PROBLEM TO BE SOLVED: To attain the simplification of the device configuration of an undercarriage and the reduction of manufacturing cost thereof.SOLUTION: An undercarriage 2 has: front right side and rear right side drive units 64, 65 which cause the right side crawler frame 4 to move right and left upon the width expansion and contraction of the undercarriage 2 and cause the right side part of a track frame 3 to ascend and descend upon jack-up; and front left side and rear left side drive units 66, 67 which cause the left side crawler frame 5 to move right and left upon the width expansion and contraction of the undercarriage 2 and cause the left side part of the track frame 3 to ascend and descend upon jack-up. Front right side and rear right side actuators 69, 87 are configured to obtain a right side expansion and contraction state in which the right side crawler frame 4 is driven right and left and a right side elevation state in which the right side part of the track frame 3 is ascended and descended. Front left side and rear left side actuators 101, 110 are configured to obtain a left side expansion and contraction state in which the left side crawler frame 5 is driven right and left and a left side elevation state in which the left side part of the track frame 3 is ascended and descended.SELECTED DRAWING: Figure 1

    【課題】下部走行体の装置構成の簡素化及び製造コストの削減を図る。【解決手段】下部走行体2は、下部走行体2の幅拡縮時に右側クローラフレーム4を左右に移動させ、ジャッキアップ時にトラックフレーム3の右側部を昇降させる前右側及び後右側駆動装置64,65と、下部走行体2の幅拡縮時に左側クローラフレーム5を左右に移動させ、ジャッキアップ時にトラックフレーム3の左側部を昇降させる前左側及び後左側駆動装置66,67とを有し、前右側及び後右側アクチュエータ69,87は、右側クローラフレーム4を左右に駆動する右側拡縮状態とトラックフレーム3の右側部を昇降させる右側昇降状態とをとり得るように構成され、前左側及び後左側アクチュエータ101,110は、左側クローラフレーム5を左右に駆動する左側拡縮状態とトラックフレーム3の左側部を昇降させる左側昇降状態とをとり得るように構成される。【選択図】図1


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    Title :

    UNDERCARRIAGE OF WORK MACHINE


    Additional title:

    作業機械の下部走行体


    Contributors:

    Publication date :

    2016-12-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / B66C Krane , CRANES / E02F Baggern , DREDGING



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