SYSTEM OF PRESSURE CONTROL IN CIRCUIT OF HYDRAULIC PROTECTION OF TILLAGE TOOL SECTIONS Russian patent published in 2025 - IPC F15B13/44 A01B61/04 A01B63/32 A01B49/02 

FIELD: agriculture; machine building.

SUBSTANCE: invention relates to the field of agricultural machine building and can be used for automatic adjustment of working tillage tools, sections of chisel-disk tools, also referred to as chisel-disk units (ChDU), to the resonance mode of operation. Tillage tool sections hydraulic protection circuit pressure control system, including hydraulic system consisting of hydraulic hoses with connecting couplings, made in the form of tees, pressure gauge assembly, hydraulic accumulators, hydraulic cylinders installed on each post of the working section of the tillage tool, at that, on the post of the working section of the tillage tool there is an accelerometer with a valid range of linear operation of not less than 10 g and a frequency range of 10-13 Hz for recording the values of horizontal accelerations of the section in the longitudinal direction with a sensitivity error of not more than 2.1 % in the full temperature range of -11-85 °C, pressure gauge assembly with a hydraulic valve is equipped with a servo drive system Ya-AVO01, which allows reducing pressure in the hydraulic system with a minimum pitch of 0.11-0.13 bar and connected to the control system by means of electric wires, wherein control system is powered by tractor electric circuit and consists of power supply unit and ESP8266 microcontroller.

EFFECT: automatic adjustment of pressure in hydraulic system of working sections of tillage tools to resonance mode of operation with maintenance of this mode at varying physical and mechanical characteristics of soil background.

1 cl, 1 dwg