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.

A mobile machine includes a computerized system for determining a synchronized free-floating center of rotation. The synchronized free-floating center of rotation effectively coordinates the rotation of the machine's tracks or wheels in that it constrains the angles of rotation. The synchronized free-floating center of rotation is calculated based on a line-line intersection derived from a combined attack angle and one or more known reference points. Such system may allow rotation and counter-rotation utilizing a uniform hydraulic pressure for hydraulically driven tracks.

The present invention relates to an articulated tracked vehicle comprising a front and a rear vehicle unit connected by means of a rigid load-carrying frame. The load-carrying frame is pivotally attached to the front vehicle unit about a substantially vertical front steering link and pivotally attached to the rear vehicle unit about a substantially vertical rear steering link. The vehicle further comprises control means arranged to steer the front vehicle unit relative to the load-carrying frame about the front vertical steering link and to steer the rear vehicle unit relative to the load-carrying frame about the rear vertical steering link, wherein the control means is arranged such that the front and rear vehicle units are individually steerable relative to the load-carrying frame about their respective vertical steering links.

An automatic guided vehicle comprises a vehicle body, a swerving portion, a controlling portion and a driving portion. The vehicle body comprises two front wheels, a front wheel shaft connecting between the two front wheels, two back wheels and a back wheel shaft connecting between the two back wheels. The swerving portion comprises a front swerving shaft, a front gear, a back swerving shaft, a first back gear, a swerving driver and a conveying belt. The controlling portion drives the swerving driver to rotate. The driving portion is installed to the back wheel shaft and driving the back wheel shaft to rotate.

The present disclosure discloses an industrial vehicle driving in four directions and a traveling mechanism for the industrial vehicle. The traveling mechanism for the industrial vehicle driving in four directions comprises four wheel sets at bottom of the vehicle body, the wheel sets are sequentially connected to form a quadrangle; one wheel set is a rotating wheel set, another wheel set is a reversible directional wheel set, and the axis direction of the rotating wheels is switched between two directions through the rotating action of a rotating shaft of the wheel set; the other two wheel sets are variable-state wheel sets, and the rotating wheel state are switched between a directional state and a follow-up universal state. The present disclosure has simple structure, low cost, good supporting stability, and usage range, usage efficiency and maneuvering capability of the industrial vehicle are facilitated.

An automobile steering system for controlling the steering of left and right front wheels of an automobile, a left support shaft being provided on the left front wheel, and a right support shaft being provided on the right front wheel, the automobile steering system having a steering wheel, a steering transmission device, a left rotary table, a right rotary table and a steering device, wherein the steering wheel is connected to one end of the steering transmission device, and the other end of the steering transmission device is jointed with the steering device; the left and right rotary tables are respectively located at two ends of the steering device, the left rotary table being connected to the left support shaft, and the right rotary table being connected to the right support shaft; and the steering device has a left steel wire rope, a right steel wire rope and a synchronous belt, two ends of the left steel wire rope are respectively wound around the left rotary table and the synchronous belt, and two ends of the right steel wire rope are respectively wound around the right rotary table and the synchronous belt. The steering system cleverly adopts the steel wire ropes for the steering control of the wheels, has a simple structure, low manufacturing difficulty, low manufacturing costs and high accuracy, and is especially suitable for use in an electric vehicle.

The universal wheel includes a base member, a vertical axle, a lift member, and a wheel member. The lift member adjusts the universal wheel's height. A first driving element, a second driving element, and an engaging element are configured on the base member and the wheel member. The first driving element for turning the base member laterally within 360 degrees. The second driving element is for rolling the wheel member around its lateral axle. The engaging element couples or decouples an external shaft with the lateral axle of the wheel member. As such, through the first and second driving elements, and the engaging element, the universal wheel can control a height from the ground and can be rolled forward, laterally, obliquely, turned 360 degrees when standing in place, or in a combination of these operations.

A drill rig with a steering system may include a substructure having a wheelhouse, a drill floor arranged atop the substructure, a mast extending upwardly and above the drill floor, and a steering system arranged within the wheelhouse. The steering system may include a wheel assembly comprising an electric motor configured for driving rotational motion of a wheel, a deployment device configuring for deploying the wheel assembly to carry the drill rig, and a steering mechanism configured for selective engagement with the wheel assembly and rotating the wheel assembly.

A drill rig with a steering system may include a substructure having a wheelhouse, a drill floor arranged atop the substructure, a mast extending upwardly and above the drill floor, and a steering system arranged within the wheelhouse. The steering system may include a wheel assembly comprising an electric motor configured for driving rotational motion of a wheel, a deployment device configuring for deploying the wheel assembly to carry the drill rig, and a steering mechanism configured for selective engagement with the wheel assembly and rotating the wheel assembly.

Provided are a transportation device for transporting heavy plate-shaped cargoes such as thick plate products, and a transportation system using the transportation device. The transportation device may include: a device body unit; a device moving unit provided on the device body unit to move the transportation device; and a cargo loading unit provided on the device body unit for self-loading cargo. The transportation device is capable of rapidly loading and transporting plate-shaped heavy objects such as thick plate products of an iron mill without using additional lifting/unloading apparatuses and heavy pallets (cassettes) for markedly decreasing the total transportation (distribution) time necessary for lifting, transportation, and unloading of cargo, providing efficient transportation environments, improving productivity, and decreasing costs.