37 - Construction and mining; installation and repair services
Goods & Services
Earth moving machines, namely, drilling machines, [ excavators, backhoes, graders, scarifiers;] cranes; drilling machines installed on trucks [ ; parts of machines, namely, gearboxes, hydraulic motors, valves, bearings, pulleys, winches, pumps, filters for earth moving machines, shock absorbers, cylinders, electronic control systems sold as integral components of earth moving machines ] [ Installation, repair and maintenance of earth moving machines; rental of excavators ]
2.
DRILLING MACHINE WITH OPTIMIZED TOOL ROTATION BY MEANS OF ENERGY ACCUMULATION SYSTEM
Drilling machine (100) comprising: a mast (4), a kelly bar (6) provided with a drilling tool (12), a winch (7) supporting and moving the kelly bar, a hydraulic motor (17) of the winch, a rotary (10) mounted on the mast (4) and connected to the kelly bar to rotate the kelly bar, a hydraulic motor (18) of the rotary, a main motor (13), at least one pump (14) actuated by the main motor and hydraulically connected to the hydraulic motors (17, 18) of the winch and of the rotary, a translation system (1 1 ) of the rotary, and an energy accumulation system (A) connected to the winch (7) of the kelly bar and to the translation system (1 1 ) of the rotary; said energy accumulation system (A) being configured to accumulate electrical or hydraulic energy during a descending travel of the kelly bar and use said accumulated energy to actuated the translation system (1 1 ) of the rotary.
Using a rock crushing system for widening a pilot hole on rocky terrain includes taking a plurality of crushing elements, for example roller bits and/or cutter discs, pressing the crushing elements against the lateral wall of the pilot hole and at the same time rolling the crushing elements along a cylindrical portion of the lateral wall, widening the pilot hole. The crushing elements, free to rotate with respect to an axis thereof, are radially pushed by hydraulic cylinders. Stabilising means exemplarily include a basket abutting the lateral wall to keep a main body bearing the hydraulic cylinders centered with respect to an axis of the pilot hole during the rock crushing.
E21B 7/28 - Enlarging drilled holes, e.g. by counterboring
E21B 10/34 - Drill bits with leading portion, i.e. drill bits with a pilot cutterDrill bits for enlarging the borehole, e.g. reamers with expansible cutting tools of roller-cutter type
A rock crushing method and unit (1) for widening a pilot hole (3) realised on rocky terrain (4) is described. The method comprises the following steps: taking a plurality of crushing elements (21), for example roller bits and/or cutter discs, for crushing rock internally of a pilot hole (3) realised on rocky terrain (4); pressing the crushing elements (21) against the lateral wall of the pilot hole (3) and at the same time cause the crushing elements (21) to roll along a cylindrical portion of the lateral wall of the pilot hole (3), so that the action exerted by the crushing elements (21) on the lateral wall of the pilot hole (3) determines the crushing of the lateral wall of the pilot hole (3) and thus the widening of the pilot hole (3). The crushing elements (21), free to rotate with respect to an axis thereof, are radially pushed by the hydraulic cylinders. Stabilising means can be provided, for example a basket, for abutting the lateral wall of the pilot hole (3) with the aim of keeping the main body (2) bearing the hydraulic cylinders centred with respect to the axis of the pilot hole (3) during use of the rock crushing unit.
E21B 10/32 - Drill bits with leading portion, i.e. drill bits with a pilot cutterDrill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
A drilling machine including: a lower unit, an upper unit, a mast, a rotary, a drilling tool connected to a telescopic Kelly bar and a blocking system suitable for blocking the rotation of the upper unit relative to the lower unit. The blocking system includes: a cylinder revolvingly mounted on a frame of the lower unit, a plurality of vises mounted on the frame of the lower unit in such a way to block the cylinder integrally with the lower unit, and an actuator mounted in the upper unit to actuate a blocking pin that is engaged in a hole of a bushing of a flange that protrudes radially outwards from said cylinder in such a way to integrally block the cylinder to the upper unit.
A foundation drilling machine (100) comprises: a base (1) revolvingly mounted on an undercarriage (2), a rotation system (7) that allows the base to rotate with respect to the undercarriage, a tool (50) intended to work the ground, an articulated system (54) used to connect the tool (50) to the base (1), a braking system (B) to block the rotation of the base (1) with respect to the undercarriage (2). The braking system (B) comprises: a disc unit (8) fixed to the undercarriage (2) and a caliper unit (9) fixed to the base (1) and intended to tighten the disc unit (8) in such a way to block the rotation of the base (1) with respect to the undercarriage (2).
B23B 39/00 - General-purpose boring or drilling machines or devicesSets of boring or drilling machines
B66C 23/36 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes specially adapted for use in particular locations or for particular purposes mounted on road or rail vehiclesManually-movable jib cranes for use in workshopsFloating cranes
A public works vehicle has a base, moving means supporting the base, brackets joined to the frame of the base, a lifting system suitable for lifting a counterweight. The lifting system has a first arm hinged to the frame, at least one thrust actuator connected to the frame and to the first arm to move the first arm, a second arm slidingly mounted with respect to the first arm, a lifting actuator connected to the first arm and to the second arm to move the second arm, a connection system connected to the second arm and to the counterweight.
B62D 49/08 - Tractors having means for preventing overturning or tipping
E21B 7/02 - Drilling rigs characterised by means for land transport, e.g. skid mounting or wheel mounting
B66C 23/72 - Counterweights or supports for balancing lifting couples
B66C 23/74 - Counterweights or supports for balancing lifting couples separate from jib
B66C 23/76 - Counterweights or supports for balancing lifting couples separate from jib and movable to take account of variations of load or of variations of length of jib
9.
Drilling machine with optimized tool unloading system
A drilling machine has a drilling tool, a rotary, a main engine that actuates a high-pressure pump, a hydraulic motor, actuated by the high-pressure pump and connected to the rotary at least one pressure sensor disposed in a discharge pipe. The fluid flows from the high-pressure pump to the hydraulic motor. An adjustment valve is disposed in a discharge pipe such that the fluid flows from a low-pressure circuit to the hydraulic motor in order to adjust the cylinder capacity of the hydraulic motor according to the pressure measured by the pressure sensor when the tool is unloaded.
E21B 7/02 - Drilling rigs characterised by means for land transport, e.g. skid mounting or wheel mounting
F16H 47/04 - Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
A drilling machine (100) comprises: a drilling tool (U), a rotary (R), a main engine (E) that actuates a high-pressure pump (P1), a hydraulic motor (M), with variable cylinder capacity, actuated by the high-pressure pump (P1) and connected to said rotary (R), at least one pressure sensor (S1) disposed in a discharge pipe (L1) wherein the fluid flows from the high-pressure pump (P1) to the hydraulic motor (M), and an adjustment valve (V) disposed in a discharge pipe (L4) wherein the fluid flows from a low-pressure circuit to the hydraulic motor (M) in order to adjust the cylinder capacity of the hydraulic motor (M) according to the pressure measured by the pressure sensor (S1) when the tool is unloaded.
