CN204922125U - Remote control voltage regulator - Google Patents
Remote control voltage regulator Download PDFInfo
- Publication number
- CN204922125U CN204922125U CN201520698457.4U CN201520698457U CN204922125U CN 204922125 U CN204922125 U CN 204922125U CN 201520698457 U CN201520698457 U CN 201520698457U CN 204922125 U CN204922125 U CN 204922125U
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- CN
- China
- Prior art keywords
- pressure
- telecontrol
- ball screw
- pressure governor
- chip microcomputer
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- 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.)
- Expired - Fee Related
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- Control Of Fluid Pressure (AREA)
Abstract
The utility model discloses a remote control voltage regulator, including the singlechip for receive and handle the incoming signal of pressure collecting device, and pass through the pulse signal output processing result, stepping motor drive circuit for receive the pulse signal of singlechip output, the control stepper motor produces drive power, the worm wheel lead screw device that progresses greatly for produce the displacement under step motor's drive, control voltage regulator switching value. The utility model discloses an installation progresses greatly the device by single chip microcomputer control's worm wheel lead screw and realizes gas pressure regulator automatic voltage regulation on gas pressure regulator's controller, has that the precision of regulation is high, dynamic behavior is good, can in good time remote automatic control, job stabilization is reliable.
Description
Technical field
The utility model relates to the pressure governor of gas transmission and distribution, is specifically related to a kind of telecontrol pressure governor.
Background technique
Pressure governor refers to the decompressor be exclusively used on fluid fed sheet of a media.The valvular feature of voltage regulation utensil, can control break-make and the throttling of fluid, and self forms a closed loop control system, does not need other supplementary energies, only takes from the pressure difference of fluid itself as the operation energy.The maximum effect of pressure governor keeps combustion gas to have stable pressure in use, thus ensure that gas appliance obtains stable fuel air ratio (mixing ratio of combustion gas and air); Use pressure governor to be reduced by gas pressure in fuel gas supply system and be stabilized on a proper level that gas can be made to obtain safety, economy and efficiency utilization.
In pressure governor, the power of pressure adjusting spring effect acts directly on epithelium, adjusts mouth pressure by the reduction length of Regulation spring.Epithelium epicoele is pressure adjusting spring, and cavity of resorption air pressure is from pressure governor outlet end air pressure, and the active force of spring is balanced by cavity of resorption air pressure; When user's gas consumption increases, outlet pressure declines, and under epithelium, cavity pressure reduces, due to the effect of pressure adjusting spring simultaneously, epithelium moves down, and drives flap to move down by valve rod, and pressure governor valve port opening is increased, outlet pressure increases, the active force of balance spring, thus guarantee gas; When exporting gas consumption and reducing, its effect is contrary with said process.When exporting stopping gas, flap is also in open mode, due to the reason of inlet outlet pressure differential, outlet end air pressure rises, and under epithelium, cavity pressure increases, and band ovable valve stem and flap move upward, until flap becomes closed condition with valve port, now, outlet end air pressure keeps stable.On the epithelium that inlet pressure acts on pressure governor respectively and flap, act on two contrary directions, thus the fluctuation eliminating inlet pressure is on the impact of outlet pressure.Balance directly impact closes performance, and when inlet pressure power is upwards less than downward power, closing pressure increases; Otherwise, then on the contrary.
But existing gas pressure regulator, governor pressure regulation is nearly all adopt a set of mechanical pressure adjusting device, carry out on-site manual adjustment with adjusting screw rod or adjustment plug screw, this structure regulation precision is poor, and dynamic performance cannot meet high requirement, cannot realize automatically controlling and remote auto observing and controlling, waste of manpower resource.
Model utility content
The purpose of this utility model is to provide a kind of telecontrol pressure governor, realizes automatically controlling and remote auto observing and controlling.
For reaching above-mentioned purpose, the technological scheme that the utility model adopts is: provide a kind of telecontrol pressure governor to comprise single-chip microcomputer, for receiving and the input signal of processing pressure collecting device, and by output of pulse signal processing result; Stepper motor driving circuit, for receiving the pulse signal that single-chip microcomputer exports, control step motor generates driving force; Worm-screw fine propulsion device, for producing displacement under the driving of stepper motor, controls pressure governor switching value.
Optimize, Worm gear feed screw progresses greatly device, comprises ball screw pair, the worm reduction gear be connected with stepper motor and is located at the fore-set of ball screw pair upper end; The output shaft of worm reduction gear is connected with the ball screw of ball screw pair, and the feed screw nut of ball screw pair is provided with optical axis for fixing feed screw nut and box linear bearing.
Optimizing, also comprising the display device, transceiver and the load module for inputting setting pressure that are connected with single-chip microcomputer.
Optimize, ball screw is provided with upper limit position switch and lower position switch; Feed screw nut is provided with slide potentiometer; Box linear bearing is arranged on optical axis, and optical axis and box bearing are symmetricly set on the both sides of feed screw nut.
Optimize, single-chip microcomputer is provided with remote communication interface.
In sum, the utility model has the following advantages:
1, the utility model by installing worm-screw fine propulsion device, realizing gas pressure regulator, governor automatic Regulation with the single-chip microcomputer of remote communication interface and the stepper motor of generation driving force on the controller of gas pressure regulator, governor, have that degree of regulation is high, dynamic performance good, can in good time remote auto control, the reliable feature of working stability.
accompanying drawing illustrates `
Fig. 1 is the electrical principle skeleton diagram of the utility model telecontrol pressure governor;
Fig. 2 is the worm-screw fine propulsion device schematic diagram of the utility model telecontrol pressure governor;
Wherein, 1, fore-set; 2, upper limit position switch; 3, lower position switch; 4, feed screw nut; 5, ball screw pair; 6, worm reduction gear; 7, slide potentiometer; 8, optical axis; 9, box linear bearing; 10, stepper motor.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
In an embodiment of the present utility model, as shown in Figure 1, provide a kind of telecontrol pressure governor and comprise single-chip microcomputer, for receiving and the input signal of processing pressure collecting device, and by output of pulse signal processing result; Stepper motor driving circuit, for receiving the pulse signal that single-chip microcomputer exports, control step motor generates driving force; Worm-screw fine propulsion device, for producing displacement under the driving of stepper motor, controls pressure governor switching value.
Worm gear feed screw progresses greatly device, comprises ball screw pair 5, the worm reduction gear 6 be connected with stepper motor and the fore-set 1 being located at ball screw pair upper end; The output shaft of worm reduction gear 6 is connected with the ball screw of ball screw pair 5, and the feed screw nut 4 of ball screw pair 5 is provided with optical axis 8 for fixing feed screw nut and box linear bearing 9; Ball screw is provided with upper limit position switch 2 and lower position switch 3, and feed screw nut 4 is provided with slide potentiometer 7; Fore-set 1 is connected with the valve rod of the switching value controlling pressure governor.
Also comprise the display device, transceiver and the load module for inputting setting pressure that are connected with single-chip microcomputer; Transceiver can be MAX487 chip, and be a kind of semiduplex communication low power consumption transponder chip, it contains a driver and a receiver.
The gas pressure regulator, governor inlet pressure p that system will be measured
1with outlet pressure p
2display over the display, and is transferred in single-chip microcomputer.Operator can input the outlet pressure p of required setting by load module
0, also can be communicated by RS485 and realize remote setting outlet pressure p
0.CPU on single-chip microcomputer requires the pressure p of setting receiving
0afterwards, after treatment, the pulse of generation and positive/negative rotaring signal are transferred to the drive circuit of stepper motor, make worm-screw fine propulsion device setting in motion.Progress greatly in process at this device, outlet pressure p2 arrives setting outlet pressure p
0time, CPU stops sending pulse, completes setting outlet pressure and regulates.
Because the stroke of gas pressure regulator, governor controller fore-set 1 is very little, usually within 30mm, so system utilizes stepper motor 10 accurately to control angle of swing and the number of turns, worm reduction gear 6 increases output torque and slows down simultaneously, adopts ball screw pair 5 to be realize fine displacements according to the displacement principle that progresses greatly of numerical control machine tool.
Stepper motor 10 rotates and drives worm reduction gear 6, worm reduction gear 6 is connected with ball screw pair 5, the effect of box linear bearing 9 and optical axis 8 is used to the rotation of fixing ball screw nut, optical axis 8 does vertical motion, thus make ball screw produce vertical motion, promote the movement of upper end fore-set 1, a round iron sheet slightly larger than leading screw diameter is installed at the top of ball screw, effect is to trigger slide potentiometer 7 and two limit switches, simultaneously in order to prevent limit switch from shaking the false triggering produced, in hardware circuit, devise corresponding control circuit.
The oscillation signal frequency of the single-chip microcomputer that system uses is 16MHz, and the arithmetic speed of instruction is faster; 8 A/D passages, can realize controlled device multipoint voltage and current sample easily; There are 3 road width-modulation pulses export; Except the serial port by CPU can realize asynchronous serial port communications, also add synchronous serial interface, multiple standards synchronous serial host-host protocol can be supported.
Optimal enforcement example of the present utility model, box linear bearing 9 is arranged on optical axis 8, and optical axis 8 and box bearing 9 are symmetricly set on the both sides of feed screw nut 4; Single-chip microcomputer is provided with remote communication interface.
In order to protect pressure governor; controller can prevent actuator from exceeding rated travel; a slide potentiometer 7 is installed on the apparatus to measure the position of final controlling element top in whole stroke, has utilized upper limit position switch 2 and lower position switch 3 to realize working as the protection of the malfunctioning situation lower device of slide potentiometer 7 in addition.
During due to each pressure regulation, inlet pressure is all non-constant, so the displacement distance of fore-set 1 is also just non-constant, so just cannot by judging that the electric current flowing through slide potentiometer 7 carries out pressure regulation, but single-chip microcomputer has remote communication interface, single-chip microcomputer is by step motor control worm-screw fine propulsion device, when this device and other devices form a system, upper-position unit can utilize these parameters to build intelligent system, thus the closed-loop feedback that the electric current flow through under being based upon different inlet pressure situation on slide potentiometer 7 and leading screw progress greatly between displacement, formed except utilizing outlet pressure and the leading screw the second of closed-loop feedback between displacement that progresses greatly to feed back.Common lead screw is not selected in worm-screw fine propulsion device, reason is: screw mandrel operationally will rotate repeatedly, and bear larger axial force, will there are wearing and tearing in common lead screw after a period of operation on that section often slided, control accuracy is directly caused significantly to decline, the requirement of systematic function cannot be met, and ball screw changes the slip in common lead screw as rolling into, mechanical property is greatly improved, and its mobile accuracy is also very high, control overflow can be ensured completely, so select ball screw as executive component rotary motion being converted to straight line motion.
Although describe in detail embodiment of the present utility model by reference to the accompanying drawings, should not be construed as the restriction of the protection domain to this patent.In the scope described by claims, the various amendment that those skilled in the art can make without creative work and distortion still belong to the protection domain of this patent.
Claims (7)
1. a telecontrol pressure governor, is characterized in that: comprise
Single-chip microcomputer, for receiving and the input signal of processing pressure collecting device, and by output of pulse signal processing result;
Stepper motor driving circuit, for receiving the pulse signal that single-chip microcomputer exports, control step motor generates driving force;
Worm-screw fine propulsion device, for producing displacement under the driving of described stepper motor, controls pressure governor switching value.
2. telecontrol pressure governor as claimed in claim 1, is characterized in that: described worm-screw fine propulsion device comprises ball screw pair, the worm reduction gear be connected with stepper motor and is located at the fore-set of ball screw pair upper end; The output shaft of described worm reduction gear is connected with the ball screw of ball screw pair, and the feed screw nut of described ball screw pair is provided with optical axis for fixing feed screw nut and box linear bearing.
3. telecontrol pressure governor as claimed in claim 1, is characterized in that: also comprise the display device, transceiver and the load module for inputting setting pressure that are connected with single-chip microcomputer.
4. telecontrol pressure governor as claimed in claim 1, is characterized in that: described ball screw is provided with upper limit position switch and lower position switch.
5. telecontrol pressure governor as claimed in claim 1, is characterized in that: described feed screw nut is provided with slide potentiometer.
6. telecontrol pressure governor as claimed in claim 1, it is characterized in that: described box linear bearing is arranged on optical axis, and optical axis and box bearing is symmetricly set on the both sides of feed screw nut.
7. telecontrol pressure governor as claimed in claim 1, is characterized in that: described single-chip microcomputer is provided with remote communication interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520698457.4U CN204922125U (en) | 2015-09-10 | 2015-09-10 | Remote control voltage regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520698457.4U CN204922125U (en) | 2015-09-10 | 2015-09-10 | Remote control voltage regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204922125U true CN204922125U (en) | 2015-12-30 |
Family
ID=54971254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520698457.4U Expired - Fee Related CN204922125U (en) | 2015-09-10 | 2015-09-10 | Remote control voltage regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204922125U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253178A (en) * | 2018-01-11 | 2018-07-06 | 航天科工哈尔滨风华有限公司电站设备分公司 | A kind of multifunctional motor-driven actuator system |
-
2015
- 2015-09-10 CN CN201520698457.4U patent/CN204922125U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253178A (en) * | 2018-01-11 | 2018-07-06 | 航天科工哈尔滨风华有限公司电站设备分公司 | A kind of multifunctional motor-driven actuator system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Remote control voltage regulator Effective date of registration: 20180130 Granted publication date: 20151230 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: Chengdu Huatai Gas Equipment Co., Ltd. Registration number: 2018510000008 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20180910 |