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Crane accessories operating agencies normally just four driving and driven wheels, if the weight is very big, commonly used to increase the wheel to reduce wheel pressure. Must be used when more than four wheels articulated balanced frame device, make the crane load evenly distributed on each wheel. Metal structure of the bridge is composed of main girder and end beam, divided into the single main girder bridge and double beam bridge frame. Single by single girder main girder bridge frame and located at the end on both sides of the span of beam, double girder frame is composed of two main girder and end beam. Main girder and end beam, rigid connection on both ends of the beam is equipped with wheel, to supporting bridge in an elevated running on. Girder welding has the track, for lifting the car running. The structure of the bridge girder type more than four typical box-type structure, truss structure and vierendeel truss structure. Can be divided into the right box box structure double beam, partial rail box double beam, partial rail box girder of the single to wait for a few kinds.
Double beam crane accessories right box is widely used in a basic form, the main girder consists of upper and lower vertical on either side of the flange plate and web plate of rail car is decorated in the center of the line on the flange, its simple structure, easy fabrication, suitable for batch production, but the weight is bigger. Partial rail box double beam and rail box single girder cross section are ranged from upper and lower flange plate and the thickness of the main deputy of web,
Shandong longteng hoisting machinery co., LTD adhere to the green production, green is used, to contribute the sustainable development of society, make the product production corresponding to the needs of The Times, meet the needs of the consumers.