Rotary inerter capable of realizing inertial two-stage regulation based on planetary gear mechanism

Abstract

The invention relates to a rotary inerter capable of realizing inertial two-stage regulation based on a planetary gear mechanism. The rotary inerter comprises an input shaft, planetary gears, a sun gear, a gear ring A, a gear ring B, an ECU, a sensor, a pressing device A, a pressing device B and an output shaft. When the input shaft inputs torque, the three planetary gears revolve around the sun gear, and meanwhile the planetary gears rotate. Due to the fact that the sun gear is a fixed end, torque is transmitted to the output shaft from the gear rings, and with combination with basic parameters of a system, the ECU processes the operation information data of a rotating shaft, and controls a pressing device to select different transmission routes to match with the output shaft. According to the rotary inerter capable of realizing inertial two-stage regulation based on the planetary gear mechanism, reciprocating rotation of the input shaft is converted into reciprocating rotation motion of the planetary gear mechanism, so that the inertial effect is generated, the rotary inerter is formed, and in addition, different transmission routes are selected through the pressing device to be matched with the output shaft, and then two-stage regulation of the inertia coefficient is achieved.

Description

technical field [0001] The invention relates to a transmission system, in particular to a rotary inerter which realizes two-stage adjustment of inertia mass based on a planetary gear mechanism. Background technique [0002] Professor SMITH of the University of Cambridge proposed the concept of an inerter. The research results show that the inerter can improve the vibration damping performance of the mechanical suspension, and provide a new design idea and development direction for the vibration damping system. After decades of development, the current structural realization forms of inerters mainly include rack and pinion type, ball screw type and hydraulic type. [0003] However, many scholars at home and abroad have seldom researched on rotary inerters. The concepts of through-variables and cross-variables in rotating mechanical networks are similar to electrical networks and translational mechanical networks. The terminals of the rotating elements are a pair of concentric...

AI Technical Summary

Problems solved by technology

[0006] In order to effectively solve the problem that the inertia coefficient of the inerter cannot be adjusted, the present invention proposes a rotary inerter that realizes two-stage adjustment of the inertia based on a planetary gear mechanism

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