PROBLEM TO BE SOLVED: To provide a reliable trank roller of a caterpillar track type travel vehicle, capable of coping with high speed travel, and suppressing increase in cost and in heating amount due to a floating seal by suppressing increase in size of the floating seal.SOLUTION: A trank roller constitutes a part of a caterpillar track type travel vehicle. It includes a roller 2, a shaft 1, seal means 31, 32 installed at both ends and retainers 3, 4, with a structure constituted of a pair of conical roller bearings 11,12 in which bearing means arranged on left and right sides are capped over the shaft 1. A threaded part 6 is provided at a part of inner diameter of at least one retainer 4 among the retainers. Means for transmitting a clamping torque for providing a pressure to the conical roller bearings 11, 12 to one retainer 4 is set near the outside of a threaded part outer diameter 7. By making the threaded part outer diameter 7 to be a diameter which is a minimum requirement for a screw intensity of the threaded part 6 increase in size of the floating seal 32 is suppressed.SELECTED DRAWING: Figure 1

    【課題】高速走行に対応することができ、フローティングシールの大型化を抑えることで、フローティングシールに依る発熱量の増加やコストの増加を抑えると共に、信頼性に優れた履帯式走行車両の転輪を提供する。【解決手段】履帯式走行車両の一部を構成する転輪であって、ローラ2と、シャフト1と、両端に設置されたシール手段31,32と、リテーナ3,4を備え、左右に配置された軸受手段がシャフト1に外嵌される一対の円すいころ軸受11,12により構成される構造において、上記リテーナの少なくも一方のリテーナ4の内径の一部にネジ部6を設けると共に、上記円すいころ軸受11,12に与圧を与えるための締め付けトルクが上記一方のリテーナ4に伝達される手段をネジ部外径7近傍外に設定し、ネジ部外径7をネジ部6のネジ強度に必要最小限な径とすることにより、フローティングシール32の大型化を抑える。【選択図】図1


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    Title :

    TRANK ROLLER OF CATERPILLAR TRACK TYPE TRAVEL VEHICLE


    Additional title:

    履帯式走行車両の転輪


    Contributors:
    OSUGA TADAO (author) / KOMAI MORIO (author)

    Publication date :

    2016-07-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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