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Vol 159 No 2
Pages:
75-77
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RUS
Research article
Mining electromechanics

Technique for evaluating the tightness of hydraulic props of mechanized roof supports

Authors:
K. G. Buyalich
About authors
  • Kemerovo Kuzbass State Technical University
Date submitted:
2003-07-22
Date accepted:
2003-08-17
Date published:
2004-12-27

Abstract

The technique of an estimation of tightness of hydraulic props of mechanical supports which is reduced to the decision of two basic problems is offered: definition of a gap between the piston and the cylinder in a place of a seal and revealing of character of deformation of a seal in this gap under the influence of pressure of a working liquid. The character of seal operation and determination of gaps are established by means of the finite element method as a result of solving the model of joint interaction of seal, cylinder, piston, rod, gland bush and working fluid taking into account material properties and real working conditions of the hydraulic prop.

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References

  1. Буялич К.Г. Расчет манжеты для уплотнения поршня силового гидроцилиндра // Информационные недра Кузбасса: Тр. Ш регион. науч.-практич. конф. Кемерово: Изд-во ИНТ, 2004. С.268-269.
  2. Буялич Г.Д. Оценка герметичности гидростоек механизированных крепей / Г.Д.Буялич, В.В.Воеводин, К.Г.Буялич // Динамика и прочность горных машин: Сб. тр. П Междунар. конф., 28-29 мая / Ин-т горн. дела СО РАН. Новосибирск, 2003. Т.2. С.86-88.

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