A driven caster wheel assembly may include a wheel, an axle, a drive assembly, a drive shaft, and a bevel gear. The wheel may be mounted to the axle for rotation about a drive axis and steering about a substantially vertical steering axis. The drive shaft may extend along the steering axis from a first end to a second end, with the first end being connected to the axle and the second end being connected to the drive assembly such that the drive assembly controls rotation of the drive shaft about the steering axis. The bevel gear may connect the first end to the axle such that rotation of the drive shaft about the steering axis controls rotation of the wheel about the drive axis to drive the driven caster wheel assembly in a substantially horizontal direction. Various other assemblies and methods are also disclosed.

A portal gear and a method to implement a portal gear for a model vehicle are provided. The portal gear may include a drive shaft attached to an input gear and an axle attached to an output gear. The portal gear may further include a housing to vertically contain the input gear and the output gear. Wherein the drive shaft transfers a rotational torque from an upper location to a lower location via a gear reduction resulting from the input gear rotating the output gear.

This invention relates to a drive module. The drive module includes a base and a steering assembly rotatably mounted to the base. The steering assembly is selectively rotatable about a predetermined steering axis and carries a drive train. The drive train is configured to provide a multi-stage drive reduction of the drive train and the drive train is adapted to support a wheel such that a centre of a contact patch of the wheel is laterally offset from the steering axis.

An omni-directional rotational drive mechanism and a moving body in which production and maintenance can be facilitated, while the size can be reduced, by making the number of components smaller. A rotating body provided for a wheel member rotatable about a ring-shaped shaft having a rotating shaft of the wheel member as its center. The rotating body is configured to rotate integrally with the wheel member about the rotating shaft. A pair of worms rotatable about the same shaft as the rotating shaft of the wheel member. A pair of worm wheels are provided for the wheel member so as to be rotatable by meshing with different worms, and capable of transmitting each of rotations to the rotating body. The rotating body is configured so as to rotate or stop with respect to the wheel member in accordance with the rotational direction and the rotational speed of the respective worms.

A driven caster wheel assembly may include a wheel, an axle, a drive assembly, a drive shaft, and a bevel gear. The wheel may be mounted to the axle for rotation about a drive axis and steering about a substantially vertical steering axis. The drive shaft may extend along the steering axis from a first end to a second end, with the first end being connected to the axle and the second end being connected to the drive assembly such that the drive assembly controls rotation of the drive shaft about the steering axis. The bevel gear may connect the first end to the axle such that rotation of the drive shaft about the steering axis controls rotation of the wheel about the drive axis to drive the driven caster wheel assembly in a substantially horizontal direction. Various other assemblies and methods are also disclosed.

A drive device for a motor vehicle, having a first drive assembly, a second drive assembly, and a wheel axle having a first axle member and a second axle member. The axle members are arranged in the lengthwise direction relative to an axis of rotation of the first axle member and/or the second axle member, at least partially, on sides of the first drive assembly and the second drive assembly lying opposite to one another, and wherein the first axle member is coupled to the first drive assembly and the second axle member is coupled to the second drive assembly in order to transmit torque.

A rear portal trailing arm assembly for a vehicle rear suspension that includes a CV joint hub for coupling with a transaxle and a wheel hub for coupling with a rear wheel. A gear transfer case extends rearward from the CV joint hub to an axle case and functions similarly to a rear trailing arm. Forward mounts facilitate coupling the gear transfer case to the chassis such that the trailing arm assembly pivots vertically with respect to the chassis. A rearward mount facilitates coupling a strut with the gear transfer case to control the vertical motion of the rear wheel. Multiple gear assemblies are meshed within the gear transfer case. An axle is coupled with the meshed gear assemblies and housed within the axle case, such that torque applied to the CV joint hub is communicated to the wheel hub.

The present disclosure discloses an electric drive axle assembly and a vehicle having the electric drive axle assembly. The electric drive axle assembly includes: an electric power assembly and an axle case assembly. The electric power assembly includes a power motor, a transmission, and a differential; the transmission has a transmission housing, the power motor being fixed to the transmission housing; the differential is supported on the transmission housing. The axle case assembly includes an axle case component and two half axles, the two half axles and the differential are both located inside the axle case component, and the transmission housing is fixed to the axle case component. For the electric drive axle assembly according to the embodiment of the present disclosure, the electric power assembly and the axle case assembly are integrated, which shortens a transmission chain, improves transmission efficiency, creates a compact structure and saves space.

A drive device for a motor vehicle, having a first drive assembly, a second drive assembly, and a wheel axle having a first axle member and a second axle member. The axle members are arranged in the lengthwise direction relative to an axis of rotation of the first axle member and/or the second axle member, at least partially, on sides of the first drive assembly and the second drive assembly lying opposite to one another, and wherein the first axle member is coupled to the first drive assembly and the second axle member is coupled to the second drive assembly in order to transmit torque.