CN204202790U - Moment measuring device - Google Patents
Moment measuring device Download PDFInfo
- Publication number
- CN204202790U CN204202790U CN201420544081.7U CN201420544081U CN204202790U CN 204202790 U CN204202790 U CN 204202790U CN 201420544081 U CN201420544081 U CN 201420544081U CN 204202790 U CN204202790 U CN 204202790U
- Authority
- CN
- China
- Prior art keywords
- sensing
- worm screw
- actuating mechanism
- intelligent electric
- measuring device
- 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.)
- Expired - Fee Related
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- Force Measurement Appropriate To Specific Purposes (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The utility model discloses a kind of moment measuring device, comprise worm screw and be mated the sensing shaft of rotation, between worm screw and sensing shaft, bearing is installed, between bearing and worm screw, back-up ring is installed, this sensing shaft side is provided with sensing support, this support is provided with a foil gauge, this foil gauge can experience the distortion of sensing support, and signal is transferred to a detecting unit by an electric current bridge.The utility model provides a kind of moment measuring device, for the intelligent electric actuating mechanism in electrically operated valve field, can be able to accomplish to feed back in real time, accurately to the change of torque, the various requirement to direct torque precision when substantially increasing intelligent electric actuating mechanism onsite application.Greatly improve the usable range of intelligent electric actuating mechanism in various pipe system.
Description
Technical field
The utility model relates to valve manufacture field, is specifically related to a kind of moment measuring device for valve.
Background technology
Intelligent electric actuating mechanism is the important device of by-pass valve control, is to form the indispensable elementary cell of various pipe system; To the accurate detection of intelligent electric actuating mechanism Driving Torque, control the valve prevented because over torque causes, the improper damage of intelligent electric actuating mechanism, and even pipe system is normally run and important protective effect;
Current intelligent electric actuating mechanism manufacturer generally generally adopts following two kinds of methods to torque feedback: the first, the difference of electric current concrete numerical value when utilizing motor different output load, then confirmed the actual value of intelligent electric actuating mechanism Driving Torque by certain conversion; This method because of during motor actual motion when identical output electric current can affect by temperature, input voltage, sea level elevation and occur change and accurately cannot detect the actual Driving Torque of intelligent electric actuating mechanism; The second, utilize the axial thrust of worm screw in worm gear, worm transmission pair, controlling worm screw axial displacement by arranging butterfly spring at worm screw two ends, detecting axial displacement, then according to the actual Driving Torque of stressed relation conversion place intelligent electric actuating mechanism; This method when reality uses when torque change is not obvious because axial displacement is very little, accomplish accurately to detect to be difficult to, intelligence detects roughly, namely can accomplish that torque capacity detects, but cannot detect the overall process that torque changes accurately.
Utility model content
The utility model provides a kind of moment measuring device, its objective is the torque change for accurately measuring electric operator.
The utility model solves the technical scheme that its technical matters adopts:
One Tension Moment pick-up unit, comprise worm screw and be mated the sensing shaft of rotation, between worm screw and sensing shaft, bearing is installed, between bearing and worm screw, back-up ring is installed, this sensing shaft side is provided with sensing support, this support is provided with a foil gauge, this foil gauge can experience the distortion of sensing support, and signal is transferred to a detecting unit by an electric current bridge.
The utility model provides a kind of moment measuring device, for the intelligent electric actuating mechanism in electrically operated valve field, can be able to accomplish to feed back in real time, accurately to the change of torque, the various requirement to direct torque precision when substantially increasing intelligent electric actuating mechanism onsite application.Greatly improve the usable range of intelligent electric actuating mechanism in various pipe system.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described.
Fig. 1 is the structural representation of a kind of moment measuring device that the utility model embodiment provides;
Numeral in Fig. 1: 1, sensing shaft 2, bearing 3, worm screw 4, back-up ring
5, sensing support 6, foil gauge 7, electric current bridge 8, detecting unit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.
According to Fig. 1, a kind of moment measuring device, comprise worm screw 3 and be mated the sensing shaft 1 of rotation, bearing 2 is installed between worm screw 3 and sensing shaft 1, be provided with back-up ring 4 between bearing 2 and worm screw 3, this sensing shaft 1 side is provided with sensing support 5, this support is provided with a foil gauge 6, this foil gauge 6 can experience the distortion of sensing support 5, and signal is transferred to a detecting unit 8 by an electric current bridge 7.
In the technical program, electric current bridge 7 is digital D. C. bridge, and it is based on Wheatstone bridge circuit, is the renewal product of benchmark with Precise Alloy wire resistor.Digital D. C. bridge has digital multimeter feature easy, quick, eye-catching equally, also maintains accurate, stable, the reliable advantage of Wheatstone bridge.Above-mentioned detecting unit 8 is general detection module, for the signal of received current bridge 7, its Installation and Debugging and programming are that general technician is known, the technical program is to provide a kind of technical scheme relating to structural change newly, coordinate existing detection mode, realize intellectuality and the robotization of detection.
The utility model provides a kind of moment measuring device, for the intelligent electric actuating mechanism in electrically operated valve field, can be able to accomplish to feed back in real time, accurately to the change of torque, the various requirement to direct torque precision when substantially increasing intelligent electric actuating mechanism onsite application.Greatly improve the usable range of intelligent electric actuating mechanism in various pipe system.
To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.
Claims (1)
1. a moment measuring device, it is characterized in that, comprise worm screw and be mated the sensing shaft of rotation, between worm screw and sensing shaft, bearing is installed, be provided with back-up ring between bearing and worm screw, this sensing shaft side is provided with sensing support, this support is provided with a foil gauge, this foil gauge can experience the distortion of sensing support, and signal is transferred to a detecting unit by an electric current bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420544081.7U CN204202790U (en) | 2014-09-20 | 2014-09-20 | Moment measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420544081.7U CN204202790U (en) | 2014-09-20 | 2014-09-20 | Moment measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204202790U true CN204202790U (en) | 2015-03-11 |
Family
ID=52660736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420544081.7U Expired - Fee Related CN204202790U (en) | 2014-09-20 | 2014-09-20 | Moment measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204202790U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588875A (en) * | 2017-08-29 | 2018-01-16 | 新安乃达驱动技术（上海）股份有限公司 | Foil gauge type torque sensor and motor |
-
2014
- 2014-09-20 CN CN201420544081.7U patent/CN204202790U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588875A (en) * | 2017-08-29 | 2018-01-16 | 新安乃达驱动技术（上海）股份有限公司 | Foil gauge type torque sensor and motor |
| CN107588875B (en) * | 2017-08-29 | 2023-05-23 | 安乃达驱动技术(上海)股份有限公司 | Strain gauge type moment sensor and motor |
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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: 20150311 Termination date: 20190920 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |