By taking 135 three-screw pump as an example, the geometric parameter design, the forming of spiral surface and the characteristic of screw gearing are investigated.
以135型三螺杆泵为例，对螺杆几何参数设计、螺旋型面的形成、螺杆啮合特性进行了探讨。
2
Spiral bevel gear is important transmission fundamental component applied in modern gearing.
螺旋锥齿轮是现代传动系统中的重要部件。
3
It USES spiral to feed the material, and the feed gearing is suitable for a comparatively worse fluidity of powdery material.