带式输送机鼓式制动器制动片摩擦系数的研究  

Research on Friction Coefficient of Brake Block of Drum Brakes on Whole Belt Conveyor

作　　者：李保元[1,2] 郭红波 

机构地区：[1]河南科技大学材料科学与工程学院,河南洛阳471003 [2]河南省耐磨材料工程技术研究中心,河南洛阳471003 [3]洛阳高科钼钨材料有限公司,河南洛阳471003

出　　处：《煤矿机械》2015年第2期77-79,共3页Coal Mine Machinery

摘　　要：制动片摩擦系数的变化影响到整个带式输送机鼓式制动器制动的安全,采用试验方法开展研究。通过CFT-Ⅰ材料表面综合测试仪分析了制动压力和制动速度对摩擦系数的影响,并用扫描电镜对摩擦试样的表面情况进行观察分析。研究结果表明:摩擦系数随着时间的增加先增加后减小,制动压力大于50 N会导致摩擦系数大幅度降低,制动速度对摩擦系数的影响不大,摩擦系数受温度影响很大。The change of friction coefficient of brake block affect the safety of drum brakes on the whole belt conveyor, the research on it is adopted by the method of experiment. Through the CFT- Ⅰmaterial surface comprehensive tester, the effect of the brake pressure and brake speed on the friction coefficient is analyzed, and the surface condition of friction sample is observed and analyzed by using scanning electron microscopy（SEM）. The research results show that the friction coefficient increase？firstly and then decrease with time; it will greatly reduce when the brake pressure after 50 N; it does not much affected by the brake speed, but highly affected by the temperature.

关 键 词：摩擦系数 鼓式制动器 带式输送机 摩擦试验 

分 类 号：TD528[矿业工程—矿山机电]