通过对采用平面楔合面内星轮的超越离合器的受力及摩损对其使用可靠性影响的分析 ，从而提出了用对数螺旋楔合面代替平面楔合面的设计方案 ，并对两种方案进行了比较。

So the autor proposed a new design project use logarithmic helicoid instant of planar plane of action and at the same time this two project were compared in detail.

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本文详细研究了不同旋向楔横轧成形螺旋面在不同坐标下的方程。

The equations of different helix in cross wedge rolling in different coordinates were studied in this paper.

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