Raise drill assembly with two-piece planetary third reduction hub and out put shaft

A two-piece planetary hub and output shaft for use in a planetary reduction gear drive assembly for a raise drill having a drive motor and a drive train path including first, second and third reduction gearing driving the planetary hub and output shaft. The hub and shaft are formed as two major piec...

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LLEWELLAN
description A two-piece planetary hub and output shaft for use in a planetary reduction gear drive assembly for a raise drill having a drive motor and a drive train path including first, second and third reduction gearing driving the planetary hub and output shaft. The hub and shaft are formed as two major pieces, an upper hub and a lower output shaft which are rigidly interconnected by three planet gear shafts each engaging a hole in said hub and a recess in said lower output shaft. Such interconnection is suitably by taper lock bushing assemblies locking the shafts to both said hub and said shaft. Transfer of torque occurs essentially through the planet shafts and the hub, and transfer of load occurs essentially through the output shaft.
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The hub and shaft are formed as two major pieces, an upper hub and a lower output shaft which are rigidly interconnected by three planet gear shafts each engaging a hole in said hub and a recess in said lower output shaft. Such interconnection is suitably by taper lock bushing assemblies locking the shafts to both said hub and said shaft. 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The hub and shaft are formed as two major pieces, an upper hub and a lower output shaft which are rigidly interconnected by three planet gear shafts each engaging a hole in said hub and a recess in said lower output shaft. Such interconnection is suitably by taper lock bushing assemblies locking the shafts to both said hub and said shaft. Transfer of torque occurs essentially through the planet shafts and the hub, and transfer of load occurs essentially through the output shaft.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record>
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subjects BLASTING
ENGINEERING ELEMENTS AND UNITS
GEARING
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
THERMAL INSULATION IN GENERAL
WEAPONS
title Raise drill assembly with two-piece planetary third reduction hub and out put shaft
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