Method and apparatus for withdrawing a machine shaft
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United States of America Patent
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Mar 21, 1995
Grant Date -
N/A
app pub date -
Feb 26, 1993
filing date -
Feb 26, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The new method relates to a machinery assembly having (a) a housing, (b) an eccentric confined in the housing, (c) a shaft extending into the eccentric and (d) a shaft axis of rotation. A method for moving the shaft with respect to the housing includes the steps of applying a support force at a point on the housing so that such force places the housing substantially in equilibrium with respect to the axis. A withdrawing force is then applied to the shaft in a direction generally parallel to the axis. A jacking mechanism contacts the housing at a point to apply a support force to such housing. The force magnitude and direction place the housing substantially in equilibrium with respect to the axis to reduce or eliminate frictional forces.
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