A hydraulic system (600) and method for reducing boom dynamics of a boom (30), while providing counter-balance valve protection, includes a hydraulic actuator (110), first and second counter-balance valves (300, 400), first and second control valves (700, 800), and first and second blocking valves (350, 450). A net load (90) is supported by a first chamber (116, 118) of the hydraulic actuator, and a second chamber (118, 116) of the hydraulic actuator may receive fluctuating hydraulic fluid flow from the second control valve to produce a vibratory response (950) that counters environmental vibrations (960) on the boom. The first blocking valve prevents the fluctuating hydraulic fluid flow from opening the first counter-balance valve. The first blocking valve may drain leakage from the first counter-balance valve.

The present invention relates to a walking robotic cell for the manufacture of on-site printed buildings using a multi-axis 3D printing system, and a method for operating said walking robotic cell. The walking robotic cell comprises a quadruped mobile robotic system acting autonomously and remotely operated, a feeding device, and a multi-axis actuator, which is a reprogrammable electromechanical system, automatically controlled, and programmable offline or online in all its degrees of freedom from an external or remote computer.

A boom system for a concrete-delivery device includes a plurality of booms which are pivotably interconnected. At least one of the booms has a recess along its length, the recess configured to at least partially receive an adjacent boom when the boom system. is in a retracted position. Side walls of the boom are extended to define the recess in the form of a channel. The recess may have a depth greater than or equal to a height of the adjacent boom so that the adjacent boom is received within the recess when the boom system is in the retracted position. Alternatively, the recess may have a depth less than a height of the adjacent boom so that the adjacent boom is only partially received in the recess when the boom system is in the retracted position.

A mobile operating machine comprising a motor vehicle moved by an endothermic engine, an articulated arm, a pumping unit and a stabilizing unit wherein the endothermic engine is provided with at least two power take-offs. The mobile operating machine also comprises a hydraulic pump and an electric motor operatively connected to the endothermic engine, to the hydraulic pump and to an electric accumulator.

The invention relates to a method for controlling the movement of an end hose arranged on a concrete placement boom of a concrete pump with a display device arranged in the region of the end hose by means of a control device, comprising the following steps: outputting a signal for displaying a predefined movement direction to the display device; receiving a predefined speed for moving the end hose from an actuation device; and calculating and outputting control signals for controlling the concrete placement boom in such a way that the end hose is moved in the predefined movement direction at the predefined speed. The invention also relates to a corresponding control device, a system, a concrete placement boom and a computer program for controlling the movement of an end hose arranged on a concrete placement boom of a concrete pump.

The disclosure relates to a printer device for creating a concrete support structure of a passenger transport system configured as an escalator or moving walkway in an existing building. The printer device has at least one printer guide device, a 3D concrete printer device, which is arranged so as to be movable along the printer guide device, and a printer controller. The printer guiding device comprises at least one guideway whose guide path can be adjusted at least in the vertical direction in relation to its spatial position of use.

A concrete pump (1) includes a first frame (2a) equipped with a hopper (5) intended to receive the concrete, feet (13) for stabilizing the concrete pump (1) and a turret (10) carrying an articulated boom (6) comprising a plurality of arms (7). The articulated boom (6) carries at least one pipe (6a) for conveying the concrete between the hopper (5) and a concrete delivery location. The concrete pump (1) is equipped with any one of at least a first device for detecting cavities in the ground, a second device (22) for detecting an inclination of at least one arm (7) relative to a vertical axis (A2), a third device for detecting the deployment of the feet (13), a fourth device for detecting an attitude of the concrete pump (1) and a rotation sensor equipping the turret (10).

A foldable structure for supporting a 3D printer for building components, the foldable structure having expanded and compact positions includes: first supports spaced apart from each other in a first direction and extending in a second direction intersecting the first direction to support the foldable structure on a ground surface; second supports disposed respectively on the first supports, and being supported in a third direction for linear movement along the first supports in the second direction in the expanded position of the foldable structure; and a third support disposed between the second supports. The second supports include: shafts; and hinges disposed between the shafts and the first supports to tilt the shafts toward the first supports to transition from the expanded position to the compact position and to raise the shafts from the first supports to transition from the compact position to the expanded position.

Construction systems for constructing a structure on a foundation and methods relating thereto are disclosed. In an embodiment, the construction system includes a rail assembly configured to be mounted to the foundation. In addition, the construction system includes a gantry movably disposed on the rail assembly configured to translate along a first axis relative to the rail assembly. Further, the construction system includes a printing assembly movably disposed on the gantry and configured to translate along a second axis relative to the gantry. The second axis is orthogonal to the first axis. The printing assembly is configured to deposit vertically stacked layers of an extrudable building material on the foundation to construct the structure. The gantry has a width along the second axis that is configured to be adjusted relative to the foundation.

An hybrid mobile operating machine comprising a motor vehicle driven by an internal combustion engine, an articulated arm associated with a pipe, a pumping unit and a stabilization unit, primary services and auxiliary services, wherein the internal combustion engine is suitable to power at least a first and a second power take-off. The mobile operating machine is provided with both a first drive unit which comprises at least one electric accumulator, a first electric motor and a first hydraulic pump, and a second drive unit which comprises at least one second electric motor and a second hydraulic pump.