To perform loosening prevention for a nut member to a male screw part of a stationery side housing.SOLUTION: A travel device 11 comprises: a stationery side housing 12; a hydraulic motor 14; a rotary side housing 17; bearings 19, 20 which are provided between the stationery side housing 12 and the rotary side housing 17; planetary gear reduction mechanisms 22, 28 which decelerate rotation of the hydraulic motor 14; a nut member 35 which is engaged with a male screw part 12E of the stationery side housing 12, and position the bearings 19, 20; and a loosening prevention mechanism 36 which suppresses loosening of the nut member 35. The loosening prevention mechanism 36 comprises a concave groove 37 which is formed at an inner peripheral edge of the nut member 35, a female screw hole 38 which is formed in an end face 12G on the other side in an axial direction of the stationery side housing 12 at a position corresponding to the concave groove 37 of the nut member 35, and a fixing bolt 39. In the state that the fixing bolt 39 is screwed into the female screw hole 38, a head 39B of the fixing bolt 39 is engaged with the concave groove 37 of the nut member 35.SELECTED DRAWING: Figure 3

    【課題】固定側ハウジングの雄ねじ部に対するナット部材の緩止めを行う。【解決手段】走行装置11は、固定側ハウジング12と、油圧モータ14と、回転側ハウジング17と、固定側ハウジング12と回転側ハウジング17との間に設けられた軸受19,20と、油圧モータ14の回転を減速する遊星歯車減速機構22,28と、固定側ハウジング12の雄ねじ部12Eに螺合し軸受19,20を位置決めするナット部材35と、ナット部材35の緩みを抑制する緩止め機構36とを備える。緩止め機構36は、ナット部材35の内周縁に形成された凹溝37と、ナット部材35の凹溝37に対応する位置で固定側ハウジング12の軸方向の他側の端面12Gに形成された雌ねじ穴38と、固定ボルト39とを備え、固定ボルト39が雌ねじ穴38に螺着された状態で固定ボルト39の頭部39Bがナット部材35の凹溝37に係合する。【選択図】図3


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    Title :

    TRACKED VEHICLE TRAVEL DEVICE


    Additional title:

    装軌式車両の走行装置


    Contributors:

    Publication date :

    2019-10-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / E02F Baggern , DREDGING / F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile / F16C SHAFTS , Wellen / F16H Getriebe , GEARING



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