PT Journal
AU Wu, H
   Wang, K
   Sun, G
   Zhao, L
TI Influence Study of Oil Film Thrust Bearing on Thermal Characteristics of High-speed Precision Roll Grinding Head
SO Manufacturing Technology Journal
PY 2018
BP 330
EP 336
VL 18
IS 2
DI 10.21062/ujep/101.2018/a/1213-2489/MT/18/2/330
DE High-speed precision roll grinding head; Oil film thrust bearing; Thermal performance; Optimize design
AB Aiming at a kind of grinding head of high-speed precision roll grinder, its structure characteristics and heat source characteristics are analysed, and the characteristics of heat source is calculated. On these bases, the weakness of grinding thermal characteristics is found through the numerical analysis of thermal performance of roll grinding head, facing the thermal error of sensitive area, optimization method which unites multi objective and single objective are adopted to optimize the thrust oil film bearing of the roll grinding head, after that numerical analysis of thermal performance of roll grinding head is analysed. Analysis results show as follows: temperature of the optimized oil film thrust bearing is improved obviously. The oil film performance between the bearing and the main shaft is stability, and it has had effective prevent the phenomenon of metal dry friction happening. As a result, the grinding accuracy of the grinding roll is effectively improved.
ER