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Anti-deflection rock drilling control system

A control system and anti-deflection technology, applied in the field of hydraulic control, can solve problems such as blast hole failure, rock drilling process hazards, difficult to achieve deflection prevention control, etc., to avoid drilling deflection, sensitive response, and comprehensive reference control factors Effect

Active Publication Date: 2017-01-25
GUILIN UNIV OF AEROSPACE TECH
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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

Method used

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  • Anti-deflection rock drilling control system

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Embodiment Construction

[0018] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0019] As shown in accompanying drawing 1, an anti-deflection rock drilling control system of the present invention includes a power mechanism, an actuator, a control valve, and an electrical system; wherein:

[0020] The power mechanism includes a fuel tank, one-way pumps B1, B2 and motors M1, M2. The one-way pumps B1 and B2 are driven by the motors M1 and M2 to supply hydraulic oil to the system;

[0021] The control valve includes three-position four-way electromagnetic directional valve H1, H2, two-position three-way electromagnetic directional valve H3, pilot relief valve Y1, Y5, one-way valve D1, D3, proportional throttle valve J, propulsion pressure control Valve N1, propulsion back pressure valve N2, filters E1, E2, coolers L1, L2. Pilot-operated relief valves are respectively bypassed in the main oil circuit to limit the oil pressure of the main...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B11/17F15B21/08F15B13/02F15B19/00E21B1/26
CPCE21B1/00E21B1/02F15B11/17F15B13/02F15B19/00F15B21/08F15B2211/80
Inventor 刘忠杨能李天明邹爱成韩兴国
Owner GUILIN UNIV OF AEROSPACE TECH
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