CN107036829A - 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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- CN107036829A CN107036829A CN201610858636.9A CN201610858636A CN107036829A CN 107036829 A CN107036829 A CN 107036829A CN 201610858636 A CN201610858636 A CN 201610858636A CN 107036829 A CN107036829 A CN 107036829A
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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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- Valves And Accessory Devices For Braking Systems (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The present invention relates to a kind of brake system test platform, more particularly, to a kind of high-accuracy multifunctional railcar brake system test platform and its application method.The brake valve testing general utility functions that it is mainly present in solution prior art are relatively simple, and versatility is poor, can only be directed to specific valve, and intelligence degree is relatively low, the not high technical problem of integrated testability precision.The testing stand of the present invention includes organic frame, Industrial PC Computer is provided with frame, Industrial PC Computer connects data collecting card, printer, Ethernet switch, Ethernet switch connects servomotor controller by programmable PLC, magnetic valve, pressure sensor, electric Proportion valve, pressure display table, servomotor controller is connected with servomotor, magnetic valve connects Pneumatic valve, the outer surface of frame is provided with altitude valve test fixture, valve plate, valve plate is provided with six interfaces, each interface connects magnetic 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 platform, more particularly, to a kind of high-accuracy multifunctional railcar braking system
System testing stand and its application method.
Background technology
The important component of brakes in brake valve class railcar brakes, such as altitude valve are used to control air
Spring pressure and height of the carbody.When having between car body and bogie due to height change caused by compartment load-carrying, 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 ensure the pressure of air-channel system
No more than maximum permissible value.Ball valve and magnetic valve can control the break-make of gas circuit to realize the control for braking railcar.
The normal work of these braking valve members is to ensure 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.
The content of the invention
The present invention is to provide a kind of high-accuracy multifunctional railcar brake system test platform and its application method, and its is main
It is that the brake valve testing general utility functions solved present in prior art are relatively simple, versatility is poor, specific valve can only be directed to,
Intelligence degree is relatively low, the not high technical problem of integrated testability precision.
The above-mentioned technical problem of the present invention is mainly what is be addressed by following technical proposals：
The high-accuracy multifunctional railcar brake system test platform of the present invention, described testing stand is included in organic frame, frame
Provided with Industrial PC Computer, Industrial PC Computer passes through connection data collecting card, printer, Ethernet switch, Ethernet switch
Servomotor controller, magnetic valve, pressure sensor, electric Proportion valve, pressure display table, servo are connected by programmable PLC
Electric machine controller is connected with servomotor, and magnetic valve connects Pneumatic valve, and the outer surface of frame is provided with altitude valve test fixture, valve
Plate, valve plate is provided with first interface, second interface, the 3rd interface, the 4th interface, the 5th interface, the 6th interface, and each interface passes through
Gas circuit connection magnetic valve, pressure sensor, electric Proportion valve, pressure display table, Pneumatic valve.
Data collecting card is installed on inside Industrial PC Computer, and printer is connected to print test data, ether with Industrial PC
Network switch is connected programmable PLCs with Industrial PC Computer and programmable PLC and is connected with servomotor controller, Serve Motor Control
Device control servomotor action, servomotor is used to control altitude valve swing rod to act, and programmable PLC is connected with magnetic valve, is controlled
The gas path on-off of magnetic valve, solenoid valve block into control gas circuit control Pneumatic valve break-make.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 connected with electric Proportion valve, control
The pressure output of each test pipeline of system.Test pipe-line system is designed with 6 test interfaces altogether, for the different measurements by test specimen.
High-accuracy multifunctional railcar brake system test platform can complete the test of the related valve member of a variety of railcar brakes,
Test process automation degree is high, and data automatic data collection and can be printed.
Altitude valve swing rod is driven through servomotor completion, and servomotor can be according to the instruction of servomotor controller
Rotated, drive high-precision screw mandrel, the operating angle of swing rod is calculated by the move distance of swing rod and the length gauge of swing rod.Match somebody with somebody
Test interface and its corresponding pipeline are closed, the relativeness of altitude valve swing rod angle and deflation rate can be obtained, pass through song
Line is fitted, and is formed the swing rod angle and deflation rate figure of complete altitude valve, can more fully be detected by contrast standard figure
The combination property of altitude valve.
Testing stand provides 24V and 110V dc sources, the Combined Trials for coordinating powered valve class and gas circuit.Herein can be with
The test of a variety of magnetic valves is completed, includes the Motor ability and function of magnetic valve.
6th interface is spare interface, can be exchanged with the 5th interface.
Preferably, described valve plate connection second pressure sensor, the 4th pressure sensor, the 5th pressure sensor,
6th pressure sensor, the 7th pressure sensor, the 3rd ball valve；Second pressure sensor is sequentially connected first-hand rotary valve, first
Pneumatic valve, the second magnetic valve, the first magnetic valve, the first electric Proportion valve；3rd ball valve be connected to the 3rd 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 the 3rd hand rotary valve, the 3rd Pneumatic valve, the 3rd magnetic valve, the second electric Proportion valve；5th pressure sensor connects successively
Connect the 4th hand rotary valve, the 4th Pneumatic valve, the 4th magnetic valve, the 3rd electric Proportion valve；6th pressure sensor connects the 5th respectively
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 connects the 9th Pneumatic valve, the tenth Pneumatic valve respectively, 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
A magnetic valve is connected with, magnetic valve, the first electric Proportion valve, the second electric Proportion valve, the 3rd 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 measxurement is measured by air pressure probe, and measured value is fed back into industry by PLC and data collecting card
PC.Industrial PC optimizes filtering process to the pressure value gathered in the unit interval, obtains effective intermediate value as pressure now
Value.Time counting in test process is completed by PLC.Testing standard for different valves can be configured in Industrial PC,
Experiment terminate postindustrial PC can contrast standard value judge whether tested valve member qualified.
Preferably, described gas circuit is connected with gas boosting valve.The wind regime pressure generally 0.9MPa that testing stand is used,
When the Opening 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 has gas boosting valve, when wind regime pressure ratio is relatively low, can also meet the test to safety valve.
When wind regime pressure is 0.9Mpa, the test of 1.3Mpa safety valves can be completed.
A kind of application method of high-accuracy multifunctional railcar brake system test platform, described method includes：
A. the connection of altitude valve test pipeline, railcar is connected with altitude valve bottom valve V interfaces with the 3rd interface, L interface and the
Five interfaces are connected, and altitude valve is fixed on altitude valve test fixture by pipeline connection after finishing；
B. the sealing of connecting line is checked, the second electric Proportion valve regulation compressed air pressure, the 3rd magnetic valve is opened, the 3rd
Pneumatic valve is opened, and the 3rd hand rotary valve is opened, and the compressed air of specified pressure, and stable a period of time, test are filled with to altitude valve
Each interface has No leakage；
C. test height valve neutral position air-tightness, drives altitude valve swing rod to be in neutral position by servomotor, to height
Valve fills wind, and the second electric Proportion valve regulation compressed air pressure, the 3rd magnetic valve is opened, and the 3rd Pneumatic valve is opened, and the 3rd hand turns
Valve is opened and keeps pressure stability, and air feed is cut off after pressure stability, and the 3rd Pneumatic valve is closed and pressurize, at the appointed time pressure
Decline and be no more than setting, the 4th pressure sensor measurement pressure change, and result is fed back into Industrial PC Computer, Industrial PC Computer root
Judge whether neutral position air-tightness meets requirement according to decision condition；
D. charge position puts air tightness test, drives altitude valve swing rod to be put in charge position by servomotor, wind is filled to altitude valve
And pressure stability is kept, the second electric Proportion valve regulation compressed air pressure, the 3rd magnetic valve is opened, and the 3rd Pneumatic valve is opened,
3rd hand rotary valve is opened, and air feed is cut off after pressure stability, and the 3rd Pneumatic valve is closed and pressurize, and pressure declines not at the appointed time
More than setting, the 4th pressure sensor measurement pressure change, and result is fed back into Industrial PC Computer, Industrial PC Computer is according to judgement
Condition criterion charge position puts whether air-tightness meets requirement；
E. air draft position air tightness test, drives altitude valve swing rod to be in air draft position, wind is filled to altitude valve by servomotor
And pressure stability is kept, the second electric Proportion valve regulation compressed air pressure, the 3rd magnetic valve is opened, and the 3rd Pneumatic valve is opened,
3rd hand rotary valve is opened, and keeps cutting off air feed after pressure stability, pressure stability, the 3rd Pneumatic valve and pressurize, in the stipulated time
Interior pressure, which declines, is no more than setting, the 4th pressure sensor measurement pressure change, and result is fed back into Industrial PC Computer, industry
PC judges whether air draft position air-tightness meets requirement according to decision condition；
F. servomotor driving altitude valve swing rod, makes altitude valve swing rod be in throttling charge position and puts；
G. wind is filled to altitude valve by the 3rd interface, the second electric Proportion valve regulation compressed air pressure, the 3rd magnetic valve is opened,
3rd Pneumatic valve is opened, and the 3rd hand rotary valve is opened, and the 7th Pneumatic valve is opened, and the 8th Pneumatic valve is closed, and passes through the pressure of 80L reservoirs
Pace of change judges that it fills wind energy power；Air feed is cut off, the 3rd Pneumatic valve is closed, and the 8th Pneumatic valve is opened, in emptying 80L reservoirs
Pressure is to normality；
H. throttling air draft, quick abundant, quick air draft are respectively driven altitude valve swing rod to relevant position by servomotor,
Then repeat step g；
I. system is back to original state after the completion of detecting, servomotor 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 pressure is set as 0, the 3rd solenoid valve vents.
A kind of application method of high-accuracy multifunctional railcar brake system test platform, described method includes：
A. installed by test specimen, tested ball valve air inlet is connected with the 4th interface on valve plate, ball valve outlet and the 5th interface
Connection.
B. signal detection is tested, ball valve initial position：Close stance, connects electric connector, and ball valve is threaded into open position, inspection
Output signal is surveyed, then ball valve is threaded to closed position, output signal is detected, above-mentioned action is repeated 3 times；
C. air-tight test, ball valve is in the closed position, and compressed air is passed through to ball valve inlet end, and the 3rd electric Proportion valve is opened
And adjust to specified pressure, the 4th magnetic valve is opened, the 4th Pneumatic valve is opened, the 4th hand rotary valve is opened, and is closed after the completion of being passed through
Ball valve is threaded to open position by the 4th Pneumatic valve, d. after pressure stabilisation, and compressed air is passed through to ball valve inlet end, and the 3rd is electric
Proportioning valve is opened and adjusted to specified pressure, and the 4th magnetic valve is opened, the 4th Pneumatic valve is opened, the 4th hand rotary valve is opened, and is passed through
After the completion of close the 4th Pneumatic valve, leakage rate≤5KPa after pressure stabilisation.
E. system is back to original state after the completion of detecting, test pipeline source of the gas cuts off and is vented, the 3rd 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, described method includes：
A. the pressure switch of tape test is connected with first interface；
B. air-tight test, adjusts output pressure, and the first electric Proportion valve is opened, the second magnetic valve is opened, the first Pneumatic valve is beaten
Open, first-hand rotary valve is opened, the first Pneumatic valve pressurize pressure drop≤5KPa is closed in gas transmission after finishing；
C. prolong clossing pressure in test, adjust the first electric Proportion valve, work in pressure switch is detected by second pressure sensor
Make point air pressure；
D. downward Opening pressure is tested, the first electric Proportion valve is adjusted, work under pressure switch is detected by second pressure sensor
Make point air pressure；
E. system is back to original state after the completion of detecting, test pipeline source of the gas cuts off and is vented, the first electric Proportion valve pressure
It is set as 0, the second solenoid valve vents.
A kind of application method of high-accuracy multifunctional railcar brake system test platform, described method includes：
A. safety valve to be tested is installed on second interface,
B. the 3rd ball valve switch is opened, starts test by start button, now the first electric Proportion valve, the second Pneumatic valve, second
Hand rotary valve is in open mode, when safety valve discharges portion of air, determines pressure at expulsion now, and pressure at expulsion will be with
Reference pressure value is contrasted, and shows whether the pressure value is qualified by the display of Industrial PC Computer；
C. safety valve continues to be vented, until safety valve stops exhaust, determines closing presure now, closing presure will be with standard pressure
Force value is contrasted, 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, test pipeline source of the gas cuts off and is vented, the first electric Proportion valve pressure
It is set as 0, opens the 4th ball valve and be exhausted.
Therefore, the measuring accuracy of present invention lifting brake valve, while overall process uses programme-control, is finished by test specimen connection
Influence of the human factor to measurement result is avoided to greatest extent, and subway motor vehicle braking system is met while lifting operating efficiency
Service requirements, it is simple and reasonable for structure.
Brief description of the drawings
Accompanying drawing 1 is a kind of structural representation of the present invention；
Accompanying drawing 2 is the internal structure schematic diagram of the present invention；
Accompanying drawing 3 is the system schematic of the present invention；
Accompanying drawing 4 is the gas circuit schematic diagram of the present invention.
Parts, position and numbering in figure：Frame 1, altitude valve test fixture 2, valve plate 3, first interface 4, second interface
5th, the 3rd 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, the 3rd ball valve 15, first-hand rotary valve 16,
One Pneumatic valve 17, the second magnetic valve 18, the first magnetic valve 19, the first electric Proportion valve 20, the 3rd pressure sensor 21, the 4th ball
Valve 22, second-hand's rotary valve 23, the second Pneumatic valve 24, the 3rd hand rotary valve 25, the 3rd Pneumatic valve 26, the 3rd the 27, second electricity of magnetic valve
Gas proportioning valve 28, the 4th hand rotary valve 29, the 4th Pneumatic valve 30, the 4th magnetic valve 31, the 3rd electric Proportion valve 32, the 5th Pneumatic valve
33rd, 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
39th, the 9th Pneumatic valve 40, the tenth Pneumatic valve 41, the 9th pressure sensor 42, the 11st Pneumatic valve 43, first pressure sensor
44th, filter 45, the second ball valve 46, safety valve 47, filtering bigeminy part 48, the first ball valve 49.
Embodiment
Below by embodiment, and with reference to accompanying drawing, technical scheme is described in further detail.
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 being provided with Industrial PC Computer in organic frame 1, frame, and Industrial PC Computer passes through connection data collecting card, printer, ether
Network switch, Ethernet switch connects servomotor controller, magnetic valve, electrically pressure sensor, ratio by programmable PLC
Example valve, pressure display table, servomotor controller are connected with servomotor, and magnetic valve connects Pneumatic valve, and the outer surface of frame is set
There are altitude valve test fixture 2, a valve plate 3, valve plate is provided with first interface 4, second interface 5, the 3rd interface 6, the 4th interface 7, the
Five interfaces 8, the 6th interface 9, each interface by gas circuit connect magnetic valve, pressure sensor, electric Proportion valve, pressure display table,
Pneumatic valve.
Such as Fig. 4, the connection second pressure of valve plate 3 sensor 10, the 4th pressure sensor 11, the 5th pressure sensor 12, the
Six pressure sensors 13, the 7th pressure sensor 14, the 3rd ball valve 15；Second pressure sensor 10 is sequentially connected first-hand rotary valve
16th, the first Pneumatic valve 17, the second magnetic valve 18, the first magnetic valve 19, the first electric Proportion valve 20；3rd ball valve 15 is connected respectively
There are the 3rd pressure sensor 21, the 4th ball valve 22, second-hand's rotary valve 23, second-hand's rotary valve connects first by the second Pneumatic valve 24
Electric Proportion valve；4th pressure sensor 11 is sequentially connected the 3rd hand rotary valve 25, the 3rd Pneumatic valve 26, the 3rd magnetic 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 magnetic valve
31st, the 3rd electric Proportion valve 32；6th pressure sensor 13 connects the 5th Pneumatic valve 33, the 7th Pneumatic valve 34, the 5th gas respectively
Control valve is sequentially connected the 8th pressure sensor 35, the 6th Pneumatic valve 36, and the 7th Pneumatic valve 34 connects the 8th Pneumatic valve 37, the respectively
Five ball valves 38, check valve 39；7th pressure sensor 14 connects the 9th Pneumatic valve 40, the tenth Pneumatic valve 41, the 9th gas control respectively
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
A magnetic valve is connected to, magnetic valve, the first electric Proportion valve 20, the second electric Proportion valve 28, the 3rd electric Proportion valve 32 are in parallel
First pressure sensor 44 is connected with, 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.Gas circuit is connected with gas boosting valve.
A kind of application method of high-accuracy multifunctional railcar brake system test platform, is tested altitude valve, such as
Fig. 4, its step is：
A. the connection of altitude valve test pipeline, railcar altitude valve bottom valve V interfaces are connected with the 3rd interface 6, L interface and the
Five interfaces 8 are connected, and altitude valve is fixed on altitude valve test fixture 2 by pipeline connection after finishing；
B. the sealing of connecting line is checked, the second electric Proportion valve 28 regulation compressed air pressure, the 3rd magnetic valve 27 is opened,
3rd Pneumatic valve 26 is opened, and the 3rd hand rotary valve 25 is opened, when the compressed air of specified pressure is filled with to altitude valve, and stablizing one section
Between, 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 servomotor, to height
Valve fills wind, and the second electric Proportion valve 28 regulation compressed air pressure, the 3rd magnetic valve 27 is opened, and the 3rd Pneumatic valve 26 is opened, the
Three hand rotary valves 25 are opened and keep pressure stability, and air feed is cut off after pressure stability, and the 3rd Pneumatic valve 26 is closed and pressurize, in regulation
Pressure, which declines, in time is no more than setting, the 4th pressure sensor 11 measurement pressure change, and result is fed back into Industrial PC
Machine, Industrial PC Computer judges whether neutral position air-tightness meets requirement according to decision condition；
D. charge position puts air tightness test, drives altitude valve swing rod to be put in charge position by servomotor, wind is filled to altitude valve
And pressure stability is kept, the second electric Proportion valve 28 regulation compressed air pressure, the 3rd magnetic valve 27 is opened, the 3rd Pneumatic valve 26
Open, the 3rd hand rotary valve 25 is opened, air feed is cut off after pressure stability, the 3rd Pneumatic valve 26 is closed and pressurize, at the appointed time
Pressure, which declines, is no more than setting, the 4th pressure sensor 11 measurement pressure change, and result is fed back into Industrial PC Computer, industry
PC judges that charge position puts whether air-tightness meets requirement according to decision condition；
E. air draft position air tightness test, drives altitude valve swing rod to be in air draft position, wind is filled to altitude valve by servomotor
And pressure stability is kept, the second electric Proportion valve 28 regulation compressed air pressure, the 3rd magnetic valve 27 is opened, the 3rd Pneumatic valve 26
Open, the 3rd hand rotary valve 25 is opened, and keeps cutting off air feed after pressure stability, pressure stability, the 3rd Pneumatic valve 26 and pressurize,
Pressure, which declines, in stipulated time is no more than setting, the 4th pressure sensor 11 measurement pressure change, and result is fed back into work
Industry PC, Industrial PC Computer judges whether air draft position air-tightness meets requirement according to decision condition；
F. servomotor driving altitude valve swing rod, makes altitude valve swing rod be in throttling charge position and puts；
G. wind, the second electric Proportion valve 28 regulation compressed air pressure, the 3rd magnetic valve 27 are filled to altitude valve by the 3rd interface 6
Open, the 3rd Pneumatic valve 26 is opened, and the 3rd hand rotary valve 25 is opened, and the 7th Pneumatic valve 34 is opened, and the 8th Pneumatic valve 37 is closed, and is passed through
The rate of pressure change of 80L reservoirs judges that it fills wind energy power；Air feed is cut off, the 3rd Pneumatic valve 26 is closed, the 8th Pneumatic valve 37 dozens
Open, the pressure in emptying 80L reservoirs to normality；
H. throttling air draft, quick abundant, quick air draft are respectively driven altitude valve swing rod to relevant position by servomotor,
Then repeat step g；
I. system is back to original state after the completion of detecting, servomotor driving altitude valve swing rod is back to zero point, tests pipeline gas
Source cuts off and is vented, and the pressure of the second electric Proportion valve 28 is set as 0, and the 3rd magnetic valve 27 is vented.
A kind of application method of high-accuracy multifunctional railcar brake system test platform, is tested powered ball valve,
Such as Fig. 4, its step is：
A. installed by test specimen, tested ball valve air inlet is connected with the 4th interface 7 on valve plate 3, ball valve outlet connects with the 5th
Mouth 8 is connected.
B. signal detection is tested, ball valve initial position：Close stance, connects electric connector, and ball valve is threaded into open position, inspection
Output signal is surveyed, then ball valve is threaded to closed position, output signal is detected, above-mentioned action is repeated 3 times；
C. air-tight test, ball valve is in the closed position, and 500KPa compressed airs, the 3rd electric ratio are passed through to ball valve inlet end
Valve 32 is opened and adjusted to specified pressure, and the 4th magnetic valve 31 is opened, the 4th Pneumatic valve 30 is opened, the 4th hand rotary valve 29 is opened,
The 4th Pneumatic valve, 30min internal leakages≤5KPa after pressure stabilisation are closed after the completion of being passed through；
D. ball valve is threaded to open position, 500KPa compressed airs is passed through to ball valve inlet end, the 3rd electric Proportion valve 32 is opened
And adjust to specified pressure, the 4th magnetic valve 31 is opened, the 4th Pneumatic valve 30 is opened, the 4th hand rotary valve 29 is opened, and is passed through completion
The 4th Pneumatic valve, 30min internal leakages≤5KPa after pressure stabilisation are closed afterwards；
E. system is back to original state after the completion of detecting, test pipeline source of the gas is cut off and is vented, and the 3rd electric Proportion valve 32 is pressed
Power is set as 0, and the 4th magnetic valve 31 is vented.
A kind of application method of high-accuracy multifunctional railcar brake system test platform, is tested pressure switch,
Such as Fig. 4, its step is：
A. the pressure switch of tape test is connected with first interface 4；
B. air-tight test, adjusts output pressure 800KPa, and the first electric Proportion valve 20 is opened, the second magnetic valve 18 is opened, the
One Pneumatic valve 17 is opened, first-hand rotary valve 16 is opened, and the first Pneumatic valve pressurize 60s internal drops≤5KPa is closed in gas transmission after finishing；
C. prolong clossing pressure in test, adjust the first electric Proportion valve 20 so that pressure is increased with 50KPa/s speed by 0KPa
To 800KPa, operating point air pressure in pressure switch is detected by second pressure sensor 10；
D. downward Opening pressure is tested, the first electric Proportion valve 20 of regulation makes pressure be down to by 800KPa with 50KPa/s speed
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, test pipeline source of the gas is cut off and is vented, and the first electric Proportion valve 20 is pressed
Power is set as 0, and the second magnetic valve 18 is vented.
A kind of application method of high-accuracy multifunctional railcar brake system test platform, is detected, such as to safety valve
Fig. 4, its step is：
A. safety valve to be tested is installed on second interface 5；
B. open the 3rd ball valve 15 to switch, start test by start button, now the first electric Proportion valve 20, the second Pneumatic valve
24th, second-hand's rotary valve 23 is in open mode, when safety valve 41 discharges portion of air, determines pressure at expulsion now,
Pressure at expulsion will be contrasted with reference pressure value, show whether the pressure value is qualified by the display of Industrial PC Computer；
C. safety valve 41 continues to be vented, until safety valve stops exhaust, determines closing presure now, closing presure will be with standard
Pressure value is contrasted, 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, test pipeline source of the gas is cut off and is vented, and the first electric Proportion valve 20 is pressed
Power is set as 0, opens the 4th ball valve 22 and is exhausted.
The specific embodiment of the present invention is the foregoing is only, but the architectural feature of the present invention is not limited thereto, Ren Heben
The technical staff in field is in the field of the invention, and the change or modification made all are covered among the scope of the claims of the present invention.
Claims (7)
1. a kind of high-accuracy multifunctional railcar brake system test platform, it is characterised in that described testing stand includes organic frame
（1）, be provided with Industrial PC Computer in frame, Industrial PC Computer by connection data collecting card, printer, Ethernet switch, with
Too network switch connects servomotor controller, magnetic valve, pressure sensor, electric Proportion valve, pressure by programmable PLC and shown
Show table, servomotor controller is connected with servomotor, and magnetic valve connects Pneumatic valve, and the outer surface of frame is provided with height valve test
Frock（2）, valve plate（3）, valve plate is provided with first interface（4）, second interface（5）, the 3rd interface（6）, the 4th interface（7）,
Five interfaces（8）, the 6th interface（9）, each interface connects magnetic valve, pressure sensor, electric Proportion valve, pressure by gas circuit and shows
Table, Pneumatic valve.
2. high-accuracy multifunctional railcar brake system test platform according to claim 1, it is characterised in that described
Valve plate（3）Connect second pressure sensor（10）, the 4th pressure sensor（11）, the 5th pressure sensor（12）, the 6th pressure
Sensor（13）, the 7th pressure sensor（14）, the 3rd ball valve（15）；Second pressure sensor（10）It is sequentially connected first-hand turn
Valve（16）, the first Pneumatic valve（17）, the second magnetic valve（18）, the first magnetic valve（19）, the first electric Proportion valve（20）；3rd ball
Valve（15）It is connected to the 3rd pressure sensor（21）, the 4th ball valve（22）, second-hand's rotary valve（23）, second-hand's rotary valve passes through
Second Pneumatic valve（24）Connect the first electric Proportion valve；4th pressure sensor（11）It is sequentially connected the 3rd hand rotary valve（25）,
Three Pneumatic valves（26）, the 3rd magnetic valve（27）, the second electric Proportion valve（28）；5th pressure sensor（12）It is sequentially connected the 4th
Hand rotary valve（29）, the 4th Pneumatic valve（30）, the 4th magnetic valve（31）, the 3rd electric Proportion valve（32）；6th pressure sensor
（13）The 5th Pneumatic valve is connected respectively（33）, the 7th Pneumatic valve（34）, the 5th Pneumatic valve is sequentially connected the 8th pressure sensor
（35）, the 6th Pneumatic valve（36）, the 7th Pneumatic valve（34）The 8th Pneumatic valve is connected respectively（37）, the 5th ball valve（38）, check valve
（39）；7th pressure sensor（14）The 9th Pneumatic valve is connected respectively（40）, the tenth Pneumatic valve（41）, the 9th Pneumatic valve connection list
To valve, the tenth Pneumatic valve is sequentially connected the 9th pressure sensor（42）, the 11st Pneumatic valve（43）；Each Pneumatic valve is connected with
One magnetic valve, magnetic valve, the first electric Proportion valve（20）, the second electric Proportion valve（28）, the 3rd electric Proportion valve（32）And
Connection 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）.
3. high-accuracy multifunctional railcar brake system test platform according to claim 1 or 2, it is characterised in that described
Gas circuit be connected with gas boosting valve.
4. a kind of application method of high-accuracy multifunctional railcar brake system test platform, it is characterised in that described method bag
Include：
A. altitude valve test pipeline connection, by railcar altitude valve bottom valve V interfaces and the 3rd interface（6）Connection, L interface with
5th interface（8）Altitude valve is fixed on altitude valve test fixture by connection, pipeline connection after finishing（2）On；
B. the sealing of connecting line, the second electric Proportion valve are checked（28）Adjust compressed air pressure, the 3rd magnetic valve（27）
Open, the 3rd Pneumatic valve（26）Open, the 3rd hand rotary valve（25）Open, the compressed air of specified pressure is filled with to altitude valve, and
Stable 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 servomotor, to height
Valve fills wind, the second electric Proportion valve（28）Adjust compressed air pressure, the 3rd magnetic valve（27）Open, the 3rd Pneumatic valve（26）Beat
Open, the 3rd hand rotary valve（25）Open and keep pressure stability, air feed, the 3rd Pneumatic valve are cut off after pressure stability（26）Close and protect
Pressure, pressure, which declines, at the appointed time is no more than setting, the 4th pressure sensor（11）Pressure change is measured, and result is anti-
Industrial PC Computer is fed to, Industrial PC Computer judges whether neutral position air-tightness meets requirement according to decision condition；
D. charge position puts air tightness test, drives altitude valve swing rod to be put in charge position by servomotor, wind is filled to altitude valve
And keep pressure stability, the second electric Proportion valve（28）Adjust compressed air pressure, the 3rd magnetic valve（27）Open, the 3rd gas control
Valve（26）Open, the 3rd hand rotary valve（25）Open, air feed, the 3rd Pneumatic valve are cut off after pressure stability（26）Close and pressurize,
Pressure, which declines, in stipulated time is no more than setting, the 4th pressure sensor（11）Pressure change is measured, and result is fed back to
Industrial PC Computer, Industrial PC Computer judges that charge position puts whether air-tightness meets requirement according to decision condition；
E. air draft position air tightness test, drives altitude valve swing rod to be in air draft position, wind is filled to altitude valve by servomotor
And keep pressure stability, the second electric Proportion valve（28）Adjust compressed air pressure, the 3rd magnetic valve（27）Open, the 3rd gas control
Valve（26）Open, the 3rd hand rotary valve（25）Open, and keep cutting off air feed after pressure stability, pressure stability, the 3rd Pneumatic valve
（26）And pressurize, pressure, which declines, at the appointed time is no more than setting, the 4th pressure sensor（11）Pressure change is measured, and
Result is fed back into Industrial PC Computer, Industrial PC Computer judges whether air draft position air-tightness meets requirement according to decision condition；
F. servomotor driving altitude valve swing rod, makes altitude valve swing rod be in throttling charge position and puts；
G. the 3rd interface is passed through（6）Wind, the second electric Proportion valve are filled to altitude valve（28）Adjust compressed air pressure, the 3rd electromagnetism
Valve（27）Open, the 3rd Pneumatic valve（26）Open, the 3rd hand rotary valve（25）Open, the 7th Pneumatic valve（34）Open, the 8th gas control
Valve（37）Close, judge that it fills wind energy power by the rate of pressure change of 80L reservoirs；Cut off air feed, the 3rd Pneumatic valve（26）Close
Close, the 8th Pneumatic valve（37）Open, the pressure in emptying 80L reservoirs to normality；
H. throttling air draft, quick abundant, quick air draft are respectively driven altitude valve swing rod to relevant position by servomotor,
Then repeat step g；
I. system is back to original state after the completion of detecting, servomotor driving altitude valve swing rod is back to zero point, tests pipeline gas
Source cuts off and is vented, the second electric Proportion valve（28）Pressure is set as 0, the 3rd magnetic valve（27）Exhaust.
5. a kind of application method of high-accuracy multifunctional railcar brake system test platform, it is characterised in that described method bag
Include：
A. installed by test specimen, by tested ball valve air inlet and valve plate（3）On the 4th interface（7）Connection, ball valve outlet and the
Five interfaces（8）Connection；
B. signal detection is tested, ball valve initial position：Close stance, connects electric connector, and ball valve is threaded into open position, detects defeated
Go out signal, then ball valve is threaded to closed position, detect output signal, above-mentioned action is repeated 3 times；
C. air-tight test, ball valve is in the closed position, and compressed air, the 3rd electric Proportion valve are passed through to ball valve inlet end（32）
Open and adjust to specified pressure, the 4th magnetic valve（31）Opening, the 4th Pneumatic valve（30）Opening, the 4th hand rotary valve（29）Beat
Open, the 4th Pneumatic valve, leakage rate≤5KPa after pressure stabilisation are closed after the completion of being passed through；
D. ball valve is threaded to open position, compressed air, the 3rd electric Proportion valve is passed through to ball valve inlet end（32）Open and adjust
Save to specified pressure, the 4th magnetic valve（31）Opening, the 4th Pneumatic valve（30）Opening, the 4th hand rotary valve（29）Open, be passed through
Into 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, test pipeline source of the gas cuts off and is vented, the 3rd electric Proportion valve（32）
Pressure is set as 0, the 4th magnetic valve（31）Exhaust.
6. a kind of application method of high-accuracy multifunctional railcar brake system test platform, it is characterised in that described method bag
Include：
A. by the pressure switch and first interface of tape test（4）Connection；
B. air-tight test, adjusts output pressure, the first electric Proportion valve（20）Opening, the second magnetic valve（18）Opening, first
Pneumatic valve（17）Opening, first-hand rotary valve（16）Open, the first Pneumatic valve pressurize pressure drop≤5KPa is closed in gas transmission after finishing；
C. prolong clossing pressure in test, adjust the first electric Proportion valve（20）, pass through second pressure sensor（10）Detect pressure
Operating point air pressure on switch；
D. downward Opening pressure is tested, the first electric Proportion valve is adjusted（20）, pass through second pressure sensor（10）Detect pressure
The lower operating point air pressure of switch；
E. system is back to original state after the completion of detecting, test pipeline source of the gas cuts off and is vented, the first electric Proportion valve（20）
Pressure is set as 0, the second magnetic valve（18）Exhaust.
7. a kind of application method of high-accuracy multifunctional railcar brake system test platform, it is characterised in that described method bag
Include：
A. safety valve to be tested is installed on second interface（5）；
B. the 3rd ball valve is opened（15）Switch, starts test, now the first electric Proportion valve by start button（20）, the second gas control
Valve（24）, second-hand's rotary valve（23）In open mode, work as safety valve（41）When portion of air is discharged, row now is determined
Atmospheric pressure, pressure at expulsion will be contrasted with reference pressure value, show whether the pressure value closes by the display of Industrial PC Computer
Lattice；
C. safety valve（41）Continue to be vented, until safety valve stops exhaust, determine closing presure now, closing presure will be with mark
Quasi- pressure value is contrasted, 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, test pipeline source of the gas cuts off and is vented, the first electric Proportion valve（20）
Pressure is set as 0, opens the 4th ball valve（22）It is exhausted.
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| CN201610858636.9A CN107036829B (en) | 2016-09-28 | 2016-09-28 | High-accuracy multifunctional railcar brake system test platform and its application method |
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| 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 |
| 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 |
| 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 |
| CN112985853A (en) * | 2021-04-16 | 2021-06-18 | 中国铁道科学研究院集团有限公司 | Pneumatic test system for railway vehicle foundation brake product |
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| CN116448351A (en) * | 2023-06-14 | 2023-07-18 | 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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| CN109443808A (en) * | 2018-09-30 | 2019-03-08 | 同济大学 | A kind of vehicle braking intelligence pilot system interface arrangement |
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| 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 |
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| CN115184052A (en) * | 2022-07-07 | 2022-10-14 | 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 |
| CN116448351A (en) * | 2023-06-14 | 2023-07-18 | 威海博胜气动液压有限公司 | Automatic test bench and test method for altitude valve |
| 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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