Disclosed are an adjustable load pressure compensation balancing system, an end cover, and a counterbalance valve. The adjustable load pressure compensation balancing system comprises: an adjustable orifice control module and a counterbalance valve control module, wherein the adjustable orifice control module is used for receiving control oil generated when a luffing system descends and oil from a descending cavity of a luffing cylinder, and the quantity of the control oil received by the adjustable orifice control module is increased with the increase of the pressure applied to the adjustable orifice control module by the oil from the descending cavity of the luffing cylinder; the counterbalance valve control module is used for receiving the control oil generated when the luffing system descends, and the quantity of the oil received by the counterbalance valve control module from the descending cavity is decreased with the decrease of the quantity of the control valve control module acting on the counterbalance valve control module; the pressure applied to the counterbalance valve control module by the control oil is maximum when the luffing system starts to descend, and then decreases gradually; and the pressure applied to the adjustable orifice control module by the oil from the descending cavity is minimum when the luffing system starts to descend, and then increases gradually. The adjustable orifice control module and the counterbalance valve control module form a pilot control orifice network to control the opening degree of a spool of the counterbalance valve, so pilot pressure fluctuations can be effectively filtered.
ADJUSTABLE LOAD PRESSURE COMPENSATION BALANCE SYSTEM, END COVER AND BALANCE VALVE
AUSGLEICHSSYSTEM MIT EINSTELLBAREM LASTDRUCKAUSGLEICH, ENDKAPPE UND AUSGLEICHSVENTIL
SYSTÈME D'ÉQUILIBRAGE DE COMPENSATION DE PRESSION DE CHARGE RÉGLABLE, COUVERCLE D'EXTRÉMITÉ ET SOUPAPE D'ÉQUILIBRAGE
2024-05-08
Patent
Electronic Resource
English
ADJUSTABLE LOAD PRESSURE COMPENSATION BALANCE SYSTEM, END COVER AND BALANCE VALVE
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