General Classification Of Overhead Crane

   The bridge crane is the hoisting equipment which carries on the material hoisting in the workshop, the warehouse and the material yard. As it sits at both ends of the tall cement column or metal bracket, it is shaped like a bridge. The bridge Crane's frame is running vertically along the track which is laid on the two sides of the elevated frame, which can make full use of the space lifting material under the bridge frame, and is not hindered by the ground equipment. It is the most widely used, the largest number of lifting machinery.Overhead Crane
   It consists of lifting mechanism, trolley running mechanism and small frame. The hoisting mechanism comprises an electric motor, a brake, a reducer, a reel and a pulley group. The motor drives the reel through the reducer to rotate the wire rope around the reel or down from the reel to lift the weight. A small frame is a rack that supports and installs parts such as lifting mechanism and trolley running mechanism, usually welded. The rotation of the car is divided into two types according to the installation position of the reducer, one is installed in the middle of the car's active wheel, let the car reducer output shaft and both sides of the rotation shaft bearing the torque more evenly; another is the reducer installed in the car on the side of the active wheel, the rotation of the installation, maintenance, maintenance and other more convenient, but will appear the car body torsional pendulum instability situation.Overhead Crane
   Composed of main girder and end beam, it is divided into two types: single main girder bridge frame and double girder bridge. The single main girder bridge consists of one main girder and the end beam located on both sides of the span, and the double girder bridge consists of two main girder and end beam. The main girder is rigidly connected with the end beam, and the ends of the beam are fitted with wheels to support the bridge to operate on the elevated frame. The main girder is welded on the track for the lifting trolley. The structure type of the main girder of the bridge is more. Similar to the eccentric rail box-shaped main girder, consisting of 4 pieces of steel plate a closed structure, in addition to the main abdominal plate for the real belly I-beam, the remaining 3 pieces of steel plate in accordance with the design requirements to cut into many windows, the formation of an empty hollow truss, in the upper and lower horizontal truss surface paved with walking table, crane operating mechanism and electrical equipment installed in the bridge, the weight is lighter, the overall stiffness is large, this is a more widely used in China.Overhead Crane