Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hydraulic system of engineering machinery vehicle and engineering machinery vehicle
The invention discloses a hydraulic system of an engineering machinery vehicle and the engineering machinery vehicle, and relates to the technical field of hydraulic control of the engineering machinery vehicle. The hydraulic system of the engineering machinery vehicle comprises a main pump, a main valve group, a differential valve group and a hydraulic oil cylinder, the differential valve group comprises a valve body and a logic valve, the valve body is provided with a first oil inlet and outlet, a second oil inlet and outlet, a third oil inlet and outlet and a fourth oil inlet and outlet, and the first oil inlet and outlet is communicated with a first working oil port of the main valve group. The second oil inlet and outlet is communicated with a rodless cavity of the hydraulic oil cylinder, and the first oil inlet and outlet is communicated with the second oil inlet and outlet; the third oil inlet and outlet is communicated with the second working oil port of the main valve set, the fourth oil inlet and outlet is communicated with a rod cavity of the hydraulic oil cylinder, and the third oil inlet and outlet can be communicated with the fourth oil inlet and outlet. The logic valve is arranged in the valve body, and when oil is discharged from the first working oil port of the main valve group, return oil of a rod cavity of the hydraulic oil cylinder drives the logic valve to be opened, so that return oil enters a rodless cavity of the hydraulic oil cylinder through the logic valve.
本发明公开了一种工程机械车辆的液压系统及工程机械车辆，涉及工程机械车辆的液压控制技术领域。工程机械车辆的液压系统包括主泵、主阀组、差动阀组和液压油缸，差动阀组包括阀体和逻辑阀，阀体上设有第一进出油口、第二进出油口、第三进出油口和第四进出油口，第一进出油口与主阀组的第一工作油口连通，第二进出油口与液压油缸的无杆腔连通，第一进出油口和第二进出油口连通；第三进出油口与主阀组的第二工作油口连通，第四进出油口与液压油缸的有杆腔连通，第三进出油口能与第四进出油口连通。逻辑阀设于阀体内，主阀组的第一工作油口出油时，液压油缸的有杆腔的回油驱动逻辑阀开启，以使回油油液经逻辑阀进入液压油缸的无杆腔。
Hydraulic system of engineering machinery vehicle and engineering machinery vehicle
The invention discloses a hydraulic system of an engineering machinery vehicle and the engineering machinery vehicle, and relates to the technical field of hydraulic control of the engineering machinery vehicle. The hydraulic system of the engineering machinery vehicle comprises a main pump, a main valve group, a differential valve group and a hydraulic oil cylinder, the differential valve group comprises a valve body and a logic valve, the valve body is provided with a first oil inlet and outlet, a second oil inlet and outlet, a third oil inlet and outlet and a fourth oil inlet and outlet, and the first oil inlet and outlet is communicated with a first working oil port of the main valve group. The second oil inlet and outlet is communicated with a rodless cavity of the hydraulic oil cylinder, and the first oil inlet and outlet is communicated with the second oil inlet and outlet; the third oil inlet and outlet is communicated with the second working oil port of the main valve set, the fourth oil inlet and outlet is communicated with a rod cavity of the hydraulic oil cylinder, and the third oil inlet and outlet can be communicated with the fourth oil inlet and outlet. The logic valve is arranged in the valve body, and when oil is discharged from the first working oil port of the main valve group, return oil of a rod cavity of the hydraulic oil cylinder drives the logic valve to be opened, so that return oil enters a rodless cavity of the hydraulic oil cylinder through the logic valve.
本发明公开了一种工程机械车辆的液压系统及工程机械车辆，涉及工程机械车辆的液压控制技术领域。工程机械车辆的液压系统包括主泵、主阀组、差动阀组和液压油缸，差动阀组包括阀体和逻辑阀，阀体上设有第一进出油口、第二进出油口、第三进出油口和第四进出油口，第一进出油口与主阀组的第一工作油口连通，第二进出油口与液压油缸的无杆腔连通，第一进出油口和第二进出油口连通；第三进出油口与主阀组的第二工作油口连通，第四进出油口与液压油缸的有杆腔连通，第三进出油口能与第四进出油口连通。逻辑阀设于阀体内，主阀组的第一工作油口出油时，液压油缸的有杆腔的回油驱动逻辑阀开启，以使回油油液经逻辑阀进入液压油缸的无杆腔。
Hydraulic system of engineering machinery vehicle and engineering machinery vehicle
工程机械车辆的液压系统及工程机械车辆
CHI FENG (Autor:in) / YU ZHIWEI (Autor:in) / DONG LIDUI (Autor:in) / ZHANG JIANYONG (Autor:in) / JING YUTAO (Autor:in) / SUN ZHIYUAN (Autor:in)
07.07.2023
Patent
Elektronische Ressource
Chinesisch
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