CN109000840A - Rotary system stalling torque measuring device and its measurement method - Google Patents
Rotary system stalling torque measuring device and its measurement method Download PDFInfo
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- CN109000840A CN109000840A CN201810660063.8A CN201810660063A CN109000840A CN 109000840 A CN109000840 A CN 109000840A CN 201810660063 A CN201810660063 A CN 201810660063A CN 109000840 A CN109000840 A CN 109000840A
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- rotary system
- torque
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- stalling
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a kind of rotary system stalling torque measuring devices, comprising: driving mechanism, torque transmission mechanism, position-limit mechanism and torgue measurement mechanism；Driving mechanism drives measured rotary system to rotate to designated position by torque transmission mechanism, position-limit mechanism limits driving mechanism after reaching designated position, in a variety of different current values of preset period of time output until the measured rotary system rotation of load current value driving, is measured rotary system and is passed on stalling torque to torgue measurement mechanism by torque transmission mechanism behind arrival designated position.The present invention also provides a kind of rotary system stalling torque measurement methods.Measuring device and measuring method of the present invention are avoided that rotary system stalling torque measurement inaccuracy caused by torque overshoot, improve rotary system stalling torque measurement accuracy, and then improve rotary system product stability.
Description
Technical field
The present invention relates to automotive fields, more particularly to a kind of automotive field rotary system stalling torque measuring device.This
Invention further relates to a kind of rotary system stalling torque measurement method for automotive field.
Background technique
Rotary system is widely used in automotive field, such as: motor, gearbox, engine etc..For rotation class system/set
Standby stalling torque belongs to its key index, and 100% detection is generally required in Product Validation.By taking general actuator (GPA) as an example,
The general actuator of turbocharger is assemblied in for controlling turbocharger exhaust gas bypass threshold switch, acting on is to maintain turbine
Air pressure constant in booster, extra off-gas flows can be made by the exhaust gas bypass valve regulation relief valve that general actuator controls
These air-flows are obtained without going past turbine.It is just adjustable the rotation speed of turbine in this way, and then adjusts admission pressure.
Existing general actuator stalling torque measurement is in the following ways: servo motor is by general actuator driven to machinery
Bottom dead center position, servo motor drive general actuator to turn over predetermined angle, such as 22.05 ゜ (clockwise), brake locking servo
Motor.0.95A electric current (rotating clockwise) is provided to general actuator with constant-current source, sensor measures general actuator and is located at this
The stall torque of position, constant-current source power-off, brake are unclamped.Servo motor continues that product is driven to turn over predetermined angle, such as 22.05
゜ (clockwise) successively measures the stall torque of 3 measurement stall points.The stall torque for the 3 measurement stall points measured is asked
Average value, average value is as final stalling torque measurement result.
The deficiency of existing rotary system measurement method is measurement inaccuracy caused by torque overshoot.As shown in Figure 1, measuring
In the process, directly to product plus 0.95A rated current, the stalling torque measurement result curve of product will appear overshoot phenomenon, mistake
Punching needs to overcome moment of friction when will lead to the rebound of torque sensor foil gauge, and then causes measurement result bigger than actual value, shadow
It rings result accuracy and then influences product stability.
Summary of the invention
The technical problem to be solved in the present invention is to provide one kind to be avoided that torque overshoot causes rotary system stalling torque to survey
Measure the rotary system stalling torque measuring device of inaccuracy.
The present invention also provides a kind of rotations for being avoided that torque overshoot and causing rotary system stalling torque measurement inaccuracy
System stalling torque measurement method.
The present invention provides a kind of rotary system stalling torque measuring device to solve above-mentioned technical problem, comprising: driving machine
Structure, torque transmission mechanism, position-limit mechanism and torgue measurement mechanism；Driving mechanism is driven by torque transmission mechanism and is measured rotation
System is rotated to designated position, and position-limit mechanism limits driving mechanism after reaching designated position, is reached behind designated position when default
The a variety of different current values of section output are measured rotary system rotation until load current value drives, and measured rotary system passes through power
Square transmission mechanism passes on stalling torque to torgue measurement mechanism.
It is further improved the rotary system stalling torque measuring device, preset period of time is according to the number of species of current value
Multiple equal time intervals are divided into, each time interval exports a kind of measured rotary system of current value driving.
It is further improved the rotary system stalling torque measuring device, a variety of different current values form incremental
Arithmetic progression.
It is further improved the rotary system stalling torque measuring device, exports at least ten kinds of different current value drivings
It is measured rotary system.
It is further improved the rotary system stalling torque measuring device, the measured rotary system is for controlling
The general actuator of turbocharger exhaust gas by-pass valve.
The present invention provides a kind of rotary system stalling torque measurement method, comprising the following steps:
Torque transmission mechanism is connect with measured rotary system, driving mechanism driving moment transmission mechanism makes to be measured rotation
Transfer from one department to another system rotation to designated position, limits driving mechanism, driving mechanism stops driving moment transmission mechanism；
It is measured rotary system selection until load current value drives in a variety of different current values of preset period of time output, is passed through
The measurement of torgue measurement mechanism obtains this and is measured rotary system designated position stalling torque.
It is further improved the rotary system stalling torque measurement method, the preset period of time is according to the type of current value
Quantity is divided into multiple equal time intervals, and each time interval exports a kind of measured rotary system of current value driving.
It is further improved the rotary system stalling torque measurement method, at least measures the stifled of 3 different designated positions
Torque calculates stall power stalling torque of the average value for obtaining 3 different designated positions stalling torques as the rotary system
Measurement result.
It is further improved the rotary system stalling torque measurement method, a variety of different current values form incremental
Arithmetic progression.
It is further improved the rotary system stalling torque measurement method, it is at least ten kinds of not in preset period of time output
Same current value driving is measured rotation system.
Due to there is such as relevant physical relation of following forward directions in rotary system stalling torque measurement process, so will lead to
Torque overshoot condition occurs.
Wherein I indicate that current of electric, T indicate motor output torque, Kt indicates that motor characteristic constant, Φ are motor a pair of magnetic
The magnetic flux of pole, a indicate motor acceleration, and I indicates that rotor rotary inertia, Vt indicate maximum speed after motor acceleration, and S is indicated
Acceleration distance, F indicate motor force, and t indicates contact buffer time, and E indicates torque sensor elasticity modulus, r expression effect
The operating radius of power, ε indicate the strain of torque sensor foil gauge.The present invention is obtained by above-mentioned positive physical relationship analysis to be continued
Rated current necessarily affect torque, lasting rated current is the main reason for forming torque sensor strain overshoot.
The present invention is in rotary system stalling torque measurement process, and control driving mechanism (motor) electric current is stepped up, directly
To being loaded onto rated current, it is contemplated that productive temp problem may finally optimize according to experimental result and decrease or increase step number.This
Invention controls electric current in stalling torque time of measuring and continuously rises to rated current, time and electric current as adjustable value, reality
Installation warrants actual experiment result.Using the method for time control and current control, time and electric current are increased stepwise two are formed
Dimension relationship is stepped up stalling torque, and lasting rated current is avoided to form torque sensor strain overshoot, and then obtain
Repeat the better final measurement of consistency.The present invention can solve torque overshoot in rotary system stalling torque measurement process and make
At the problem of measurement result inaccuracy, keep torgue measurement result more acurrate, improves product stability.
Detailed description of the invention
Present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:
Fig. 1 is the general actuator torgue measurement effect diagram of existing method, shows current curve and M curve
Correlation.
Fig. 2 is the schematic diagram of general one embodiment of actuator stall measurement structure of the present invention.
Fig. 3 is the flow diagram of measurement method of the present invention.
Fig. 4 is that the present invention provides the actual measurement effect diagram of general actuator embodiment, shows time and electric current
The formed M curve of two-dimentional relation interaction, ordinate are time (second), and abscissa is electric current (peace).
Description of symbols
A is M curve
B is current curve
D is the M curve of the 1st point in 3 measurement stall points
E is the M curve of the 2nd point in 3 measurement stall points
F is the M curve of the 3rd point in 3 measurement stall points
1 is servo motor
2 be brake
3 be torque sensor
4 be shaft coupling
5 be shaft coupling
6 be general actuator
Specific embodiment
The present invention provides a kind of one embodiment of rotary system stalling torque measuring device, comprising: driving mechanism, torque transmitting
Mechanism, position-limit mechanism and torgue measurement mechanism；Driving mechanism by torque transmission mechanism drive be measured rotary system rotate to
Designated position, position-limit mechanism limits driving mechanism after reaching designated position, exports behind arrival designated position in preset period of time a variety of
Different current values are measured rotary system rotation until load current value drives, and measured rotary system passes through torque transmission mechanism
Stalling torque is passed on to torgue measurement mechanism.For example, output is from small to large until a variety of current values of load current value drive
It is measured rotary system rotation.
By taking the general actuator for controlling turbocharger exhaust gas by-pass valve carries out stalling torque measurement as an example, it is measured
Rotary system is general actuator, and driving mechanism is servo motor, and torque transmission mechanism is shaft coupling and shaft coupling, and position-limit mechanism is
Brake, torgue measurement mechanism is torque sensor.
General actuator driven to mechanical bottom dead center position, servo motor are driven general actuator to turn over by servo motor
22.05 ゜ (clockwise), brake locking servo motor.Refering to what is shown in Fig. 4, giving general execution with constant-current source interval same time period
Device provide 1#~10# electric current, current value be divided into 0.1A, 0.2A, 0.3A, 0.4A, 0.5A, 0.6A, 0.7A, 0.8A, 0.9A,
0.95A electric current (rotates clockwise), and wherein 0.95A is the rated current of measurement setup, and the present embodiment 1#-9# electric current forms equal difference
Ordered series of numbers does not form arithmetic progression with 10# electric current (rated current), and corresponding each electric current can flexibly be set.
Sensor measures the stall torque that general actuator is located at the position, constant-current source power-off, and brake is unclamped.Servo motor
Continue that product is driven to turn over 22.05 ゜ (clockwise).The stall torque that 3 measurement stall points are successively measured by the above process, to survey
The stall torque value of 3 measurement stall points is averaging out, and average value is as final stalling torque measurement result.
As shown in figure 3, the present invention provides a kind of rotary system stalling torque measurement method, comprising the following steps:
Torque transmission mechanism is connect with measured rotary system, driving mechanism driving moment transmission mechanism makes to be measured rotation
Transfer from one department to another system rotation to designated position, limits driving mechanism, driving mechanism stops driving moment transmission mechanism；
It is measured rotation system in a variety of different current value drivings of preset period of time output, is measured and is obtained by torgue measurement mechanism
It is designated position stalling torque that this, which is measured rotation,.The preset period of time is divided into multiple phases according to the number of species of current value
Deng time interval, each time interval, which exports a kind of current value and drives, is measured rotary system.
For example, driving driving mechanism at least ten kinds of different current values of preset period of time output, then preset period of time is divided into
10 equal time intervals, each time interval export a kind of current value extremely measured rotary system rotation of driving, wherein institute
It states 10 kinds of different current values and forms incremental arithmetic progression, the stalling torque of 3 different designated positions is at least measured, calculating obtains
The average value of 3 different designated positions stalling torques is obtained as final stalling torque measurement result.
Using the measurement of general actuator stalling torque as embodiment, servo motor will stop under general actuator driven to machinery
Point position, servo motor drive general actuator to turn over 22.05 ゜ (clockwise), brake locking servo motor.With constant-current source interval
Same time period (such as 0.1 second) to general actuator provide 1#~10# electric current, current value be divided into 0.1A, 0.2A, 0.3A,
0.4A, 0.5A, 0.6A, 0.7A, 0.8A, 0.9A, 1.0A electric current (rotate clockwise) sensor and measure general actuator positioned at this
The stall torque of position, constant-current source power-off, brake are unclamped.Servo motor continues that product is driven to turn over 22.05 ゜ (clockwise), presses
The above process successively measures the stall torque of 3 measurement stall points.The stall torque for measuring 3 measurement stall points is averaging,
Average value is as final stalling torque measurement result.
Shown in Fig. 4, the stall torque actual measurement effect diagram of 3 points of the embodiment of the present invention, the actual measurement time and
Interaction Law of Electric Current, which is formed by M curve, can clearly show that the M curve of this 3 measurement stall points is more gentle
Linearly, do not occur overshooting due to torque, and then avoid torque overshoot and cause rotary system stalling torque measurement inaccuracy
Problem.
Above by specific embodiment and embodiment, invention is explained in detail, but these are not composition pair
Limitation of the invention.Without departing from the principles of the present invention, those skilled in the art can also make many deformations and change
Into these also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of rotary system stalling torque measuring device, comprising: driving mechanism, torque transmission mechanism, position-limit mechanism and torque
Measuring mechanism；Driving mechanism drives measured rotary system to rotate to designated position by torque transmission mechanism, reaches specific bit
Postpone position-limit mechanism limit driving mechanism, it is characterised in that: in a variety of different electric currents of preset period of time output behind arrival designated position
Value is measured rotary system rotation up to load current value drives, and is measured rotary system and passes through torque transmission mechanism for stall power
Square is passed on to torgue measurement mechanism.
2. rotary system stalling torque measuring device as described in claim 1, it is characterised in that: preset period of time is according to current value
Number of species be divided into multiple equal time intervals, each time interval exports a kind of current value driving and is measured rotation
System.
3. rotary system stalling torque measuring device as claimed in claim 2, it is characterised in that: a variety of different electric currents
Value, which is formed, is incremented by arithmetic progression.
4. rotary system stalling torque measuring device as claimed in claim 2, it is characterised in that: output is at least ten kinds of different
Current value, which drives, is measured rotary system.
5. the rotary system stalling torque measuring device as described in claim 1-4 any one, it is characterised in that: described tested
Measuring rotary system is the general actuator for controlling turbocharger exhaust gas by-pass valve.
6. a kind of utilize the rotary system stalling torque measurement side for being measured rotary system described in claim 1-4 any one
Method, which comprises the following steps:
Torque transmission mechanism is connect with measured rotary system, driving mechanism driving moment transmission mechanism makes to be measured rotation system
System rotation limits driving mechanism, driving mechanism stops driving moment transmission mechanism to designated position；
In a variety of different current values of preset period of time output until load current value driving is measured the rotation of rotation system, surveyed by torque
Measuring mechanism measurement, which obtains, is measured the rotary system designated position stalling torque.
7. rotary system stalling torque measurement method as claimed in claim 6, it is characterised in that:
The preset period of time is divided into multiple equal time intervals according to the number of species of current value, and each time interval is defeated
A kind of current value, which drives, out is measured rotary system.
8. rotary system stalling torque measurement method as claimed in claim 6, it is characterised in that: at least measure 3 differences and refer to
The stalling torque set is positioned, calculates the average value for obtaining 3 different designated positions stalling torques as the rotary system stall power
Square measurement result.
9. rotary system stalling torque measurement method as claimed in claim 7, it is characterised in that: a variety of different electric currents
Value, which is formed, is incremented by arithmetic progression.
10. rotary system stalling torque measurement method as claimed in claim 7, it is characterised in that: defeated in the preset period of time
At least ten kinds of different current value drivings are measured rotation system out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810660063.8A CN109000840A (en) | 2018-06-25 | 2018-06-25 | Rotary system stalling torque measuring device and its measurement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810660063.8A CN109000840A (en) | 2018-06-25 | 2018-06-25 | Rotary system stalling torque measuring device and its measurement method |
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| CN109000840A true CN109000840A (en) | 2018-12-14 |
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| CN201810660063.8A Pending CN109000840A (en) | 2018-06-25 | 2018-06-25 | Rotary system stalling torque measuring device and its measurement method |
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Citations (8)
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| CN101487752A (en) * | 2009-02-19 | 2009-07-22 | 中华人民共和国金华出入境检验检疫局 | Testing bench for stalling torque of electric tool |
| CN201611291U (en) * | 2009-12-31 | 2010-10-20 | 济南金钟电子衡器股份有限公司 | Stalling torque test device of permanent magnetic synchronous motor |
| CN101966866A (en) * | 2010-10-20 | 2011-02-09 | 上海电器科学研究所（集团）有限公司 | Automatic ship mooring machine and mooring rope tension setting method |
| CN103746626A (en) * | 2013-11-20 | 2014-04-23 | 广东威灵电机制造有限公司 | Locked rotor detection method and apparatus of motor control, and motor driver |
| CN103840432A (en) * | 2014-03-24 | 2014-06-04 | 北京经纬恒润科技有限公司 | Motor stalling detection method and system |
| CN204439260U (en) * | 2015-01-20 | 2015-07-01 | 宁波菲仕电机技术有限公司 | A kind of stall torsion-testing apparatus |
| CN105136451A (en) * | 2015-08-28 | 2015-12-09 | 深圳市浚海仪表设备有限公司 | Method and system for detecting quality of electric head |
| CN206593790U (en) * | 2017-03-03 | 2017-10-27 | 中国电子科技集团公司第二十一研究所 | The two-way stalling torque test device of micro machine |
-
2018
- 2018-06-25 CN CN201810660063.8A patent/CN109000840A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101487752A (en) * | 2009-02-19 | 2009-07-22 | 中华人民共和国金华出入境检验检疫局 | Testing bench for stalling torque of electric tool |
| CN201611291U (en) * | 2009-12-31 | 2010-10-20 | 济南金钟电子衡器股份有限公司 | Stalling torque test device of permanent magnetic synchronous motor |
| CN101966866A (en) * | 2010-10-20 | 2011-02-09 | 上海电器科学研究所（集团）有限公司 | Automatic ship mooring machine and mooring rope tension setting method |
| CN103746626A (en) * | 2013-11-20 | 2014-04-23 | 广东威灵电机制造有限公司 | Locked rotor detection method and apparatus of motor control, and motor driver |
| CN103840432A (en) * | 2014-03-24 | 2014-06-04 | 北京经纬恒润科技有限公司 | Motor stalling detection method and system |
| CN204439260U (en) * | 2015-01-20 | 2015-07-01 | 宁波菲仕电机技术有限公司 | A kind of stall torsion-testing apparatus |
| CN105136451A (en) * | 2015-08-28 | 2015-12-09 | 深圳市浚海仪表设备有限公司 | Method and system for detecting quality of electric head |
| CN206593790U (en) * | 2017-03-03 | 2017-10-27 | 中国电子科技集团公司第二十一研究所 | The two-way stalling torque test device of micro machine |
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Application publication date: 20181214 |