CN103033748A - Counter-trawling loading low speed electrical machine test equipment based on flexible hinge - Google Patents
Counter-trawling loading low speed electrical machine test equipment based on flexible hinge Download PDFInfo
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- CN103033748A CN103033748A CN2012105810608A CN201210581060A CN103033748A CN 103033748 A CN103033748 A CN 103033748A CN 2012105810608 A CN2012105810608 A CN 2012105810608A CN 201210581060 A CN201210581060 A CN 201210581060A CN 103033748 A CN103033748 A CN 103033748A
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Abstract
The invention provides counter-trawling loading low speed electrical machine test equipment based on a flexible hinge. The counter-trawling loading low speed electrical machine test equipment based on the flexible hinge comprises a base and a flexible hinge structure which is used for testing the electrical machine torque. The base is provided with a trawled electrical machine which is as load. The trawled electrical machine comprises a rotary encoder or a raster structure which is used for testing revolving speed of the electrical machine. A foil gauge is attached to the flexible hinge structure which is used for testing the electrical machine torque. The trawled electrical machine, the flexible hinge structure, and the tested electrical machine are connected through a coupler. The base also comprises an electric module. The electric module is provided with a sensor used for testing current and voltage changes, a test circuit corresponding to the sensor, a rotary encoder or a drive decoding circuit corresponding to the raster, a slide rheostat which is connected with the trawled electrical machine and used for dynamically changing the load, a test circuit power supply and a radio station (RS) 232 communication interface and the like. All dynamic parameters including revolving speed torque of the low speed electrical machine can be accurately stabilized and tested. Cost is low, size is small, and applied range is wide.
Description
Technical field
The present invention relates to electromechanical testing equipment, specifically, is a kind ofly to load the slowspeed machine testing apparatus based on flexible hinge to dragging.
Background technology
Motor test is the important step to quality of motors and technical feature comprehensive evaluation, is the important procedure of motor manufacturing and production, for the quality and performance index of the confirming motor important step that is absolutely necessary.Traditional testing equipment and method need the instrument of observation many because the running time is long, manually read test data and carry out data analysis, calculating, have affected to a certain extent quality and the precision of motor test.Common electromechanical testing platform just is used for test by the electrical quantity of measured motor and main static parameter, is difficult for adjusting load, can not carry out dynamic torque and load, and volume is larger, and range of application has limitation.
Load model relatively more commonly used in the Motor Measuring Technology that extensively adopts now and the electromechanical testing platform is current vortex loader or magnetic loader dynamometer machine.The electromechanical testing platform that a kind of load is the current vortex loader is disclosed in notification number is the patent of CN201804091U.When adopting current vortex loader or magnetic loader to carry out electromechanical testing as load, to produce inevitably by a relatively large margin torque ripple at lower-speed state, even hysteresis can occur cause the torque of regularization to be fluctuated widely, will produce serious adverse effect for the test result of slowspeed machine; Therefore adopt the test platform of current vortex loader or magnetic loader in the test of slowspeed machine, to show and enter not to the utmost people's will.
In addition, the tachometer torquemeter device that extensively adopts in the similar testing apparatus is with high costs, needs greatly to increase cost under the high torque (HT) measuring accuracy requires, and therefore obtaining preferably under lower cost, the torque testing precision also is one of improved direction.
Summary of the invention
For defective of the prior art, it is undesirable and adopt tachometer torquemeter device problem with high costs in the lower-speed state result that the present invention is intended to solve the conventional motors test platform.
Load the slowspeed machine proving installation according to provided by the invention to dragging, comprise base, also comprise successively the quilt that connects drag motor, the first shaft coupling, flexible hinge structure, the second shaft coupling, by measured motor, describedly dragged motor and be arranged on the described base by measured motor, describedly dragged motor as load, wherein, described flexible hinge structure is for can measure the column type hollow arbor braid tabula flexible hinge structure of deformation when torsional moment occurs.
Preferably, also comprise foil gauge, wherein, described foil gauge is attached on the described flexible hinge structure, and described foil gauge is used for measuring motor torque.
Preferably, the described motor that dragged comprises rotary encoder or optical grating construction, is used for measuring motor speed.
Preferably, also comprise the electrical module that is arranged on the described base, wherein, described electrical module comprise following any or appoint a plurality of devices:
-for measuring described sensor and the corresponding test circuit thereof that is dragged motor and tested current of electric, change in voltage;
-driving the decoding circuit of answering with described rotary encoder or grating pair;
-drag motor to connect the slide rheostat that is used for dynamically changing load with being connected;
-test circuit power supply;
-RS232 communication interface is used for carrying out communication with PC software and transmission shows test mode in real time.
Flexure hinge mechanism, refer under external force or moment loading the characteristic of utilizing resilient material microdeformation and certainly replying, a kind of special kinematic pair form of formation, than traditional rigid hinge mechanism, have many good qualities, as: do not have mechanical friction, have the displacement resolution of superelevation, simple in structure, easy to assembly, need not to lubricate environmental friendliness etc.
So-called to dragging motor experiment to refer to: during motor test, the motor that two power is suitable mechanically with electric on interconnect, wherein a motor moves as motor, and another is as generator operation.The loss of two motors is supplied with by line power or booster.To dragging when experiment, be connected in series slide rheostat at the motor winding as generator operation, just can realize easily dragged the variation of load by measured motor, it is a kind of splendid electromechanical testing load mode, compared and to have loaded continuously with the magnetic loading mode with traditional current vortex loading, load and setting range are large, apply the obvious advantage of the stable little grade of fluctuation of load.
The present invention has obvious advantage with respect to traditional electromechanical testing equipment:
(1) adopt the flexible hinge structure for the output torque of measuring motor, with low cost, convenient processing and manufacture, size can be adjusted in suitable scope, applied range, and measurement result is accurate;
(2) adopt dragging the motor loading mode, load and stablize, fluctuate minimum, be applicable to low speed to whole ranges of speeds at a high speed;
(3) overcome legacy equipment and can only measure static parameter and a small amount of electrical quantity, the shortcoming of inconvenience is adjusted in torque, the rotational speed and torque of dynamic measurement motor simultaneously, electric current and voltage, the quantity of parameters such as efficient;
(4) the test platform volume is little, and is easy to use, answers recruitment in extensive range;
(5) can with the PC software communication, can conveniently carry out follow-up data and process.
Description of drawings
By reading the detailed description of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present invention will become:
Fig. 1 be according to provided by the invention based on flexible hinge to dragging the structural representation that loads the slowspeed machine testing apparatus;
Fig. 2 be shown in Figure 1 based on flexible hinge to dragging the enlarged diagram that loads flexible hinge structure in the slowspeed machine testing apparatus.
Among the figure:
1 is base;
2 for being dragged motor;
3 is the flexible hinge structure;
4 is by measured motor;
5 is the first shaft coupling;
6 is the second shaft coupling;
7 is electrical module;
8 is the link of flexible hinge and the first shaft coupling;
9 is the link of flexible hinge and the second shaft coupling;
10 is foil gauge.
Embodiment
The present invention is described in detail below in conjunction with specific embodiment.Following examples will help those skilled in the art further to understand the present invention, but not limit in any form the present invention.Should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement.These all belong to protection scope of the present invention.
As shown in Figure 1.Provided by the present inventionly load the slowspeed machine testing apparatus based on flexible hinge to dragging, comprise base 1 and flexible hinge structure 3, the quilt that base 1 is provided with as load drags motor 2 Hes, is dragged motor 2 itself to comprise rotary encoder or optical grating construction, is used for measuring motor speed; Flexible hinge structure 3 is used for measuring motor torque, attaches foil gauge 10 on the flexible hinge structure 3, is used for measuring motor torque.To be dragged one section 8 of motor 2, flexible hinge structure 3 to couple together by the first shaft coupling 5, be coupled together with the other end 9 of flexible hinge structure 3 with by measured motor 4 by the second shaft coupling 6 again.
Correctly measure by every dynamic parameter of measured motor for complete, also be provided with electrical module 7 on the described base 1, electrical module 7 comprises such as lower device:
-for sensor and its corresponding test circuit of measuring electric current, change in voltage;
-with the corresponding driving decoding circuit of rotary encoder or grating;
-drag motor to connect the slide rheostat that is used for dynamically changing load with being connected;
-test circuit power supply etc.
During test, order is rotated with target velocity by measured motor 4, and the slide rheostat that adjust in the electrical module 7 this moment can be realized being loaded by the varying duty of measured motor 4.After connecting PC by the RS232 communication interface on the electrical module 7, can obtain a large amount of in real time about by measured motor 4 performance test data by data communication, be specially:
(1) can draw by simple computation current by the fact of measured motor 4 output torque situation by the voltage change that reads foil gauge (comprising that visible foil gauge 10 among the figure and all the other are attached at the sightless in the drawings foil gauge on the flexible hinge structure 3);
(2) can decode by the code device signal that drags motor 2 to provide by the decoding circuit in the electrical module 7, thereby can accurately find out the real-time rotate speed situation of being dragged motor 2 and testing of electric motors 4;
(3) by the voltage and current sensor in the electrical module 7, can accurately find out by three-phase voltage, the electric current real-time situation of change of measured motor 4 when moving.
Experimental results show that, by changing by the rotating speed of target of measured motor 4 and the slide rheostat of adjusting 7 kinds of electrical modules, can obtain the electromechanical testing related data under a large amount of different rotating speeds and the loading condition, comprise rotating speed-torque curve, motor phase voltage, phase current curve etc.Can carry out detailed analysis completely to motor performance by these data.
Above specific embodiments of the invention are described.It will be appreciated that, the present invention is not limited to above-mentioned specific implementations, and those skilled in the art can make various distortion or modification within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (4)
1. one kind loads the slowspeed machine proving installation to dragging, comprise base, it is characterized in that, also comprise successively the quilt that connects drag motor, the first shaft coupling, flexible hinge structure, the second shaft coupling, by measured motor, describedly dragged motor and be arranged on the described base by measured motor, describedly dragged motor as load, wherein, described flexible hinge structure is for can measure the column type hollow arbor braid tabula flexible hinge structure of deformation when torsional moment occurs.
2. according to claim 1ly load the slowspeed machine proving installation to dragging, it is characterized in that, also comprise foil gauge, wherein, described foil gauge is attached on the described flexible hinge structure, and described foil gauge is used for measuring motor torque.
3. according to claim 1ly load the slowspeed machine proving installation to dragging, it is characterized in that, the described motor that dragged comprises rotary encoder or optical grating construction, is used for measuring motor speed.
4. each describedly loads the slowspeed machine proving installation to dragging in 3 according to claim 1, it is characterized in that, also comprises the electrical module that is arranged on the described base, wherein, described electrical module comprise following any or appoint a plurality of devices:
-for measuring described sensor and the corresponding test circuit thereof that is dragged motor and tested current of electric, change in voltage;
-driving the decoding circuit of answering with described rotary encoder or grating pair;
-drag motor to connect the slide rheostat that is used for dynamically changing load with being connected;
-test circuit power supply;
-RS232 communication interface is used for carrying out communication with PC software and transmission shows test mode in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012105810608A CN103033748A (en) | 2012-12-27 | 2012-12-27 | Counter-trawling loading low speed electrical machine test equipment based on flexible hinge |
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| CN2012105810608A CN103033748A (en) | 2012-12-27 | 2012-12-27 | Counter-trawling loading low speed electrical machine test equipment based on flexible hinge |
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| CN103033748A true CN103033748A (en) | 2013-04-10 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547161A (en) * | 2016-01-12 | 2016-05-04 | 苏州天准科技股份有限公司 | High precision flexible measuring device and method for length measuring |
| CN108020359A (en) * | 2018-02-01 | 2018-05-11 | 成都纵横大鹏无人机科技有限公司 | Realize the motor characteristic test device adjusted to different torque measurement ranges |
| CN108663617A (en) * | 2018-04-28 | 2018-10-16 | 武汉至驱动力科技有限责任公司 | Electric vehicle Modular Flexible power-measuring system and measurement of power method |
| CN105629170B (en) * | 2015-12-30 | 2019-01-01 | 广州广电计量检测股份有限公司 | A kind of electromagnetic compatibility motor loading test device |
| CN109407001A (en) * | 2018-09-04 | 2019-03-01 | 南京越博电驱动系统有限公司 | A kind of motor is to dragging test platform Monitor Computer Control System |
| CN109839234A (en) * | 2017-11-24 | 2019-06-04 | 广州誉鑫精密部件有限公司 | Full-automatic dynamics detection machine |
| RU191054U1 (en) * | 2019-01-23 | 2019-07-22 | Общество с ограниченной ответственностью "Партнер НКТ" | Motor test bench |
| CN111398816A (en) * | 2020-04-24 | 2020-07-10 | 泉州装备制造研究所 | Online testing device for motor system of legged robot |
| CN114838855A (en) * | 2022-05-10 | 2022-08-02 | 上海电机系统节能工程技术研究中心有限公司 | Dynamometer device and system for motor drag test |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109839234A (en) * | 2017-11-24 | 2019-06-04 | 广州誉鑫精密部件有限公司 | Full-automatic dynamics detection machine |
| CN108020359A (en) * | 2018-02-01 | 2018-05-11 | 成都纵横大鹏无人机科技有限公司 | Realize the motor characteristic test device adjusted to different torque measurement ranges |
| CN108020359B (en) * | 2018-02-01 | 2023-11-24 | 成都纵横大鹏无人机科技有限公司 | Motor characteristic testing device for realizing adjustment of measuring ranges of different torques |
| CN108663617A (en) * | 2018-04-28 | 2018-10-16 | 武汉至驱动力科技有限责任公司 | Electric vehicle Modular Flexible power-measuring system and measurement of power method |
| CN109407001A (en) * | 2018-09-04 | 2019-03-01 | 南京越博电驱动系统有限公司 | A kind of motor is to dragging test platform Monitor Computer Control System |
| RU191054U1 (en) * | 2019-01-23 | 2019-07-22 | Общество с ограниченной ответственностью "Партнер НКТ" | Motor test bench |
| CN111398816A (en) * | 2020-04-24 | 2020-07-10 | 泉州装备制造研究所 | Online testing device for motor system of legged robot |
| CN111398816B (en) * | 2020-04-24 | 2024-03-29 | 泉州装备制造研究所 | Online testing device of motor system for leg-foot robot |
| CN114838855A (en) * | 2022-05-10 | 2022-08-02 | 上海电机系统节能工程技术研究中心有限公司 | Dynamometer device and system for motor drag test |
| CN114838855B (en) * | 2022-05-10 | 2024-03-01 | 上海电机系统节能工程技术研究中心有限公司 | Dynamometer device and system for motor opposite-dragging test |
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Application publication date: 20130410 |