure rapid drawdown, make the closing of contact of air pressure relay (5), microwave launcher emission off-line signal (seeing accompanying drawing 3 and accompanying drawing 5), simultaneously, the rapid drawdown of air pressure also makes immediately and is loaded on the indoor air pressure probe of locomotive control (10) action, to signal processor unit output off-line signal.
Off-line brake pipe (2) is the tubular-shaped structures that an end seals an end and brake hose (4) connection, unlikelyly when the design of its strength and stiffness should guarantee train cruising and maintenance be damaged and vibrate, guarantee that again rail can sever it when the off-line accident takes place.For this reason, be provided with one section at the nearly root of off-line brake pipe and weaken the ring cutting place (13) of section through ring cutting, when being subjected to the rail bump, will fracture at the ring cutting place (seeing accompanying drawing 2) guarantees the total cross-section air draft; Make the train emergency braking.
Because various wheel of vehicle wheels footpath, the diameter of axle, bearing shell, watt pad size difference, factors such as axle box and adapter abrasion, the adjustable location case (3) that is used for fixing off-line brake pipe (2) and brake hose (4) adopts adjustable structure, can move adjustment up and down, so that after car inspection and maintenance, off-line brake pipe (2) and position sensing (1) can be adjusted to specified value apart from the distance of rail level.
Respectively adorn a position transduser (1) and an off-line brake pipe (2) in each adjustable location, truck side frame lower end case, a joint vehicle is totally 4 covers.2 off-line brake pipes of same bogie truck both sides are formed one group, and the brake hose of two off-line brake pipes is drawn afterwards and connect from adjustable location case (3) separately, passes through check valve (6) and stockless angle cock (7) again and inserts air main (18).In the gas circuit between check valve (6) and off-line brake pipe (2), also and be connected to air pressure relay (5), when off-line takes place, air pressure rapid drawdown, air pressure relay (5) closing of contact, connection signal power supply, the work of triggering microwave launcher.(seeing accompanying drawing 3 and accompanying drawing 5)
When train carries out service braking operation and makes air main (18) step-down, because the effect of check valve (6), blocked when train braking by the backflow of the high pressure air in the gas circuit of the present invention to air main, thereby eliminate and reduced since gas circuit of the present invention insert that the train air main brings to train service braking velocity of wave and emergency braking velocity of wave, release propagation rate and the influence of technical indexs such as inflationtime again, the reliability in " accurate, fast, light, the quiet " characteristics that guarantee the former brake of train and the application.Because train is an all weather operation, is provided with a stockless angle cock (7) in admission line of the present invention, when not having the off-line of replacing brake pipe condition at accident condition, be the compression stopping time, can close the stockless angle cock and handle.The effect of stockless angle cock (7) and check valve (6) has determined their installation site to be positioned to be right after air main (18) to locate.
Microwave signal between microwave launcher (8) and microwave receiving device (9) is to utilize to be transmitted by the vehicle bottom space that carriage bottom plate, wheel, rail and railway roadbed constituted.
Fig. 5 has provided the driving principle figure of microwave launcher.It is anodal that power supply (22) positive pole connects the input of microwave launcher (8) power supply, the negative pole of one end of the ground end of position transduser (1) signal output and the contact of air pressure relay (5) and the emitter power connection (22) of semiconductor switch (21), the collecting electrode of the contact other end of air pressure relay (5) and semiconductor switch (21) connects the power supply input negative pole end of microwave launcher (8), and the base stage of semiconductor switch (21) connects the positive terminal of position sensor signal output; When position transduser and rail relative position when taking place off-line less than limit, position transduser triggers semiconductor switch (21) conducting, thereby makes microwave launcher (8) work; In addition, the open contact of air pressure relay (5) also triggers microwave launcher (8) work because of air pressure bust when closed.
For improving the anti-interference resistance and the reliability of microwave signal transmission, through series of theories analysis, calculating and field experiment, determine to select the x wave band of microwave signal, and utilize the vehicle bottom space, realize that the x band signal is in the transmission that has under the various road conditions such as the straight line of the gradient, bend, tunnel and bridge.Microwave signal emission and receiving wire adopt vertical polarization.
Signal processor unit (11) and emergency braking driving circuit are shown in Fig. 6.Circuit is made up of OR circuit (36), semiconductor switch two (37), relay (31), connector (30), 110V direct supply (38), power supply V (40) and locomotive brake electromagnetic valve coil (39).Semiconductor switch (37) base stage connects the OR circuit mouth, the ground of emitter power connection V (40), one end of collector connecting relay (31) drive coil, the positive terminal of the other end power connection V (40) of relay (31) drive coil, relay (31) open contact two ends link to each other with connector (30), 110V direct supply (38) negative pole links to each other with locomotive brake electromagnetic valve coil (39) one ends, and the positive pole of the coil other end and 110V direct supply links to each other with connector.
The signal that is transmitted by microwave receiving device (9) and air pressure probe (10) becomes two input ends that the switching value signal is sent into OR circuit (36) respectively through amplifying shaping.As long as a signal is effective, OR circuit is just exported high level, semiconductor switch two (37) conductings, relay (31) adhesive, make the 110V direct supply (38) on the locomotive power up the locomotive brake electromagnetic valve by connector (30) again, thereby realize cutting off emergency braking functions such as locomotive traction power, disconnection air feed source.
Claims (3)
1. a vehicle off-line detects and auto brake system automatically, by the position transduser that is loaded on lower vehicle (1), off-line brake pipe (2), adjustable location case (3), brake hose (4), air pressure relay (5), check valve (6), stockless angle cock (7), microwave launcher (8) and be loaded on the indoor microwave receiving device of locomotive control (9), air pressure probe (10), signal processor unit (11), actuating unit (12) is formed, its technical characterictic is: an end of off-line brake pipe (2) and adjustable location case (3) connect firmly, and connect with brake hose (4), close wheel rim place has cuts ring (13), position transduser (1) is installed in the adjustable location case (3), air pressure relay (5) is connected in the gas circuit between check valve (6) and the off-line brake pipe (2), the located just train air main (18) of stockless angle cock (7) and check valve (6).
2. detect automatically and auto brake system according to the described vehicle off-line of claim 1, its technical characterictic is: the microwave signal of microwave launcher (8) and microwave receiving device (9) adopts the x wave band, emitting antenna and receiving wire adopt vertical polarization, and utilize the train bottom space to carry out the transmission of microwave signal; The driving circuit of feedway (8) is: it is anodal that power supply (22) positive pole connects the input of microwave launcher (8) power supply; The negative pole of one end of the ground end of position transduser (1) signal output and the contact of air pressure relay (5) and the emitter power connection (22) of semiconductor switch (21); The collecting electrode of the contact switch other end of air pressure relay (5) and semiconductor switch (21) connects the power supply input negative pole end of microwave launcher (8); The base stage of semiconductor switch (21) connects the positive terminal of position transduser (1) signal output.
3. detect automatically and auto brake system according to claim 1 and 2 described vehicle off-lines, its technical characterictic is: signal processor unit (11) and emergency braking driving circuit are: be made up of OR circuit (36), semiconductor switch two (37), relay (31), connector (30), 110V direct supply (38), power supply V (40) and locomotive brake electromagnetic valve coil (39); Semiconductor switch two (37) base stages connect the OR circuit mouth, the ground of emitter power connection V (40), one end of collector connecting relay (31) drive coil, the positive terminal of the other end power connection V (40) of relay (31) drive coil, relay normally open contact two ends link to each other with connector (30), 110V direct supply (38) negative pole links to each other with locomotive brake electromagnetic valve coil (39) one ends, and the positive pole of the coil other end and 110V direct supply links to each other with connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95113055A CN1094443C (en) | 1995-11-03 | 1995-11-03 | Automatic off-line testing and braking system for rolling stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95113055A CN1094443C (en) | 1995-11-03 | 1995-11-03 | Automatic off-line testing and braking system for rolling stock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1127713A true CN1127713A (en) | 1996-07-31 |
| CN1094443C CN1094443C (en) | 2002-11-20 |
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ID=5079846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95113055A Expired - Fee Related CN1094443C (en) | 1995-11-03 | 1995-11-03 | Automatic off-line testing and braking system for rolling stock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1094443C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982338A (en) * | 2010-11-15 | 2011-03-02 | 中国铁道科学研究院机车车辆研究所 | Rise and fall control device and control method thereof for pantograph of railway vehicles |
| CN105015537A (en) * | 2015-08-19 | 2015-11-04 | 永济新时速电机电器有限责任公司 | High-speed manned train traction control system |
| CN105083251A (en) * | 2014-11-28 | 2015-11-25 | 南车青岛四方机车车辆股份有限公司 | Train automatic braking control circuit based on bogie unstability detecting devices |
| WO2016082659A1 (en) * | 2014-11-28 | 2016-06-02 | 中车青岛四方机车车辆股份有限公司 | Train automatic braking control circuit based on bogie instability detection apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2106761U (en) * | 1991-08-13 | 1992-06-10 | 武汉市青山区飞龙新科技研究所 | Automatic drake for aerailing of rail vehicles |
-
1995
- 1995-11-03 CN CN95113055A patent/CN1094443C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982338A (en) * | 2010-11-15 | 2011-03-02 | 中国铁道科学研究院机车车辆研究所 | Rise and fall control device and control method thereof for pantograph of railway vehicles |
| CN101982338B (en) * | 2010-11-15 | 2012-06-27 | 中国铁道科学研究院机车车辆研究所 | Rise and fall control device and control method thereof for pantograph of railway vehicles |
| CN105083251A (en) * | 2014-11-28 | 2015-11-25 | 南车青岛四方机车车辆股份有限公司 | Train automatic braking control circuit based on bogie unstability detecting devices |
| WO2016082659A1 (en) * | 2014-11-28 | 2016-06-02 | 中车青岛四方机车车辆股份有限公司 | Train automatic braking control circuit based on bogie instability detection apparatus |
| CN105083251B (en) * | 2014-11-28 | 2017-12-01 | 中车青岛四方机车车辆股份有限公司 | Automatic braking of train control circuit based on bogie unstability detection means |
| CN105015537A (en) * | 2015-08-19 | 2015-11-04 | 永济新时速电机电器有限责任公司 | High-speed manned train traction control system |
| CN105015537B (en) * | 2015-08-19 | 2017-08-11 | 永济新时速电机电器有限责任公司 | High speed manned train pull-in control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1094443C (en) | 2002-11-20 |
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