SMALL-SIZE HAND WINCH

FIELD: materials lifting facilities. SUBSTANCE: proposed small-size hand winch has chain load mechanism, planetary reduction gear with planet pinions, brake mechanism with mechanical drive, and handle. Planet pinions of planetary reduction gear are installed on metal fluoroplastic bearings. Accordin...

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Bibliographic Details
Main Authors CHERNOV G.G, TJUNIN V.I, JAKOVLEV A.V
Format Patent
LanguageEnglish
Russian
Published 10.01.2003
Edition7
Subjects
CAPSTANS
HAULING
HOISTING
HOISTS
LIFTING
PERFORMING OPERATIONS
TACKLES, e.g. PULLEY BLOCKS
TRANSPORTING
WINCHES
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Summary:FIELD: materials lifting facilities. SUBSTANCE: proposed small-size hand winch has chain load mechanism, planetary reduction gear with planet pinions, brake mechanism with mechanical drive, and handle. Planet pinions of planetary reduction gear are installed on metal fluoroplastic bearings. According to invention, mechanical drive of brake mechanisms is made in form of two spring-loaded clutch members engaging with shaft-gear of brake mechanism. Clutch members are essentially two bushings with end face cams in form of large pitch double-start helical surface. Splines are made on one of clutch members to engage with spring-loaded pawl installed in handle. Brake engages through shaft-gear and planet pinions with drum by means of thrust ring. EFFECT: improved reliability and convenience in operation. 3 dwg _
Bibliography:Application Number: RU19990126349