Abstract
In order to obtain the optimal cooling water velocity, the relationship between motor spindle temperature and cooling water velocity was derived by using the heat transfer and fluid mechanics. When the cooling water velocity was relatively small, its change has significantly influence on cooling effect; But when the cooling water velocity was relative large, the difference in cooling effect was inappreciable. Motor spindles water cooling system based on the software of ANSYS CFX was established. The cooling water velocity and temperature distribution in circular channel was analyzed. Motor spindle temperature of theory and simulation was compared under different cooling water velocity; Experiments were conducted according to the results of the simulation, Experimental temperature is consistent with simulation results, which verify the validity of motorized spindle simulation analysis and theoretical derivation. The study in this paper provides a reference for the motorized spindle selecting the rational velocity of cooling water.
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