CN102323018A - Test bed for detecting comprehensive performance of air pipeline cabinet of locomotive braking system - Google Patents
Test bed for detecting comprehensive performance of air pipeline cabinet of locomotive braking system Download PDFInfo
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- CN102323018A CN102323018A CN201110239193A CN201110239193A CN102323018A CN 102323018 A CN102323018 A CN 102323018A CN 201110239193 A CN201110239193 A CN 201110239193A CN 201110239193 A CN201110239193 A CN 201110239193A CN 102323018 A CN102323018 A CN 102323018A
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Abstract
The invention discloses a test bed for detecting the comprehensive performance of an air pipeline cabinet of a locomotive braking system. The test bed comprises a gas path part and a circuit part, wherein the gas path part is formed by connecting an operating valve, an air pressure meter, a manual/pneumatically-controlled cock, a volume air cylinder, a pressure regulating valve and a check valve through a pipeline; a pipeline of the gas path part is connected with a corresponding pipeline of the air pipeline cabinet to be detected; the gas path part is used for simulating the pipeline volume of a locomotive in the ratio of 1:1; each branch gas path is provided with a pressure sensor respectively; the circuit part comprises an input power distribution module, a pressure sensor, a PLC (Programmable Logic Controller), an I/O (Input/Output) extension module, an industrial computer, a display, a printer and the like; the output end of the PLC is used for controlling the pneumatically-controlled cock of the gas path part and acquiring the pressure data of each pressure sensor of the gas path part; an output signal of the air pipeline cabinet is converted through a photoelectric isolation plate and transmitted to the PLC for processing; and the industrial computer is connected with the PLC through an RS-232 serial port and is used for receiving input test parameters, sending a command to the PLC, driving the PLC to actuate and receiving a feedback signal uploaded by the PLC simultaneously.
Description
Technical field
The present invention relates to the locomotive brake control system, refer in particular to a kind of testing table that locomotive braking system air pipe line cabinet combination property detects that is used for.
Background technology
At present; Locomotive braking system air pipe line cabinet testing table is realized the detection to the air pipe line cabinet with the large and small lock of manual operations; Lack system controlled by computer, reading of data mainly is the demonstration that relies on metering outfit, thereby data are judged to read and had artificial error; And can't dynamically show the test process in the process of the test, thereby the incompatible needs of producing, overhauling.
Summary of the invention
To the deficiency that prior art exists, technical matters to be solved by this invention provides a kind of can carrying out from dynamic test, and can dynamically show the testing table that locomotive braking system air pipe line cabinet combination property detects that is used for of test process and data.
For solving the problems of the technologies described above; The technical scheme that the present invention taked is: a kind of testing table that is used for the detection of locomotive braking system air pipe line cabinet combination property; It comprises air path part and circuit part; This air path part control valve, a plurality of draft gauge, a plurality of manually/gas control plug door, a plurality of volume reservoir, pressure regulator valve and non-return valve be formed by connecting through pipeline, the pipeline of this air path part connects the corresponding pipeline of air pipe line cabinet to be measured, it is characterized in that:
This air path part is respectively equipped with pressure transducer according to the pipeline volume of the scale modeling locomotive of 1:1 on each branch's gas circuit of this air path part;
This circuit part comprises input Power entry module, pressure transducer, PLC and I/0 expansion module, industrial computer and display, printer; This industrial computer connects display and printer; This industrial computer connects PLC through the RS-232 serial ports simultaneously, and the output terminal of PLC connects the gas control plug door of air path part; The input end of this PLC connects each pressure transducer of air path part, makes PLC can gather the pressure data of each branch's gas circuit and is delivered to industrial computer; The input end of this PLC is connected through the output terminal of optical isolation board with the air pipe line cabinet, and the output signal that makes the air pipe line cabinet is sent into PLC and is delivered to industrial computer through the optical isolation board conversion and shows through pilot lamp; Industrial computer receives the test parameters of input, and PLC is sent instruction, lets PLC carry out action, receives the force value of each branch's gas circuit that PLC uploads and the feedback signal of air pipe line cabinet output terminal simultaneously, is shown by display output; This input Power entry module electrically connects PLC and I/0 expansion module, so that required electric power to be provided.
A preferred embodiment of the present invention is that this industrial computer is connected with the brak control unit of air pipe line cabinet to be measured through the mvb bus.
The present invention is through calculating the volume of each air pipe line of locomotive; Ratio according to 1:1; With the pipeline volume of volume reservoir real simulation locomotive, with air path part simulation locomotive air path part of the present invention, with circuit part simulation locomotive circuit part of the present invention; Simulate big or small lock switching value signal simultaneously, give the brak control unit (BCU) and the auxiliary compressor power supply of air pipe line cabinet.Industrial computer of the present invention is realized and plc communication through the RS-232 serial ports; And this industrial computer acceptance test parameter; PLC is sent instruction; Receive the force value of each branch's gas circuit that PLC uploads and the feedback signal of air pipe line cabinet output terminal, and pass to industrial computer and show through display; This PLC accepts the various input signals that industrial computer transmits, the instruction of order actuating logic, each plug door action of control.Adopt the database storing content of the test in this industrial computer, can realize the inquiry and the printing function of test figure through different key words.
Compared with prior art, the invention has the advantages that:
1, adopt system controlled by computer, Programmable Logic Controller (PLC) and touch screen technology have changed the working method of former testing equipment relay contact control, manual operation, artificial reading, and test figure is truer, and error is littler;
2, process of the test more intuitively reflects the pressure changing of process of the test pipeline through time-pressue-graph;
3, testing table possesses the network communication function, can realize the communication function of BCU and industrial computer;
4, the testing table man-machine interface is visual in image, and parameter freely is provided with, and has preservation and printing, the setting of operator's level of security, automatic/hand translation function of historical data etc.
Description of drawings
Fig. 1 is an air path part schematic diagram of the present invention.
Fig. 2 is an electrical structure synoptic diagram of the present invention.
Fig. 3 is an Industrial Computer Control software flow pattern of the present invention.
Embodiment
Below will combine accompanying drawing and specific embodiment that patent of the present invention is explained further details.
Like Fig. 1 and shown in Figure 2, the testing table that the present invention is used for the detection of locomotive braking system air pipe line cabinet combination property comprises air path part and circuit part.
As shown in Figure 1; This air path part structure and the structural similarity that has artificial testing table now; It is formed by connecting through pipeline on control valve, 8 single needle draft gauges, a plurality of plug door (gas control, manually), a plurality of volume reservoir, pressure regulator valve, non-return valve etc. equally; The pipeline of this air path part connects the corresponding pipeline of air pipe line cabinet to be measured, and this manually fills in the gas path on-off of door and gas control plug gate control pipeline, and this air path part is according to the pipeline volume of the scale modeling locomotive of 1:1; Be respectively equipped with pressure transducer on each branch's gas circuit, be used for gathering the pipeline pressure data.This air path part only is to be respectively equipped with pressure transducer on each branch's gas circuit with the difference of existing artificial test platform structure.
It is as shown in Figure 2 that the present invention is used for the circuit part of the testing table that locomotive braking system air pipe line cabinet combination property detects, and it comprises input Power entry module (not shown), pressure transducer, PLC and I/0 expansion module, industrial computer and display, printer etc.This industrial computer connects display and printer.This industrial computer also connects PLC through the RS-232 serial ports, and the output terminal of this PLC connects the gas control plug door of air path part, thereby realizes the automatic control to gas control plug door; The input end of this PLC also connects each pressure transducer of air path part, makes the pressure of each branch's gas circuit of air path part be delivered to industrial computer through PLC; And the input end of this PLC is connected through the output terminal of optical isolation board with the air pipe line cabinet, makes the duty of each parts of air pipe line cabinet send industrial computer to through PLC, and shows through the pilot lamp on its display screen.This input Power entry module electrically connects PLC and I/0 expansion module, thereby required electric power is provided for testing table.
This industrial computer is the control center of testing table of the present invention; Running test platform control program on it, this functions of control program is the acceptance test parameter, and PLC is sent instruction; Receive the various feedback signals (the output terminal duty of the force value of air path part, air pipe line cabinet) that PLC uploads; Can be according to each branch's gas circuit force value of real-time feedback, drafting time-pressue-graph, thus intuitively reflect the pressure changing of process of the test pipeline.
This PLC inside comprises CPU module, input/output module, A/D modular converter, D/A modular converter, communication module etc.
The industrial computer 1 of testing table of the present invention also is connected with the brak control unit (BCU) of air pipe line cabinet to be measured through the mvb bus; Thereby can realize the direct communication of the brak control unit (BCU) of industrial computer and air pipe line cabinet to be measured; Make each data among the BCU can directly be transferred to industrial computer, and show above that.Pressure data through BCU is uploaded is compared with the data that pressure transducer records, and can proofread and correct pressure data, thereby obtain real time-pressue-graph, objectively responds the pressure changing of process of the test pipeline.
Testing table of the present invention also can adopt manual mode control, and it mainly is that large and small lock is packed in the control loop, sends the operations instruction through large and small lock and makes an experiment.
Fig. 3 is a testing table Industrial Computer Control software flow pattern of the present invention; From figure, find out; At first start-up routine is imported user and password and is landed this Control Software System, selects pilot project; Click new test, the industrial computer program cooperates PLC commander testing table to make an experiment according to the parameter that has configured.After industrial computer is clicked new test; The PLC power-up initializing; Through the message exchange of RS-232 serial ports completion with industrial computer; Acceptance is from the test parameters of industrial computer, and PLC scans each input port one by one, and the current state of all input equipments is remained to corresponding input image register.PLC with all input state finishing collecting after; (the PLC user program is exactly the testing table process control block (PCB), is meant that PLC controls each performer of testing table according to testing requirements, like the break-make of control circuit to get into execution PLC user program; The break-make of gas circuit) stage; Order is carried out the ladder diagram instruction, after calculating, handling, is exported by output interface.And give industrial computer with the output signal feedback of air pipe line cabinet.Entire test can stop, and can test again after having tested, and the result of test can preserve and print.The pilot project of testing table of the present invention comprises: more than 20 pilot projects such as urgent test, air-tight test, graduated application, independent brake and alleviation, ilities test.
Claims (3)
1. one kind is used for the testing table that locomotive braking system air pipe line cabinet combination property detects; It comprises air path part and circuit part; This air path part control valve, a plurality of draft gauge, a plurality of manually/gas control plug door, a plurality of volume reservoir, pressure regulator valve and non-return valve be formed by connecting through pipeline; The pipeline of this air path part connects the corresponding pipeline of air pipe line cabinet to be measured, it is characterized in that:
This air path part is respectively equipped with pressure transducer according to the pipeline volume of the scale modeling locomotive of 1:1 on each branch's gas circuit of this air path part;
This circuit part comprises input Power entry module, pressure transducer, PLC and I/0 expansion module, industrial computer and display, printer; This industrial computer connects display and printer; This industrial computer connects PLC through the RS-232 serial ports simultaneously, and the output terminal of PLC connects the gas control plug door of air path part; The input end of this PLC connects each pressure transducer of air path part, makes PLC can gather the pressure data of each branch's gas circuit and is delivered to industrial computer; The input end of this PLC is connected through the output terminal of optical isolation board with the air pipe line cabinet, and the output signal that makes the air pipe line cabinet is sent into PLC and is delivered to industrial computer through the optical isolation board conversion and shows through pilot lamp; Industrial computer receives the test parameters of input, and PLC is sent instruction, lets PLC carry out action, receives the force value of each branch's gas circuit that PLC uploads and the feedback signal of air pipe line cabinet output terminal simultaneously, is shown by display output; This input Power entry module electrically connects PLC and I/0 expansion module, so that required electric power to be provided.
2. the testing table that is used for the detection of locomotive braking system air pipe line cabinet combination property according to claim 1 is characterized in that this industrial computer is connected with the brak control unit of air pipe line cabinet to be measured through the mvb bus.
3. the testing table that is used for the detection of locomotive braking system air pipe line cabinet combination property according to claim 1 is characterized in that this circuit part also comprises Da Zha and Xiao Zha.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110239193A CN102323018A (en) | 2011-08-19 | 2011-08-19 | Test bed for detecting comprehensive performance of air pipeline cabinet of locomotive braking system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110239193A CN102323018A (en) | 2011-08-19 | 2011-08-19 | Test bed for detecting comprehensive performance of air pipeline cabinet of locomotive braking system |
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| CN102323018A true CN102323018A (en) | 2012-01-18 |
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| CN201110239193A Pending CN102323018A (en) | 2011-08-19 | 2011-08-19 | Test bed for detecting comprehensive performance of air pipeline cabinet of locomotive braking system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589908A (en) * | 2012-01-19 | 2012-07-18 | 中南大学 | Device for detecting fault of single module of CCBII brake |
| CN103662086A (en) * | 2013-11-29 | 2014-03-26 | 浙江省计量科学研究院 | Airplane porthole component performance test system |
| CN105938071A (en) * | 2015-12-24 | 2016-09-14 | 石油和化学工业橡胶及再生产品质量监督检验中心（天津市质量监督检验站第四十二站） | Volume expansion system for rubber hose detection |
| CN109443808A (en) * | 2018-09-30 | 2019-03-08 | 同济大学 | A kind of vehicle braking intelligence pilot system interface arrangement |
| CN110220655A (en) * | 2019-04-30 | 2019-09-10 | 东风汽车集团有限公司 | A kind of vacuum for the full pipeline of braking system and pressure test rack |
| CN110595701A (en) * | 2019-09-16 | 2019-12-20 | 东风商用车有限公司 | Air tightness detection system and method for automobile air brake system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589908A (en) * | 2012-01-19 | 2012-07-18 | 中南大学 | Device for detecting fault of single module of CCBII brake |
| CN102589908B (en) * | 2012-01-19 | 2014-03-26 | 中南大学 | Device for detecting fault of single module of CCBII brake |
| CN103662086A (en) * | 2013-11-29 | 2014-03-26 | 浙江省计量科学研究院 | Airplane porthole component performance test system |
| CN103662086B (en) * | 2013-11-29 | 2015-12-02 | 浙江省计量科学研究院 | The test macro of aircraft windows assembly property |
| CN105938071A (en) * | 2015-12-24 | 2016-09-14 | 石油和化学工业橡胶及再生产品质量监督检验中心（天津市质量监督检验站第四十二站） | Volume expansion system for rubber hose detection |
| CN109443808A (en) * | 2018-09-30 | 2019-03-08 | 同济大学 | A kind of vehicle braking intelligence pilot system interface arrangement |
| CN110220655A (en) * | 2019-04-30 | 2019-09-10 | 东风汽车集团有限公司 | A kind of vacuum for the full pipeline of braking system and pressure test rack |
| CN110595701A (en) * | 2019-09-16 | 2019-12-20 | 东风商用车有限公司 | Air tightness detection system and method for automobile air brake system |
| CN110595701B (en) * | 2019-09-16 | 2021-03-30 | 东风商用车有限公司 | Air tightness detection system and method for automobile air brake system |
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Application publication date: 20120118 |