Open AccessResearch on the axial force and water film thickness of water-lubricated thrust bearing for mine high speed rescue pump
Author(s) -
Yuxing Bai,
Zizheng Feng,
Bo Pan,
Dan Huang,
Fangming Wu
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1639/1/012093
Subject(s) - bearing (navigation) , thrust , thrust bearing , axial flow pump , head (geology) , reynolds equation , rotational speed , work (physics) , flow (mathematics) , water flow , specific speed , hydraulic head , mechanics , radial force variation , materials science , power (physics) , lubrication , geotechnical engineering , mechanical engineering , hydraulic pump , geology , engineering , reynolds number , centrifugal pump , computer science , physics , reciprocating pump , quantum mechanics , geomorphology , artificial intelligence , impeller , turbulence
Due to the limitation of mine well size and the requirement of rapid rescue for flooding, a mine high speed rescue pump with small volume and large head is developed and designed. According to the hydraulic characteristics and structure of rescue pump, the axial force under 6 different speeds and 4 different flow conditions are studied. The water lubricated thrust bearing is designed. The Reynolds equation is solved by finite difference method to solve the minimum thickness of water film under the above conditions. The results show that: the axial force increases with the rise of rotating speed; the smaller the axial force, the larger the water film thickness, the greater the change amplitude of water film thickness. The research work in this paper can provide guidance for the follow-up research of high speed and big power mine rescue pump.