滚子推杆凸轮机构中滚子转动中心的轨迹连线。
拆解报废的发动机就会发现推杆无一例外地存在严重的麻坑及从凸轮轴凸轮脱落的金属磨屑。
On stripping down a damaged motor, the tappets are invariably found to be heavily pitted and bits of metal broken off the camshaft lobes.
提出了根据凸轮的测量数据，通过计算机分析处理，找出推杆从动件的运动规律，获得凸轮的理论轮廓曲线的方法。
Based on the measured data of a CAM, the computer can analyze and find out the movement regularity of the CAM follower lever, thus obtaining the theoretic profile of the CAM.
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