Wet Friction Pair Temperature Test System of CT Module of UMT Tribolab Testing Machine
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摘要: 湿式离合器是机械传动系统核心部件, 热损伤是其主要失效形式, 对于摩擦副接触面瞬时温度的测量是研究此类问题的关键。本文针对在旋转滑摩过程中接触面实时温度难以测量的现状, 利用在摩擦片径向不同深度布置温度传感器的方法, 设计了基于UMT Tribolab摩擦磨损综合试验机的湿式摩擦副试验实时测温系统, 提出了温度测试方法与详细实验方案。实验数据表明, 测试系统能够实现在摩擦副相对滑摩过程中, 对摩擦接触表面不同位置的瞬时温度进行实时测量和采集, 为湿式摩擦副热分析提供了可靠的试验方法和测试数据。
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关键词:
- 湿式摩擦副 /
- UMT Tribolab /
- 接触面瞬时温度 /
- 实时测温系统
Abstract: The wet friction pair is the core component of the mechanical transmission system. Thermal damage is the main failure mode. The measurement of the instantaneous temperature of the friction pair contact surface is the key to research this kind of problem. The real-time temperature measurement system of wet friction pair test based on UMT(Universal Mechanical Tester) friction and wear comprehensive testing machine is designed by arranging temperature sensors at different depths in the radial direction of the friction plates, and a temperature test method and a detailed experimental plan are proposed, which is aimed at the current situation that the real-time temperature of rotating contact surface is difficult to measure. Experimental data shows that the test system can realize the real-time measurement and acquisition of the temperature at different positions of the friction interface in the friction-sliding process, which provides a reliable test method and data for the wet friction pair thermal analysis. -
表 2 温度传感器参数
名称 参数 类型 细丝K型(镍铬-镍硅)铠装的热电偶 测温探针 直径0.5~1 mm, 长100 mm 温度补偿导线 长1 500 mm 响应时间 5 ms 可承受瞬时高温 1 300 ℃ 热电偶输出信号 4~20 mA电流 
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