The purpose of the present invention is to improve travelability and workability. A crawler traveling device (20) is provided with: a first wheel (22); a second wheel (23) disposed so as to be separated from the first wheel (22); a support frame (24) that supports the first wheel (22) and the second wheel (23); a third wheel (25) disposed above the support frame (24); an annular crawler (21) for the second wheel (23) and the third wheel (25); and a vehicle height changing mechanism (30) for changing the position of the support frame (24) in the vertical direction with respect to the third wheel (25). In addition, the vehicle height changing mechanism (30) is provided with an actuator (31) capable of contracting in the vertical direction and changing the position of the support frame (24) relative to the third wheel (25) in the vertical direction.

    使行驶性·作业性提高。履带行驶装置(20)具备第一车轮(22)、与第一车轮(22)分离地配置的第二车轮(23)、支承第一车轮(22)与第二车轮(23)的支承框架(24)、配置于支承框架(24)的上方的第三车轮(25)、卷绕于第一车轮(22),第二车轮(23)以及第三车轮(25)的环状的履带(21)、及变更支承框架(24)相对于第三车轮(25)的铅垂方向的位置的车高变更机构(30)。另外,车高变更机构(30)具有能够在铅垂方向上收缩且变更支承框架(24)相对于第三车轮(25)的铅垂方向的位置的促动器(31)。


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    Title :

    Crawler travel device and work machine provided with same


    Additional title:

    履带行驶装置以及具备该履带行驶装置的作业机


    Contributors:

    Publication date :

    2022-07-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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