Rope breakage protection device for amplitude-variable trolley of connecting rod type tower crane

The utility model belongs to the technical field of variable-amplitude trolleys of tower cranes, and discloses a connecting rod type rope breakage prevention protection device for a variable-amplitude trolley of a tower crane, which is connected onto a front main beam and a rear main beam of the var...

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Bibliographic Details
Main Authors YUAN XIAOLONG, HU QICHEN, LI PAN
Format Patent
LanguageChinese
English
Published 16.08.2022
Subjects
CRANES
HAULING
HOISTING
LIFTING
LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES
PERFORMING OPERATIONS
TRANSPORTING
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Summary:The utility model belongs to the technical field of variable-amplitude trolleys of tower cranes, and discloses a connecting rod type rope breakage prevention protection device for a variable-amplitude trolley of a tower crane, which is connected onto a front main beam and a rear main beam of the variable-amplitude trolley through pin shafts, and a ratchet wheel sheet is arranged on a connecting rod and is connected with a vertical plate of the variable-amplitude trolley through a tension spring; the counterweight rod extends out of the variable-amplitude trolley cross beam and is provided with a counterweight block and a steel wire rope ring; the connecting rod and the balance weight lever are connected through a pin shaft and provided with a torsional spring; a front rope of the variable-amplitude trolley penetrates into the counterweight rope ring to be fixed on the wedge block, a rear rope of the variable-amplitude trolley penetrates into the counterweight rope ring to be fixed on the tensioning device, wh
Bibliography:Application Number: CN202220263816U