A steering drive includes an electric motor with a motor shaft and a steering lever rotatable about a pivot axis. A first planetary stage has a first sun gear, first planet gears, a first ring gear, and a first planet carrier. A final planetary stage has a final sun gear, final planet gears, a final ring gear, and a final planet carrier. A force flow runs from the motor shaft to the first sun gear, and from the first sun gear via the first planet gears to the first planet carrier and to the first ring gear. The force flow runs via the final sun gear and via the final planet gears to the final ring gear, runs from the first ring gear and from the final ring gear to the steering lever, and runs via a first sun gear shaft from the electric motor to the first sun gear.

A road milling machine includes a machine frame, front wheels or tracks, rear wheels or tracks, and a milling drum supported from the machine frame between the rear wheels or tracks. The front wheels or tracks are mounted on pivoting columns. Steering levers are attached to the pivoting columns. A steering tie rod includes a connecting part and a projecting arm. The connecting part is connected to the steering levers. A steering cylinder is connected to a free end of the projecting arm.

A vehicle frame structure has a front side member that extends forward from a dashwall. An engine cradle is attached to the front side member with a lateral side portion of the engine cradle being located beneath and spaced apart from a lower surface of the front side member. An engine is installed to the engine cradle with a portion of the engine extending upward from the engine cradle adjacent to the inboard surface of the front side member. An inboard push structure has an inboard surface, an upper portion and a lower portion. The upper portion is attached to an inboard surface of the front side member. The lower portion extends downward below a lower surface of the front side member. The inboard surface faces the engine proximate the lateral portion of the lateral side portion of the engine cradle.

The invention relates to an articulated vehicle comprising a front and a rear vehicle unit, and at least one further vehicle unit connected to said rear vehicle unit, comprising a front vertical steering link arranged substantially centrally of the front vehicle unit, where said front vertical steering link is configured for pivotal attachment to a fixed load-carrying frame connecting said front and rear vehicle units, where said at least one further vehicle unit is configured for attachment to a further fixed load-carrying frame, where said further fixed load-carrying frame is releasably connectable to said fixed load-carrying frame for said connection, such that a train of vehicle units is formed connected to a load-carrying frame unit comprising said fixed load-carrying frame and said further fixed load-carrying frame.

A mobile transport system includes a drive unit having a first drive wheel rotatable about a first drive axis and a second drive wheel rotatable about a second drive axis, the drive axes extending in a transverse direction. The drive unit includes a swivel and a drive frame. The drive frame is pivotable about a steering axis relative to the swivel. The drive unit includes a marking carrier that is disposed in a stationary manner relative to the drive frame, and on which optically detectable markings are applied. The drive unit includes a camera for detecting the markings and is disposed in a stationary manner relative to the swivel.

The invention relates to a load-carrying vehicle part with a first and a second wheel pair (10, 11), which are suspended in a respective bogie element (20) on each side of a frame member (14), a suspension (15) between each bogie element (20) and the frame member (14) on each side of the vehicle part to manipulate the frame member relative to the respective wheel pairs (10, 11), or support the frame member in a springing manner, each suspension (15) comprises a first and a second rocker arm (26A, 26B), wherein the first rocker arm is located in front of the second rocker arm viewed in the normal forward direction of driving of the vehicle part, that each rocker arm (26A, 26B) with its one end is pivotably in a joint (27, 27) in the frame member (14) and with its other end is pivotably in a joint (28, 28) in the bogie element (20) a first spring leg (25A) and a second spring leg (25B), wherein each spring leg with its one end (30) is articulately fastened to the frame member (14) and with its other end (31) is articulately fastened in a rocker arm (26A, 26B), a motion conversion arrangement (29) capable of converting a rotary motion in a joint (27, 28) for one of the rocker arms (26A, 26B) to a forward and backward translation motion.

The invention relates to a load-carrying vehicle part with a first and a second wheel pair (10, 11), which are suspended in a respective bogie element (20) on each side of a frame member (14), a suspension (15) between each bogie element (20) and the frame member (14) on each side of the vehicle part to manipulate the frame member relative to the respective wheel pairs (10, 11), or support the frame member in a springing manner, each suspension (15) comprises a first and a second rocker arm (26A, 26B), wherein the first rocker arm is located in front of the second rocker arm viewed in the normal forward direction of driving of the vehicle part, that each rocker arm (26A, 26B) with its one end is pivotably in a joint (27, 27) in the frame member (14) and with its other end is pivotably in a joint (28, 28) in the bogie element (20) a first spring leg (25A) and a second spring leg (25B), wherein each spring leg with its one end (30) is articulately fastened to the frame member (14) and with its other end (31) is articulately fastened in a rocker arm (26A, 26B), a motion conversion arrangement (29) capable of converting a rotary motion in a joint (27, 28) for one of the rocker arms (26A, 26B) to a forward and backward translation motion.

The present disclosure relates to a system and a method of controlling the movement of a tracked mobile mining machine having one or more articulated vehicle units. The control system works by taking input from manual or automated input means, the input serving as a set operating value for at least one driving parameter. The controller generates control signals, which are sent to regulating means that actuate the motor of the mobile mining machine. Using sensors on the machine, actual values of the driving parameter are measured in real-time and fed to the controller for comparison with the original set values. Any difference in the values is compensated for when the controller sends control signals to the regulating means causing readjustment of the driving parameter of the mining machine. The control system is applicable to crawler-driven powered vehicle units to ensure synchronous crawler movement for both linear and non-linear paths.

An apparatus for transporting a load is described, including: a body including a part or portion for engaging with or connecting to a load to be transported; a ground-engaging device supporting the body, the ground-engaging device for effecting movement of the body over a surface; a transmitter module; a receiver module; and a controller for communicating with the transmitter and receiver modules and the ground engaging device and for receiving status signals from components and/or devices of the apparatus, wherein the controller is capable of conducting a check as to the status of the components and/or devices of the apparatus, and after completing said check to provide an “apparatus operative” or “apparatus non-operative” signal to the transmitter module, wherein the transmitter module is configured to transmit the “apparatus operative” or “apparatus non-operative” signal, and wherein the receiver module is configured to receive from a first predetermined, or designated, other such apparatus its respective “apparatus operative” or “apparatus non-operative” signals.

A steering system (10) for a vehicle wheel (12) has a wheel carrier (14) for mounting a steered wheel (12), the wheel carrier (14) being rotatably mounted with respect to the vehicle about a steering axis to allow the wheel (12) to be steered. A hydraulic cylinder (20) has a piston therein and a rigid connecting rod assembly (22) extending from the piston out of the cylinder (20). The rigid connecting rod assembly (22) comprises a first section (22) adapted to reciprocate into and out of the cylinder (20) and a second section (26) rigidly extending from the first section (22) to a pivot point connection (50) where it is pivotally connected to the wheel carrier (14) at an offset from the steering axis. The hydraulic cylinder (20) is pivotally mounted on the vehicle such that it is prevented from translational movement relative to the vehicle but capable of changing its orientation with respect to the vehicle. Due to the rigid connecting rod assembly (22) and the pivot connection to the wheel carrier (14), as well as the pivotal mounting of the cylinder (20) on the vehicle, lateral strains on the seals of the hydraulic cylinder (20) are avoided.