6M50型活塞式压缩机曲轴的开裂原因及改造

Cause of crack of 6M50 piston compressor crankshaft and its modification

分析了六列M型活塞式压缩机曲轴在一级曲柄销处多次开裂的根本原因———轴系的扭转振动 ,研究并实施了简便可行的调整轴系扭转振动固有频率的改造措施 ,有效地消减了轴系的扭转振动 。

Torsional vibration — the fundamental cause of the repeated crack of the crankshaft at the first stage crank pin of 6M50 piston compressor is analyzed. Adjustment of the inherent frequency of torsional vibration of the crankshaft as a simple and feasible measure for modification is studied and executed. Torsional vibration of the crankshaft is effectively eliminated, thus removing the hidden trouble of the crack of the crankshaft at the first stage crank pin.