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.

A mounting system for a portal lift assembly of an off-road vehicle includes a housing having a rear wall, a front wall, and a side wall. The rear wall includes an opening to receive the end of one of the vehicle's axles, and the front wall includes an opening to allow an output shaft to extend outward from the housing. The rear wall also includes an integral mounting brackets effective to mount the box to an upper A-arm to the rear wall, and a lower A-arm to the rear wall.

An apparatus and methods are provided for a braking system for a front portal drivetrain assembly to improve the mechanical strength and performance of vehicle drivetrains. The braking system includes a brake caliper coupled with a drivetrain and a brake disc coupled to a drive axle such that a periphery of the brake disc passes within the brake caliper. A front portal spindle assembly includes a pinion gear assembly and an output gear assembly that provide a gear reduction at a front wheel of the vehicle. Upon activation of the braking system, the brake caliper applies pressure to the brake disc to slow rotation of the drive axle while the gear reduction at the front wheel contributes to engine braking during deceleration of the vehicle. The gear reduction of the front portal spindle assembly facilitates reducing the size of the brake caliper, the brake disc, or a combination thereof.

An active-passive differential series-parallel connection supporting leg, a gravity-based closing series-parallel connection supporting leg, and a six-degree-of-freedom position-adjusting robot platform are provided. The six-degree-of-freedom position-adjusting robot platform is formed of a plurality of legs distributed in parallel, and includes a frame, a distributed controller, and multi-chain parallel legs, wherein a plurality of legs are fixedly connected with the frame through a base. The present disclosure integrates an omnidirectional movement and position adjustment to solve problems that the existing position-adjusting platform is fixed or moved inflexibly, the structure is over complicated, the occupation space is excessive, and the movement error is large, and thereby effectively expanding application range of the six-degree-of-freedom position-adjusting robot platform.

A mounting system for a portal lift assembly of an off-road vehicle includes a housing having a rear wall, a front wall, and a side wall. The rear wall includes an opening to receive the end of one of the vehicle's axles, and the front wall includes an opening to allow an output shaft to extend outward from the housing. The rear wall also includes one or more integral mounting brackets effective to mount the box to the suspension of the vehicle. Such integral mounting brackets may include an upper A-arm connection bracket to connect the upper A-arm directly to the rear wall, and/or a lower A-arm connection bracket to connect the lower A-arm directly to the rear wall. When the wheel is a steerable wheel, the rear wall also may include an integral mounting bracket effective to allow a steering linkage to connect directly to the rear wall.

A wheel suspension device having a single-wheel steering for a motor vehicle with driving of the steered wheels, having a steering knuckle spring-suspended on the vehicle chassis for rotatably supporting a vehicle wheel. The steering knuckle can be pivoted about a pivot axis by means of the single-wheel steering. The single-wheel steering includes a worm gear having a worm wheel, which is rotationally fixed to the steering knuckle and arranged coaxially with the pivot axis, and which meshes with a worm, by means of which the worm wheel can be rotated about the pivot axis and which can be driven by a steering motor arranged on the vehicle chassis by way of a steering drive shaft in the form of an articulated shaft.

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.

A driven wheel assembly to provide a zero turn radius without wheel scrubbing. The assembly includes a vertical axis motor driving a vertical drive shaft to drive first and second spaced-apart wheels that are oriented horizontally or perpendicular to the vertical drive shaft for lateral motion of the vehicle. This is combined with an off-axis vertical motor and gear, which rotates or steers, the driven wheel assembly. Instead of a right angle gear drive as found in a conventional drive unit, the driven wheel assembly employs a center differential coupled to the output end of the vertical drive shaft and a hub of each of the first and second wheels and that is positioned in the space between the two wheels. The center differential drives the first and second wheels, and each of the first and second wheels can turn at a different rotational velocity or even in opposite directions.

A drive device for a handling trolley, including: a chassis; a wheel carrier; a drive wheel; a steering motor for rotating the wheel carrier relative to the chassis; a reduction gear connecting the steering motor to the wheel carrier, the reduction gear including a planetary gear set including an internal sun gear, at least one planet gear, and a planet carrier on which the planet gear is mounted, a ring gear surrounding the internal sun gear and the planet gear. The shaft of the steering motor is fixed relative to the internal sun gear, the wheel carrier is fixed relative to either the planet carrier or the ring gear, and the chassis is fixed relative to the other one of the two components.