The invention provides a rear axle suspension device and a paddy field operation machine. The rear axle suspension device comprises a machine frame, a rear axle located under the machine frame, an elastic piece connected with the rear axle and the machine frame, and a limiting mechanism arranged between the rear axle and the machine frame. When the inclination angle of the rear axle relative to the machine frame is not greater than an inclination angle threshold value, a moving space is formed between at least one of a rack and the rear axle and the limiting mechanism; and when the inclination angle of the rear axle relative to the rack reaches an inclination angle threshold value, the limiting mechanism locks the rack and the rear axle. The paddy field operation machine comprises the rear axle suspension device. When the inclination angle of the rear axle relative to the rack reaches an inclination angle threshold value, the limiting mechanism locks the rack and the rear axle and limits the rear axle to continuously rotate relative to the rack, so that the safety distance between wheels and the rack is guaranteed, and mutual interference and collision between the wheels and the rack are prevented.

    本发明提供了一种后桥悬挂装置及水田作业机。后桥悬挂装置包括机架、位于所述机架下方的后桥、连接所述后桥与所述机架的弹性件、设置在所述后桥和机架之间的限位机构,所述后桥相对所述机架的倾斜角度不大于倾斜角阈值时,所述机架和所述后桥中的至少一个与所述限位机构之间具有活动空间;所述后桥相对所述机架的倾斜角度达到倾斜角阈值时,所述限位机构锁止所述机架和后桥。水田作业机包括所述的后桥悬挂装置。当后桥相对机架的倾斜角度达到倾斜角阈值时,限位机构锁止机架和后桥,限制后桥相对机架继续旋转,从而保障车轮与机架的安全距离,防止车轮与机架相互干涉撞击。


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    Title :

    Rear axle suspension device and paddy field operation machine


    Additional title:

    后桥悬挂装置及水田作业机


    Contributors:
    WANG KEJIU (author) / XU ZHENGHUA (author) / ZHANG WEIQUAN (author)

    Publication date :

    2021-04-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge



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