Multi-degree of freedom piezoelectric actuator with built-in stator
A technology of piezoelectric actuators and degrees of freedom, applied in the direction of generators/motors, piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, etc. Uneven problems, to achieve the effect of compact structure, good contact condition and uniform pre-tightening force
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[0027] combine figure 1 , a stator built-in multi-degree-of-freedom piezoelectric driver of the present invention includes a ball rotor 3, three stator mechanisms 4 with the same structure, an output shaft 1, a preloading mechanism 6, a rolling mechanism 2, a casing 5 and a base 7; The shell 5 and the base 7 are fixedly connected by four bolts, the pre-tightening mechanism 6 is arranged in the shell 5, the lower end of the pre-tightening mechanism 6 and the inner ring of the base 7 are fixedly connected by threads, and the three stator mechanisms 4 with the same structure are arranged in the pre-tightening mechanism. 6, and are symmetrically distributed around the pre-tightening mechanism 6 with a difference of 120°, and are fixedly connected to the pre-tightening mechanism 6 through six countersunk screws. The angle between the axis of the stator mechanism 4 and the axis of the shell 5 is 72°; the ball rotor 3 It is arranged on the three stator mechanisms 4 ...
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