An axle assembly for a low floor vehicle is described herein. The axle assembly includes an axle housing and a drive unit for driving a wheel assembly. The axle housing including a first gearbox, a second gearbox and a cradle assembly coupling the first gear box to the second gear box. The axle assembly includes first and second hub assemblies that form a first axis of rotation. The first gearbox includes an electric motor that is coupled to a transmission used to rotate an output shaft. The first gearbox also includes a differential mounted for rotation with the transmission and a first drop box mounted for rotation with the differential. The axle assembly also includes a portal axle mounted for rotation with the first drop box and extends from the first gearbox to the second gearbox wherein the portal axle forms a second axis of rotation that is offset from the first axis of rotation of the hub assemblies. The second gearbox includes a second drop box mounted for rotation with the portal axle and is adapted to drive the second hub assembly.

A leading-edge steering system is provided for a front suspension of an off-road vehicle. The leading-edge steering system is comprised of a spindle assembly that supports a drive axle assembly to conduct torque from a transaxle to a front wheel. A first rod-end joint pivotally couples an upper suspension arm and the spindle assembly, and a second rod-end joint pivotally couples a lower suspension arm and the spindle assembly. A steering rod-end joint pivotally couples a first end of a steering rod with a leading-edge portion of the spindle assembly. A steering gear is coupled with a second end of the steering rod and configured to move the steering rod, such that the spindle assembly rotates with respect to the upper and lower suspension arms. The leading-edge portion is configured to exert primarily tensile forces on the steering rod during travel over rough terrain.

A wheel drive apparatus of an automated guide vehicle (AGV) is provided, which includes: a bogie frame; drive frames including a pair of drive wheels installed so that power is transmitted through opposite side surfaces of the bogie frame, and first auxiliary wheels opposite to second auxiliary wheels, with a gap “b” outside of each of the opposite side surfaces of the bogie frame; rotation shaft portions pivotally coupled at shaft points of each of the drive frames and the bogie frame; and connection portions in which first connection arms are respectively formed in the drive frames, and second connection arms are respectively formed in the bogie frame, and the first and second connection arms are vertically connected as a slip rod so as to move up and down at a predetermined gap “a”, and thus which does not cause the drive wheel to float in the air even if any of the auxiliary wheels or any of the drive wheels of the AGV travelling along the floor contacts a depression, a barrier and a slope.

An axle assembly for frame rail vehicles is described herein. The axle assembly also includes a drive unit housing that includes an interior cavity enclosing first and second electric machines, a common gear reduction, a differential gear set, and a speed change mechanism with the first and second axle shafts partially disposed within the interior cavity and extending out of the drive unit housing. The drive unit housing includes a central cavity, a lower cavity, a first machine cavity, and a second machine cavity. The central cavity includes the common gear reduction and the axis of rotation of the first and second axle shafts. The lower cavity accumulates a volume of gearbox fluid with the speed change mechanism at least partially immersed in the lower cavity. The first machine cavity includes the first electric machine and the second machine cavity includes the second electric machine.

A powered axle for a work vehicle with a dual wheel arrangement includes an axle housing, an axle hub mounted to the axle housing, and an output hub having opposite axial ends supported by one or more wheel bearings for rotation about the axle hub along a rotation axis. An electric drive is disposed, at least in part, within the axle housing, and a hub gear set is disposed, at least in part, within the axle hub and configured to transmit power from the electric drive to the output hub for rotation of the dual wheel arrangement. A wheel brake disposed radially between the axle hub and the output hub and axially between the ends of the output hub is configured to selectively permit and arrest rotation of the output hub.

A tone wheel assembly includes a tone wheel. A first member is attached to the tone wheel. A second member is at least partially disposed around a portion of the first member. The second member includes a collar portion, one or more first leg portions extending axially from the collar portion, and one or more second leg portions extending axially from the collar portion. The one or more first leg portions include a first leg portion protuberance that extends radially from an outer surface of the one or more first leg portions. The one or more second leg portions include a second leg portion protuberance that extends radially from an outer surface of the one or more second leg portions.

A braking system for a twin tire axle of a long-haul commercial vehicle is disclosed. The twin tire axle couples to rims for the twin tires and to a drive engine. The braking system includes: a gearbox with at least one part configured to be attached to the rims; a shaft configured to connect the gear box with the drive engine; and a brake unit configured to brake a rotating part of the braking system that is rotatable at a higher rotational speed than the rims. The gearbox and at least part of the brake unit are adapted to be placed inside the rims of the twin tires.

A drive axle assembly of a vehicle is provided. The drive axle assembly includes: a motor; a first shaft and a second shaft; a gearbox; a right shifting fork; a right inner ring-gear support; a right sun gear, a right inner planet gear, and a right outer planet gear; a left shifting fork; a left inner ring-gear support; a left sun gear and a left planet gear, where the left sun gear is configured to rotate coaxially with the right inner ring-gear support, and the left sun gear is configured to rotate synchronously with the second shaft; a driving gear, configured to rotate synchronously with the left planet gear by using a left planet support; and a differential connected with the driving gear.

A drive axle assembly includes a motor; a first shaft and a second shaft. A right planet row mechanism is disposed on the first shaft, and a left planet row mechanism is disposed on the second shaft. A right sun gear of the right planet row mechanism is connected with the first shaft. A left sun gear of the left planet row mechanism is connected with the second shaft. The right sun gear has a right central oil passage and a right radial oil passage. The right central oil passage is in communication with the first shaft. The left sun gear has a left central oil passage and a left radial oil passage. The left central oil passage is in communication with the second shaft. The first shaft is in communication with the second shaft to supply oil to the second shaft.

A drive axle assembly includes a motor; a first shaft and a second shaft. A right planet row mechanism is disposed on the first shaft, and a left planet row mechanism is disposed on the second shaft. A right sun gear of the right planet row mechanism is connected with the first shaft. A left sun gear of the left planet row mechanism is connected with the second shaft. The right sun gear has a right central oil passage and a right radial oil passage. The right central oil passage is in communication with the first shaft. The left sun gear has a left central oil passage and a left radial oil passage. The left central oil passage is in communication with the second shaft. The first shaft is in communication with the second shaft to supply oil to the second shaft.