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2.塔机的工作机构塔式起重机能够完成起吊、运送重物到指定地点并将重物安装就位的吊装作业全过程,每台塔式起重机都必须装有起升、回转、变幅和大车行走机构(固定式塔机不用)。(1)起升机构在塔机各种工作机构中,最重要并且运转最频繁的是起升机构。起升机构也称卷扬机构,主要由电动机、减速器、钢丝绳卷筒、制动器及滑轮组等组成。减速器多采用圆柱齿轮减速器,或电动换挡或电磁离合器换挡的2速、3速或4速减速器,也有
2. Tower crane working mechanism Tower crane to complete the lifting, transporting heavy objects to the designated location and heavy objects in place for lifting the whole process of hoisting, each tower crane must be equipped with lifting, slewing, luffing and Cart walking agencies (fixed tower crane do not have). (1) Hoisting mechanism Hoisting mechanism is the most important and most frequently operated working mechanism in tower crane. Hoisting mechanism also known as winch, mainly by the motor, reducer, rope reel, brake and pulley components. Reducer use cylindrical gear reducer, or electric shift or electromagnetic clutch shift 2-speed, 3-speed or 4-speed reducer, but also