The invention relates to the field of engineering machinery, in particular to engineering machinery and a supporting leg box assembly thereof. The engineering machinery comprises a chassis and the supporting leg box assembly. The supporting leg box assembly comprises a box, a vertical cylinder and a supporting foot base connected to a ball head of the lower end of the vertical cylinder. The supporting foot base comprises a push-pull sliding groove matched with the ball head. The two sides of the push-pull sliding groove in the groove width direction are provided with bearing arms. The box is provided with a bearing base, or the box is provided with the bearing arms. The two sides of the push-pull sliding groove in the groove width direction are provided with bearing seats. The bearing armscan be inserted into the bearing seats and is in pilot fit with the bearing seats. The supporting foot base has a storage state of being suspended on the box through cooperation of disengagement fromthe ball head and cooperation of the bearing arms and the bearing seats in the motion direction that the push-pull sliding groove is in sliding fit with the ball head. Through the supporting leg boxassembly of the engineering machinery, the problems that the retraction distance of a supporting foot base is small and the adjusting effect is limited in the prior art can be solved. The engineeringmachinery has the advantage of high passing ability when the supporting foot base is stored.

    本发明涉及工程机械领域,特别涉及一种工程机械及其支腿箱总成。该工程机械包括底盘和支腿箱总成,该支腿箱总成包括箱体、垂直油缸和连接在垂直油缸下端的球头上的支脚座,支脚座包括与球头适配的推拉滑槽,推拉滑槽的槽宽方向两侧设有承力臂,箱体上设有承载座,或是箱体上设有承力臂,推拉滑槽的槽宽方向两侧设有承载座;承力臂能够插入承载座内并与承载座导向配合;在支脚座沿推拉滑槽与球头滑动配合的运动方向上,支脚座具有与球头脱离配合、并依靠承力臂与承载座的配合而吊挂在箱体上的收起状态。该工程机械中的支腿箱总成可以解决现有技术中支脚座缩回距离小、调节效果有限的问题,使该工程机械具有在收起支脚座后具有通过性高的优点。


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    Title :

    Engineering machinery and supporting leg box assembly thereof


    Additional title:

    工程机械及其支腿箱总成


    Contributors:
    CHU JINFU (author) / ZHOU DONGXIAO (author) / YIN TENGFEI (author) / CHAI SHUHE (author) / XU HONGFEI (author) / WANG CHUANG (author) / XIA XUDONG (author)

    Publication date :

    2020-07-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES / B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen



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