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1.改进原因某型轮式吊运机容易发生卷扬机卷简离合器意外脱开及断轴等机械故障,由此造成吊钩自由下落,甚至导致伤人事故。为解决轮式吊运机发生上述故障后产生的自由落钩问题,消除安全隐患,我们对卷扬机电控及液压系统进行了改进。2.改进方案通过对卷扬机的机、电、液系统进行分析,确定改进的总体思路是在其电控系统增加应急制动装置,并在其液压系统增加1组制动器和相应的液压元件。具体改进方法如下所述。
1. Improvement Reason A type of wheeled lift hoist prone to accidentally disconnect the winch coil clutch and broken shaft and other mechanical problems, resulting in free fall hook, and even lead to injuries. In order to solve the problem of free-fall caused by the above-mentioned failure of the wheel lift machine and eliminate the potential safety hazard, we improved the electric control and hydraulic system of the winch. 2. Improvement program Through the analysis of the winch machine, electricity, liquid system, to determine the general idea of improvement is to add emergency braking device in its electronic control system, and in its hydraulic system to add a set of brakes and the corresponding hydraulic components. Specific improvements are as follows.