面向齿轮箱内部旋转元件的无线携能传感系统

Wireless sensing system with simultaneous power transferfor internal rotating components in gearboxes

针对齿轮箱智能运维技术中面临的旋转元件动态运行状态难以直接实时测量的难题,构建了一种基于无线携能通信(simultaneous wireless power and information transfer, SWPIT)的旋转元件状态传感系统。设计了系统电路拓扑结构,通过理论计算分析了齿轮箱内部金属元件对传感系统电路参数的影响规律,并使用有限元方法探究了金属齿轮对传感系统中线圈参数的影响,获得了各线圈在系统中的最佳安装位置;此外,设计了传感系统的电能传输、全双工通信电路的实现方案,并开展了齿轮箱内部元件状态采集实验。本系统为旋转设备内部元件运行状态的监测奠定了技术基础。

To address the difficulty in direct real-time measurement of the dynamically operating status of rotating components in gearbox intelligent operation and maintenance technology,a sensing system for rotating components based on simultaneous wireless power and information transfer(SWPIT)was developed.The system circuit topology was designed,and the impact of internal metal components in the gearbox on the circuit parameters of the sensing system was analyzed through theoretical calculations.Additionally,finite element methods were used to investigate the effect of metal gears on the coil parameters of the sensing system,determining the optimal installation positions for each coil within the system.Furthermore,the power transmission of the sensing system and the full-duplex communication circuits were designd.Experimental trials were conducted to collect the status of internal components within the gearbox.This system lays a technical foundation for monitoring the operating status of internal components in rotating equipment.