Structure and operation of overhead crane
overhead crane is a bridge-type crane whose overhead runs on elevated rails, also known as overhead crane.
The bridge frame of the bridge crane runs longitudinally along the rails laid on the elevated sides of the two sides,
and the lifting trolley runs laterally along the rails laid on the bridge, forming a rectangular working range,
which can make full use of the space under the bridge to lift materials, without Obstructed by ground equipment.
overheade cranes are widely used in indoor and outdoor warehouses, factories, docks and open storage yards.
Bridge cranes can be divided into ordinary bridge cranes, simple beam bridge cranes and metallurgical bridge cranes.
The ordinary overhead crane is generally composed of a lifting trolley, a bridge operating mechanism, and a bridge metal structure.
The lifting trolley is composed of three parts: a lifting mechanism, a trolley running mechanism and a trolley frame.
The lifting mechanism includes electric motor, brake, reducer, drum and pulley block. The motor drives the drum to rotate through the speed reducer,
so that the wire rope is wound around the drum or lowered from the drum to raise and lower the weight. The trolley frame is a frame that supports and installs components
such as a lifting mechanism and a trolley running mechanism, and is usually a welded structure.
