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轴向刚度及径向刚度是液体静压丝杠螺母的重要性能,本文讨论椭圆形油腔静压丝杠螺母刚度的计算方法和测量方法,并将其与传统的环形油腔及多油腔静压丝杠螺母的刚度加以比较。一、刚度的理论探讨对椭圆形油腔静压丝杠螺母,我们已做过介绍(见《一种容易制造的多油腔静压丝杠螺母》,《机床与液压》,1986年第4期),为了便于后面的叙述与理解,我们首先回顾一下它的结构,见图1静压丝杠螺母结构示意图。由图可知,该种结构静压螺母的浅槽式节流器相当于毛细管节流器,从节流器钻有小直径的供油孔通到梯形螺纹面,供油孔在螺纹面上形成的椭圆
The axial stiffness and radial stiffness of the hydrostatic screw nut is an important performance, this article discusses the oval-shaped hydrostatic screw nut stiffness calculation method and measurement methods, and its traditional annular oil and multi-oil cavity Static pressure screw nut stiffness to be compared. I. Theoretical Discussion of Stiffness For the oval-shaped hydrostatic screw nut, we have described it (see “An Easy-to-Manufacture Multi-Hydrostatic Screw nut”, “Machine Tools and Hydraulics”, 1986, No. 4 Period), in order to facilitate the description and understanding of the back, we first review its structure, see Figure 1 static pressure screw nut structure diagram. It can be seen from the figure that the shallow grooved throttler of the static pressure nut of the structure is equivalent to the capillary restrictor, the small diameter oil hole is drilled from the throttle to the trapezoidal thread surface, and the oil supply hole is formed on the thread surface Oval