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The Construction Method of Replacing the Inner Joint Bearing and Pin Shaft of the Crank on Ladle Turntable

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

Active Publication Date: 2022-06-24
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 and pin shaft of the upper crank on the ladle rotary table of the steelmaking and continuous casting machine. question

Method used

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  • The Construction Method of Replacing the Inner Joint Bearing and Pin Shaft of the Crank on Ladle Turntable
  • The Construction Method of Replacing the Inner Joint Bearing and Pin Shaft of the Crank on Ladle Turntable
  • The Construction Method of Replacing the Inner Joint Bearing and Pin Shaft of the Crank on Ladle Turntable

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Embodiment 1

[0046] The ladle turntable of the 1# slab continuous caster has been used in the normal working environment for nearly 11 years in the steel making operation area of ​​the steelmaking operation department of Qian'an Iron and Steel Company of Shougang Co., Ltd. When sitting on the heavy ladle, the inner joint bearing on the right side of the upper crank (also known as the L arm) makes an abnormal noise. After analysis, the direct cause of the abnormal noise 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, and the uneven contact surface formed by the worn joint bearing or pin shaft of the 2# fork arm during the lifting and lowering of the load ladle produces abnormal noise during relative movement. In order to prevent the further expansion of the situation and the serious consequences that may be caused to production in the future, a steelmaking operation area requires the use of the downtime for maintenance to re...

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Abstract

The invention discloses a construction method for replacing joint bearings and pin shafts inside a crank on a ladle turret, belonging to the technical field of parts replacement of ladle turrets of steelmaking and continuous casting machines. The construction steps include: making the tooling before shutting down, removing the heat shield after shutting down, sealing the 1#2# wishbone and upper crank of the ladle turret, installing a temporary operating platform at the position where joint bearings and pin shafts are replaced, Make and install a safety interlock mechanism between the upper crank and the support, and replace the joint bearing and pin shaft. The advantage is that it solves the need to use a two-span bridge crane for feeding and casting when replacing the inner joint bearing and pin shaft of the upper crank on the ladle rotary table of the steelmaking and continuous casting machine. The construction time is long, the site is large, and the construction cost is high. high-impact issues. It provides a time guarantee for the smooth progress of the construction, greatly reduces the construction cost, shortens the construction time, and reduces the impact on production.

Description

technical field [0001] The invention belongs to the technical field of replacement of ladle turntable components of a steel-making and continuous casting machine, and particularly relates to a construction method for replacing a crank inner joint bearing and a pin shaft on a ladle turntable, that is, a sealing and fine-tuning method for replacing the inner side of the crank on a ladle turntable. 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 steel-making continuous casting machine with complex construction environment, relatively limited construction conditions, and difficult disassembly and hoisting. Background technique [0002] The ladle rotary table of the steelmaking continuous casting machine has two sets of ladle lifting mechanisms. The ladle lifting mechanism consists of five parts: the upper crank, the fork arm, the lower connecti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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