The invention provides a hydraulic control system and engineering machinery having the hydraulic control system. The hydraulic control system comprises a first main oil pump, a windlass motor and balance valve set, a first multi-way valve and an oil supplementing pump, wherein the windlass motor and balance valve set comprises a first oil port and a second oil port; the first multi-way valve comprises an oil inlet, a first working oil port and a second working oil port; an oil outlet of the first main oil pump is communicated with the oil inlet of the first multi-way valve; the first working oil port of the first multi-way valve is communicated with the first oil port; the second working oil port of the first multi-way valve is communicated with the second oil port; and an oil outlet of the oil supplementing pump and the oil inlet of the first multi-way valve are selectively communicated or separated through a first oil way. The hydraulic control system can accelerate the lifting speed of a main windlass driven by a windlass motor. When the hydraulic control system is applied to such engineering machinery as a dynamic compactor, as a main windlass is driven through the hydraulic control system realizing multi-pump converging, the lifting speed of the main windlass is accelerated, and the operation efficiency is improved.
Hydraulic control system and engineering machinery having hydraulic control system
12.08.2015
Patent
Elektronische Ressource
Englisch
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