Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Excavator boom cylinder control system and control method
The invention relates to the technical field of engineering machines, in particular to an excavator boom cylinder control system and control method. The excavator boom cylinder control system comprises a boom cylinder, a first control valve and a second control valve, the boom cylinder comprises a cylinder large cavity and a cylinder small cavity, an inlet of the first control valve communicates with the cylinder large cavity, the first control valve is provided with first unloading pressure, and used for carrying out overload protection on the cylinder large cavity, and maintaining pressure stability of the cylinder large cavity, an inlet of the second control valve communicates with the cylinder small cavity and used for carrying out overload protection on the cylinder small cavity and maintaining pressure stability of the cylinder small cavity, the second control valve is provided with an adjustable unloading pressure value, when hydraulic oil in the cylinder cavity flows back, thebackpressure value of a loop can be reduced, and energy waste can be reduced.
本发明涉及工程机械技术领域，尤其是涉及一种挖掘机动臂油缸控制系统及控制方法。挖掘机动臂油缸控制系统包括动臂油缸、第一控制阀和第二控制阀；动臂油缸包括油缸大腔和油缸小腔，第一控制阀的入口与油缸大腔连通，第一控制阀具有第一卸荷压力，用于对油缸大腔进行过载保护，维持油缸大腔的压力稳定；第二控制阀的入口与油缸小腔相连通，用于对油缸小腔进行过载保护，维持油缸小腔的压力稳定；第二控制阀具有可调节的卸荷压力值，从而能够在油缸小腔内的液压油回流时，降低其回路的背压值，减少能量的浪费。
Excavator boom cylinder control system and control method
The invention relates to the technical field of engineering machines, in particular to an excavator boom cylinder control system and control method. The excavator boom cylinder control system comprises a boom cylinder, a first control valve and a second control valve, the boom cylinder comprises a cylinder large cavity and a cylinder small cavity, an inlet of the first control valve communicates with the cylinder large cavity, the first control valve is provided with first unloading pressure, and used for carrying out overload protection on the cylinder large cavity, and maintaining pressure stability of the cylinder large cavity, an inlet of the second control valve communicates with the cylinder small cavity and used for carrying out overload protection on the cylinder small cavity and maintaining pressure stability of the cylinder small cavity, the second control valve is provided with an adjustable unloading pressure value, when hydraulic oil in the cylinder cavity flows back, thebackpressure value of a loop can be reduced, and energy waste can be reduced.
本发明涉及工程机械技术领域，尤其是涉及一种挖掘机动臂油缸控制系统及控制方法。挖掘机动臂油缸控制系统包括动臂油缸、第一控制阀和第二控制阀；动臂油缸包括油缸大腔和油缸小腔，第一控制阀的入口与油缸大腔连通，第一控制阀具有第一卸荷压力，用于对油缸大腔进行过载保护，维持油缸大腔的压力稳定；第二控制阀的入口与油缸小腔相连通，用于对油缸小腔进行过载保护，维持油缸小腔的压力稳定；第二控制阀具有可调节的卸荷压力值，从而能够在油缸小腔内的液压油回流时，降低其回路的背压值，减少能量的浪费。
Excavator boom cylinder control system and control method
挖掘机动臂油缸控制系统及控制方法
XU NA (Autor:in) / CHENG YIPENG (Autor:in) / YIN MANYI (Autor:in)
31.07.2020
Patent
Elektronische Ressource
Chinesisch
MANUFACTURING METHOD OF BOOM CYLINDER IN EXCAVATOR CLAMP
| Europäisches Patentamt | 2016