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我校在高速磨床与磨削的研究中,采用了三块超短轴瓦动压轴承,这种轴承自位性能好,温升低,结构简单,制造容易,对于一般高速外圆磨床和一般低速普通磨床还是可用的。但它的缺点是轴承间隙不够稳定,主要原因是球头螺钉的球面及螺纹连结处接触刚性较差。液体静压轴承接触刚性很高,能适应高精度、高效率重型机床主轴系统的要求。在我国广泛采用的定压式静压轴承中,不管是固定节流(如小孔节流、毛细管节流),或是可变节流(如薄
Our high-speed grinding and grinding in the study, the use of three ultra-short bearing dynamic pressure bearings, this bearing self-performance, low temperature rise, simple structure, easy to manufacture, for general high-speed cylindrical grinding machine and the general low speed Ordinary grinder is still available. But its disadvantage is the bearing gap is not stable enough, the main reason is the spherical ball screw and screw connections less rigid contact. Hydrostatic bearing contact with high rigidity, to adapt to high precision, high efficiency heavy machine spindle system requirements. In our country is widely used fixed-pressure hydrostatic bearings, whether it is fixed throttling (such as orifice throttling, capillary throttling), or variable throttling (such as thin