Method for repairing bearing hole in bracket of steelmaking converter tilting mechanism
The technology of a tilting mechanism and a repairing method is applied in the field of repairing the tilting mechanism of a steelmaking converter, which can solve the problems of large indirect loss and large production impact, and achieve the effects of large indirect benefit, low direct maintenance cost and convenient use.
Active Publication Date: 2015-06-24
TIANJIN TIANGANG UNITED SPECIAL STEEL CO LTD
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Problems solved by technology
Each overhaul takes at least 20 to 30 days, which has a great impact on production and huge indirect losses
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[0024] In order to further understand the invention content, characteristics and effects of the present utility model, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:
[0025] The steelmaking converter includes a converter body 1 and a tilting mechanism that drives the converter body. The tilting mechanism consists of a tilting mechanism bracket 4, tension and compression rods 6, support rings 2, trunnions 3, torsion rods 8, bearing housings 7, motors, and reducers. composition.
[0026] After the bearing hole 5 on the tilting mechanism bracket 4 has been used for a period of time, the size of the bearing hole becomes larger and the hole shape becomes non-cylindrical, so it needs to be repaired. A repair method for the bearing hole of the tilting mechanism bracket of a steelmaking converter is adopted on site. A method for repairing a bearing hole with a polymer composite polymer metal repair protection ...
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The invention relates to a method for repairing a bearing hole in a bracket of a steelmaking converter tilting mechanism. The method is that the bearing hole is repaired on the spot with a high-molecular composite polymer metal repairing protective material, and comprises the following steps: 1), dismounting a strut and tie rod; 2), dismounting a bearing on the bracket of the tilting mechanism while the bracket is kept in the original position and not dismounted; 3), cleaning oil stain in the bearing hole; 4), grinding metal thorns in the bearing hole; 5), cleaning the bearing hole; 6), brushing release agent 803 in the bearing hole uniformly; 7), brushing the mixture of metal repairing protective materials 2211 and 221 in the bearing hole uniformly; 8), mounting a new bearing in the bearing hole; 9), fixing a bearing gland well with a screw; 10), mounting the strut and tie rod in place; 11), heating the circumference of the bearing hole to about 300 to 350 DEG C; and 12), keeping the repaired part for 3 hours' room temperature curing. Due to on-site construction, the method has the advantages that the repair time is reduced; the direct maintenance cost is low; the indirect benefit is high; and impact on production is avoided.
Description
technical field [0001] The invention belongs to the technical field of repairing a tilting mechanism of a steelmaking converter, in particular to a method for repairing a bearing hole of a bracket of a tilting mechanism of a steelmaking converter. Background technique [0002] The steelmaking converter includes a converter body and a tilting mechanism that drives the converter body. The tilting mechanism is composed of a bracket, a motor, a reducer, tension and compression bars, torsion bars, and bearing seats. During the working process of the steelmaking converter, the tilting mechanism drives the converter body to repeatedly tilt and rotate. The tilting mechanism bracket is an important bearing and transmission part of the converter, which plays the role of transmitting the tilting torque. Under the action of impact load, the size of the bearing hole on the support of the tilting mechanism will become larger, and the hole shape will become a non-cylindrical body. The con...
Claims
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IPC IPC(8): B23P6/00
Inventor 崔义东张金宝李志铁李增明庞玉柱
Owner TIANJIN TIANGANG UNITED SPECIAL STEEL CO LTD