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AssigneeXuzhou Xugong Foundation Construction Machinery Co., Ltd.
InventorsYonghua Zhang, Yu Sun, Zhigang Liu, Changmeng Shan, Hongchen Qiu, Xiafang Gao, Xing Gao, Junyun Shan, Qianbin Geng
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A main winch system of a rotary drilling rig includes a main action loop, a pilot control loop, and a feedback control loop. The main action loop includes an engine, a hydraulic pump, a main control valve, a balance valve, a main winch motor, and an oil tank. The pilot control loop includes a pilot handle, a solenoid valve I, a pressure relay, and the main control valve in the main action loop. The feedback control loop includes a solenoid valve II and the hydraulic pump and the main control valve in the main action loop. In response to a lifting action of the pilot handle for the main winch, under the control of a button, the solenoid valve II is energized continuously, and the solenoid valve I is energized and de-energized according to a given rule.
A main winch system of a rotary drilling rig, comprising a main action loop, a pilot control loop, and a feedback control loop, wherein the main action loop comprises an engine, a hydraulic pump, a main control valve, a balance valve, a main winch motor, and an oil tank;
A main winch system of a rotary drilling rig comprising a main action loop, a pilot control loop, and a feedback control loop, wherein the main action loop comprises an engine, a hydraulic pump, a main control valve, a balance valve, a main winch motor, and an oil tank;
A control method of a main winch system of a rotary drilling rig, the main which system including a main action loop, a pilot control loop, and a feedback control loop, wherein the main action loop comprises an engine, a hydraulic pump, a main control valve, a balance valve, a main winch motor, and an oil tank;
Dependencies are inferred from the claim text.