Welding and overturning device for crane beam

Abstract

The invention relates to a welding and overturning device for a crane beam. The welding and overturning device comprises a base. A hydraulic cylinder A and a hydraulic cylinder B are hinged to the two ends in the base. The hydraulic cylinder A and the hydraulic cylinder B are connected with an overturning frame A and an overturning frame B in a hinged manner respectively. Rolling seats are arranged on the upper surfaces of horizontal supports of the overturning frame A and the overturning frame B. A supporting plate A is arranged on the upper portion of a vertical support of the overturning frame A. An electromagnet A is arranged on the rear side face of the supporting plate A. A contact switch A is arranged in the middle of the overturning frame A. One side of the lower portion of the overturning frame A is connected with an electric push rod A. A rolling seat is arranged on the upper surface of a horizontal support of the overturning frame B. A rotating roller is arranged in the rolling seat. A supporting plate B is arranged on the upper portion of a vertical support of the overturning frame B. An electromagnet B is arranged on the rear side face of the supporting plate B. A contact switch B is arranged in the middle of the overturning frame B. An electric push rod B is connected with one side of the lower portion of the overturning frame B. The welding and overturning device has the beneficial effects that the structure is simple, use and operation are convenient, and design is reasonable.

Description

technical field [0001] The invention belongs to the technical field of hoisting machinery auxiliary equipment, in particular to a crane girder welding turning device. Background technique [0002] With the development of industrialization, the application of hoisting machinery in industry is becoming more and more common, the technological update of hoisting machinery is also getting faster and faster, the tonnage of hoisting is getting bigger and bigger, and the production requirements of hoisting machinery are getting more and more High, in the production process of the crane, the left and right webs and cover plates of the crane girder need to be welded together. In order to facilitate the welding operation, it is necessary to turn the web and cover plates at a certain angle to facilitate the welding operation. However, at present There are many inadequacies in the overturning form of the existing overturning device. When different types of beams are welded in the existin...

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Problems solved by technology

[0002] With the development of industrialization, the application of hoisting machinery in industry is becoming more and more common, the technological update of hoisting machinery is also getting faster and faster, the tonnage of hoisting is getting bigger and bigger, and the production requirements of hoisting machinery are getting more and more High, in the production process of the crane, the left and right webs and cover plates of the crane girder need to be welded together. In order to facilitate the welding operation, it is necessary to turn the web and cover plates at a certain angle to facilitate the welding operation. However, at present There are many inadequacies in the overturning form of the existing overturning device. When different types of beams are welded in the existing overturning device, it is easy to cause the girder to slide during the overturning process, causing the impact of the crane beam and the overturning device, which is easy to cause the overturning device to fail. In addition, during the overturning process, the crane girder is prone to sliding friction with the overturning device, causing damage. In addition, the overturning angle cannot be overturned according to different crane girder models, and it cannot be adjusted to the best angle for welding. Finally, After adjusting the angle, it is inconvenient to fix the crane girder. The usually used compression method may easily cause the web on the unwelded side to bear a large external force, which may easily cause the crane girder to deform.

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