Clutch based on ultrasonic suspending force control

Abstract

The invention discloses a clutch used for a miniature high-speed rotating shaft. The clutch based on ultrasonic levitation force control is composed of active rotating disc 2, passive rotating disc 1, piezoelectric ceramic sheet 7, return spring 3 and high-frequency power supply 5, and the passive rotating disc 1 is buckled on the ring body 2 of the active rotating disc 2 -1, the end face of the active rotating disc 2 is in contact with one end face of the passive rotating disc 1, the piezoelectric ceramic sheet 7 is fixed on the other end face of the passive rotating disc 1, and the high frequency power supply 5 is connected to the end face of the piezoelectric ceramic sheet 7 On the terminal, the return spring 3 is arranged on the active rotating disk 2 or the passive rotating disk 1 to keep the active rotating disk 2 and the passive rotating disk 1 in contact. Another option is that the inner surface of the torus 2-1 is conical, the rim of 1 is conical, and the inner surface of 2-1 is in contact with the rim of 1. The invention uses ultrasonic levitation force as the driving force for separation, uses friction torque to transmit power, has simple structure, small size, fast response speed and is free from electromagnetic interference.

Description

Technical field: [0001] The invention relates to a clutch for a miniature high-speed rotating shaft using the principle of ultrasonic suspension. Background technique: [0002] At present, there are many types of clutches used between miniature and high-speed rotating shafts. Although each has its own unique characteristics, they are basically designed using electromagnetic principles or mechanical principles, so there are the following defects: 1. The response speed is not high. ; 2. Susceptible to electromagnetic interference and unstable movement; 3. The size of the clutch and assembly is large. Invention content: [0003] In order to overcome electromagnetic interference, increase response speed and reduce size, the present invention provides a clutch based on ultrasonic levitation force control. The clutch can not only be used in occasions with electromagnetic interference, but also can be applied to high-speed miniature shafts with high requirements for start-stop r...

AI Technical Summary

Problems solved by technology

[0002] At present, there are many types of clutches used between miniature and high-speed rotating shafts. Although each has its own unique characteristics, they are basically designed using electromagnetic principles or mechanical principles, so there are the following defects: 1. The response speed is not high. ; 2. Susceptible to electromagnetic interference and unstable movement; 3. Large clutch and assembly size

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