CN2914049Y - Intelligentized torque control unit sleeve sensor of valve motor - Google Patents
Intelligentized torque control unit sleeve sensor of valve motor Download PDFInfo
- Publication number
- CN2914049Y CN2914049Y CN 200620116985 CN200620116985U CN2914049Y CN 2914049 Y CN2914049 Y CN 2914049Y CN 200620116985 CN200620116985 CN 200620116985 CN 200620116985 U CN200620116985 U CN 200620116985U CN 2914049 Y CN2914049 Y CN 2914049Y
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- gear
- worm
- electric device
- torque
- worm screw
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- Indication Of The Valve Opening Or Closing Status (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model relates to a torque control assembly sensor for an intelligent valve electric device. A worm pole is driven by an electric motor through gear for rotation and an output shaft is driven by a worm wheel for rotation. The reaction force of the worm wheel to the worm pole is beard by the spring on the worm pole, which is designed to a structure moving along the axial direction and is provided with a round rack. The axial direction movement of the worm pole could drive a gear for rotation. A regulation resistance is equipped on the gear shaft. And the regulation resistance change could stand for the value of output shaft torque. Through electric connection, transform the regulation resistance change into voltage change and send to artificial circuit, then send the digital signal to control plate through converting circuit. A microcontroller on the control plate could make out proper control decision according to the signal and control the operation of valve electric device. Because the regulation resistance is installed inside the electrical assembly box with convenient dismantling and could purchased on the market, the utility model has the advantages of convenient repair, proper price and easy implementation.
Description
The utility model relates to the output torque controling mechanism on the electric device for valve, in particular for the cover of the torque control part on intelligent electric device for valve sensor.
In electric device for valve, need an output torque control assembly, it mainly acts on is exerting oneself of by-pass valve control electric device, makes it not work the numerical value that surpasses regulation, can therefore not damage to guarantee valve.In traditional electric device for valve, when surpassing the regulation torque, it mainly is microswitch of axial float cut-out by mechanical component, and then the power supply of switching motor reaches the purpose of controlling torque, and in intelligent electric device for valve, a torque sensor must be arranged,, can carry out suitable control to the output torque in order to control circuit so that can represent the output torque with electric signal.
Present existing technology has following several:
1. utilize the revolutional slip of motor to measure electric device for valve output torque, electric machine structure as shown in Figure 1.
When motor moves, increase along with load, the revolutional slip of motor will increase, can obtain the interchange secondary current of the frequency identical with motor speed by a coil of motor rear portion increase, thereby measure the actual speed of motor, can obtain revolutional slip with the synchronous rotational speed comparison, thereby obtain the load of motor indirectly.Because the relation between revolutional slip and the motor load is non-linear, and the relation between motor load and the output torque influenced by machinery driving efficiency bigger, so the measuring accuracy of this method is relatively poor, seldom employing at present.
2. a force transducer is installed, as shown in Figure 2 in electric device for valve.
Motor drives worm screw by gear drive and rotates, and by the rotation of worm gear drives output shaft, worm gear is born by the force transducer that is connected on the worm screw the thrust of worm screw then, and the stressed and output torque of this sensor is directly proportional, and is not subjected to influencing of machinery driving efficiency.The output torque precision that this scheme is measured is higher, and shortcoming is that cost is higher, and force transducer must customize, can't buy on the market, and installation site dismounting inconvenience, repair relatively difficulty during fault.
3. in electric device for valve, use an absolute encoder, as shown in Figure 3.
Motor drives the worm screw rotation then by the rotation of worm gear drives output shaft by gear drive, and worm gear is born by the spring that is connected on the worm screw the reacting force of worm screw, and worm screw is designed to move axially structure.Under the effect of spring, the amount of movement of worm screw is directly proportional with the suffered axial reaction force of worm screw, thereby also just be directly proportional with the output torque, be not subjected to influencing of machinery driving efficiency, moving axially by a lever machinery of bar drives an absolute encoder, and the numeral of this coding output can be represented the output torque numerical value, and the output torque precision that this scheme is measured is higher, but the absolute encoder price is higher, thereby has limited the use of this method.
The purpose of this invention is to provide the sensor that a kind of intelligent electric device for valve torque control part is applied mechanically, this sensor enable the measuring accuracy that can provide enough, and make easy to maintenancely, price is lower.
In the torque control part cover of intelligent electric device for valve, use the high precision potentiometer as sensor.Motor drives worm screw by gear drive and rotates, then by the rotation of worm gear drives output shaft, worm gear is born by the spring that is connected on the worm screw the reacting force of worm screw, worm screw is designed to axially movable structure, a rack circle is arranged on worm screw, can drive a gear when worm screw moves axially and rotate, a precision resistor is installed on gear shaft, the variation of potentiometer resistance can be represented the numerical value of output shaft torque.Pass through electrical wiring, potentiometer resistance is become change in voltage be sent to analogue circuit, send into control panel through becoming digital signal after the conversion, the microcontroller on the control panel just can be made suitable control decision, the operation of by-pass valve control electric device with the number of it is believed that.
Signal transmits in the following manner, and electric device output torque → worm screw axial force → worm screw axial force moves → the potentiometer corner → simulate voltage signal → digital signal.
Basically be linear, and not influenced by extraneous factor that so the digital signal that obtains at last can truly reflect electric device output torque, and precision is better, can meet the demands in this signal transduction process.
Below in conjunction with accompanying drawing the intelligent electric device for valve torque of the utility model control part cover sensor is described further.
Fig. 1 is that commercially available electric device for valve utilizes the revolutional slip of motor to measure electric device for valve output torque control assembly synoptic diagram.
Fig. 2 is the structural representation that a force transducer has been installed in the commercially available electric device for valve.
Fig. 3 is the commercially available synoptic diagram that uses an absolute encoder in electric device for valve.
Label among Fig. 1, Fig. 2, Fig. 3 is: 1, coil 2, stator 3, rotor 4, motor 5, gear driving pair 6, output shaft 7, worm gear 8, worm screw 9, force transducer 10, motor 11, worm gear 12, worm screw 13, output shaft 14, absolute encoder 15, lever 16, spring.
Fig. 4 is the synoptic diagram of the intelligent electric device for valve torque of the utility model control part cover sensor.
Fig. 5 is the circuit diagram of the intelligent electric device for valve torque of the utility model control part cover sensor.
Label among Fig. 4 is:
1, motor 2, gear 3, worm screw 4, worm gear 5, output shaft 6, rack circle 7, potentiometer 8, spring.
Label among Fig. 5 is:
7, potentiometer 9, mimic channel 10, change-over circuit 11, microcontroller 12, control panel.
In Fig. 4 and embodiment shown in Figure 5, motor (1) drives worm screw (3) by gear (2) transmission and rotates, drive output shaft (5) rotation by worm gear (4) then, worm gear (4) is born by the spring (8) that is connected on the worm screw (3) the reacting force of worm screw (3), worm screw (3) is designed to axially movable structure, a rack circle (6) is arranged on worm screw (3), worm screw (3) can drive a gear and rotate when moving axially, a potentiometer (7) is installed on gear shaft, and potentiometer (7) changes in resistance can be represented the numerical value of output shaft (6) torque.Pass through electrical wiring, potentiometer (7) resistance variations is become change in voltage be sent to analogue circuit (9), send into control panel (12) through becoming digital signal behind the change-over circuit (10), microcontroller (11) on the control panel (12) just can be made suitable control decision, the operation of by-pass valve control electric device with the number of it is believed that.
Because in the potentiometer mounting electrical fitting case, convenient disassembly and can buying from the city, so Keep in repair more conveniently, moderate cost is convenient to the advantages such as enforcement.
Claims (2)
1, the intelligent electric device for valve torque of a kind of utility model control part cover sensor, mainly by motor (1), gear (2), worm screw (3), worm gear (4), output shaft (5), form, it is characterized in that: on worm screw (3), be provided with a rack circle (6), the one end contacts with gear on user's Denso, be provided with potentiometer (7) on gear shaft, the changes in resistance of potentiometer (7) can be represented the numerical value of output shaft (6) torque.
2, intelligent electric device for valve torque control part cover sensor according to claim 1, it is characterized in that: potentiometer (7) resistance variations becomes change in voltage and is sent to analogue circuit (9), send into control panel (12) through becoming digital signal behind the change-over circuit (10), the microcontroller (11) on the control panel (12) just can be made suitable control decision with the number of it is believed that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620116985 CN2914049Y (en) | 2006-05-22 | 2006-05-22 | Intelligentized torque control unit sleeve sensor of valve motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620116985 CN2914049Y (en) | 2006-05-22 | 2006-05-22 | Intelligentized torque control unit sleeve sensor of valve motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2914049Y true CN2914049Y (en) | 2007-06-20 |
Family
ID=38168649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620116985 Expired - Fee Related CN2914049Y (en) | 2006-05-22 | 2006-05-22 | Intelligentized torque control unit sleeve sensor of valve motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2914049Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109397A (en) * | 2010-12-15 | 2011-06-29 | 天津埃柯特阀门控制设备有限公司 | Dynamic detecting device of torque of electric actuating mechanism |
| CN102507088A (en) * | 2011-10-24 | 2012-06-20 | 北京航天计量测试技术研究所 | Device for driving torquer stator to rotate around center |
| CN106959179A (en) * | 2017-04-01 | 2017-07-18 | 应后民 | A kind of mechanical electromechanical assembly for being connected to outside rotate element |
| CN113341795A (en) * | 2021-05-21 | 2021-09-03 | 超达阀门集团股份有限公司 | Remote monitoring and early warning system for chemical valve faults |
| CN115790926A (en) * | 2022-12-01 | 2023-03-14 | 华中科技大学 | Torque measuring method and device of motor unit |
-
2006
- 2006-05-22 CN CN 200620116985 patent/CN2914049Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109397A (en) * | 2010-12-15 | 2011-06-29 | 天津埃柯特阀门控制设备有限公司 | Dynamic detecting device of torque of electric actuating mechanism |
| CN102507088A (en) * | 2011-10-24 | 2012-06-20 | 北京航天计量测试技术研究所 | Device for driving torquer stator to rotate around center |
| CN106959179A (en) * | 2017-04-01 | 2017-07-18 | 应后民 | A kind of mechanical electromechanical assembly for being connected to outside rotate element |
| CN113341795A (en) * | 2021-05-21 | 2021-09-03 | 超达阀门集团股份有限公司 | Remote monitoring and early warning system for chemical valve faults |
| CN115790926A (en) * | 2022-12-01 | 2023-03-14 | 华中科技大学 | Torque measuring method and device of motor unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070620 Termination date: 20100522 |