18t桥式起重机机械部分设计（有CAD图纸）.pdf

18t 1 The Design of Machinery of the 18-ton Bridge Crane Abstract Bridge crane is a significant increase labor productivity goods handling equipment, primarily to carry goods workshops, equipment installation and maintenance, and other purposes. Beam from the bridge crane, the trolley running, traveling mechanism and electrical equipment constituted. The overall design of the system using the traditional layout of the typical structure and operation of institutions used car driven focus. Pulley group or agency from using double-pulley blocks, heavy objects in the process of lifting the level of no movement, or from the process smooth, and the installation and replacement of wire rope easily. Winding installations in the corresponding single reel, a large area of contact with the rope, the advantages of low pressure units. In lifting bodies also involves rope, reducer, couplings, electrical and brake the choice. Vehicles involved in the operation of institutions pressure on the wheels, car wheels, car track, reducer, couplings, electrical and brake the choice of calculation. Key words bridge crane; hoisting mechanism car; agencies operating; cane traveling mechanism 2 ………………………………………………………………………………1 ……………………………………………………………………………1 1 …………………………………………………