双曲轴相位角同步校正的误区及纠正

The Error and the Rectification for the Synchronous Adjustment of the Phase Angle on the Double-crankshaft

通过计算机模拟可以看出,千分表在曲轴上、下死点处敏感度很差,很难测量一度以内的相位角偏差;滑块行程公式显示这种误差会带来非常明显的偏差,滑块底平面在上、下死点产生严重的不平行。因此,校正相位角同步时,应当选择在对千分表敏感的位置。理论分析表明,双曲轴在水平位置时千分表的敏感度最高,最适宜作为校正的基准位置。

The simulation of the computer shows that the sensitivity of the dial gauge is very low at the top or bottom dead center of the crankshaft. It＇s difficult in measuring the deviation of the phase angle within one degree. The slide stroke formation shows that this kind of mistake will cause the obvious difference, thus the serious nonparallelism will be occurred at the top or bottom dead center on the bottom surface of the slide. So, while adjusting the synchronous adjustment of the phase angle, it should be selected at the sensitive position of dial gauge. The theoretical analysis indicates that the sensitivity of the dial gauge is most high when the double-crankshaft is located at the horizontal position, which is most suitable to be regarded as the referential position for the adjustment.