CN102384815A - Pressure meter detecting device - Google Patents
Pressure meter detecting device Download PDFInfo
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- CN102384815A CN102384815A CN2010102676222A CN201010267622A CN102384815A CN 102384815 A CN102384815 A CN 102384815A CN 2010102676222 A CN2010102676222 A CN 2010102676222A CN 201010267622 A CN201010267622 A CN 201010267622A CN 102384815 A CN102384815 A CN 102384815A
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Abstract
The invention provides a pressure meter detecting device, which comprises a control feedback loop, a motive power mechanism, a transmission mechanism, a stroke control mechanism, a driving device, an oil cylinder, a base, a work table, a valve assembly and a machine case, wherein the motive power mechanism comprises a servo motor and a speed reducer, the transmission mechanism consists of a lead screw and a screw nut, the stroke control mechanism comprises two position limiting switches, a guide rail and a slide block, the oil cylinder comprises an oil cylinder box, a piston and a piston rod, the servo motor, the speed reducer, the lead screw, the screw nut, the piston, a pressure protector and a pressure sensor are sequentially connected, a computer controls the driving device, the driving device controls the servo motor to drive the speed reducer, the lead screw and the piston to move, the pressure sensor detects the pressure and feeds back the signals to the computer, and the computer controls the operation power and the direction of the lead screw and the piston, so the output pressure of the system is the same as the set pressure, the pressure protector releases the pressure when the system is in an over pressure state, and the safety is ensured. The pressure output value of the pressure meter detecting device maintains the stable state for a long time, a pressure gauge and a pressure meter are detected and calibrated, and the precision of the detected instruments is improved.
Description
Technical field
The present invention relates to be used to examine and determine pressure gauge, manometric device, particularly a kind of pressure gauge calibrating installation.
Background technology
Pressure gauge, tensimeter are to be used in the display pipes or the instrument of the gentle pressure of down-hole oil pressure, so pressure gauge, manometric error are more little good more.But pressure gauge, tensimeter are in use for some time, particularly in the relatively medium-term and long-term use of rugged environment, error will occur, need this moment working pressure meter calibrating installation that pressure gauge, tensimeter are examined and determine and proofreaied and correct.Current pressure gauge calibrating installation is in the form of piston, and piston gage calibrating installation principle of work is that artificial rotary-piston pressurizes to oil cylinder, demarcates the fluid pressure in the oil cylinder with standard test weight, detects and the nominal pressure meter with demarcating good oil cylinder working-pressure again.Therefore, the pressure gauge calibrating installation complex operation of this piston mode, inconvenience, and, need experienced personnel constantly to continue to exert pressure because the seepage of liquid in the oil cylinder makes that the pressure in the oil cylinder can not keep for a long time.Make the stability of the pressure in the oil cylinder not high like this, accuracy is low.
Summary of the invention
The objective of the invention is for a kind of pressure gauge calibrating installation is provided, this pressure gauge calibrating installation pressure output is stable, pressure controling precision is high and pressure hold time length and easy to operate.
The technical scheme that adopts is: a kind of pressure gauge calibrating installation comprises Control and Feedback loop, actuating unit, gear train, range controlling mechanism, driver, oil cylinder, valve assembly, base, worktable, piston manometer and casing.Gear train is made up of leading screw and screw, and leading screw and screw are threaded, and screw is fixed on the worktable, and the upper surface of base is a worktable.
Its technical essential is: the Control and Feedback loop comprises computing machine and pressure transducer.The signal input part of driver is connected with the signal output part of computing machine, and the signal output part of driver is connected with the signal input part of servomotor.
Actuating unit comprises servomotor and reductor, and the output shaft of servomotor is connected with the input shaft of reductor, and servomotor and reductor are fixed on the slide block, and an end of leading screw is connected through the output shaft of shaft coupling and reductor.
Range controlling mechanism comprises first limit switch, second limit switch, two closed slides and slide block.The first stroke limit plate and the second stroke limit plate are installed on the worktable according to predefined stroke distances, are equiped with first limit switch on the first stroke limit plate, are equiped with second limit switch on the second stroke limit plate.The signal input part of first limit switch and second limit switch, signal output part are connected with the corresponding interface of computing machine respectively.Article two, closed slide is fixed on the worktable, and slide block is divided into two guideways, and two guideways are slidingly matched with two closed slides respectively.
Oil cylinder comprises cylinder body, piston and piston rod, and piston is fixedly connected with piston rod, and the inlet of cylinder body is connected with piston seal, and piston rod stretches out outside the cylinder body.The other end of leading screw is fixedly connected with piston rod; Cylinder body is fixed on the worktable through first bearing and second bearing; The endpiece of cylinder body is connected with pressure protector and pressure transducer; Pressure protector and pressure transducer are fixed on the worktable, and the signal input part of pressure transducer is connected with the pressure signal output terminal of oil cylinder, and the signal output part of pressure transducer is connected with the corresponding interface of computing machine.
Valve assembly comprises first valve, second valve, the 3rd valve and the 4th valve.The endpiece of cylinder body is connected with second valve, and first valve of valve assembly is connected with piston manometer, and piston manometer is fixed on the upper surface of casing.The 3rd valve is a pressure output.The 4th valve is connected with the calibrated meter joint, and its effect is the calibration subsurface pressure gauge.
Computing machine and control panel are installed in the casing of correspondence of casing.Actuating unit, gear train, range controlling mechanism, driver, oil cylinder, base, worktable and valve assembly are installed in the casing of correspondence of casing.
Its principle of work is: computing machine and pressure transducer are formed the Control and Feedback loop of this device, are controlling the rotating speed and the direction of servomotor.
The pressure output value of computer settings system; Computing machine sends steering order to driver; After driver is received the steering order of computing machine; The work of driver control servomotor, servomotor drive reductor, leading screw, piston forward or motion backward, pressurize or decompression to cylinder body through the motion of piston; Pressure transducer by being connected on the cylinder body comes detected pressures; Pressure signal feeds back to computing machine; The error of computing machine comparison system set pressure and detected pressures; Size and the positive and negative fortune merit size and Orientation of controlling leading screw, piston through error make that finally the output pressure of system is consistent with default pressure.Go to detect and nominal pressure meter, tensimeter with it.
The present invention is equipped with pressure protector, in case system pressure when overload, pressure protector can be opened delivery system pressure automatically, guarantees the safety of system, thereby improves safety grades of the present invention.
Its advantage is: pressure output value of the present invention can keep stable on long-time, goes to detect and nominal pressure meter, tensimeter with the present invention, can improve the accuracy class of instrument to be detected.
Description of drawings
Fig. 1 is a kind of structural representation of pressure gauge calibrating installation.
Fig. 2 is a kind of structural representation of actuating unit, gear train, range controlling mechanism, oil cylinder and valve assembly of pressure gauge calibrating installation.
Embodiment
A kind of pressure gauge calibrating installation comprises Control and Feedback loop, actuating unit, gear train, range controlling mechanism, driver 2, oil cylinder, valve assembly 14, base 24, worktable 27, piston manometer 19 and casing 25.Gear train is made up of leading screw 6 and screw 7, and leading screw 6 is threaded with screw 7, and screw 7 is fixed on the worktable 27, and the upper surface of base 24 is a worktable 27.
The Control and Feedback loop comprises computing machine 1 and pressure transducer 13.The signal input part of driver 2 is connected with the signal output part of computing machine 1, and the signal output part of driver 2 is connected with the signal input part of servomotor 3.
Actuating unit comprises servomotor 3 and reductor 4, and the output shaft of servomotor 3 is connected with the input shaft of reductor 4, and servomotor 3 is fixed on the slide block 23 with reductor 4, and an end of leading screw 6 is connected through the output shaft of shaft coupling 19 and reductor 4.
Range controlling mechanism comprises first limit switch 22, second limit switch 28, two closed slides 5 and slide blocks 23.The first stroke limit plate 8 and the second stroke limit plate 9 are installed on the worktable 27 according to predefined stroke distances, are equiped with on the first stroke limit plate 8 on first limit switch, 22, the second stroke limit plates 9 and are equiped with second limit switch 28.The signal input part of first limit switch 22 and second limit switch 28, signal output part are connected with the corresponding interface of computing machine 1 respectively.Article two, closed slide 5 is fixed on the worktable 27, and slide block 23 is divided into two guideways, and two guideways are slidingly matched with two closed slides 5 respectively.
Oil cylinder comprises cylinder body 11, piston 10 and piston rod 29, and piston 10 is fixedly connected with piston rod 29, and the inlet of cylinder body 11 and piston 10 are tightly connected, and piston rod 29 stretches out outside the cylinder body 11.The other end of leading screw 6 is fixedly connected with piston rod 29; Cylinder body 11 is fixed on the worktable 27 through first bearing 20 and second bearing 21; The endpiece of cylinder body 11 is connected with pressure protector 12 and pressure transducer 13; Pressure protector 12 is fixed on the worktable 27 with pressure transducer 13, and the signal input part of pressure transducer 13 is connected with the pressure signal output terminal of oil cylinder, and the signal output part of pressure transducer 13 is connected with the corresponding interface of computing machine 1.
Computing machine 1 and control panel 26 are installed in the casing of correspondence of casing 25.Actuating unit, gear train, range controlling mechanism, driver 2, oil cylinder, base 24, worktable 27 and valve assembly 14 are installed in the casing of correspondence of casing 25.
Claims (1)
1. a pressure gauge calibrating installation comprises Control and Feedback loop, actuating unit, gear train, range controlling mechanism, driver (2), oil cylinder, valve assembly (14), base (24), worktable (27), piston manometer (19) and casing (25); Gear train is made up of leading screw (6) and screw (7), and leading screw (6) and screw (7) are threaded, and screw (7) is fixed on the worktable (27), and the upper surface of base (24) is worktable (27);
It is characterized in that: the Control and Feedback loop comprises computing machine (1) and pressure transducer (13); The signal input part of driver (2) is connected with the signal output part of computing machine (1), and the signal output part of driver (2) is connected with the signal input part of servomotor (3);
Actuating unit comprises servomotor (3) and reductor (4); The output shaft of servomotor (3) is connected with the input shaft of reductor (4); Servomotor (3) and reductor (4) are fixed on the slide block (23), and an end of leading screw (6) is connected through the output shaft of shaft coupling (19) and reductor (4);
Range controlling mechanism comprises first limit switch (22), second limit switch (28), two closed slides (5) and slide block (23); The first stroke limit plate (8) and the second stroke limit plate (9) are installed on the worktable (27) according to predefined stroke distances; Be equiped with first limit switch (22) on the first stroke limit plate (8), be equiped with second limit switch (28) on the second stroke limit plate (9); The signal input part of first limit switch (22) and second limit switch (28), signal output part are connected with the corresponding interface of computing machine (1) respectively; Article two, closed slide (5) is fixed on the worktable (27), and slide block (23) is divided into two guideways, and two guideways are slidingly matched with two closed slides (5) respectively;
Oil cylinder comprises cylinder body (11), piston (10) and piston rod (29), and piston (10) is fixedly connected with piston rod (29), and the inlet of cylinder body (11) and piston (10) are tightly connected, and piston rod (29) stretches out outside the cylinder body (11); The other end of leading screw (6) is fixedly connected with piston rod (29); Cylinder body (11) is fixed on the worktable (27) through first bearing (20) and second bearing (21); The endpiece of cylinder body (11) is connected with pressure protector (12) and pressure transducer (13); Pressure protector (12) and pressure transducer (13) are fixed on the worktable (27); The signal input part of pressure transducer (13) is connected with the pressure signal output terminal of oil cylinder, and the signal output part of pressure transducer (13) is connected with the corresponding interface of computing machine (1);
Valve assembly (14) comprises first valve (15), second valve (16), the 3rd valve (17) and the 4th valve (18); The endpiece of cylinder body (11) is connected with second valve (16), and first valve (15) of valve assembly (14) is connected with piston manometer (19), and piston manometer (19) is fixed on the upper surface of casing (25); The 3rd valve (17) is a pressure output; The 4th valve (18) is connected with the calibrated meter joint;
Computing machine (1) and control panel (26) are installed in the casing of correspondence of casing (25); Actuating unit, gear train, range controlling mechanism, driver (2), oil cylinder, base (24), worktable (27) and valve assembly (14) are installed in the casing of correspondence of casing (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102676222A CN102384815A (en) | 2010-08-31 | 2010-08-31 | Pressure meter detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102676222A CN102384815A (en) | 2010-08-31 | 2010-08-31 | Pressure meter detecting device |
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| CN102384815A true CN102384815A (en) | 2012-03-21 |
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| CN2010102676222A Pending CN102384815A (en) | 2010-08-31 | 2010-08-31 | Pressure meter detecting device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879273A (en) * | 2012-10-09 | 2013-01-16 | 中天科技精密材料有限公司 | Measuring device and measuring method for loose degree of powder bar |
| CN106370875A (en) * | 2016-11-02 | 2017-02-01 | 南京泰克奥科技有限公司 | Pressure volume controller |
| CN108121374A (en) * | 2016-11-30 | 2018-06-05 | 北京航天计量测试技术研究所 | A kind of capacity high-pressure gas pressure control device |
| CN109387326A (en) * | 2018-12-10 | 2019-02-26 | 南京工程学院 | The fast tune servomechanism installation of air pressure in a kind of confined space |
| CN112406314A (en) * | 2020-09-18 | 2021-02-26 | 季华实验室 | Pressure precision correction device, system and method and ink-jet printer |
| CN114486068A (en) * | 2021-12-24 | 2022-05-13 | 昆明五威科工贸有限公司 | Pressure sensor performance parameter calibration testing arrangement |
| CN114689241A (en) * | 2020-12-25 | 2022-07-01 | 财团法人工业技术研究院 | Pressure sensor calibration system |
| WO2022188308A1 (en) * | 2021-03-09 | 2022-09-15 | 江南大学 | Pressure control system and method for liquid medium for measurement accuracy testing of pressure meter |
| CN119063910A (en) * | 2024-11-06 | 2024-12-03 | 杭州鑫高科技有限公司 | Pressure gauge calibration device and calibration method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2038236U (en) * | 1988-10-22 | 1989-05-24 | 魏仁琛 | Pressure vacuum meter parity checker |
| CN2562177Y (en) * | 2002-08-27 | 2003-07-23 | 李尚文 | Pressure gauge verifier |
| CN101126385A (en) * | 2007-09-25 | 2008-02-20 | 谢显奇 | Self-controlled pump and standard force-measuring device adopting the self-controlled pump |
| CN201811820U (en) * | 2010-08-31 | 2011-04-27 | 沈阳兴大通仪器仪表有限公司 | Pressure gauge calibration device |
-
2010
- 2010-08-31 CN CN2010102676222A patent/CN102384815A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2038236U (en) * | 1988-10-22 | 1989-05-24 | 魏仁琛 | Pressure vacuum meter parity checker |
| CN2562177Y (en) * | 2002-08-27 | 2003-07-23 | 李尚文 | Pressure gauge verifier |
| CN101126385A (en) * | 2007-09-25 | 2008-02-20 | 谢显奇 | Self-controlled pump and standard force-measuring device adopting the self-controlled pump |
| CN201811820U (en) * | 2010-08-31 | 2011-04-27 | 沈阳兴大通仪器仪表有限公司 | Pressure gauge calibration device |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879273A (en) * | 2012-10-09 | 2013-01-16 | 中天科技精密材料有限公司 | Measuring device and measuring method for loose degree of powder bar |
| CN102879273B (en) * | 2012-10-09 | 2015-02-04 | 中天科技精密材料有限公司 | Measuring device and measuring method for loose degree of powder bar |
| CN106370875A (en) * | 2016-11-02 | 2017-02-01 | 南京泰克奥科技有限公司 | Pressure volume controller |
| CN108121374A (en) * | 2016-11-30 | 2018-06-05 | 北京航天计量测试技术研究所 | A kind of capacity high-pressure gas pressure control device |
| CN109387326A (en) * | 2018-12-10 | 2019-02-26 | 南京工程学院 | The fast tune servomechanism installation of air pressure in a kind of confined space |
| CN109387326B (en) * | 2018-12-10 | 2023-08-25 | 南京工程学院 | A fast-adjustment servo device for air pressure in a confined space |
| CN112406314B (en) * | 2020-09-18 | 2022-01-04 | 季华实验室 | Pressure precision correction system, method and inkjet printer |
| CN112406314A (en) * | 2020-09-18 | 2021-02-26 | 季华实验室 | Pressure precision correction device, system and method and ink-jet printer |
| CN114689241A (en) * | 2020-12-25 | 2022-07-01 | 财团法人工业技术研究院 | Pressure sensor calibration system |
| WO2022188308A1 (en) * | 2021-03-09 | 2022-09-15 | 江南大学 | Pressure control system and method for liquid medium for measurement accuracy testing of pressure meter |
| CN114486068A (en) * | 2021-12-24 | 2022-05-13 | 昆明五威科工贸有限公司 | Pressure sensor performance parameter calibration testing arrangement |
| CN114486068B (en) * | 2021-12-24 | 2023-11-21 | 昆明五威科工贸有限公司 | Pressure sensor performance parameter verification testing device |
| CN119063910A (en) * | 2024-11-06 | 2024-12-03 | 杭州鑫高科技有限公司 | Pressure gauge calibration device and calibration method |
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Application publication date: 20120321 |