A vehicle drive unit and land vehicle comprising the drive unit are disclosed. Each drive unit comprises a pair of longitudinally spaced apart rotatable drive structures. The land vehicle comprises a pair of drive units on opposite sides thereof. The drive units comprise an electric motor for powering the rotatable drive structures and a gear drive assembly comprising structure for disengaging the electric motor. The drive units may be remotely controllable, may be water-tight and may be floatable. The vehicle comprising the drive unit may be amphibious.

A construction vehicle has a slewing ring on which a superstructure is rotatably mounted, and an undercarriage supporting the slewing ring. The undercarriage includes an upper chassis, having an upper propulsion device, that is rigidly connected to the slewing ring, and a lower chassis having a lower propulsion device that is mounted in a pivotable manner with respect to the upper chassis. Furthermore, a pivoting apparatus is provided in order to pivot the lower chassis relative to the upper chassis.

A construction vehicle has a slewing ring on which a superstructure is rotatably mounted, and an undercarriage supporting the slewing ring. The undercarriage includes an upper chassis, having an upper propulsion device, that is rigidly connected to the slewing ring, and a lower chassis having a lower propulsion device that is mounted in a pivotable manner with respect to the upper chassis. Furthermore, a pivoting apparatus is provided in order to pivot the lower chassis relative to the upper chassis.

A UTV portal axle system is disclosed, including a spindle with a housing for housing input and output drive gears coupled by one or more idler gears. The output drive gear is disposed lower than the input drive gear to provide additional ground clearance to the UTV. The king pin axis angle is substantially the same as that of a stock UTV, while maintaining a scrub radius of substantially one inch or less. This is accomplished by the lower control arm ball joint being located within a recess of the output drive gear. This allows the UTV to be properly controlled when driven at high speeds over rough or uneven terrain. The gears may be interchangeable to allow the gear ratio to be adjusted to be more suitable for use at various driving speeds. A method of changing the gear ratio is also disclosed.

A UTV portal axle system is disclosed, including a spindle with a housing for housing input and output drive gears coupled by one or more idler gears. The output drive gear is disposed lower than the input drive gear to provide additional ground clearance to the UTV. The king pin axis angle is substantially the same as that of a stock UTV, while maintaining a scrub radius of substantially one inch or less. This is accomplished by the lower control arm ball joint being located within a recess of the output drive gear. This allows the UTV to be properly controlled when driven at high speeds over rough or uneven terrain. The gears may be interchangeable to allow the gear ratio to be adjusted to be more suitable for use at various driving speeds. A method of changing the gear ratio is also disclosed.

An automated guided vehicle is provided and includes a frame in which a driving wheel is accommodated and an actuator that is connected to lift and lower a first portion of the frame centered around a hinge part formed at a second portion of the frame. Only one side of the frame is lifted to lift the driving wheel from the floor, thus reducing capacity and power consumption of the driving motor, and a region for space utilization is increased by reducing a size by applying the driving motor.

An automated guided vehicle is provided and includes a frame in which a driving wheel is accommodated and an actuator that is connected to lift and lower a first portion of the frame centered around a hinge part formed at a second portion of the frame. Only one side of the frame is lifted to lift the driving wheel from the floor, thus reducing capacity and power consumption of the driving motor, and a region for space utilization is increased by reducing a size by applying the driving motor.

A vehicle drive unit and land vehicle comprising the drive unit are disclosed. Each drive unit comprises a pair of longitudinally aligned and longitudinally spaced apart ground wheels. The land vehicle comprises a pair of drive units on opposite sides thereof. The drive units comprise an electric motor for powering the pair of wheels and a gear drive assembly comprising structure for disengaging the electric motor from the ground wheels. The drive units may be remotely controllable, may be water-tight and may be floatable. The vehicle comprising the drive unit may be amphibious.

A vehicle drive unit and land vehicle comprising the drive unit are disclosed. Each drive unit comprises a pair of longitudinally aligned and longitudinally spaced apart ground wheels. The land vehicle comprises a pair of drive units on opposite sides thereof. The drive units comprise an electric motor for powering the pair of wheels and a gear drive assembly comprising structure for disengaging the electric motor from the ground wheels. The drive units may be remotely controllable, may be water-tight and may be floatable. The vehicle comprising the drive unit may be amphibious.

An automated guided vehicle is provided and includes a frame in which a driving wheel is accommodated and an actuator that is connected to lift and lower a first portion of the frame centered around a hinge part formed at a second portion of the frame. Only one side of the frame is lifted to lift the driving wheel from the floor, thus reducing capacity and power consumption of the driving motor, and a region for space utilization is increased by reducing a size by applying the driving motor.