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1台SRSC45型集装箱正面吊在吊运时,其SDJ450型吊具突然出现无法回转故障。本文通过介绍该型吊具工作原理,分析故障原因,并在此基础上进行故障排查。1.工作原理及原因分析(1)工作原理该集装箱正面吊配置的SDJ450型吊具为标准吊具,可以侧移并可旋转,还设有吊具回转限位器。该集装箱吊具液压系统与吊臂伸缩、吊具侧移共用1个液压泵和溢流阀,溢流压力为13.8~14.2MPa。液压油进入吊具回转系统后,先进入Y18控制的吊具回转快慢控制阀,通过2个
When one SRSC45 container was hoisted in front of the crane, its SDJ450 spreader suddenly appeared unable to revolve. This article describes the working principle of this type of spreader, analyze the cause of the fault, and on this basis, troubleshooting. 1.Working principle and reason analysis (1) Working principle The SDJ450 spreader with the front suspension configuration of the container is a standard spreader that can be side-shifted and can be rotated, and a spreader is provided. The container spreader hydraulic system and telescopic boom, spreader sideshift share a hydraulic pump and relief valve, overflow pressure of 13.8 ~ 14.2MPa. Hydraulic oil into the spreader slewing system, the first into Y18 spreader slewing speed control valve, through 2