低压铸造电动机壳螺旋水道砂芯清理机设计

新能源电动客车的电动机壳内部设置有中空螺旋循环水道。采用热芯盒树脂砂工艺低压铸造成型时,机壳铸件内部的螺旋环绕分布使粘结在铸件内壁的砂芯难以清理。通过应用SolidWorks软件进行力学分析,改变了传统单一手段清砂方法,研究设计出振动、翻转、气冲和高压水冲洗共同混合作业的水冷机壳专用清砂机械,达到彻底清砂的目的,提高了电动机壳低压铸造的质量和效率。

Design of Sand Core Cleaning Machine for Low Pressure Casting Motor Shell Spiral Waterway

There is a hollow spiral circulation waterway in internal structure of the motor shell for the new energy electric bus. When low pressure casting of motor shell was performed using the hot core box resin sand process,the spiral distribution made core sand in the inner wall of shell castings difficult to be cleaned. Through the mechanical analysis using SolidWorks software, a special sand-cleaning machine for water cooling motor shells was designed. The machine can be used for mixing operation of vibration, flip, gas flushing and highpressure flushing, which changes the traditional method of cleaning sand by single means, achieves the aim of thoroughly cleaning sand, and improves the quality and efficiency of low pressure casting of motor shell.