Electric hoists may be used as stand-alone equipment or mounted structural frames and tracks as a part of a lifting system. These types of lifting systems are:
Engine Hoists
Engine hoists, or engine cranes, are used to assist the workers in the installation and maintenance of engines of automobiles. They are designed to lift the engine under the automobile hood. Their electric hoists are mounted on top of the rigid and portable structural frame. The structural frame has wheels installed at its base to easily maneuver the hoist over the automobile, as well as to transport it around the machine shop. Its portability makes it suitable for outdoor applications. The structural frame of some engine hoists is foldable, so it can save space when it is stored.
Overhead Cranes
The installation of overhead cranes is planned during the early stages of a building‘s construction, as they require a much greater amount of structural support. Overhead cranes lift the heaviest loads at the highest lifting heights in an enclosed facility.
In overhead cranes, there are two parallel end trucks mounted on runway beams . The runway beams are also responsible for supporting the entire overhead crane and the load. The end trucks travel along the rails of the runway beams together with the bridge and the electric hoist. The electric hoist travels across the length of the bridge. The bridge can either be a single girder or a double girder bridge. A single girder bridge crane has one trolley that moves across a single girder beam, while the double girder bridge crane has two trolleys that move the electric hoist synchronously across two girder beams. The bridge and the end trucks are positioned perpendicularly with each other. This arrangement enables the electric hoist to move left and right (via end trucks), and forward and backward (via the bridge). Lifting and positioning parameters are controlled remotely.
Monorail Cranes
Monorail cranes are a type of overhead crane used in production facilities and machine shops for repetitive lifting and positioning tasks. They are used to move loads to a restricted area. The electric hoist trolley runs on the outer flange of a single I-beam, which is already built on the ceiling structure of the building.
Post time: Aug-16-2022