A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
MULTI-WAY VALVE, HYDRAULIC SYSTEM AND EXCAVATOR
Disclosed are a multi-way valve, a hydraulic system and an excavator. The multi-way valve comprises a first working unit, a second working unit and a third working unit. The first working unit comprises a travel valve group and a turning valve group. The second working unit comprises a boom group used for controlling a boom hydraulic cylinder and a bucket valve group used for controlling a bucket hydraulic cylinder. The third working unit comprises an arm valve group used for controlling an arm hydraulic cylinder and a standby valve group used for controlling a standby hydraulic cylinder. Under the condition that the size of the multi-way valve is not increased, all functions of the excavator including recycling return oil to other actuators during descending of booms of the excavator, guaranteeing the priority of arms in the case of compound actions, fulfilling overpressure-free independent regulation of bypass startup, crushing, and safety hoisting are realized, and low-power, high-efficiency and high-controllability work of the excavator is realized.
MULTI-WAY VALVE, HYDRAULIC SYSTEM AND EXCAVATOR
Disclosed are a multi-way valve, a hydraulic system and an excavator. The multi-way valve comprises a first working unit, a second working unit and a third working unit. The first working unit comprises a travel valve group and a turning valve group. The second working unit comprises a boom group used for controlling a boom hydraulic cylinder and a bucket valve group used for controlling a bucket hydraulic cylinder. The third working unit comprises an arm valve group used for controlling an arm hydraulic cylinder and a standby valve group used for controlling a standby hydraulic cylinder. Under the condition that the size of the multi-way valve is not increased, all functions of the excavator including recycling return oil to other actuators during descending of booms of the excavator, guaranteeing the priority of arms in the case of compound actions, fulfilling overpressure-free independent regulation of bypass startup, crushing, and safety hoisting are realized, and low-power, high-efficiency and high-controllability work of the excavator is realized.
MULTI-WAY VALVE, HYDRAULIC SYSTEM AND EXCAVATOR
HUANG FEI (author) / XIAO GANG (author) / CUI XIAO (author) / XU YANCUI (author) / LIU SHAOLONG (author)
2024-03-14
Patent
Electronic Resource
English
Excavator main valve, excavator hydraulic system and excavator
| European Patent Office | 2023