三轴瓦主轴轴承曲率半径的研究

Research on Curvature Radius of Main Shaft Bearing with Triple Shaft

对三轴瓦主轴轴承润滑理论进行了分析研究，得出合理的轴瓦曲率半径，其半径等于主轴颈半径加上４．４倍轴承最小间隙，并作了试验验证，解决了三轴瓦主轴轴承抱轴、烧瓦的技术难题。

A reasonable curvature radius of shaft bush is obtained through analysing and studing lu-brication theory of main shaft bearing with triple shaft bush. It equals to the radius of main shaft jour-nal plus 4. 4 times minimal gap of shaft bearing. The examination is done. The difficult technical sub-jects about shaft bush burnt and shaft held to the main shaft bearing with triple shaft bush are solved.