干渉を考慮したスクリューロータホブの設計法 : 第4報, ホブ基礎ねじの輪郭を与えてスクリューロータの輪郭を求める方法

概要

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A precise analysis has been made for a method to obtain a profile of the thread surface of the screw rotor which is cut by using the given profile of a hob, especially in the case where the basic thread profile of the hob is given as a series of dispersive points. Firstly, it is clarified that under certain circumstances a singular point (a cusp) will occur on the thread profile of the screw rotor corresponding to the basic thread profile of the hob, and that, because of the cusp, the interference phenomenon will occur on the thread surface of the screw rotor. Secondly, numerical analyses are proposed to determine the interference by using a conditional equation of the cusp and to obtain a profile of the thread surface of the screw rotor. Then, the theories in this analysis are verified by applying the above numerical analyses to the dimensions of a pair of screw rotor hobs.
社団法人日本機械学会の論文
1998-05-25