Magnetofluid sealing device for compound crystal growth

Abstract

The utility model discloses a magnetofluid sealing device for compound crystal growth, which comprises a hollow rotating shaft, a deep groove ball bearing and an angular contact bearing are respectively arranged on the surface of the hollow rotating shaft, flange seats are fixedly sleeved on the surfaces of the deep groove ball bearing and the angular contact bearing, and space rings are symmetrically arranged between the flange seats and the hollow rotating shaft. A magnetic fluid sealing piece is arranged between the space rings, a cooling channel is formed in an inner cavity of the flange base, and a liquid outlet is formed in the bottom of the flange base. According to the magnetofluid sealing device for compound crystal growth, cooling liquid is conveyed into the cooling channel, so that the whole magnetofluid sealing device is cooled, and high-precision rotation of the hollow rotating shaft in the rotating process can be achieved through a pair of angular contact bearings and deep groove ball bearings; and the integral strength of the space ring can bear higher axial load and radial load, so that the load requirement in the crystal growth furnace body is met.

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