To provide a drive device that can inhibit a foreign matter, such as sediment, from entering the inside via a seal part between a stationary case and a rotary case, and to provide a work machine and a flange.SOLUTION: A drive device 20 includes: a stationary case 22; a rotary case 30 rotatable about an axis line A relative to the stationary case 22; a seal part 24 between the stationary case 22 and the rotary case 30; and a flange part 35 projecting in a radial direction dr centered on the axis line A from an outer wall part 32 of the rotary case 30. The flange part 35 has a passage 37 communicating with one side from the other side in proximity to the seal part 24 in an axial direction da.SELECTED DRAWING: Figure 2

    【課題】土砂等の異物が固定ケースと回転ケースとの間のシール部を介して内部に入り込むことを抑制し得る駆動装置、作業機械及びフランジを提供する。【解決手段】駆動装置20は、固定ケース22と、固定ケース22に対して軸線A周りに回転可能に構成された回転ケース30と、固定ケース22と回転ケース30との間のシール部24と、回転ケース30の外壁部32から軸線Aを中心とする径方向drに突出しているフランジ部35と、を備え、フランジ部35が、軸線方向daに沿ってシール部24に近接する一方側から他方側へ通じる通路37を有する。【選択図】図2


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    Title :

    DRIVE DEVICE, WORK MACHINE, AND FLANGE


    Additional title:

    駆動装置、作業機械及びフランジ


    Contributors:

    Publication date :

    2020-03-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16H Getriebe , GEARING / B62D MOTOR VEHICLES , Motorfahrzeuge / F16J Kolben , PISTONS



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