The invention discloses a large crawler-type telescopic crane chassis which comprises a connecting flange, a center base is arranged at the bottom of the connecting flange, a telescopic mechanism is arranged on the center base, a connecting apron board A and a connecting apron board B are arranged on the telescopic mechanism, the connecting apron board A is connected with a right main beam, and the connecting apron board B is connected with a left main beam. And a left main beam is arranged on the connecting apron board B. Under the non-working condition, the right main beam and the left main beam can be retracted to the shortest state in the left-right direction, vehicle migration and transportation in the non-working state are facilitated, under the working condition, the left beam and the right beam are stretched, the vehicle ground contact area is increased, the vehicle is stabilized to the maximum extent, and the operation safety is improved; and the connecting flange is mounted at the top of the central base, so that the problems that the existing crane chassis is inconvenient to move and transport under a non-working condition due to incapability of stretching and retracting, and the crane is low in use efficiency due to instable walking under a working condition are solved.

    本发明公开了一种大型履带式可伸缩式起重机底盘,包括连接法兰,所述连接法兰底部设有中心底座,所述的中心底座上设有伸缩机构,所述的伸缩机构上设有连接裙板A和连接裙板B,所述的连接裙板A上连接有右主梁,所述的连接裙板B上设有左主梁。本发明能在非工作工况下,右主梁和左主梁,左右缩至最短状态,便于非工作状态的车辆迁移运输,在工作工况下,将左右梁伸开,加大车辆触地面积,最大限度稳固车辆,提高作业安全性,起重机车体通过车辆定位块进行定位后,通过连接法兰安装到中心底座的顶部,避免现有的起重机底盘由于不能伸缩,导致在非工作情况下不便于车辆迁移运输,在工作情况下起重机行走不够稳固,导致起重机使用效率低的问题。


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    Title :

    Large crawler-type telescopic crane chassis and machining method thereof


    Additional title:

    一种大型履带式可伸缩式起重机底盘及其加工方法


    Contributors:
    MA ZHENJIAN (author) / XIONG HUAYUN (author) / CHEN GAOPING (author) / BAI SHILONG (author) / XU HEJIAN (author)

    Publication date :

    2023-05-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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