旋转法黏度传感器的转子模型设计及分析  

Rotor Model Design and Analysis for Rotational Viscosity Sensor

作　　者：张勇[1] 朱展志 肖怡 ZHANG Yong;ZHU Zhanzhi;XIAO Yi(School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou Guangdong 510000,China)

机构地区：[1]华南理工大学机械与汽车工程学院,广东广州510000

出　　处：《机床与液压》2021年第4期78-82,共5页Machine Tool & Hydraulics

摘　　要：润滑油在机床、液压等装置中起润滑、清洁等作用。随着机床和液压装置运行,润滑油的品质随之下降,润滑油黏度也会不断降低。为避免引起机床的故障,应在润滑油达到换油指标之前更换润滑油。基于旋转法设计的黏度传感器,转子部分是其核心部件,它的受力情况直接决定了传感器的最终检测效果。基于流体力学基础知识,结合Fluent仿真试验,分析转子所受的黏滞力矩,并结合电机的工作参数得到转子在不同温度、不同黏度下的受力情况,以及此时通过电机的电流大小,从而得到最优的转子结构。Lubricating oil in machine tools,hydraulic devices plays the role of lubrication,cleaning,etc.With the operation of machine tools and hydraulic devices,the quality of lubricating oil decreases,and the viscosity of lubricating oil also decreases.In order to avoid machine failure,lubricating oil needs to be replaced before reaching the oil change index.For the viscosity sensor designed based on rotation method,the rotor is its core component,and its stress condition directly determines the final detection effect of the sensor.Based on the basic knowledge of fluid mechanics,combined with the Fluent simulation experiment,the viscous torque of the ro⁃tor was analyzed.And combined with the working parameters of the motor,the force of the rotor at different temperatures and viscosity was obtained,as well as the current through the motor at this time,so as to obtain the optimal rotor structure.

关 键 词：润滑油 黏度传感器 旋转法 转子结构 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]