我厂有几台3724平面磨床,因经常磨削合金钢模块,吃刀深度大,每次吃刀在 0.1mm以上,由于前轴瓦9承受压力过大,所以主轴8经常抱死(见图1)。遇到这种情况只好将主轴等零件拆下来,对轴瓦内孔进行刮削。如果主轴轴颈因高温抱死而产生裂纹,则只好另换一根新主轴,不但增加修理费用,而 I plant a few 3724 plane grinder, grinding steel alloy often because of the module, eat a large depth of knife, each eat a knife at 0.1mm above, due to the front bearing 9 to withstand excessive pressure, so the spindle 8 often lock (see Figure 1 ). Encountered this situation had to demolish the spindle and other parts, the bearing bore scraping. If the spindle journal cracks due to high temperature lock, then had to change a new spindle, not only increase the cost of repairs, and