CN102928779A - Method and device for testing mechanical property of motor - Google Patents
Method and device for testing mechanical property of motor Download PDFInfo
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- CN102928779A CN102928779A CN2012104095800A CN201210409580A CN102928779A CN 102928779 A CN102928779 A CN 102928779A CN 2012104095800 A CN2012104095800 A CN 2012104095800A CN 201210409580 A CN201210409580 A CN 201210409580A CN 102928779 A CN102928779 A CN 102928779A
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Abstract
The invention discloses a method and a device for testing mechanical performance of a motor. A rotation shaft of the motor to be tested is in mechanical connection with a rotation shaft of a load motor which is used as a generator, an electricity output end of the load motor is used as a power supply and is connected to a power supply connection end of a box body of a load test box into which a load resistor is filled to ensure that the load resistor in the load test box can be used as load of the load motor, then the motor to be tested is electrified to ensure that the motor to be tested runs to drive the load motor to run to generate power, and then the load power of the load motor is changed in one test cycle in a mode of adjusting the load resistor, so that the aim of testing the mechanical performance of the motor to be tested can be fulfilled. The device for testing the mechanical performance of the motor has the advantages of simple structure, high test accuracy and efficiency, convenience in using, high automation degree, high work stability, low requirement on the technical level of operators and the like.
Description
Technical field
The present invention relates to a kind of electromechanics performance test method and device, belong to the electromechanics technical field of performance test.
Background technology
At present, when the mechanical property of motor is carried out test evaluation, often by to applied different loading moment modes by the rotating shaft of measured motor, then by observing by measured motor under the effect of different moments, the transformation of speed situation of its rotating shaft is estimated by mechanical propertys such as the no-load characteristic of measured motor, load characteristic, mechanical property, dynamic perfromances.In the prior art, often adopt the mode of machinery to come being applied moment by the rotating shaft of measured motor, be 201010228879.7 such as the disclosed application number of Chinese patent literature, denomination of invention is the technical scheme of " testing device for mechanical property parameters of modularized permanent magnet synchronous servo motor ", a kind of exactly mode by mechanical braking is come tested machine shaft is applied braking moment, thereby when the load, the mode of this employing machinery is come the mode that is applied moment by the rotating shaft of measured motor is mainly existed the proving installation complex structure by measured motor in simulation, cost is higher, the test operation trouble, measuring accuracy is low and testing efficiency is lower, and the test duration is difficult for the shortcomings such as grasp.Therefore, the mode of existing electromechanics performance test still can not satisfy the needs of actual use.
Summary of the invention
The object of the invention is: provide a kind of simple in structure, measuring accuracy is higher, easy to use, testing efficiency is high electromechanics performance test method and device, to overcome the deficiencies in the prior art.
The present invention is achieved in that a kind of electromechanics performance test method of the present invention is, the method will be connected with the rotating shaft of the load motor of using as generator by the mode of the rotating shaft of measured motor by mechanical connection, the electric output terminal of load motor is connected to as power supply on the power connector end on the casing of a load test case that pull-up resistor is housed, make pull-up resistor in the load test case as the load of load motor, then to tested electrical power, make tested electric machine rotation and drive load motor running generating, then the mode by regulating load resistance changes the bearing power of load motor in a test period, can change the moment that acts on the tested machine shaft by the mode that changes bearing power like this, in test process, observe by the rotation speed change situation of measured motor by tachometer gage simultaneously, can reach the purpose of the tested electromechanics performance of test according to its rotation speed change situation.
In the above-mentioned electromechanics performance test method, when in a test period, bearing power being changed, the bearing power that mode by regulating load resistance makes load motor is increased to 2.5 kilowatts be increased to 1.5 kilowatts by 1 kilowatt of beginning in a test period after again, and the time that makes a test period is 120 seconds, in a test period of 120 seconds, its bearing power is 1 kilowatt time to be 100 seconds, to be time of 1.5 kilowatts to be 18 seconds, to be that time of 2.5 kilowatts is 2 seconds.
In above-mentioned electromechanics performance test method, each is 3～8 test periods by the test duration of measured motor.
Of the present invention a kind of electromechanics performance test device according to the said method structure, comprise the load test box body, circuit board is housed in casing, at circuit board rectification circuit and load circuit are installed, load circuit is the first pull-up resistor by 3 pull-up resistors, the second pull-up resistor and the 3rd pull-up resistor form, the first pull-up resistor, one end of the second pull-up resistor and the 3rd pull-up resistor is connected the first pull-up resistor with an end of the DC output end of rectification circuit, the other end of the second pull-up resistor and the 3rd pull-up resistor is connected respectively and is connect the other end of the DC output end of rectification circuit behind the on-off circuit.
Said switching circuit is comprised of field effect transistor, pulse width modulation circuit and time control circuit, the signal input part of the control signal output termination pulse width modulation circuit of time control circuit, the grid of the control signal output termination field effect transistor of pulse width modulation circuit, the source electrode of field effect transistor connects an end of the DC output end of rectification circuit by pull-up resistor, the drain electrode of field effect transistor connects the other end of the DC output end of rectification circuit.
Owing to having adopted technique scheme, the present invention uses tested motor direct-drive as generator load motor, and by the mode of regulating load resistance the bearing power of load motor is changed in a test period, can change the moment that acts on the tested machine shaft by the mode that changes bearing power like this, simultaneously in the situation that observe by the situation of change of measured motor at its rotating speed of load variations by tachometer gage in the test process, then according to its rotation speed change situation whether in the scope of permitting, can judge by the mechanical property of measured motor whether meet the requirements.Because load of the present invention increases or changes all pre-set and automatically finish, be maloperation or the impact of lacking experience so can get rid of the people fully, its measuring accuracy reaches the requirement of use fully, and its operating accuracy can thereby not change because of the former of operator, and job stability is very high.So, the present invention compared with prior art, that the present invention not only has advantages of is simple in structure, measuring accuracy and testing efficiency are all high, but also have easy to use, automaticity is high, good operating stability, operator's technical merit is required the advantages such as lower.Simultaneously, adopt the present invention will improve greatly the security of product in process of the test, will reduce significantly laboratory technician's labour intensity, and production efficiency and the product quality of the whole motor product of energy Effective Raise.
Description of drawings
Structural principle schematic diagram when Fig. 1 tests for use apparatus of the present invention;
The circuit theory diagrams of Fig. 2 apparatus of the present invention.
Description of symbols in the accompanying drawing: 1-is by measured motor, 2-load motor, 3-tachometer gage, 4-casing, 5-rectification circuit, 6-on-off circuit, 7-shaft coupling, R1-the first pull-up resistor, R2-the second pull-up resistor, R3-the 3rd pull-up resistor, K-field effect transistor, PWM-pulse width modulation circuit, TC-time control circuit.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
Embodiments of the invention: a kind of electromechanics performance test method of the present invention is to be connected with the rotating shaft of the load motor 2 of using as generator by the mode of the rotating shaft of measured motor 1 by mechanical connection, adopt in the present embodiment traditional shaft coupling 7 to be connected (as shown in Figure 1) with load motor 2 by measured motor 1, then the electric output terminal of load motor is connected to as power supply on the power connector end on the casing 4 of a load test case that pull-up resistor is housed, make pull-up resistor in the load test case as the load (as shown in Figure 1) of load motor, then to being switched on by measured motor 1, make by measured motor 1 and rotate and drive load motor 2 running generatings, then the mode by regulating load resistance changes the bearing power of load motor 2 in a test period, can change the moment that acts on by in measured motor 1 rotating shaft by the mode that changes bearing power like this, simultaneously when test, with a traditional tachometer gage 3 routinely connected mode be connected to by (as shown in Figure 1) in the rotating shaft of measured motor 1, can in the process of test, observe by the rotation speed change situation of measured motor 1 by tachometer gage 3 like this, can reach test by the purpose of measured motor 1 mechanical property according to its rotation speed change situation, namely when pull-up resistor increases, do not changed by the rotating speed of measured motor 1 or variation range in the specialized range of existing standard, should be qualified by measured motor 1 then, otherwise be defective.When in a test period, bearing power being changed, the bearing power that mode by regulating load resistance makes load motor 2 is increased to 2.5 kilowatts be increased to 1.5 kilowatts by 1 kilowatt of beginning in a test period after again, and the time that makes a test period is 120 seconds, in a test period of 120 seconds, its bearing power is 1 kilowatt time to be 100 seconds, to be time of 1.5 kilowatts to be 18 seconds, to be that time of 2.5 kilowatts is 2 seconds; Each is to get final product 3～8 test periods by the test duration of measured motor 1.
The structural representation of the of the present invention a kind of electromechanics performance test device that makes up according to said method as depicted in figs. 1 and 2, this device comprises load test box body 4, in casing 4, circuit board is housed, at circuit board rectification circuit 5 and load circuit are installed, load circuit is the first pull-up resistor R1 by 3 pull-up resistors, the second pull-up resistor R2 and the 3rd pull-up resistor R3 form, the first pull-up resistor R1, the end of the second pull-up resistor R2 and the 3rd pull-up resistor R3 is connected the first pull-up resistor R1 with an end of the DC output end of rectification circuit 5, the other end of the second pull-up resistor R2 and the 3rd pull-up resistor R3 is connected respectively and is connect the other end (as shown in Figure 2) of the DC output end of rectification circuit 5 behind the on-off circuit 6; Its on-off circuit 6 is comprised of field effect transistor K, pulse width modulation circuit PWM and time control circuit TC, the control signal of time control circuit TC is exported the signal input part of termination pulse width modulation circuit PWM, the grid of the control signal output termination field effect transistor K of pulse width modulation circuit PWM, the source electrode of field effect transistor K connects an end of the DC output end of rectification circuit 5 by pull-up resistor, the drain electrode of field effect transistor K connect rectification circuit 5 DC output end the other end (as shown in Figure 2).
When using electromechanics performance test device of the present invention, only need with the rotating shaft of load motor 2 by shaft coupling 7 with is connected by the rotating shaft of measured motor 1, with the electrical input of rectification circuit 5 with can carry out test job to the startup of being switched on by measured motor 1 after the electric output terminal of load motor 2 is connected.
Claims (5)
1. electromechanics performance test method, its spy is being: will be connected by the rotating shaft of the mode of mechanical connection with the load motor of using as generator (2) by the rotating shaft of measured motor (1), the electric output terminal of load motor is connected to as power supply on the power connector end on the casing (4) of a load test case that pull-up resistor is housed, make pull-up resistor in the load test case as the load of load motor, then to being switched on by measured motor (1), make by measured motor (1) and rotate and drive load motor (2) running generating, then the mode by regulating load resistance changes the bearing power of load motor (2) in a test period, can change the moment that acts on by in measured motor (1) rotating shaft by the mode that changes bearing power like this, in test process, observe by the rotation speed change situation of measured motor (1) by tachometer gage (3) simultaneously, can reach test by the purpose of measured motor (1) mechanical property according to its rotation speed change situation.
2. electromechanics performance test method according to claim 1, it is characterized in that: when in a test period, bearing power being changed, the bearing power that mode by regulating load resistance makes load motor (2) is increased to 2.5 kilowatts be increased to 1.5 kilowatts by 1 kilowatt of beginning in a test period after again, and the time that makes a test period is 120 seconds, in a test period of 120 seconds, its bearing power is 1 kilowatt time to be 100 seconds, to be time of 1.5 kilowatts to be 18 seconds, to be that time of 2.5 kilowatts is 2 seconds.
3. electromechanics performance test method according to claim 1, it is characterized in that: each is 3～8 test periods by the test duration of measured motor (1).
4. electromechanics performance test device, comprise load test box body (4), it is characterized in that: in casing (4), circuit board is housed, at circuit board rectification circuit (5) and load circuit are installed, load circuit is the first pull-up resistor (R1) by 3 pull-up resistors, the second pull-up resistor (R2) and the 3rd pull-up resistor (R3) form, the first pull-up resistor (R1), one end of the second pull-up resistor (R2) and the 3rd pull-up resistor (R3) is connected the first pull-up resistor (R1) with an end of the DC output end of rectification circuit (5), the other end of the second pull-up resistor (R2) and the 3rd pull-up resistor (R3) is connected respectively and is connect the other end of the DC output end of rectification circuit (5) behind the on-off circuit (6).
5. electromechanics performance test device according to claim 4, it is characterized in that: on-off circuit (6) is by field effect transistor (K), pulse width modulation circuit (PWM) and time control circuit (TC) form, the signal input part of the control signal output termination pulse width modulation circuit (PWM) of time control circuit (TC), the grid of the control signal output termination field effect transistor (K) of pulse width modulation circuit (PWM), the source electrode of field effect transistor (K) connects an end of the DC output end of rectification circuit (5) by pull-up resistor, the drain electrode of field effect transistor (K) connects the other end of the DC output end of rectification circuit (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210409580.0A CN102928779B (en) | 2012-10-24 | 2012-10-24 | Method and device for testing mechanical property of motor |
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| CN201210409580.0A CN102928779B (en) | 2012-10-24 | 2012-10-24 | Method and device for testing mechanical property of motor |
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| CN102928779A true CN102928779A (en) | 2013-02-13 |
| CN102928779B CN102928779B (en) | 2015-07-01 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472394A (en) * | 2013-09-29 | 2013-12-25 | 哈尔滨工业大学 | Testing method for mechanical characteristics of alternating-current permanent magnet motors |
| CN104007385A (en) * | 2013-12-21 | 2014-08-27 | 柳州科尔数字化制造技术有限公司 | Motor test bench |
| CN105137168A (en) * | 2015-08-29 | 2015-12-09 | 北京天航华创科技股份有限公司 | Low pressure case dynamic load sealing test system |
| CN109270453A (en) * | 2018-09-15 | 2019-01-25 | 中船重工西安东仪科工集团有限公司 | It is a kind of for testing the device and method of pulse motor load capacity |
| CN111490707A (en) * | 2020-06-24 | 2020-08-04 | 四川大学 | Multi-mode electronic torque load meter |
| CN112595538A (en) * | 2020-12-31 | 2021-04-02 | 重庆隆鑫通航发动机制造有限公司 | Performance testing device of mower |
| CN115313926A (en) * | 2022-08-30 | 2022-11-08 | 兰州空间技术物理研究所 | Load damping control method for double-step motor |
| CN117053654A (en) * | 2023-10-12 | 2023-11-14 | 航天江南集团有限公司 | Loading device of unmanned aerial vehicle servo mechanism |
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| JP2000341999A (en) * | 1999-05-28 | 2000-12-08 | Yaskawa Electric Corp | Identification of constant for synchronous motor |
| CN2470840Y (en) * | 2000-05-18 | 2002-01-09 | 上海宝钢益昌薄板有限公司 | Testing device of electric motor |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103472394A (en) * | 2013-09-29 | 2013-12-25 | 哈尔滨工业大学 | Testing method for mechanical characteristics of alternating-current permanent magnet motors |
| CN103472394B (en) * | 2013-09-29 | 2015-09-09 | 哈尔滨工业大学 | AC magnetoelectric machine mechanical characteristic test method |
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| CN105137168B (en) * | 2015-08-29 | 2018-06-01 | 北京天航华创科技股份有限公司 | A kind of low pressure case dynamic load sealing test system |
| CN109270453B (en) * | 2018-09-15 | 2023-09-01 | 中船重工西安东仪科工集团有限公司 | Device and method for testing load capacity of pulse motor |
| CN109270453A (en) * | 2018-09-15 | 2019-01-25 | 中船重工西安东仪科工集团有限公司 | It is a kind of for testing the device and method of pulse motor load capacity |
| CN111490707A (en) * | 2020-06-24 | 2020-08-04 | 四川大学 | Multi-mode electronic torque load meter |
| CN112595538A (en) * | 2020-12-31 | 2021-04-02 | 重庆隆鑫通航发动机制造有限公司 | Performance testing device of mower |
| CN115313926A (en) * | 2022-08-30 | 2022-11-08 | 兰州空间技术物理研究所 | Load damping control method for double-step motor |
| CN115313926B (en) * | 2022-08-30 | 2023-12-12 | 兰州空间技术物理研究所 | Load damping control method for double stepping motors |
| CN117053654A (en) * | 2023-10-12 | 2023-11-14 | 航天江南集团有限公司 | Loading device of unmanned aerial vehicle servo mechanism |
| CN117053654B (en) * | 2023-10-12 | 2023-12-12 | 航天江南集团有限公司 | Loading device of unmanned aerial vehicle servo mechanism |
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| CN102928779B (en) | 2015-07-01 |
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