A ground milling machine, in particular a road milling machine or stabilizer or recycler, having a machine frame and at least one front travel unit as viewed in a longitudinal machine direction and at least one rear travel unit as viewed in the longitudinal machine direction, each travel unit comprising a respective travel wheel, which is in contact with an underlying ground during travel operation of the ground milling machine and has a wheel tread configured for direct ground contact, or a crawler track, which is in contact with an underlying ground during travel operation of the ground milling machine, and a drive wheel configured for driving the crawler track, at least one travel unit being height-adjustable along a lifting axis via a lifting device and/or being rotatable about a steering axis for steering the ground milling machine, and the at least one travel unit being arranged on the machine frame via a mounting device, said mounting device being configured such that the travel unit can be moved at least partially transversely to the lifting axis and/or steering axis through a translational movement.

A ground milling machine, in particular a road milling machine or stabilizer or recycler, having a machine frame and at least one front travel unit as viewed in a longitudinal machine direction and at least one rear travel unit as viewed in the longitudinal machine direction, each travel unit comprising a respective travel wheel, which is in contact with an underlying ground during travel operation of the ground milling machine and has a wheel tread configured for direct ground contact, or a crawler track, which is in contact with an underlying ground during travel operation of the ground milling machine, and a drive wheel configured for driving the crawler track, at least one travel unit being height-adjustable along a lifting axis via a lifting device and/or being rotatable about a steering axis for steering the ground milling machine, and the at least one travel unit being arranged on the machine frame via a mounting device, said mounting device being configured such that the travel unit can be moved at least partially transversely to the lifting axis and/or steering axis through a translational movement.

A mobile well service unit has a structural frame with a front end and a rear end, and defining an axis between the front end and the rear end; a platform mounted at the front end or the rear end of the structural frame and configured to move up and down relative to the structural frame; and ground engaging members mounted to the structural frame and configured to permit the mobile well service unit to move laterally, relative to the axis, across a ground surface. A method of use involves translating the unit laterally.

A mobile well service unit has a structural frame with a front end and a rear end, and defining an axis between the front end and the rear end; a platform mounted at the front end or the rear end of the structural frame and configured to move up and down relative to the structural frame; and ground engaging members mounted to the structural frame and configured to permit the mobile well service unit to move laterally, relative to the axis, across a ground surface. A method of use involves translating the unit laterally.

A ground vehicle may include a platform and a swing arm that may be rotatably coupled to the platform. The swing arm may be configured to move from a first position to a second position by rotating the swing arm about a pivot point on the side of the platform. The pivot point may correspond to where a proximal end of the swing arm couples to the side of the platform. The swing arm may also be configured to move from either the first position or the second position to a third position by actuating the swing arm from the pivot point such that a distal end of the swing arm moves away from the platform to broaden a wheelbase of the ground vehicle. The ground vehicle may also include a centerless wheel assembly coupled to the swing arm.

A ground vehicle may include a platform and a swing arm that may be rotatably coupled to the platform. The swing arm may be configured to move from a first position to a second position by rotating the swing arm about a pivot point on the side of the platform. The pivot point may correspond to where a proximal end of the swing arm couples to the side of the platform. The swing arm may also be configured to move from either the first position or the second position to a third position by actuating the swing arm from the pivot point such that a distal end of the swing arm moves away from the platform to broaden a wheelbase of the ground vehicle. The ground vehicle may also include a centerless wheel assembly coupled to the swing arm.

A work vehicle includes left and right track assemblies, each track assembly having a main frame, a pivot member, a pivot shaft coupled to the pivot member, and an electrical actuator coupled between the pivot shaft and the main frame. The work vehicle also includes a control system having a controller communicatively coupled to each electrical actuator of the track assemblies. The controller includes processors that control the electrical actuator to steer the work vehicle about a generally vertical steering axis. Each pivot member is mounted to the main frame of the track assemblies. Each track assembly is pivotal about a generally horizontal pitch axis of the pivot shaft to permit pitch movement of the track assembly. Each track assembly is pivotal about a generally horizontal camber axis through a portion of the pivot member to permit camber movement of the track assembly.

A work vehicle includes left and right track assemblies, each track assembly having a main frame, a pivot member, a pivot shaft coupled to the pivot member, and an electrical actuator coupled between the pivot shaft and the main frame. The work vehicle also includes a control system having a controller communicatively coupled to each electrical actuator of the track assemblies. The controller includes processors that control the electrical actuator to steer the work vehicle about a generally vertical steering axis. Each pivot member is mounted to the main frame of the track assemblies. Each track assembly is pivotal about a generally horizontal pitch axis of the pivot shaft to permit pitch movement of the track assembly. Each track assembly is pivotal about a generally horizontal camber axis through a portion of the pivot member to permit camber movement of the track assembly.

A vehicle urging system for inhibiting a vehicle from becoming high centered includes a vehicle that has a plurality of wheels and a bottom side. A track unit is coupled to the bottom side of the vehicle. The track unit engages an object that would otherwise high center the vehicle, such as a rock or the like. The track unit selectively rotates in a first direction to urge the vehicle along the object until the vehicle is clear of the object.

A vehicle urging system for inhibiting a vehicle from becoming high centered includes a vehicle that has a plurality of wheels and a bottom side. A track unit is coupled to the bottom side of the vehicle. The track unit engages an object that would otherwise high center the vehicle, such as a rock or the like. The track unit selectively rotates in a first direction to urge the vehicle along the object until the vehicle is clear of the object.