Lifting device for aluminum oxide single crystal growth

The utility model discloses a lifting device of a special device for aluminum oxide single crystal growth under a high-temperature and high-vacuum state. A lifting rod is of a double-interlayer structure of a water jacket. The water jacket is cooled through cooling water. The lifting rod can rotate horizontally by 360 degrees along a fixing shaft in a mode of being parallel with a stand column and is fixed at any angle. A lifting system is divided into an upper layer and a lower layer; a transverse column at the upper layer plays a role in bearing rotation of the lifting rod, cooling of a seed rod, vacuum sealing and weight measuring and supporting; a stand column at the lower layer is used for lifting of the whole device, automatic/manual switching and supporting of the transverse column. The aims of high temperature and vacuum protection of the lifting rod and the aims of manual crystal guiding and automatic and accurate lifting in the single crystal growth process are achieved, and the quality of single cr