Method for manufacturing and controlling camber of crane main girder
A crane and camber technology, applied in manufacturing tools, welding equipment, metal processing, etc., can solve problems such as complex transfer, affecting material performance, and large demand for casting platforms, so as to avoid secondary damage, reasonable welding sequence, and low cost saving effect
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[0019] The following is a detailed description based on the structural diagram of a method for making and controlling the camber of the crane's main girder shown in the attached drawings: A method for making and controlling the camber of the crane's main girder, the specific steps are:
[0020] a) Tailor-weld angle steel or T-shaped material with the leftover material or material head cut from the plate, and preform all of them into a uniform length as the frame shape;
[0021] b) Weld the prefabricated frame profile to the embedded part 1 on the ground of the workshop, and calculate the reserved camber of the main beam of the crane;
[0022] c) Use theodolite to transfer all the reserved camber values to each frame profile, and weld transverse profile 3 to this height;
[0023] d) Lay the main beam bottom plate 2 to match the reserved camber, and fix it with the tire frame as a whole;
[0024] e) Diaphragm 4 in the assembly beam, welded orthopedic;
[0025] f) Cover the top plate of t...
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