Overhead Travelling Crane is widely-used hoisting machinery at present, which is also called EOT crane - electrical overhead traveling crane; Overhead traveling crane mainly consists of 4 parts, bridge frame ( two main girders and two end beams ), crane traveling mechanism, trolley with frame and electrical parts. The major supporting frame of the crane is the bridge frame composed by main girder of box shape, end beam, walkway, rail and operating cabinet. Trolley is located on it, trolley is a rigid frame welded by steel plate. Main hoisting mechanism, auxiliary hoisting mechanism and trolley operating mechanism are on the trolley. Crane operating mechanism is equipped on both sides of the bridge frame end beam. The electrical parts are mainly located on the walkway of the EOT crane and the operation cabin, and the power is connected to main switch of the crane with special purpose sliding wire.
Overhead Travelling Crane Operation mode can be selected for ground operations, remote operation, and driver’s cabin according to the specific situation. Because of large span and lifting capacity, high lifting height, overhead traveling crane usually adopt driver’s cabin operation. Each mechanism of crane operating speed can be designed into fixed speed; or VVVF inverter speed type, hook with anti-sway.
