Network optimization information:

1、 The pump is an energy device, and the motor is an actuating element.

2、 The pump oil suction chamber is generally vacuum (to improve the oil suction capacity and cavitation resistance), the inlet size is generally larger than the outlet, and the pressure of the motor oil discharge chamber is slightly higher than the atmospheric pressure, without special requirements, the same size of feed inlet can be used for feeding.

3、 The structure of the pump must ensure the self-priming capacity, and there is no such requirement for the motor.

4、 The motor needs forward and reverse rotation (the internal structure requires symmetry), and the pump generally uses one-way rotation.

5、 The motor bearing structure and lubrication method must ensure that it can be used in a wide speed range. Although the pump speed is relatively high, it does not change much, so this is not required.

six Small cycloidal hydraulic motor The motor needs to overcome large static friction when starting, so BMV cycloidal hydraulic motor It is required that the starting torque is large, the torque ripple is small, and the internal friction is small (for example, the number of teeth of the gear motor cannot be less than that of the gear pump).

7. Pump - high volumetric efficiency is expected; Motor - high mechanical efficiency is expected.

8. The blades of vane pump are installed obliquely, while the blades of vane motor are installed radially (please consider forward and reverse rotation).

9. The blade of the vane motor is applied on the stator surface by the torsion spring at the root, while the blade of the vane pump is applied on the stator surface by the pressure oil and centrifugal force at the root.