ROSSIJSKAJA FEDERATSIJA; OT IMENI KOTOROJ VYSTUPAET MINISTERSTVO PROMYSHLENNOSTI I TORGOVLI ROSSIJSKOJ FEDERATSII
发明人:
EREMEEV NIKOLAJ SERGEEVICH,Еремеев Николай Сергеевич,KOROLEV VIKTOR EVGENEVICH,Королев Виктор Евгеньевич,ERMOLEV VALERIJ PETROVICH,Ермольев Валерий Петрович,ZLOBIN SERGEJ JUREVICH,Злобин Сергей Юрьеви
申请号：
RU2013101636/13
公开号：
RU0002529156C2
申请日:
2013.01.15
申请国别(地区):
RU
年份:
2014
代理人:
摘要：
FIELD: machine building.SUBSTANCE: invention relates to an automatic control system for a harvesting head of a feller buncher. The system comprises a hydraulic circuit for grab arms drive, a hydraulic circuit for lifting and lowering of a grapple boom, a hydraulic circuit for a cutting attachment drive. The hydraulic circuit for lifting and lowering of a grapple boom comprises an electrically controlled hydraulic distribution valve and a hydraulic valve "OR" with one its inlet being connected to a hydraulic servocontrol unit and the other - to the hydraulic distribution valve. The hydraulic circuit for a cutting attachment drive includes a normally closed electrically controlled hydraulic valve which is connected to the pumping line of a hydraulic motor and is fitted by a time relay for electromagnet switching-on delay until the stage of active cutting by the cutting attachment, as well as a sensor - pressure relay with its input being connected to the electrically controlled hydraulic valve. The hydraulic line of the cutting attachments hydrocylinder "supply" cavity is fitted by a normally open electrically controlled hydraulic valve with a time relay for the delay of its switching off. The system is equipped by an additional subsystem for electrical control of the said hydraulic circuits with its control tool being electrically coupled to the connector of voltage for the additional control subsystem, an ON/OFF switch for the electromagnet of the electrically controlled hydraulic distribution valve in the hydraulic circuit for grab arms drive control, an ON/OFF switch for the electromagnet of the additional electrically controlled two-position hydraulic distribution valve in the hydraulic circuit for the boom lifting and lowering, an ON/OFF switch for the electromagnet of the electrical control valve in the hydraulic circuit for cutting attachment drive control, an ON/OFF switch for the electromagnet of normally open electrically controlled hydraulic valve in the h
