A Double Working Mode Excavator Hydraulic System

Abstract

The invention belongs to the technical field of engineering machinery, and specifically relates to a hydraulic system of an excavator with dual working modes, which includes a pilot control module, a main oil circuit control module and an execution module. The pilot control module includes a pilot pump, a manual pilot control valve group, The intelligent pilot control valve, the main oil circuit control module includes the main oil pump, the main control valve group, and the intelligent control valve. The hydraulic oil provided by the pilot pump reaches the intelligent control valve through the intelligent pilot control valve, and the intelligent control valve is located on the left side of the spool. At the same time, the hydraulic oil provided by the pilot pump reaches the switch valve through the intelligent pilot control valve, and the switch valve is in the lower working state of the spool moving up or the spool is down. In the upper working state of the shift, only one electrical signal can be input to realize the excavation action of the entire excavator, realizing the intelligent and unmanned excavation control of the excavator.

Description

technical field [0001] The invention belongs to the technical field of construction machinery, and in particular relates to an excavator hydraulic system with double working modes. Background technique [0002] The role of construction machinery in the development of modern society is self-evident, and excavators, as one of the most important equipment of construction machinery, play an irreplaceable role in various engineering fields. At the same time, with the development of the Internet and 5G technology in today's society, the era of intelligence is getting closer and closer to us, and it is also essential to realize the intelligent work of excavators and other construction machinery. [0003] The current excavator work is still dominated by manual operation, and the excavation action is completed through traditional mechanical handles and pedals. Such excavation action increases the labor intensity of the operator and also tests the physical strength of the operator. T...

AI Technical Summary

Problems solved by technology

[0003] The current excavator work is still dominated by manual operation, and the excavation action is completed through traditional mechanical handles and pedals. Such excavation action increases the labor intensity of the operator and also tests the physical strength of the operator. The operating environment of most excavators is harsh. For example, in mine blasting operations and demolition of dangerous buildings, the working environment of excavators has certain safety hazards. In addition, when performing repeated excavation work in a flat land environment, the driver is prone to physical fatigue. It also poses a safety hazard

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