Overflow control method and device of excavator and excavator and readable storage medium

Abstract

The invention provides an overflow control method and device of an excavator and the excavator and a readable storage medium. The overflow control method of the excavator comprises the steps of obtaining sensor data of a preset sensor of the excavator, and determining whether the excavator is in a motion state according to the sensor data; determining the excavator in a pressure-out state according to the engine speed of the excavator, and giving an alarm of the pressure-out state if the excavator is not in the motion state; determining whether the excavator is in an overflow state according to the system pressure of the excavator if the excavator is in the motion state; and reducing the main pump displacement of the excavator according to preset rules if the excavator is in the overflow state. According to the overflow control method of the excavator, the damage to a hydraulic system due to long-time opening of an overflow valve in the long pressure-out state can be effectively avoided, the operating level of a driver on the excavator is increased, and the power loss of the excavator is reduced.

Description

technical field [0001] The invention relates to the field of excavators, in particular to an excavator overflow control method and device, an excavator and a readable storage medium. Background technique [0002] Hydraulic excavator is an important construction and mining equipment, occupying an important position in construction machinery. During the working process of the current excavator, the overflow valve of the hydraulic system of the excavator often works in the open state due to the operation problem of the driver, and there is a large amount of energy wasted. The overflow state, or the hydraulic system is in a long-term pressure-holding state and the overflow valve is continuously opened, which is likely to cause damage to the hydraulic system. Especially in the case of complex working conditions, even experienced drivers can hardly ensure that the relief valve of the excavator is not opened during operation. [0003] If the overflow valve is opened during the wo...

AI Technical Summary

Problems solved by technology

During the working process of the current excavator, the overflow valve of the hydraulic system of the excavator often works in the open state due to the operation problem of the driver, and there is a large amount of energy wasted. The overflow state, or the hydraulic system is in a long-term pressure-holding state and the overflow valve is continuously opened, which is likely to cause damage to the hydraulic system

Especially in the case of complicated working conditions, it is difficult to ensure that the relief valve of the excavator will not be opened during operation, even for experienced drivers.

[0003] If the overflow valve is opened during the working process of the excavator, a large amount of power loss will be generated, and at the same time, the oil temperature of the hydraulic system will rise, and the viscosity of the hydraulic working medium will drop, which will lead to a series of failures such as increased wear of hydraulic components and increased leakage.

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