PROBLEM TO BE SOLVED: To solve the problem that a reduction gear part cannot be miniaturized because of need to increase the shaft diameter of an output shaft, and to increase the size of a bearing that supports the output shaft to secure the shaft strength of the output shaft or a bearing life since an excessive radial load applied on a wheel acts directly on the output shaft of a gear motor, and to prolong the life of the bearing that supports the output shaft.SOLUTION: A wheel gear motor includes a motor part 10 as the driving source; a gear case 21, having a built-in deceleration mechanism connected with the motor part and an integrally formed hollow cylindrical wheel holding part 21a that makes an output shaft 22 of the deceleration mechanism pass through; a wheel 31 mounted on the outer peripheral surface of the wheel holding part via a bearing; and a rotation transmission member (wheel flange 42) that transmits the rotation of the output shaft to the wheel.SELECTED DRAWING: Figure 1

    【課題】車輪に加わる過大なラジアル荷重が直接ギヤモータの出力軸に作用するので、出力軸の軸強度や軸受の寿命を確保するために、出力軸軸径を上げ、かつ出力軸を支持する軸受サイズを大きくする必要があり、減速機部分を小型化できない課題があった。また、出力軸を支持する軸受の長寿命化が課題であった。【解決手段】駆動源としてのモータ部分10と、前記モータ部分に連結された減速機構が内蔵され、かつ前記減速機構の出力軸22を挿通させる中空円筒状の車輪保持部21aが一体的に形成されたギヤケース21と、前記車輪保持部の外周面に軸受を介して装着された車輪31と、前記出力軸の回転を前記車輪に伝達する回転伝達部材(車輪フランジ42)と、を備えたことを特徴とするものである。【選択図】図1


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    Title :

    WHEELED GEAR MOTOR


    Additional title:

    車輪付ギヤモータ


    Contributors:

    Publication date :

    2016-04-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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