To provide a turning regulation device capable of preventing the rotation of an upper revolving superstructure with a simple structure while suppressing breakage of the upper revolving superstructure or a lower traveling body.SOLUTION: A turning regulation device of the present disclosure regulates the turning of an upper revolving superstructure with respect to a lower traveling body in a construction machine equipped with the lower traveling body, the upper revolving superstructure mounted to be pivotable horizontally on the lower traveling body, and with a power source to drive the upper revolving superstructure. The turning regulation device comprises an extendable/contractable lock pin from the upper revolving superstructure as the base point to the lower traveling body, a turning angle sensor to detect the turning angle of the upper revolving superstructure with respect to the lower traveling body, a lock pin extension/contraction detector to detect the extended or contracted state of the lock pin, and a controller to control the lock pin extension/contraction. The controller controls such that the lock pin is in a contracted state when the lock pin extension/contraction detector does not detect the contracted state of the lock pin in the state where the power source is activated and when the turning amount of the upper revolving superstructure based on the above turning angle becomes at or above a prescribed value.SELECTED DRAWING: Figure 3

    【課題】本開示は、上部旋回体または下部走行体の破損を抑止しつつ、簡便な構成で上部旋回体の旋回を抑止できる旋回規制装置の提供を目的とする。【解決手段】本開示の旋回規制装置は、下部走行体と、この下部走行体上に水平方向に旋回可能に搭載される上部旋回体と、上記上部旋回体を駆動する動力源とを備える建設機械における上記上部旋回体の上記下部走行体に対する旋回を規制する旋回規制装置であって、上記上部旋回体を基点として上記下部走行体へ伸縮可能なロックピンと、上記上部旋回体の上記下部走行体に対する旋回角度を検出する旋回角度センサと、上記ロックピンの伸長状態または縮小状態を検出するロックピン伸縮検出器と、上記ロックピンの伸縮を制御する制御器とを備え、上記制御器が、上記動力源が始動している状態で、上記ロックピン伸縮検出器が上記ロックピンの縮小状態を検出しておらず、かつ上記旋回角度に基づく上記上部旋回体の旋回量が所定値以上となった場合に、上記ロックピンを縮小状態とする制御を行う。【選択図】図3


    Access

    Download


    Export, share and cite



    Title :

    TURNING REGULATION DEVICE AND CONSTRUCTION MACHINE


    Additional title:

    旋回規制装置および建設機械


    Contributors:

    Publication date :

    2024-12-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES



    TURNING CONTROL METHOD FOR CONSTRUCTION MACHINE, CONSTRUCTION MACHINE AND COMPUTER DEVICE

    LIU JIAN / JIA GAN / DU BIN | European Patent Office | 2022

    Free access

    Turning control method for construction machine, construction machine and computer device

    LIU JIAN / JIA GAN / DU BIN | European Patent Office | 2024

    Free access

    TURNING FRAME AND CONSTRUCTION MACHINE

    NAKA HIROSHI / NAGASHIMA YOSHIAKI | European Patent Office | 2019

    Free access

    TURNING UNIT OF CONSTRUCTION MACHINE

    IWASHITA HIDEKAZU / TERAUCHI KENICHI / HAMASAKI MASATSUGU et al. | European Patent Office | 2024

    Free access

    UPPER TURNING BODY OF CONSTRUCTION MACHINE

    SHINOZAKI TAKAHIRO / MORI TATSUNORI / YAMAGUCHI ZENZO et al. | European Patent Office | 2016

    Free access