To provide a vehicular power transmission device capable of suppressing the occurrence of noise by reducing the inclination of a rotor shaft due to radial force transmitted from a gear shaft via an elastic member.SOLUTION: A vehicular power transmission device 14 includes a gear shaft 42 having both ends supported by a pair of first bearings 104 and 106 rotatably around a rotation center line C for receiving radial force working in the direction perpendicular to the rotation center line C, a rotor shaft 40 having both ends supported by a pair of second bearings 100 and 102 rotatably around the rotation center line C similarly to the gear shaft 42, spline-fitted to the gear shaft 42, and connected to a rotor 34 of an electric motor 30, and a friction damper 50 (an elastic member) pressed between an inner peripheral face 42i and an outer peripheral face 40o opposed to each other in the radial direction centering on the rotation center line C of the gear shaft 42 and the rotor shaft 40. In the direction of the rotation center line C, the friction damper 50 is disposed between the pair of first bearings 104 and 106.SELECTED DRAWING: Figure 1

    【課題】歯車軸から弾性部材を介して伝達されるラジアル力によるロータ軸の傾きを低減することでノイズの発生を抑制できる車両用動力伝達装置を提供する。【解決手段】車両用動力伝達装置14は、回転中心線Cで回転可能に両端部が一対の第1軸受104,106により支持され且つ回転中心線Cに垂直な方向に働くラジアル力を受ける歯車軸42と、歯車軸42と同じ回転中心線Cで回転可能に両端部が一対の第2軸受100,102により支持され且つ歯車軸42にスプライン嵌合されて電動機30のロータ34に連結されたロータ軸40と、歯車軸42及びロータ軸40の回転中心線Cを中心とする径方向において対向する内周面42iと外周面40oとの間に圧入されたフリクションダンパ50(弾性部材)と、を備える。回転中心線C方向において、フリクションダンパ50は一対の第1軸受104,106の間に配置されている。【選択図】図1


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    Title :

    VEHICULAR POWER TRANSMISSION DEVICE


    Additional title:

    車両用動力伝達装置


    Contributors:

    Publication date :

    2020-10-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / F16H Getriebe , GEARING



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