Abstract: A tubing device is operatively connectable to an excavation machine. The tubing device comprises a base frame, at least one guiding tower operatively connected to the base frame, and a tube operating unit, operatively connected to the guiding tower. The tube operating unit is slidable along the guiding tower and is provided with engaging means capable of both selectively holding a tube segment, and of transmitting a rotary motion and an axial sliding movement to such a tube segment so as to allow the progressive driving in the ground and subsequent extraction from the ground.

Abstract: The method comprises the following operations: delivering a moving power to at least one linear actuator (1, 7) arranged to move a mast (5) mounted so as to swing with respect to a self-propelled structure (3) among a plurality of moving operating configurations; delivering an actuating power to a winch (8) which is supported by said self-propelled structure (3) and adapted to allow the winding or unwinding of a respective traction element which is constrained to a drilling assembly, in particular a bank of telescopic or kelly bars (12) to which a drilling tool can be associated; at least temporarily preventing a relative axial movement between said drilling assembly (12) and said mast (5) during the passage between at least two consecutive operating configurations; and automatically controlling the delivery of said moving power in a coordinated manner with the delivery of said actuating power when said axial movement is hindered.

Abstract: A device for supporting and guiding supplying lines used with a digging tool on a drilling machine is described. The device comprises a support branch, formed by a plurality of spacers, adjacent to one another in which a rope or tie-rod is inserted in a housing comprised in the spacers, a supplying pipe for the supplying line and a crosspiece comprising a seat adapted to support the supplying pipe. Each pair of adjacent spacers comprises retaining means. Each retaining means comprises a retaining element, associated to a first spacer of a pair of adjacent spacers, and a slot having a shape substantially matching the shape of the retaining element, associated to a second spacer of the pair of adjacent spacers. A retaining element, during use, engages with a slot allowing relative axial movement, in the longitudinal direction of the rope, of a predetermined amount.

Abstract: The invention includes digging equipment having a self-propelled base machine provided with an arm that supports a digging tool. The digging tool is provided with a device for crumbling soil. The digging tool is operatively connected to the base machine through a suspending flexible element that can be wound or unwound by a winch arranged on the base machine. The base machine also includes a main power engine, to actuate all the hydraulic apparatuses of the digging equipment, and a hydraulic system consisting of two independent and separate hydraulic circuits (S; U). A first hydraulic circuit (S) is configured to control and supply the main service apparatuses of the base machine, including a movement apparatus for moving the digging tool. A second hydraulic circuit (U) is configured to control and supply the main digging apparatuses of the digging tool, including at least the actuators of the device for crumbling soil.

Abstract: In the auger cleaning device (8) according to the invention, in the closed configuration the tool-holder support forms a pass-through opening (82) arranged for allowing the passage of a helical drilling tool (6), the cleaning tool (170) engaging with the screw of the drilling tool (6) and, actuated by the actuation system (12, 12?,12?, 4), is arranged for rotating around the drilling tool (6) following at least one of its threads (60) so as to remove the debris lying on the drilling tool (6). In the open configuration the cleaning tool (170) is disengaged from the drilling tool (6) and preferably farther from it, with respect to when it is in the closed configuration.

Abstract: A plant for treating drilling muds, which can be installed in building sites for performing excavations or foundations, includes a main mud storage tank containing clean mud ready to be conveyed to the same excavation, a first grizzly screen, a mud processing hopper, at least one cyclone stage provided with at least an inlet in which entering mud to be treated is introduced and with at least a first outlet from which lightened mud (Fa) exits having a lower density than the entering mud, and with at least a second outlet from which a high density mud (Fd) exits, such high density mud having a higher density than the entering mud, and a dewatering screen. Said devices are connected together through pipes in such a way that a mud filled with detritus coming from the excavation is treated in order to be able to be reused once it is returned to the excavation.

Abstract: Disclosed a device for digging diaphragms, including a framework and a half-shell support body, fixed in the lower part of the framework, which supports a first pair of half-shells moved to open and close by a first actuation system. The device also has a reservoir operatively connected to the first pair of half-shells to contain the soil dug by half-shells. The reservoir is normally positioned between the framework and the half-shells and has a volume configured to contain an amount of soil corresponding to the amount of soil dug by such half-shells during a single operating cycle of the device. The device can also include separation means actuated for isolating the soil contained in the reservoir.

Abstract: A modular system of multipurpose rods for drilling soil is constituted by rods (1) crossed by an internal passage (2) for the passage of concrete, of substantially cylindrical shape, that completely crosses the rod; each of the rods is provided at the endings with a male insert (5) and a female insert (6) respectively, adapted to be plugged in one to the other for permitting the assembly in batteries of any length. The inserts (5, 6) are provided with transmitters (11, 11a) for transmitting the rotation along the whole battery of rods (1) and arranged for fixing elements that reduce the internal passage (2).

Abstract: A control system for a machine for digging and/or drilling earth, wherein the machine for digging and/or drilling earth comprises a digging head arranged to dig the soil, a flexible load-bearing cable arranged to support the digging head during normal operation, at least a first winch and a second winch, each of which in turn comprises a drum about which at least part of the flexible load-bearing cable can be wound, and a motor arranged to actuate the drum; the control system has an electronic control unit adapted for controlling the movement of the winches and a velocity sensor device arranged in each branch of load-bearing cable coming out from the winches adapted for monitoring the movement of the load-bearing cable.

Abstract: The helical drill bit defines a helical end section of a helical structure formed at its periphery by an auger of an excavation assembly, and it is associated or associable with a support portion of the auger. Such a support portion defines a proximal section of the helical structure, which has an extension substantially centered around a longitudinal axis (X-X). The helical drill bit is adapted to rotate about the longitudinal axis (X-X) together with the support portion so as to drill a hole in the ground. The helical end section extends around an extremity axis (Y-Y; ?-?) that is not aligned relative to the longitudinal axis (X-X).

Abstract: A drilling method and device is for the execution of diaphragm walls by cutters, (131, 105, 110) carried by a frame (130) supported by suspension and movers (102). A guide hole (200) is formed as far as the depth specified in the design at the center of the panel to be made. Excavation is started with the introduction into the guide hole (200) of a guide element (101) that is fixed with respect to the tool-holder frame and having geometry such as to copy the guide hole along which it slides during excavation. Excavation is carried out as far as the depth specified in the design. The tool is extracted from the excavation and the excavation is filled with concrete and a panel is formed. The method is repeated so as to form adjacent panels.

Abstract: High pressure pumps for injecting cement mixtures are provided. Such pumps are configured so that the frequency and costs of servicing are greatly reduced.

Abstract: A machine for the drilling of the ground includes a guide tower (2) along which slides a group (3) for the handling of a battery of drilling rods (5) which moves along guides (21) of the tower. The group includes a sleeve (31) which gives rotation to a tube (4) to the lower part of which can be constrained at least a drilling rod (5) with a digging tool (6) or directly a digging tool (6).

Abstract: A hydraulic motor or pump includes eccentric shafts arranged in a planet position with respect to the output shaft, subject to the action of two propelling members for each shaft, which are arranged in a tangential position with respect to the output shaft and act on intermediate planetary fixed parts alternated with the shafts. The propelling members receive flow of pressurized fluid regulated by rotatory openings, which connect the propelling members to the pressure circuit or to the discharge one. The motor can be connected, through the eccentric shafts, to ordinary or planetary gearings. The gearing presents an actual piston displacement and one or two different equivalent piston displacements. The shape of the motor is annular, or sectoral, with a circular open space available inside the motor for different applications. The number of the planet shafts has no limits, since they independently transmit the torque-allowing annular shapes of any size.

Abstract: In the auger cleaning device (8) according to the invention, in the closed configuration the tool-holder support forms a pass-through opening (82) arranged for allowing the passage of a helical drilling tool (6), the cleaning tool (170) engaging with the screw of the drilling tool (6) and, actuated by the actuation system (12, 12?, 12?, 4), is arranged for rotating around the drilling tool (6) following at least one of its threads (60) so as to remove the debris lying on the drilling tool (6). In the open configuration the cleaning tool (170) is disengaged from the drilling tool (6) and preferably farther from it, with respect to when it is in the closed configuration.

Abstract: A supporting and guiding device for power lines 2 is intended for use in association with an excavation tool 15 mounted on a drilling machine 1. The device is formed by at least one supporting branch 4, having spacer elements 3, wherein a cable 16 is inserted into at least one housing in said spacer 3, and at least one supply hose 22 for the at least one line 2. The supply hose 22 contains hydraulic hoses and/or electric cables for signal transmission. The device includes transversal connection elements or cross members 42 which are adapted to support supply hoses 22 and are connected to the branch 4. Cable 16 of branch 4 runs through each spacer 3; also, the same cable 16 is subject to a preload generated by the insertion of at least one tensioning element.

Abstract: A cutting/mixing tool for thin diaphragm walls is mounted at the end of at least one drilling rod (47) moved by a slidable assembly (42, 62) along a tower (41), carried by an operating drilling machine (40). The tool (45) has a body (10), which bears in its central part two digging/mixing wheels (20a, 20b) provided on the periphery with cutters (82) and set alongside one another at a minimum distance (d) and coaxial about an axis (x) substantially perpendicular to the direction of digging (z). The wheels (20a, 20b) project from slits (81) of the body (10), which contains at least partially means (1-4, 50-52) for transmission of motion to the wheels, the devices being positioned externally with respect to the wheels.

Abstract: A device for supporting and guiding supplying lines used with a digging tool on a drilling machine is described. The device comprises a support branch, formed by a plurality of spacers, adjacent to one another in which a rope or tie-rod is inserted in a housing comprised in the spacers, a supplying pipe for the supplying line and a crosspiece comprising a seat adapted to support the supplying pipe. Each pair of adjacent spacers comprises retaining means. Each retaining means comprises a retaining element, associated to a first spacer of a pair of adjacent spacers, and a slot having a shape substantially matching the shape of the retaining element, associated to a second spacer of the pair of adjacent spacers. A retaining element, during use, engages with a slot allowing relative axial movement, in the longitudinal direction of the rope, of a predetermined amount.

Abstract: A device for measuring the torque or force exerted by a drilling machine during a rotation, driving or lifting of a tool. The measuring device includes an engaging device with a drilling battery or with a shaft of at least a drilling equipment or rotary of the machine the engaging device is susceptible of symmetrically or axial-symmetrically locking the drilling battery or the shaft preventing the rotation and/or the axial displacement in a position in correspondence to the tool. The engaging device is associated with at least a transducer for the detection of at least a maximum torque or of at least a maximum force exerted by the machine; and the measuring device is fixedly constrained to the drilling battery or to the shaft.

Abstract: An apparatus for drilling the ground, in particular for the installation of foundation piles, includes a drilling turret (2) with a vertical guiding antenna (3), a rotary head for driving drilling batteries including a continuous ground drilling rotary propeller (5) housed inside at least one covering tube (7). A inner drive is adapted to drive said propeller (5), and a second external drive is connected to the tube (7) and allowing movement thereof, a driving cab (8) for an operator, which includes all the manipulators for operating the machine and the systems for displaying measured parameters. The apparatus further includes a system for controlling the excavation parameters, which is enabled to receive information from the drilling parameter control sensors.