Truck axle with direct drive electric motors
AssigneeTraction Innovation B.V.
InventorPieter Theodoor Van Lookeren Campagne
Life of this patent
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Abstract
The invention is directed to a truck axle comprising two hub carriers connected by an axle bridge structure. Each hub carrier comprises a stator of a direct drive electric motor and carries a rotary assembly comprising a rim flange to support a rim for a single tyre. The hub carrier comprises a first part which is laterally positioned within the rim and a second part which is laterally positioned next to the rim. The rotary assembly is comprised of a wheel hub shaft which is laterally positioned within the rim and tyre combination and a second part which is laterally positioned next to the rim and tyre combination. The second part of the hub carrier comprises the stator and the second part of the rotary assembly comprises a rotor of the electric motor.
Claims33
A truck axle comprising two hub carriers having a bearing centre axis, which bearing centre axes are positioned on a common axis and wherein the two hub carriers are connected by an axle bridge structure,
- wherein each hub carrier comprises a stator of a direct drive electric motor and carries a rotary assembly comprising a rim flange to support a rim for a single tyre,
- wherein the hub carrier comprises of a first part which is laterally positioned within the rim and tyre combination when mounted and a second part which is laterally positioned next to the rim and tyre combination when mounted;
- wherein the second part of one hub carrier is connected to the second part of the other hub carrier by the axle bridge structure;
- wherein the rotary assembly is comprised of a wheel hub shaft and a second part which is laterally positioned next to the rim and tyre combination when mounted;
- wherein the second part of the hub carrier comprises the stator of the electric motor and the second part of the rotary assembly comprises a rotor of the electric motor.
A hub carrier comprising a stator of a direct drive electric motor and carries a rotary assembly comprising a hub,
- wherein the hub comprises a rim flange to support a rim for a single tyre,
- wherein the hub carrier comprises of a first part which is laterally positioned within the rim and tyre combination when mounted and a second part which is laterally positioned next to the rim and tyre combination when mounted;
- wherein the rotary assembly is comprised of a wheel hub shaft which is laterally positioned within the rim and tyre combination when mounted and a second part which is laterally positioned next to the rim and tyre combination when mounted;
- and
- wherein the second part of the hub carrier comprises the stator of the electric motor and the second part of the rotary assembly comprises a rotor of the electric motor,
- wherein the first part of the hub carrier is a spindle having an axial channel, the wheel hub shaft is a half shaft having an inner part provided with outer splines and a radially extending outer flange as an outer end,
- wherein the hub is rotatably supported by a radially outer part of the spindle, and
- wherein the inner part of the half shaft is present in the axial channel and connects to the second part of the rotary assembly by a spline connection and wherein the outer flange of the half shaft is mounted to the hub such that the rotation of the second part of the rotary assembly is transmitted to the hub by the half shaft.
Dependencies are inferred from the claim text.