修理车床时,为了拆装溜板箱,过去总是使用车间的起重设备,同时采用各种垫板与支架,既费事,工效又低。采用如图所示的专用起重小车则解决了这个问题。小车的四个滚轮固定在底架3上,其中两个滚轮可以左右回转。回转滚轮轴2装在滚动轴承里,使滚轮1能自由转动。用手把5使小车回转非常容易。工作台7装在小车底架3上。用手轮4转动螺 Repair lathe, in order to dismantle the skateboard box, in the past always use the workshop lifting equipment, while using a variety of pads and brackets, both cumbersome, ergonomic and low. The use of special lifting trolley as shown in the figure solves this problem. The four trolleys of the trolley are fixed on the base frame 3, of which two trolleys can be swiveled left and right. Rotary roller shaft 2 installed in the rolling bearings, so that the wheel 1 can rotate freely. Turn the car 5 by hand very easy. Table 7 mounted on the car chassis 3. Use handwheel 4 to turn the screw