Staggered quadruped drive piezoelectric stepper linear motor
A linear motor and stepping technology, applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve problems such as low efficiency, thrust fluctuations, and much useless work, and achieve Effect of increasing contact area, maintaining contact force, and improving stability
Active Publication Date: 2022-03-11
HUAQIAO UNIVERSITY
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Problems solved by technology
The patent (ZL201710120152.9) realizes the stable operation of a large stroke by switching between the two states of four driving feet sequentially and simultaneously; less efficient
This form of motion is difficult to ensure that the surface contact is always maintained during the driving process, and often only through point contact or line contact, resulting in a large impact on the surface processing accuracy of the friction pair during the entire stroke, which is prone to thrust fluctuations
Method used
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[0043] In order to make the objectives, technical solutions and beneficial effects of the present invention clearer and clearer, the preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so as to facilitate the understanding of technical personnel.
[0044] Such as figure 1 As shown, the interlaced quadruped driving piezoelectric stepping linear motor of the present invention has a specific structure including a first actuating rod 1, a guide seat 2, a third actuating rod 3, a vertical flexible hinge 4, and a fourth actuating rod 5 , the fifth actuator rod 6, the sixth actuator rod 7, the middle base 8, the second actuator rod 9, the horizontal clamp foot 10, the mover 11, the vertical clamp foot 12, the linkage rod II13, the linkage rod I14, horizontal flexible hinge 15, upper base 16, compression spring 17.
[0045] The vertical flexible hinge 4 includes a vertical flexible hinge I 401 , a vertical fl...
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The invention relates to a piezoelectric stepping linear motor driven by a staggered quadruped. The first actuating rod and the second actuating rod are symmetrically distributed relative to the mover. The side upper base is connected, one end of the second actuating rod is connected with the right upper base through the right horizontal flexible hinge, the other end of the first actuating rod is connected with the first group of clamping mechanisms, and the second The other end of the actuating rod is matched with the second set of clamping structures. The present invention proposes to drive the piezoelectric stepping linear motor with staggered quadrupeds. The expansion and contraction effect of the laminated piezoelectric ceramics is transmitted to the mover through the swing rod and the displacement conversion mechanism, and the direction of the output displacement is parallel to the direction of the expansion and contraction of the laminated piezoelectric ceramics; After the piezoelectric control signal is input to the laminated piezoelectric ceramics, differential action can be realized, thereby achieving both large stroke, large thrust and high precision.
Description
technical field [0001] The invention relates to the technical field of piezoelectric precision actuation, in particular to an interleaved quadruped-driven piezoelectric stepping linear motor. Background technique [0002] Piezoelectric motors are a type of energy conversion device that converts alternating electrical signals into vibrations of motor-driven feet through the inverse piezoelectric effect of piezoelectric materials, and then converts micro-vibrations into motions of motor movers or rotors through friction. According to the vibration state of the piezoelectric motor stator, it is divided into two types: resonance (ultrasonic motor) and non-resonance. Non-resonance piezoelectric motors include inertial type, inchworm type, and differential type according to the operating mode. Among them, the performance parameters of the inertial piezoelectric motor change when the load changes, which is suitable for occasions where the load is constant or changes little; the inc...
Claims
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IPC IPC(8): H02N2/02
CPCH02N2/021
Inventor 王寅王国顺黄卫清范伟
Owner HUAQIAO UNIVERSITY