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Fixed Frame with shear sprocket and/or Anchor cutout overload
protection, and Floating Frame with limit switch overload
protection. The inner frame of the floating frame type is spring loaded
and designed to "float," or "travel" within the fixed frame in case of
excessive chain pull. The travel distance is used to trip a limit
switch, shutting off the drive to prevent damage to conveyor components,
Electrical overload protection simplifies re-start of the system after
eliminating the source of the malfunction. Both fixed and floating frame
types are available in right or left hand configuration. Right hand
configuration is illustrated.
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Quick Links
Typical Caterpillar Drives
Fixed Frame
Floating Frame |
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Construction of this style drive unit is based on the use of Anchor
standard 2" pitch precision roller drive chain. Forged steel drive dogs,
properly spaced in the chain, transfer driving force to the conveyor.
Accurate relationship is maintained between the driving and conveyor
chain by a hardened steel backup bar and by hardened precision ball
bearing roller. Proper tension for the driving chain is supplied by the
take-up assembly which utilizes double row tapered bearing construction.
Caterpillar drive units are installed on straight sections of the
conveyor. This allows for installation of the unit at almost any
position of the system - a feature of particular advantage when designed
for multiple drive applications. This style unit is also less critical
of mixes of old and new conveyor chain which may result when systems are
updated or revised. |
