Structure and characteristics of double-beam crane wire rope electric hoist
1. Electric hoist whose motor axis is perpendicular to the axis of the reel adopts worm gear transmission. It has a large width, a heavy structure, low mechanical efficiency and difficult processing. No manufacturer has produced this type of structured product.
2. The electric hoist with the motor axis parallel to the drum axis has the advantages of small height and length. Its disadvantages are large width, grouping, and complicated manufacturing and assembly. The turning radius of the track is large.
3. The electric hoist with the motor installed in the reel has the advantages of small length and compact structure. Its main disadvantages are poor motor heat dissipation conditions, poor grouping, inconvenient inspection, installation, and maintenance of the motor, and complicated power supply devices.
4. The electric hoist with the motor installed outside the drum has the advantages of good grouping, high degree of generalization, easy lifting and changing, and convenient installation and maintenance. The disadvantage is that the length is large.
