Archive for February, 2017

Hydraulic motor and hydraulic pump the same point and different points

Hydraulic motor and hydraulic pump the same point
① In principle, the hydraulic motor and hydraulic pump is reversible, if driven by the motor, the output of the pressure energy (pressure and flow) This is the hydraulic pump; if the input pressure oil, the output of mechanical energy (torque and speed ), Becomes a hydraulic motor.

busbar bending machine

② from the structural point of view, the two are similar.
③ hydraulic motors and hydraulic pumps are the working principle of the work of the use of sealing changes in the volume of oil and oil discharge. For hydraulic pumps, the working volume increases when the oil absorption, reduce the volume of work when the discharge of high-pressure oil. For hydraulic motors, the working volume drilling sheet metal increases when entering the high-pressure oil, the working volume decreases when the discharge of low-pressure oil.
Hydraulic motors and hydraulic pumps of different points
① hydraulic pump is the motor mechanical energy into hydraulic energy conversion device, the output flow and pressure, the hope that the volume efficiency; hydraulic motor is the liquid pressure to mechanical energy conversion device, the output torque and speed, the hope that the mechanical efficiency high. Therefore, the hydraulic pump is the energy device, and the hydraulic motor is the actuator.
② hydraulic motor output shaft of the steering must be able to forward and reverse, and like gear pumps and vane pumps and other hydraulic pump steering has a clear requirement, only one-way rotation, can not be arbitrary.
Hydraulic motor is the hydraulic energy can be converted to continuous rotary motion mechanical energy of the actuator.
Hydraulic motors and hydraulic pumps have the same basic structural busbar bending machine elements – closed and can change the volume of the cycle and the corresponding oil distribution mechanism.
From the working principle, the hydraulic motor and hydraulic pump are relying on the work of the chamber volume changes, but the purpose of the use of the two different structures there are many differences, generally not directly reciprocal general, only a few pumps can be made Hydraulic motor.