ＱＬＤ１６型轮胎式起重机动力为４１３５２－１型柴油机。频繁工作后，造成柴油机曲轴键槽出现挤压性磨损（见附图），严重影响正常工作。修复磨损键槽的传统方法是，先拆卸磨损轴，在损坏处堆焊、然后上车床加工外圆，再送铣床加工键槽。此方法工期长、效率低，对柴油机来说 QLD16 tire cranes power 41352-1 diesel engine. Frequent work, resulting in diesel engine crankshaft keyway squeeze wear (see photo), seriously affecting the normal work. The traditional method of repairing the worn keyway is to firstly disassemble the worn shaft, build up the welding at the damaged place, then machine the outer circle on the lathe, and then send the keyway to the milling machine. This method has a long construction period and low efficiency, and for a diesel engine