On-line exchanging bearing construction method for cold rolling electroplating and continuous annealing set sinking roller

A technology for sinking rollers and bearings, which is applied in the direction of bearing unloading, bearing components, shafts and bearings, etc. It can solve the problems of affecting the production efficiency of the unit, long production auxiliary time, and long disassembly and assembly time, so as to shorten the maintenance time and reduce production. Auxiliary time, effect of shortening construction time

Active Publication Date: 2007-12-12
中国二十冶金建设有限公司
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

At present, the rollers are removed as a whole after shutdown, and the bearings are replaced off-line, which is labor-intensive; the disassembly and assembly time is long, which leads to the shutdown time of the unit for more than 5 hours, and the production auxiliary time is too long, which affects the production efficiency of the unit

Method used

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specific Embodiment approach

[0019] Further provide the specific embodiment of the present invention below: a kind of cold rolling, electroplating or continuous annealing unit sinking roller on-line replacement bearing construction method, described bearing replacement technology comprises the following steps:

[0020] a. Remove the mechanical seal cover on the plating tank or water tank of the unit, and disengage the dynamic and static rings of the mechanical seal;

[0021] b. Hang the manual hoist on the steel structure of the installation tank or weld a set of lifting points on the tank, tie the stick, open the bearing gland, remove the round nut and the round nut stop washer, without removing the roller as a whole, saving time for reinstallation;

[0022] c. Remove the anchor bolts of the bearing seat of the sinking roller, and pull down the bearing seat and bearing as a whole with a pull code;

[0023] d. The bearing housing is disassembled, and the bearing housing and the sinking roller head are cl...

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PUM

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Abstract

The invention relates to the cold forging plating or continuous annealing bearing changing method. It dismantles the seal hood to get out of the seal active and static rings, installs the chain block on the steel structure or slot welding hanger to tie the roller, opening the bearing cover, dismantling the round nut and its stop cushion, dismantle the bearing base bolt, pulling down the bearing base and dismantle and clean it, installing the new bearing into the base and put it back, applying oil to the bearing to put back the round nut stop cushion, nut and bearing cover, adjusting the verticality of the depositing roll, and the mechanical seal to install the outside hood. It simplifies the procedure, reduces maintenance 2-3 hours, reduced in assisting time in production, and increased in productivity.

Description

technical field [0001] The invention relates to the maintenance technology of mechanical equipment in cold rolling mills, in particular to a construction method for on-line replacement of bearings for sinking rolls of cold rolling electroplating or continuous annealing units. Background technique [0002] Since the 1990s, my country has successively put into production a number of cold-rolled continuous annealing units, galvanizing units, electro-galvanizing units and tinning units. Each unit has dozens of sinking rollers, and bearings are installed at both ends of the rollers. Inside the bearing seat, there are mechanical seal covers and mechanical seal dynamic and static rings, which are supported and fixed on the foundation ground with anchor bolts. Since the maximum operating speed of the strip steel of the unit is above 400m / min, and the rotating speed of the rollers is extremely high, the bearings wear out quickly and need to be replaced frequently. At present, the rol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65G49/00F16C39/00F16C43/00
Inventor 田伟赵成涛戴卫东王英俊刘占恒王建军张传玉韩敏
Owner 中国二十冶金建设有限公司
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