Vickers is a world-renowned hydraulic brand owned by the Eaton Group Fluid Power Division. Its main products include Vickers Pumps, Vickers Piston Pumps, Vickers Vane Pumps, Vickers Hydraulic Pumps, Vickers Motors , Cylinder, Vickers hydraulic valve. Eaton's hydrodynamic products are widely used, including earthmoving machinery, agriculture, construction, aviation, mining, forestry, public facilities and material handling. Eaton is the world's leading manufacturer of diversified industrial products and enjoys a highly technologically advanced and reliable reputation in the global industrial sector. Has more than 125,000 employees in more than 125 countries on 6 continents. With annual sales of $ 9.8 billion. Products related to automotive, truck, heavy equipment, civil aviation, defense, military, residential, telecommunications and data transmission, industrial equipment and public facilities, business and government agencies, as well as sports and entertainment in various fields.
Vickers Zibo leaf pump is divided into two kinds: Vickers single vane pump, Vickers double vane pump
1, Vickers single vane pump
The pump consists of a rotor, a stator, a vane, an oil pan and an end cap. The inner surface of the stator is a cylindrical hole. There is an eccentricity between the rotor and the stator. The vane can be flexibly slid in the groove of the rotor, and the top of the vane is close to the inner surface of the stator under the action of the centrifugal force at the rotation of the rotor and the pressure of the root pressure of the vane, so that the two adjacent vanes, the oil pan, the stator and the rotor Between the formation of a sealed working chamber. When the rotor is rotated in the counterclockwise direction, the right side of the vane protrudes outward, sealing the working chamber volume gradually increases, resulting in a vacuum, so through the oil port and oil pan window oil inhalation. While on the left side of the figure. The vanes are indented and the volume of the sealed chamber is gradually reduced, and the oil in the sealed chamber is discharged into the system by pressing the other window and the oil port 1 into the system. This pump in the rotor turn a process, the oil suction oil each time, so called single acting pump. Rotor by radial hydraulic unbalance force, it is also known as non-balanced pump, the bearing load. Change the stator and the rotor between the amount of eccentricity, can change the displacement of the pump, so this pump is a variable pump.
2, Vickers double vane pump
Its principle of action is similar to that of single acting vane pump, except that the stator surface is composed of two sections of long radius arc, two short radii and four transition curves, and the stator and rotor are concentric The In the case where the rotor is rotated in the clockwise direction, the volume of the sealed working chamber gradually increases in the upper left and lower right corners, and the suction zone gradually decreases in the lower left and upper right corners, And there is a seal between the oil pressure area to separate them. The rotor of the pump every turn of each turn, each sealed working chamber to complete the oil and oil pressure action twice, so called double acting vane pump. The two suction zones of the pump and the two pressure zones are radially symmetrical and the radial pressure acting on the rotor is also known as the balanced vane pump.
The management of the vane pump points
The vane pump is a pump in which the vane in the rotor groove is in contact with the pump housing (stator ring) and the sucked liquid is pressed from the oil inlet side to the oil discharge side. Vane pump management points in addition to anti-dry and overload, anti-suction air and suction vacuum is too large, but also should pay attention to: pump steering change, the direction of its suction also change the vane pump has a specified steering, Because the rotor leaf groove is tilted, the vane has chamfer, the bottom of the vane and the oil discharge chamber, with the oil tank on the chute and suction, the mouth is set to turn the design.
Small pump -0.015 ~ 0.03mm medium-sized pump -0.02 ~ 0.045mm oil temperature and viscosity generally should not exceed 55 ℃, viscosity requirements between 17 ~ 37mm2 / s. Too much viscosity is difficult to absorb oil; viscosity is too small is a serious leakage. Reversible vane pumps must be specially designed.
Vane pump assembly: with the oil plate and stator positioning pin with the correct positioning of the vane, rotor, with oil pan are not installed, the stator part of the suction part of the most easy to wear, if necessary, it can be turned to install, so that the original inhalation area Into the discharge area and continue to use.
Vane pump disassembly
Pay attention to the work surface clean, work oil should be well filtered. Leaves in the leaf slot in the gap is too large will increase the leakage, too small leaves can not be free to expand, will lead to work disorders. The axial clearance of the vane pump has a great influence on ηv
Vickers vane pump commonly used models
V series single pump: V10, V20, V2010, V2020
VQ series: 20VQ, 25VQ, 35VQ, 45VQ
V series single pump: V10, V20, 25V, 35V, 45V
V series double pump: 2520V, 3520V, 3525V, 4520V, 4525V, 4535V
Vickers' s vane pump advantages
1, in a compact external dimensions to achieve high working pressure, to ensure high power and weight ratio and lower installation costs.
2, the child vane mechanism inherent low noise characteristics, improve the operator's comfort.
3, the vane system to ensure that the flow pulse amplitude is small, the system noise characteristics of low.
4, designed to prevent the internal induction of the shaft and bearing the radial load of the hydraulic balance to ensure long life.
5, by eliminating the biaxial extension of the motor or by reducing the number of motor and drive coupling, dual pump and through the shaft drive configuration to save installation location and cost.
6, through the shaft drive type to provide valuable loop design flexibility, such as in a single input driver to achieve quantitative and variable type.
7, the flow capacity and the ability to achieve high working pressure for your flow and pressure requirements of the entire range to provide the best choice and a single supply capacity.
8, the movement package structure to ensure rapid and efficient on-site maintenance. The movement is separate from the drive shaft, and it is easy to change the flow capacity and repair it without folding the pump from its stand.
Vickers vane pump advantage
Vickers vane pump is designed for low noise work and the development of high-pressure high-performance vane pump, the internal use of circular vanes to improve the stator and leaf life; stator with high-order no impact transition curve, the pressure and flow pulsation minimum , The noise is lower. It has the characteristics of reasonable structure, low ripple, low noise and high reliability.
Vickers vane pump with high volumetric efficiency, energy saving, simple control, flexible and so on.
Vickers vane pump is mainly used for injection molding machines, die-casting machinery, rubber machinery, plastic machinery and other machinery.