CN202469148U - Valve rod stroke measurement awaken control device of electric actuator mechanism - Google Patents
Valve rod stroke measurement awaken control device of electric actuator mechanism Download PDFInfo
- Publication number
- CN202469148U CN202469148U CN2012201198158U CN201220119815U CN202469148U CN 202469148 U CN202469148 U CN 202469148U CN 2012201198158 U CN2012201198158 U CN 2012201198158U CN 201220119815 U CN201220119815 U CN 201220119815U CN 202469148 U CN202469148 U CN 202469148U
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- awaken
- magnetic pole
- valve rod
- measurement
- counter
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- Expired - Fee Related
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Abstract
The utility model discloses a valve rod stroke measurement awaken control device of an electric actuator mechanism, which comprises a hand wheel, an output shaft, a counter shaft, a pole measurement ring, a stroke sensor, an awaken sensor, an awaken control circuit, a spare battery, a counting controller, a valve position controller and a liquid crystal display. In the valve rod stroke measurement awaken control device, only a few members such as the counter shaft, the pole measurement ring, the stroke sensor, the awaken sensor, the awaken control circuit, the spare battery and the like are added, the valve rod stroke measurement awaken control device is simple in structure and accurate in detection result, and is convenient to implement; control on a valve switch during power off is realized; and the valve rod stroke measurement awaken control device has the advantages of small volume, light weight, high measurement precision and long service life, and can be used for more accurately controlling stroke measurement of a valve during no power.
Description
Technical field
The utility model relates to a kind of electric actuator, and the measurement of particularly a kind of electric actuator stem travel wakes control gear up.
Background technique
Electric actuator is claimed YE again, is a kind of drive unit that straight line can be provided or rotatablely move, and it utilizes certain driving source and work under certain control signal effect.Electric actuator generally adopts electric drive, but under the situation of unpowered electricity, can carry out manually-operable.
In the electric valve of electric actuator control, need under the situation of unpowered electricity, measure the stroke of control valve valve rod through manual operating device.Therefore in electric actuator, reserve battery need be housed; The measuring and controlling that in electric valve, is used at present to measure stem travel comprises handwheel, retarder, the stem travel measuring mechanism that connects through retarder and the Rouser that starts reserve battery.The Rouser of above-mentioned startup reserve battery adopts dry reed-pipe usually; Because mechanical life of dry reed-pipe is limited, and its breaks off along with rotation of counter axle can continue adhesive in proper functioning, so limited service life; In case dry reed-pipe damages, the work that wakes up had just been lost efficacy.Therefore the measuring and controlling of organizing the measurement stem travel that constitutes is difficult to guarantee proper functioning when unpowered electricity.
The model utility content
Deficiency to above-mentioned existing technology; The technical problem that the utility model will solve is: how a kind of age limit that does not have mechanical structure is provided; Little power consumption wake inductor up; Can avoid influencing electric actuator stem travel measurement proper functioning, make it under the situation of unpowered electricity, obtain measuring and control by the switching path to valve because of waking the inductor damage up.
In order to solve the problems of the technologies described above, adopted following technological scheme in the utility model:
The measurement of a kind of electric actuator stem travel wakes control gear up, comprises the valve positioner and the handwheel that is used to supply to control the power input that are used to control valve rod, is connected in the output shaft between handwheel and the valve rod; It is characterized in that; Also be provided with the counter axle, counter axle one end is connected with output shaft, and the other end of counter axle is set with the magnetic pole measuring ring; Said magnetic pole measuring ring is that ring and edge circumferentially are evenly distributed with three pairs of magnetic poles; Magnetic pole measuring ring middle part is vertically fixed on the counter axle, is distributed with the stroke inductor that is used to measure magnetic pole measuring ring rotational travel around the said magnetic pole measuring ring and is used to detect the inductor that wakes up whether the magnetic pole measuring ring rotate, and the stroke inductor links to each other with counter controller; Said counter controller one end connects liquid crystal display; The counter controller the other end connects said valve positioner, and said waking up connects reserve battery after inductor connects wake-up control circuit again, and reserve battery links to each other with said liquid crystal display with said counter controller.Wherein, Saidly be used to detect the inductor that wakes up whether the magnetic pole measuring ring rotate and belong to mature technology; Wake inductor up and mainly constitute, when the magnetic pole measuring ring begins to rotate, when the magnetic pole process is waken inductor up by magnetic induction part (like hall device); Wake inductor up and be output pulse signal in wake-up control circuit, and then the control reserve battery begins to counter controller and LCD device electric supply.The simultaneously said stroke inductor that is used to measure magnetic pole measuring ring rotational travel also is ripe existing technology; The stroke inductor also is mainly to be made up of magnetic induction part; Be used at magnetic pole measuring ring rotation process; When the magnetic pole measuring ring turned to the stroke sensor location at every turn, a pulse signal can sensed and send to the stroke inductor all, and then in counter controller, can cumulative calculation go out the number of turns that the magnetic pole measuring ring is rotated; And then draw the rotation number of turns of handwheel input, and converse the stroke size of valve rod.
The electric actuator stem travel measurement of the utility model wakes up in the control gear; Output shaft between handwheel and the valve rod is connected to the counter axle; When handwheel drives valve rod work through output shaft; Drive the magnetic pole measuring ring through the counter axle and rotate, just can go out the stem travel that handwheel controls through reducing gear and be recorded in the counter controller then, export by liquid crystal display through the result of counter controller measurement through being installed in stroke sensor measurement around the magnetic pole measuring ring; While counter controller control valve level controller; Can control accurately through the stroke of transmission shaft control valve rod handwheel according to measurement result, realize close-loop feedback control, improve control accuracy.Simultaneously; The counter axle rotates; Wake the inductor generation up and wake electrical pulse up; Through wake-up control circuit control reserve battery is power supplies such as counter controller, liquid crystal display, makes counter controller, liquid crystal display ability proper functioning, and the measurement control of stem travel can normally be carried out under the situation of unpowered electricity.
In the technological scheme, each member of employing self all belongs to ripe existing technology and product, so each member self concrete structure is not at this detailed description.
In sum; The utility model has only adopted the hall device of special little power consumption as waking inductor up; It is convenient to implement, and can guarantee to produce when the counter axle rotates to wake electrical pulse up, does not have the age limit of mechanical structure again; Simultaneously can realize close-loop feedback control, make control more reliable according to testing result.
Description of drawings
Structural representation block diagram when Fig. 1 is the utility model practical implementation.
Embodiment
Below in conjunction with accompanying drawing and embodiment the structure of the utility model is done further to specify.
During practical implementation; As shown in Figure 1, the measurement of a kind of electric actuator stem travel wakes control gear up, comprises the valve positioner 1 and the handwheel 2 that is used to supply to control the power input that are used to control valve rod; Be connected in the output shaft 4 between handwheel 2 and the valve rod; Also be provided with counter axle 5, counter axle 5 one ends are connected with output shaft 4, and the other end of counter axle 5 is set with magnetic pole measuring ring 6; Said magnetic pole measuring ring 6 is for ring and along circumferentially being evenly distributed with three pairs of magnetic poles; Magnetic pole measuring ring 6 middle parts are vertically fixed on the counter axle 5, are distributed with the stroke inductor 7 that is used to measure magnetic pole measuring ring 6 rotational travel around the said magnetic pole measuring ring 6 and are used to detect whether magnetic pole measuring ring 6 rotate wakes inductor 8 up, and stroke inductor 7 links to each other with counter controller 9; Said counter controller 9 one ends connect liquid crystal display 10; Counter controller 9 the other ends connect said valve positioner 1, and said waking up connects reserve battery 12 after inductor 8 connects wake-up control circuit 11 again, and reserve battery 12 links to each other with liquid crystal display 10 with counter controller 9.
Claims (1)
1. electric actuator stem travel measurement wakes control gear up, comprises the valve positioner and the handwheel that is used to supply to control the power input that are used to control valve rod, is connected in the output shaft between handwheel and the valve rod; It is characterized in that; Also be provided with the counter axle, counter axle one end is connected with output shaft, and the other end of counter axle is set with the magnetic pole measuring ring; Said magnetic pole measuring ring is that ring and edge circumferentially are evenly distributed with three pairs of magnetic poles; Magnetic pole measuring ring middle part is vertically fixed on the counter axle, is distributed with the stroke inductor that is used to measure magnetic pole measuring ring rotational travel around the said magnetic pole measuring ring and is used to detect the inductor that wakes up whether the magnetic pole measuring ring rotate, and the stroke inductor links to each other with counter controller; Said counter controller one end connects liquid crystal display; The counter controller the other end connects said valve positioner, and said waking up connects reserve battery after inductor connects wake-up control circuit again, and reserve battery links to each other with said liquid crystal display with said counter controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201198158U CN202469148U (en) | 2012-03-27 | 2012-03-27 | Valve rod stroke measurement awaken control device of electric actuator mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201198158U CN202469148U (en) | 2012-03-27 | 2012-03-27 | Valve rod stroke measurement awaken control device of electric actuator mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202469148U true CN202469148U (en) | 2012-10-03 |
Family
ID=46917307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201198158U Expired - Fee Related CN202469148U (en) | 2012-03-27 | 2012-03-27 | Valve rod stroke measurement awaken control device of electric actuator mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202469148U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194681A (en) * | 2018-01-19 | 2018-06-22 | 常州电站辅机股份有限公司 | The wake-up system of electric operator |
| CN108414059A (en) * | 2018-06-15 | 2018-08-17 | 常德思高技术有限公司 | A kind of liquid-level switch life test machine |
-
2012
- 2012-03-27 CN CN2012201198158U patent/CN202469148U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194681A (en) * | 2018-01-19 | 2018-06-22 | 常州电站辅机股份有限公司 | The wake-up system of electric operator |
| CN108194681B (en) * | 2018-01-19 | 2024-04-09 | 常州电站辅机股份有限公司 | Wake-up system of electric actuating mechanism |
| CN108414059A (en) * | 2018-06-15 | 2018-08-17 | 常德思高技术有限公司 | A kind of liquid-level switch life test machine |
| CN108414059B (en) * | 2018-06-15 | 2024-01-16 | 常德思高技术有限公司 | Liquid level switch life test machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20150327 |
|
| EXPY | Termination of patent right or utility model |