传统吊具整体结构较高,部分泊位门机在遇到大型CAPE型船舶空舱高潮水时,无法吊出清舱机械,需等2~3 h退潮时间,影响船舶及时离泊。在实际操作中,门座式起重机能够解决以上所发生的问题门座式起重机是港口件、散货作业的主要岸边装卸机械之一。在散货卸船过程中,当舱内货物被抓取到一定程度时,需要将装载机或挖掘机吊装到舱内辅助作业,以便将 The traditional spreader has a high overall structure. When part of the berth door machine encounters large cavitation of large CAPE ship, it is unable to lift the clean-up machinery and wait for 2 ~ 3 h ebb time to affect the timely departure of the ship. In practice, the portal crane to solve the above problems Portal crane is port, bulk cargo handling one of the major shore handling machinery. In the process of bulk cargo unloading, when the cargo in the cargo is captured to a certain extent, the loader or excavator needs to be hoisted to the auxiliary work in the cabin so that