In order to solve the crack problem near the angle bearing box of the support beam of metallurgical crane at present,this article analyzes the causes of the problem by combining the field strain gauge measurement experiment with finite element calculation.Through calculation,it is found that the height difference of the crane track is an important reason for the cracks.Therefore,this paper puts forward rectification measures for this crane.If the support beam can not be repaired or prevented from expanding,it will be scrapped.At the same time,the crane track will be rectified to make its height difference meet the requirements.Finally,this article puts forward preventive measures for this type of crane.
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