Rexroth AZPS series gear pump features:
-Nominal pressure 280 bar
-Using sliding bearings, suitable for heavy-duty applications
-The drive shaft meets ISO or SAE requirements
-Can realize the combination of multiple pumps
-Pipeline port: connecting flange
-Optimized the pressure pulsation, thus reducing the noise emission and vibration input source of the system
-Through the reinforced design of the shaft and the material of the pump cover, the service life is prolonged
-Realize continuous high quality through mass production
-A variety of configuration variants are available
Overview of Rexroth AZPS series gear pumps:
The important task of external gearing equipment is to convert mechanical energy (torque and speed) into hydraulic energy (flow and pressure); while external gear motors are
It's the opposite. These devices must have high efficiency to avoid unnecessary heat generation. This high efficiency is achieved through precision production processes
And pressure-sensitive gap sealing is achieved. Moreover, in this low-noise silent pump, this double-tooth principle helps to reduce the flow
The pulsation can be reduced by up to 75%.
The enclosed area of the displacement gear pair cooperates with the rotation of the drive shaft to form the flow characteristic curve (schematic) in the left figure.
In standard hydraulic pumps, each time a pair of gears mesh, there will be a pulsation on this characteristic curve-times. In the use of double tooth surface structure
Later, the flow pulsation of this silent pump was reduced by 75%, which correspondingly reduced the flow pulsation on the downstream system components to a new frequency.
Equal to twice the fundamental frequency. In this process, the gear pair presents a smaller back tooth backlash, thus providing a hydraulic seal.
There is the front tooth surface of the driven gear, but also the rear tooth surface. In this way, the front and rear tooth surfaces alternately produce fluid discharge. And chase
By adjusting the shape of the metering groove C ], the hydraulic line of action can be expanded to half of the standard hydraulic pump.
Litule AZPS series gear pump structure:
The internal sealing is achieved by compensating forces, which are proportional to the output pressure. Using this compensation method, you can ensure that the best
s efficiency. These bearings provide a sealing function for the gap (that is, the end between the gear teeth that transport high-pressure oil. Through the bearing bushing
Inputting the working pressure at the rear can control the sealing area between the gear teeth and the bearing. These special seals constitute the
boundary. For these radial gaps at the top of the gear teeth, sealing is achieved by pushing the gear to the internal force of the pump casing.
Precautions for Litule AZPS series gear pumps:
Most of the failure cases of external gear pumps are caused by contaminated hydraulic oil. In view of the fact that the warranty clause does not cover the wear caused by pollution
We recommend using a filtering method that meets the cleanliness level 20/18/15 ISO 4406 to reduce the size and concentration of the pollutants.
Contaminated to a certain permissible level:
Our recommendation: A full-flow oil filter should always be used. According to the requirements of ISO4406, the basic pollution of hydraulic oil shall not exceed the level
Past experience has shown that new fluids are often above this limit. In this case, a special oil filter should be used
The oil injection device of the device.
