The development and application of ultrasonic motor
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The development and application of ultrasonic motor

Views: 0     Author: Site Editor     Publish Time: 2020-11-12      Origin: Site

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1




come to ultrasonic motor









ultrasonic brushless motor is a set is a set of ultrasonics, vibration, material science and tribology, electronics and control science and technology for the integration of multidisciplinary cross. Motor using the converse piezoelectric effect of piezoelectric materials made of new type of drive. It is composed of stator and rotor and exerted pressure on institutions and other components. Add the ultrasonic frequency alternating voltage on the piezoelectric ceramic can be generated in the stator surface ultrasonic vibration, and by the friction between stator and rotor driven rotor movement.



compared with electromagnetic motor, the ultrasonic motor's main features include:



big torque low rotation speed, without retarding mechanism;



the energy density is big, can be up to 3 - electromagnetic motor10 times;



response speed, only ms level;



high positioning accuracy;



no electromagnetic interference;



because of the driven by friction, has the self-locking function.




























2



the development of ultrasonic motor
















with the rapid development of micro mechanical, microelectronics, especially, nanotechnology and other sophisticated national defense technology of biomedical technology, semiconductor technology, etc. More and more demand for micro motor.



in the electronics industry product handset demand is also increasing, according to the network data, only in October 2018, China's smartphone shipments reached 3626. Compared with 1, 50000. 3% year-on-year, accounting for the domestic mobile phone shipments of 94. 1%, camera phones has become people daily main tools.



with casting technology of nut type ultrasonic brushless motor products, because of its simple structure, diverse and flexible, no electromagnetic interference and so on incomparable marked characteristics greatly better than the electromagnetic motor, the motor performance is very suitable for mobile phones and digital cameras for the focus lens driver, for the people to the mobile phone camera experience and requirements gradually increase, the application of ultrasonic motor will play a very important role.
































3



ultrasonic motor more application scenario for the
















aerospace fields: aviation spacecraft are often in high vacuum, extreme temperature, strong radiation, not bad conditions, such as effective lubrication and demanding for the system weight, the best choice of the ultrasonic motor is one of the drive.



precision instruments: electromagnetic motors with gear box to slow down to increase torque, gear clearance and hysterisis error due to existence, to meet the high positioning accuracy, and the ultrasonic motor can be directly driven, and quick response, good control characteristic, can be used for precision instrument and meter.



robot joints drive: using ultrasonic motor as a robot joints drive, but the fixed part and moving parts of joints separately and set of ultrasonic motor, the rotor as an organic whole, make whole body is very compact. Japan developed the spherical ultrasonic motor, multiple degrees of freedom robot driver solved many problems.



the micro-actuators in micromachine technology: miniature motor, which is the core of the micro mechanical, is an important symbol of the micro mechanical development level. Micro-electronic mechanical system (微型电子机械系统、缩写MEMS)Manufacturing research and development, the motor is millimeter. Medical field is micro mechanical technology using one of the most representative field, ultrasonic motor in surgical robots and surgical instruments have been applied.



strong electromagnetic interference and electromagnetic interference are not allowed to produce occasions: in nuclear magnetic resonance (NMR) environment and maglev train running conditions, the electromagnetic motor can't work normally, ultrasonic motor is capable of.

HOPRIO group a professional manufacturer of controller and motors, was established in 2000. Group headquarters in Changzhou City, Jiangsu Province.

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