Anti-deflection rock drilling control system

Abstract

The invention discloses an anti-deflection rock drilling control system. The system comprises a power mechanism, an actuating mechanism, control valves and an electrical system, wherein the power system comprises one-way pumps and motors, and the motors drive the one-way pumps to supply hydraulic oil to the system; the actuating mechanism comprises a push cylinder, a hydraulic motor and an impact mechanism; the control valves comprise three-position four-way electromagnetic exchange valves, a two-position three-way electromagnetic exchange valve, pilot overflow valves, one-way valves, a proportional throttle valve, a propelling pressure control valve, a propelling back pressure valve, filters and coolers. The electrical system comprises pressure sensors, signal amplifiers, a signal amplifier group, signal processors, a data acquisition card, an in-hole factor monitoring system, an in-hole factor and a deflection control system. The electrical system acquires a pressure signal and an in-hole factor signal, a hydraulic valve is regulated by the deflection control system to act on the push cylinder, the hydraulic motor and the impact mechanism, so that a rock drilling machine effectively adjusts the propelling pressure during rock drilling, and the condition of deflection during drilling is well prevented.

Description

technical field [0001] The invention relates to the field of hydraulic control, in particular to an anti-deflection rock drilling control system. Background technique [0002] Because rock drilling drilling and blasting technology is the main means of tunneling and mining, hydraulic rock drills as important equipment have been widely developed and used. However, in the impact rock drilling process of the rock drill, the force and moment of the rock drilling rod cause the deflection in the rock drilling process, thereby causing the blast hole to fail, and causing huge harm to the rock drilling process. In order to prevent the drilling deviation of rock drills, some researches have been carried out on the control of deviation control mainly affecting the propulsion force at home and abroad. However, these control systems are completely simple hydraulic valve control schemes, which are difficult to achieve the effect of preventing deviation control. Contents of the invention ...

AI Technical Summary

Problems solved by technology

However, during the impact drilling process of the rock drill, the force and moment of the rock drilling rod cause the deflection during the rock drilling process, which leads to the failure of the blast hole and causes great harm to the rock drilling process.

In order to prevent the drilling deviation of rock drills, some research has been carried out at home and abroad on the control of deviation control mainly affecting the propulsion force, but these control systems are completely simple hydraulic valve control schemes, which are difficult to achieve the effect of preventing deviation control

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