ATOS Hydraulic Components Atos Vane Pump PFE Series

ATOS Hydraulic Components Atos Vane Pump PFE Series

1. If the pump direction changes, its suction and discharge directions will also change. The vane pump has a specified direction and is not allowed to reverse. Because the rotor blade slots are inclined, the blades are chamfered, and the bottom of the blades is connected to the oil discharge chamber, the throttle slots and suction and discharge ports on the oil distribution plate are designed according to the predetermined direction. Reversible vane pumps must be specifically designed.

2. The oil distribution plate and stator of the vane pump should be correctly positioned with locating pins. The blades, rotor, and oil distribution plate should not be installed upside down. The suction area on the inner surface of the stator is most prone to wear. If necessary, it can be flipped and installed to turn the original suction area into a discharge area for continued use.

3. When disassembling, pay attention to the cleanliness of the working surface, and the oil should be filtered well during operation.

4. If the gap between the blades in the blade groove is too large, it will increase leakage, while if it is too small, the blades cannot expand and contract freely, which can lead to abnormal operation.

The axial clearance of the vane pump has a significant impact on η v. 1) Small pump -0.015~0.03mm2) Medium pump -0.02~0.045mm 6. The temperature and viscosity of the oil should generally not exceed 55 ℃, and the viscosity requirement is between 17~37mm2/s. If the viscosity is too high, it will be difficult to absorb oil; If the viscosity is too low, there will be severe leakage. As a pump product, vane pumps refer more to slide pumps. Almost all blade pumps refer to slide pumps.

1、 Working principle of single acting ATOS vane pump

The pump consists of rotor 1, stator 2, blades 3, oil distribution plate, and end cap. The inner surface of the stator is a cylindrical hole. There is eccentricity between the rotor and stator. The blades can slide flexibly in the slots of the rotor. Under the centrifugal force during rotor rotation and the pressure oil flowing into the root of the blades, the top of the blades is tightly attached to the inner surface of the stator, forming sealed working chambers between two adjacent blades, oil distribution plate, stator, and rotor. When the rotor rotates counterclockwise, the blades on the right side of the figure extend outward, and the volume of the sealed working chamber gradually increases, creating a vacuum. Therefore, oil is sucked in through the suction port 6 and the window on the oil distribution plate 5. And on the left side of the picture. The blades retract inward, and the volume of the sealing chamber gradually decreases. The oil in the sealing chamber is squeezed out through another window of the oil distribution plate and the pressure port 1 and output into the system. This type of pump is called a single acting pump because it absorbs oil and pressurizes oil once during each rotation of the rotor. The rotor is subjected to radial hydraulic unbalance force, so it is also known as an unbalanced pump, and its bearing load is relatively high. Changing the eccentricity between the stator and rotor can change the displacement of the pump, so these pumps are all variable displacement pumps.

2、 Working principle of double acting ATOS vane pump

Its working principle is similar to that of a single acting ATOS vane pump, with the only difference being that the stator surface is composed of eight parts: two long radius arcs, two short radius arcs, and four transition curves, and the stator and rotor are concentric. When the rotor rotates clockwise in the diagram, the volume of the sealed working chamber gradually increases at the upper left and lower right corners, which are the oil suction area, and gradually decreases at the lower left and upper right corners, which are the oil pressure area; There is a sealing area between the oil absorption area and the oil pressure area to separate them. This type of pump is called a double acting ATOS vane pump, as each sealed working chamber completes two oil suction and pressure actions per revolution of the rotor. The two suction zones and two pressure zones of the pump are radially symmetrical, and the hydraulic pressure acting on the rotor is radially balanced, so it is also known as a balanced ATOS vane pump.

The instantaneous flow rate of the double acting ATOS vane pump is pulsating, and the pulsation rate is small when the number of blades is a multiple of 4. Therefore, the number of blades for double acting ATOS vane pumps is generally set to 12 or 16.

　　ATOS Hydraulic Components Atos Vane Pump PFE SeriesIn addition to preventing dry running and overload, preventing air inhalation and excessive vacuum inhalation, the management points should also pay attention to:

1. If the pump direction changes, its suction and discharge direction will also change. ATOS vane pumps have a specified direction and are not allowed to reverse. Because the rotor blade slots are inclined, the blades are chamfered, and the bottom of the blades is connected to the oil discharge chamber, the throttle slots and suction and discharge ports on the oil distribution plate are designed according to the predetermined direction. Reversible ATOS vane pumps must be specifically designed. 2. The oil distribution plate and stator of the ATOS vane pump should be correctly positioned with locating pins. The blades, rotor, and oil distribution plate should not be installed upside down. The suction area on the inner surface of the stator is most prone to wear. If necessary, it can be flipped and installed to turn the original suction area into a discharge area for continued use. 3. When disassembling, pay attention to the cleanliness of the working surface, and the oil should be filtered well during operation. 4. If the gap between the blades in the blade groove is too large, it will increase leakage, while if it is too small, the blades cannot expand and contract freely, which can lead to abnormal operation. The axial clearance of ATOS vane pump has a significant impact on η v. 1) Small pump -0.015~0.03mm2) Medium pump -0.02~0.045mm 6. The temperature and viscosity of the oil should generally not exceed 55 ℃, and the viscosity requirement is between 17~37mm2/s. If the viscosity is too high, it will be difficult to absorb oil; If the viscosity is too low, there will be severe leakage. As a pump product, ATOS vane pump refers more to slide pumps. ATOS vane pumps are almost entirely referred to as slide pumps. PFG-210 Gear Pump PFG-210 Hydraulic Gear Pump PFG-210ATOS Atos Piston Pump Model:

PVPC-LZQZ-5073/1D/18

PVPC-C-3029/1D

PVPC-C-3029/1D 11 /WG

PVPC-C-4046/1D

PVPC-C-4046/1S

PVPC-C-5073/1D

PVPC-C-5073/1S 10

PVPC-CH-5073/1D-IX 24DC

PVPC-CZ-5073/1D 12

PVPC-LQZ-5073/1D 11

PVPC-LW-4046/1D 10

PVPC-LZQZ-3029/1DD