CN-121977818-A - Test system of altitude valve and differential pressure valve for railway vehicle

CN121977818ACN 121977818 ACN121977818 ACN 121977818ACN-121977818-A

Abstract

The invention relates to the technical field of railway vehicles, and provides a testing system of a height valve and a differential pressure valve for a railway vehicle, wherein a differential pressure valve testing module is connected with a first air supply module, the altitude valve testing module is connected with the second air supply module, and the air source control piece is connected between the first air supply module and the second air supply module and used for communicating or stopping the two air supply modules. Through setting up two air feed modules, differential pressure valve test module, difference altitude valve test module, the cooperation can be at the intercommunication with the air supply control piece that the off-state switches, can realize alone test altitude valve or differential pressure valve and two kinds of valves simultaneous test in a flexible way, show and promoted detection efficiency. Meanwhile, the gas circuit is not required to be disassembled or changed when the type of the test valve is switched, so that time and labor are saved. In addition, the two air supply modules can supply air independently, so that independent test or independent air supply type simultaneous test is guaranteed not to interfere with each other, test stability is improved, and the two air supply modules can supply air complementally to each other, so that sufficient and stable air quantity is provided for synchronous test.

Inventors

ZHANG SONG
LI SHENGPENG
LI SHOUSHENG
WEI CHENGLONG
HAO JIANG

Assignees

中车青岛四方机车车辆股份有限公司

Dates

Publication Date: 20260505
Application Date: 20260309

Claims (10)

1. A test system for a height valve and a differential pressure valve for a railway vehicle, comprising: A first air supply module; the differential pressure valve testing module is connected with the first air supply module; A second air supply module; The height valve testing module is connected with the second air supply module; The air source control piece (500), the air source control piece (500) is connected between the first air supply module and the second air supply module, is used for communicating or stopping the first air supply module and the second air supply module.
2. The system for testing a height valve and a differential pressure valve for a railway vehicle according to claim 1, further comprising: A first pressure regulating valve (610), the first pressure regulating valve (610) for regulating a test pressure of the differential pressure valve test module; And a second pressure regulating valve (620), the second pressure regulating valve (620) being used for regulating the test pressure of the altitude valve test module.
3. The system for testing a height valve and a differential pressure valve for a railway vehicle according to claim 2, wherein the first air supply module comprises: a first wind source (110); the first air supply air circuit (120), the first air supply air circuit (120) is connected between the first air source (110) and the differential pressure valve testing module; A first air supply control valve (130), the first air supply control valve (130) being disposed on the first air supply path (120); The second air supply module includes: A second wind source (210); a second air supply path (220), the second air supply path (220) being connected between the second air source (210) and the altitude valve test module; A second air supply control valve (230), the second air supply control valve (230) being disposed on the second air supply path (220); The third air supply air passage (240) is connected between the second air source (210) and the altitude valve testing module, and is arranged in parallel with the second air supply air passage (220); The supercharging device (250) is arranged on the third air supply path (240); And a third air supply control valve (260), wherein the third air supply control valve (260) is arranged on the third air supply air path (240).
4. The system for testing a height valve and a differential pressure valve for a railway vehicle according to claim 3, wherein the differential pressure valve testing module comprises: The first end of the first differential pressure test gas circuit (310) is connected with the first gas supply gas circuit (120), and the second end of the first differential pressure test gas circuit (310) is used for being connected with an A port of a differential pressure valve (810) to be tested; the first end of the second differential pressure test air path (320) is connected with the first air supply air path (120), and the second end of the second differential pressure test air path (320) is used for being connected with a port B of the differential pressure valve (810) to be tested; A first pressure sensor (331), the first pressure sensor (331) being arranged at a second end of the first differential pressure test gas path (310); A second pressure sensor (332), the second pressure sensor (332) being disposed at a second end of the second differential pressure test gas path (320); a first differential pressure test control valve (341), the first differential pressure test control valve (341) being disposed at a second end of the first differential pressure test gas path (310); And a second differential pressure test control valve (342), wherein the second differential pressure test control valve (342) is arranged at a second end of the second differential pressure test gas circuit (320).
5. The system for testing a height valve and a differential pressure valve for a railway vehicle according to claim 4, wherein the differential pressure valve testing module further comprises: A third differential pressure test control valve (343), the third differential pressure test control valve (343) being disposed at a first end of the first differential pressure test gas path (310); a fourth differential pressure test control valve (344), the fourth differential pressure test control valve (344) being disposed at a first end of the second differential pressure test gas path (320); A first differential pressure test reservoir (351), the first differential pressure test reservoir (351) being disposed on the first differential pressure test gas path (310) and being located between the first differential pressure test control valve (341) and the third differential pressure test control valve (343); A second differential pressure test reservoir (352), the second differential pressure test reservoir (352) being disposed on the second differential pressure test gas path (320) and between the second differential pressure test control valve (342) and the fourth differential pressure test control valve (344); A fifth differential pressure test control valve (345), the fifth differential pressure test control valve (345) being disposed on the first differential pressure test gas path (310) and being located between the third differential pressure test control valve (343) and the first differential pressure test reservoir (351); a sixth differential pressure test control valve (346), the sixth differential pressure test control valve (346) being disposed on the second differential pressure test gas path (320) and between the fourth differential pressure test control valve (344) and the second differential pressure test reservoir (352).
6. The system for testing a height valve and a differential pressure valve for a railway vehicle according to claim 5, wherein the differential pressure valve testing module further comprises: A third pressure sensor (333), the third pressure sensor (333) being connected to the first differential pressure test reservoir (351); -a fourth pressure sensor (334), the fourth pressure sensor (334) being connected to the second differential pressure test reservoir (352).
7. The system according to any one of claims 1 to 6, wherein the height valve test module includes: A first height test air path section (410), wherein a first end of the first height test air path section (410) is connected with the second air supply module, and a second end of the first height test air path section (410) is used for being connected with an A port of a height valve (820) to be tested; A second height test air path section (420), wherein a second end of the second height test air path section (420) is used for being connected with a port B of a height valve (820) to be tested; a height valve test reservoir group (430), the height valve test reservoir group (430) being connected with a first end of the second height test air path section (420); a first height test control valve (441), the first height test control valve (441) being disposed at the first height test air path section (410); A second height test control valve (442), the second height test control valve (442) being disposed at the second height test air path section (420); A fifth pressure sensor (451), the fifth pressure sensor (451) being disposed at a second end of the first altitude test air path section (410); A sixth pressure sensor (452), the sixth pressure sensor (452) being disposed at a second end of the second elevation test gas path segment (420).
8. The system for testing a height valve and a differential pressure valve for a railway vehicle according to claim 7, wherein the height valve test reservoir group (430) comprises: a plurality of test reservoir legs (431), each of the test reservoir legs (431) being arranged in parallel with each other and each being connected in series with the second height test air path section (420); And the test air cylinder control valve group (432), wherein the test air cylinder control valve group (432) is connected with each test air cylinder branch (431) and is used for independently controlling the communication state of each test air cylinder branch (431) and the second height test air path section (420).
9. The system for testing a height valve and a differential pressure valve for a railway vehicle according to claim 7, wherein the height valve testing module further comprises: An airtight test gas circuit (460), a first end of the airtight test gas circuit (460) being connected in parallel with a first end of the first height test gas circuit section (410), a second end of the airtight test gas circuit (460) being connected in parallel with a first end of the second height test gas circuit section (420); a gas tightness test control valve (470), the gas tightness test control valve (470) being arranged in the gas tightness test path (460); the test system further comprises: And a height valve test air supply control valve (480), the height valve test air supply control valve (480) being disposed between the second air supply module and the height valve test module.
10. The system for testing a height valve and a differential pressure valve for a railway vehicle according to claim 8, further comprising: The code scanning gun is used for scanning two-dimensional codes of the type of the height valve (820) to be detected and the type of the differential pressure valve (810) to be detected; The controller is connected with the code scanning gun, the first air supply module, the second air supply module, the differential pressure valve testing module, the altitude valve testing module and the air source control piece (500) and is used for respectively controlling the working states of the first air supply module, the second air supply module, the differential pressure valve testing module, the altitude valve testing module and the air source control piece (500) based on the scanning result of the code scanning gun.

Description

Test system of altitude valve and differential pressure valve for railway vehicle Technical Field The invention relates to the technical field of railway vehicles, in particular to a testing system of a height valve and a differential pressure valve for a railway vehicle. Background The height valve and the differential pressure valve are key components of the railway vehicle, and the performance of the height valve and the differential pressure valve is directly related to the safety, the stability and the reliability of the running of the vehicle. The performance of the height valve and the differential pressure valve needs to be tested before the product is loaded. The existing test system can only detect a single valve in the height valve and the differential pressure valve, cannot detect the height valve and the differential pressure valve at the same time, has low detection efficiency, and needs to correspondingly adjust a test gas path when the type of the test valve needs to be replaced, so that the operation process is time-consuming and labor-consuming. Disclosure of Invention In view of the above-described problems, the present invention provides a test system for a height valve and a differential pressure valve for a railway vehicle. The invention provides a testing system of a height valve and a differential pressure valve for a railway vehicle, which comprises a first air supply module, a differential pressure valve testing module, a second air supply module, a height valve testing module and an air source control piece, wherein the differential pressure valve testing module is connected with the first air supply module, the height valve testing module is connected with the second air supply module, and the air source control piece is connected between the first air supply module and the second air supply module and used for communicating or cutting off the first air supply module and the second air supply module. The test system of the height valve and the differential pressure valve for the railway vehicle further comprises a first pressure regulating valve and a second pressure regulating valve, wherein the first pressure regulating valve is used for regulating the test pressure of the differential pressure valve test module, and the second pressure regulating valve is used for regulating the test pressure of the height valve test module. The invention provides a testing system of a height valve and a differential pressure valve for a railway vehicle, wherein a first air supply module comprises a first air source, a first air supply air path and a first air supply control valve, wherein the first air supply air path is connected between the first air source and the differential pressure valve testing module, and the first air supply control valve is arranged on the first air supply air path. The second air supply module comprises a second air source, a second air supply air passage, a second air supply control valve, a third air supply air passage, a supercharging device and a third air supply control valve, wherein the second air supply air passage is connected between the second air source and the height valve testing module, the second air supply control valve is arranged on the second air supply air passage, the third air supply air passage is connected between the second air source and the height valve testing module and is arranged in parallel with the second air supply air passage, the supercharging device is arranged on the third air supply air passage, and the third air supply control valve is arranged on the third air supply air passage. The test system for the height valve and the differential pressure valve for the railway vehicle comprises a first differential pressure test gas circuit, a second differential pressure test gas circuit, a first pressure sensor, a second pressure sensor, a first differential pressure test control valve and a second differential pressure test control valve, wherein a first end of the first differential pressure test gas circuit is connected with a first gas supply gas circuit, a second end of the second differential pressure test gas circuit is connected with a second port of the differential pressure valve to be tested, the first pressure sensor is arranged at a second end of the first differential pressure test gas circuit, the second pressure sensor is arranged at a second end of the second differential pressure test gas circuit, the first differential pressure test control valve is arranged at a second end of the first differential pressure test gas circuit, and the second differential pressure test control valve is arranged at a second end of the second differential pressure test gas circuit. The test system for the height valve and the differential pressure valve for the railway vehicle, provided by the invention, further comprises a third differential pressure test control valve, a fourth differential pressure test control valve, a first dif