Hydraulic control system of engineering machinery, control method and engineering machinery: Fid-Bau Portal

Hydraulic control system of engineering machinery, control method and engineering machinery

SHANG SHASHA / HONG KUNPENG / YE QITUAN

The invention provides a hydraulic control system of engineering machinery, a control method and the engineering machinery, and relates to the technical field of DPF regeneration of mechanical equipment. The hydraulic control system comprises an operation control oil path, a control oil path and a regeneration control oil path; the control oil path is connected with a driving control valve on a driving oil path of a corresponding hydraulic executing mechanism, the control oil path is connected with a switching valve, the switching valve is connected with the operation control oil path and theregeneration control oil path, and the switching valve can control the control oil path to communicate with one of the operation control oil path and the regeneration control oil path; and the operation control oil path is provided with an operation control valve, and the regeneration control oil path is provided with a regeneration control valve. According to the hydraulic control system, the hydraulic executing mechanism of the engineering machinery is used as a consuming load, and an auxiliary device does not need to be additionally arranged to increase the load, so that the cost is reduced.

本发明提供了一种工程机械的液压控制系统、控制方法及工程机械，涉及机械设备DPF再生的技术领域，包括操作控制油路、控制油路以及再生控制油路；控制油路与其对应的液压执行机构的驱动油路上的驱动控制阀连接，控制油路连接有切换阀，切换阀与操作控制油路和再生控制油路连接，且切换阀能够控制控制油路与操作控制油路和再生控制油路择一连通；操作控制油路上设置有操作控制阀，再生控制油路上设置有再生控制阀。本发明是工程机械自身的液压执行机构作为消耗负载，不需要额外增设辅助装置增加负载，降低了成本。

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