Integrated active-vibration-isolation actuator

Abstract

The invention relates to an integrated active-vibration-isolation actuator and belongs to the technical field of ship vibration and noise reduction. The actuator mainly comprises a shell, a rotary servo motor, a transmission mechanism, an output shaft and an output shaft sleeve and is characterized in that the rotary servo motor and the transmission mechanism are mounted inside the shell, the transmission mechanism is connected with the rotary servo motor and the output shaft, the rotary servo motor drives the output shaft through the transmission mechanism, the rotation of the output shaft islimited by the coordination of the output shaft and the spline of the output shaft sleeve, and the output shaft can only move linearly. The integrated active-vibration-isolation actuator has the advantages that high-precision closed loop control of the rotary servo motor is sufficiently utilized, the problem that the output force of a linear motor is instable and nonlinear is solved, the rotationof the servo motor is converted into the linear movement of a driven wheel and the output shaft through the coordination of the transmission mechanism, and the actuator is simple in structure, low incost and high in adaptability to different application working conditions.

Description

technical field [0001] The invention relates to an integrated active vibration isolation actuator, which belongs to the technical field of ship vibration reduction and noise reduction. Background technique [0002] Vibration and noise reduction on ships has attracted more and more attention in recent years, and it is also a key issue that needs to be solved urgently. For surface ships, vibration reduction and noise reduction is conducive to improving the safety of equipment on board and reducing air noise in cabins; for underwater ships, vibration reduction and noise reduction are closely related to acoustic stealth performance. Harmful vibrations on ships include mechanical equipment vibrations, fluid vibrations, and hull vibrations caused by hydrodynamic forces, among which the vibrations of ship power machinery account for a large proportion. [0003] In the field of ship vibration and noise reduction technology, in order to reduce the harm caused by the vibration of pow...

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Problems solved by technology

[0005] Aiming at the defects of current actuators driven by motors, the present invention provides an integrated active vibration isolation actuator, which makes full use of the high-precision closed-loop control of rotary servo motors to solve the problem of unstable and nonlinear output force of linear motors. Problem, the integrated design of the rotary driving force generating unit and the linear power conversion unit has a simple structure, high integration, and strong adaptability to different working conditions

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