Patent ID: 9145326
Filing Date: 2015-09-29
Classification: C03B,Y10T

Abstract:
1. A rotary seal chuck of an optical fiber preform rod deposition lathe, comprising: a fixing seating; and a rotation shaft, wherein the fixing seating is provided with a center hole seat, wherein the center hole seat supports the rotation shaft through a bearing, and one end of the center hole seat is connected to an air pipe; wherein the rotation shaft comprises a hollow rotation shaft provided with a through hole, wherein one end of the through hole is communicated with the air pipe, and the other end of the through hole is provided with a liner pipe seal connection hole seat; wherein a magnetic fluid sealing ring is disposed at the junction of the inner side of the rotation shaft and the center hole seat of the fixing seating so as to form rotation dynamic seal, and the outside of the rotation shaft is connected to a rotation driving disc; and wherein a fixed flange is disposed at the outside of the rotation shaft, and the rotation shaft is connected to the rotation driving disc through the fixed flange.