Method for dismounting and replacing ladle turret revolving bearing

Abstract

The invention aims to provide a method for disassembling a revolving bearing of a large-ladle revolving platform, which can quickly disassemble the revolving bearing and has higher safety, short construction period and lower construction cost. The method comprises the following steps: firstly, disassembling bolts which connect the prior revolving bearing inner race and a pedestal flange; secondly, filling a cushion block on the upper part of a connecting rod hole for a connecting rod to pass through on a box body, and making the upper part of the connecting rod contact the bottom of the cushion block; thirdly, using four jacks to synchronously lift four ladle arms, and making the prior revolving bearing and a revolving body above the prior revolving bearing move up for a certain distance together; fourthly, arranging a tray which is positioned on a guide rail under the prior revolving bearing; fifthly, disassembling bolts which connect the prior revolving bearing outer race and an upper revolving body, and making the prior revolving bearing fallen on the tray; sixthly, making the tray on the guide rail move in the radial direction along the revolving platform, and making the prior revolving bearing deviated from an axial line of the revolving platform; and seventhly, lifting away the prior revolving bearing.

Description

technical field [0001] The invention relates to a method for removing a (old) slewing bearing of a ladle slewing table and a method for replacing the slewing bearing, and belongs to the field of installation and construction of metallurgical machinery and equipment. Background technique [0002] The ladle turret of Meishan No. 2 continuous casting machine is a butterfly double wishbone designed by voestalpine, with a total weight of 185t above the slewing bearing. The ladle turret is located under the track beams of the L trains on the ③-④ line of the factory building, and the hoisting position is extremely difficult. The slewing bearing of the slewing table of the large bag is replaced by the fixing bolts of the ring gear during use. The second is that there is a "snap, slap" sound when rotating with no load and load. The third is the abnormal wear of large particles in the grease. The particles reach 5mm, and some have a thickness of 2.5mm; according to the above phenomen...

AI Technical Summary

Problems solved by technology

The ladle turret is located under the track beams of the L trains on the ③-④ line of the factory building, and the hoisting position is extremely difficult

The slewing bearing of the slewing table of the large bag is replaced by the fixing bolts of the ring gear during use. The second is that there is a "snap, slap" sound when rotating with no load and load. The third is the abnormal wear of large particles in the grease. The particles reach 5mm, and some have a thickness of 2.5mm; according to the above phenomena, it is concluded that the slewing bearing is damaged and must be replaced immediately

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