The invention discloses a triangular supporting and tensioning assembly structure for an excavator crawler belt and an excavator. The triangular supporting and tensioning assembly structure comprises a guide wheel assembly, a tensioning assembly and a supporting assembly. The guide wheel assembly comprises a first mounting seat, a first guide wheel, a second mounting seat and a second guide wheel; the supporting assembly comprises a first supporting rod and a second supporting rod; the tensioning assembly comprises a first tensioning oil cylinder, a second tensioning oil cylinder and a piston rod. An oil inlet channel is formed in the piston rod and communicated with the interior of the second tensioning oil cylinder, an oil injection valve communicated with the oil inlet channel is arranged on the piston rod, lubricating grease is injected into the second tensioning oil cylinder through the oil injection valve, and the tensioning force of the tensioning assembly structure is adjusted by controlling the amount of the lubricating grease in the oil cylinder. The excavator crawler belt is tensioned from two directions by arranging the two guide wheels, so that the stress of a single guide wheel can be effectively reduced, and the situation that the crawler belt is derailed due to the fact that foreign matter is drawn between the guide wheels and the crawler belt is avoided.

    本发明公开一种挖掘机履带用的三角形支承张引总成结构和挖掘机,包括:引导轮组件、张紧组件和支撑组件。引导轮组件包括第一安装座和第一引导轮,第二安装座和第二引导轮;支撑组件包括第一支撑杆和第二支撑杆;张紧组件包括第一张紧油缸、第二张紧油缸和活塞杆;活塞杆的内部具有进油通道,进油通道与第二张紧油缸的内部相连通,活塞杆上设置有与进油通道连通的注油阀,润滑脂通过注油阀注入到第二张紧油缸内,通过控制油缸内润滑脂量的大小,以调节张引总成结构的张紧力大小。通过设置两个引导轮从两个方向对挖掘机履带进行张紧,能够有效减小单个引导轮的受力大小,避免引导轮与履带之间卷入异物,导致履带脱轨的情况发生。


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    Title :

    Triangular supporting and tensioning assembly structure for crawler belt of excavator and excavator


    Additional title:

    挖掘机履带用的三角形支承张引总成结构和挖掘机


    Contributors:
    LIU BIN (author) / XIA BINGFU (author) / CHANG YANHONG (author) / LIU PEILIN (author) / YANG ZHENG (author)

    Publication date :

    2024-11-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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