CN102607752A - Device for continuously testing opening and closing torques of valve pneumatic device and test method - Google Patents
Device for continuously testing opening and closing torques of valve pneumatic device and test method Download PDFInfo
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- CN102607752A CN102607752A CN2011100234142A CN201110023414A CN102607752A CN 102607752 A CN102607752 A CN 102607752A CN 2011100234142 A CN2011100234142 A CN 2011100234142A CN 201110023414 A CN201110023414 A CN 201110023414A CN 102607752 A CN102607752 A CN 102607752A
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Abstract
The invention relates to a device for continuously testing opening and closing torques of a valve pneumatic device and a test method, relating to torque test equipment. A valve pneumatic device to be tested is arranged below an output shaft, and a shaft connector is arranged at the upper end of a vertical output shaft in the middle of a loading component; an output shaft connector of the valve pneumatic device to be tested is connected with the output shaft connector of the loading component; a torque sensor is arranged at the flange joint between the valve pneumatic device to be tested and the loading component; an air pressure sensor is mounted on the valve pneumatic device to be tested; the air pressure sensor is connected with a control box through a connecting wire of the air pressure sensor; the valve pneumatic device to be tested is connected with the control box through a control wire; the torque sensor is connected with the control box through a connecting wire of the torque sensor; a pulse encoder is mounted on the loading component; the pulse encoder is connected with the control box through a connecting wire of the pulse encoder; the control box is connected with an industrial control computer; and the industrial control computer is connected with a display and a printer. The problems in the prior art of low working efficiency, long test working time and inaccurate test result can be solved.
Description
Technical field
The present invention relates to valve pneumatic means torsion-testing equipment.
Background technology
At present the proving installation of moment of torsion can not be tested the moment of torsion under all air pressure conditions, can not follow-on test, also there is inefficiency, long, the inaccurate shortcoming of test result of test job time.
Summary of the invention
The purpose of this invention is to provide a kind of valve pneumatic means open and close torque continuous test device and test method; The invention solves the inefficiency that existing torsion-testing apparatus exists, can not follow-on test and the test job time is long, the inaccurate problem of test result.
Valve pneumatic means open and close torque continuous test device of the present invention and test method are made up of loading component 1, pulse encoder 2, torque sensor 3, tested pneumatic means 4, baroceptor 5, control box 10, industrial computer 12, tested valve pneumatic means output shaft connector 14 and loading component output shaft connector 15; Tested valve pneumatic means 4 is arranged at the top of loading component 1; There is loading component output shaft connector 15 upper end of the vertical output shaft in the middle of the loading component 1; There is tested valve pneumatic means output shaft connector 14 vertical output shaft lower end in the middle of the tested valve pneumatic means 4; Tested valve pneumatic means output shaft connector 14 connects loading component output shaft connector 15, and torque sensor 3 is arranged at the flange connections between tested valve pneumatic means 4 and the loading component 1; On tested valve pneumatic means 4, baroceptor 5 is installed; Baroceptor 5 connects control box 10 through baroceptor wiring 6; Tested valve pneumatic means 4 connects control box 10 through control line 7, and torque sensor 3 connects control box 10 through torque sensor wiring 8; Pulse encoder 2 is installed on loading component 1, and pulse encoder 2 connects control box 10 through pulse encoder wiring 9; Control box 10 connects industrial computer 12, and industrial computer 12 connects printer 11 and display 13 respectively
Valve pneumatic means open and close torque continuous test device and test method; Comprise that also tested valve pneumatic means 4 is two cylinder arrangements; Its two pistons interconnect through valve pneumatic means connecting link 16 to be measured; Two cylinder outer ends of tested valve pneumatic means 4 connect three position four-way electromagnetic valve 19 through pipeline, and three position four-way electromagnetic valve 19 connects the relay 17 of control box 10, and relay 17 connects the I/O plate of industrial computer 12.
Valve pneumatic means open and close torque continuous test device and test method; Tested valve pneumatic means 4; Both can two cylinder arrangement valve pneumatic means as claimed in claim 1; Also can be that other output shafts are made the partly valve pneumatic means of rotating other structures, pull formula etc. like single casing, pendulum.
Valve pneumatic means open and close torque continuous test device and test method, loading component 1 are cover twin-tub double-piston hydraulic devices, and its two pistons connect mutually through connecting rod 29.The left side outlet of two cylinders is communicated with through threeway 23 and 24 with pipeline, and its right side outlet is communicated with through threeway 25 and 26 with pipeline; Threeway 24 is connected with threeway 25 through throttling valve 20 with pipe simultaneously; Threeway 23 simultaneously with pipeline with lead to oil sump tank 27 after stop valve 21 is connected; Threeway 26 simultaneously with pipeline with connect evacuated tube 28 again after stop valve 22 is connected.
Valve pneumatic means open and close torque continuous test device of the present invention and test method its objective is the test pneumatic means under various air pressure conditions, during various keying speed, and the max. output torque in opening-closing process during each rotational angle.
Valve pneumatic means open and close torque continuous test device of the present invention and test method; Can use the operating process of industrial PC control testing table; And can carry out continuous sampling automatically to parameters such as output torque, air pressure, working times; Store sample information shows on screen or prints with curve mode.
The purposes of valve pneumatic means open and close torque continuous test device of the present invention and test method is: test valve pneumatic means under various air pressure conditions, during various keying speed, required max. output torque during various rotational angle in opening-closing process.It is high to have test job efficient, short, accurate test result advantage of test job time.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is valve pneumatic means open and close torque continuous test device control system figure of the present invention.
Fig. 3 is a valve pneumatic means open and close torque continuous test device hydraulic loading system synoptic diagram.
Symbol description among the figure: loading component 1; Pulse encoder 2; Torque sensor 3; Tested pneumatic means 4; Baroceptor 5; Baroceptor wiring 6; Control line 7; Torque sensor wiring 8; Pulse encoder wiring 9; Control box 10; Printer 11; Industrial computer 12; Display screen 13; Tested pneumatic means output shaft connector 14; Loading component output shaft connector 15; Pneumatic means connecting link 16 to be measured; Relay 17; I/O plate 18; Three position four-way electromagnetic valve 19; Throttling valve 20; Stop valve 21; 22; Threeway 23; 24; 25; 26; Oil sump tank 27; Evacuated tube 28; Connecting rod 29.
Embodiment
Below in conjunction with accompanying drawing and with illustrated embodiments the present invention is done detailed explanation.
Consult Fig. 1-Fig. 2; Valve pneumatic means open and close torque continuous test device and test method are made up of loading component 1, pulse encoder 2, torque sensor 3, tested valve pneumatic means 4, baroceptor 5, control box 10, industrial computer 12, tested valve pneumatic means output shaft connector 14 and loading component output shaft connector 15; Tested valve pneumatic means 4 is arranged at the top of loading component 1; There is loading component output shaft connector 15 upper end of the vertical output shaft in the middle of the loading component 1; There is tested valve pneumatic means output shaft connector 14 vertical output shaft lower end in the middle of the tested valve pneumatic means 4; Tested valve pneumatic means output shaft connector 14 connects loading component output shaft connector 15, and torque sensor 3 is arranged at the flange connections between tested valve pneumatic means 4 and the loading component 1; On tested valve pneumatic means 4, baroceptor 5 is installed; Baroceptor 5 connects control box 10 through baroceptor wiring 6; Tested valve pneumatic means 4 connects control box 10 through control line 7, and torque sensor 3 connects control box 10 through torque sensor wiring 8; Pulse encoder 2 is installed on loading component 1, and pulse encoder 2 connects control box 10 through pulse encoder wiring 9; Control box 10 connects industrial computer 12, and industrial computer 12 connects printer 11 and display 13 respectively.。
Valve pneumatic means open and close torque continuous test device and test method; Comprise that also tested valve pneumatic means 4 is two cylinder arrangements; Its two pistons interconnect through valve pneumatic means connecting link 16 to be measured; Two piston outer ends of tested valve pneumatic means 4 connect three position four-way electromagnetic valve 19 through pipeline, and three position four-way electromagnetic valve 19 connects the relay 17 of control box 10, and relay 17 connects the I/O plate 18 of industrial computer 12.
Valve pneumatic means open and close torque continuous test device and test method; Tested valve pneumatic means 4; Both can two cylinder arrangement valve pneumatic means as claimed in claim 1; Also can be that other output shafts are made the partly valve pneumatic means of rotating other structures, pull formula etc. like single casing, pendulum.
Valve pneumatic means open and close torque continuous test device and test method, loading component 1 are cover twin-tub double-piston hydraulic devices, and its two pistons connect mutually through connecting rod 29.The left side outlet of two cylinders is communicated with through threeway 23 and 24 with pipeline, and its right side outlet is communicated with through threeway 25 and 26 with pipeline; Threeway 24 is connected with threeway 25 through throttling valve 20 with pipeline simultaneously; Threeway 23 simultaneously with pipeline with lead to oil sump tank 27 after stop valve 21 is connected; Threeway 26 simultaneously with pipeline with connect evacuated tube 28 again after stop valve 22 is connected.
One, system of the present invention forms:
1) loading component: the principle that adopts twin-tub dual Piston hydraulic means to add throttling valve loads.
2) measuring system: comprise that pulse encoder is used to measure the bleed pressure that output torque, baroceptor that the corner of tested valve pneumatic means, torque sensor be used to measure tested valve pneumatic means are used to measure tested valve pneumatic means.
3) control system: the I/O interface pilot relay that adopts industrial computer; Further control the import and export air operated reversing valve of tested valve pneumatic means again; Thereby control the action of tested pneumatic means; Also can directly control the import and export air operated reversing valve of tested valve pneumatic means, thereby control the action of tested valve pneumatic means, also can directly control the import and export air operated reversing valve of tested valve pneumatic means through the button on the control box through the button on the control box; The duty of system can reflect on the control box panel, also can on the display screen of industrial computer, reflect.
4) data acquisition system (DAS): with each sensor output signal high-speed sampling of measuring system, the data of adopting show on display screen, further carry out obtaining our required conclusion after the data processing.
5) data output device adopts our needed data and conclusion of printer output.
Two, the mode selected of loading component form of the present invention has following several kinds:
1) grinding disk.
2) magnetic powder brake.
3) valve adds throttling valve with twin-tub dual Piston fluid pressure drive device.
4) increase gear adds oil motor supernumerary segment stream valve.
The design adopts twin-tub dual Piston hydraulic loading device as loading component, and Fig. 3 consults in its system.
Select for use valve twin-tub dual Piston fluid pressure drive device to add throttling valve and following advantage arranged as charger:
(1) its structure can be consistent with test products, and promptly test products is the shift fork structure, just selects the valve hydraulic loading device of shift fork structure for use; As test products be gear & rack structure then the valve hydraulic loading device also select gear & rack structure for use, both torque curves are similar, help in whole travel range hydraulic pressure steadily.The measuring accuracy that the data utilized are arranged.
(2) since when operation speed consistent with test products be slow running, so inertial force is little, can ignore.
(3) because the incompressibility of liquid just needs the keying speed of control test products.
(4) biggest advantage is that the output peak torque with test products is consistent automatically for the loading moment of torsion.
Increase gear adds oil motor supernumerary segment stream valve has above 3. 4. 2 advantages as charger, but following shortcoming is also arranged:
1. when test products was gear & rack structure, both torque curves still can be similar, but if test products for when the shift fork structure, both torque curves have than big-difference, are unfavorable for the measuring accuracy of data.
2. another shortcoming is that the oil motor rotating speed is generally higher, so inertia is bigger, the rotating speed of running is not too steady, is unfavorable for the measuring accuracy of data.
Adopt magnetic powder brake owing to use Current Control, it is also inconsistent that it loads moment of torsion output peak torque general and test products, so that can not obtain correct result.
With frictional disk as charger, uncontrollable loading moment of torsion.
Three, the collection of data of the present invention.
1) voltage signal of tested valve pneumatic means output torque sensor becomes digital signal to send industrial computer to store analog signal conversion through high-speed a/d converter.
2) voltage signal of tested valve pneumatic means baroceptor becomes digital signal to send industrial computer to store analog signal conversion through high-speed a/d converter.
3) corner of tested valve pneumatic means adopts pulse encoder output pulse, behind counting, send machine to store.Four, the control of system (consulting Fig. 2)
Adopt the I/O interface pilot relay of industrial computer; Further control the import and export air operated reversing valve of tested valve pneumatic means again; Thereby control the action of tested valve pneumatic means, also can directly control the import and export air operated reversing valve of tested valve pneumatic means through the button on the control box.The duty of system can reflect on the control box panel, also can on the display screen of industrial computer, reflect.
Above embodiment is more preferably embodiment a kind of of the present invention, and common variation that those skilled in the art carry out in present technique scheme scope and replacement should be included in protection scope of the present invention.
Claims (4)
1. valve pneumatic means open and close torque continuous test device and method of testing; It is characterized in that, constitute by loading component (1), pulse encoder (2), torque sensor (3), tested valve pneumatic means (4), baroceptor (5), control box (10), industrial computer (12), tested valve pneumatic means output shaft connector (14) and loading component output shaft connector (15); Tested valve pneumatic means (4) is arranged at the top of loading component (1); There is loading component output shaft connector (15) upper end of the vertical output shaft in the middle of the loading component (1); There is tested valve pneumatic means output shaft connector (14) vertical output shaft lower end in the middle of the tested valve pneumatic means (4); Tested valve pneumatic means output shaft connector (14) connects loading component output shaft connector (15), and torque sensor (3) is arranged at the flange connections between tested valve pneumatic means (4) and the loading component (1); Baroceptor (5) is installed on tested valve pneumatic means (4); Baroceptor (5) connects control box (10) through baroceptor wiring (6); Tested valve pneumatic means (4) connects control box (10) through control line (7), and torque sensor (3) connects control box (10) through torque sensor wiring (8); Pulse encoder (2) is installed on loading component (1), and pulse encoder (2) connects control box (10) through pulse encoder wiring (9); Control box (10) connects industrial computer (12); Industrial computer (12) connects printer (11) and display (13) respectively.
2. valve pneumatic means open and close torque continuous test device as claimed in claim 1 and method of testing; It is characterized in that; Comprise that also tested valve pneumatic means (4) is a two cylinder arrangement; Its two pistons interconnect through valve pneumatic means connecting link to be measured (16); Two cylinder outer ends of tested valve pneumatic means (4) connect three position four-way electromagnetic valve (19) through pipeline, and three position four-way electromagnetic valve (19) connects the relay (17) of control box (10), and relay (17) connects the I/O plate (18) of industrial computer (12).
3. valve pneumatic means open and close torque continuous test device as claimed in claim 1 and test method; It is characterized in that; Tested valve pneumatic means (4); Both can two cylinder arrangement pneumatic means as claimed in claim 2, also can be that other output shafts are made partly rotating other structural shape pneumatic means, pull formula etc. like single casing, pendulum.
4. valve pneumatic means open and close torque continuous test device as claimed in claim 1 and test method is characterized in that, loading component (1) is a cover twin-tub double-piston hydraulic device, and its two pistons connect mutually through connecting rod (29).The left side outlet of two cylinders is communicated with through threeway (23) and (24) with pipeline, and its right side outlet is communicated with through threeway (25) and (26) with pipeline; Threeway (24) is communicated with threeway (25) through throttling valve (20) with pipeline simultaneously; After using pipeline simultaneously and stop valve (21) is connected, threeway (23) leads to oil sump tank (27); After using pipeline simultaneously and stop valve (22) is connected, threeway (26) leads to evacuated tube (28) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100234142A CN102607752A (en) | 2011-01-21 | 2011-01-21 | Device for continuously testing opening and closing torques of valve pneumatic device and test method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100234142A CN102607752A (en) | 2011-01-21 | 2011-01-21 | Device for continuously testing opening and closing torques of valve pneumatic device and test method |
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| CN102607752A true CN102607752A (en) | 2012-07-25 |
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| CN2011100234142A Pending CN102607752A (en) | 2011-01-21 | 2011-01-21 | Device for continuously testing opening and closing torques of valve pneumatic device and test method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712784A (en) * | 2012-09-29 | 2014-04-09 | 北京航天发射技术研究所 | Detection device for load performance and water-spraying hydrodynamic characteristics of valve and pneumatic device |
| CN106568593A (en) * | 2014-03-14 | 2017-04-19 | 杨卫中 | Valve electric device service life test system with loading and overrun protection |
| CN108955968A (en) * | 2018-07-24 | 2018-12-07 | 黄山良业智能控制股份有限公司 | A kind of valve axial-force testing device and its test method |
| CN108981985A (en) * | 2018-07-24 | 2018-12-11 | 黄山良业智能控制股份有限公司 | A kind of axial-force testing device and its test method |
| CN110907166A (en) * | 2019-12-24 | 2020-03-24 | 杭州先锋电子技术股份有限公司 | Device and method for detecting durability of two-wire control valve |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712784A (en) * | 2012-09-29 | 2014-04-09 | 北京航天发射技术研究所 | Detection device for load performance and water-spraying hydrodynamic characteristics of valve and pneumatic device |
| CN103712784B (en) * | 2012-09-29 | 2016-08-03 | 北京航天发射技术研究所 | Valve, pneumatic means load performance and water spray hydrodynamics characteristic detection device |
| CN106568593A (en) * | 2014-03-14 | 2017-04-19 | 杨卫中 | Valve electric device service life test system with loading and overrun protection |
| CN106568593B (en) * | 2014-03-14 | 2019-03-01 | 杨卫中 | With loading and the electric device for valve service life experiment system for protection of transfiniting |
| CN108955968A (en) * | 2018-07-24 | 2018-12-07 | 黄山良业智能控制股份有限公司 | A kind of valve axial-force testing device and its test method |
| CN108981985A (en) * | 2018-07-24 | 2018-12-11 | 黄山良业智能控制股份有限公司 | A kind of axial-force testing device and its test method |
| CN110907166A (en) * | 2019-12-24 | 2020-03-24 | 杭州先锋电子技术股份有限公司 | Device and method for detecting durability of two-wire control valve |
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Application publication date: 20120725 |