喷油润滑旋转齿轮接触式和非接触式在线测温试验设计  

Experimental design of contact and non-contact on-line temperature measurement of oil-jet-lubrication and rotating gear

作　　者：王琳[1,2,3] 杜泽恺[1] 郑志振 苏华 陈国定[1,2,3] WANG Lin;DU Zekai;ZHENG Zhizhen;SU Hua;CHEN Guoding(School of Mechanical Engineering,Northwestern Polytechnical University,Xi’an 710072,China;National Center for Virtual Simulation Experimental Education of Mechanical-Fundamentals and Aeronautical Manufacturing,Northwestern Polytechnical University,Xi’an 710072,China;National Demonstration Center for Experimental Mechanical-Fundamentals Education,Northwestern Polytechnical University,Xi’an 710072,China)

机构地区：[1]西北工业大学机电学院,陕西西安710072 [2]西北工业大学机械基础国家级实验教学示范中心,陕西西安710072 [3]西北工业大学机械基础与航空制造国家级虚拟仿真实验教学中心,陕西西安710072

出　　处：《实验技术与管理》2022年第11期11-15,共5页Experimental Technology and Management

基　　金：国家自然科学基金项目(51975475);教育部新工科研究与实践项目(教高厅函[2018]17号);西北工业大学实验核心课程项目(201906)。

摘　　要：齿面温度分布是评价齿轮传动系统的热量管理和润滑设计的关键指标之一,开展齿轮表面温度试验测量是齿轮传动系统研究的重要内容。针对旋转齿轮表面温度实时在线测量的需求,该文设计了一种基于接触式热电偶和非接触式红外测温仪的喷油润滑旋转齿轮轮齿端面温度测量试验台。在该设计中热电偶焊接在轮齿端面上并随齿轮一同旋转,其测温值通过固定在待测齿轮轴端的无线发射器传输到外部接收集中器;在红外测温仪的前端设计并连接了一种用于吹除红外测温光路上油雾的空气吹扫装置,以降低试验箱中的油雾等杂质对红外测温结果的影响。试验结果表明:热电偶和红外测温仪两种方法在3种旋转速度条件下均可以有效地测量喷油润滑齿轮的轮齿表面温度,且两种方法的测温最大差值不超过5℃。该试验的测量方法和分析结论对于复杂工况下齿轮传动系统的设计分析和测试验证都具有较好的参考价值。The temperature distribution of gear tooth surface is one of the key indicators for evaluating the thermal management and lubrication design of gear transmission system, and the experimental measurement of gear surface temperature has become an important part of gear transmission system research. In view of the need for real-time and on-line measurement of surface temperature of rotating gears, this paper designs a transverse plane of oil-jet-lubrication rotary gear temperature measurement test rig based on contact thermocouple and non-contact infrared pyrometer. In this design, the thermocouple is welded to the transverse plane of the rotating gear and rotates with it, and the temperature measurement value is transmitted to the external receiving concentrator through a wireless signal transmitter fixed at the end of the measuring gear shaft. An air-purging tube for blowing out the oil mist on the infrared temperature measuring optical path is designed and connected to the front end of the infrared pyrometer, which is used to reduce the influence of oil mist and other impurities in the test chamber on the infrared temperature measurement results. The experimental results show that the two methods of thermocouple and the infrared pyrometer can effectively measure the teeth surface temperature of oil-injected lubrication gear under three different rotating speeds, and the maximum temperature difference between the two methods is not exceed 5 ℃. The measurement methods and analysis conclusions of this test have good reference value for the design analysis and test verification of gear transmission system under complex working conditions.

关 键 词：喷油润滑 齿轮 温度测量 热电偶 红外测温仪 

分 类 号：TH132.4[机械工程—机械制造及自动化] G642.0[文化科学—高等教育学]