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A Study on the Thermal Characteristics of a High Speed Spindle according to the Cooling Existence of Rear Part and the Cooling Conditions  

Choi, Dae-Bong (한국기계연구원)
Kim, Soo-Tae (창원대학교 기계공학과)
Lee, Seog-Jun (창원대학교 대학원 기계공학과)
Kim, Chang-Yong (화천 기공)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.11, no.1, 2012 , pp. 50-55 More about this Journal
Abstract
The important problem in high speed spindle is to reduce and minimize the thermal effect by motor and bearing. This paper presents the thermal characteristic analysis for a high speed spindle with and without cooling at the rear part, considering the viscosity and the flow rate of cooling oil. A high speed spindle is composed of angular contact ceramic ball bearings, high speed built-in motor, oil jacket cooling and so on. The thermal analyses of high speed spindle need to minimize the thermal effect and maximize the cooling effect and they are carried out under the various cooling conditions. Heat generations of the bearing and the high speed motor are estimated from the theoretical and experimental data. This result can be applied to the design and manufacture of a high speed motor spindle.
Keywords
High Speed Motor Spindle; Cooling Condition; Rear Cooling Jacket; Thermal Displacement; Temperature Distribution;
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  • Reference
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