Aiming at the problem of insufficient stability of crawler drill rigs during construction under complex geological conditions in underground coal mines, this paper designs an auxiliary stabilizing device based on mechanical-hydraulic coupling. Through structural innovation, mechanical analysis and engineering verification, the role of this device in enhancing the anti-overturning capacity of the drill rig and reducing drilling deviation has been clarified. The research shows that this device can effectively expand the adaptability range of the drill rig’s operating angle and significantly reduce the drilling trajectory deviation, providing technical support for efficient and safe underground drilling. Its research results have important practical value for projects such as gas extraction and water hazard prevention and control in deep coal mining.
Wu et al. (Mon,) studied this question.