CN202582891U - Testing stand of breathing-type safety valve of railway tank car - Google Patents
Testing stand of breathing-type safety valve of railway tank car Download PDFInfo
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- CN202582891U CN202582891U CN 201220241504 CN201220241504U CN202582891U CN 202582891 U CN202582891 U CN 202582891U CN 201220241504 CN201220241504 CN 201220241504 CN 201220241504 U CN201220241504 U CN 201220241504U CN 202582891 U CN202582891 U CN 202582891U
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- railway tank
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Abstract
The utility model discloses a testing stand of a breathing-type safety valve of a railway tank car. The testing stand of the breathing-type safety valve of the railway tank car is characterized in that the testing stand of the breathing-type safety valve of the railway tank car includes four main parts of a clamping tool mechanism, a dismounting mechanism, a pneumatic part and an electronic control part. The clamping tool mechanism is composed of a snapping air cylinder, a press hook and a connection rod. The dismounting mechanism is composed of a reduction motor, a lifting air cylinder, a dismounting head and a main shaft. The pneumatic part is composed of an electromagnetic valve, a pneumatic valve, a pressure meter, a vacuum pump, a storage air cylinder and a buffer air cylinder. The electronic control system is composed of a PLC and a touch screen. The PLC controls testing actions of the whole testing stand of the breathing-type safety valve of the railway tank. Since the stability and the anti-interference capability of the PLC are comparatively strong, the integral stability of the testing stand of the breathing-type safety valve of the railway tank is improved. The touch screen displays testing states in real time and parameters can be selected conveniently and quickly. The testing stand of the breathing-type safety valve of the railway tank is reasonable in design, advanced in technique, and comparatively high in automation degree. The testing stand of the breathing-type safety valve of the railway tank is an ideal device testing performance of the safety valve automatically and accurately according to a technical condition of the novel breathing-type safety valve of the railway tank car.
Description
Technical field
The utility model relates to a kind of tank car breathing type safety valve testing table, belongs to a kind of special-purpose testing table of micro-processor controlled tank car performance of breathing relief valve test.
Background technology
As everyone knows, the breathing relief valve after the new assembling of tank car at present need make a service test, i.e. release valve test, suction valve test and impermeability test.Release valve is tested: reduction valve is transferred to require pressure (sticking oil, edible oil: 100 ± 20kpa; Light oil: 150 ± 20kpa), below release valve, send into high-pressure blast, in the time of in test pressure rises to the adjustment pressure limit gradually; Release valve will carry out drainage; If when test pressure rose in the adjustment pressure limit, release valve is drainage not, or test pressure does not rise to when adjusting in the pressure limit; Release valve is drainage, and this moment, scalable valve gap screw thread was regulated.Suction valve test: close all valves, start vacuum pump, bleed, when being lower than ambient pressure 1.5kPa～2kPa, if do not descend the exhaust of explanation suction valve, can be in cushioning adjustment under the spring, or change spring.After the stand the test, fastening split nut is put on valve body and valve gap with seal wire, carry out lead sealing, carries out impermeability test after the lead sealing.Old-fashioned method test release valve and suction valve are to suppress through manual work; By tensimeter testing inner real-time pressure; Impermeability test only depends on brush suds test, and causes that test error is big, effect is unstable, does not meet the standard of tank car breathing relief valve test gradually.This traditional test method lags behind the objective requirement of tank car safety, heavy duty, speed-raising now greatly simultaneously.The test method of this backwardness, not only labor strength is big, and production efficiency is low, and the judgement that is easy to make a mistake, and the safety of railway transportation hidden danger that causes thus is hardly imaginable.
Summary of the invention
In order to overcome above-mentioned deficiency, it is a kind of through PLC control that the utility model provides, and realized the robotization of process of the test.System configuration high-precision pressure transmitter greatly improves measuring accuracy, has guaranteed the accuracy of test figure.Pressure in operating condition of test in the process of the test and the gas circuit changes and can be presented on the touch-screen intuitively in real time; Video data makes entire test more directly perceived; And can conveniently select parameter, can satisfy existing different kinds of railways tank car breathing relief valve testing requirements.The active part of equipment adopts bounce cylinder, vacuum pump control testpieces internal pressure, the direct reaction test force value of sensor.And should produce drainage when requiring internal pressure changed according to iron mark, suck and dynamically adjust, satisfy the testing requirements that has different kinds of railways tank car breathing relief valve now fully.
To achieve these goals, the utility model adopts following technical scheme:
A kind of tank car breathing type safety valve testing table is characterized in that complete machine comprises jig mechanism (1), mechanism for assembling-disassembling (2), pneumatic part (3) and automatically controlled part (4) four major parts.Said jig mechanism (1) is positioned at mechanism for assembling-disassembling (2) top; Said jig mechanism (1) is made up of chucking cylinder (5), pressure hook (6), connecting rod (7), and said chucking cylinder (5) is connected through connecting rod (7) with pressure hook (6); Said mechanism for assembling-disassembling (2) is made up of reducing motor (8), main shaft (9), lift cylinder (10), Tool for detaching (11); Said lift cylinder (10) is positioned at Tool for detaching (11) top; And through the oscilaltion of main shaft (9) drive Tool for detaching (11); Said reducing motor (8) is positioned at Tool for detaching (11) rear side, and can drive Tool for detaching (11) rotation; Said pneumatic part is made up of solenoid valve, Pneumatic valve, tensimeter, vacuum pump, storage reservoir, buffering reservoir; Saidly form by PLC, touch-screen by electric-control system; The test action of said PLC control whole test platform; Since the stability of PLC and antijamming capability force the resistance to overturning raising of testing table, said touch-screen shows the state of test in real time, can conveniently select parameter.
The beneficial effect of the utility model: form by jig mechanism, mechanism for assembling-disassembling, pneumatic part and automatically controlled part four major parts.This device design is reasonable, technology is advanced, automaticity is higher, is the ideal equipment of the performance of safety valve being carried out automatically, accurately checking according to the novel breathing relief valve technical conditions of tank car.Its principal feature is following:
1.1 adopt the PLC of stable performance to control the test action of whole test platform, because the stability of PLC and antijamming capability are forced to such an extent that the resistance to overturning of testing table improves greatly;
1.2 system configuration high-precision pressure transmitter greatly improves measuring accuracy, has guaranteed the accuracy of test figure;
Can be presented on the touch-screen intuitively in real time 1.3 the pressure in operating condition of test in the process of the test and the gas circuit changes, and conveniently select parameter;
1.4 the main body jig partly adopts welded steel plate, body intensity is high, stable performance, long service life;
1.5 the integrated fixing worktable of complete machine integrates mechanical, pneumatic, micro-control, electric, and is simple to operate, material loading is convenient, and intuitive display has sound and light alarm and printing function.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1: the front view of the utility model structure
Fig. 2: the right view of the utility model structure
Among the figure: 1, jig mechanism; 2, mechanism for assembling-disassembling; 3, pneumatic part; 4, automatically controlled part; 5, chucking cylinder; 6, pressure hook; 7, connecting rod; 8, reducing motor; 9, main shaft; 10, lift cylinder; 11, Tool for detaching.
Embodiment
For above-mentioned purpose, the feature and advantage that make the utility model can be more obviously understandable, the utility model is done further explain below in conjunction with accompanying drawing and embodiment.
Embodiment: below in conjunction with accompanying drawing 1,2, the principle of work of summary tank car breathing type safety valve testing table, see also accompanying drawing 1,2: complete machine comprises jig mechanism (1), mechanism for assembling-disassembling (2), pneumatic part (3) and automatically controlled part (4) four major parts.
See also accompanying drawing 1,2: (is example with testpieces A41X type safety valve) at first confirmed to treat testpieces to be positioned in the jig mechanism (1) testpieces, and chucking cylinder (5) is exerted pressure to pressure hook (6) through connecting rod (7), and the fixation test part fixedly finishes, on-test.Test the test of 1 release valve: bounce cylinder is suppressed testpieces through airduct, and (the light oil tank wagon level pressure is 150kPa ± 20kPa when pressure reaches level pressure; Sticking oil, edible oil tank car level pressure are 100kPa420kPa), release valve will carry out drainage, and it is qualified when the force value no change of sensor measurement, to be; Can get into next test, if if test pressure rises to when adjusting in the pressure limit, release valve is drainage not; Or test pressure does not rise to when adjusting in the pressure limit; Release valve is drainage, and this moment, scalable valve gap screw thread was regulated, and adjustment process is that the lift cylinder (10) in the mechanism for assembling-disassembling (2) drives Tool for detaching (11) decline through main shaft (9); The testpieces valve gap is fixed; Reducing motor (8) drives Tool for detaching (11) and together rotation forward or backwards of testpieces, regulates testpieces valve gap screw thread with this, makes its performance reach qualified.Test the test of 2 suction valves: close all valves, start vacuum pump, bleed; When being lower than ambient pressure 1.5kPa～2kPa; The explanation suction valve exhaust if do not descend, it is qualified to be, and can get into next step test; Then can adjust if change, or the mode of replacing spring makes it qualified through cushioning under the testpieces inner spring.At last testpieces is carried out lead sealing; 3 impermeability tests that make an experiment after the lead sealing, test(ing) medium is an air, shows that the difference of impermeability test pressure and opening pressure is not more than 30kPa; Be certified products; Test stops, and blanking is carried out data at last and preserved, prints, uploads HMIS. and carry out next testpieces performance test according to above step.
Claims (1)
1. a tank car breathing type safety valve testing table is characterized in that complete machine comprises jig mechanism (1), mechanism for assembling-disassembling (2), pneumatic part (3) and automatically controlled part (4) four major parts, and said jig mechanism (1) is positioned at mechanism for assembling-disassembling (2) top; Said jig mechanism (1) is made up of chucking cylinder (5), pressure hook (6), connecting rod (7), and said chucking cylinder (5) is connected through connecting rod (7) with pressure hook (6); Said mechanism for assembling-disassembling (2) is made up of reducing motor (8), main shaft (9), lift cylinder (10), Tool for detaching (11); Said lift cylinder (10) is positioned at Tool for detaching (11) top; And through the oscilaltion of main shaft (9) drive Tool for detaching (11); Said reducing motor (8) is positioned at Tool for detaching (11) rear side, and can drive Tool for detaching (11) rotation; Said pneumatic part is made up of solenoid valve, Pneumatic valve, tensimeter, vacuum pump, storage reservoir, buffering reservoir; Saidly form by PLC, touch-screen by electric-control system; The test action of said PLC control whole test platform; Since the stability of PLC and antijamming capability force the resistance to overturning raising of testing table, said touch-screen shows the state of test in real time, can conveniently select parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220241504 CN202582891U (en) | 2012-05-19 | 2012-05-19 | Testing stand of breathing-type safety valve of railway tank car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220241504 CN202582891U (en) | 2012-05-19 | 2012-05-19 | Testing stand of breathing-type safety valve of railway tank car |
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| Publication Number | Publication Date |
|---|---|
| CN202582891U true CN202582891U (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220241504 Expired - Fee Related CN202582891U (en) | 2012-05-19 | 2012-05-19 | Testing stand of breathing-type safety valve of railway tank car |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278314A (en) * | 2013-04-28 | 2013-09-04 | 江南大学 | Safety valve check bench |
| CN106239432A (en) * | 2016-08-25 | 2016-12-21 | 太原鹏跃电子科技有限公司 | Breathing relief valve automatic classifying assembling device |
| CN108663200A (en) * | 2017-03-27 | 2018-10-16 | 齐齐哈尔四达铁路设备有限责任公司 | Rolling stock breather valve, lower discharge valve multi-function test stand |
| CN109556856A (en) * | 2018-12-28 | 2019-04-02 | 太原鹏跃电子科技有限公司 | A kind of inlet valve testing stand |
| CN112834206A (en) * | 2021-01-06 | 2021-05-25 | 芜湖优能自动化设备有限公司 | Full-automatic pressure regulating test equipment of pressure valve |
| CN113012545A (en) * | 2021-02-05 | 2021-06-22 | 西安交通大学 | Device for simulating human body breathing flow |
-
2012
- 2012-05-19 CN CN 201220241504 patent/CN202582891U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278314A (en) * | 2013-04-28 | 2013-09-04 | 江南大学 | Safety valve check bench |
| CN103278314B (en) * | 2013-04-28 | 2015-08-12 | 江南大学 | Safety valve checkout platform |
| CN106239432A (en) * | 2016-08-25 | 2016-12-21 | 太原鹏跃电子科技有限公司 | Breathing relief valve automatic classifying assembling device |
| CN106239432B (en) * | 2016-08-25 | 2017-12-12 | 太原鹏跃电子科技有限公司 | Breathing relief valve automatic classifying assembling device |
| CN108663200A (en) * | 2017-03-27 | 2018-10-16 | 齐齐哈尔四达铁路设备有限责任公司 | Rolling stock breather valve, lower discharge valve multi-function test stand |
| CN109556856A (en) * | 2018-12-28 | 2019-04-02 | 太原鹏跃电子科技有限公司 | A kind of inlet valve testing stand |
| CN112834206A (en) * | 2021-01-06 | 2021-05-25 | 芜湖优能自动化设备有限公司 | Full-automatic pressure regulating test equipment of pressure valve |
| CN113012545A (en) * | 2021-02-05 | 2021-06-22 | 西安交通大学 | Device for simulating human body breathing flow |
| CN113012545B (en) * | 2021-02-05 | 2022-12-06 | 西安交通大学 | Device for simulating human body breathing flow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20160519 |