To provide a barrier for an undercarriage of a construction machine, designed such that a distance between crawler units can easily be extended/shortened, a crawler frame is made less likely to be damaged, and weight and manufacturing costs can be reduced.SOLUTION: In an undercarriage of a construction machine of the present invention, a pair of axles stretched between through-holes of respective crawler frames of a pair of crawler units, comprises: an axle body; extension parts projecting outward in a vehicle width direction of the crawler frames and at both ends of the axle body and rotatable in a traveling direction from the vehicle width direction; mounting members respectively composed on the extension parts detachably and fixing the extension parts in the vehicle width direction. Each of the extension part has a lower abutment surface abutting on the lower surface of the through-hole. Each mounting member attached to the axle located at front in a travel direction has a front abutment surface abutting on the front surface of the through-hole in a traveling direction. Each mounting member attached to the axle located at rear in the travel direction has a rear abutment surface abutting on the rear surface of the through-hole in the traveling direction.SELECTED DRAWING: Figure 2

    【課題】本発明は、クローラユニットの間隔の拡縮が容易に行えるとともに、クローラフレームに損傷を与えにくく、かつ重量及び製造コストを低減できる建設機械の走行体の提を課題とする。【解決手段】本発明の建設機械の走行体は、一対のクローラユニットの各クローラフレームの貫通孔間に架け渡される一対のアクスルが、アクスル本体と、このアクスル本体の両端に、上記クローラフレームの車幅方向外側に突出し車幅方向から走行方向へ回動可能な延長部と、上記延長部に着脱可能に構成され、上記延長部を車幅方向に固定する取付部材とを有し、上記延長部が、上記貫通孔の下面に当接する下当接面を有し、走行方向前方の上記アクスルに装着される取付部材が、上記貫通孔の走行方向前面に当接する前当接面を有し、走行方向後方の上記アクスルに装着される取付部材が、上記貫通孔の走行方向後面に当接する後当接面を有する。【選択図】図2


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    Title :

    UNDERCARRIAGE FOR CONSTRUCTION MACHINE


    Additional title:

    建設機械の走行体


    Contributors:

    Publication date :

    2019-11-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / B60B VEHICLE WHEELS , Räder für Fahrzeuge



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