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我厂生产的万能外圆磨床MMB1420主轴的密封,原来采用单唇密封圈,不能防止外界砂粒、磨屑侵入主轴密封处,在主轴高速回转中磨损主轴,造成轴端严重泄漏,甚至主轴报废。为此,我厂与上海爱建公司橡胶分厂合作,设计制造了双唇油封,这种油封的内唇密封主轴箱中的润滑冷却油,外唇起隔离砂粒和磨屑进入密封区内的作用。同时,主轴封油面光洁度从▽8提高到▽11,减少磨损,采用合成橡胶Ⅰ-2等。经试验取得了良好的效果。
I produced a universal cylindrical grinder MMB1420 spindle seal, the original single-lip seals, can not prevent the outside sand, wear debris invade the spindle seal at the spindle wear high-speed spindle, resulting in serious shaft shaft leakage, and even the spindle scrapped. To this end, I love the plant in Shanghai and I love the rubber factory cooperation, design and manufacture of double lip seal, the seal of the lip lubrication of the cooling oil in the headstock, the outer lip from the grit and debris into the seal area effect. At the same time, the spindle seal oil surface finish increased from ▽ 8 to ▽ 11, reducing wear and tear, the use of synthetic rubber Ⅰ-2 and so on. The test has achieved good results.