Rotary seal chuck of optical fiber preform rod deposition lathe
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United States of America Patent
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Sep 29, 2015
Grant Date -
Oct 23, 2014
app pub date -
Mar 13, 2012
filing date -
Jun 29, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a rotary seal chuck of an optical fiber preform rod deposition lathe, comprising a fixed socket sleeve and a rotary shaft. The fixed socket sleeve is provided with a central hole base. The central hole base bears the rotary shaft through a bearing. An end of the central hole base is connected to an air hose. The rotary shaft is a hollow rotary shaft provided with a through hole. One end of the through hole communicates with the air hose, and the other end of the through hole is provided with a liner tube connecting sealing hole base. A magnetic fluid seal ring is disposed at a joint between an inner side of the rotary shaft and the central hole base of the fixed socket sleeve, to form a rotary dynamic seal. An outer side of the rotary shaft is connected to a rotary driving disk.
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