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推导搅拌车筒体非等变角螺旋线方程,并讨论其变化规律。推导得出的非等变角螺旋线可以在螺旋线的起点和终点的螺旋角β1和β2一定的情况下,在适当的范围内,通过改变参数k或θmax的取值来调整螺旋线的疏密,控制螺旋线的长度,为螺旋叶片的优化设计提供一种值得探讨的思路,另外,该螺旋线也可以通过给定的θmax值调整β1和β2的取值,得到不同的曲线。
The non-isotropic spiral equation of the drum is deduced and its variation is discussed. The non-isotropic spiral can be derived by adjusting the values of parameter k or θmax within the appropriate range under the certain conditions of helix angles β1 and β2 at the start and end of the helix, Dense and control the length of the helix, which provides a worthy discussion for the optimal design of the helical blade. In addition, the helix can also be adjusted by adjusting the values of β1 and β2 for a given value of θmax to obtain different curves.