Maintenance method for frame roller of roughing mill
A technology of rack rolls and rough rolling mills, which is applied in the direction of metal rolling racks, metal rolling mill stands, metal rolling, etc., and can solve problems such as inability to replace first and then overhaul, inconvenient on-site maintenance, and long maintenance shutdown time. Achieve the effect of convenient and fast disassembly and hoisting process, reduce online maintenance time, and reduce labor intensity
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[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0027] A method for overhauling a roughing mill stand roll adopts the following figure 1 Roughing mill stand roll overhaul tooling with the structure shown, including
[0028] A push-pull trolley, the push-pull trolley includes a rectangular parallelepiped plate-shaped vehicle frame 1 and a wheel 2 positioned below the vehicle frame 1, and the wheel 2 matches the work roll change track of the roughing mill;
[0029] A roll change hook 3, the roll change hook 3 is a "U" shape with two joint ends, and the joint end of the roll change hook 3 is detachably connected to one end of the push-pull trolley frame 1 in the length direction through bolts;
[0030] The roller-changing track mechanism includes two rows of columns 4 arranged along the width direction of the vehicle frame, two in each row, and the two rows of columns are opposite al...
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