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Vol 159 No 2
Pages:
85-87
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RUS
Research article
Mining electromechanics

The problem of increasing the clearances in the bed frames of the working stands of rolling mills

Authors:
A. V. Kokovikhin
About authors
  • G.I. Nosov Magnitogorsk State Technical University
Date submitted:
2003-07-10
Date accepted:
2003-08-13
Date published:
2004-12-27

Abstract

Improvement of production efficiency and quality of rolled products is directly related to the reliability of parts and components of the main equipment. One of the problems, typical for the bed frames of rolling mills, is the wear of the contact surfaces of roll pads and the inner surface of the beds. Wear of surfaces leads to increased clearances, which, in its turn, leads to various violations in the adjustment of work stands: misalignment of work rolls axes, misalignment of work and support rolls axes, the combined effect of misalignment of work rolls axes and misalignment of work and support rolls axes. These effects, acting in combination, lead to the emergence of axial forces on the rolls, up to 20% of the rolling force. As a result of these forces, failure of roller bearings is observed. There are various methods to control gaps occurring in the system "roll cushion - bed frame", both technological and constructive.

Коковихин А.В. Проблема увеличения зазоров в станинах рабочих клетей прокатных станов // Записки Горного института. 2004. Т. № 2 159. С. 85-87.
Kokovikhin A.V. The problem of increasing the clearances in the bed frames of the working stands of rolling mills // Journal of Mining Institute. 2004. Vol. № 2 159. p. 85-87.
Go to volume 159

References

  1. А.с. 1635386 СССР. МКИ В21В 31/04. Рабочая клеть листового прокатного стана. Заявлено 31.07.89. Опубл. 27.06.95. Бюл. № 2
  2. Бровман М.Я. Усовершенствование конструкции облицовочных планок станин прокатных станов / М.Я.Бровман, А.В.Сатонин // Изв. вузов. Черная металлургия. 1998. № 11. С.73-74.
  3. Гарцман С.Д. Повышение долговечности элементов приводов и рабочих клетей станов горячей прокатки за счет снижения динамических нагрузок / С.Д.Гарцман, А.А.Жуков, З.П.Каретный // Производство проката. 1998. № 8. С.27-31.
  4. Патент 2110341 РФ. МКИ В21В 31/32. Рабочая клеть прокатного стана / С.М.Чумаков, В.Д.Плахтин. Заявлено 15.05.97. Опубл. 10.05.98. Бюл. № 13.
  5. Прокатное производство / П.И.Полухин, Н.М.Федосов, А.А.Королев, Ю.М.Матвеев. М.: Металлургиздат, 1960. 966 с.

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