MS-3型自动过载限制器的维护与调整

Maintenance and adjustment of the MS-3 type automatic overload limiting device

本文介绍日本加藤NK-400E型汽车起重机的过载保护装置—MS-3型自动过载限制器的工作原理,它根据臂架的四种不同工况,将与探针接触的凸轮分四个象限。文章分析了此类限制器的常见故障,并对其检查与调整方法作了介绍。

This paper introduces, the operation principle of MS-3 type automatic overload limiting device, equipped on the Japanese Kato NK-400E type truck crane. It divides the cam into four quadrants according to four different working conditions of the boom, the cam being contacted with detecting fingers. This paper analyses the common troubles occured in this kind of limiting device, and introduces the method of inspection and adjustment.