How are the stator and rotor of a single acting vane pump mounted against each other? As the title s

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YB1 duplex quantitative vane pump is a medium and low pressure quantitative double-acting vane pump. The YB1 duplex fixed vane pump is rated at 63kg. The displacement is 4 100ml r, which can be selected by the user according to his needs.

It is an energy conversion device that converts the mechanical energy output of the motor into hydraulic energy, and acts as a hydraulic energy source to provide a certain flow pressure in the hydraulic system. The pump has compact structure, small size, uniform flow, low pressure pulsation, low noise, high efficiency, reliable performance and reasonable performance. YB1 duplex quantitative vane pump is an improved design of YB type, and the shape installation and connection dimensions are the same as YB type, which is the replacement product of China's medium pressure vane pump, and the shape installation and connection size are the same as YB type.

The stator, rotor, vane and distribution plate of the duplex pump are fastened into an assembly with screws, which is convenient for assembly and maintenance, and has an axial clearance compensation structure. See Satisfactory for specific parameters.

The single-acting vane pump is composed of main parts such as stator, rotor, vane and distribution distribution. The stator is made of wear-resistant material. The rotor is provided with blade slots, in which the blades are mounted and can be sliding.

The rotor and stator are arranged eccentrically with an eccentricity of e, and there are distribution plates on both sides that fit tightly. When the motor drives the rotor to rotate, the blades adhere to the inner surface of the stator by centrifugal force or spring force or hydraulic pressure. In this way, several sealing working volumes are formed between the stator, rotor, blades and distribution plate.

When the rotor rotates in the direction shown in the figure, the right blade gradually stretches outward, the sealing volume between the blades gradually increases, forming a local vacuum, and the oil is sucked in from the suction port of the pump through the suction window on the distribution plate (shown by the dotted line in the figure); On the left side of the rotor, the blades are forced to retract under the action of the stator, the sealing volume between the blades is gradually reduced, the oil is discharged from the drainage window on the distribution plate, and the rotor is rotated for one week, and each working volume completes a suction and drainage, so it is called a single-acting vane pump. The eccentricity e of a single-acting vane pump can be changed. The displacement of the pump can be changed by changing the size of E.

If the eccentricity changes, so does the direction of the pump's suction and discharge. In order to balance the pressure at both ends of the blades in the drainage area, so that they can slide smoothly from the rotor groove under the action of centrifugal force and adhere to the stator surface, the bottom of these blade grooves is usually communicated with the drainage cavity; The bottom of each blade groove located in the suction zone is connected to the suction cavity to avoid overpressing the ends of these blades with the stator, thereby reducing their wear. Single-acting vane pumps have low pressure on one side and high pressure on the other, and the pump shaft and bearings are subjected to large radial loads.

Therefore, single-acting vane pumps are also known as unbalanced vane pumps, which limits the increase in the operating pressure of single-acting vane pumps.

Physical explanation: the working principle and common faults of vane pumps.

No, if it coincides, this pump will not be able to suction and drain oil, then there will be no flow output.

The hidden state of the stator front of the electrical part of the integrated pump should coincide with the center of the rotor rotation, but the blade rotation center of the silver closed hall of the pump body does not coincide with the rotation center of the cavity.

There are two oil suction ports and two oil pressure ports, the rotor rotates for one week, the oil is suction and pressed twice, the stator and the rotor are installed concentrically, the stator is elliptical, non-variable, the pressure pulsation is small, and there is no radial force. There is only one oil suction port and one oil pressure port for single action, the rotor rotates for a week, the oil is suction and pressed once, the stator and the rotor are eccentricly installed, the stator is circular, variable, the size of the eccentricity determines the size of the variable, the pressure fluctuation is larger than the double action, and there is a radial force. View the original post

When the rotor of the vane pump rotates, the tip of the vane is attached to the inner surface of the stator under the action of centrifugal force and pressure oil. In this way, the working volume of the two blades and the inner surface of the rotor and stator is first absorbed from small to large, and then drained from large to small, and when the blades rotate for one week, the oil absorption and oil discharge are completed once.

First, the working principle of single-acting vane pump.

The pump is composed of parts such as rotor 1, stator 2, blade 3, oil distribution pan and end cover. The inner surface of the stator is a cylindrical hole. There is eccentricity between the rotor and stator.

The blade can slide flexibly in the groove of the rotor, and under the action of the centrifugal force when the rotor rotates and the pressure oil that enters the root of the blade, the top of the blade is attached to the inner surface of the stator, so that a sealed working cavity is formed between the two adjacent blades, the oil distribution plate, the stator and the rotor. When the rotor rotates in the counterclockwise direction, the blade on the right side of the figure stretches outward, and the volume of the sealing working chamber gradually increases, produces vacuum, and then the oil is sucked in through the upper window of the oil suction port 6 and the oil distribution plate 5. And on the left side of the figure.

The blade is indented inward, and the volume of the sealing chamber is gradually reduced, and the oil in the sealing chamber is pressed out and output to the system through another window of the oil distribution pan and the oil pressure port 1. This kind of pump sucks oil and presses oil once in the process of rotor rotation, so it is called a single-acting pump. The rotor is subjected to radial hydraulic unbalanced forces, so it is also called unbalanced pump, and its bearing load is large.

The displacement of the pump can be changed by changing the eccentricity between the stator and the rotor, so this kind of pump is a variable pump.

Second, the working principle of double-acting vane pump.

Its working principle is similar to that of a single-acting vane pump, except 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. Under the circumstance that the rotor rotates clockwise, the volume of the sealing working chamber gradually increases at the upper left corner and the lower right corner, which is the oil suction area, and gradually decreases at the lower left corner and the upper right corner, which is the oil pressure area; There is an oil sealing zone between the suction zone and the pressurized zone to separate them. The rotor of this pump rotates once and each sealed working chamber completes oil suction and oil pressure twice, so it is called a double-acting vane pump.

The two suction zones and the two pressurized zones of the pump are radially symmetrical, and the hydraulic force acting on the rotor is radially balanced, so it is also called a balanced vane pump.

The instantaneous flow rate of a double-acting vane pump is pulsating and the pulsation rate is small when the number of vanes is a multiple of 4. For this reason, the number of blades of a double-acting vane pump is generally 12 or 16.

The basic working principle of the hydraulic vane pump: the hydraulic vane pump is in accordance with the change of volume to achieve oil suction and oil discharge, so it is also called the volumetric hydraulic pump, by the outer circle of the rotor, two blades, the inner surface of the stator and the distribution plate on both sides to form a closed cavity, due to the change of the length and short diameter of the inner surface of the stator, the volume of the closed cavity is constantly changing when the rotor rotates, when the inner surface of the stator changes from the short radial to the long diameter, the closed cavity increases, and the vacuum formed sucks the oil through the oil suction port of the distribution plate to realize the oil absorption process; When the inner surface of the stator changes from long radial to short diameter, the closed cavity is reduced, and the high pressure formed by the compression of the blade discharges the oil through the oil drain port of the distribution plate to realize the oil pressing process.

Hydraulic vane pumps are divided into single-stage pumps, double-stage pumps, double-stage pumps and compound pumps according to the structure.

1.Single-stage pump: Consists of a set of pump body parts and a set of internal organs (cartridge assembly), with an inlet and an outlet, which can provide constant pressure and flow to a hydraulic system.

2.Duplex pump: consists of one set of pump body parts and two sets of different visceral parts (pump core assembly) connected in parallel, with one inlet and two oil outlets, which can provide different pressures and flow rates to one or two sets of hydraulic systems.

3.Two-stage pump: Composed of one set of pump body parts and two sets of identical internal organs (pump core assembly), there is an oil inlet and an oil outlet, which can multiply the pressure of the low-pressure pump, and can provide constant pressure and flow to a set of hydraulic system.

4.Compound pump: on the basis of single-stage pump, other valves are combined to form reverse self-locking, liquid flow transformation, constant pressure, stable flow and constant power.

The working principle of the vane pump is: through an elliptical pump body, the blades on the rotor can be retracted, under the action of centrifugal force, closely attached to the pump body to form a sealed oil cavity, through the large oil cavity inhalation, and then compressed to the small oil cavity to press out, repeated circulation to work.

Simple, easy-to-understand working principle of vane pumps.

Physical explanation: the working principle and common faults of vane pumps.

Vane pumps cannot be rotated forward or reversed. Because the installation angle of the blade is tilted forward along the direction of rotation of the rotor, usually 100 140. The purpose is to reduce the pressure angle of the blade and ensure that the blade can slide out of the blade groove smoothly to prevent the blade from being stuck or broken.

The single-acting vane pump is tilted backward along the rotor rotation direction, while the double-acting vane pump is tilted forward along the rotor rotation direction.

If the steering of the pump changes, the direction of its suction and discharge also changes, and the vane pump has a specified steering, which is not allowed to be reversed. Because the rotor blade groove is inclined and the blade is chamfered, the bottom of the blade is connected with the oil discharge cavity, and the throttle groove and suction and discharge port on the oil distribution plate are designed according to the established steering. Reversible vane pumps must be specifically designed.

It should be possible, as long as the position of the outlet and inlet is changed, the channel of the air flow is changed, and the steering of the rotor is also changed, which is the principle of the pneumatic wrench.

Theory is okay stupid people who don't understand this in engineering.

The structural parts of the vane pump are:

1. a rotor. 2. a blade.

3. Stator. 4. The left side of the oil pan is a letter.

5. The right side is equipped with a posture answering oil plate.

The "oil plate" is at the two ends of the "rotor", "stator" and "blade trace", and these five pieces together are called "pump core", which is the core component of the pump.