The invention belongs to the technical field of tower cranes, and particularly relates to a backward tilting tower falling prevention device with a dismountable balancing weight, a tower crane and a method. The backward tilting tower falling prevention device comprises the movable dismountable balancing weight, an arm support, a hydraulic damper and an upper support; the boom is connected with the upper support through a pin shaft, and the fixed pin shaft on the side of the cargo boom is in detachable connection; the movable falling-off type balancing weight is mounted at the tail part of a balancing arm of the arm frame; and the hydraulic damper is arranged between the upper support and the cargo boom. The method comprises the steps that when the lifting wire rope is broken, the lifting side of the arm support is separated from the upper support, the arm support inclines upwards, the balance weight is separated from the tail of the balance arm, the tower crane inclines forwards under the dead weight, and the arm support is in the horizontal state through unloading of the hydraulic damper. When a sudden unloading working condition is encountered, a connecting pin shaft of the balance arm side slewing tower body and the upper support is used as a hinge point, the cargo boom side slewing tower body is separated from the upper support, the falling-off balance weight falls off, and the whole machine is prevented from overturning by adopting the mode that the arm frame and the tower body can be separated.

    本发明属于塔式起重机起重机技术领域,具体涉及一种平衡重可脱落的后倾防倒塔装置、塔式起重机及方法,包括移动可脱落式平衡重、臂架、液压阻尼器、上支座;臂架通过销轴与上支座连接,且起重臂侧的固定销轴为可脱落式连接;移动可脱落式平衡重安装在臂架的平衡臂尾部;液压阻尼器安装在上支座上和起重臂之间。其方法为当提升丝绳断裂时,臂架的起重侧与上支座分离,臂架上倾,平衡重从平衡臂尾部脱出,塔机在自重下前倾,通过液压阻尼器卸载,使臂架就位在水平状态。本发明在遇到突然卸载工况时,以平衡臂侧回转塔身与上支座连接销轴为铰点,起重臂侧回转塔身与上支座分离,可脱落平衡重脱落,采用这种臂架与塔身可分离的方式来避免整机倾覆。


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    Titel :

    Backward-tilting tower falling prevention device with balancing weight capable of falling off, tower crane and method


    Weitere Titelangaben:

    一种平衡重可脱落的后倾防倒塔装置、塔式起重机及方法


    Beteiligte:
    YUAN SHAOZHEN (Autor:in) / MI CHENGHONG (Autor:in) / YI LEI (Autor:in) / ZHENG HUAIPENG (Autor:in) / HUANG SHUAI (Autor:in) / LIU LEI (Autor:in) / ZHANG YANGYANG (Autor:in)

    Erscheinungsdatum :

    2023-07-11


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66C Krane , CRANES



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