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A sticky-slip inertial linear actuator based on surface inclination friction control

A linear drive and inertial technology, which is applied in the field of drive and stick-slip inertial linear drive, can solve the problems that cannot satisfy the precision drive field, the output displacement and force are small, and the drive displacement fluctuation is large, so as to achieve compact structure, output force and drive Fast speed and reduced return displacement effect

Active Publication Date: 2019-01-04
NINGBO UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To sum up, the existing piezoelectric inertial driver has a complex structure, relatively small output displacement and output force, and relatively large displacement fluctuations of the driver, which cannot meet the ever-changing precision driving field.

Method used

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  • A sticky-slip inertial linear actuator based on surface inclination friction control
  • A sticky-slip inertial linear actuator based on surface inclination friction control
  • A sticky-slip inertial linear actuator based on surface inclination friction control

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Embodiment Construction

[0017] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0018] see Figure 1-Figure 2 As shown, a stick-slip inertial linear actuator based on surface tilt friction regulation in this embodiment includes a flexible hinge amplification mechanism 2, a piezoelectric stack actuator 3, a guide rail 4, a base 7 and a mover 8;

[0019] The flexible hinge amplifying mechanism 2 is fixed on the base 7, the piezoelectric stack actuator-3 is installed in the flexible hinge amplifying mechanism 2, and the piezoelectric stack actuator-3 is pre-tightened on the flexible hinge amplifying mechanism 2 through screw connection Part one 1 applies a pre-tightening force, the guide rail 4 is a hollow structure with both ends closed, one end of the guide rail 4 is connected with the flexible hinge amplification mechanism 2, and the other end is arranged on the base 7 and can ...

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Abstract

The invention relates to a sticky-slip inertial linear actuator controlled by surface inclination friction, which relates to an actuator, comprising a flexure hinge amplifying mechanism, a piezoelectric stack actuator 1, a guide rail, a base and a mover; The flexure hinge amplifying mechanism is fixed on the base, the piezoelectric stack actuator 1 is installed in the flexure hinge amplifying mechanism, the piezoelectric stack actuator 1 is pre-tightened by a pre-tightened connector which is screwed on the flexure hinge amplifying mechanism, and the guide rail is a hollow structure which is closed at both ends; The guide rail is internally machined with a triangular amplifying mechanism in which a piezoelectric stack actuator (2) capable of adjusting the inclination angle of the guide railis mounted, a mover is arranged on the guide rail, and a friction material layer with self-lubricating characteristics in contact with the guide rail is fixedly connected on the surface of the mover.The invention has the advantages of large output force and displacement, compact structure, stable operation and bi-directional operation with load, and has wide application prospect.

Description

technical field [0001] The invention relates to a driver, in particular to a stick-slip inertial linear driver based on surface microstructure friction control, belonging to the field of piezoelectric drive technology. Background technique [0002] Piezoelectric stick-slip (friction type) inertial drive is driven by the slow elongation-rapid shortening of piezoelectric ceramics or the slow bending-rapid straightening of bimorphs, with low noise, slight wear, low energy consumption, and easy driving , large driving stroke, simple control system and other advantages. Therefore, the piezoelectric stick-slip inertial actuator has a very broad application prospect in the field of precision driving. [0003] The application number is 201810081813.6. The double-stator fixed piezoelectric inertial driver and its driving method adopt a cable-stayed motion conversion beam structure to comprehensively control the friction between the cable-stayed stator assembly and the mover assembly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/02
CPCH02N2/025
Inventor 李锦棒曾帅帅于爱兵陈鹏飞
Owner NINGBO UNIV
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