论文部分内容阅读
在凸轮的大小受到限制的地方,要快速获得升程,往往使升程角超过许可范围。下面两种凸轮结构较好地解决了这个问题。如图1所示。在凸轮轴上和轴垂直方向设置能够滑动的凸轮,其下部由一固定滚子支承,上部与从动滚子相接触,在这个二重凸轮工作的时候,凸轮一边转动、一边向上方移动。可见,从动件的升程除了接触凸轮上升部分之外,凸轮本身的上升部分也要加在一起,所以就快速地获得了升程。如图2所示,轴向能够滑动的圆柱凸轮,通过
Where the size of the cam is limited, rapid lift gain tends to overshoot the lift angle. The following two kinds of cam structure to better solve this problem. As shown in Figure 1. A cam capable of sliding is provided on a camshaft and in a direction perpendicular to the shaft. The lower part of the cam is supported by a fixed roller. The upper part is in contact with the driven roller. When the double cam is operated, the cam moves upward while rotating. Visible, the follower of the lift in addition to contact with the rising part of the cam, the cam itself, the rising part of the need to add together, so you quickly get the lift. Shown in Figure 2, the axial sliding cylinder cam, through