针对电梯安全钳制动过程中温升会影响钳块制动性能的问题,对菱形表面安全钳制动过程温升测量进行了研究.通过钳块材料性能及热物性参数试验,得到了弹性模量、热膨胀系数、热传导系数和比热容随温度变化的值,利用Hypermesh划分模型网格,并在钳块上定义了速度和压力幅值曲线,利用Abaqus对钳块与导轨间摩擦生热进行了仿真,得到了不同载荷及速度下钳块表面最高温升分布;通过试验塔、热电偶及温度记录仪进行了制动温升测量试验,得到了不同载荷及速度下温度的变化,并对仿真结果与试验结果进行了分析.研究结果表明:额定速度在2.5m/s以下,用 J型热电偶测得的最高温度与仿真结果基本相符.%Aiming at the problem that during the braking process of the elevator safety gear,the braking performance affected by the tempera-ture rise,the measurement of temperature rise during braking process of diamond surface safety gear was studied. The material properties and thermal parameters of the block was tested,the values of modulus of elasticity,thermal expansion coefficient,thermal conductivity and spe-cific heat change with temperature were obtained,the grids of model was divided by Hypemesh,the velocity and pressure amplitude curves were defined on the block,the friction generates heat between block and guide rail was simulated by Abaqus,the maximum surface tempera-ture distribution of clamp block under different loads and speeds were obtained. The test of measurement of braking temperature rise was car-ried out by test tower,thermocouple and temperature recorder,the temperature changes under different loads and speeds were obtained,the simulation results and test results were also analyzed. The results indicate that the rated speed below 2.5 m/s, the J thermocouple is used and the maximum temperature measured is the same as the simulation result.
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