某高速自动机冷却系统分析

Cooling System Analysis of High-speed Automatic Machine

针对某高速自动机在连续工作过程中,由于主要受热部件持续受到热冲击,产生了严重的热效应,导致了机构工作效率急剧下降、甚至失效。根据前期实验所获得的相关数据,结合热力学第一定律以及伯努力方程相关理论知识,进行了冷却系统的理论计算和结构尺寸的确定,得出了单次射击时主要部件的吸热量,并综合考虑了冷却液缸体缸径、喷嘴口径以及喷嘴反作用力的相互关系,确定了主要冷却构件的最佳尺寸。该分析方法和结论对于解决高速自动机的热效应问题以及冷却系统设计有着一定的参考意义。

Due to the main components of high-speed automatic machine constantly suffering form thermal shook during continuous working process, the serious thermal effect occurs and its working efficiency declines sharply, even then its working failure. According to preliminary experimental data obtained and combined with first law of thermodynamics and wave equation, theoretical calculation and main structural dimension of the cooling system is determined and the heat absorption of the main heating components during single shot is obtained. What＇ s more, the paper comprehensively conseders the relationship of cylinder bore, nozzle caliber and nozzle reaction force, to determine the optimal size of the main components. The analysis method and conclusions is of important reference value to solving the thermal effect of the high-speed automatic machine and designing the cooling system.