论文部分内容阅读
凸轮升程和相位角通常由光学分度头和卧式测长仪配合进行测量,根据凸轮的曲线函数,利用仪器找到凸轮升程“最佳”零点,按照凸轮升程表,逐点或按选择点测量升程。相位角为凸轮轴上各凸轮桃尖间夹角。本文就此种方法,对凸轮升程和相位角的测量精度进行分析。一、测量升程的精度分析 1.每一凸轮升程h与凸轮转角α,测头曲率半径r_p之间存在函数关系,其通式为:
The cam lift and phase angle are usually measured by the optical dividing head and the horizontal length measuring instrument. According to the curve function of the cam, the “best” zero point of the cam lift can be found by the instrument. According to the cam lift table, Select point to measure lift. The phase angle is the angle between the cams and peaches on the camshaft. In this paper, this method, the accuracy of cam lift and phase angle analysis. First, the accuracy of lift measurement accuracy 1. Each cam lift h and the cam angle α, the radius of curvature of the probe r_p there is a functional relationship between the general formula: