必须提供手段保持从动件与凸轮表面接触。
Means must be provided for keeping the follower in contact with the cam surface.
这通常涉及使用弹簧或两个认真协调凸轮表面。
This usually involves the use of a spring or of two carefully coordinated cam surfaces.
凸轮从动总是接触凸轮表面的单点或沿一条直线上。
The cam follower always contacts the cam surface at a single point or along a single line.
应用推荐