Construction method for replacing knuckle bearing and pin shaft on inner side of crank on ladle turret

A technology of joint bearing and construction method, which is applied in the direction of manufacturing tools, metal processing equipment, casting molten material containers, etc., can solve the problems of long construction time, high construction cost, and large space occupation, so as to shorten construction time, reduce production and cost. Construction cost and the effect of saving construction site

Active Publication Date: 2021-03-19
BEIJING SHOUGANG CONSTR GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It solves the problem of using a two-span bridge crane for feeding and casting when replacing the inner joint bearing

Method used

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  • Construction method for replacing knuckle bearing and pin shaft on inner side of crank on ladle turret
  • Construction method for replacing knuckle bearing and pin shaft on inner side of crank on ladle turret
  • Construction method for replacing knuckle bearing and pin shaft on inner side of crank on ladle turret

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Embodiment 1

[0046] Shougang Qian'an Iron and Steel Co., Ltd. Steelmaking Operation Department No. 1 steelmaking operation area 1# slab continuous casting machine ladle rotary table has been used in normal working environment for nearly 11 years. Now it is found that 1# ladle rotary table 2# The inner joint bearing on the right side of the upper crank (also known as L arm) makes abnormal noise when lifting and lowering while sitting on the heavy steel ladle. After analysis, the direct cause of the abnormal sound is the inner joint bearing or pin on the right side of the upper crank of the 2# fork arm. The shaft has been worn out, and the rough contact surface formed by the worn joint bearing or the pin shaft of the 2# yoke when the ladle is lifted and lowered by the load produces abnormal noise when it makes relative motion. In order to prevent further expansion of the situation and possible serious consequences to production in the future, a steelmaking operation area requested that the in...

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Abstract

The invention discloses a construction method for replacing a knuckle bearing and a pin shaft on the inner side of a crank on a ladle turret, and belongs to the technical field of steel-making continuous casting machine ladle turret part replacement. The construction method comprises the following construction steps of manufacturing a tool before shutdown, dismounting a heat insulation plate aftershutdown, sealing and fixing 1# and 2# fork arms and an upper crank of the ladle turret, installing a temporary operation platform at the position where the knuckle bearing and the pin shaft are replaced, manufacturing and installing a safety interlocking mechanism between the upper crank and a support, and replacing the knuckle bearing and the pin shaft. The construction method for replacing theknuckle bearing and the pin shaft on the inner side of the crank on the ladle turret has the advantages that the problems of long construction time, large occupied area, high construction cost and large influence on production due to the fact that a bridge crane with two spans of feeding and casting needs to be used when the knuckle bearing and the pin shaft on the inner side of the upper crank of the ladle turret of a steelmaking continuous casting machine are replaced are solved. A time guarantee is provided for smooth construction, the construction cost is greatly reduced, the constructiontime is shortened, and the influence on production is reduced.

Description

technical field [0001] The invention belongs to the technical field of parts replacement of ladle turret for steelmaking and continuous casting machines, in particular to a construction method for replacing the inner joint bearing and pin shaft of the crank on the ladle turret, that is, a sealing fine-tuning method for replacing the inner side of the crank on the ladle turret The construction method of the joint bearing and the pin shaft is suitable for the construction project of replacing the joint bearing and the pin shaft of the ladle rotary table of the steelmaking continuous casting machine with complex construction environment, relatively limited construction conditions, and difficult disassembly and hoisting. Background technique [0002] There are two sets of ladle lifting mechanisms on the ladle rotary table of steelmaking and continuous casting machine. The ladle lifting mechanism is composed of five parts: upper crank, yoke, lower connecting rod, turntable rotary ...

Claims

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Application Information

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IPC IPC(8): B25B27/02B25B27/06B22D41/13
CPCB25B27/026B25B27/064B22D41/13
Inventor 张伟红张立杰陈树锋
Owner BEIJING SHOUGANG CONSTR GROUP
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