Establishment of the Dynamics Modal for the Fire-suction Hydraulic Impactor

摘要

The drilling speed to shorten the drilling cycle plays a decisive role in drilling process. Using the fire-suction hydraulic impactor can achieve percussive-rotary drilling. The fire-suction hydraulic impactor can transform drilling fluid's pressure energy into mechanical energy. Withing bit static pressure, rotational cutting and vertical impact loading, the way of rock breaking will be faster and more efficient. Using Newton's second law to establish the corresponding kinetic equations, motion equations and displacement equations. The comparison between parameters and measured data validated the correctness of the formulas, which provides a theoretical basis for the products to improve and seriation.