目前,钢厂设备主要沿用密封圈密封及毛毡密封,这种密封方式有效期短、密封性能差、泄漏严重、维护困难。且由于密封圈及毛毡直接与轴颈接触,引起轴颈磨损严重,致使润滑油耗量大,设备、部件的修复工作量大,使用寿命短。为解决这一问题,我厂在500轧机人字齿轮座(图1)上采用了螺旋密封,介绍如下。 At present, the main equipment used in steel mills sealing ring and felt seal, this seal is valid for a short period, poor sealing performance, serious leakage, maintenance difficulties. And because the seals and felt directly contact with the journal, causing journal wear serious, resulting in large consumption of lubricating oil, equipment, parts repair workload, short service life. In order to solve this problem, our factory adopted a screw seal on the 500-roller herringbone gear seat (Figure 1). The introduction is as follows.