油腔结构对高速动静压轴承性能的影响

研究了四种不同油腔形状的高速液体动静压轴承。研究内容包括轴承润滑油流量、承载能力、刚度、涡动频率,这四种油腔结构轴承分别是正方形油腔,三角形油腔、圆形油腔、角向小孔轴承。通过对这四种轴承性能比较出现,角向小孔轴承具有最优良的性能。将会在高速主轴单元中得到广泛应用。

Different Geometric Configurations Research of High Speed Hybrid Bearings

In this paper,four hybrid bearings having different geometric configurations were analyses for their static and dynamic characteristics, including flow rate, load capacity, stiffness, and whir frequency ratio. The four bearings included a square- recess bearing, a circular recess bearing, a triangular - recess bearing, and an angled - orifice bearing. Comparisons of the results were made between bearings, the angled- orifice bearing has the most favorable overall performance and has good applications in high speed spindle.