The invention provides a crawler frame telescopic device and a crane, and relates to the technical field of cranes. The crawler frame telescopic device comprises a base, crawler frames arranged on thetwo sides of the base and telescopic mechanisms arranged at the two ends of the base, the crawler frames are slidably arranged relative to the base, the fixed ends of the telescopic mechanisms are rotationally connected with the base, and the telescopic ends of the telescopic mechanisms are detachably connected with the crawler frames; after the telescopic mechanism drives the crawler frame on one side of the base to stretch out or retract, the telescopic end is detached to be connected with the crawler frame on the other side of the base so as to drive the crawler frame on the side of the base to stretch out or retract, then stretching out or retracting of the crawler frames on the two sides of the base is completed, and stress balance during stretching out or retracting of the crawler frames on the two sides of the base is achieved, the extension or retraction are smooth, and the clamping stagnation problem is avoided. According to the crane, the crawler frame telescopic device is used, the crawler frames are stressed uniformly during extension or retraction, the extension and retraction are smooth, the clamping stagnation problem is avoided, and it is guaranteed that the craneis kept in a normal working state.

    本发明提供了一种履带架伸缩装置及起重机,涉及起重机技术领域。履带架伸缩装置包括底座、设置在底座两侧的履带架及设置在底座两端的伸缩机构,履带架相对底座滑动设置,伸缩机构的固定端与底座转动连接,伸缩机构的伸缩端可拆卸的与履带架连接,当伸缩机构驱动底座一侧的履带架完成伸出或收缩后,将伸缩端拆卸下来与底座另一侧的履带架连接,以驱动底座该侧的履带架完成伸出或收缩,进而完成底座两侧的履带架的伸出或收缩,实现底座两侧的履带架伸缩时受力均衡,伸缩平稳,不会出现卡滞问题。起重机,使用了上述的履带架伸缩装置,履带架伸缩时受力均衡,伸缩平稳,不会出现卡滞问题,保证起重机维持正常工作状态。


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    Title :

    Crawler frame telescopic device and crane


    Additional title:

    一种履带架伸缩装置及起重机


    Contributors:
    CHANG BOHAO (author) / CHEN WEI (author) / TANG PENG (author)

    Publication date :

    2020-09-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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