The electric wire rope hoist is composed of a motor, a transmission mechanism, a drum and a steel wire rope. According to different positions of drum and motor, it can be divided into four different types.
1.Wire rope hoists motor axis perpendicular to the drum axis by the worm gear transmission device, large width, heavy structure, low mechanical efficiency, difficult to processing. Almost no manufacturers to produce this type of wire rope hoist.
2.The monorail electric wire rope hoist which is parallel to the axis of the electric motor has the advantages of small height and length. Its disadvantages are large size, grouping, manufacturing and assembly. The track turning radius is large.
3.The motor installed in the drum inside the wire rope hoist, which has the advantages of small size, compact structure. The main disadvantages is the poor motor cooling conditions, poor grouping, and the inspection, installation, maintenance of motor inconvenience, power supply device is complex.
4.The motor installed on the outside of the monorail electric wire rope hoist, which has the advantages of good grouping, high degree of commonality, easy to change the lifting height, convenient installation and maintenance. The disadvantage is that the length is large.