CN104089748A - Constant-pressure detection testing machine for air pressure of braking hose - Google Patents
Constant-pressure detection testing machine for air pressure of braking hose Download PDFInfo
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- CN104089748A CN104089748A CN201410372797.8A CN201410372797A CN104089748A CN 104089748 A CN104089748 A CN 104089748A CN 201410372797 A CN201410372797 A CN 201410372797A CN 104089748 A CN104089748 A CN 104089748A
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Abstract
The invention discloses a constant-pressure detection testing machine for air pressure of a braking hose. The constant-pressure detection testing machine comprises a main machine framework, a filter, solenoid valves and a safety door device. The testing machine is characterized by further comprising an air source, a test piece supporting device, air cylinders, pressure measuring connectors, a pressure sensor and a PLC control system, wherein the air source is connected with the air cylinders through the filter and the solenoid valves to provide a testing medium for the testing machine; compressed gas is used as the medium; the air cylinders are arranged on the test piece supporting device and are mounted at one ends of the pressure measuring connectors; the pressure sensor is mounted on the air cylinders and is connected to the PLC control system; the pressure sensor is used for detecting air pressure data of a tested hose and transmitting the air pressure data to the connected PLC control system to finish the detection of the braking hose by the testing machine. The detection device is high in reliability, wide in applicability and accurate in pressure test, and can be used for well estimating blockage and pressure resistance of the braking hose.
Description
Technical field
The invention belongs to the technical field of air-brake coupling hose performance aircraft, particularly air-brake coupling hose high pressure gas compression set is pressed pick-up unit and test method thereof.
Background technology
Air-brake coupling hose voltage endurance capability is one of important indicator of weighing flexible pipe performance, and air-brake coupling hose stops up, reveal or break and all can cause brake failure to cause traffic hazard.China has corresponding air-brake coupling hose test stone (GB16897-2010) at present, has specified air-brake coupling hose voltage endurance capability and test method.Based on this standard regulation, what traditional air-brake coupling hose pressure detection adopted is substantially all that water is tested as medium, and it mainly contains following defect and deficiency: one, test with hydraulic pressure, so high hydraulic pressure, is inevitable to the pollution of surrounding environment; After finishing test, also obtain residual water in necessary cleaning test specimen; Do experiment and can avoid this two problems completely with air pressure.Two, water does not have brake fluid and gas-sensitive to pressure reacting condition, in uniform pressure situation, if water inspection is not leaked, may occur leaking with brake fluid inspection; If but do not leak with air pressure check, just can never leak with brake fluid.Three,, for the air-brake coupling hose that exists trace to reveal, if with hydraulic pressure test, probably air-brake coupling hose surface can only the individual minute bubbles of projection, if people does not note just not realizing a little; But with air pressure experiment, gather pressure differential by pressure transducer and differentiate, will automatically show.
Continue said, traditional air-brake coupling hose pressure detection method above, have following many-sided deficiency: contaminated environment; Multiple operation operation, inconvenient especially, also have great human and material resources waste; Accuracy of detection is low, effect is undesirable.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide the air-brake coupling hose air pressure level pressure that a kind of accuracy of detection is higher to detect testing machine.In order to achieve the above object, technical scheme of the present invention is as follows:
The present invention is achieved by the following technical solutions; propose a kind of air-brake coupling hose air pressure level pressure and detected testing machine; comprise main machine frame, filtrator, solenoid valve device and safety-door device; it is characterized in that, this testing machine also comprises: source of the gas, test specimen bracing or strutting arrangement, cylinder, pressure measuring tie-in, pressure transducer, PLC control system; Source of the gas is connected in cylinder through filter and solenoid valve, and for testing machine provides tested media, described tested media is compressed gas; Cylinder is arranged on test specimen bracing or strutting arrangement, is arranged on pressure measuring tie-in one end, described pressure measuring tie-in connecting test flexible pipe; Pressure transducer is arranged on cylinder, and accesses in PLC control system, and described pressure transducer detects the barometric information of test hose, and sends to access PLC control system.
Wherein said source of the gas comprises high-pressure air source and low-pressure gas source, described filtrator comprises high pressure filter and low-pressure filter, described solenoid valve comprises high-pressure solenoid valve and low-voltage solenoid valve, described high-pressure air source is connected in cylinder through high pressure filter and high-pressure solenoid valve, and described low-pressure gas source is connected in cylinder through low-pressure filter and low-voltage solenoid valve.
Wherein said pressure transducer, high-pressure solenoid valve, cylinder, pressure measuring tie-in and low-voltage solenoid valve are some groups.
Wherein said test specimen bracing or strutting arrangement is provided with rotation regulating mechanism and moving track and the base of angle rotatable, test specimen bracing or strutting arrangement comprises the first test specimen bracing or strutting arrangement and the second test specimen bracing or strutting arrangement of corresponding setting, and in the middle of the first test specimen bracing or strutting arrangement and the second test specimen bracing or strutting arrangement, leaving can be for the spatial accommodation of installation testing flexible pipe, and moving track and base are movably arranged under rotation regulating mechanism and can move left and right;
Wherein form the low pressure obstruction test macro of testing machine and complete the everything driving kinematic train that testing machine detects by described low-pressure gas source, low-voltage solenoid valve, cylinder, pressure measuring tie-in; Formed the high pressure resistant test macro of testing machine by described high-pressure air source, high-pressure solenoid valve, cylinder and pressure measuring tie-in.
Wherein said pressure measuring tie-in is provided with the rotation detachable clamp locking device that is suitable for dissimilar flexible pipe testing requirement.
Wherein said PLC control system is arranged on safety door, described safety door two ends are provided with slide rail, main machine frame two ends are provided with chute, and described safety door is positioned on the dip plane of front portion of testing machine and is slided up and down and open or closed safe door along chute by slide rail.In PLC control system, also comprise a touch-screen, as the interface of man-machine interaction, carry out data demonstration and associative operation, realize automation mechanized operation and intelligent automatic prompt functions.
Wherein the bottom of testing machine main machine frame is divided and is set to tetragonal body structure, and top is divided and is set to the quadrilateral frame that front is incline structure.
Wherein said main machine frame, the first test specimen bracing frame and the second test specimen bracing frame, safety door 11 and moving track and base composition material be aluminum alloy materials.
Beneficial effect of the present invention:
1, by the detection path being formed by source of the gas, filtrator, solenoid valve, cylinder etc., adopt gas as tested media, accuracy of detection is high, effective;
2, applicability is wide, can adapt to all test requests of kind flexible pipe;
3, pressure test is accurate, and whether and voltage endurance capability the obstruction that can assess preferably air-brake coupling hose.
Brief description of the drawings
Fig. 1 is the structural representation that air-brake coupling hose air pressure level pressure of the present invention detects testing machine;
Fig. 2 is each modular construction schematic diagram that air-brake coupling hose air pressure level pressure of the present invention detects testing machine;
Fig. 3 is the construction profile that air-brake coupling hose air pressure level pressure of the present invention detects testing machine.
In figure, each label table is shown:
Main machine frame 1, source of the gas 2, low-pressure gas source 21, high-pressure air source 22, filtrator 3, low-pressure filter 31, high pressure filter 32, solenoid valve 4, low-voltage solenoid valve 41, high-pressure solenoid valve 42, test specimen bracing or strutting arrangement 5, the first test specimen bracing or strutting arrangement 51, the second test specimen bracing or strutting arrangement 52, cylinder 6, cylinder 61, cylinder 62, pressure measuring tie-in 7, pressure measuring tie-in 71, pressure measuring tie-in 72, pressure transducer 8, PLC control system 9, touch-screen 10, safety door 11.
Embodiment
The present invention is further elaborated to tell about embodiment below in conjunction with Fig. 1, Fig. 2 and Fig. 3:
Embodiment 1 air-brake coupling hose air pressure level pressure detects the effect of testing machine equipment composition and each parts:
The present invention proposes a kind of air-brake coupling hose air pressure level pressure and detect testing machine; comprise that main machine frame 1, filtrator 3, solenoid valve device 4 and safety door 11 install; it is characterized in that, this testing machine also comprises: source of the gas 2, test specimen bracing or strutting arrangement 5, cylinder 6, pressure measuring tie-in 7, pressure transducer 8 and PLC control system 9; Source of the gas 2 is connected in cylinder 6 for testing machine provides tested media through filter 3 and solenoid valve 4, and tested media is compressed gas; Cylinder 6 is arranged on test specimen bracing or strutting arrangement 5, is arranged on pressure measuring tie-in 7 one end, and in the time that testing machine detects, test hose two ends all connect pressure measuring tie-in; Pressure transducer 8 is arranged on cylinder 6, and accesses in PLC control system 9, and described pressure transducer 8 detects the barometric information of test hose, and sends to access PLC control system 9.The order of connection that consists of the each parts of testing machine detection system above connected mode is followed successively by source of the gas 2, filtrator 3, solenoid valve 4, cylinder 61, pressure measuring tie-in 71, test hose, pressure measuring tie-in 72, cylinder 62, pressure transducer 8 and PLC control system 9, complete the detection of testing machine by detecting the data variation of test hose front and back air pressure, and the signal gathering by PLC control system and pressure transducer forms operation control system, realize pressure, time, the control of relevant action.
Source of the gas 2 comprises low-pressure gas source 21 and high-pressure air source 22, and low-pressure gas source gaseous tension size is 0.3MPa-0.6MPa, and the gaseous tension size of high-pressure air source 22 is 0.5MPa-25.0MPa, is preferably 13.5MPa-15.0PMa; Filtrator 3 comprises that low-pressure filter 31 and high pressure filter 32 are connected respectively the impurity filtering in pressure gas with low-pressure gas source and high-pressure air source; Solenoid valve 4 comprises low-voltage solenoid valve 41 and high-pressure solenoid valve 42, and entering and discharge by high-pressure solenoid valve 42 of gas controlled; Low-pressure gas source 21 is connected in cylinder through low-pressure filter 32 and low-voltage solenoid valve 41, and high-pressure air source 21 is connected in cylinder through high pressure filter 32 and high-pressure solenoid valve 42.
This air-brake coupling hose air pressure level pressure detects testing machine many group detection systems, and pressure transducer 8, low-voltage solenoid valve 41, cylinder 6, pressure measuring tie-in 7 and high-pressure solenoid valve 42 are some groups, can carry out many group tests simultaneously.
Test specimen bracing or strutting arrangement arranges 5 rotation regulating mechanism and moving track and the bases that have an angle rotatable, test specimen bracing or strutting arrangement comprises the first test specimen bracing or strutting arrangement 51 and the second test specimen bracing or strutting arrangement 52 of corresponding setting, and in the middle of the first test specimen bracing or strutting arrangement 51 and the second test specimen bracing or strutting arrangement 52, leaving can be for the spatial accommodation of installation testing flexible pipe, and moving track and base are movably arranged under rotation regulating mechanism and can move left and right;
This air-brake coupling hose air pressure level pressure detects testing machine detection system and detects in two steps, comprise low pressure obstruction test and high pressure resistant test, the low pressure that is made up of testing machine described low-pressure gas source 21, low-voltage solenoid valve 41, cylinder 6, pressure measuring tie-in 7 is stopped up test macro and completes testing machine the driving kinematic train that detects everything; Formed the high pressure resistant test macro of testing machine by high-pressure air source 22, high-pressure solenoid valve 42, cylinder 6 and pressure measuring tie-in.
Be arranged on the rotation detachable clamp locking device that pressure measuring tie-in 7 on test specimen bracing or strutting arrangement 5 is provided with flexible pipe testing requirements such as being suitable for different tube diameters size and different materials type.
PLC control system is installed 9 on safety door 11, and safety door 11 two ends are provided with slide rail, and main machine frame two ends are provided with chute, and safety door 11 is positioned on the dip plane of front portion of testing machine and is slided up and down and open or closed safe door along chute by slide rail.In PLC control system 9, also comprise a touch-screen 10, as the interface of man-machine interaction, carry out data demonstration and associative operation, realize automation mechanized operation and intelligent automatic prompt functions.
The bottom of testing machine main machine frame 1 is divided and is set to tetragonal body structure, and top is divided and is set to the quadrilateral frame that front is incline structure.The composition material of main machine frame 1, the first test specimen bracing frame 51, the second test specimen bracing frame 52, safety door 11 and moving track and base is aluminum alloy materials.
Embodiment 2 air-brake coupling hose air pressure level pressure detect the course of work of testing machine:
Connect low-pressure gas source 21, high-pressure air source 22 and power supply, open source of the gas air valve, turn on the power switch, make high-pressure air source 22 arrive high-pressure solenoid valve 42 after high pressure filter 32 filters, make low-pressure gas source 21 arrive low-voltage solenoid valve 41 after low-pressure filter 31 filters, adjust the detachable fixture locking device of rotation of pressure measuring tie-in 7, to adapt to tested flexible pipe, check that whether pressure measuring tie-in 7 is intact, and manual operation checks whether each action puts in place, confirm that each position all prepares errorlessly, then select automatic operation state at man-machine interface touch-screen 10, move and test specimen is fixed and used the fixture locking device of pressure measuring tie-in 7 seal test specimen two ends by cylinder 6, press foot-switch, enter auto test flow: first detect test hose pipeline by low pressure gas and whether connect, low pressure is stopped up measurement circuit: the tested media in low-pressure gas source 21 is passed through successively low-voltage solenoid valve 41 after low-pressure filter 31 is removed impurity, cylinder 61, pressure measuring tie-in 71, test hose, pressure measuring tie-in 72, cylinder 62, pressure transducer 8 receives collection signal and sends the low pressure that PLC control system 9 and touch-screen 10 form testing machine to and stop up test macro, then put into gas by high-pressure solenoid valve 41 and carry out high pressure resistant test, high pressure resistant measurement circuit is: the tested media in high-pressure air source 22 is successively by high-pressure solenoid valve 42, cylinder 61, pressure measuring tie-in 71, test hose, pressure measuring tie-in 72, cylinder 62 after high pressure filter 32 is removed impurity, and pressure transducer 8 receives collection signal and send PLC control system 9 and touch-screen 10 to and form the high pressure resistant test macro of testing machine.The driving kinematic train that wherein low-pressure gas source 21, cylinder 6, low-voltage solenoid valve 41, pressure measuring tie-in 7 form testing machine completes testing machine low pressure and stops up the everything of test and high pressure resistant test.Whether the pressure data gathering by man-machine interface touch-screen 10, PLC electric control system 9 and pressure transducer 8 completes low voltage experiment and stops up, and high pressure resistant test.If have substandard product in last test process, red led is bright, and reports to the police, and presses reset knob, and stop alarm is changed test hose and started next round test.
Above embodiment and test method are detailed description of the invention; can not assert that the specific embodiment of the present invention is confined to these explanations; for general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deductions and substitute, all should be considered as belonging to protection scope of the present invention.
Claims (7)
1. an air-brake coupling hose air pressure level pressure detects testing machine; comprise main machine frame, filtrator, solenoid valve device and safety-door device; it is characterized in that, this testing machine also comprises: source of the gas, test specimen bracing or strutting arrangement, cylinder, pressure measuring tie-in, pressure transducer, PLC control system; Source of the gas is connected in cylinder through filter and solenoid valve, and for testing machine provides tested media, described tested media is compressed gas; Cylinder is arranged on test specimen bracing or strutting arrangement, is arranged on pressure measuring tie-in one end, described pressure measuring tie-in connecting test flexible pipe; Pressure transducer is arranged on cylinder, and accesses in PLC control system, and described pressure transducer detects the barometric information of test hose, and sends to access PLC control system.
2. detect testing machine according to a kind of air-brake coupling hose air pressure level pressure described in right 1, it is characterized in that, described source of the gas comprises high-pressure air source and low-pressure gas source, described filtrator comprises high pressure filter and low-pressure filter, described solenoid valve comprises high-pressure solenoid valve and low-voltage solenoid valve, described high-pressure air source is connected in cylinder through high pressure filter and high-pressure solenoid valve, and described low-pressure gas source is connected in cylinder through low-pressure filter and low-voltage solenoid valve.
3. detect testing machine according to a kind of air-brake coupling hose air pressure level pressure described in right 1, it is characterized in that, described pressure transducer, high-pressure solenoid valve, cylinder, pressure measuring tie-in and low-voltage solenoid valve are some groups.
4. detect testing machine according to a kind of air-brake coupling hose air pressure level pressure described in right 1, it is characterized in that, described test specimen bracing or strutting arrangement is provided with rotation regulating mechanism and moving track and the base of angle rotatable, test specimen bracing or strutting arrangement comprises the first test specimen bracing or strutting arrangement and the second test specimen bracing or strutting arrangement of corresponding setting, and in the middle of the first test specimen bracing or strutting arrangement and the second test specimen bracing or strutting arrangement, leaving can be for the spatial accommodation of installation testing flexible pipe, and moving track and base are movably arranged under rotation regulating mechanism and can move left and right.
5. detect testing machine according to a kind of air-brake coupling hose air pressure level pressure described in right 1; it is characterized in that, the low pressure that is made up of testing machine described low-pressure gas source, low-voltage solenoid valve, cylinder, pressure measuring tie-in is stopped up test macro and is completed the everything driving kinematic train that testing machine detects; Formed the high pressure resistant test macro of testing machine by described high-pressure air source, high-pressure solenoid valve, cylinder and pressure measuring tie-in.
6. air-brake coupling hose air pressure level pressure monitoring test machine according to claim 1, is characterized in that, described pressure measuring tie-in is provided with the rotation detachable clamp locking device that is suitable for dissimilar flexible pipe testing requirement.
7. air-brake coupling hose air pressure level pressure monitoring test machine according to claim 1, it is characterized in that, described PLC control system is arranged on safety door, described safety door two ends are provided with slide rail, main machine frame two ends are provided with chute, and described safety door is slided up and down and opens or closed safe door along chute by slide rail.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104406744A (en) * | 2014-12-13 | 2015-03-11 | 芜湖哈特机器人产业技术研究院有限公司 | Detecting tooling for vacuum and high-pressure leakproofness of brake caliper |
| CN106052975A (en) * | 2016-07-16 | 2016-10-26 | 侯华恩 | Automatic no-water pressure tester |
| CN106969911A (en) * | 2017-04-28 | 2017-07-21 | 襄阳国铁机电股份有限公司 | A kind of locomotive brake hose test device |
| CN108918053A (en) * | 2018-07-12 | 2018-11-30 | 罗莱生活科技股份有限公司 | Exchange heat mattress sealing ventilation tester and test method |
| CN109990960A (en) * | 2019-03-27 | 2019-07-09 | 山东高速轨道交通集团有限公司益羊铁路管理处 | Car braking hose experimental rig |
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| CN108918053A (en) * | 2018-07-12 | 2018-11-30 | 罗莱生活科技股份有限公司 | Exchange heat mattress sealing ventilation tester and test method |
| CN109990960A (en) * | 2019-03-27 | 2019-07-09 | 山东高速轨道交通集团有限公司益羊铁路管理处 | Car braking hose experimental rig |
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