起重运输机械
起重運輸機械
기중운수궤계
HOISTING AND CONVEYING MACHINERY
2014年
11期
25-27
,共3页
桥式抓斗起重机%拖动%控制%自动化
橋式抓鬥起重機%拖動%控製%自動化
교식조두기중궤%타동%공제%자동화
bridge-type grab crane%drag%control%automatic
针对传统的抓斗起重机在电力拖动和电气控制器的缺点，设计了PLC控制系统取代继电器和接触器组成的控制电路，利用变频器“下垂控制”功能实现提升绳和开闭绳等拉力，提高电能的工作效率，优化了抓斗的可操控性，降低了设备故障率。
針對傳統的抓鬥起重機在電力拖動和電氣控製器的缺點，設計瞭PLC控製繫統取代繼電器和接觸器組成的控製電路，利用變頻器“下垂控製”功能實現提升繩和開閉繩等拉力，提高電能的工作效率，優化瞭抓鬥的可操控性，降低瞭設備故障率。
침대전통적조두기중궤재전력타동화전기공제기적결점，설계료PLC공제계통취대계전기화접촉기조성적공제전로，이용변빈기“하수공제”공능실현제승승화개폐승등랍력，제고전능적공작효솔，우화료조두적가조공성，강저료설비고장솔。
In view of deficiencies of traditional grab cranes in electric dragging and electric control,a PLC control system is designed to replace the control circuit composed of the relay and the contact,which can provide tensile forces such as rope lifting,opening,and closing using the “droop control”function of the converter,hence to improve the work-ing efficiency,optimize controllability of the grab,and reduce the equipment fault rate.
