The main winch system of a rotary drilling rig is a crucial component. A malfunction in any part of the main winch system will render the small rotary drilling rig unusable. The main winch system of a small rotary drilling rig is used very frequently, so understanding its working principle and structure is essential for proper maintenance and repair. Below is an introduction to the main winch system of a rotary drilling rig.#the drilling machine#
#the drilling machine#Generally, the main winch system of a rotary drilling rig typically consists of a main winch motor, main winch, reducer, balance valve, relief valve, brake, solenoid valve, and pressure reducing valve. Its working principle is that the main winch motor drives the main winch through the reducer. The balance valve controls the lifting or lowering speed of the main winch, while the relief valve limits the pressure of the main winch motor to prevent overload. The brake is a normally closed brake; when the main winch needs to operate, pressurized oil is reduced in pressure by the pressure reducing valve before being supplied to the brake, facilitating brake engagement. The floating solenoid valve connects the inlet and outlet oil pipes of the main winch motor when the floating control handle is actuated, putting the main winch motor in a floating state. When the main winch is in a floating state, the floating solenoid valve allows pressurized oil to flow into the brake to release it. #the drilling machine#
