Radial deformations of working cylinder of hydraulic Legs depending on their extension

[摘要] Current methods of calculation of parameters of hydraulic legs of powered supports are in most cases analytical and do not consider all complex of factors. Finite element model was developed to study this problem and used to analyze the influence of hydraulic legs extension on radial deformations of cylinder of different producers of powered supports at variation of hydraulic fluid pressure. It was revealed that radial deformations of cylinders along the axis of hydraulic legs increase in magnitude in direct proportion to the hydraulic fluid pressure and extension. Research results can be recommended to define optimal geometric parameters of hydraulic legs in respect to the minimal radial deformations of hydraulic cylinder increasing its impermeability and improving the work of cup seals. It is recommended to use the obtained results at power support designing.

[发布机构] T.F. Gorbachev Kuzbass State Technical University, Vesennaya Str. 28, Kemerovo; 650000, Russia^1;Yurga Institute of Technology of Tomsk Polytechnic University, Leningradskaya Str. 26, Yurga; 652055, Russia^2;Institute of Coal of SB RAS, Leningradskiy Ave. 10, Kemerovo; 650060, Russia^3

[效力级别] 经济学 [学科分类] 工业工程学

[关键词] Hydraulic cylinders;Powered support;Radial deformation;Research results