CN207096832U - A kind of capacity high-pressure gas pressure control device - Google Patents
A kind of capacity high-pressure gas pressure control device Download PDFInfo
- Publication number
- CN207096832U CN207096832U CN201621300946.0U CN201621300946U CN207096832U CN 207096832 U CN207096832 U CN 207096832U CN 201621300946 U CN201621300946 U CN 201621300946U CN 207096832 U CN207096832 U CN 207096832U
- Authority
- CN
- China
- Prior art keywords
- worm
- screw
- turn
- pressure
- piston chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Control Of Fluid Pressure (AREA)
Abstract
A kind of capacity high-pressure gas pressure control device, including piston chamber 9, worm and gear gearbox 7, there is normal pressure to export 1 in the left side of piston chamber 9, upper right has pneumostome 3, and there is piston 2 inside piston chamber 9, piston 2 connects the left end of turn-screw 6, and low order end of the turn-screw 6 successively by lead limit switch 8, worm and gear gearbox 7, and turn-screw 6 after the outflow of the right side of piston chamber 9 spreads out of the right side of worm and gear gearbox 7；Total travel displacement transducer 4 is installed on turn-screw 6, and servomotor and reductor 5 are installed on worm and gear gearbox 7.
Description
Technical field
The technology belongs to Stress control field, and in particular to a kind of capacity high-pressure gas pressure control device.
Background technology
Accurate adjustment with control high-pressure gas pressure be realize high-pressure gas pressure sensor element with calibration premise and
Basis, the gas of high-pressure gas pressure field calibration device are derived from gas cylinder, and gas is extremely passed by Pipeline transport by correction power
Sensor, so as to realize the metering of high-pressure gas pressure sensor and alignment purpose.
As the gas medium of calibrating pressure sensor, its pressure must meet to be calibrated pressure sensor working pressure range
With the alignment requirements of practical application.Therefore, gas medium must the regulation through excess pressure and controlling unit, and then be delivered to again in advance
It is calibrated pressure sensor.It is to influence pressure transducer calibration data standard because gas medium pressure is adjusted with the degree of accuracy controlled
The principal element of exactness, so being to realize height using which kind of pressure controling mode and the pressure for how being precisely controlled gas medium
The premise of pressure sensor of calming the anger high accuracy calibration.
The regulation of gas medium pressure and control method in current existing pressure measurement calibrating installation, mainly using hand
Dynamic control valve or the pressure reducer using internationally renowned brand, piston gage coordinate counterweight using piston rod, utilize
Piston rod area realizes gas medium pressure control with counterweight counterweight functional relation.These methods are in mesolow measurement and calibration side
Face can reach certain pressure control accuracy, in case of high pressures, the following problem of generally existing：
(1) pressure regulation spectrum is small, it is difficult to the wide pressure limit regulation taken into account；
(2) pressure overshoot, regulating time length are easily produced；
(3) mesohigh degree of regulation is poor, and degree of regulation can not meet actual alignment accuracy requirement；
Due to these shortcomings, the measurement and calibration of high accuracy high pressure wide range pressure can not still be realized.
Utility model content
The purpose of this utility model is：A kind of capacity high-pressure gas pressure control device is provided, realizes gases at high pressure
Minute-pressure regulation.
The technical solution of the utility model is as follows：A kind of capacity high-pressure gas pressure control device, including piston chamber,
Worm and gear gearbox, there is normal pressure outlet on the left of piston chamber, upper right has pneumostome, and in piston chamber
There is a piston in portion, and piston connects the left end of turn-screw, and turn-screw after the outflow of the right side of piston chamber successively through overtravel
Limit switch, worm and gear gearbox, and the low order end of turn-screw passes the right side of worm and gear gearbox.
Total travel displacement transducer is installed on turn-screw.
Servomotor and reductor are installed on worm and gear gearbox.
Remarkable result of the present utility model is：The servomechanism design variable volume pressure that the utility model uses is accurate
Control device is pressure fine-adjustment device, and the resolution ratio of servo control mechanism is up to 0.01 degree of grade.
Brief description of the drawings
Fig. 1 is in a kind of twin-stage high-pressure gas pressure precise adjustment-control device schematic diagram figure described in the utility model：1
Normal pressure outlet, 2 pistons, 3 pneumostomes, 4 total travel displacement transducers, 5 servomotors, 6 turn-screws, 7 worm and gears
Gearbox, 8 lead limit switches, 9 piston chamber
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail to the utility model.
A kind of capacity high-pressure gas pressure control device, including piston chamber 9, worm and gear gearbox 7, in plunger shaft
The left side of room 9 has normal pressure to export 1, and upper right has pneumostome 3, and has piston 2 inside piston chamber 9, and piston 2 connects
The left end of turn-screw 6 is connect, and turn-screw 6 passes through lead limit switch 8, snail successively after the outflow of the right side of piston chamber 9
Worm and gear gearbox 7, and the low order end of turn-screw 6 passes the right side of worm and gear gearbox 7；Installed on turn-screw 6
There is total travel displacement transducer 4, and servomotor and reductor 5 are installed on worm and gear gearbox 7.
During specific works, thrust is provided by servomotor 5, worm and gear gearbox 7 drives turn-screw 6 to rotate,
So as to promote piston 2 to move, change the volume of piston chamber 9, reach pressure controlled purpose, lead limit switch 8 is with transmission
Leading screw 6 rotates, so as to which lead limit switch 8 changes with the relative position of total travel displacement transducer 4, so that piston chamber
9 volume changes, so as to realize the accurate regulation of normal pressure.
Claims (3)
- A kind of 1. capacity high-pressure gas pressure control device, it is characterised in that：Including piston chamber (9), worm and gear speed change Case (7), there is normal pressure to export (1) on the left of piston chamber (9), upper right has pneumostome (3), and in piston chamber (9) it is internal to have a piston (2), the left end of piston (2) connection turn-screw (6), and turn-screw (6) is from the right side of piston chamber (9) Successively by lead limit switch (8), worm and gear gearbox (7), and the low order end of turn-screw (6) passes snail after the outflow of side The right side of worm and gear gearbox (7).
- A kind of 2. capacity high-pressure gas pressure control device according to claim 1, it is characterised in that：In turn-screw (6) total travel displacement transducer (4) is installed on.
- A kind of 3. capacity high-pressure gas pressure control device according to claim 1, it is characterised in that：Worm and gear becomes Servomotor and reductor (5) are installed on fast case (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621300946.0U CN207096832U (en) | 2016-11-30 | 2016-11-30 | A kind of capacity high-pressure gas pressure control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621300946.0U CN207096832U (en) | 2016-11-30 | 2016-11-30 | A kind of capacity high-pressure gas pressure control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207096832U true CN207096832U (en) | 2018-03-13 |
Family
ID=61546898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621300946.0U Active CN207096832U (en) | 2016-11-30 | 2016-11-30 | A kind of capacity high-pressure gas pressure control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207096832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2016
- 2016-11-30 CN CN201621300946.0U patent/CN207096832U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104117554B (en) | A kind of high-accuracy straightening machine automatic control system and control method | |
| CN103615436B (en) | Steel tube straightening machine numerical control electrohydraulic ratio system | |
| CN101634862B (en) | Control method of opening of large flow throttle valve for water | |
| CN104832466B (en) | A kind of variable area specific pressure multiplying assembly and control method | |
| CN204591851U (en) | Multistage flow pressure compound control system | |
| CN103017976B (en) | Backpressure balanced type liquid high pressure regulation device | |
| CN105058833B (en) | Numerical control hydraulic machine | |
| CN102519669B (en) | Pressure fluctuation calibrating device of pressure or differential pressure sensor and calibrating method thereof | |
| CN102606786A (en) | Electric-hydraulic valve as well as control device and control method thereof | |
| CN106270098A (en) | A kind of variable mold clamping force internal high-pressure forming machine | |
| CN201569906U (en) | Hydraulic and electronic integration closed loop proportioning controller | |
| CN103123042A (en) | Variable air-capacitor device | |
| CN207096832U (en) | A kind of capacity high-pressure gas pressure control device | |
| CN102384815A (en) | Pressure meter detecting device | |
| CN108121374A (en) | A kind of capacity high-pressure gas pressure control device | |
| CN102380569A (en) | Control method for setting constant speed, constant strain and variable strain process pressing curve | |
| CN203784007U (en) | Single piston rod symmetric digital servo hydraulic cylinder | |
| CN103671293B (en) | Floating weight of banbury mixer oil cylinder hydraulic control method and device | |
| CN206999733U (en) | High-accuracy hydraulic press system device | |
| CN103344373B (en) | Method for carrying out pressure fluctuation calibration on pressure sensor | |
| CN203614472U (en) | Internal mixer top peg oil cylinder hydraulic control device | |
| CN201811820U (en) | Pressure gauge calibration device | |
| CN103707547B (en) | A kind of on-line calibration tablet machine pinch roller and the method for filling mechanism position | |
| CN202453145U (en) | Pressure oscillation demarcating device of pressure or differential pressure sensor | |
| CN205977867U (en) | Mixed for servo push rod hydro -cylinder device of electricity liquid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |