Iron roughneck main clamp spinner hydraulic loop, hydraulic control system and iron roughneck

The utility model provides an iron roughneck main tong spinner hydraulic loop, a hydraulic control system and an iron roughneck, and relates to the technical field of petroleum machinery, the iron roughneck main tong spinner hydraulic loop comprises a first hydraulic motor, a second hydraulic motor,...

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Bibliographische Detailangaben
Hauptverfasser:	HE BO, FAN DAOPING, ZHANG TAO, CHEN MINGKAI, CAO XIANLI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The utility model provides an iron roughneck main tong spinner hydraulic loop, a hydraulic control system and an iron roughneck, and relates to the technical field of petroleum machinery, the iron roughneck main tong spinner hydraulic loop comprises a first hydraulic motor, a second hydraulic motor, a series-parallel connection switching valve and a first positive and negative rotation switching valve, a first forward and reverse rotation switching valve and a series-parallel connection switching valve are arranged on an oil way where the first hydraulic motor and the second hydraulic motor are located, the first forward and reverse rotation switching valve is used for changing the flow direction of fluid passing through the first hydraulic motor and the second hydraulic motor, and the series-parallel connection switching valve is used for promoting the first hydraulic motor and the second hydraulic motor to be connected in parallel or in series. The working efficiency of the iron roughneck main clamp can be