SYSTEM OF AUTOMATED CONTROL OF DIGGING PROCESS BY SINGLE-BUCKET TRENCH EXCAVATORS FOR INSTALLATION OF PIPELINES AND ENGINEER COMMUNICATIONS BETWEEN NON-HORIZONTAL BOTTOM AND ON SITES WITH SLOPES Russian patent published in 2019 - IPC E02F9/20 E02F5/14 

FIELD: construction.

SUBSTANCE: invention relates to construction equipment. In particular, a system for automated control of the digging process by single-bucket trench excavators for laying pipelines and engineering communications, mainly with a non-horizontal bottom and in sections with slopes, containing an electron-hydrostatic depth gauge, a bucket mounted on a bucket of an excavator hydraulically connected to an open and filled with a liquid container located on the cab of the excavator driver along its axis of rotation, electrostatic differential pressure sensor, bucket depth indicator, electrically connected to the electrostatic differential pressure sensor, and the digging depth adjuster, according to the invention, the connection between the electrostatic differential pressure sensor and the bucket depth indicator is made through the electron-hydrostatic depth gauge and the analog-to-digital converter of the signals of the electrostatic differential pressure sensor to the digital code installed between them, the input of which is connected to said electrostatic sensor and a digital calculator of the ladle depth whose input is connected to the output of the analog-to-digital converter and the output is connected to the bucket depth indicator. System is equipped with an ultrasonic radial distance meter from the excavator cab to the bucket, consisting of an ultrasonic pulse signal emitter placed on the ladle in the immediate vicinity of the pressure transducer sensor, which sets the pulse generator connected to said emitter of pulse signals, receiver of ultrasonic pulse signals located on the cab of the excavator driver, a delay time meter of the received ultrasonic signals, one of the inputs of which is connected to the receiver of ultrasonic pulse signals, and its other input is connected to another output of the master pulse generator, a digital calculator of radial distance to the ladle, whose input is connected to the output of said time delay meter. Digital calculator of the horizontal bucket displacement relative to the excavator's cab is also introduced in the system, one of whose inputs is connected to a digital calculator of radial distance to the bucket, its other input is connected to the output of a digital depth calculator. Output of the digital horizontal offset calculator is associated with the bucket depth indicator, which is connected to the digging depth setting.

EFFECT: system of automated management of trench digging process is proposed.

1 cl, 2 dwg