Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Excavator bucket rod hydraulic system, excavator and method
The invention relates to an excavator bucket rod hydraulic system, an excavator and a method. The excavator bucket rod hydraulic system comprises a bucket rod oil cylinder, wherein a rod cavity and arodless cavity of the bucket rod oil cylinder are connected with a main valve bank through pipelines; the main valve bank is connected with a main pump; the main pump is connected with an oil tank; the main pump can drive hydraulic oil in the oil tank to enter the bucket rod oil cylinder through the main valve bank; the main valve bank is also connected with an oil return pipe provided with a backpressure valve; the oil return pipe is connected with the oil tank; a bypass oil pipe is arranged between a pipeline between the rodless cavity and the main valve bank and the oil return pipe betweenthe back pressure valve and the oil tank; and the bypass oil pipe is provided with a switching valve. The hydraulic system provided by the invention has the advantages that the pressure loss during bucket rod unloading is small; the operation efficiency is improved; and energy consumption is reduced.
本发明涉及一种挖掘机斗杆液压系统、挖掘机及方法，包括斗杆油缸，斗杆油缸的有杆腔和无杆腔均通过管路与主阀组连接，主阀组与主泵连接，主泵与油箱连接，主泵能够驱动油箱内液压油通过主阀组进入斗杆油缸，主阀组还与安装有背压阀的回油管连接，回油管与油箱连接，无杆腔、主阀组之间的管路与背压阀、油箱之间的回油管之间设置有旁通油管，旁通油管安装有切换阀，本发明的液压系统斗杆卸料时压力损失小，提高了作业效率，降低了能耗。
Excavator bucket rod hydraulic system, excavator and method
The invention relates to an excavator bucket rod hydraulic system, an excavator and a method. The excavator bucket rod hydraulic system comprises a bucket rod oil cylinder, wherein a rod cavity and arodless cavity of the bucket rod oil cylinder are connected with a main valve bank through pipelines; the main valve bank is connected with a main pump; the main pump is connected with an oil tank; the main pump can drive hydraulic oil in the oil tank to enter the bucket rod oil cylinder through the main valve bank; the main valve bank is also connected with an oil return pipe provided with a backpressure valve; the oil return pipe is connected with the oil tank; a bypass oil pipe is arranged between a pipeline between the rodless cavity and the main valve bank and the oil return pipe betweenthe back pressure valve and the oil tank; and the bypass oil pipe is provided with a switching valve. The hydraulic system provided by the invention has the advantages that the pressure loss during bucket rod unloading is small; the operation efficiency is improved; and energy consumption is reduced.
本发明涉及一种挖掘机斗杆液压系统、挖掘机及方法，包括斗杆油缸，斗杆油缸的有杆腔和无杆腔均通过管路与主阀组连接，主阀组与主泵连接，主泵与油箱连接，主泵能够驱动油箱内液压油通过主阀组进入斗杆油缸，主阀组还与安装有背压阀的回油管连接，回油管与油箱连接，无杆腔、主阀组之间的管路与背压阀、油箱之间的回油管之间设置有旁通油管，旁通油管安装有切换阀，本发明的液压系统斗杆卸料时压力损失小，提高了作业效率，降低了能耗。
Excavator bucket rod hydraulic system, excavator and method
一种挖掘机斗杆液压系统、挖掘机及方法
CHEN KAI (Autor:in) / WANG BIN (Autor:in) / CHEN WEIXIONG (Autor:in) / SUN YANNING (Autor:in) / HU YUEPING (Autor:in) / MENG XIAOXING (Autor:in) / YUAN YURONG (Autor:in)
10.11.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02F
Baggern
,
DREDGING