我们选矿車間的二台φ900×2400棒磨机自投入生产以来,棒磨筒身的进出口端中空轴承及皮带输轴的传动轴承的地脚螺絲,都曾先后折断过,有的甚至折断过五、六次之多。地脚螺絲折断的事故給生产带来了严重的影响。为了消除这类事故的发生,我們对进出口端轴承及传动轴承进行了改造工作。經过較长時間的实践证 Since we put into production two φ900 × 2400 rod mills in the dressing workshop, the hollow screws of the rod mill shaft and the ground screws of the drive shaft of the belt shaft have been broken and some have even been broken Five or six times. Breaking the ground screw accident has brought serious impact on the production. In order to eliminate the occurrence of such accidents, we import and export side bearings and drive bearings have been transformed. After a long period of practice certificate