一、桥式起重机滑线托改进 早期生产的桥式起重机滑线都是在角钢上移动滑托,实现向小车上送电。近几年新出产的桥式起重机采用异形管内走小滑车(见图1),拖动电缆向小车送电。这种形式很好,既减轻车体自重,节省钢材,外观又美观。但是异形管不易买到,经过研究,我们采用无缝钢管代替(见图2),现已改造了两台20/5吨桥式吊车,两年来使用一直良好,未出现任何故障。 First, the improvement of the bridge crane slip line Early production of the bridge crane slide line are moving on the angle slip bracket, to achieve the power transmission to the car. In recent years, the newly produced overhead cranes use a small pulley within the tube (see Figure 1), drag the cable to the car delivery. This form is very good, not only to reduce body weight, save steel, the appearance of beautiful. But shaped tubes are not easy to buy. After research, we use seamless steel tubes instead (see Figure 2). We have now renovated two 20/5 ton bridge cranes, which have been in good use for two years without any problems.