Replacement method of revolving bearing of material taking machine

A replacement method and a technology for slewing bearings, which are applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve the problems of difficult bearing access, replacement bearings that cannot be rotated and reset, high requirements for jacking and positioning, and achieve the effect of solving misalignment

Active Publication Date: 2015-01-07
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the failure of the slewing action, there are many problems in the replacement of bearings, such as the inability to turn and reset, narrow construction space, high requirements for jacking and positioning, difficulty in getting in and out of the bearing, and safety control of the overturning of the whole machine. At present, there is no safe and effective slewing bearing replacement method.

Method used

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  • Replacement method of revolving bearing of material taking machine
  • Replacement method of revolving bearing of material taking machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1 of the present invention: as figure 1 As shown, a method for replacing the slewing bearing of a reclaimer specifically includes the following steps,

[0029] Preparations: Necessary conditions for on-site disassembly of slewing bearings. The wind speed at the work site must be less than 10m / s (level 5 wind). When the wind speed is greater than 10m / s, the disassembly work must be stopped, and the slewing connection bolts must be reset and reconnected. . Prepare counterweight support, jib support, hydraulic jack and other machinery, tools and facilities.

[0030] Step 1, install the counterweight bracket: set the counterweight bracket 2 directly under the counterweight 1 of the reclaimer, place two sets of 200-ton counterweight jacking jacks on the top of the counterweight bracket 2, and set the counterweight jacking jack on the top of the counterweight jack. Heavy jacking mould;

[0031] Step 2, adjust the arm frame and counterweight of the reclaimer and ...

Embodiment 2

[0038] Embodiment 2 of the present invention: as figure 1 As shown, a method for replacing the slewing bearing of a reclaimer specifically includes the following steps,

[0039] Step 1, install the counterweight bracket: set the counterweight bracket 2 directly under the counterweight 1 of the reclaimer, place two sets of 200-ton counterweight jacking jacks on the top of the counterweight bracket 2, and set the counterweight jacking jack on the top of the counterweight jack. Heavy jacking mould;

[0040] Step 2, adjust the arm frame and counterweight of the reclaimer and set the arm frame support: the reclaimer pitches and lifts the arm frame of the reclaimer 3 At the same time, adjust the counterweight jack to compact and lift the mold, and then anchor the large traveling wheel, Weld the stopper on the track and add iron shoes; set the boom bracket 5 directly below the bucket wheel 4 of the boom bracket of the reclaimer, place a pier on the jib bracket 5 to adjust the height, ...

Embodiment 3

[0046] Embodiment 3 of the present invention: as figure 1 As shown, a method for replacing the slewing bearing of a reclaimer specifically includes the following steps,

[0047] Step 1, install the counterweight bracket: set the counterweight bracket 2 directly under the counterweight 1 of the reclaimer, place two sets of 200-ton counterweight jacking jacks on the top of the counterweight bracket 2, and set the counterweight jacking jack on the top of the counterweight jack. Heavy jacking mould;

[0048] Step 2, adjust the arm frame and counterweight of the reclaimer and set the arm frame support: the reclaimer pitches and lifts the arm frame of the reclaimer 3 At the same time, adjust the counterweight jack to compact and lift the mold, and then anchor the large traveling wheel, Weld the stopper on the track and add iron shoes; set the boom bracket 5 directly below the bucket wheel 4 of the boom bracket of the reclaimer, place a pier on the jib bracket 5 to adjust the height...

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Abstract

The invention discloses a replacement method of a revolving bearing of a material taking machine. The replacement method comprises the following steps: (1) a counterweight bracket is mounted; (2) an arm frame of the material taking machine and a counterweight are adjusted; and an arm frame bracket is arranged; (3) a gear ring protective cover, a central power cable and a central carriage are removed; a bearing bracket is welded; and a platform is built; (4) a jacking bracket is reinforced; and a jacking jack is placed; (5) a guide sleeve and an anti-tilting bracket are welded; (6) a bearing inner ring bolt is disassembled; and the upper body of the material taking machine is jacked; and (7) a plate is paved; a roller is placed; and a bearing is extracted out. The replacement method of the revolving bearing of the material taking machine, provided by the invention, is safe and effective, and effectively reduces the cost and difficulty of replacing the revolving bearing.

Description

technical field [0001] The invention relates to a method for replacing a rotary bearing of a reclaimer. Background technique [0002] The reclaimer is the main equipment of the coal loading and unloading line, with a self-weight of more than 800 tons. Due to the long-term operation of the reclaimer, the slewing bearing part of the slewing mechanism has serious abnormal noise and the slewing bearing is seriously worn. To replace the slewing bearing, it is necessary to separate the slewing upper body from the mast support seat to allow construction space. Due to the failure of the slewing action, there are many problems in the replacement of bearings, such as the inability to turn and reset, narrow construction space, high requirements for jacking and positioning, difficulty in getting in and out of the bearing, and safety control of the overturning of the whole machine. At present, there is no safe and effective slewing bearing replacement method. . Contents of the inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P11/00B23P19/02
CPCB23P19/02
Inventor 汪澄王海芳王涛陈小明
Owner NORTHEASTERN UNIV
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