In-wheel motor drive unit

In-wheel motor drive unit

  • CN 102,126,426 B
  • Filed: 03/07/2007
  • Issued: 04/13/2016
  • Est. Priority Date: 03/08/2006
  • Status: Active Grant
First Claim
Patent Images

1. an in-wheel motor drive unit, it is housed in the hub of Electric power car, and is fixed on chassis via draft hitch, it is characterized in that, has:

  • Shell;

    Motor part, its rotary actuation has the motor side turning unit of eccentric part;

    Reduction part, the rotation of described motor side turning unit is slowed down and passes to wheel side turning unit by it;

    Wheel hub, it is fixedly connected on described wheel side turning unit;

    AndOutward member, it is fixed on described shell, and remains rotatable by the hub bearing with multiple row rolling body by described wheel hub,Described reduction part has;

    The revolution parts of curve ruler form, it rotatably remains on by antifriction-bearing box on described eccentric part, the revolution motion carried out centered by its pivot center with the rotation of described motor side turning unit, and at peripheral part, there is multiple waveform, and there are the multiple through holes penetrating into the opposing party side end face from a side side end face;

    Peripheral snap parts, it engages with the peripheral part of described revolution parts and produces the spinning motion of the parts that revolve round the sun;

    First needle bearing, it is configured at the both ends of described peripheral snap parts, and is rotatably supported on the housing by described peripheral snap parts;

    Movement conversion mechanism, the spinning motion of the revolution parts of described curve ruler form is converted to the rotary motion centered by the pivot center of described motor side turning unit by it, and passes to the described wheel side turning unit be fixedly connected with described wheel hub;

    AndCounterweight, it is in the outside of described eccentric part, changes 180 °

    of phase places and be configured on described motor side turning unit with described eccentric part,Described movement conversion mechanism comprises;

    be positioned at each through hole of described revolution parts and be fixed in the domestic of described wheel side turning unit;

    And be installed on described domestic and carry out the second needle bearing of Structure deformation with the internal face of described through hole.

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