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: 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: Control system (40) for a machine for digging and/or drilling earth, wherein the machine for digging and/or drilling earth (10) comprises a digging head (11) arranged to dig the soil, a flexible load-bearing element (12) arranged to support the digging head (11) during normal operation, at least a first (13) and a second winch (14), each of which in turn comprises a drum (32, 33) about which at least part of the flexible load-bearing element (12) can be wound, and a motor (30, 31) arranged to actuate the drum (32, 33); the control system (40) has an electronic control unit (43) adapted for controlling the movement of the winches (13,14), and velocity sensor means arranged in each branch of load-bearing cable (12) coming out from the winches (13,14) adapted for monitoring the movement of such a load-bearing cable.

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.