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一、概述滑动密封轴承三牙轮钻头是近年来钻头生产中的一种新产品,它成倍地提高了钻头的使用寿命和总进尺。在这种钻头中,为了减少滑动轴承付之间的摩察和增加润滑使之有良好的导热性及抗咬合性能,从而进一步提高钻头的使用寿命,因此在滑动轴承的表面上镶嵌有减磨合金。为此,首先要在牙轮内孔大轴承表面上加工出若干道两端不通的纵向矩形盲槽,然
First, an overview of the sliding seal bearing Three roller bit in recent years bit production in a new product, which doubled the life of the drill and the total footage. In this kind of drill, in order to reduce friction between the sliding bearings to pay and increase the lubrication so that it has good thermal conductivity and anti-seizure performance, thereby further improving the service life of the drill, the sliding bearing surface inlaid with anti-wear alloy. To this end, first of all in the roller cone bore a large number of surfaces processed into a number of blind ends of the longitudinal rectangular blind,