Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for replacing slewing bearing of ladle turret

A technology of bale turntable and slewing bearing, which is applied in metal processing, metal processing equipment, hand-held tools, etc. It can solve the problems of high risk of jacking, arrangement on the edge of the corner, and increased difficulty of jacking, so as to shorten the operation time, the effect of improving safety

Inactive Publication Date: 2021-10-01
SHANGHAI MEISHAN IRON & STEEL CO LTD
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The 4 corners of the slewing body have sufficient strength and are good jacking surfaces, but since the length of the slewing body is only 500mm wider than the slewing bearing, the jack can only be arranged at the edge of the corner and the gap between the bearing and the jacking support seat is very small Small, high risk of jacking
In addition, the rotary table of 3#4# continuous casting machine adopts the pin brake method. The base of the rotary table has a boss with a height of 100mm, and there is a boss with a height of 150mm on the rotary table. Therefore, if the jacking scheme is adopted, the stroke must be at least 300mm The jack needs to be reasonably arranged to take out the height of the bearing to ensure that there is a sufficient safety distance between the bearing and the upper and lower bosses, which undoubtedly increases the difficulty of jacking

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for replacing slewing bearing of ladle turret
  • Method for replacing slewing bearing of ladle turret
  • Method for replacing slewing bearing of ladle turret

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: see figure 1 , a method for replacing a slewing bearing of a bale turntable, the method is as follows:

[0022] Step 1: In order to increase the working area for jacking, weld a 600*600*40 steel plate on the four corners of the turntable as the jacking extension surface 1, and weld 5 pieces of 50 thick right angles on the working surface extending 300*600 Rib plate 2; the lifting arm of the turntable is turned to the east-west direction, and the bearing is removed from the south face and hoisted away with a pouring straddle truck. In order to facilitate the on-site positioning of the oil cylinder support seat, four support seat positioning plates (3, 4, 5, 6) with a thickness of 40mm are installed on the continuous casting platform in advance. The positioning plates are symmetrically arranged on the vertical and horizontal centerline of the rotary body. The positioning dimensions are shown in the figure below ( figure 2 ), the on-site rapid positioning ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for replacing a slewing bearing of a ladle turret. The method comprises the following steps that 1, a steel plate is welded at each of four corners of the turret to be used as a jacking extension face (1), and a right-angle reinforcing rib plate (2) is welded on each extension working face; 2, four oil cylinder supporting seats are manufactured, the shape of a bottom plate of each supporting seat is the same as that of a supporting seat positioning plate, and the oil cylinder supporting seats can be conveniently installed on the positioning plates; 3, oil cylinders (13) are installed on each supporting seat, the oil cylinders are symmetrically arranged on the upper surfaces of the supporting seats, the centers of the oil cylinders are located in a box body structure, and the jacking height of the oil cylinders is 300 mm; and 4, bearing moving-out rails (21) and a rail support (22) are manufactured. According to the technical scheme, the jacking faces of the oil cylinders are extended, the structures of the supporting bases are optimized, the problem that the gap between the slewing bearing and the oil cylinder supporting seats is too small is well solved, and jacking of a slewing body of the turret can be safely and reliably completed by means of the scheme.

Description

technical field [0001] The invention relates to a replacement method, in particular to a method for replacing a rotary bearing of a ladle turret, and belongs to the technical field of the ladle turret of a continuous casting machine. Background technique [0002] Meishan Iron and Steel 3#, 4# continuous casting machine bale turntable is a butterfly-shaped dual-arm lifting turret, which is used to transport the bale from the receiving position to the casting position, and transport the empty bale back to the receiving position or from the casting position Accident location, and monitor the weight of bales. The rotary table is composed of a rotary body, a lifting arm, a saddle, an upper link, and a lifting hydraulic cylinder. Generally, there are three replacement methods for the bearings of the bale slewing table: 1. The method of lifting the balance beam as a whole; Although the first method is feasible, the manufacturing cost of the special balance beam is expensive, and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B23P19/02B25B27/06
CPCB23P19/02B25B27/06
Inventor 谢序渊徐光庆黄成永陈德亮
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products