大型机械部件传动空心轴用液压联轴器内外套壁厚设计的研究

船用空心轴在保证传动不发生变化情况下,可以减轻传动轴重量及传动惯性,但在装配时空心轴会出现液压联轴器内套受力变化不均,在设计液压联轴器时无法准确设计内、外套的壁厚。论文研究液压联轴器内套内压力p沿轴向的变化规律,为以后设计设计内、外套的壁厚打下理论基础。用SAS软件来分析空心轴外侧所受液压联轴器的内套的压力回归曲线并进行数据采集处理,利用高斯曲线的数学模型,算出液压联轴器内套内压力p沿轴向的变化规律方程,理论值和实测压力比较,研究了空心轴外侧压力与径向变形位移比值的变化发展趋势。理论压力值与实际压力p值基本相同,空心轴外侧压力与径向变形位移比值的变化发展趋势回归方程实际效果良好可以用来指导生产,为液压联轴器的内、外套壁厚设计提供理论支撑。

Research on Wall Thickness Design of Inner and Outer Sleeves of Hydraulic Coupling for Large Mechanical Components Transmission Hollow Shaft

The marine hollow shaft can reduce the weight and transmission inertia of the transmission shaft under the condition of ensuring that the transmission does not change. However,during assembly,the inner sleeve of the hydraulic coupling will experience uneven stress changes,and the wall thickness of the inner sleeve and the outer sleeve cannot be accurately designed during the design of the hydraulic coupling. This paper studies the variation rule of pressure p in the inner sleeve of hydraulic coupling along the axial direction,laying a theoretical foundation for the design of the wall thickness of the inner and outer sleeves in the future.SAS software is used to analyze the pressure regression curve of the inner sleeve of the hydraulic coupling on the outer side of the hollow shaft,and data collection and processing are carried out. Using the mathematical model of Gaussian curve,the variation law equation of the pressure p in the inner sleeve of the hydraulic coupling along the axial direction is calculated. The theoretical value is compared with the measured pressure,and the variation and development trend of the ratio of the outer pressure of the hollow shaft to the radial deformation displacement is studied. The theoretical pressure value is basically the same as the actual pressure p value,and the regression equation of the change development trend of the ratio of the outside pressure of the hollow shaft to the radial deformation displacement has good actual effect,which can be used to guide the production and provide theoretical support for the design of the inner and outer wall thickness of the hydraulic coupling.