Method for quickly replacing pivotal bearing of bale panoramic tables

Abstract

The invention relates to a quick-changing method of a bale revolving platform revolution shafting bearing, which is characterized in that four steel pipes are adopted as upright posts; the four upright posts are vertically distributed on the circumference of the base of the bale revolving platform; then a construction method that a jack is transposed and put to compensate a lifting point is adopted; four jacks not less than 200t are entirely utilized to lift a rotation platform at the upper part of a revolution shafting bearing, so as to ensure the revolution shafting bearing to be completely exposed on a groove at the base of bale revolving platform and to move the revolution shafting bearing in parallel for changing. The quick-changing method has the advantages of fast speed of changing the revolution shafting bearing, high safety performance, low construction cost, and high changing quality.

Description

1. Technical field: [0001] The invention relates to a method for quickly replacing a slewing bearing of a ladle slewing table, which belongs to the field of installation and construction of metallurgical machinery and equipment. 2. Technical background: [0002] Thin slab continuous casting and rolling ladle turret is mainly composed of base, slewing bearing, upper rotating structure, lifting arm, lifting hydraulic cylinder, slip ring, weighing device, etc. It is the supporting and carrying equipment for ladle. Its function is to turn the fully loaded steel ladle located at the receiving position to the steel pouring position, ready for pouring, and at the same time turn the poured empty ladle back to the ladle receiving position. The slewing bearing is located between the rotating gear seat and the rotating platform. It bears the load transmitted by the slewing arm and is an important equipment for the bale turret. [0003] The slewing bearing rollers and cages of the ladl...

AI Technical Summary

Problems solved by technology

Because it is located under the crane girder between the two workshops, the crane cannot be used, so a lifting point can only be set on the crane girder, and it can be lifted by hoisting. However, since the bale turntable is only 150mm away from the bottom plate of the girder, the lifting height Small, difficult to set up pulleys, difficult to tie equipment

In addition, the beam is not in the center of the bale turntable, and it is easy to be eccentric when lifting, making it difficult for the slewing bearing to be lifted out of the groove and difficult to reinstall. At the same time, due to the small size of the big bottom on the bale turntable, it is very difficult to use hoisting to maintain its levelness and safety. Not good, difficult to implement

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