We all know that electric hoist is mainly divided into ring chain electric hoist and wire rope electric hoist. Most types of electric hoist are in these two categories, but why are the group hoist electric hoists different? Next, this special hoist is introduced in detail:
The group hoist electric hoist should be regarded as a kind of chain electric hoist, but because of its particularity, the group hoist electric hoist is generally considered separately. This electric hoist is divided into two types: climbing frame electric hoist and welding tank electric hoist. The electric hoist is a hoist used in construction engineering. The electric hoist of the welding tank is mainly used on large storage tanks, so it is divided according to its environment. However, these two hoists are in some sense. The function and structure are the same. The structural principle is also the same: it consists of three parts: group hoist electric hoist, three-phase disc brake motor and planetary gear reducer. Electric hoist transmission principle: The rotation of the group hoist electric hoist motor is decelerated by the reducer, and the speed and power are output to make the electric hoist lower hook rise or fall. When the motor is powered off, the group crane electric hoist uses the hook of the hoist to stop the work due to the braking of the brake motor, and the heavy weight stops at a considerable position. In addition, there is a special feature of the electric hoist. This hoist cannot be operated by a single unit. It must be operated by multiple units at the same time. The entire lifting is achieved through the same control system, so this is a special point that is different from the ordinary electric hoist.