The components of wire rope electric hoist are: motor, transmission
mechanism, reel and wire rope. The motor and the reel can be
roughly divided into four types based on the different positions of
each other. (1) The electric hoist whose motor axis is
perpendicular to the axis of the drum adopts worm gear
transmission, which is large in width, heavy in structure, low in
mechanical efficiency, and difficult to process. No manufacturer
produces products of this type of structure anymore. Wire rope
electric hoist(2) The electric hoist with the motor axis parallel to the drum
axis has the advantage of small height and length.Its disadvantages
are large width, grouping, and complicated manufacturing and
assembly. The track turning radius is large.
(3)The electric hoist with the motor installed in the drum has the
advantages of small length and compact structure. Its main
disadvantages are poor heat dissipation conditions of the motor,
poor grouping, inconvenient inspection, installation, and
maintenance of the motor, and complicated power supply devices. (4)
The electric hoist with the motor mounted on the outside of the
drum has the advantages of good grouping, high degree of
generalization, easy to change the lifting height, and convenient
installation and maintenance. The disadvantage is: the length is
large.