CN103411784B - The proving installation of linear valve pneumatic actuator - Google Patents
The proving installation of linear valve pneumatic actuator Download PDFInfo
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- CN103411784B CN103411784B CN201310337913.8A CN201310337913A CN103411784B CN 103411784 B CN103411784 B CN 103411784B CN 201310337913 A CN201310337913 A CN 201310337913A CN 103411784 B CN103411784 B CN 103411784B
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Abstract
The present invention relates to the proving installation of linear valve pneumatic actuator, the proving installation that can carry out the valve used pneumatic actuator that no-load test, load test, leakage test, strength test and operating life are tested to single-acting linear valve pneumatic actuator and double acting linear valve pneumatic actuator is respectively provided, adopt two voltage stabilizing gas-holder to back pressure cylinder two ends air feed, obtain output torque or the push-and-pull force value of testing needs, thus the higher valve used pneumatic actuator of precision can be tested out.
Description
Technical field
The present invention relates to the proving installation of valve used pneumatic actuator, especially relate to the proving installation of linear valve pneumatic actuator.
Background technology
Along with the development of automatic control technology, Cemented filling construction more and more tends to adopt Based Intelligent Control and Long-distance Control, the valve of automatic control technology instead of manually-operated valve, greatly reduce the danger of operating personnel's closely operated valve pressure elements, improve work efficiency, realize the opening and closing of piping system, the regulation and control of flow, valve automatic executive device comprises electrodynamic type, electromagnetic type, fluid pressure type and pneumatic type actuator, wherein single-acting linear valve pneumatic actuator and double acting linear valve pneumatic actuator develop for some years recently and the Valve controlling product the most rapidly that comes into operation, in generating plant, chemical industry, oil refining etc. are applied more and more widely in the higher pipe-line transportation system of safety requirements, its advantage can realize straight line to control or Angle ambiguity, keying speed is fast, can realize when moment is less opening and closing in 1s, working environment adaptability is good, also can not to environment even if there is leakage, there is explosion-proof, can inflammable, explosive, operation in the rugged surroundings such as strong magnetic and intense radiation, work as system cut-off, to die source, valve reset can be made during break signal to the home of a setting in advance, make piping system protected.Its weak point is, do not have and no-load test is carried out to single-acting linear valve pneumatic actuator and double acting linear valve pneumatic actuator, load test, leakage test, the proving installation of the valve used pneumatic actuator of strength test and operating life test, valve used pneumatic actuator quality cannot be ensured, orthoscopic and double acting swinging valve used pneumatic actuator quality instability is found after coming into operation, the force value exported after using a period of time does not reach the requirement of regulation, cause control inaccurate, and rubber film in single-acting linear valve pneumatic actuator and double acting linear valve pneumatic actuator or rubber seal, due to the wearing and tearing that sliding friction causes, or the ageing of rubber phenomenon of poor quality, cylinder seal is easily caused to leak, cause output force value inadequate, open and close the phenomenons such as inefficacy, because cylinder piston polished rod and composite bearing realize sealing, surface is with certain oil film, long-time pipeline scene exposes and is vulnerable to on-the-spot dust bonding, jam and jumping phenomena when causing cylinder to open and close, and cause cylinder seal leakage failure.The quality problems of above-mentioned single-acting linear valve pneumatic actuator and double acting linear valve pneumatic actuator usually neglect by people, finally causes realizing pipeline and go wrong when automatically controlling, and the safety hazards caused occurs.
Summary of the invention
Technical matters to be solved by this invention is: provide the proving installation that can carry out the valve used pneumatic actuator that no-load test, load test, leakage test, strength test and operating life are tested to single-acting linear valve pneumatic actuator and double acting linear valve pneumatic actuator respectively.
One of technical scheme of the present invention is: comprise the first gas-holder, the second gas-holder, the 3rd gas-holder, 3 position-5 way Double-control solenoid valve, the first two-position five-way single control solenoid valve, the second two-position five-way single control solenoid valve, automation control system, single-acting orthoscopic valve pneumatic actuating unit sample, back pressure cylinder, source of the gas, water-separating gas filter, inlet pressure gauge, reduction valve, delivery gauge, oil sprayer, high-pressure solenoid valve, high pressure air exhaust valve and blowout-back pressure gauge
Described source of the gas, water-separating gas filter, inlet pressure gauge, reduction valve, delivery gauge, oil sprayer, high-pressure solenoid valve, high pressure air exhaust valve are connected by tracheae successively with blowout-back pressure gauge,
Described blowout-back pressure gauge is connected with single-acting orthoscopic valve pneumatic actuating unit sample by tracheae, tracheae between blowout-back pressure gauge and single-acting orthoscopic valve pneumatic actuating unit sample is provided with high-pressure pressure sensor, described high-pressure pressure sensor is connected with automation control system, high-pressure pressure sensor by the high-pressure feedback signal transmission that detects to automation control system
Described first gas-holder is provided with the first gas-holder vent valve, the first gas-holder steam supply valve, the first reservoir pressure sensor, the first gas-holder boost electromagnetic valve, the first gas-holder pressure release electromagnetic valve, the first gas-holder safety valve and the first air tank pressure gauge,
Described second gas-holder is provided with the second gas-holder vent valve, the second gas-holder steam supply valve, the second reservoir pressure sensor, the second gas-holder boost electromagnetic valve, the second gas-holder pressure release electromagnetic valve, the second gas-holder safety valve and the second air tank pressure gauge,
Described 3rd gas-holder is provided with the 3rd gas-holder vent valve, the 3rd gas-holder steam supply valve, the 3rd reservoir pressure sensor, the 3rd gas-holder boost electromagnetic valve, the 3rd gas-holder pressure release electromagnetic valve, the 3rd gas-holder safety valve and the 3rd air tank pressure gauge,
Described first gas-holder boost electromagnetic valve, the second gas-holder boost electromagnetic valve and the 3rd gas-holder boost electromagnetic valve are all connected with the tracheae between oil sprayer and high-pressure solenoid valve by tracheae, pressurized air is penetrated in the first gas-holder, the second gas-holder and the 3rd gas-holder
Described first reservoir pressure sensor, the second reservoir pressure sensor are all connected with automation control system with the 3rd reservoir pressure sensor, respectively by the first reservoir pressure feedback signal, the second reservoir pressure feedback signal and the 3rd reservoir pressure feedback signal transmission that detect on automation control system
Described first gas-holder steam supply valve is connected with 3 position-5 way Double-control solenoid valve by tracheae, described 3 position-5 way Double-control solenoid valve is connected with the tracheae between high-pressure solenoid valve and high pressure air exhaust valve by tracheae, penetrated in single-acting orthoscopic valve pneumatic actuating unit sample by the 3 position-5 way Double-control solenoid valve pressurized air controlled in the first gas-holder
Described back pressure cylinder comprises back pressure cylinder first port and back pressure cylinder second port,
Described second gas-holder steam supply valve is connected with the first two-position five-way single control solenoid valve by tracheae, described first two-position five-way single control solenoid valve is connected with back pressure cylinder first port by tracheae, penetrated in back pressure cylinder first port by the pressurized air in the first two-position five-way single control solenoid control second gas-holder
Described 3rd gas-holder steam supply valve is connected with the second two-position five-way single control solenoid valve by tracheae, described second two-position five-way single control solenoid valve is connected with back pressure cylinder second port by tracheae, penetrated in back pressure cylinder second port by the pressurized air in the second two-position five-way single control solenoid control the 3rd gas-holder
3 position-5 way Double-control solenoid valve, the first two-position five-way single control solenoid valve, the second two-position five-way single control solenoid valve, the first gas-holder boost electromagnetic valve, the first gas-holder pressure release electromagnetic valve, the second gas-holder boost electromagnetic valve, the second gas-holder pressure release electromagnetic valve, the 3rd gas-holder boost electromagnetic valve, the 3rd gas-holder pressure release electromagnetic valve are all connected with automation control system with the control line of high-pressure solenoid valve
3 position-5 way Double-control solenoid valve, the first two-position five-way single control solenoid valve, the second two-position five-way single control solenoid valve, the first gas-holder boost electromagnetic valve, the first gas-holder pressure release electromagnetic valve, the second gas-holder boost electromagnetic valve, the second gas-holder pressure release electromagnetic valve, the 3rd gas-holder boost electromagnetic valve, the 3rd gas-holder pressure release electromagnetic valve and high-voltage electromagnetic valve events is controlled by automation control system
Single-acting orthoscopic valve pneumatic actuating unit sample is arranged on fixed support, and single-acting orthoscopic valve pneumatic actuating unit sample comprises single-acting orthoscopic valve pneumatic actuating unit sample piston rod, and back pressure cylinder comprises back pressure piston rod,
Shaft coupling, transmission rod, position indicator pointer, position transducer and force value sensor is provided with between described single-acting orthoscopic valve pneumatic actuating unit sample piston rod and back pressure piston rod, described transmission rod one end is connected with single-acting orthoscopic valve pneumatic actuating unit sample piston rod by shaft coupling, the transmission rod other end is connected with back pressure piston rod by force value sensor, described position indicator pointer is arranged on transmission rod, position transducer is arranged on fixed support, position indicator pointer matches with position transducer
Described position transducer is connected with automation control system, is transferred on automation control system by position transducer by position feed back signal,
Described force value sensor is connected with automation control system, by force value sensor by force value feedback signal transmission on automation control system.
The no-load test of single-acting linear valve pneumatic actuator, leakage test, strength test test pressurized air by source of the gas through water-separating gas filter, inlet pressure gauge, reduction valve, delivery gauge, oil sprayer, high-pressure solenoid valve, high pressure air exhaust valve and blowout-back pressure gauge are connected on single-acting orthoscopic Pneumatic actuator sample by tracheae successively, in test process by high-pressure pressure sensor by high-pressure feedback signal transmission on automation control system, high-pressure solenoid valve is controlled to the supercharging of single-acting single-acting orthoscopic Pneumatic actuator sample by automation control system, ensure that actual pressure Automatic-boosting is tested to the force value of setting.No-load test, can test its action whether steadily, jam and creeping phenomenon, leakage test can carry out the maximum working pressure (MWP) experimental test that force value is 1.1 times, and the air capacity leaked out from respective back pressure side does not allow to exceed (3+0.15D) cm
3/ min (standard state), the air capacity leaked out from end cap, output shaft does not allow to exceed (3+0.15d) cm
3/ min.It is that the maximum working pressure (MWP) of 1.5 times carries out experimental test that strength test can carry out force value, and after keeping test pressure 3min, its cylinder end caps and static seal position have not allowed seepage and malformation.
Load test, the load output torque of operating life test or push-pull effort promote back pressure cylinder by the air pressure that provides of the second gas-holder and the 3rd gas-holder, feedback force value size is carried out by force value sensor, by the second gas-holder boost electromagnetic valve and the 3rd gas-holder boost electromagnetic valve to the second gas-holder and the 3rd gas-holder supercharging, output force value in back pressure cylinder is increased, when force value sensor sensing reaches setting value to load force value, second gas-holder boost electromagnetic valve and the 3rd gas-holder boost electromagnetic valve stop supercharging, output force value now in back pressure cylinder had both been testing requirements value, when force value sensor sensing exceedes setting value to load force value, second gas-holder pressure release electromagnetic valve and the 3rd gas-holder pressure release electromagnetic valve carry out pressure release, make load force value stabilization to the force value of setting, carried out the commutation action of load output torque or push-pull effort by the first two-position five-way single control solenoid valve and the second two-position five-way single control solenoid valve in process of the test.
The beneficial effect of the proving installation of above-mentioned linear valve pneumatic actuator is: overall is Digitized Closed Loop control system, signal feedback is carried out by sensor, by the action of automation control system Controlling solenoid valve, the required value that pressure stability is set at testing crew carries out no-load test, leakage test, strength test, load test, operating life is tested, test out the valve used pneumatic actuator that long service life is stable, and measuring accuracy is high, stability is high, convenient test, detection speed is fast, whole proving installation structure simple-to-maintain cost is low, adopt two voltage stabilizing gas-holder to back pressure cylinder two ends air feed, obtain output torque or the push-and-pull force value of testing needs, thus the higher valve used pneumatic actuator of precision can be tested out.
Two of technical scheme of the present invention is: comprise the first gas-holder, the second gas-holder, the 3rd gas-holder, 3 position-5 way Double-control solenoid valve, the first two-position five-way single control solenoid valve, the second two-position five-way single control solenoid valve, automation control system, double acting orthoscopic valve pneumatic actuating unit sample, back pressure cylinder, source of the gas, water-separating gas filter, inlet pressure gauge, reduction valve, delivery gauge, oil sprayer, the first high-pressure solenoid valve, the first high pressure air exhaust valve, the first blowout-back pressure gauge, the second high-pressure solenoid valve, the second high pressure air exhaust valve and the second blowout-back pressure gauge
Described double acting orthoscopic valve pneumatic actuating unit sample comprises double acting orthoscopic valve pneumatic actuating unit sample first port and double acting orthoscopic valve pneumatic actuating unit sample second port,
Described source of the gas, water-separating gas filter, inlet pressure gauge, reduction valve, delivery gauge, oil sprayer, the first high-pressure solenoid valve, the first high pressure air exhaust valve, the first blowout-back pressure gauge, double acting orthoscopic valve pneumatic actuating unit sample first port are connected successively by tracheae
Second high-pressure solenoid valve, the second high pressure air exhaust valve are connected successively with the second blowout-back pressure gauge, double acting orthoscopic Pneumatic actuator sample second port, and the second high-pressure solenoid valve is connected with the tracheae between the first high-pressure solenoid valve and oil sprayer by tracheae,
Tracheae between first blowout-back pressure gauge and double acting orthoscopic valve pneumatic actuating unit sample first port is provided with the first high-pressure pressure sensor,
Described first high-pressure pressure sensor is connected with automation control system, the first high-pressure pressure sensor by the first high-pressure feedback signal transmission of detecting on automation control system,
Tracheae between second blowout-back pressure gauge and double acting orthoscopic valve pneumatic actuating unit sample second port is provided with the second high-pressure pressure sensor,
Described second high-pressure pressure sensor is connected with automation control system, the second high-pressure pressure sensor by the second high-pressure feedback signal transmission of detecting on automation control system,
Described first gas-holder is provided with the first gas-holder vent valve, the first gas-holder steam supply valve, the first reservoir pressure sensor, the first gas-holder boost electromagnetic valve, the first gas-holder pressure release electromagnetic valve, the first gas-holder safety valve and the first air tank pressure gauge,
Described second gas-holder is provided with the second gas-holder vent valve, the second gas-holder steam supply valve, the second reservoir pressure sensor, the second gas-holder boost electromagnetic valve, the second gas-holder pressure release electromagnetic valve, the second gas-holder safety valve and the second air tank pressure gauge,
Described 3rd gas-holder is provided with the 3rd gas-holder vent valve, the 3rd gas-holder steam supply valve, the 3rd reservoir pressure sensor, the 3rd gas-holder boost electromagnetic valve, the 3rd gas-holder pressure release electromagnetic valve, the 3rd gas-holder safety valve and the 3rd air tank pressure gauge,
Described first gas-holder boost electromagnetic valve, the second gas-holder boost electromagnetic valve and the 3rd gas-holder boost electromagnetic valve are all connected with the tracheae between oil sprayer and the first high-pressure solenoid valve by tracheae, pressurized air is penetrated in the first gas-holder, the second gas-holder and the 3rd gas-holder
Described first reservoir pressure sensor, the second reservoir pressure sensor are all connected with automation control system with the 3rd reservoir pressure sensor, respectively by the first reservoir pressure feedback signal, the second reservoir pressure feedback signal and the 3rd reservoir pressure feedback signal transmission that detect on automation control system
3 position-5 way Double-control solenoid valve comprises 3 position-5 way Double-control solenoid valve first port, 3 position-5 way Double-control solenoid valve second port and 3 position-5 way Double-control solenoid valve the 3rd port,
Described first gas-holder steam supply valve is connected with 3 position-5 way Double-control solenoid valve the 3rd port by tracheae,
Described 3 position-5 way Double-control solenoid valve first port is connected with the tracheae between the first high-pressure solenoid valve and the first high pressure air exhaust valve by tracheae, penetrated in double acting orthoscopic valve pneumatic actuating unit sample first port by the pressurized air in 3 position-5 way Double-control solenoid valve first port controlling first gas-holder
Described 3 position-5 way Double-control solenoid valve second port is connected with the tracheae between the second high-pressure solenoid valve and the second high pressure air exhaust valve by tracheae, penetrated in double acting orthoscopic valve pneumatic actuating unit sample second port by the pressurized air in 3 position-5 way Double-control solenoid valve second port controlling first gas-holder
Described back pressure cylinder comprises back pressure cylinder first port and back pressure cylinder second port,
Described second gas-holder steam supply valve is connected with the first two-position five-way single control solenoid valve by tracheae, described first two-position five-way single control solenoid valve is connected with back pressure cylinder first port by tracheae, penetrated in back pressure cylinder first port by the pressurized air in the first two-position five-way single control solenoid control second gas-holder
Described 3rd gas-holder steam supply valve is connected with the second two-position five-way single control solenoid valve by tracheae, described second two-position five-way single control solenoid valve is connected with back pressure cylinder second port by tracheae, penetrated in back pressure cylinder second port by the pressurized air in the second two-position five-way single control solenoid control the 3rd gas-holder
3 position-5 way Double-control solenoid valve, the first two-position five-way single control solenoid valve, the second two-position five-way single control solenoid valve, the first gas-holder boost electromagnetic valve, the first gas-holder pressure release electromagnetic valve, the second gas-holder boost electromagnetic valve, the second gas-holder pressure release electromagnetic valve, the 3rd gas-holder boost electromagnetic valve, the 3rd gas-holder pressure release electromagnetic valve are all connected with automation control system with the control line of high-pressure solenoid valve
3 position-5 way Double-control solenoid valve, the first two-position five-way single control solenoid valve, the second two-position five-way single control solenoid valve, the first gas-holder boost electromagnetic valve, the first gas-holder pressure release electromagnetic valve, the second gas-holder boost electromagnetic valve, the second gas-holder pressure release electromagnetic valve, the 3rd gas-holder boost electromagnetic valve, the 3rd gas-holder pressure release electromagnetic valve, the first high-pressure solenoid valve and the second high-voltage electromagnetic valve events is controlled by automation control system
Double acting orthoscopic valve pneumatic actuating unit sample is arranged on fixed support, and double acting orthoscopic valve pneumatic actuating unit sample comprises double acting orthoscopic valve pneumatic actuating unit sample piston rod, and back pressure cylinder comprises back pressure piston rod,
Shaft coupling, transmission rod, position indicator pointer, position transducer and force value sensor is provided with between described double acting orthoscopic valve pneumatic actuating unit sample piston rod and back pressure piston rod, described transmission rod one end is connected with double acting orthoscopic valve pneumatic actuating unit sample piston rod by shaft coupling, the transmission rod other end is connected with back pressure piston rod by force value sensor, described position indicator pointer is arranged on transmission rod, position transducer is arranged on fixed support, position indicator pointer matches with position transducer
Described position transducer is connected with automation control system, by position transducer, position feed back signal is transferred on automation control system, described force value sensor is connected with automation control system, by force value sensor by force value feedback signal transmission on automation control system.
The no-load test of double acting linear valve pneumatic actuator, leakage test, strength test project are on the principle of work basis of aforesaid single-acting linear valve pneumatic actuator, add the second high-pressure supply line, the high-pressure of double acting linear valve pneumatic actuator opposite side is provided, and carries out the commutation action of output torque or push-pull effort load by the first two-position five-way single control solenoid valve and the second two-position five-way single control solenoid valve.
The beneficial effect of the proving installation of above-mentioned linear valve pneumatic actuator is: on the basis of aforementioned single-acting linear valve pneumatic actuator proving installation, add the measuring ability to double acting linear valve pneumatic actuator, and entirety is Digitized Closed Loop control system, signal feedback is carried out by sensor, by the action of automation control system Controlling solenoid valve, the required value that pressure stability is set at testing crew carries out no-load test, leakage test, strength test, load test, operating life is tested, test out the valve used pneumatic actuator that long service life is stable, and measuring accuracy is high, stability is high, convenient test, detection speed is fast, whole proving installation structure simple-to-maintain cost is low, adopt two voltage stabilizing gas-holder to back pressure cylinder two ends air feed, obtain output torque or the push-and-pull force value of testing needs, thus the higher valve used pneumatic actuator of precision can be tested out
Illustrate below in conjunction with accompanying drawing and to be further described in detail with the proving installation of embodiment to valve used pneumatic actuator of the present invention.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of the proving installation embodiment one of linear valve pneumatic actuator of the present invention.
Embodiment
As shown in Figure 1, the proving installation embodiment one of linear valve pneumatic actuator of the present invention, for detecting single-acting linear valve pneumatic actuator sample,
It comprises the first gas-holder 26, second gas-holder 19, the 3rd gas-holder 11,3 position-5 way Double-control solenoid valve 33, first two-position five-way single control solenoid valve 56, second two-position five-way single control solenoid valve 58, automation control system 23, single-acting orthoscopic valve pneumatic actuating unit sample 37, back pressure cylinder 57, source of the gas 1, water-separating gas filter 2, inlet pressure gauge 3, reduction valve 4, delivery gauge 5, oil sprayer 6, high-pressure solenoid valve 32, high pressure air exhaust valve 34 and blowout-back pressure gauge 35
Described source of the gas 1, water-separating gas filter 2, inlet pressure gauge 3, reduction valve 4, delivery gauge 5, oil sprayer 6, high-pressure solenoid valve 32, high pressure air exhaust valve 34 are connected by tracheae successively with blowout-back pressure gauge 35,
Moisture in pressurized air can be separated by water-separating gas filter 2, inlet pressure gauge 3 observes the pressure during input of source of the gas 1 pressurized air, the pressure that reduction valve 4 regulates pressurized air to input, delivery gauge 5 observes the pressure after reduction valve 4 regulates, and oil sprayer 6 is filled with certain mist of oil in pressurized air, improves the life-span of back pressure cylinder 57, be conducive to the lubrication of back pressure piston rod 51, reduce resistance, make experiment more accurate
Described blowout-back pressure gauge 35 is connected with single-acting orthoscopic valve pneumatic actuating unit sample 37 by tracheae, that is to say from source of the gas 1 to water-separating gas filter 2, inlet pressure gauge 3, reduction valve 4, delivery gauge 5, oil sprayer 6, high-pressure solenoid valve 32, high pressure air exhaust valve 34, blowout-back pressure gauge 35, the control pipelines be linked in sequence by tracheae with last single-acting orthoscopic valve pneumatic actuating unit sample 37, no load test, this road pipeline is used when sealing experiment and strength test, tracheae between blowout-back pressure gauge 35 and single-acting orthoscopic valve pneumatic actuating unit sample 37 is provided with high-pressure pressure sensor 36, described high-pressure pressure sensor 36 is connected with automation control system 23, that is to say on the tracheae that high-pressure pressure sensor 36 is arranged between blowout-back pressure gauge 35 and single-acting orthoscopic valve pneumatic actuating unit sample 37, test finally penetrates into the compressed-air actuated force value of single-acting orthoscopic valve pneumatic actuating unit sample 37, high-pressure pressure sensor 36 by the high-pressure feedback signal transmission that detects to automation control system 23, that is to say and input a test pressure setting value to automation control system 23, high-pressure solenoid valve 32 is controlled to the through pressurized air of single-acting orthoscopic valve pneumatic actuating unit sample 37 supercharging by automation control system 23, high-pressure pressure sensor 36 is passed through by high-pressure feedback signal transmission on automation control system 23 in test process, high-pressure solenoid valve 32 is controlled to the supercharging of single-acting orthoscopic valve pneumatic actuating unit sample 37 again by automation control system 23, form closed-loop control, ensure that actual pressure Automatic-boosting is tested to the force value of setting.
Described first gas-holder 26 is provided with the first gas-holder vent valve 24, first gas-holder steam supply valve 31, first reservoir pressure sensor 27, first gas-holder boost electromagnetic valve 28, first gas-holder pressure release electromagnetic valve 29, first gas-holder safety valve 30 and the first air tank pressure gauge 25
Described second gas-holder 19 is provided with the second gas-holder vent valve 15, second gas-holder steam supply valve 16, second reservoir pressure sensor 17, second gas-holder boost electromagnetic valve 18, second gas-holder pressure release electromagnetic valve 20, second gas-holder safety valve 21 and the second air tank pressure gauge 22
Described 3rd gas-holder 11 is provided with the 3rd gas-holder vent valve 7, the 3rd gas-holder steam supply valve 8, the 3rd reservoir pressure sensor 9, the 3rd gas-holder boost electromagnetic valve 10, the 3rd gas-holder pressure release electromagnetic valve 12, the 3rd gas-holder safety valve 13 and the 3rd air tank pressure gauge 14
Described first gas-holder boost electromagnetic valve 28, second gas-holder boost electromagnetic valve 18 and the 3rd gas-holder boost electromagnetic valve 10 are all connected with the tracheae between oil sprayer 6 and high-pressure solenoid valve 32 by tracheae, pressurized air is made to penetrate in the first gas-holder 26, second gas-holder 19 and the 3rd gas-holder 11, that is to say that the pressurized air in the first gas-holder 26, second gas-holder 19 and the 3rd gas-holder 11 is accessed by the first respective gas-holder boost electromagnetic valve 28, second gas-holder boost electromagnetic valve 18 and the 3rd gas-holder boost electromagnetic valve 10
Described first reservoir pressure sensor 27, second reservoir pressure sensor 17 is all connected with automation control system 23 with the 3rd reservoir pressure sensor 9, the the first reservoir pressure feedback signal will detected respectively, second reservoir pressure feedback signal and the 3rd reservoir pressure feedback signal transmission are on automation control system 23, that is to say by the first reservoir pressure sensor 27, the pressure feedback signal detected is transferred to automation control system 23 by the second reservoir pressure sensor 17 and the 3rd reservoir pressure sensor 9, automation control system 23 clearly can know the first gas-holder 26, pressure in second gas-holder 19 and the 3rd gas-holder 11,
Described first gas-holder steam supply valve 31 is connected with 3 position-5 way Double-control solenoid valve 33 by tracheae, described 3 position-5 way Double-control solenoid valve 33 is connected with the tracheae between high-pressure solenoid valve 32 and high pressure air exhaust valve 34 by tracheae, penetrate in single-acting orthoscopic valve pneumatic actuating unit sample 37 by 3 position-5 way Double-control solenoid valve 33 pressurized air controlled in the first gas-holder 26, that is to say that the pressurized air in the first gas-holder 26 penetrates on 3 position-5 way Double-control solenoid valve 33 through the first gas-holder steam supply valve 31 by tracheae, controlling pressurized air by 3 position-5 way Double-control solenoid valve 33 again penetrates in single-acting orthoscopic valve pneumatic actuating unit sample 37 through high pressure air exhaust valve 34 and blowout-back pressure gauge 35,
Described back pressure cylinder 57 comprises back pressure cylinder first port 57-1 and back pressure cylinder second port 57-2,
Described second gas-holder steam supply valve 16 is connected with the first two-position five-way single control solenoid valve 56 by tracheae, described first two-position five-way single control solenoid valve 56 is connected with back pressure cylinder first port 57-1 by tracheae, penetrate in back pressure cylinder first port 57-1 by the first two-position five-way single control solenoid valve 56 pressurized air controlled in the second gas-holder 19, that is to say that the pressurized air in the second gas-holder 19 penetrates into the first two-position five-way single control solenoid valve 56 through the second gas-holder steam supply valve 16 by tracheae, controlling pressurized air by the first two-position five-way single control solenoid valve 56 again penetrates in back pressure cylinder first port 57-1,
Described 3rd gas-holder steam supply valve 8 is connected with the second two-position five-way single control solenoid valve 58 by tracheae, described second two-position five-way single control solenoid valve 58 is connected with back pressure cylinder second port 57-2 by tracheae, penetrate in back pressure cylinder second port 57-2 by the second two-position five-way single control solenoid valve 58 pressurized air controlled in the 3rd gas-holder 11, that is to say that the pressurized air in the 3rd gas-holder 11 penetrates into the second two-position five-way single control solenoid valve 58 through the 3rd gas-holder steam supply valve 8 by tracheae, control pressurized air by the second two-position five-way single control solenoid valve 58 again to penetrate in back pressure cylinder second port 57-2
3 position-5 way Double-control solenoid valve 33, first two-position five-way single control solenoid valve 56, second two-position five-way single control solenoid valve 58, first gas-holder boost electromagnetic valve 28, first gas-holder pressure release electromagnetic valve 29, second gas-holder boost electromagnetic valve 18, second gas-holder pressure release electromagnetic valve 20, the 3rd gas-holder boost electromagnetic valve 10, the 3rd gas-holder pressure release electromagnetic valve 12 are all connected with automation control system 23 with the control line of high-pressure solenoid valve 32
3 position-5 way Double-control solenoid valve 33 is controlled by automation control system 23, first two-position five-way single control solenoid valve 56, second two-position five-way single control solenoid valve 58, first gas-holder boost electromagnetic valve 28, first gas-holder pressure release electromagnetic valve 29, second gas-holder boost electromagnetic valve 18, second gas-holder pressure release electromagnetic valve 20, 3rd gas-holder boost electromagnetic valve 10, 3rd gas-holder pressure release electromagnetic valve 12 and high-pressure solenoid valve 32 action, that is to say that automation control system 23 controls 3 position-5 way Double-control solenoid valve 33, first two-position five-way single control solenoid valve 56, second two-position five-way single control solenoid valve 58, first gas-holder boost electromagnetic valve 28, first gas-holder pressure release electromagnetic valve 29, second gas-holder boost electromagnetic valve 18, second gas-holder pressure release electromagnetic valve 20, 3rd gas-holder boost electromagnetic valve 10, 3rd gas-holder pressure release electromagnetic valve 12 and high-pressure solenoid valve 32 open and close, namely switching on and off of above-mentioned member coils power supply is controlled,
Single-acting orthoscopic valve pneumatic actuating unit sample 37 is arranged on fixed support 40, and single-acting orthoscopic valve pneumatic actuating unit sample 37 comprises single-acting orthoscopic valve pneumatic actuating unit sample piston rod 39, and back pressure cylinder 57 comprises back pressure piston rod 51,
Shaft coupling 41 is provided with between described single-acting orthoscopic valve pneumatic actuating unit sample piston rod 39 and back pressure piston rod 51, transmission rod 44, position indicator pointer 42, position transducer 43 and force value sensor 47, described transmission rod 44 one end is connected with single-acting orthoscopic Pneumatic actuator sample piston rod 39 by shaft coupling 41, transmission rod 44 other end is connected with back pressure piston rod 51 by force value sensor 47, described position indicator pointer 42 is arranged on transmission rod 44, position transducer 43 is arranged on fixed support 40, position indicator pointer 42 matches with position transducer 43, that is to say that back pressure cylinder 57 piston rod 51 connects shaft coupling 41, shaft coupling 41 connects transmission rod 44, transmission rod 44 connects force value sensor 47, force value sensor 47 connects back pressure piston rod 51,
Described position transducer 43 is connected with automation control system 23, is transferred on automation control system 23 by position transducer 43 by position feed back signal,
Described force value sensor 47 is connected with automation control system 23, by force value sensor 47 by force value feedback signal transmission on automation control system 23,
The volume of back pressure cylinder 57 is no more than the second gas-holder 19, 3 percent of 3rd gas-holder 11 volume, to ensure that output torque or the fluctuation of push-and-pull force value are below 3 percent, described single-acting orthoscopic valve pneumatic actuating unit sample 37 is provided with protective cover 38, guarantee the safety of testing crew, described back pressure cylinder 57 is provided with distance adjusting means 59, regulate back pressure cylinder 57 relative to the distance of single-acting orthoscopic valve pneumatic actuating unit sample 37, automation control system 23 comprises PLC programmable logic controller (PLC), by PLC programmable logic controller (PLC) controls first gas-holder boost electromagnetic valve 28, first gas-holder pressure release electromagnetic valve 29, second gas-holder boost electromagnetic valve 18, second gas-holder pressure release electromagnetic valve 20, 3rd gas-holder boost electromagnetic valve 10, 3rd gas-holder pressure release electromagnetic valve 12, high-pressure solenoid valve 32, 3 position-5 way Double-control solenoid valve 33, first two-position five-way single control solenoid valve 56 and the second two-position five-way single control solenoid valve 58 action, make test process more stable.
The principle of work of embodiment one is as follows:
Carry out no-load test, leakage test and strength test time only use high-pressure air source as the action of powered single-acting orthoscopic valve pneumatic actuating unit sample 37, now the second gas-holder 19 and the 3rd gas-holder 11 and back pressure cylinder 57 are all failure to actuate.
When carrying out load test, operating life test, single-acting orthoscopic valve pneumatic actuating unit sample 37 is divided into advancing and declines and reset rising two course movement processes:
(1), single-acting orthoscopic valve pneumatic actuating unit sample 37 decline stage of advancing provides pressure to promote the action of single-acting orthoscopic valve pneumatic actuating unit sample 37 by the first gas-holder 26, now the second gas-holder 19 provides pressure to back pressure cylinder first port 57-1 as the load output torque of back pressure cylinder 57 or push-pull effort, feedback force value size is carried out by force value sensor 47, by the second gas-holder boost electromagnetic valve 18 to the second gas-holder 19 supercharging, the output force value of 57 li, back pressure cylinder is increased, when force value sensor 47 senses that load force value reaches setting value, second gas-holder boost electromagnetic valve 18 stops supercharging, output force value now in back pressure cylinder had both been testing requirements value, when force value sensor 47 senses that load force value exceedes setting value, second gas-holder pressure release electromagnetic valve 20 carries out pressure release, make load force value stabilization to the force value of setting,
(2), single-acting orthoscopic valve pneumatic actuating unit sample 37 ascent stage first gas-holder 26 that resets is failure to actuate, first two-position five-way single control solenoid valve 56 and the second two-position five-way single control solenoid valve 58 carry out the commutation action of load output torque or push-pull effort, now the 3rd gas-holder 11 provides pressure to back pressure cylinder second port 57-2 as the load output torque of back pressure cylinder 57 or push-pull effort, feedback force value size is carried out by force value sensor 47, by the 3rd gas-holder boost electromagnetic valve 10 to the 3rd gas-holder 11 supercharging, the output force value of 57 li, back pressure cylinder is increased, when force value sensor 47 senses that load force value reaches setting value, 3rd gas-holder boost electromagnetic valve 10 stops supercharging, output force value now in back pressure cylinder had both been testing requirements value, when force value sensor 47 senses that load force value exceedes setting value, 3rd gas-holder pressure release electromagnetic valve 20 carries out pressure release, make load force value stabilization to the force value of setting.
The proving installation embodiment two of linear valve pneumatic actuator of the present invention, for detecting double acting linear valve pneumatic actuator sample, can with reference to figure 1 and embodiment one,
Be with embodiment one structure difference: also comprise the second high-pressure supply line, the high-pressure of double acting linear valve pneumatic actuator sample opposite side is provided, this high-pressure supply line comprises the second high-pressure solenoid valve (not indicating in figure), second high pressure air exhaust valve (not indicating in figure) and the second blowout-back pressure gauge (not indicating in figure), source of the gas 1, water-separating gas filter 2, inlet pressure gauge 3, reduction valve 4, delivery gauge 5, oil sprayer 6, first high-pressure solenoid valve, first high pressure air exhaust valve, first blowout-back pressure gauge, double acting orthoscopic valve pneumatic actuating unit sample first port is connected successively by tracheae, second high-pressure solenoid valve, second high pressure air exhaust valve and the second blowout-back pressure gauge, double acting orthoscopic Pneumatic actuator sample second port connects successively, second high-pressure solenoid valve is connected with the tracheae between the first high-pressure solenoid valve and oil sprayer by tracheae, tracheae between first blowout-back pressure gauge and double acting orthoscopic valve pneumatic actuating unit sample first port is provided with the first high-pressure pressure sensor, described first high-pressure pressure sensor is connected with automation control system 23, first high-pressure pressure sensor by the first high-pressure feedback signal transmission of detecting on automation control system 23, tracheae between second blowout-back pressure gauge and double acting orthoscopic valve pneumatic actuating unit sample second port is provided with the second high-pressure pressure sensor, described second high-pressure pressure sensor is connected with automation control system 23, second high-pressure pressure sensor by the second high-pressure feedback signal transmission of detecting on automation control system 23.
All the other structures of embodiment two are identical with embodiment one.
The principle of work of embodiment two and the difference of embodiment one are: carry out no-load test, leakage test, first gas-holder 26 during strength test, second gas-holder 19 and the 3rd gas-holder 11 are all failure to actuate, tested to double acting orthoscopic valve pneumatic actuating unit sample first end confession gas through the first high-pressure feed road by source of the gas 1, tested to double acting orthoscopic valve pneumatic actuating unit sample second port air feed through the second high-pressure feed road by source of the gas 1, control by the first high-pressure solenoid valve the pressurized air that pressurized air in the first high-pressure feed road and the second high-pressure solenoid valve control in the second high-pressure feed road and commutation action is carried out to double acting orthoscopic valve pneumatic actuating unit sample.
When carrying out load test, operating life test, double acting orthoscopic valve pneumatic actuating unit sample is divided into advancing and declines and reset rising two course movement processes, decline stage principle of work of advancing is identical with embodiment one, reset ascent stage is then by being provided pressure to double acting orthoscopic valve pneumatic actuating unit sample second port by the first gas-holder 26, all the other principle of work are identical with embodiment one.
Claims (10)
1. the proving installation of linear valve pneumatic actuator, it is characterized in that: comprise the first gas-holder (26), second gas-holder (19), 3rd gas-holder (11), 3 position-5 way Double-control solenoid valve (33), first two-position five-way single control solenoid valve (56), second two-position five-way single control solenoid valve (58), automation control system (23), single-acting orthoscopic valve pneumatic actuating unit sample (37), back pressure cylinder (57), source of the gas (1), water-separating gas filter (2), inlet pressure gauge (3), reduction valve (4), delivery gauge (5), oil sprayer (6), high-pressure solenoid valve (32), high pressure air exhaust valve (34) and blowout-back pressure gauge (35),
Described source of the gas (1), water-separating gas filter (2), inlet pressure gauge (3), reduction valve (4), delivery gauge (5), oil sprayer (6), high-pressure solenoid valve (32), high pressure air exhaust valve (34) are connected by tracheae successively with blowout-back pressure gauge (35)
Described blowout-back pressure gauge (35) is connected with single-acting orthoscopic valve pneumatic actuating unit sample (37) by tracheae, tracheae between blowout-back pressure gauge (35) and single-acting orthoscopic valve pneumatic actuating unit sample (37) is provided with high-pressure pressure sensor (36), described high-pressure pressure sensor (36) is connected with automation control system (23), high-pressure pressure sensor (36) by the high-pressure feedback signal transmission that detects to automation control system (23)
Described first gas-holder (26) is provided with the first gas-holder vent valve (24), the first gas-holder steam supply valve (31), the first reservoir pressure sensor (27), the first gas-holder boost electromagnetic valve (28), the first gas-holder pressure release electromagnetic valve (29), the first gas-holder safety valve (30) and the first air tank pressure gauge (25)
Described second gas-holder (19) is provided with the second gas-holder vent valve (15), the second gas-holder steam supply valve (16), the second reservoir pressure sensor (17), the second gas-holder boost electromagnetic valve (18), the second gas-holder pressure release electromagnetic valve (20), the second gas-holder safety valve (21) and the second air tank pressure gauge (22)
Described 3rd gas-holder (11) is provided with the 3rd gas-holder vent valve (7), the 3rd gas-holder steam supply valve (8), the 3rd reservoir pressure sensor (9), the 3rd gas-holder boost electromagnetic valve (10), the 3rd gas-holder pressure release electromagnetic valve (12), the 3rd gas-holder safety valve (13) and the 3rd air tank pressure gauge (14)
Described first gas-holder boost electromagnetic valve (28), the second gas-holder boost electromagnetic valve (18) and the 3rd gas-holder boost electromagnetic valve (10) are all connected with the tracheae between oil sprayer (6) and high-pressure solenoid valve (32) by tracheae, pressurized air is penetrated in the first gas-holder (26), the second gas-holder (19) and the 3rd gas-holder (11)
Described first reservoir pressure sensor (27), the second reservoir pressure sensor (17) are all connected with automation control system (23) with the 3rd reservoir pressure sensor (9), respectively by the first reservoir pressure feedback signal, the second reservoir pressure feedback signal and the 3rd reservoir pressure feedback signal transmission that detect on automation control system (23)
Described first gas-holder steam supply valve (31) is connected with 3 position-5 way Double-control solenoid valve (33) by tracheae, described 3 position-5 way Double-control solenoid valve (33) is connected with the tracheae between high-pressure solenoid valve (32) and high pressure air exhaust valve (34) by tracheae, penetrated in single-acting orthoscopic valve pneumatic actuating unit sample (37) by 3 position-5 way Double-control solenoid valve (33) pressurized air controlled in the first gas-holder (26)
Described back pressure cylinder (57) comprises back pressure cylinder first port (57-1) and back pressure cylinder second port (57-2),
Described second gas-holder steam supply valve (16) is connected with the first two-position five-way single control solenoid valve (56) by tracheae, described first two-position five-way single control solenoid valve (56) is connected with back pressure cylinder first port (57-1) by tracheae, penetrated in back pressure cylinder first port (57-1) by the first two-position five-way single control solenoid valve (56) pressurized air controlled in the second gas-holder (19)
Described 3rd gas-holder steam supply valve (8) is connected with the second two-position five-way single control solenoid valve (58) by tracheae, described second two-position five-way single control solenoid valve (58) is connected with back pressure cylinder second port (57-2) by tracheae, the pressurized air controlled in the 3rd gas-holder (11) by the second two-position five-way single control solenoid valve (58) penetrates in back pressure cylinder second port (57-2)
3 position-5 way Double-control solenoid valve (33), the first two-position five-way single control solenoid valve (56), the second two-position five-way single control solenoid valve (58), the first gas-holder boost electromagnetic valve (28), the first gas-holder pressure release electromagnetic valve (29), the second gas-holder boost electromagnetic valve (18), the second gas-holder pressure release electromagnetic valve (20), the 3rd gas-holder boost electromagnetic valve (10), the 3rd gas-holder pressure release electromagnetic valve (12) are all connected with automation control system (23) with the control line of high-pressure solenoid valve (32)
3 position-5 way Double-control solenoid valve (33), the first two-position five-way single control solenoid valve (56), the second two-position five-way single control solenoid valve (58), the first gas-holder boost electromagnetic valve (28), the first gas-holder pressure release electromagnetic valve (29), the second gas-holder boost electromagnetic valve (18), the second gas-holder pressure release electromagnetic valve (20), the 3rd gas-holder boost electromagnetic valve (10), the 3rd gas-holder pressure release electromagnetic valve (12) and high-pressure solenoid valve (32) action is controlled by automation control system (23)
Single-acting orthoscopic valve pneumatic actuating unit sample (37) is arranged on fixed support (40), single-acting orthoscopic valve pneumatic actuating unit sample (37) comprises single-acting orthoscopic valve pneumatic actuating unit sample piston rod (39), back pressure cylinder (57) comprises back pressure piston rod (51)
Shaft coupling (41) is provided with between described single-acting orthoscopic valve pneumatic actuating unit sample piston rod (39) and back pressure piston rod (51), transmission rod (44), position indicator pointer (42), position transducer (43) and force value sensor (47), described transmission rod (44) one end is connected with single-acting orthoscopic valve pneumatic actuating unit sample piston rod (39) by shaft coupling (41), transmission rod (44) other end is connected with back pressure piston rod (51) by force value sensor (47), described position indicator pointer (42) is arranged on transmission rod (44), position transducer (43) is arranged on fixed support (40), position indicator pointer (42) matches with position transducer (43),
Described position transducer (43) is connected with automation control system (23), is transferred on automation control system (23) by position transducer (43) by position feed back signal,
Described force value sensor (47) is connected with automation control system (23), by force value sensor (47) by force value feedback signal transmission on automation control system (23).
2. the proving installation of linear valve pneumatic actuator according to claim 1, is characterized in that: the volume of described back pressure cylinder (57) be no more than the second gas-holder (19), the 3rd gas-holder (11) volume 3 percent.
3. the proving installation of linear valve pneumatic actuator according to claim 1 and 2, is characterized in that: described single-acting orthoscopic valve pneumatic actuating unit sample (37) is provided with protective cover (38).
4. the proving installation of linear valve pneumatic actuator according to claim 1 and 2, it is characterized in that: described back pressure cylinder (57) is provided with distance adjusting means (59), regulate back pressure cylinder (57) relative to the distance of single-acting orthoscopic valve pneumatic actuating unit sample (37).
5. the proving installation of linear valve pneumatic actuator according to claim 3, it is characterized in that: described back pressure cylinder (57) is provided with distance adjusting means (59), regulate back pressure cylinder (57) relative to the distance of single-acting orthoscopic valve pneumatic actuating unit sample (37).
6. the proving installation of linear valve pneumatic actuator, it is characterized in that: comprise the first gas-holder (26), second gas-holder (19), 3rd gas-holder (11), 3 position-5 way Double-control solenoid valve (33), first two-position five-way single control solenoid valve (56), second two-position five-way single control solenoid valve (58), automation control system (23), double acting orthoscopic valve pneumatic actuating unit sample, back pressure cylinder (57), source of the gas (1), water-separating gas filter (2), inlet pressure gauge (3), reduction valve (4), delivery gauge (5), oil sprayer (6), first high-pressure solenoid valve, first high pressure air exhaust valve, first blowout-back pressure gauge, second high-pressure solenoid valve, second high pressure air exhaust valve and the second blowout-back pressure gauge,
Described double acting orthoscopic valve pneumatic actuating unit sample comprises double acting orthoscopic valve pneumatic actuating unit sample first port and double acting orthoscopic valve pneumatic actuating unit sample second port,
Described source of the gas (1), water-separating gas filter (2), inlet pressure gauge (3), reduction valve (4), delivery gauge (5), oil sprayer (6), the first high-pressure solenoid valve, the first high pressure air exhaust valve, the first blowout-back pressure gauge, double acting orthoscopic valve pneumatic actuating unit sample first port are connected successively by tracheae
Second high-pressure solenoid valve, the second high pressure air exhaust valve are connected successively with the second blowout-back pressure gauge, double acting orthoscopic Pneumatic actuator sample second port, and the second high-pressure solenoid valve is connected with the tracheae between the first high-pressure solenoid valve and oil sprayer by tracheae,
Tracheae between first blowout-back pressure gauge and double acting orthoscopic valve pneumatic actuating unit sample first port is provided with the first high-pressure pressure sensor,
Described first high-pressure pressure sensor is connected with automation control system (23), the first high-pressure pressure sensor by the first high-pressure feedback signal transmission of detecting on automation control system (23),
Tracheae between second blowout-back pressure gauge and double acting orthoscopic valve pneumatic actuating unit sample second port is provided with the second high-pressure pressure sensor,
Described second high-pressure pressure sensor is connected with automation control system (23), the second high-pressure pressure sensor by the second high-pressure feedback signal transmission of detecting on automation control system (23),
Described first gas-holder (26) is provided with the first gas-holder vent valve (24), the first gas-holder steam supply valve (31), the first reservoir pressure sensor (27), the first gas-holder boost electromagnetic valve (28), the first gas-holder pressure release electromagnetic valve (29), the first gas-holder safety valve (30) and the first air tank pressure gauge (25)
Described second gas-holder (19) is provided with the second gas-holder vent valve (15), the second gas-holder steam supply valve (16), the second reservoir pressure sensor (17), the second gas-holder boost electromagnetic valve (18), the second gas-holder pressure release electromagnetic valve (20), the second gas-holder safety valve (21) and the second air tank pressure gauge (22)
Described 3rd gas-holder (11) is provided with the 3rd gas-holder vent valve (7), the 3rd gas-holder steam supply valve (8), the 3rd reservoir pressure sensor (9), the 3rd gas-holder boost electromagnetic valve (10), the 3rd gas-holder pressure release electromagnetic valve (12), the 3rd gas-holder safety valve (13) and the 3rd air tank pressure gauge (14)
Described first gas-holder boost electromagnetic valve (28), the second gas-holder boost electromagnetic valve (18) and the 3rd gas-holder boost electromagnetic valve (10) are all connected with the tracheae between oil sprayer (6) and the first high-pressure solenoid valve by tracheae, pressurized air is penetrated in the first gas-holder (26), the second gas-holder (19) and the 3rd gas-holder (11)
Described first reservoir pressure sensor (27), the second reservoir pressure sensor (17) are all connected with automation control system (23) with the 3rd reservoir pressure sensor (9), respectively by the first reservoir pressure feedback signal, the second reservoir pressure feedback signal and the 3rd reservoir pressure feedback signal transmission that detect on automation control system (23)
3 position-5 way Double-control solenoid valve (33) comprises 3 position-5 way Double-control solenoid valve first port, 3 position-5 way Double-control solenoid valve second port and 3 position-5 way Double-control solenoid valve the 3rd port,
Described first gas-holder steam supply valve (31) is connected with 3 position-5 way Double-control solenoid valve the 3rd port by tracheae,
Described 3 position-5 way Double-control solenoid valve first port is connected with the tracheae between the first high-pressure solenoid valve and the first high pressure air exhaust valve by tracheae, penetrated in double acting orthoscopic valve pneumatic actuating unit sample first port by the pressurized air in 3 position-5 way Double-control solenoid valve first port controlling first gas-holder (26)
Described 3 position-5 way Double-control solenoid valve second port is connected with the tracheae between the second high-pressure solenoid valve and the second high pressure air exhaust valve by tracheae, penetrated in double acting orthoscopic valve pneumatic actuating unit sample second port by the pressurized air in 3 position-5 way Double-control solenoid valve second port controlling first gas-holder (26)
Described back pressure cylinder (57) comprises back pressure cylinder first port (57-1) and back pressure cylinder second port (57-2),
Described second gas-holder steam supply valve (16) is connected with the first two-position five-way single control solenoid valve (56) by tracheae, described first two-position five-way single control solenoid valve (56) is connected with back pressure cylinder first port (57-1) by tracheae, penetrated in back pressure cylinder first port (57-1) by the first two-position five-way single control solenoid valve (56) pressurized air controlled in the second gas-holder (19)
Described 3rd gas-holder steam supply valve (8) is connected with the second two-position five-way single control solenoid valve (58) by tracheae, described second two-position five-way single control solenoid valve (58) is connected with back pressure cylinder second port (57-2) by tracheae, the pressurized air controlled in the 3rd gas-holder (11) by the second two-position five-way single control solenoid valve (58) penetrates in back pressure cylinder second port (57-2)
3 position-5 way Double-control solenoid valve (33), the first two-position five-way single control solenoid valve (56), the second two-position five-way single control solenoid valve (58), the first gas-holder boost electromagnetic valve (28), the first gas-holder pressure release electromagnetic valve (29), the second gas-holder boost electromagnetic valve (18), the second gas-holder pressure release electromagnetic valve (20), the 3rd gas-holder boost electromagnetic valve (10), the 3rd gas-holder pressure release electromagnetic valve (12) are all connected with automation control system (23) with the control line of high-pressure solenoid valve (32)
3 position-5 way Double-control solenoid valve (33), the first two-position five-way single control solenoid valve (56), the second two-position five-way single control solenoid valve (58), the first gas-holder boost electromagnetic valve (28), the first gas-holder pressure release electromagnetic valve (29), the second gas-holder boost electromagnetic valve (18), the second gas-holder pressure release electromagnetic valve (20), the 3rd gas-holder boost electromagnetic valve (10), the 3rd gas-holder pressure release electromagnetic valve (12), the first high-pressure solenoid valve and the second high-voltage electromagnetic valve events is controlled by automation control system (23)
Double acting orthoscopic valve pneumatic actuating unit sample is arranged on fixed support (40), double acting orthoscopic valve pneumatic actuating unit sample comprises double acting orthoscopic valve pneumatic actuating unit sample piston rod (39), back pressure cylinder (57) comprises back pressure piston rod (51)
Shaft coupling (41) is provided with between described double acting orthoscopic valve pneumatic actuating unit sample piston rod (39) and back pressure piston rod (51), transmission rod (44), position indicator pointer (42), position transducer (43) and force value sensor (47), described transmission rod (44) one end is connected with double acting orthoscopic valve pneumatic actuating unit sample piston rod by shaft coupling (41), transmission rod (44) other end is connected with back pressure piston rod (51) by force value sensor (47), described position indicator pointer (42) is arranged on transmission rod (44), position transducer (43) is arranged on fixed support (40), position indicator pointer (42) matches with position transducer (43),
Described position transducer (43) is connected with automation control system (23), by position transducer (43), position feed back signal is transferred on automation control system (23), described force value sensor (47) is connected with automation control system (23), by force value sensor (47) by force value feedback signal transmission on automation control system (23).
7. the proving installation of linear valve pneumatic actuator according to claim 6, is characterized in that: the volume of described back pressure cylinder (57) be no more than the second gas-holder (19), the 3rd gas-holder (11) volume 3 percent.
8. the proving installation of the linear valve pneumatic actuator according to claim 6 or 7, is characterized in that: described double acting orthoscopic valve pneumatic actuating unit sample is provided with protective cover (38).
9. the proving installation of the linear valve pneumatic actuator according to claim 6 or 7, it is characterized in that: described back pressure cylinder (57) is provided with distance adjusting means (59), regulate back pressure cylinder (57) relative to the distance of double acting orthoscopic valve pneumatic actuating unit sample.
10. the proving installation of linear valve pneumatic actuator according to claim 8, it is characterized in that: described back pressure cylinder (57) is provided with distance adjusting means (59), regulate back pressure cylinder (57) relative to the distance of double acting orthoscopic valve pneumatic actuating unit sample.
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| CN104316318B (en) * | 2014-10-10 | 2019-11-12 | 无锡纬途流体科技有限公司 | The test device and test method of rotary valve used pneumatic actuator |
| CN106081857A (en) * | 2016-07-29 | 2016-11-09 | 江苏宇天港玻新材料有限公司 | A kind of vacuum cup self-sustaining system |
| CN108982028A (en) * | 2018-05-30 | 2018-12-11 | 施苇 | A kind of bouncing shoes elastic device repeated compression test machine |
| CN110579344A (en) * | 2019-07-30 | 2019-12-17 | 浙江省泵阀产品质量检验中心（永嘉县质量技术监督检测研究院） | Double-acting linear type valve pneumatic actuator comprehensive testing device |
| CN110579343B (en) * | 2019-07-30 | 2021-04-23 | 浙江省泵阀产品质量检验中心（永嘉县质量技术监督检测研究院） | Linear valve electric actuator comprehensive testing device |
| CN110530619B (en) * | 2019-08-06 | 2021-07-20 | 淮安信息职业技术学院 | Drill bit test platform and test method |
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