A lift-enabled motorized wheel assembly and material handling cart. A drive wheel is supported on an axel between a fixed leg and a floating leg. The axel passes through the fixed leg without interference, but is captured in the floating leg by a self-aligning bearing. The axle is driven by a drive motor that is bolted to the fixed leg through a right-angle gearbox. A vertical suspension unit provides compliance for drive wheel traction. A lifter sub-assembly alternately raises and lowers the drive wheel into and out of contact with the ground. The lift-enabled motorized wheel assembly is attached to the bottom of a cart frame, along with a plurality of caster wheels. The cart includes a tow-bar that is moveable between raised and lowered positions. When the tow-bar is lowered condition for towing, the drive wheel automatically lifts out of contact with the ground.

A vehicle has steering and drive wheels supported by legs articulated to the structure of the vehicle. Each leg is rotatably mounted on a main support around a transverse axis. The main support is rotatably mounted about the transverse axis on a base structure, which is connected to the structure of the vehicle. An actuator device is operatively interposed between the main support and the base support to adjust the position of the main support around the transverse axis, and consequently the height of the vehicle from the ground. A hub-bearing support carrying the wheel hub is rotatably mounted around a wheel steering axis on an auxiliary camber adjustment support. The latter is carried around a camber adjustment axis on a further auxiliary caster adjustment support. The latter is carried by the leg around a caster adjustment axis. The steering of the wheel and the camber adjustment are controlled by respective actuator devices. The caster adjustment is automatically controlled as the position of the leg changes around the transverse axis.

A mobile robot triangle chassis assembly is disclosed, which includes a housing, a top plate, an isolation plat, a bottom plate, a power package, multiple support beams and three sets of gear trains. The three sets of gear trains are equilaterally triangularly distributed, each of which includes a motor, a speed reducer, a support frame and an omnidirectional wheel. The speed reducer is a bevel gear speed reducer whose outer periphery is bent at an angle of 90 degrees. The three sets of gear trains in a triangle distribution enhances the stability of the robot walking; the speed reducer is a bevel gear speed reducer whose outer periphery is bent at the angle of 90 degrees; the mobile robot triangle chassis assembly has a double-layer structure, the three sets of gear trains are located at a lower layer of the double-layer structure, and the power package is located at an upper layer of the double-layer structure, so as to reduce an occupied area of the mobile robot triangle chassis assembly. In the mobile robot triangle chassis assembly of the present invention, only the bottom of the omnidirectional wheel is located outside the bottom plate, so that components within the mobile robot triangle chassis assembly are protected. Furthermore, the power package is located on the isolation plate higher than the three sets of gear trains to be more sufficiently protected.

A motor vehicle comprising: a body defining a front and a rear, with reference to a normal forward driving direction of the motor vehicle; a first axle carried by the front and comprising, in turn, a first and a second front wheel, which can rotate around a first and a second axis, respectively; a second axle carried by the rear and comprising, in turn, a third and a fourth rear wheel, which can rotate around a third and a fourth axis, respectively; a first electric motor carried by the second axle; and a fifth longitudinal axis parallel to the normal forward driving direction; the first electric motor comprises, in turn, a first output shaft capable of rotating around a sixth axis orthogonal to the third and fourth axis and extends from the side of the rear relative to the third and fourth axis, moving parallel to the fifth axis.

An electric axle for a motor vehicle, comprising: a first wheel, which can rotate around a first axis; a second wheel, which can rotate around a second axis; and an electric motor, which is operatively connected to said first and second wheel; the electric motor comprises, in turn, an output shaft, which can rotate around a third axis orthogonal to said first and second axis.

A final drive for a motor vehicle. A drive assembly having a drive shaft, the drive shaft is coupled via a gear stage to an output shaft of the final drive. The drive shaft is coupled to the gear stage via an intermediate shaft that is arranged offset with respect to it. The intermediate shaft is present on a first side of a conceptual plane that incorporates an axis of rotation of the drive shaft, and a power electronics unit is electrically connected to the drive assembly via connection terminals arranged at its front end on a second side of the plane, which lies opposite to the first side.

A drive axle system that includes first and second wheel end assemblies, a support structure, and an electric motor. A support structure supports the first and second wheel end assemblies and the electric motor. The electric motor has a rotor that is rotatable about a rotor axis. The rotor axis is disposed below a wheel axis.

A forklift includes a downstream exhaust pipe that releases engine exhaust gas into the atmosphere. The downstream exhaust pipe includes a tail pipe extending in a width direction of a vehicle body. A closure part that closes a tail pipe's opening is provided at the tail pipe's tip end portion. A first exhaust port which discharges the exhaust gas rearward from the vehicle body and a second exhaust port which discharges the exhaust gas rearward from the vehicle body at the tail pipe's tip end side with respect to the first exhaust port are provided in the tail pipe's circumferential surface portion. The first exhaust port and the second exhaust port are disposed in a region where cooling air flows. A throttling part that changes a flow path area for the exhaust gas is disposed between the first exhaust port and the second exhaust port in the tail pipe.

A suspension system (20) is described for vehicle with a frame, comprising an element (R, 12) propulsive by rolling on the ground; two units (12a, 12b) adapted to impart a torque to the propulsive element that are controllable independently of one another, where the two units are movable relative to the propulsive element independently from one another and rigidly connectable to the frame at one same point (P). By moving one or each unit relative to the propulsive element the distance between the latter and said point is made to vary.

An electric wheelchair with quick-release drive wheels includes: a chassis, and two guide wheels and two said drive wheels. The drive wheels are rotated by a drive mechanism and connected to the drive mechanism by a quick-release mechanism. To detach the drive wheel, the user can press the cover to make the rolling balls move out of the receiving groove and back to the arc-shaped engaging portion, which allows the hollow shaft to disengage from the drive shaft. Then, keeping pressing the cover can detach the drive wheel from the drive mechanism. To assemble the drive wheel, the user can press the hollow shaft into the axial hole to make the rolling balls engage in the receiving groove, so that the drive wheel is assembled to the drive mechanism. The assembly and disassembly of the drive wheel require no wrenches or other tools, and therefore are very convenient.