CN107036829B - High-accuracy multifunctional railcar brake system test platform and its application method - Google Patents
High-accuracy multifunctional railcar brake system test platform and its application method Download PDFInfo
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- CN107036829B CN107036829B CN201610858636.9A CN201610858636A CN107036829B CN 107036829 B CN107036829 B CN 107036829B CN 201610858636 A CN201610858636 A CN 201610858636A CN 107036829 B CN107036829 B CN 107036829B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/08—Railway vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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Abstract
The present invention relates to a kind of brake system test platforms, more particularly, to a kind of high-accuracy multifunctional railcar brake system test platform and its application method.It is mainly that brake valve testing general utility functions present in the solution prior art are relatively simple, and versatility is poor, can only be directed to specific valve, intelligence degree is relatively low, the not high technical problem of integrated testability precision.Testing stand of the invention includes organic frame, Industrial PC Computer is equipped in rack, Industrial PC Computer connects data collecting card, printer, Ethernet switch, Ethernet switch connects servomotor controller by programmable PLC, solenoid valve, pressure sensor, electric Proportion valve, pressure display table, servomotor controller is connected with servo motor, solenoid valve connects Pneumatic valve, the outer surface of rack is equipped with altitude valve test fixture, valve plate, interface there are six being set on valve plate, each interface is connected to solenoid valve by gas circuit, pressure sensor, electric Proportion valve, pressure display table, Pneumatic valve.
Description
Technical field
The present invention relates to a kind of brake system test platforms, more particularly, to a kind of high-accuracy multifunctional railcar braking system
System testing stand and its application method.
Background technique
The important component of braking system in brake valve class railcar braking system, if altitude valve is for controlling air
Spring pressure and height of the carbody.When there is the height change due to caused by compartment load-carrying between car body and bogie, altitude valve can
To adjust inflation, the exhaust of air spring.Car body is set to be maintained at the state of balance.Safety valve can guarantee the pressure of air-channel system
No more than maximum permissible value.Ball valve and solenoid valve can control the on-off of gas circuit to realize the control braked to railcar.
The normal work of these braking valve members is to guarantee that railcar is capable of the necessary condition of safety and steady implementation braking.So to its property
The test of energy is that essential, traditional brake valve testing general utility functions are relatively simple, and versatility is poor, can only be directed to specific
Valve, intelligence degree is relatively low, and integrated testability precision is not high.
Summary of the invention
The present invention is to provide a kind of high-accuracy multifunctional railcar brake system test platform and its application method, main
It is that brake valve testing general utility functions present in the solution prior art are relatively simple, versatility is poor, it can only be directed to specific valve,
Intelligence degree is relatively low, the not high technical problem of integrated testability precision.
Above-mentioned technical problem of the invention is mainly to be addressed by following technical proposals:
High-accuracy multifunctional railcar brake system test platform of the invention, the testing stand includes organic frame, machine
Industrial PC Computer is equipped in frame, Industrial PC Computer is handed over by connection data collecting card, printer, Ethernet switch, Ethernet
It changes planes and servomotor controller, solenoid valve, pressure sensor, electric Proportion valve, pressure display table is connected by programmable PLC,
Servomotor controller is connected with servo motor, and solenoid valve connects Pneumatic valve, the outer surface of rack be equipped with altitude valve test fixture,
Valve plate, valve plate are equipped with first interface, second interface, third interface, the 4th interface, the 5th interface, the 6th interface, and each interface is logical
Cross gas circuit connection solenoid valve, pressure sensor, electric Proportion valve, pressure display table, Pneumatic valve.
Data collecting card is installed on inside Industrial PC Computer, and printer is connect for printing test data, ether with Industrial PC
Network switch connect programmable PLC with Industrial PC Computer and programmable PLC and connect with servomotor controller, Serve Motor Control
Device controls servo motor movement, and servo motor connect with solenoid valve for controlling the movement of altitude valve swing rod, programmable PLC, controls
The gas path on-off of solenoid valve, solenoid valve block at control gas circuit control Pneumatic valve on-off.Programmable PLC receives each loine pressure
Partial key signal is simultaneously shown in pressure display table by the pressure signal of sensor.Programmable PLC is connect with electric Proportion valve, control
Make the pressure output of each test pipeline.Test pipe-line system designs altogether 6 test interfaces, for the different measurements by test specimen.
High-accuracy multifunctional railcar brake system test platform can complete the test of a variety of railcar braking system correlation valve members,
Test process automation degree is high, and data automatic collection and can print.
Altitude valve swing rod is driven through servo motor completion, and servo motor can be according to the instruction of servomotor controller
It is rotated, drives high-precision screw rod, the operating angle of swing rod is calculated by the move distance of swing rod and the length gauge of swing rod.Match
It closes test interface and its corresponding pipeline, the relativeness of available altitude valve swing rod angle and deflation rate passes through song
Line fitting forms the swing rod angle and deflation rate figure of complete altitude valve, can more fully be detected by contrast standard figure
The comprehensive performance of altitude valve.
Testing stand provides 24V and 110V DC power supply, for cooperating the Combined Trials of electrification valve class and gas circuit.It herein can be with
The test for completing a variety of solenoid valves, Motor ability and function including solenoid valve.
6th interface is spare interface, can be exchanged with the 5th interface.
Preferably, the described valve plate connection second pressure sensor, the 4th pressure sensor, the 5th pressure sensor,
6th pressure sensor, the 7th pressure sensor, third ball valve；Second pressure sensor is sequentially connected first-hand rotary valve, first
Pneumatic valve, second solenoid valve, the first solenoid valve, the first electric Proportion valve；Third ball valve be connected separately with third pressure sensor,
4th ball valve, second-hand's rotary valve, second-hand's rotary valve connect the first electric Proportion valve by the second Pneumatic valve；4th pressure sensor
It is sequentially connected third hand rotary valve, third Pneumatic valve, third solenoid valve, the second electric Proportion valve；5th pressure sensor successively connects
Connect the 4th hand rotary valve, the 4th Pneumatic valve, the 4th solenoid valve, third electric Proportion valve；6th pressure sensor is separately connected the 5th
Pneumatic valve, the 7th Pneumatic valve, the 5th Pneumatic valve are sequentially connected the 8th pressure sensor, the 6th Pneumatic valve, the 7th Pneumatic valve difference
Connect the 8th Pneumatic valve, the 5th ball valve, check valve；7th pressure sensor is separately connected the 9th Pneumatic valve, the tenth Pneumatic valve, the
Nine Pneumatic valves connect check valve, and the tenth Pneumatic valve is sequentially connected the 9th pressure sensor, the 11st Pneumatic valve；Each Pneumatic valve
It is connected with a solenoid valve, solenoid valve, the first electric Proportion valve, the second electric Proportion valve, third electric Proportion valve are connected in parallel
There is first pressure sensor, first pressure sensor is connected with filter, the second ball valve, safety valve, filtering bigeminy part, the first ball
Valve.
Pressure measurement is measured by air pressure probe, and measured value is fed back to industry by PLC and data collecting card
PC.Industrial PC optimizes filtering processing to the pressure value acquired in the unit time, obtains effective intermediate value as pressure at this time
Value.Time counting in test process is completed by PLC.It can be configured in Industrial PC for the testing standard of different valves,
After experiment Industrial PC can contrast standard value determine whether tested valve member qualified.
Preferably, the air circuit connection has gas boosting valve.The wind regime pressure that testing stand uses is generally 0.9MPa,
When the cracking pressure of safety valve is more than 0.9Mpa, safety valve can not directly be tested by testing stand itself wind regime pressure.For solution
Certainly this problem, Test-bed Design have gas boosting valve, when wind regime pressure is relatively low, can also meet the test to safety valve.?
When wind regime pressure is 0.9Mpa, the test of 1.3Mpa safety valve can be completed.
A kind of application method of high-accuracy multifunctional railcar brake system test platform, the method include:
A. altitude valve tests piping connection, and railcar is connect with altitude valve V interface with third interface, L interface and the
Five interfaces connect, and altitude valve is fixed on altitude valve test fixture after piping connection；
B. the leakproofness of connecting line is checked, the second electric Proportion valve adjusts compressed air pressure, and third solenoid valve is opened,
Third Pneumatic valve is opened, and third hand rotary valve is opened, and the compressed air of specified pressure is filled with to altitude valve, and stablize a period of time,
Testing each interface has No leakage；
C. test height valve neutral position air-tightness drives altitude valve swing rod to be in neutral position by servo motor, to
Altitude valve fills wind, and the second electric Proportion valve adjusts compressed air pressure, and third solenoid valve is opened, and third Pneumatic valve is opened, third
Hand rotary valve is opened and pressure is kept to stablize, and pressure cuts off air feed after stablizing, third Pneumatic valve is closed and pressure maintaining, at the appointed time
Pressure decline is no more than specified value, and the 4th pressure sensor measures pressure change, and result is fed back to Industrial PC Computer, Industrial PC
Machine determines whether neutral position air-tightness meets the requirements according to decision condition；
D. charge position sets air tightness test, drives altitude valve swing rod to set in charge position by servo motor, to altitude valve
It fills wind and pressure is kept to stablize, the second electric Proportion valve adjusts compressed air pressure, and third solenoid valve is opened, and third Pneumatic valve is beaten
It opens, third hand rotary valve is opened, and pressure cuts off air feed after stablizing, third Pneumatic valve is closed and pressure maintaining, at the appointed time under pressure
Drop is no more than specified value, and the 4th pressure sensor measures pressure change, and result is fed back to Industrial PC Computer, Industrial PC Computer according to
Decision condition determines that charge position sets whether air-tightness meets the requirements；
E. air draft position air tightness test drives altitude valve swing rod to be in air draft position, to altitude valve by servo motor
It fills wind and pressure is kept to stablize, the second electric Proportion valve adjusts compressed air pressure, and third solenoid valve is opened, and third Pneumatic valve is beaten
It opens, third hand rotary valve is opened, and pressure is kept to stablize, and pressure cuts off air feed, third Pneumatic valve and pressure maintaining after stablizing, in regulation
Interior pressure decline is no more than specified value, and the 4th pressure sensor measures pressure change, and result is fed back to Industrial PC Computer, work
Industry PC machine determines whether air draft position air-tightness meets the requirements according to decision condition；
F. servo motor drives altitude valve swing rod, so that altitude valve swing rod is in throttling charge position and sets；
G. wind is filled to altitude valve by third interface, the second electric Proportion valve adjusts compressed air pressure, third solenoid valve
It opens, third Pneumatic valve is opened, and third hand rotary valve is opened, and the 7th Pneumatic valve is opened, and the 8th Pneumatic valve is closed, and passes through 80L cylinder
Rate of pressure change judge that it fills wind energy power；Air feed is cut off, third Pneumatic valve is closed, and the 8th Pneumatic valve is opened, and empties 80L wind
Pressure in cylinder is to normality；
H. throttling air draft, quick abundant, quick air draft pass through servo motor respectively and drive altitude valve swing rod to corresponding positions
It sets, then repeatedly step g；
I. system is back to original state after the completion of detecting, and servo motor driving altitude valve swing rod is back to zero point, testing tube
Road gas source cuts off and is vented, and the second electric Proportion valve pressure is set as 0, third solenoid valve vents.
A kind of application method of high-accuracy multifunctional railcar brake system test platform, the method include:
A. it is installed by test specimen, tested ball valve air inlet is connect with the 4th interface on valve plate, ball valve outlet and the 5th
Interface connection.
B. signal detection is tested, and ball valve initial position: close stance connects electric connector, and ball valve is threaded to open position, is examined
Output signal is surveyed, then ball valve is threaded to closed position, detects output signal, above-mentioned movement is repeated 3 times；
C. air-tight test, ball valve is in the closed position, is passed through compressed air, third electric Proportion valve to ball valve inlet end
Specified pressure is opened and is adjusted to, the 4th solenoid valve is opened, the 4th Pneumatic valve is opened, the 4th hand rotary valve is opened, after the completion of being passed through
The 4th Pneumatic valve is closed, ball valve is threaded to open position by d. after pressure stabilisation, is passed through compressed air, third to ball valve inlet end
Specified pressure is opened and be adjusted to electric Proportion valve, and the 4th solenoid valve is opened, the 4th Pneumatic valve is opened, the 4th hand rotary valve is opened,
The 4th Pneumatic valve, leakage rate≤5KPa after pressure stabilisation are closed after the completion of being passed through.
E. system is back to original state after the completion of detecting, and test pipeline gas source cuts off and is vented, third electric Proportion valve
Pressure is set as 0, the 4th solenoid valve vents.
A kind of application method of high-accuracy multifunctional railcar brake system test platform, the method include:
A. the pressure switch of tape test is connect with first interface；
B. air-tight test adjusts output pressure, and the first electric Proportion valve is opened, second solenoid valve is opened, the first gas control
Valve is opened, first-hand rotary valve is opened, and the first Pneumatic valve pressure maintaining pressure drop≤5KPa is closed after gas transmission；
C. prolong clossing pressure in test, adjust the first electric Proportion valve, pressure switch is detected by second pressure sensor
Upper operating point air pressure；
D. downward cracking pressure is tested, the first electric Proportion valve is adjusted, pressure switch is detected by second pressure sensor
The air pressure of lower operating point；
E. system is back to original state after the completion of detecting, and test pipeline gas source cuts off and is vented, the first electric Proportion valve
Pressure is set as 0, second solenoid valve exhaust.
A kind of application method of high-accuracy multifunctional railcar brake system test platform, the method include:
A. safety valve to be tested is installed on second interface,
B. open third ball valve switch, start to test by start button, at this time the first electric Proportion valve, the second Pneumatic valve,
Second-hand's rotary valve is in the open state, when portion of air is discharged safety valve, measures pressure at expulsion at this time, pressure at expulsion
It will be compared with reference pressure value, and show whether the pressure value will be qualified by the display of Industrial PC Computer；
C. safety valve continues to be vented, until safety valve stops exhaust, measures closing pressure at this time, closing pressure will be with mark
Quasi- pressure value compares, and shows whether the pressure value is qualified by the display of Industrial PC Computer；
D. system is back to original state after the completion of detecting, and test pipeline gas source cuts off and is vented, the first electric Proportion valve
Pressure is set as 0, opens the 4th ball valve and is exhausted.
Therefore, the present invention promotes the measuring accuracy of brake valve, while overall process uses process control, is finished by test specimen connection
Influence of the human factor to measurement result is avoided to greatest extent, meets railcar braking system while promoting working efficiency
Maintenance requirement, it is simple and reasonable for structure.
Detailed description of the invention
Attached drawing 1 is a kind of structural schematic diagram of the invention；
Attached drawing 2 is schematic diagram of internal structure of the invention；
Attached drawing 3 is system schematic of the invention；
Attached drawing 4 is gas circuit schematic diagram of the invention.
Components, position and number in figure: rack 1, altitude valve test fixture 2, valve plate 3, first interface 4, second interface
5, third interface 6, the 4th interface 7, the 5th interface 8, the 6th interface 9, second pressure sensor 10, the 4th pressure sensor 11,
5th pressure sensor 12, the 6th pressure sensor 13, the 7th pressure sensor 14, third ball valve 15, first-hand rotary valve 16,
One Pneumatic valve 17, second solenoid valve 18, the first solenoid valve 19, the first electric Proportion valve 20, third pressure sensor 21, the 4th ball
Valve 22, second-hand's rotary valve 23, the second Pneumatic valve 24, third hand rotary valve 25, third Pneumatic valve 26, the 27, second electricity of third solenoid valve
Gas proportioning valve 28, the 4th hand rotary valve 29, the 4th Pneumatic valve 30, the 4th solenoid valve 31, third electric Proportion valve 32, the 5th Pneumatic valve
33, the 7th Pneumatic valve 34, the 8th pressure sensor 35, the 6th Pneumatic valve 36, the 8th Pneumatic valve 37, the 5th ball valve 38, check valve
39, the 9th Pneumatic valve 40, the tenth Pneumatic valve 41, the 9th pressure sensor 42, the 11st Pneumatic valve 43, first pressure sensor
44, filter 45, the second ball valve 46, safety valve 47, filtering bigeminy part 48, the first ball valve 49.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment: a kind of high-accuracy multifunctional railcar brake system test platform of this example, as shown in Figure 1, Figure 2, Fig. 3, examination
Testing platform includes organic frame 1, and Industrial PC Computer is equipped in rack, and Industrial PC Computer passes through connection data collecting card, printer, ether
Network switch, Ethernet switch connect servomotor controller, solenoid valve, pressure sensor, electrical ratio by programmable PLC
Example valve, pressure display table, servomotor controller are connected with servo motor, and solenoid valve connects Pneumatic valve, and the outer surface of rack is set
There are an altitude valve test fixture 2, valve plate 3, valve plate is equipped with first interface 4, second interface 5, third interface 6, the 4th interface 7, the
Five interfaces 8, the 6th interface 9, each interface by gas circuit be connected to solenoid valve, pressure sensor, electric Proportion valve, pressure display table,
Pneumatic valve.
Such as Fig. 4, valve plate 3 connects second pressure sensor 10, the 4th pressure sensor 11, the 5th pressure sensor 12, the
Six pressure sensors 13, the 7th pressure sensor 14, third ball valve 15；Second pressure sensor 10 is sequentially connected first-hand rotary valve
16, the first Pneumatic valve 17, second solenoid valve 18, the first solenoid valve 19, the first electric Proportion valve 20；Third ball valve 15 is separately connected
There are third pressure sensor 21, the 4th ball valve 22, second-hand's rotary valve 23, second-hand's rotary valve passes through the second Pneumatic valve 24 connection first
Electric Proportion valve；4th pressure sensor 11 is sequentially connected third hand rotary valve 25, third Pneumatic valve 26, third solenoid valve 27,
Two electric Proportion valves 28；5th pressure sensor 12 is sequentially connected the 4th hand rotary valve 29, the 4th Pneumatic valve 30, the 4th solenoid valve
31, third electric Proportion valve 32；6th pressure sensor 13 is separately connected the 5th Pneumatic valve 33, the 7th Pneumatic valve 34, the 5th gas
Control valve is sequentially connected the 8th pressure sensor 35, the 6th Pneumatic valve 36, and the 7th Pneumatic valve 34 is separately connected the 8th Pneumatic valve 37, the
Five ball valves 38, check valve 39；7th pressure sensor 14 is separately connected the 9th Pneumatic valve 40, the tenth Pneumatic valve 41, the 9th gas control
Valve connects check valve, and the tenth Pneumatic valve is sequentially connected the 9th pressure sensor 42, the 11st Pneumatic valve 43；Each Pneumatic valve connects
It is connected to a solenoid valve, solenoid valve, the first electric Proportion valve 20, the second electric Proportion valve 28, third electric Proportion valve 32 are in parallel
It is connected with first pressure sensor 44, first pressure sensor is connected with filter 45, the second ball valve 46, safety valve 47, filtering
Bigeminy part 48, the first ball valve 49.Air circuit connection has gas boosting valve.
A kind of application method of high-accuracy multifunctional railcar brake system test platform, tests altitude valve, such as
Fig. 4 the steps include:
A. altitude valve tests piping connection, and railcar altitude valve V interface is connect with third interface 6, L interface and the
Five interfaces 8 connect, and altitude valve is fixed on altitude valve test fixture 2 after piping connection；
B. the leakproofness of connecting line is checked, the second electric Proportion valve 28 adjusts compressed air pressure, third solenoid valve 27
It opens, third Pneumatic valve 26 is opened, and third hand rotary valve 25 is opened, and the compressed air of specified pressure is filled with to altitude valve, and stablize
For a period of time, testing each interface has No leakage；
C. test height valve neutral position air-tightness drives altitude valve swing rod to be in neutral position by servo motor, to
Altitude valve fills wind, and the second electric Proportion valve 28 adjusts compressed air pressure, and third solenoid valve 27 is opened, and third Pneumatic valve 26 is beaten
It opens, third hand rotary valve 25 is opened and pressure is kept to stablize, and pressure cuts off air feed after stablizing, third Pneumatic valve 26 is closed and pressure maintaining,
Pressure decline at the appointed time is no more than specified value, and the 4th pressure sensor 11 measures pressure change, and result is fed back to
Industrial PC Computer, Industrial PC Computer determine whether neutral position air-tightness meets the requirements according to decision condition；
D. charge position sets air tightness test, drives altitude valve swing rod to set in charge position by servo motor, to altitude valve
It fills wind and pressure is kept to stablize, the second electric Proportion valve 28 adjusts compressed air pressure, and third solenoid valve 27 is opened, third gas control
Valve 26 is opened, and third hand rotary valve 25 is opened, and pressure cuts off air feed after stablizing, third Pneumatic valve 26 is closed and pressure maintaining, in regulation
Interior pressure decline is no more than specified value, and the 4th pressure sensor 11 measures pressure change, and result is fed back to Industrial PC Computer,
Industrial PC Computer determines that charge position sets whether air-tightness meets the requirements according to decision condition；
E. air draft position air tightness test drives altitude valve swing rod to be in air draft position, to altitude valve by servo motor
It fills wind and pressure is kept to stablize, the second electric Proportion valve 28 adjusts compressed air pressure, and third solenoid valve 27 is opened, third gas control
Valve 26 is opened, and third hand rotary valve 25 is opened, and pressure is kept to stablize, and pressure cuts off air feed after stablizing, and third Pneumatic valve 26 is simultaneously protected
Pressure, at the appointed time pressure decline are no more than specified value, and the 4th pressure sensor 11 measures pressure change, and result is fed back
To Industrial PC Computer, Industrial PC Computer determines whether air draft position air-tightness meets the requirements according to decision condition；
F. servo motor drives altitude valve swing rod, so that altitude valve swing rod is in throttling charge position and sets；
G. wind is filled to altitude valve by third interface 6, the second electric Proportion valve 28 adjusts compressed air pressure, third electromagnetism
Valve 27 is opened, and third Pneumatic valve 26 is opened, and third hand rotary valve 25 is opened, and the 7th Pneumatic valve 34 is opened, and the 8th Pneumatic valve 37 is closed,
Judge that it fills wind energy power by the rate of pressure change of 80L cylinder；Air feed is cut off, third Pneumatic valve 26 is closed, the 8th Pneumatic valve
37 open, the pressure in emptying 80L cylinder to normality；
H. throttling air draft, quick abundant, quick air draft pass through servo motor respectively and drive altitude valve swing rod to corresponding positions
It sets, then repeatedly step g；
I. system is back to original state after the completion of detecting, and servo motor driving altitude valve swing rod is back to zero point, testing tube
Road gas source cuts off and is vented, and 28 pressure of the second electric Proportion valve is set as 0, and third solenoid valve 27 is vented.
A kind of application method of high-accuracy multifunctional railcar brake system test platform tests electrification ball valve,
Such as Fig. 4, the steps include:
A. it is installed by test specimen, tested ball valve air inlet is connect with the 4th interface 7 on valve plate 3, ball valve outlet and the
The connection of five interfaces 8.
B. signal detection is tested, and ball valve initial position: close stance connects electric connector, and ball valve is threaded to open position, is examined
Output signal is surveyed, then ball valve is threaded to closed position, detects output signal, above-mentioned movement is repeated 3 times；
C. air-tight test, ball valve is in the closed position, is passed through 500KPa compressed air to ball valve inlet end, third is electrical
Specified pressure is opened and be adjusted to proportioning valve 32, and the 4th solenoid valve 31 is opened, the 4th Pneumatic valve 30 is opened, the 4th hand rotary valve 29 is beaten
It opens, closes the 4th Pneumatic valve, 30min internal leakage≤5KPa after pressure stabilisation after the completion of being passed through；
D. ball valve is threaded to open position, is passed through 500KPa compressed air, third electric Proportion valve 32 to ball valve inlet end
Specified pressure is opened and is adjusted to, the 4th solenoid valve 31 is opened, the 4th Pneumatic valve 30 is opened, the 4th hand rotary valve 29 is opened, and is passed through
The 4th Pneumatic valve, 30min internal leakage≤5KPa after pressure stabilisation are closed after the completion；
E. system is back to original state after the completion of detecting, and test pipeline gas source cuts off and is vented, third electric Proportion valve
32 pressure are set as 0, the exhaust of the 4th solenoid valve 31.
A kind of application method of high-accuracy multifunctional railcar brake system test platform, tests pressure switch,
Such as Fig. 4, the steps include:
A. the pressure switch of tape test is connect with first interface 4；
B. air-tight test adjusts output pressure 800KPa, and the first electric Proportion valve 20 is opened, second solenoid valve 18 is beaten
Open, the first Pneumatic valve 17 open, first-hand rotary valve 16 open, closed after gas transmission the first Pneumatic valve pressure maintaining 60s internal drop≤
5KPa；
C. prolong clossing pressure in test, the first electric Proportion valve 20 is adjusted, so that pressure is with the speed of 50KPa/s by 0KPa
800KPa is increased to, operating point air pressure in pressure switch is detected by second pressure sensor 10；
D. downward cracking pressure is tested, adjust the first electric Proportion valve 20 makes pressure by 800KPa with the speed of 50KPa/s
It is down to 0KPa, operating point air pressure under pressure switch is detected by second pressure sensor 10；
E. system is back to original state after the completion of detecting, and test pipeline gas source cuts off and is vented, the first electric Proportion valve
20 pressure are set as 0, and second solenoid valve 18 is vented.
A kind of application method of high-accuracy multifunctional railcar brake system test platform, detects safety valve, such as
Fig. 4 the steps include:
A. safety valve to be tested is installed on second interface 5；
B. it opens third ball valve 15 to switch, starts to test by start button, at this time the first electric Proportion valve 20, the second gas control
Valve 24, second-hand's rotary valve 23 are in the open state, when portion of air is discharged safety valve 47, measure exhaust pressure at this time
Power, pressure at expulsion will be compared with reference pressure value, show whether the pressure value is qualified by the display of Industrial PC Computer；
C. safety valve 47 continues to be vented, until safety valve stops exhaust, measures closing pressure at this time, and closing pressure will be with
Reference pressure value compares, and shows whether the pressure value is qualified by the display of Industrial PC Computer；
D. system is back to original state after the completion of detecting, and test pipeline gas source cuts off and is vented, the first electric Proportion valve
20 pressure are set as 0, open the 4th ball valve 22 and are exhausted.
Above is only a specific embodiment of the present invention, but structure feature of the invention is not limited thereto, Ren Heben
Within the field of the present invention, made changes or modifications all cover within the scope of the patent of the present invention the technical staff in field.
Claims (4)
1. a kind of application method of high-accuracy multifunctional railcar brake system test platform, it is characterised in that: the test
Platform includes organic frame (1), and Industrial PC Computer is equipped in rack, and Industrial PC Computer passes through connection data collecting card, printer, ether
Network switch, Ethernet switch connect servomotor controller, solenoid valve, pressure sensor, electrical ratio by programmable PLC
Example valve, pressure display table, servomotor controller are connected with servo motor, and solenoid valve connects Pneumatic valve, and the outer surface of rack is set
There are an altitude valve test fixture (2), valve plate (3), valve plate is equipped with first interface (4), second interface (5), third interface (6), the
Four interfaces (7), the 5th interface (8), the 6th interface (9), each interface are connected to solenoid valve, pressure sensor, electrical ratio by gas circuit
Example valve, pressure display table, Pneumatic valve；The valve plate (3) connects second pressure sensor (10), the 4th pressure sensor
(11), the 5th pressure sensor (12), the 6th pressure sensor (13), the 7th pressure sensor (14), third ball valve (15)；The
Two pressure sensors (10) are sequentially connected first-hand rotary valve (16), the first Pneumatic valve (17), second solenoid valve (18), the first electromagnetism
Valve (19), the first electric Proportion valve (20)；Third ball valve (15) is connected separately with third pressure sensor (21), the 4th ball valve
(22), second-hand's rotary valve (23), second-hand's rotary valve connect the first electric Proportion valve by the second Pneumatic valve (24)；4th pressure passes
Sensor (11) is sequentially connected third hand rotary valve (25), third Pneumatic valve (26), third solenoid valve (27), the second electric Proportion valve
(28)；5th pressure sensor (12) be sequentially connected the 4th hand rotary valve (29), the 4th Pneumatic valve (30), the 4th solenoid valve (31),
Third electric Proportion valve (32)；6th pressure sensor (13) is separately connected the 5th Pneumatic valve (33), the 7th Pneumatic valve (34), the
Five Pneumatic valves are sequentially connected the 8th pressure sensor (35), the 6th Pneumatic valve (36), and the 7th Pneumatic valve (34) is separately connected the 8th
Pneumatic valve (37), the 5th ball valve (38), check valve (39)；7th pressure sensor (14) be separately connected the 9th Pneumatic valve (40),
Tenth Pneumatic valve (41), the 9th Pneumatic valve connect check valve, and the tenth Pneumatic valve is sequentially connected the 9th pressure sensor (42), the tenth
One Pneumatic valve (43)；Each Pneumatic valve is connected with a solenoid valve, and solenoid valve, the first electric Proportion valve (20), second are electrically
Proportioning valve (28), third electric Proportion valve (32) are connected in parallel to first pressure sensor (44), first pressure sensor connection
There are filter (45), the second ball valve (46), safety valve (47), filtering bigeminy part (48), the first ball valve (49)；Air circuit connection has gas
Body pressure charging valve；
The method includes:
A. altitude valve tests piping connection, railcar is connect with altitude valve V interface with third interface (6), L interface and the 5th
Interface (8) connects, and altitude valve is fixed on altitude valve test fixture (2) after piping connection；
B. the leakproofness of connecting line is checked, the second electric Proportion valve (28) adjusts compressed air pressure, third solenoid valve (27)
It opens, third Pneumatic valve (26) is opened, and third hand rotary valve (25) is opened, the compressed air of specified pressure is filled with to altitude valve, and
Stablize a period of time, testing each interface has No leakage；
C. test height valve neutral position air-tightness drives altitude valve swing rod to be in neutral position, Xiang Gaodu by servo motor
Valve fills wind, and the second electric Proportion valve (28) adjusts compressed air pressure, and third solenoid valve (27) is opened, and third Pneumatic valve (26) is beaten
It opens, third hand rotary valve (25) is opened and pressure is kept to stablize, and pressure cuts off air feed after stablizing, and third Pneumatic valve (26) is closed and protected
Pressure, at the appointed time pressure decline are no more than specified value, and the 4th pressure sensor (11) measures pressure change, and result is anti-
It is fed to Industrial PC Computer, Industrial PC Computer determines whether neutral position air-tightness meets the requirements according to decision condition；
D. charge position sets air tightness test, drives altitude valve swing rod to set in charge position by servo motor, fills wind to altitude valve
And pressure is kept to stablize, the second electric Proportion valve (28) adjusts compressed air pressure, and third solenoid valve (27) is opened, third gas control
Valve (26) is opened, and third hand rotary valve (25) is opened, and pressure cuts off air feed after stablizing, third Pneumatic valve (26) is closed and pressure maintaining,
Pressure decline is no more than specified value in stipulated time, and the 4th pressure sensor (11) measures pressure change, and result is fed back to
Industrial PC Computer, Industrial PC Computer determine that charge position sets whether air-tightness meets the requirements according to decision condition；
E. air draft position air tightness test drives altitude valve swing rod to be in air draft position, fills wind to altitude valve by servo motor
And pressure is kept to stablize, the second electric Proportion valve (28) adjusts compressed air pressure, and third solenoid valve (27) is opened, third gas control
Valve (26) is opened, and third hand rotary valve (25) is opened, and pressure is kept to stablize, and pressure cuts off air feed, third Pneumatic valve after stablizing
(26) and pressure maintaining, at the appointed time pressure decline are no more than specified value, and the 4th pressure sensor (11) measures pressure change, and
Result is fed back into Industrial PC Computer, Industrial PC Computer determines whether air draft position air-tightness meets the requirements according to decision condition；
F. servo motor drives altitude valve swing rod, so that altitude valve swing rod is in throttling charge position and sets；
G. wind is filled to altitude valve by third interface (6), the second electric Proportion valve (28) adjusts compressed air pressure, third electromagnetism
Valve (27) is opened, and third Pneumatic valve (26) is opened, and third hand rotary valve (25) is opened, and the 7th Pneumatic valve (34) is opened, the 8th gas control
Valve (37) is closed, and judges that it fills wind energy power by the rate of pressure change of 80L cylinder；Air feed is cut off, third Pneumatic valve (26) closes
It closes, the 8th Pneumatic valve (37) is opened, the pressure in emptying 80L cylinder to normality；
H. throttling air draft, quick abundant, quick air draft pass through servo motor respectively and drive altitude valve swing rod to corresponding position,
Then step g is repeated；
I. system is back to original state after the completion of detecting, and servo motor driving altitude valve swing rod is back to zero point, tests pipeline gas
Source cuts off and is vented, and the second electric Proportion valve (28) pressure is set as 0, third solenoid valve (27) exhaust.
2. a kind of application method of high-accuracy multifunctional railcar brake system test platform, it is characterised in that: the test
Platform includes organic frame (1), and Industrial PC Computer is equipped in rack, and Industrial PC Computer passes through connection data collecting card, printer, ether
Network switch, Ethernet switch connect servomotor controller, solenoid valve, pressure sensor, electrical ratio by programmable PLC
Example valve, pressure display table, servomotor controller are connected with servo motor, and solenoid valve connects Pneumatic valve, and the outer surface of rack is set
There are an altitude valve test fixture (2), valve plate (3), valve plate is equipped with first interface (4), second interface (5), third interface (6), the
Four interfaces (7), the 5th interface (8), the 6th interface (9), each interface are connected to solenoid valve, pressure sensor, electrical ratio by gas circuit
Example valve, pressure display table, Pneumatic valve；The valve plate (3) connects second pressure sensor (10), the 4th pressure sensor
(11), the 5th pressure sensor (12), the 6th pressure sensor (13), the 7th pressure sensor (14), third ball valve (15)；The
Two pressure sensors (10) are sequentially connected first-hand rotary valve (16), the first Pneumatic valve (17), second solenoid valve (18), the first electromagnetism
Valve (19), the first electric Proportion valve (20)；Third ball valve (15) is connected separately with third pressure sensor (21), the 4th ball valve
(22), second-hand's rotary valve (23), second-hand's rotary valve connect the first electric Proportion valve by the second Pneumatic valve (24)；4th pressure passes
Sensor (11) is sequentially connected third hand rotary valve (25), third Pneumatic valve (26), third solenoid valve (27), the second electric Proportion valve
(28)；5th pressure sensor (12) be sequentially connected the 4th hand rotary valve (29), the 4th Pneumatic valve (30), the 4th solenoid valve (31),
Third electric Proportion valve (32)；6th pressure sensor (13) is separately connected the 5th Pneumatic valve (33), the 7th Pneumatic valve (34), the
Five Pneumatic valves are sequentially connected the 8th pressure sensor (35), the 6th Pneumatic valve (36), and the 7th Pneumatic valve (34) is separately connected the 8th
Pneumatic valve (37), the 5th ball valve (38), check valve (39)；7th pressure sensor (14) be separately connected the 9th Pneumatic valve (40),
Tenth Pneumatic valve (41), the 9th Pneumatic valve connect check valve, and the tenth Pneumatic valve is sequentially connected the 9th pressure sensor (42), the tenth
One Pneumatic valve (43)；Each Pneumatic valve is connected with a solenoid valve, and solenoid valve, the first electric Proportion valve (20), second are electrically
Proportioning valve (28), third electric Proportion valve (32) are connected in parallel to first pressure sensor (44), first pressure sensor connection
There are filter (45), the second ball valve (46), safety valve (47), filtering bigeminy part (48), the first ball valve (49)；Air circuit connection has gas
Body pressure charging valve；
The method includes:
A. it is installed by test specimen, tested ball valve air inlet is connect with the 4th interface (7) on valve plate (3), ball valve outlet and the
Five interfaces (8) connection；
B. signal detection is tested, and ball valve initial position: close stance connects electric connector, and ball valve is threaded to open position, is detected defeated
Signal out, then ball valve is threaded to closed position, output signal is detected, above-mentioned movement is repeated 3 times；
C. air-tight test, ball valve is in the closed position, is passed through compressed air, third electric Proportion valve (32) to ball valve inlet end
Specified pressure is opened and is adjusted to, the 4th solenoid valve (31) is opened, the 4th Pneumatic valve (30) is opened, the 4th hand rotary valve (29) is beaten
It opens, closes the 4th Pneumatic valve, leakage rate≤5KPa after pressure stabilisation after the completion of being passed through；
D. ball valve is threaded to open position, is passed through compressed air to ball valve inlet end, third electric Proportion valve (32) is opened and adjusted
Section is to specified pressure, and the 4th solenoid valve (31) is opened, the 4th Pneumatic valve (30) is opened, the 4th hand rotary valve (29) is opened, and has been passed through
At the 4th Pneumatic valve of rear closing, leakage rate≤5KPa after pressure stabilisation；
E. system is back to original state after the completion of detecting, and test pipeline gas source cuts off and is vented, third electric Proportion valve (32)
Pressure is set as 0, the exhaust of the 4th solenoid valve (31).
3. a kind of application method of high-accuracy multifunctional railcar brake system test platform, it is characterised in that: the test
Platform includes organic frame (1), and Industrial PC Computer is equipped in rack, and Industrial PC Computer passes through connection data collecting card, printer, ether
Network switch, Ethernet switch connect servomotor controller, solenoid valve, pressure sensor, electrical ratio by programmable PLC
Example valve, pressure display table, servomotor controller are connected with servo motor, and solenoid valve connects Pneumatic valve, and the outer surface of rack is set
There are an altitude valve test fixture (2), valve plate (3), valve plate is equipped with first interface (4), second interface (5), third interface (6), the
Four interfaces (7), the 5th interface (8), the 6th interface (9), each interface are connected to solenoid valve, pressure sensor, electrical ratio by gas circuit
Example valve, pressure display table, Pneumatic valve；The valve plate (3) connects second pressure sensor (10), the 4th pressure sensor
(11), the 5th pressure sensor (12), the 6th pressure sensor (13), the 7th pressure sensor (14), third ball valve (15)；The
Two pressure sensors (10) are sequentially connected first-hand rotary valve (16), the first Pneumatic valve (17), second solenoid valve (18), the first electromagnetism
Valve (19), the first electric Proportion valve (20)；Third ball valve (15) is connected separately with third pressure sensor (21), the 4th ball valve
(22), second-hand's rotary valve (23), second-hand's rotary valve connect the first electric Proportion valve by the second Pneumatic valve (24)；4th pressure passes
Sensor (11) is sequentially connected third hand rotary valve (25), third Pneumatic valve (26), third solenoid valve (27), the second electric Proportion valve
(28)；5th pressure sensor (12) be sequentially connected the 4th hand rotary valve (29), the 4th Pneumatic valve (30), the 4th solenoid valve (31),
Third electric Proportion valve (32)；6th pressure sensor (13) is separately connected the 5th Pneumatic valve (33), the 7th Pneumatic valve (34), the
Five Pneumatic valves are sequentially connected the 8th pressure sensor (35), the 6th Pneumatic valve (36), and the 7th Pneumatic valve (34) is separately connected the 8th
Pneumatic valve (37), the 5th ball valve (38), check valve (39)；7th pressure sensor (14) be separately connected the 9th Pneumatic valve (40),
Tenth Pneumatic valve (41), the 9th Pneumatic valve connect check valve, and the tenth Pneumatic valve is sequentially connected the 9th pressure sensor (42), the tenth
One Pneumatic valve (43)；Each Pneumatic valve is connected with a solenoid valve, and solenoid valve, the first electric Proportion valve (20), second are electrically
Proportioning valve (28), third electric Proportion valve (32) are connected in parallel to first pressure sensor (44), first pressure sensor connection
There are filter (45), the second ball valve (46), safety valve (47), filtering bigeminy part (48), the first ball valve (49)；Air circuit connection has gas
Body pressure charging valve；
The method includes:
A. the pressure switch of tape test is connect with first interface (4)；
B. air-tight test adjusts output pressure, the first electric Proportion valve (20) opening, second solenoid valve (18) opening, first
Pneumatic valve (17) is opened, first-hand rotary valve (16) is opened, and the first Pneumatic valve pressure maintaining pressure drop≤5KPa is closed after gas transmission；
C. prolong clossing pressure in test, adjust the first electric Proportion valve (20), detect pressure by second pressure sensor (10)
Operating point air pressure on switch；
D. downward cracking pressure is tested, is adjusted the first electric Proportion valve (20), detects pressure by second pressure sensor (10)
Switch lower operating point air pressure；
E. system is back to original state after the completion of detecting, and test pipeline gas source cuts off and is vented, the first electric Proportion valve (20)
Pressure is set as 0, second solenoid valve (18) exhaust.
4. a kind of application method of high-accuracy multifunctional railcar brake system test platform, it is characterised in that: the test
Platform includes organic frame (1), and Industrial PC Computer is equipped in rack, and Industrial PC Computer passes through connection data collecting card, printer, ether
Network switch, Ethernet switch connect servomotor controller, solenoid valve, pressure sensor, electrical ratio by programmable PLC
Example valve, pressure display table, servomotor controller are connected with servo motor, and solenoid valve connects Pneumatic valve, and the outer surface of rack is set
There are an altitude valve test fixture (2), valve plate (3), valve plate is equipped with first interface (4), second interface (5), third interface (6), the
Four interfaces (7), the 5th interface (8), the 6th interface (9), each interface are connected to solenoid valve, pressure sensor, electrical ratio by gas circuit
Example valve, pressure display table, Pneumatic valve；The valve plate (3) connects second pressure sensor (10), the 4th pressure sensor
(11), the 5th pressure sensor (12), the 6th pressure sensor (13), the 7th pressure sensor (14), third ball valve (15)；The
Two pressure sensors (10) are sequentially connected first-hand rotary valve (16), the first Pneumatic valve (17), second solenoid valve (18), the first electromagnetism
Valve (19), the first electric Proportion valve (20)；Third ball valve (15) is connected separately with third pressure sensor (21), the 4th ball valve
(22), second-hand's rotary valve (23), second-hand's rotary valve connect the first electric Proportion valve by the second Pneumatic valve (24)；4th pressure passes
Sensor (11) is sequentially connected third hand rotary valve (25), third Pneumatic valve (26), third solenoid valve (27), the second electric Proportion valve
(28)；5th pressure sensor (12) be sequentially connected the 4th hand rotary valve (29), the 4th Pneumatic valve (30), the 4th solenoid valve (31),
Third electric Proportion valve (32)；6th pressure sensor (13) is separately connected the 5th Pneumatic valve (33), the 7th Pneumatic valve (34), the
Five Pneumatic valves are sequentially connected the 8th pressure sensor (35), the 6th Pneumatic valve (36), and the 7th Pneumatic valve (34) is separately connected the 8th
Pneumatic valve (37), the 5th ball valve (38), check valve (39)；7th pressure sensor (14) be separately connected the 9th Pneumatic valve (40),
Tenth Pneumatic valve (41), the 9th Pneumatic valve connect check valve, and the tenth Pneumatic valve is sequentially connected the 9th pressure sensor (42), the tenth
One Pneumatic valve (43)；Each Pneumatic valve is connected with a solenoid valve, and solenoid valve, the first electric Proportion valve (20), second are electrically
Proportioning valve (28), third electric Proportion valve (32) are connected in parallel to first pressure sensor (44), first pressure sensor connection
There are filter (45), the second ball valve (46), safety valve (47), filtering bigeminy part (48), the first ball valve (49)；Air circuit connection has gas
Body pressure charging valve；
The method includes:
A. safety valve to be tested is installed on second interface (5)；
B. third ball valve (15) switch is opened, starts to test by start button, at this time the first electric Proportion valve (20), the second gas control
Valve (24), second-hand's rotary valve (23) are in the open state, when portion of air is discharged safety valve (47), measure row at this time
Atmospheric pressure, pressure at expulsion will be compared with reference pressure value, show whether the pressure value closes by the display of Industrial PC Computer
Lattice；
C. safety valve (47) continues to be vented, until safety valve stops exhaust, measures closing pressure at this time, closing pressure will be with mark
Quasi- pressure value compares, and shows whether the pressure value is qualified by the display of Industrial PC Computer；
D. system is back to original state after the completion of detecting, and test pipeline gas source cuts off and is vented, the first electric Proportion valve (20)
Pressure is set as 0, opens the 4th ball valve (22) and is exhausted.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443808B (en) * | 2018-09-30 | 2020-10-02 | 同济大学 | Vehicle brake intelligent test system interface device |
| CN112229621A (en) * | 2019-07-15 | 2021-01-15 | 齐齐哈尔四达铁路设备有限责任公司 | Multi-valve test bed |
| CN111811810A (en) * | 2020-07-17 | 2020-10-23 | 中车青岛四方车辆研究所有限公司 | Performance test equipment of vehicle valve |
| CN112729719A (en) * | 2020-12-17 | 2021-04-30 | 中车长春轨道客车股份有限公司 | Railway passenger car pipeline pressure testing device |
| CN112985853B (en) * | 2021-04-16 | 2024-05-03 | 中国铁道科学研究院集团有限公司 | Pneumatic testing system for railway vehicle foundation brake product |
| CN115184052B (en) * | 2022-07-07 | 2023-04-07 | 哈尔滨市科佳通用机电股份有限公司 | Unit brake cylinder test bed function test device and test method |
| CN115615628A (en) * | 2022-10-28 | 2023-01-17 | 安徽江淮专用汽车有限公司 | Trailer braking system detection device |
| CN116448351B (en) * | 2023-06-14 | 2023-09-08 | 威海博胜气动液压有限公司 | Automatic test bench and test method for altitude valve |
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