CN201583368U - Torque measuring device of electric actuator - Google Patents
Torque measuring device of electric actuator Download PDFInfo
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- CN201583368U CN201583368U CN2010200227366U CN201020022736U CN201583368U CN 201583368 U CN201583368 U CN 201583368U CN 2010200227366 U CN2010200227366 U CN 2010200227366U CN 201020022736 U CN201020022736 U CN 201020022736U CN 201583368 U CN201583368 U CN 201583368U
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Abstract
The utility model discloses a torque measuring device of an electric actuator, which comprises a voltage transformer, a current transformers, a power calculating unit and a torque calculating and calibrating unit, wherein the voltage transformer and the current transformer are connected with a motor, and the voltage transformer is used for collecting the voltage of each phase line of the mutual inductance motor; and the current transformer is used for collecting the current of each phase line of the motor, and the obtained voltage signals and current signals are processed by the power calculating unit and are calculated by the torque calibrating unit to be converted into the torque value of an actual output shaft. The utility model has simple installation, convenient measurement and accurate measurement results.
Description
Technical field
The utility model relates to a kind of torque measuring device, specifically a kind of torque measuring device of electric operator of the output torque when being used for measuring the actuator running.
Background technology
At present mostly be to adopt the method for mechanical pick-up device deformation to measure output torque in the torgue measurement of electric operator, the measurement of mechanical pick-up device deformation measured and changes into the data of output torque.Adopt mechanical deformation to test the method for output torque, and changing sensor wearing and tearing, aging can occur under the many situations of access times, cause the data-bias of measurement and inaccurate the having relatively high expectations of the processing of machinery, manufacturing, assembling.
Summary of the invention
Measure the problem of existence in order to overcome in the prior art mechanical pick-up device mode, the purpose of this utility model provides a kind of torque measuring device of electric operator, that this measurement mechanism is installed is simple, measure convenient and measurement result accurate.
The purpose of this utility model is achieved through the following technical solutions:
A kind of torque measuring device of electric operator, it is characterized in that: this measurement mechanism comprises voltage transformer (VT), current transformer, power calculation unit, the Calculating Torque during Rotary alignment unit, the voltage transformer (VT) summation current transformer all is connected with motor, voltage transformer (VT) is used for the voltage of each phase line of mutual inductance motor, and current transformer is used to gather the electric current of each phase line of motor; The voltage signal and the current signal that obtain are handled by power calculation unit, and calculate the moment values that converts actual output shaft to by the moment alignment unit.
With during motor is connected, the power lead of motor directly passes current transformer at current transformer.Power calculation unit and Calculating Torque during Rotary alignment unit are in the circuit board integrated.
The utility model adopts pure electronic circuit and processor to calculate and draws the output rotating torque, compare with traditional measuring method, and the utility model is installed simply, measurement is convenient and measurement result is accurate.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the experimental data figure that adopts the utility model to draw.
Fig. 3 is the derivation graph of the utility model Calculating Torque during Rotary part.
Embodiment
A kind of torque measuring device of electric operator, see Fig. 1, this measurement mechanism comprises voltage transformer (VT) 1, current transformer 2, power calculation unit 3, Calculating Torque during Rotary alignment unit 4, voltage transformer (VT) 1 summation current transformer 2 all is connected with motor 5, voltage transformer (VT) 1 is used for the voltage of each phase line of mutual inductance motor, and current transformer 2 is used to gather the electric current of each phase line of motor.Voltage signal that obtains and current signal are handled by power calculation unit 3, and calculate the moment values that converts actual output shaft to by moment alignment unit 4.
Sampling phase angle＜5 of 1 pair of voltage-phase of voltage transformer (VT) °, sampling ratio 1000: 1.Sampling phase angle＜5 of 2 pairs of phase line currents of current transformer °, sampling ratio 1000: 1.Power computation module adopts the ADE7753 of ADI company, and what Calculating Torque during Rotary adopted is the ATMEGA128 processor.
On the wiring board that voltage sample, power calculation unit 3 and Calculating Torque during Rotary alignment unit 4 are installed, the sampling section of electric current is that the power lead of motor directly passes current transformer, and current transformer is gathered current signal.
Principle of work of the present utility model is: obtain voltage signal by voltage transformer (VT) 1, obtain current signal by current transformer 2, output power when voltage signal and current signal obtain the running of motor actuator through power calculation unit 3, calculate the moment values that converts actual output shaft to by moment alignment unit 4 again, moment alignment unit 4 moments are derived as synoptic diagram 3, and computing method are as follows:
The rated moment of actuator is a, 1/4 place and rated moment place in rated moment, two places carry out moment and demarcate, the modulus value L and the H that demarcate are recorded in the Calculating Torque during Rotary alignment unit 4, in the torgue measurement process of reality, it is M that power calculation unit tests out actuator power modulus, and according to the model of synoptic diagram 3, the Calculating Torque during Rotary formula of deriving the pairing X of M place is: X=3a (M-L)/4 (H-L)+a/4.Calculating Torque during Rotary alignment unit 4 is realized the calculating of moment by this formula function.
By the test effect of reality, the experimental data that draws is seen Fig. 2.Show in the data, can reach 5% with interior precision the measurement of output shaft moment.
Claims (4)
1. the torque measuring device of an electric operator, it is characterized in that: this measurement mechanism comprises voltage transformer (VT) (1), current transformer (2), power calculation unit (3), Calculating Torque during Rotary alignment unit (4), voltage transformer (VT) (1) summation current transformer (2) all is connected with motor (5), voltage transformer (VT) (1) is used for the voltage of each phase line of mutual inductance motor, and current transformer (2) is used to gather the electric current of each phase line of motor; Voltage signal that obtains and current signal are handled by power calculation unit (3), and calculate the moment values that converts actual output shaft to by moment alignment unit (4).
2. the torque measuring device of electric operator according to claim 1 is characterized in that: with during motor (5) is connected, the power lead of motor directly passes current transformer (2) at current transformer (2).
3. the torque measuring device of electric operator according to claim 1, it is characterized in that: power calculation unit (3) and Calculating Torque during Rotary alignment unit (4) are in the circuit board integrated.
4. the torque measuring device of electric operator according to claim 1 is characterized in that: the ADE7753 of described power calculation unit (3) employing ADI company.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200227366U CN201583368U (en) | 2010-01-07 | 2010-01-07 | Torque measuring device of electric actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200227366U CN201583368U (en) | 2010-01-07 | 2010-01-07 | Torque measuring device of electric actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201583368U true CN201583368U (en) | 2010-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200227366U Expired - Lifetime CN201583368U (en) | 2010-01-07 | 2010-01-07 | Torque measuring device of electric actuator |
Country Status (1)
| Country | Link |
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| CN (1) | CN201583368U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032966A (en) * | 2010-11-09 | 2011-04-27 | 南京科远自动化集团股份有限公司 | Torque measuring device of electric executor using direct-current motor |
| CN102435364A (en) * | 2011-09-19 | 2012-05-02 | 上海理工大学 | Instantaneous energy-based soft sensing method of electric actuator torque |
| CN103592065A (en) * | 2013-10-08 | 2014-02-19 | 中国北车集团大连机车车辆有限公司 | Method for detecting instantaneous output torque of diesel engine |
| CN104316239A (en) * | 2014-10-13 | 2015-01-28 | 深圳市一诺仪表设备有限公司 | Electric head torque testing system |
| CN104614107A (en) * | 2015-01-12 | 2015-05-13 | 江苏金陵自控技术有限公司 | Full-electronic motor torque real-time detection circuit |
| CN105910739A (en) * | 2016-04-11 | 2016-08-31 | 苏州健雄职业技术学院 | Electric motor moment measuring system and method |
-
2010
- 2010-01-07 CN CN2010200227366U patent/CN201583368U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032966A (en) * | 2010-11-09 | 2011-04-27 | 南京科远自动化集团股份有限公司 | Torque measuring device of electric executor using direct-current motor |
| CN102435364A (en) * | 2011-09-19 | 2012-05-02 | 上海理工大学 | Instantaneous energy-based soft sensing method of electric actuator torque |
| CN102435364B (en) * | 2011-09-19 | 2013-10-30 | 上海理工大学 | Instantaneous energy-based soft sensing method of electric actuator torque |
| CN103592065A (en) * | 2013-10-08 | 2014-02-19 | 中国北车集团大连机车车辆有限公司 | Method for detecting instantaneous output torque of diesel engine |
| CN104316239A (en) * | 2014-10-13 | 2015-01-28 | 深圳市一诺仪表设备有限公司 | Electric head torque testing system |
| CN104614107A (en) * | 2015-01-12 | 2015-05-13 | 江苏金陵自控技术有限公司 | Full-electronic motor torque real-time detection circuit |
| CN104614107B (en) * | 2015-01-12 | 2017-12-12 | 江苏金陵自控技术有限公司 | A kind of full electronic motor torque real-time detection circuit |
| CN105910739A (en) * | 2016-04-11 | 2016-08-31 | 苏州健雄职业技术学院 | Electric motor moment measuring system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100915 |