INVERTER-CONTROLLED HOIST

PURPOSE: To control the winding/lowering speed of a hoist by inverter control over a wide range. CONSTITUTION: Using a hoist with a crawling function which controls selective operation of a winding drum with either of a motor 11 for high-speed or a motor 21 for crawling speed, the motor 11 for high-...

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Bibliographic Details
Main Authors IMAI HIDEYUKI, KIMURA KIYOTAKA
Format Patent
LanguageEnglish
Published 10.09.1996
Edition6
Subjects
CAPSTANS
HAULING
HOISTING
HOISTS
LIFTING
PERFORMING OPERATIONS
TACKLES, e.g. PULLEY BLOCKS
TRANSPORTING
WINCHES
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Summary:PURPOSE: To control the winding/lowering speed of a hoist by inverter control over a wide range. CONSTITUTION: Using a hoist with a crawling function which controls selective operation of a winding drum with either of a motor 11 for high-speed or a motor 21 for crawling speed, the motor 11 for high-speed and the motor 21 for crawling speed are driven respectively by an inverter 14 for high-speed and an inverter 24 for crawling speed, and the inverters are controlled by operating an operating part 30.
Bibliography:Application Number: JP19950039595