300t内饰液压机油缸故障分析及修复

Analysis and Repair of Cylinder Failure of 300t Interior Hydraulic Press

300t内饰液压机为双缸整体机身结构,右侧主油缸活塞杆表面反复出现划伤的原因是机身导轨加工精度不够,滑块精度调整不佳,导致活塞杆运行时受力偏载,运行过程中与铜套产生摩擦,从而划伤活塞杆与铜导套。因此,分析该设备此类故障的成因,改进机身结构,提高加工精度,优化滑块精度调整方式,避免类似故障再次发生。

The 300 t interior hydraulic press is a double cylinder integral fuselage structure. The reason for the scratches on the piston rod surface of the right main cylinder is that the machining accuracy of the guide rail of the fuselage is not enough and the accuracy of the slider is not adjusted well, which results in the eccentric load on the piston rod during operation and the friction with the copper sleeve during operation, so as to scratch the piston rod and the copper guide sleeve. This paper analyzes the cause of this kind of fault of the equipment, improves the structure of the machine body, improves the machining accuracy, optimizes the adjustment mode of the precision of the slide block, and avoids the recurrence of similar faults.