Hydraulic motor and hydraulic pump similarities

1. In principle, hydraulic motors and hydraulic pumps are reversible, if driven by an electric motor, the output is pressure energy (pressure and flow), which is a hydraulic pump; If the input pressure oil, the output is mechanical energy (torque and speed), it becomes a hydraulic motor.

2. Structurally, they are similar.

3. The working principle of the hydraulic motor and hydraulic pump is to absorb and discharge oil by using the change of the working volume of the seal. For hydraulic pumps, when the working volume increases, the oil is absorbed, and when the working volume decreases, the high-pressure oil is discharged. For hydraulic motors, high pressure oil is entered when the working volume is increased, and low pressure oil is discharged when the working volume is reduced.

The difference between hydraulic motor and hydraulic pump

1. Hydraulic pump is a conversion device that converts the mechanical energy of the motor into hydraulic energy, outputs flow and pressure, and hopes that the volume efficiency is high; The hydraulic motor is a conversion device that converts the pressure energy of the liquid into mechanical energy, outputs torque and speed, and hopes that the mechanical efficiency is high. Therefore, the hydraulic pump is the energy device, and the hydraulic motor is the executive element.

2. The steering of the output shaft of the hydraulic motor must be able to turn forward and reverse, and the steering of hydraulic pumps such as gear pumps and vane pumps has clear provisions, and can only rotate one-way, not at will.

Hydraulic motor is an executive element that converts hydraulic energy into mechanical energy of continuous rotary motion.