PROBLEM TO BE SOLVED: To provide a travel device of a construction machine which inhibits earth and sand from entering into a periphery of a floating seal through a gap formed between a fixed side housing and a rotary side housing to properly maintain sealability of the floating seal over a long time.SOLUTION: A labyrinth 32 is provided at a gap 22 formed between a fixed side end surface 13E of a fixed side housing 13 and a rotary side end surface 15C of a rotary side housing 15. The labyrinth 32 comprises: a fixed side indent part 13F; a fixed side fitting protrusion part 13G; a rotary side fitting protrusion part 15D; and a rotary side indent part 15E. First and second cloth members 33, 34 formed into an annular shape by a cloth material are respectively provided at the fixed side indent part 13F and the rotary side indent part 15E. A grease storage space 35 filled with grease G is provided between the first cloth member 33 and the second cloth member 34.SELECTED DRAWING: Figure 4

    【課題】 固定側ハウジングと回転側ハウジングとの間に形成された隙間を通じてフローティングシールの周囲に土砂等が侵入するのを抑制し、フローティングシールのシール性を長期に亘って適正に保つ建設機械の走行装置を提供する。【解決手段】 固定側ハウジング13の固定側端面13Eと回転側ハウジング15の回転側端面15Cとの間に形成された隙間22にラビリンス32を設ける。ラビリンス32は、固定側凹窪部13Fと固定側嵌合凸部13Gと回転側嵌合凸部15Dと回転側凹窪部15Eとにより構成する。固定側凹窪部13Fおよび回転側凹窪部15Eには、布状素材により環状に形成された第1,第2の布状部材33,34をそれぞれ設ける。第1の布状部材33と第2の布状部材34との間には、グリースGが充填されたグリース収容空間35を設ける。【選択図】 図4


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    Title :

    TRAVEL DEVICE OF CONSTRUCTION MACHINE


    Additional title:

    建設機械の走行装置


    Contributors:

    Publication date :

    2018-08-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16J Kolben , PISTONS / B62D MOTOR VEHICLES , Motorfahrzeuge / F16C SHAFTS , Wellen



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