CN100593698C - Ultrasound electric motor universal test device - Google Patents
Ultrasound electric motor universal test device Download PDFInfo
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- CN100593698C CN100593698C CN200810037095A CN200810037095A CN100593698C CN 100593698 C CN100593698 C CN 100593698C CN 200810037095 A CN200810037095 A CN 200810037095A CN 200810037095 A CN200810037095 A CN 200810037095A CN 100593698 C CN100593698 C CN 100593698C
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- electric motor
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Abstract
The invention relates to an ultrasonic motor universal measuring device, belonging to the filed of ultrasonic motor technique. The invention is composed of an encoding component comprising reflectingmaterial, a hard lightweight circular aluminum plate; and a measuring component comprising a laser sensor, a laser sensor mounting bracket, a spring, and a spring bracket; wherein the spring is fixedto the spring bracket, with one end being connected to a rotating shaft of a rotating ultrasonic motor or an active cell or a linear ultrasonic motor; the laser sensor is fixed to the laser sensor mounting bracket; the hard lightweight circular aluminum plate is adhered to the surface vertical axially to the rotating shaft of the rotating ultrasonic motor or to the surface of the active cell of the linear ultrasonic motor; the reflecting material is adhered to the hard lightweight circular aluminum plate, and the laser spot of the laser sensor is capable of injecting vertically to the reflecting material. The invention is simple and reliable with low cost, which is easy to accomplish. Mechanical features of the linear ultrasonic motor or rotating ultrasonic motor with different structurescould be obtained by the measuring device.
Description
Technical field
What the present invention relates to is a kind of measurement mechanism of technical field of motors, particularly a kind of ultrasound electric motor universal test device.
Background technology
Ultrasound electric machine is an inverse piezoelectric effect of utilizing piezoelectric, excite the micro breadth oscillation of elastic body (stator) in supersonic range, and converting vibration rotation (straight line) motion of rotor (mover) to by the rubbing action between the stator and rotor (mover), output power drives load.Ultrasound electric machine and traditional the same mechanical property (load characteristic) that oneself is arranged of electromagnetic machine comprise rotating speed-moment of torsion, rotating speed-efficient and rotating speed-output power curve, temperature etc., and they are to weigh the most important performance index of motor.When design, according to the kinetic model of ultrasound electric machine, can estimate out the mechanical property of ultrasound electric machine, but the performance quality of ultrasound electric machine need be by verifying.
Traditional ultrasound electric machine device for measuring properties has following two characteristics:
1) adopts non-cpntact measurement such as photoelectric encoder.For example, " the supersonic motor velocity characteristic Testing Technology Study " that Jin Long etc. deliver at " micromotor " (2004 the 37th volume the 6th phase 61-68 pages or leaves) proposed in this article to measure The performance of ultrasonic motor with photoelectric encoder.By photoelectric encoder the speed variable is transferred to pulse signal, be transported in the computing machine again and handle.Deficiency is: can only be used for the measurement of rotary ultrasonic motor rotating speed, not relate to the measurement of rotary ultrasonic motor torque, and the linear ultrasonic motor force measurement, and the measurement of output torque is an important indicator of studying the performance that how to improve ultrasound electric machine; Because photoelectric encoder and being connected of ultrasound electric machine need shaft joint will bring a series of contact problems such as right alignment like this.
2) adopt contact measurements such as torque and speed sensors or magnetic hysteresis dynamometer machine, rotating speed and the torque that can measure rotary ultrasonic motor simultaneously.For example, " ultrasound electric machine technology and the application " that authors such as the living academician of Zhao Chun were published by Science Press in 2007 proposes the mechanical property with measurement ultrasound electric machines such as magnetic hysteresis dynamometer machine and Dynamometer Control devices in this book.Its deficiency is: only be applied to rotary-type ultrasound electric machine, can not test linear ultrasonic motor simultaneously; Because proving installation contacts as load and ultrasound electric machine, has not only influenced the output performance of ultrasound electric machine, and, differ and afford to load this load surely because the absolute output torque of ultrasound electric machine is little; Moreover, the certain fund of appliance requires cost of employing, and data processing software module more complicated.
Summary of the invention
The present invention is directed to the deficiency of existing ultrasound electric machine test macro, a kind of universal measurement system of ultrasound electric machine performance is proposed, this system is simpler than system known per, more convenient, not only can measure the rotating speed and the torque of rotary ultrasonic motor simultaneously, also can measure the power and the speed of linear ultrasonic motor simultaneously.This system is by the measurement to ultrasound electric machine transient speed or speed, and the conversion through respective formula can conveniently obtain the torque or the power of ultrasound electric machine again, thereby obtains the corresponding mechanical characteristic of ultrasound electric machine.The present invention makes it that a kind of simple and convenient measurement scheme can be provided for the motor of different structure by the design to the ultrasound electric machine test macro.
The present invention is achieved through the following technical solutions, and the present invention is made up of test suite and encoder component.Test suite comprises laser sensor, laser sensor fixed mount, spring, spring suppport.Encoder component comprises reflectorized material, hard lightweight cylindrical plate.Annexation is: spring is fixed on the spring suppport, and an end is connected in the rotating shaft of rotary ultrasonic motor or on the mover of linear ultrasonic motor, laser sensor is fixed on the laser sensor fixed mount.Hard lightweight cylindrical plate stick on the axially vertical surface of the rotating shaft of rotary ultrasonic motor on or be attached on the linear ultrasonic motor mover surface, reflectorized material sticks on the hard lightweight cylindrical plate, and make the laser facula of laser sensor can perpendicular projection on reflectorized material.
When the present invention was used for the rotary ultrasonic motor measurement, wherein reflectorized material (its reflectivity is more than 80%) was gone up according to identical distance, scribbles the blackstreak of width greater than spot diameter equably, is similar to grating.
When the present invention was used for the linear ultrasonic motor measurement, encoder component can adopt reflective sheeting.
The light of laser sensor to rotary ultrasonic motor rotating shaft or linear ultrasonic motor mover same axially on, and the distance of laser sensor and encoder component is in the working range of laser sensor.Laser sensor is set to gather the digital signal state, when rotary ultrasonic motor rotation or the motion of linear ultrasonic motor mover, encoder component follows rotary ultrasonic motor rotating shaft or linear ultrasonic motor mover to move together, laser sensor is gathered numeral or the simulating signal on the reflectorized material, and outputs to the processing of the enterprising line data of processor such as computing machine or single-chip microcomputer.Pulling spring in the time of the ultrasound electric machine motion, according to the variation and the time interval of ultrasound electric machine speed, calculate the ultrasound electric machine acceleration of this moment, thereby obtain the torque and the linear ultrasonic motor acceleration at this moment of rotary ultrasonic motor, thereby obtain the mechanical characteristic of ultrasound electric machine.
Compared with prior art, the present invention is by the rotating speed of non-cpntact measurement rotary ultrasonic motor or the movement velocity of linear ultrasonic motor, can really eliminate the right alignment problem, avoided because ultrasound electric machine contacts the direct influence that brings with surveying instrument, and can obtain the respective torque of rotary ultrasonic motor or the corresponding force of linear ultrasonic motor according to simple conversion.Instrument cost of the present invention is low, and convenient and reliable operation is applicable to the linear ultrasonic motor of different structure or the test of rotary ultrasonic motor mechanical property.
Description of drawings
Fig. 1 is the embodiment of the invention one structural representation
Fig. 2 is the embodiment of the invention two structural representations
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment one
Present embodiment is the measuring system that is used for rotary ultrasonic motor, among Fig. 1, and rotary ultrasonic motor 1, rotary ultrasonic motor rotating shaft 2.
As shown in Figure 1, present embodiment comprises: data processor 7, laser sensor 5, laser sensor fixed mount 6, spring 8, spring suppports 9 such as encoder component 3, computing machine or single-chip microcomputer.
Wherein: data processors 7 such as laser sensor 5, laser sensor fixed mount 6, computing machine or single-chip microcomputer, spring 8, spring suppport 9 are formed test suite.Reflectorized material, hard lightweight cylindrical plate are formed encoder component 3.
The annexation of above-mentioned parts is: spring 8 is fixed on the spring suppport 9, and an end is connected in the rotating shaft 2 of rotary ultrasonic motor 1, and laser sensor 5 is fixed on the laser sensor fixed mount 6.Hard lightweight cylindrical plate stick on the axially vertical surfaces of rotary ultrasonic motor rotating shaft 2 on, reflectorized material sticks on hard lightweight cylindrical plate, and make the laser facula 4 of laser sensor 5 can perpendicular projection on encoder component 3.
Described laser sensor 5, its working range is between 75mm-125mm.
Described reflectorized material, its reflectivity is more than 80%.
The realization of the concrete work of present embodiment comprises following process:
Embodiment two
Present embodiment is the measuring system that is used for linear ultrasonic motor, among Fig. 2, and linear ultrasonic motor mover 1.
As shown in Figure 2, present embodiment comprises: data processor 7, spring 8, spring suppports 9 such as encoder component 2 (or reflective sheeting), mover guide rail 3, laser sensor 5, laser sensor fixed mount 6, computing machine or single-chip microcomputer.Wherein data processors 7 such as laser sensor 5, laser sensor fixed mount 6, computing machine or single-chip microcomputer, spring 8, spring suppport 9 constitute test suite.Reflectorized material (its reflectivity is more than 80%), hard lightweight cylindrical plate are formed encoder component 2.
The annexation of above-mentioned parts is: spring 8 is fixed on the spring suppport 9, and an end is connected on the linear ultrasonic motor mover 1, and laser sensor 5 is fixed on the laser sensor fixed mount 6.Hard lightweight cylindrical plate stick on the axially vertical surface of linear ultrasonic motor mover 1 on, reflectorized material (its reflectivity is more than 80%) sticks on hard lightweight cylindrical plate, and laser facula 4 perpendicular projection that make laser sensor 5 are on encoder component 2.
As can be seen from the above-described embodiment, the movement velocity of rotating speed or linear ultrasonic motor by the non-cpntact measurement rotary ultrasonic motor, can really eliminate the right alignment problem, avoided because ultrasound electric machine contacts the direct influence that brings with surveying instrument, and can obtain the respective torque of rotary ultrasonic motor or the corresponding force of linear ultrasonic motor according to simple conversion.Instrument cost of the present invention is low, and convenient and reliable operation is applicable to the linear ultrasonic motor of different structure or the test of rotary ultrasonic motor mechanical property.
Claims (7)
1, a kind of ultrasound electric motor universal test device, comprise test suite, it is characterized in that, also comprise encoder component, described encoder component comprises reflectorized material, hard lightweight cylindrical plate, described test suite comprises laser sensor, the laser sensor fixed mount, spring, spring suppport, spring is fixed on the spring suppport, one end is connected in the rotating shaft of rotary ultrasonic motor or on the mover of linear ultrasonic motor, laser sensor is fixed on the laser sensor fixed mount, hard lightweight cylindrical plate stick on the axially vertical surface of the rotating shaft of rotary ultrasonic motor on or be attached on the linear ultrasonic motor mover surface, reflectorized material sticks on the hard lightweight cylindrical plate, and make the laser facula of laser sensor can perpendicular projection on reflectorized material.
2, ultrasound electric motor universal test device according to claim 1 is characterized in that, according to identical distance, scribbles the blackstreak of width greater than spot diameter equably on the described reflectorized material.
3, ultrasound electric motor universal test device according to claim 1 and 2 is characterized in that, described reflectorized material, and its reflectivity is more than 80%.
4, ultrasound electric motor universal test device according to claim 1 is characterized in that, described encoder component is a reflective sheeting.
5, ultrasound electric motor universal test device according to claim 1, it is characterized in that, the light of described laser sensor to rotary ultrasonic motor rotating shaft or linear ultrasonic motor mover same axially on, and the distance of laser sensor and encoder component is in the working range of laser sensor.
6, ultrasound electric motor universal test device according to claim 1, it is characterized in that, when rotary ultrasonic motor rotation or the motion of linear ultrasonic motor mover, encoder component follows rotary ultrasonic motor rotating shaft or linear ultrasonic motor mover to move together, laser sensor is gathered numeral or the simulating signal on the reflectorized material, outputs to the processing of the enterprising line data of processor.
7, according to claim 1 or 5 or 6 described ultrasound electric motor universal test devices, it is characterized in that, described laser sensor, its working range is between 75mm-125mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810037095A CN100593698C (en) | 2008-05-08 | 2008-05-08 | Ultrasound electric motor universal test device |
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| CN200810037095A CN100593698C (en) | 2008-05-08 | 2008-05-08 | Ultrasound electric motor universal test device |
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| CN101266178A CN101266178A (en) | 2008-09-17 |
| CN100593698C true CN100593698C (en) | 2010-03-10 |
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| CN200810037095A Expired - Fee Related CN100593698C (en) | 2008-05-08 | 2008-05-08 | Ultrasound electric motor universal test device |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014164207A1 (en) * | 2013-03-12 | 2014-10-09 | Stryker Corporation | Sensor assembly and method for measuring forces and torques |
| CN103472395B (en) * | 2013-09-29 | 2015-08-19 | 哈尔滨工业大学 | The travelling wave supersonic motor load characteristic proving installation that open precompression is controlled |
| CN105509812A (en) * | 2016-01-08 | 2016-04-20 | 苏州市职业大学 | Ultrasonic motor performance testing device |
| CN108593955B (en) * | 2018-04-04 | 2020-04-17 | 天津大学 | Instant rotating speed testing method under condition of rotating speed periodic fluctuation |
| CN110096005A (en) * | 2019-04-03 | 2019-08-06 | 中国人民解放军国防科技大学 | Ultrasonic motor multi-parameter rapid measurement and control device and measurement and control method |
| CN113533774B (en) * | 2020-04-21 | 2023-08-15 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Wide-speed-range laser speed measurement and calibration test device and method |
| CN114689098B (en) * | 2020-06-18 | 2024-01-16 | 中国科学院苏州生物医学工程技术研究所 | Ultrasonic rotary encoder |
| CN115342866B (en) * | 2022-10-18 | 2023-01-31 | 中国空气动力研究与发展中心高速空气动力研究所 | Piezoelectric ceramic actuator detection device and system |
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2008
- 2008-05-08 CN CN200810037095A patent/CN100593698C/en not_active Expired - Fee Related
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