Array radial rotating heat pipe grinding wheel and its preparation method and application

Abstract

This invention discloses an array-type radial rotating heat pipe grinding wheel, its preparation method, and its application, relating to the field of high-efficiency grinding tool technology. The grinding wheel includes a base, a cover plate, a plug, a liquid working fluid, and an abrasive layer. The base and cover plate are joined together to form an integrated sealed structure, with an array-type radial heat pipe channel inside. The heat pipe channel consists of a shared annular evaporation chamber, a condensation chamber, and multiple array-type direct-flow channels connecting the two. This design retains most of the reinforcing ribs within the base to ensure excellent structural strength and rigidity under high-efficiency grinding conditions. During grinding, the working fluid is driven by grinding heat and centrifugal force, completing a phase change cycle between the evaporation chamber and the condensation chamber via the direct-flow channels. This invention effectively avoids the vapor-liquid mixing and stagnation phenomena within the large annular cavity of traditional radial rotating heat pipe grinding wheels, rapidly dissipating heat accumulated in the grinding arc region, significantly enhancing heat exchange efficiency, and greatly improving the service life and machining accuracy stability of the grinding wheel while suppressing workpiece thermal damage.

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