CN203785906U - Portable testing device for subway braking system - Google Patents
Portable testing device for subway braking system Download PDFInfo
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- CN203785906U CN203785906U CN201320624377.5U CN201320624377U CN203785906U CN 203785906 U CN203785906 U CN 203785906U CN 201320624377 U CN201320624377 U CN 201320624377U CN 203785906 U CN203785906 U CN 203785906U
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- pressure
- braking system
- reducing valve
- display unit
- test device
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Abstract
The utility model provides a portable testing device for a subway braking system, and the testing device comprises a wind source connector, a proportional pressure-reducing valve, two cutout cocks, an air-discharge cock, two testing connectors, two pressure sensors, a PLC control and display unit. The wind source connector is connected with the proportional pressure-reducing valve through an air channel. The proportional pressure-reducing valve is connected with the cutout cocks through air channels. One cutout cock is connected with one pressure sensor and one testing connector through air channels, and the other cutout cock is connected with the other sensor pressure, the other testing connector and the air-discharge cock through air channels. The two pressure sensor and the proportional pressure-reducing valve are respectively connected with the PLC control and display unit through wires. The testing device can meet the requirements for braking systems of different subways and automobiles, is simple in structure, is reasonable in layout, is small in size, is convenient to carry, is high in precision, is mature and reliable in technology, and achieves the performances of light weight, automation and generalization on the basis of meeting the requirements for the precision of the braking system.
Description
Technical field
The utility model relates to a kind of metro braking STS system test set, particularly a kind of static state of railcar brake system and portable test unit of dynamic debugging of being applied to.
Background technology
Metro braking system is the critical system that ensures railcar driving safety, and vehicle brake control apparatus (BCU) is the core component of brake system.BCU all has installation on the every joint vehicle of subway, under different braking rank, and the brake pressure according to every joint vehicle Different Weight BCU to checking cylinder output appropriate level, thus make every joint vehicle in the time of braking, keep identical retarded velocity to stop ensureing permutation car simultaneously.The weight in compartment is to feed back to BCU by adapt air spring pressure on metro bogie (AS pressure), and BCU arrives checking cylinder according to AS pressure control output brake pressure (BC pressure).Therefore,, according to setting up vehicle AS pressure and then detecting BC pressure, judge that whether BCU is qualified.In the time that BCU is detected, the BCU working condition under every joint vehicle Different Weight state all need to be tested, detection limit is heavy, error is large, repetitive operation, efficiency are low, labor intensive material resources.In addition, brake system also comprises as parts such as surplus valve, reduction valve, pressure switches, also needs a pair of its performance to test, judge.
In metro braking debug process, the different braking systems such as Tie Ke institute brake system, Na Botesike brake system, Ke Nuoer brake system, system architecture separately and adjustment method are also different.Current test method is that each brake system adopts different devices and equipment to debug, complicated operation, do not unite type, poor compatibility.This just needs lightweight as far as possible on a kind of basis that can meet vehicle accuracy requirement, be easy to carry, have the programmed control interface of handled easily, adopt the test unit of general rapid-acting coupling with vehicle interface.
Summary of the invention
The utility model fundamental purpose is to address the above problem, provide a kind of simple in structure, safe and convenient to use, precision is high, operate efficient portable subway braking system test device.
For achieving the above object, the technical solution of the utility model is:
Portable subway braking system test device, comprises that wind regime joint, proportional pressure-reducing valve, 2 cutout cocks, Exhausting plug valve, 2 test splices, 2 pressure transducers, PLC control and display unit; Wherein wind regime joint is connected by gas circuit with proportional pressure-reducing valve; Proportional pressure-reducing valve is connected respectively by gas circuit with 2 cutout cocks; One of them cutout cock is connected respectively by gas circuit with a pressure transducer, a test splice, and another cutout cock is connected respectively by gas circuit with another pressure transducer, another test splice, Exhausting plug valve; 2 pressure transducers, proportional pressure-reducing valves are connected by wire with PLC control and display unit respectively.
This test unit has several functions, and the available test job that completes metro braking system different elements, mainly comprises:
This test unit can be used for separately simulating the adapt air spring pressure under empty wagons and Different Weight state.By the wind regime joint source of giving a dinner for a visitor from afar, only use a test splice (closing with the cutout cock that another test splice is connected), this test splice connects the AS test point of BCU, by PLC control and display unit come control ratio reduction valve adjust pressure with simulated air spring pressure; Utilize pressure tester to measure BC pressure, then the two numerical value is compared, show that whether BCU is normal.
In like manner, this test unit can be used for separately testing metro braking cylinder pressure.A test splice is connect in brake-cylinder pressure test point, in real time brake-cylinder pressure is fed back to PLC by pressure transducer and control and indicative control unit, carry out according to the adapt air spring pressure of setting up and the brake-cylinder pressure of record the judgement whether BCU is qualified.
This test unit can be simulated adapt air spring pressure and the test metro braking cylinder pressure under empty wagons and Different Weight state simultaneously, whether qualifiedly detects BCU.By the wind regime joint source of giving a dinner for a visitor from afar, two test splices connect respectively AS test point and the brake-cylinder pressure test point of BCU, open the cutout cock that AS one end test splice connects, close the cutout cock that BC one end test splice connects, in real time BC pressure and AS pressure feedback are controlled and indicative control unit to PLC by pressure transducer, carried out whether qualifiedly judging according to the two numeric ratio.
This test unit can also be used to detected pressures switch.Wind regime joint is connected to wind regime, and a test splice is connected to pressure switch, first opens cutout cock, fills wind to pressure switch, thus the force value while obtaining pressure switch conducting; Close again cutout cock and open Exhausting plug valve simultaneously, thus the force value while obtaining pressure switch disconnection.
This test unit can also be used to detect the force value of surplus valve and reduction valve.Open a cutout cock, close a cutout cock, by the wind regime joint source of giving a dinner for a visitor from afar, two test splices connect respectively the two ends after connecting with reduction valve in reduction valve two ends or surplus valve two ends or surplus valve, control and display unit increases the set pressure of proportional pressure-reducing valve gradually by PLC, PLC control and display unit on the force value of shown two test splices be the opening pressure of surplus valve and the adjusting pressure of reduction valve.
In order to reach better effect, this test unit also can adopt following measures:
1, further, described PLC control and display unit comprise proportional pressure-reducing valve set pressure control module.Described proportional pressure-reducing valve set pressure control module is used for regulating the set pressure of proportional pressure-reducing valve, thereby sets as required air feed force value.
2, further, described PLC control and display unit also comprise demonstration and record pressure curve module and brake pressure qualification determination module.According to showing and recording pressure curve module and carry out the relation between comparison AS force value and BC force value, draw according to brake pressure qualification determination module the conclusion whether BCU is qualified.
3, further, described control and display unit adopt touch-screen control.Handled easily.
4, further, at described proportional pressure-reducing valve, PLC controls and display unit setting top hole pressure is demand pressure 0-900kPa.
5, further, this test unit also comprises a filtrator, is arranged between wind regime joint and proportional pressure-reducing valve.Its role is to filtered air impurity, Auto-drainage.
6, further, this test unit also comprises an exhaust box, is connected with Exhausting plug valve.Be used for reducing air draft noise.
7, further, described wind regime joint and test splice are rapid-acting coupling.Be easy to be connected with vehicle interface.
In sum, the utility model is a kind of portable subway braking system test device, utilizes this device can meet the judgement of different braking rank brake pressure under general metro braking system bicycle empty and load condition.The utility model is applicable to adopt the debugging of motor vehicle braking system of awaiting a subway of Tie Ke institute brake system, Na Botesike brake system, Ke Nuoer brake system.This portable subway braking system test device can realize that and motion state Imitating vehicle empty and load signal static at railcar, brake-cylinder pressure detect, the record of pressure curve and reading; Under different braking rank, the brake pressure of brake control output is judged; Braking system part is as performance judgments such as surplus valve, reduction valve, pressure switches.It is simple that this test unit has one-piece construction, rationally distributed, and volume is little, and portable feature, particularly this portable subway braking system test device can be worked out the programmed control interface of handled easily, the rapid-acting coupling that vehicle interface adopts easy operating.
Brief description of the drawings
Fig. 1 portable subway braking system test device schematic diagram;
The empty spring simulation of Fig. 2 and brake pressure test
Fig. 3 pressure switch test
Fig. 4 surplus valve and reduction valve test
Each piece number explanation in figure:
1-rapid-acting coupling (A01); 2-filtrator; 3-proportional pressure-reducing valve; 4-cutout cock (C01); 5-pressure transducer (P02); 6-rapid-acting coupling (A02); 7-cutout cock (C02); 8-pressure transducer (P01); 9-rapid-acting coupling (A03); 10-Exhausting plug valve; 11-exhaust box; 12-PLC controls and display unit.
Embodiment
Below in conjunction with accompanying drawing 1-4 and embodiment, the utility model is described in further detail:
As shown in Figure 1, portable subway braking system test device described in the utility model comprises that rapid-acting coupling (A01) 1, filtrator 2, proportional pressure-reducing valve 3, cutout cock (C01) 4, pressure transducer (P02) 5, rapid-acting coupling (A02) 6, cutout cock (C02) 7, pressure transducer (P01) 8, rapid-acting coupling (A03) 9, Exhausting plug valve 10, exhaust box 11, PLC control and display unit 12.
Wherein, rapid-acting coupling (A01) 1, filtrator 2, proportional pressure-reducing valve 3 connect in turn by pipeline.
After proportional pressure-reducing valve 3, be divided into two gas circuits, one tunnel is that proportional pressure-reducing valve 3 is connected in turn with cutout cock (C01) 4, pressure transducer (P02) 5, rapid-acting coupling (A02) 6, and another road is that proportional pressure-reducing valve 3 is connected in turn with cutout cock (C02) 7, pressure transducer (P01) 8, rapid-acting coupling (A03) 9.
Pressure transducer (P02) 5 controls with PLC respectively with pressure transducer (P01) 8 and display unit 12 is connected to form closed-loop path by wire.
PLC controls and display unit 12 is connected by wire with proportional pressure-reducing valve 3.
Exhausting plug valve 10 and exhaust box 11 for being connected in turn by gas circuit between proportional pressure-reducing valve 3 and cutout cock (C02) 7.
One, empty and load simulation experiment method, is shown in Fig. 2.
1. outer air duct one end is connect to external wind source or vehicle wind regime (blast is between 800 ~ 900kPa), an end is connected on rapid-acting coupling (A01) 1 place; By empty spring simulation flexible pipe one termination rapid-acting coupling (A02) 6 places, a termination vehicle brake control apparatus TK01.08AS1, AS2 test point place;
2. cutout cock (C01) 4 is placed in to open position, cutout cock (C02) 7 is placed in and blocks position;
3. control by PLC and display unit 12 control ratio reduction valve are adjusted empty spring pressure, form feedback signals by pressure transducer (P02) 5, PLC controls and display unit is adjusted into set pressure according to control algolithm.
Two, brake pressure method of testing, is shown in Fig. 2.
1. brake-cylinder pressure flexible pipe one end is connected on rapid-acting coupling (A03) 9 places, and an end is connected in vehicle brake control apparatus TK01.12 brake-cylinder pressure test point;
2. implement to keep braking, service braking rank, fast braking, brake hard etc. by railcar controller;
3. in real time brake-cylinder pressure being fed back to PLC by pressure transducer (P01) 8 controls and indicative control unit 12;
4.PLC controls and indicative control unit 12 real time record brake-cylinder pressures provide according to setting up empty spring pressure whether qualified brake-cylinder pressure is judges.
Three, the method for testing of vehicle brake control apparatus (BCU).
1. outer air duct one end is connect to external wind source or vehicle wind regime (blast is between 800 ~ 900kPa), an end is connected on rapid-acting coupling (A01) 1 place; By empty spring simulation flexible pipe one termination rapid-acting coupling (A02) 6 places, a termination vehicle brake control apparatus TK01.08AS1, AS2 test point place;
2. brake-cylinder pressure flexible pipe one end is connected on rapid-acting coupling (A03) 9 places, and an end is connected in vehicle brake control apparatus TK01.12 brake-cylinder pressure test point;
3. cutout cock (C01) 4 is placed in to open position, cutout cock (C02) 7 is placed in and blocks position;
4. control by PLC and display unit 12 control ratio reduction valve are adjusted empty spring pressure, form feedback signals by pressure transducer (P02) 5, PLC controls and display unit is adjusted into set pressure according to control algolithm;
5. in real time brake-cylinder pressure being fed back to PLC by pressure transducer (P01) 8 controls and indicative control unit 12;
6.PLC controls and indicative control unit 12 real time record brake-cylinder pressures provide according to setting up empty spring pressure whether qualified brake-cylinder pressure is judges.
Four, pressure switch test method, is shown in Fig. 3.
1. outer air duct one end is connect to external wind source or vehicle wind regime (blast is between 800 ~ 900kPa), an end is connected on rapid-acting coupling (A01) 1 place; Pressure switch test flexible pipe one end is connected in pantograph control module U13 test point, and an end is connected in rapid-acting coupling (A03) 9;
2. cutout cock (C01) 4 is placed in and blocks position, cutout cock (C02) 7 is placed in open position, fills wind by pantograph control module U13.U04 test point to pressure switch;
3. by the pressure at control and display unit U01 Real-Time Monitoring test point place, record force value in the time of pressure switch conducting;
4. close cutout cock (C02) 7, by Exhausting plug valve 10 air drafts, record force value in the time that pressure switch disconnects.
Five, surplus valve and relief valve function method, be shown in Fig. 4.
1. by test hose one termination parking brake control box B07.L2, termination rapid-acting coupling (A03) 9 places; Simulation airduct one termination parking brake control box B07.11, termination rapid-acting coupling (A02) 6 places;
2. increase gradually proportional pressure-reducing valve set pressure by control and display unit U01, the set pressure value of record in the time that rapid-acting coupling (A03) 9 places start to have pressure is the opening pressure of surplus valve B07.L1;
3. the set pressure that increases gradually proportioning valve is greater than 800kPa, and the test point pressure that records rapid-acting coupling (A03) 9 places is the set pressure of reduction valve B07.L2.
As mentioned above, given scheme content, can derive similar technical scheme in conjunction with the accompanying drawings and embodiments.In every case be the content that does not depart from technical solutions of the utility model, any simple modification, equivalent variations and the modification above embodiment done according to technical spirit of the present utility model, all still belong in the scope of technical solutions of the utility model.
Claims (8)
1. a portable subway braking system test device, is characterized in that: comprise that wind regime joint, proportional pressure-reducing valve, 2 cutout cocks, Exhausting plug valve, 2 test splices, 2 pressure transducers, PLC control and display unit; Wherein wind regime joint is connected by gas circuit with proportional pressure-reducing valve; Proportional pressure-reducing valve is connected respectively by gas circuit with 2 cutout cocks; One of them cutout cock is connected respectively by gas circuit with a pressure transducer, a test splice, and another cutout cock is connected respectively by gas circuit with another pressure transducer, another test splice, Exhausting plug valve; 2 pressure transducers, proportional pressure-reducing valves are connected by wire with PLC control and display unit respectively.
2. portable subway braking system test device according to claim 1, is characterized in that: described PLC controls and display unit comprises proportional pressure-reducing valve set pressure control module.
3. portable subway braking system test device according to claim 2, is characterized in that: described PLC controls and display unit also comprises and shows and record pressure curve module and brake pressure qualification determination module.
4. according to the arbitrary described portable subway braking system test device of claims 1 to 3, it is characterized in that: described control and display unit adopt touch-screen control.
5. according to the arbitrary described portable subway braking system test device of claims 1 to 3, it is characterized in that: at described proportional pressure-reducing valve, PLC controls and display unit setting top hole pressure is demand pressure 0-900kPa.
6. according to the arbitrary described portable subway braking system test device of claims 1 to 3, it is characterized in that: also comprise a filtrator, be arranged between wind regime joint and proportional pressure-reducing valve.
7. according to the arbitrary described portable subway braking system test device of claims 1 to 3, it is characterized in that: also comprise an exhaust box, be connected with Exhausting plug valve.
8. according to the arbitrary described portable subway braking system test device of claims 1 to 3, it is characterized in that: described wind regime joint and test splice are rapid-acting coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320624377.5U CN203785906U (en) | 2013-10-10 | 2013-10-10 | Portable testing device for subway braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320624377.5U CN203785906U (en) | 2013-10-10 | 2013-10-10 | Portable testing device for subway braking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203785906U true CN203785906U (en) | 2014-08-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320624377.5U Withdrawn - After Issue CN203785906U (en) | 2013-10-10 | 2013-10-10 | Portable testing device for subway braking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203785906U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543021A (en) * | 2013-10-10 | 2014-01-29 | 南车青岛四方机车车辆股份有限公司 | Portable subway brake system tester |
-
2013
- 2013-10-10 CN CN201320624377.5U patent/CN203785906U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543021A (en) * | 2013-10-10 | 2014-01-29 | 南车青岛四方机车车辆股份有限公司 | Portable subway brake system tester |
| CN103543021B (en) * | 2013-10-10 | 2016-09-07 | 中车青岛四方机车车辆股份有限公司 | Portable subway brake system tester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88 Patentee after: CRRC QINGDAO SIFANG CO., LTD. Address before: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88 Patentee before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140820 Effective date of abandoning: 20160907 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |