高温环境下的轴承保持架转速非接触测试方法
Non-contact Test Method for Bearing Cage Speed at High Temperature
郭忠坤 1李晨1
作者信息
- 1. 中北大学省部共建动态测试技术国家重点实验室
- 折叠
摘要
滚动轴承是发动机、燃气轮机等设备中的重要旋转部件,需要长期工作在高温环境中.为了预防轴承打滑,减少轴承损伤及失效,需要实时获取高温环境下的轴承保持架转速参数.文中提出了一种基于涡流效应的耐高温转速传感器,使用耐高温线绕制传感器探头,通过周期性改变轴承保持架与探头的距离实现保持架转速的测量.搭建高温转速平台进行测试,验证了传感器的可行性,实现了高温时轴承保持架转速的非接触测量.结果表明:在 300℃高温环境中,转速传感器的最大非线性误差为0.511%,最大重复性误差为0.771%.
Abstract
Rolling bearings are important rotating components in engines,gas turbines and other equipment,which need to work in high-temperature environments for a long time.In order to prevent bearing slippage and reduce bearing damage and fail-ure,it is necessary to obtain the rotational speed parameters of the bearing cage in a high-temperature environment in real-time.A high-temperature rotational speed sensor based on the eddy current effect was proposed,which used high-temperature resistant wire to wind the sensor probe and the measurement of cage rotational speed by periodically changing the distance between the bearing cage and the probe was realized.A high-temperature rotational speed platform was built for testing to verify the feasibility of the sensor and the non-contact measurement of bearing cage rotational speed at high temperatures was realized.The results show that the maximum nonlinearity error of the rotational speed sensor is 0.511%,and the maximum repeatability error is 0.771%in the high-temperature environment of 300℃.
关键词
耐高温/轴承保持架/转速传感器/涡流效应/非接触测量Key words
high temperature resistance/bearing cage/speed sensors/eddy current effect/non-contact measurement引用本文复制引用
基金项目
国家自然科学基金项目(52275552)
中国航空发动机集团产学研合作项目(HFZL2020CXY019)
中央引导地方科技发展基金项目(YDZJSX2022C007)
天津大学精密测量技术及仪器国家重点实验室项目(pilab2206)
出版年
2024
NETL
NSTL
万方数据