A guide wheel assembly is arranged on the front side of a bottom frame and comprises a guide wheel and a rear support, a connecting shaft is arranged on the guide wheel in a penetrating mode in the axial direction, an inner support and an outer support are symmetrically arranged at the two ends of the connecting shaft, and the rear end of the inner support and the rear end of the outer support are both fixedly connected with the rear support. Sliding blocks are arranged on the sides, away from the guide wheels, of the inner support and the outer support, sliding grooves formed in the front-back direction are formed in the bottom frame, the sliding blocks are in sliding connection with the sliding grooves, the upper ends of the sliding blocks are in clearance fit with the upper side walls of the sliding grooves, and elastic assemblies used for driving the guide wheels to float up and down and slide front and back in the sliding grooves are arranged on the bottom frame. According to the small crawler excavator provided by the invention, all forces acting on the riding wheel, the chain wheel, the thrust wheel and the crawler belt are released on the front floating guide wheel, so that the phenomena of excessive tensioning and slipping during operation and driving of the excavator are effectively prevented, and the service life of the crawler belt is prolonged.

    本发明提供一种小型履带式挖掘机,底架前侧设有引导轮组件,引导轮组件包括引导轮和后支座,引导轮沿轴向穿设有连接轴,连接轴两端对称设有内支座和外支座,内支座和外支座后端均与后支座固定连接,内支座和外支座远离引导轮的一侧设有滑块,底架上设有沿前后向设置的滑槽,滑块与滑槽滑动连接,滑块上端与滑槽上侧壁之间间隙配合,底架上设有用于驱动引导轮在滑槽内上下浮动以及前后滑移的弹性组件。本发明提供的一种小型履带式挖掘机,使所有作用在托轮、链轮、支重轮和履带上的力全部在前浮动引导轮上得到释放,有效防止挖机作业和行驶的张紧过渡和打滑现象,从而延长了履带的使用寿命。


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    Titel :

    Small crawler excavator


    Weitere Titelangaben:

    小型履带式挖掘机


    Beteiligte:
    ZHANG NU (Autor:in) / KOU XIAOPENG (Autor:in) / SUN YONGJIAN (Autor:in)

    Erscheinungsdatum :

    2022-03-29


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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