Double hydraulic device and its speed control method, device and system

Abstract

The invention provides a dual hydraulic device and its speed control method, equipment and system. Wherein, the method includes: obtaining respective loads of the dual hydraulic devices; wherein, each hydraulic device in the dual hydraulic devices controls a set of actuators respectively; the load includes: a pressure value carried by each hydraulic device in the dual hydraulic devices; The respective loads of the dual hydraulic devices are compared with their respective preset load ranges; the operating speeds of the dual hydraulic devices are controlled according to the comparison results to match the operating speeds of the dual hydraulic devices. The present invention can effectively alleviate the problem of mismatching operation conditions of existing dual-pump control cylinder equipment or dual-pump control motor equipment and other dual-hydraulic equipment, thereby improving the working efficiency and quality of the equipment, and prolonging the use of related components in the equipment life.

Description

technical field [0001] The present invention relates to the field of engineering machinery, and more specifically, to a dual hydraulic device and a speed control method, device and system thereof. Background technique [0002] For construction machinery equipment with dual-pump control cylinder system or dual-pump control motor system, it is usually necessary to match the operating parameters of the hydraulic synchronous control device on it, for example, the underground diaphragm wall hydraulic double-wheel milling machine in the diaphragm wall construction process equipment, It is a typical double-pump equipment. During the groove forming operation, the output power of the engine is transmitted to the left and right milling wheels through the hydraulic pump-motor system, so as to realize the milling work. However, due to the characteristics of time-varying and sudden changes in the load on the milling wheel, it often occurs that the speed of the left and right milling whee...

AI Technical Summary

Problems solved by technology

However, due to the characteristics of time-varying and sudden changes in the load on the milling wheel, it often occurs that the speed of the left and right milling wheels does not match (such as idling, stalling, etc.); thus reducing the efficiency of the milling operation or causing damage The damage of the equipment may also cause the vertical deviation of the milling head of the slot milling machine, which directly affects the milling quality

[0003] No effective solution has been proposed for the problem of mismatching operation conditions of dual-hydraulic equipment such as dual-pump control cylinder equipment or dual-pump control motor equipment.

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