In hydraulic drilling machines, the main functions of the motor are:

Power supply: The motor converts mechanical energy into hydraulic energy, providing the necessary power support for the hydraulic system.

Drive hydraulic pump: The motor drives the hydraulic pump to operate, suck hydraulic oil from the oil tank and pressurize it and then transports it to actuators such as hydraulic motors and oil cylinders, thereby driving the drill rod and drill bit for drilling operations.