A wind-water linkage control device and control method for a drilling rig

CN122345010APending Publication Date: 2026-07-07CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
Filing Date
2026-05-28
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Traditional wind and water linkage control devices cannot achieve remote automated control, resulting in improper selection of the drilling medium during the drilling process, affecting drilling safety and efficiency. Furthermore, they cannot be connected to the drilling rig's electro-hydraulic control system, making it difficult to respond to geological changes in real time.

Method used

Design a drilling rig air-water linkage control device, including a solenoid valve group, an air circuit valve group, a water circuit valve group and a linkage valve group. The device realizes automatic switching of media and flow control through an electronic control system. Combined with an electronic flow meter and an electric ball valve, it monitors drilling parameters in real time and automatically adjusts the media and air volume according to geological conditions.

Benefits of technology

It enables reliable switching of drilling media and precise flow control, improves drilling safety and efficiency, avoids gas ejection and cuttings failure, adapts to different geological conditions, and reduces the need for manual operation.

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Abstract

The present application belongs to the field of coal mine drilling machine, and discloses a drilling machine air-water linkage control device and control method, which comprises an upper box body and a lower box body; an electromagnetic valve group, an air path valve group, a water path valve group and a linkage valve group are arranged in the upper box body, and an electronic flowmeter and an electric ball valve are arranged in the lower box body; the linkage valve group has input ports connected with compressed air pipes, water pipes and negative pressure pipes respectively and an output port connected with an automatic drilling machine, and the electric ball valve is connected with the output port of the linkage valve group; the control method automatically judges hard rock or soft coal working conditions by real-time monitoring of the pushing pressure and the pushing speed, drives the linkage valve group to switch air, water or negative pressure medium, dynamically adjusts the air volume by the electric ball valve combined with the feedback of the orifice gas sensor, and the electronic flowmeter monitors the flow rate in real time. The present application realizes program control of medium switching and automatic control of output air volume, and improves the drilling efficiency.
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