The safety requirements of a special crane used for hoisting and transferring large equipment are very strict,and any lifting control failure may leads to major safety incidents if it is not handled in time and safely.Considering the problems existing in the existing emergency manual lowering operation,such as inconvenient operation,low efficiency and high personnel quality requirements,a technology of using diesel direct-drive hydraulic pump as power source to drive the hoisting mechanism is introduced from the aspects of structural composition,working principle and technical characteristics.Based on the working characteristics and control flow of crane hoisting mechanism,considering the actual situation of a special crane,such as load performance,structural layout,use environment,etc.,an emergency lifting appliance without electricity is put forward,and the feasibility and installation proposals of adding and transforming the emergency lifting appliance were demonstrated in combination with existing crane equipment,and the operation mode of the appliance was analyzed,which provides an option for crane emergency handling operation and improves the safety of hoisting operation.
关键词
特种起重机/特种设备/应急操作/升降装置
Key words
special crane/special equipment/emergency operation/lifting appliance
维普
万方数据