Prism longitudinal bend composite vibrator linear supersonic motor

A technology of linear ultrasonic motor and composite vibrator, which is applied in the direction of generator/motor, piezoelectric effect/electrostrictive or magnetostrictive motor, electrical components, etc. It can solve the problem of large thrust and large stroke linear ultrasonic motor with little research, etc. problems, to achieve the effect of convenient design and debugging, improving motor efficiency and increasing thrust

Inactive Publication Date: 2007-10-10
SOUTH CHINA AGRI UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

A variety of principle prototypes of linear ultrasonic motors have been developed abroad, while domestic research focuses on the research of high-resolution micro-actuators, and there is little research on large-thrust and large-stroke linear ultrasonic motors.

Method used

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  • Prism longitudinal bend composite vibrator linear supersonic motor
  • Prism longitudinal bend composite vibrator linear supersonic motor
  • Prism longitudinal bend composite vibrator linear supersonic motor

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] The structure schematic diagram of the present invention is shown in accompanying drawing 1, mainly by preloading screw 1, upper cover plate 2 of frame, preloading spring 3, mass block 4, stator 5 (being driving vibrator), mover 6, frame 7 Composed of seven components. The pre-tightening screw 1, the upper cover plate 2 of the frame, the pre-tightening spring 3 and the frame 7 constitute the pre-tightening force applying mechanism of the motor. By changing the feeding depth of the pre-tightening screw 1 and the elastic deformation of the pre-tightening spring 3, the Give the stator 5 a certain preload. The mover 6 is a linear slider with a guide groove on one side, and the slider is fixed on the bottom of the frame 7 . Both side plates of the frame 7 are provided with guide grooves, and the shoulders of the stator 5 can be placed in the frame 7 along the guide...

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Abstract

The linear ultrasound electrical motor (LUEM) includes drive oscillator, mover, chassis, and relevant locking gear for fastening them. The drive oscillator includes piezoelectric element and metal elastic body (MEB). The piezoelectric element includes piezoelectric ceramic piece (PCP) of bending vibration, and PCP of longitudinal vibration in use for generating rectilinear vibration. At least one dogtooth contacted to mover is setup on MEB. Slider of guiding bulge is setup on side of mover. The guiding bulge is corresponding to straight-line guidance groove setup on the chassis. The disclosed LUEM is longitudinal and bending composite driving LUEM with prism type oscillator. The drive oscillator is prism type longitudinal bending composite oscillator composed of connection terminals, longitudinal vibration rectangular PCP and front cover board fastened by double end bolts and nuts. The oscillator is as stator of LUEM to generate longitudinal and bending vibration.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic motors, in particular to a linear ultrasonic motor. Background technique [0002] At present, the traditional linear electromagnetic motor is widely used in various fields, but it has the following problems: [0003] The air gap is large, there is an edge effect, the transmission stiffness is small, and it is not suitable for large impact or dynamic load occasions, and the cost of using rare earth permanent magnets is high; the motor itself has no function of maintaining position when it is stopped; it is large and not suitable for small It produces a magnetic field, does not interfere with the surrounding environment, and has electromagnetic noise. [0004] In robotics and automation process equipment, the shortcomings of traditional electromagnetic motors are particularly prominent, such as small power / weight ratio, low transmission accuracy, and slow response. There...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/00H02N2/04
Inventor 张铁民梁丽英
Owner SOUTH CHINA AGRI UNIV
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