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我厂铸工车间使用的十几台天车当中,大部分采用穿在销轴上的导电铜轮,将电源从滑线传导到小车上。由于铜轮的内孔与销轴间为滑动摩擦,而且不便润滑,加上铸工车间的天车负荷率又很高,使铜轮和销轴磨损很快,使用不到半年就得更换。针对这种情况,我们将滚动轴承用到导电铜轮上(见图)。开始用在5吨电动葫芦上,经过四年使用,效果良好,不仅没有出现轴承中的滚珠烧伤等现象,却大大提高了铜轮和销轴的寿命。在每次检修
Casting plant I plant more than a dozen crane used, most of the conductive copper wheel worn on the pin, the power transmission from the slippery line to the car. Due to the sliding friction between the inner hole of the copper wheel and the pin shaft and the inconvenience of lubrication, the load factor of the crane in the casting workshop is very high, causing the wear of the copper wheel and the pin shaft to be very rapid. In this case, we use rolling bearings on a conductive copper wheel (see photo). Started to be used in 5 tons of electric hoist, after four years of use, the effect is good, not only did not appear in the bearing ball burns and other phenomena, but greatly increased the life of the copper wheel and pin. At each overhaul