Longitudinal-curved composite linear ultrasonic motor with small frequency difference and high efficiency in the horizontal plane
A linear ultrasonic motor, high-efficiency technology, applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve the problem of small driving force and two-phase modal frequency Inconsistency, low motor efficiency and other problems, to achieve the effect of increasing output force, facilitating miniaturization, and facilitating processing
Active Publication Date: 2020-03-31
JIANGSU UNIV
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[0005] The purpose of the present invention is to design a low-frequency-difference and high-efficiency inner longitudinal- Bend composite linear ultrasonic motor
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[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0032] A low-frequency-difference, high-efficiency horizontal in-plane longitudinal-bend composite linear ultrasonic motor includes a base 7, a guide rail 1, a slider 2, a stator, a positioning and fixing device, and a pretensioning device. Such as figure 1 As shown, wherein, the base 7 is used to fix the guide rail 1, the L-shaped positioning bracket 6 and the U-shaped positioning bracket 11. The stator is used to generate mechanical vibration under the excitation of voltage. The guide rail 1 is used to support and restrain the movement of the slider 2. The positioning and fixing device includes an L-shaped positioning bracket 6, a U-shaped positioning bracket 11 and a nylon sleeve 3, which are respectively used to position and flexibly fix the stator and the pressure sensor 9, such as Figure 5 , 6 . The pre-tensioning device includes a pre-press...
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The invention relates to a horizontal plate type in-plane longitudinal-bending composite linear ultrasonic motor with low frequency difference and high efficiency, which is characterized by comprisinga base (7), a guide rail (1), a stator, a positioning and fixing device and a pre-tightening device, wherein the base (7) is used for installing components of the ultrasonic motor; the guide rail (1)is installed on the base (7), and the guide rail (1) is provided with a sliding block (2) capable of performing straight-line movement; the stator is also installed on the base (7), and the stator isused for generating mechanical vibration under the excitation of voltage; the positioning and fixing device is used for fixing the stator on the base (7); and the pre-tightening device is used for setting a pressing force between the stator and the sliding block. The horizontal plate type in-plane longitudinal-bending composite linear ultrasonic motor is simple in overall structure, convenient toprocess and conducive to miniaturization.
Description
technical field [0001] The present invention relates to an ultrasonic motor, in particular to an in-plane longitudinal-bend compound mode linear ultrasonic motor, in particular to a horizontal plate type in-plane longitudinal-bend compound linear ultrasonic motor with small frequency difference and high efficiency . Background technique [0002] Ultrasonic motor is a new type of micro motor, which belongs to a new concept of driving device. Compared with traditional electromagnetic motors, energy is not transferred through electro-magnetic conversion. Its working principle uses the inverse piezoelectric effect of piezoelectric ceramics to excite the micro-vibration of the stator in the ultrasonic frequency range, and converts the vibration of the stator into the macroscopic motion of the mover through the friction between the stator and the mover. The linear ultrasonic motor is an important branch of the ultrasonic motor. Because it can directly output linear motion, its s...
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IPC IPC(8): H02N2/02H02N2/04
CPCH02N2/02H02N2/04
Inventor 范佳丽张彦虎周玉华朱倩唐慧许晓静
Owner JIANGSU UNIV