Hydraulic motor and pump

Can the hydraulic motor be used as a hydraulic pump?

Hydraulic motors and hydraulic pumps are not a type of hydraulic components. Hydraulic motors are equivalent to our hands and feet. They convert the energy generated by the human body into mechanical energy that moves other parts. The hydraulic pump is equivalent to our heart and produces food. The energy needed to convert energy into the heart is given to the whole body. That is, the energy conversion of the hydraulic motor and the hydraulic pump is reversed, but generally the hydraulic motor cannot be used as a pump.

Difference between hydraulic motor and hydraulic pump

1. The hydraulic motor is an energy output mechanism, so we usually want the hydraulic motor to have power, that is, the mechanical efficiency is high, and the hydraulic pump needs to have high volumetric efficiency in order to ensure self-suction.

Can the hydraulic motor be used as a hydraulic pump?

2. The hydraulic motor is bidirectionally rotated. In order to ensure bidirectional rotation, the internal components are usually symmetrical, and the hydraulic pump (such as gear pump, vane pump) usually rotates in one direction, and the direction of rotation cannot be changed arbitrarily.

3. The volumetric efficiency of hydraulic motors is much lower than that of hydraulic pumps.




4, the hydraulic pump speed is relatively high, and the hydraulic motor in the plunger motor, the gear motor is a high-speed motor, other such as cycloidal motor, radial piston motor, inner curve motor are low-speed motors, these low-speed motors can not be like The pump reaches the same high speed.

Similarities between hydraulic motor and hydraulic pump

There are many similarities between the hydraulic motor and the hydraulic pump.

1, are energy conversion devices, the reverse of the two conversion methods to ensure similarity.

2. Structurally similar.

3, are the use of changes in the seal cavity to achieve oil absorption and oil discharge.

Can the hydraulic motor be in the working condition of the pump for a short time?

Due to the similarity of the above three points, the hydraulic motor can be in the working condition of the pump in a short time. For example, when the vehicle stops on the slope, the vehicle may slide down due to the gravity of the vehicle, and the hydraulic motor is at the time. The working condition of the pump, this situation is no problem in a short time. In addition, when the four-wheel drive vehicle is walking at high speed, the four-wheel drive is converted into two-wheel drive to increase the speed. At this time, the driven hydraulic motor is also in the pump. The working condition, then the speed of the hydraulic motor must not be too fast, and there must be enough hydraulic oil to be added. Otherwise, the oil motor is dry and dry, and the damage is quick.

Shijiazhuang Hanjiu Technology Co.,Ltd
Director hanhan // E-mail: manager@sjzhjsm.com // Skype: Simon-Hanjiu Hydraulics // WhatsApp: +8618903213886 Website: http://www.hjhydraulic.com