Contact surface positive pressure varying piezoelectric rotating driver

Abstract

The related piezoelectric rotatable driver with variable normal pressure on touch surface comprises: a shaft fixed on a base, a shaft lining rotatable connected the base, two one end of piezoelectric stacks bound on oblique surface of a triangular block, another end bound with inertial mass blocks (1, 2). Wherein, the stack 2 / 1 and inertial mass block 2 / 1 form piezoelectric stack oscillator 1 / 2. This invention uses single-path signal, can realize large-range drive, and has little effect on driver motion.

Description

technical field

[0001] The invention relates to a piezoelectric precision rotary driver, which uses a piezoelectric stack as a driving source. Background technique

[0002] In recent years, with the development of science and technology, research in the fields of optics, electronics, aviation, aerospace, machinery manufacturing, robotics, seismology, biology, medicine, and genetic engineering is in urgent need of submicron and nanoscale micro-displacement technology to achieve micro- / nano-level micro-operations. As the core component of the micro-operating system, the development of precision drives has become an important symbol of the development level of the micro-operating system. The current piezoelectric inertial drive mechanism mainly utilizes the inverse piezoelectric effect of the piezoelectric element, adopts asymmetric waveform excitation to form a two-way asymmetric inertial impact force, cooperates with the fixed friction force and organically combines the appr...

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