Casadei, Giovanni

Described is an operator unit, in particular for an operator vehicle, comprising: at least one actuator (A1), which can be associated with two or more tools or equipment which are alternative to each other; a control device (S), which is movable and can be positioned in an operating space; a control module (U) connected to the control device and to the actuator (A1) and designed to send to the actuator (A1) a control signal whose level is a function of a position adopted by the control device (S) inside said operating space; characterised in that: the control module (U) is programmed with at least two control functions, each of which relates a position adopted by the control device (S) inside said operating space with a level of the control signal; the control module (U) is programmed with a control algorithm configured for: receiving an identification signal which identifies a tool associated with the actuator (A1); selecting a control function on the basis of said identification signal; sending to the actuator (A1) a control signal obtained from the selected control function.

Described is a telescopic cylinder, comprising:a first cylinder (C1), comprising a first piston (11) slidable in a sealed fashion in a jacket (A1) which comprises an extension chamber (12) and a re-entry chamber (13), separated from each other by a head (11a) of the first piston (11);a second cylinder (C2), comprising a second piston (21) slidable in a sealed fashion in a second jacket (A2) which comprises an extension chamber (22) and a re-entry chamber (23), separated from each other by a head (21a) of the second piston (21);wherein the jacket (A1) of the first piston (11) is integral with the second piston (21);an outer conduit (31, 32), connected to the re-entry chamber (23) of the second cylinder (C2) for allowing the supply and discharge of oil.The outer conduit (31, 32) comprises:a first body (31), comprising a first slider (31a) slidable in a sealed fashion in a first sleeve (31c) constrained to the second piston (21);a second body (32), comprising a second slider (32a) slidable in a sealed fashion in a second sleeve (32c) which is constrained to the second jacket (A2) and is in fluid communication with the re-entry chamber (23) of the second cylinder (C2), said second slider (32a) being constrained to the first sleeve (31c);wherein the first slider (31a) comprises a first inner channel (310) which emerges in the first chamber (31b); wherein the second slider (32a) comprises a second inner channel (320) which emerges in the second chamber (32b);wherein the first chamber (31b) is in fluid communication with the second inner channel (320).

Method for monitoring the operation of a machine (10) for an optimised removal of material from products (P), comprising the steps of: Acquiring first data (d1) corresponding to a measurement of the initial weight (wi) of a product (P) entering the machine (1); Acquiring second data (d2) corresponding to a measurement of the final weight (wf) of the product (P) exiting the machine (1), following the removal of material from the product (P); Carrying out an operation of comparing between the first data (d1) and the second data (d2) to obtain data (D) of the difference between the first data (d1) and the second data (d2); Computer program comprising instructions which, when the program is run by a computer comprising a control unit (4), ensure that the computer implements the steps of the method. A machine (10) for the controlled removal of material from a product (P), comprising the control unit (4).

A portable boring machine, comprising: a machine body (2); a rotation assembly, provided with a coupling ring (31) rotating about the rotation axis (X) and configured to allow an integral coupling in rotation about the rotation axis (X) with a tool-bearing shaft (S); an advancement assembly, provided with a carriage (41) movable parallel to the rotation axis (X), which comprises fixing means (42) for fixing to the tool-bearing shaft (S), structured so as to enable the rotation of the shaft (S) about the rotation axis (X) and to be constrained to the shaft (S) relative to the translation along the rotation axis (X). a machine coupling assembly (5) provided with a radial locking system with a removable body, to allow the machine to be fixed to the support (A) by means of a radial insertion in addition to the traditional axial insertion. The carriage (41), the coupling ring (31) and the insertion part (5) project outside the machine body (2) transversely to the rotation axis (X).

A telescopic cylinder, comprising:a first cylinder (C1), comprising a first piston (11) slidable in a sealed fashion in a jacket (A1) which comprises an extension chamber (12) and a re-entry chamber (13), separated from each other by a head (11a) of the first piston (11);a second cylinder (C2), comprising a second piston (21) slidable in a sealed fashion in a jacket (A2) which comprises an extension chamber (22) and a re-entry chamber (23), separated from each other by a head (21a) of the second piston (21);wherein the jacket (A1) of the first piston (11) is integral with the second piston (21);a conduit for connection to the extension chamber (22) of the second cylinder (C2) which is made at least partly through said first piston (11) and said second piston (21);a compensating device (100), provided with a control module (M) configured for adjusting a flow rate of operating fluid to be fed to the extension chamber (22) or discharged from the extension chamber (22) of the second cylinder (C2) as a function of a variation of volume per unit time of the extension chamber (12) of the first cylinder (C1).

Method for acquiring the number of revolutions per minute N for a pump 100 of the rotary type, operating at a frequency f and having a number of pumping elements n, comprising the steps of:- obtaining a raw pressure signal S1;- normalizing the raw pressure signal S1 obtaining a clean pressure signal S2;- obtaining an average pressure signal M from the clean pressure signal S2;- identifying negative peaks Pn and positive peaks Pp of the clean pressure signal S2;- obtaining a pulse train S3;- normalizing the pulse train S3 for the frequency f and the number of pumping elements n, obtaining the number of revolutions per minute N of the pump 100.Computer program comprising instructions which, when the program is executed by a processing unit U, cause the computer to perform the steps of the acquisition method.Control unit 10 for a pump 100 comprising:a primary module 1, operatively connected to the pump 100, a secondary module 2 communicating with the primary module 1 by means of a communication system 3,wherein the primary module 1 comprises a pressure sensor 11 configured to detect pressure values P of the pump 100 and to transmit a raw pressure signal S1, obtained from the pressure values P, to the secondary module 2, andwherein the secondary module 2 comprises the processing unit U.Pumping system 1000 comprising the pump 100 of the rotary type and the control unit 10.

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