短三瓦调位轴承能否正常使用,取决于轴瓦是否形成有收敛形油楔。轴瓦在工作时其工作面与轴颈如同两个内切圆相切,当轴瓦内圆弧面的半径r大于主轴半径R时,在轴瓦两侧总是保持有一段收敛形间隙区域δ(图1中的 BA段)。主轴运转时区域沿轴颈周向增长。同时,轴瓦绕球头螺钉作周向摆 Short three-tile adjustable bearing can be used normally, depending on whether the bush has a convergent oil wedge. When working, the working face of the bearing bush and the journal are tangent to two inscribed circles. When the radius r of the inner arc face of the bearing bush is greater than the radius R of the main shaft, a converging clearance region δ is always maintained on both sides of the bearing bush 1 in paragraph BA). When the spindle is running, the area grows in the circumferential direction of the journal. At the same time, the bush around the ball screw for the week to swing