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一、传统的液体静压丝杠螺母结构液体静压丝杠螺母机构作为机床进给传动机构虽然具有优越的性能,但其实用化的进展并不理想。重要原因之一是螺纹面的油腔及从属的节流器加工困难。在刀具难以达到的螺纹面按规定的形状和尺寸加工油腔,的确不容易。 J·H·Rumbarger发表的初期的液体静压螺母是沿螺纹两侧面中径各开一条螺旋槽,槽两头不通透,以便在螺母两端形成螺纹方向的封油面。我们称这种结构的丝杠螺母为环形油腔静压丝杠螺母,它结构简单,刚性较好,需要节流器的数量少,缺点是调心性差,瞬时负
First, the traditional liquid static pressure screw nut structure Liquid static pressure screw nut mechanism as the machine tool feed transmission mechanism with superior performance, but the practical progress is not ideal. One of the important reasons is that the machining of the screw face oil pocket and its associated restrictor is difficult. It is really not easy to machine the oil chamber in the shape and size of the thread that is difficult to reach by the tool. The initial hydrostatic nut, as published by JH Rumbarger, is a helical groove along the middle diameter of each side of the thread, impermeable to both ends of the groove to create a threaded seal surface at either end of the nut. We call this structure of the screw nut for the annular oil chamber hydrostatic screw nut, it is simple in structure, rigidity is good, the need for a small number of throttle, the disadvantage is poor self-aligning, instantaneous negative