Top rushing prevention device for lifting hook of overhead and portal crane

The utility model relates to an anti-top-rushing device for a lifting hook of a portal crane, which solves the safety problem of use in an extremely cold working site. The sections of the upper fixing support and the lower fixing support are U-shaped in opposite directions, the upper ends of two ver...

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Hauptverfasser: ZHU MING, WU MINGYI, LI YANHUI, ZHOU HOUSHAN, XIE LEI, FENG MINGWEI, LIU LI
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Sprache:chi ; eng
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creator ZHU MING
WU MINGYI
LI YANHUI
ZHOU HOUSHAN
XIE LEI
FENG MINGWEI
LIU LI
description The utility model relates to an anti-top-rushing device for a lifting hook of a portal crane, which solves the safety problem of use in an extremely cold working site. The sections of the upper fixing support and the lower fixing support are U-shaped in opposite directions, the upper ends of two vertical walls of the U-shaped upper fixing support are connected with the lower portion of the winch, a round plate is arranged on the bottom face of the U-shaped upper fixing support, a safety pin linkage device is fixedly installed on the round plate, and symmetrical grooves are formed in the two sides of a cylindrical hole of the round plate and located in a shaft of a rectangular plate. The inclined surface of the safety pin is matched with a top block; the top block is matched with a hole in a shaft of the rectangular plate; the large end of the top block is matched with the inclined surface of the safety pin; the small end of the top block is matched with the large edge of a safety pin linkage device; and the s
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subjects CRANES
HAULING
HOISTING
LIFTING
LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES
PERFORMING OPERATIONS
TRANSPORTING
title Top rushing prevention device for lifting hook of overhead and portal crane
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