Vane pump

Abstract

The utility model relates to the technical field of fluid machinery, and discloses a vane pump which comprises a pump body, a transmission shell and a motor, the pump body and the motor are fixedly installed on the two sides of the transmission shell correspondingly, the pump body comprises a pump shell, a rotor, a coupler, a stator and vanes, the pump shell is fixedly connected with the outer side wall of the transmission shell, and the rotor is rotationally installed in the pump shell; the multiple blades are fixedly installed on the rotor and annularly distributed at equal intervals, one end of the rotor extends into the transmission shell, the coupler is fixedly installed at the end, located in the transmission shell, of the rotor, the stator is fixedly installed in the pump shell, and an output shaft of the motor extends into the transmission shell. A transmission part is arranged between the output shaft end of the motor and the coupler. The liquid conveying device has the following advantages and effects that liquid can be stably and efficiently conveyed, the flow direction and flow of the liquid are accurately controlled, the use requirement is met, stable and efficient power transmission can be ensured, and energy loss is reduced.

Description

Technical Field

[0001] This application relates to the field of fluid machinery technology, and in particular to a vane pump. Background Technology

[0002] In modern industry, the performance of liquid conveying equipment directly affects production efficiency and product quality. Vane pumps, with their stable flow rate and high efficiency, are widely used in many industries such as machinery manufacturing, petrochemicals, shipbuilding, and aerospace.

[0003] In related technologies, some traditional vane pumps have a single transmission method between the motor and rotor, which makes it difficult to flexibly adjust according to different working conditions, resulting in low power transmission efficiency and serious energy loss. During the liquid transportation process, some vane pumps have poor suction and discharge effects, and the liquid flow fluctuates greatly, which cannot meet the requirements for stable liquid flow and cannot provide stable and reliable support for industrial production.

[0004] Therefore, we propose a vane pump to solve the above problems. Utility Model Content

[0005] The purpose of this application is to provide a vane pump that can stably and efficiently transport liquids, accurately control the direction and flow rate of the liquid to meet usage requirements, and ensure stable and efficient power transmission while reducing energy loss.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution: a vane pump, including a pump body, a transmission housing, and a motor. The pump body and the motor are respectively fixedly installed on both sides of the transmission housing. The pump body includes a pump casing, a rotor, a coupling, a stator, and vanes. The pump casing is fixedly connected to the outer wall of the transmission housing. The rotor is rotatably installed inside the pump casing. The vanes are fixedly installed on the rotor. The number of vanes is set to multiple and they are distributed in an evenly spaced ring. One end of the rotor extends into the transmission housing. The coupling is fixedly installed at the end of the rotor located inside the transmission housing. The stator is fixedly installed inside the pump casing.

[0007] A further provision of this application is that the output shaft of the motor extends into the transmission housing, and a transmission component is provided between the output shaft end of the motor and the coupling.

[0008] A further feature of this application is that a suction port is fixedly installed on one side of the pump casing, and a discharge port is fixedly installed on the other side of the pump casing.

[0009] A further feature of this application is that an oil distribution plate is fixedly installed inside the pump casing.

[0010] A further feature of this application is that an assembly base plate is fixedly installed on the side of the pump casing away from the suction port.

[0011] A further feature of this application is that a mechanical shaft seal is fixedly installed on the side of the pump casing near the transmission housing, and one end of the rotor rotates through the mechanical shaft seal.

[0012] A further feature of this application is that: a mounting hole is provided on the side of the transmission housing near the motor, and a sealing ring is fixedly installed in the mounting hole; the output shaft of the motor is rotatably sealed with the mounting hole through the sealing ring.

[0013] This application includes at least one of the following beneficial technical effects:

[0014] 1. This application controls the operation of a motor by powering it on, and its output shaft is connected to a coupling via a gear drive or belt drive to transmit rotational power to the rotor in a stable and efficient manner. The transmission system can flexibly select the type of transmission component according to the actual working conditions to optimize power transmission efficiency and reduce energy loss.

[0015] 2. This application ensures that the vane pump can stably and efficiently transport liquids and accurately control the liquid flow direction and flow rate through the synergistic action of the rotor, coupling, stator, vanes and distribution plate.

[0016] 3. By setting a mechanical shaft seal, this application can effectively seal the gap between the pump casing and the rotor, prevent liquid leakage inside the pump casing, and ensure smooth and stable rotation of the rotor.

[0017] 4. By setting a sealing ring, this application can effectively prevent external impurities from entering the transmission housing, extend the service life of the transmission components inside the transmission housing, and improve its working reliability and stability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main view structure of this embodiment.

[0019] Figure 2 This is a schematic diagram of the main structure of the pump body.

[0020] Figure 3 This is a three-dimensional structural diagram of the pump body.

[0021] In the diagram, 1 is the pump body; 2 is the transmission housing; 3 is the motor; 11 is the pump casing; 12 is the rotor; 13 is the coupling; 14 is the suction port; 15 is the discharge port; 16 is the oil distribution plate; 17 is the assembly base plate; and 18 is the mechanical shaft seal. Detailed Implementation

[0022] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] See Figure 1 , Figure 2 and Figure 3 The vane pump provided in this application includes a pump body 1, a transmission housing 2, and a motor 3. The pump body 1 and the motor 3 are respectively fixedly installed on both sides of the transmission housing 2. The pump body 1 includes a pump casing 11, a rotor 12, a coupling 13, a stator, and vanes. The pump casing 11 is fixedly connected to the outer wall of the transmission housing 2. The rotor 12 is rotatably installed inside the pump casing 11, and the vanes are fixedly installed on the rotor 12. The number of vanes is set to multiple and arranged in an evenly spaced ring. One end of the rotor 12 extends into the transmission housing 2. The coupling 13 is fixedly installed at the end of the rotor 12 located inside the transmission housing 2. The stator is fixedly installed inside the pump casing 11. A suction port 14 is fixedly installed on one side of the pump casing 11, and a discharge port 15 is fixedly installed on the other side of the pump casing 11. The design of the suction port 14 and the discharge port 15 is compatible with the multiple vanes arranged in an evenly spaced ring on the rotor 12 inside the pump casing 11. It can achieve efficient liquid intake and discharge with stable flow, and can meet the liquid transportation needs under various working conditions. It should be noted that the stator is fixedly installed in the pump casing 11. Its internal contour curve determines the motion law of the blades during the working process. When the rotor 12 drives the blades to rotate, the blades slide along the inner surface of the stator under the action of centrifugal force and liquid pressure. The curved shape of the inner surface of the stator causes the blades to generate periodic extension and contraction motion during rotation. When the blades extend outward, the pump cavity volume in the pump casing 11 increases, creating a vacuum, and liquid is drawn in through the suction port 14. When the blades retract inward, the pump cavity volume in the pump casing 11 decreases, the liquid is squeezed and pressurized, and discharged through the discharge port 15. The presence of the stator provides the motion trajectory for the blades, ensuring that the vane pump can achieve a continuous and stable liquid intake and discharge process. It is a key component for energy conversion and liquid transportation of the vane pump.

[0024] In this embodiment, the output shaft of the motor 3 extends into the transmission housing 2. A transmission component is provided between the output shaft end of the motor 3 and the coupling 13. The transmission component can be any one of a gear transmission component or a belt transmission component. The rotor 12 is connected to the output shaft of the motor 3 via the coupling 13 and the transmission component, which can ensure efficient power transmission, stable transmission process, reduce energy loss, and improve the working efficiency of the vane pump.

[0025] In this embodiment, an oil distribution plate 16 is fixedly installed inside the pump casing 11. The design of the oil distribution plate enables the orderly suction and discharge of oil during the operation of the vane pump. It should be noted that the oil distribution plate 16 has oil distribution windows of a specific shape and position. When the rotor 12 drives the vanes to rotate inside the pump casing 11, the vanes slide close to the inner surface of the stator under the action of centrifugal force and pressure oil. At different stages of the rotor 12's rotation, the oil suction window of the oil distribution plate 16 is connected to the liquid suction port 14, so that the liquid can be smoothly sucked into the chamber inside the pump casing 11. The oil discharge window is connected to the liquid discharge port 15, so that the liquid after being squeezed and pressurized by the vanes is discharged, thereby ensuring that the vane pump can stably and efficiently complete the liquid delivery and accurately control the liquid flow direction and flow rate.

[0026] In this embodiment, an assembly base plate 17 is fixedly installed on the side of the pump casing 11 away from the suction port 14. The design of the assembly base plate 17 facilitates the disassembly, installation and maintenance of the entire vane pump, reduces maintenance difficulty and cost, and improves equipment maintenance efficiency.

[0027] In this embodiment, a mechanical shaft seal 18 is fixedly installed on the side of the pump housing 11 near the transmission housing 2. One end of the rotor 12 rotates through the mechanical shaft seal 18. The mechanical shaft seal 18 is designed to effectively seal the gap between the pump housing 11 and the rotor 12, prevent liquid leakage inside the pump housing 11, and ensure smooth and stable rotation of the rotor 12.

[0028] In this embodiment, the transmission housing 2 has a mounting hole on the side near the motor 3. A sealing ring is fixedly installed in the mounting hole. The output shaft of the motor 3 rotates and seals with the mounting hole through the sealing ring. The design of the sealing ring can ensure the rotational sealing cooperation between the output shaft of the motor 3 and the mounting hole, effectively preventing external impurities from entering the transmission housing 2, extending the service life of the transmission components inside the transmission housing 2, and improving its working reliability and stability.

[0029] With the above structure, when the vane pump provided in this application is in use, the control motor 3 is powered on and runs. The motor 3 serves as a power source, and its output shaft extends into the transmission housing 2. It is connected to the coupling 13 via a gear transmission component or a belt transmission component, so as to transmit the rotational power to the rotor 12 stably and efficiently. The transmission system can flexibly select the type of transmission component according to the actual working conditions in order to optimize the power transmission efficiency and reduce energy loss.

[0030] During the rotation of rotor 12 within pump casing 11, multiple equally spaced annularly distributed blades fixed on rotor 12 slide tightly against the inner surface of stator under the action of centrifugal force and liquid pressure. The unique contour curve inside the stator determines the movement trajectory of the blades, causing the blades to periodically extend and retract during rotor rotation. When the blades extend outward, the volume of the pump chamber within pump casing 11 increases, forming a partial vacuum. Under the action of pressure difference, liquid is drawn into the pump chamber through suction port 14. As the blades retract inward, the volume of the pump chamber within pump casing 11 decreases, the liquid is squeezed and pressurized, and discharged through outlet port 15, thus achieving continuous and stable liquid delivery.

[0031] During the liquid transport process, the oil distribution plate 16 plays a key role in oil distribution and regulation. Utilizing the oil distribution windows with specific shapes and positions on its surface, the liquid flow direction is precisely controlled according to the rotation stage of the rotor 12. During the blade suction stage, the oil suction window is connected to the suction port 14 to ensure smooth liquid intake. During the discharge stage, the oil discharge window is connected to the discharge port 15 to orderly discharge the pressurized liquid, thereby realizing the orderly switching of the oil suction and discharge processes and ensuring the stability and accuracy of liquid transport.

[0032] In terms of sealing and protection, the mechanical shaft seal 18 installed on the side of the pump casing 11 near the transmission housing 2 effectively seals the gap between the pump casing 11 and the rotor 12, preventing liquid leakage inside the pump and ensuring smooth rotation of the rotor 12. The sealing ring in the mounting hole of the transmission housing 2 realizes the rotational sealing cooperation between the output shaft of the motor 3 and the mounting hole, isolates external impurities from entering, protects the internal transmission components, extends the overall service life of the vane pump, and improves the reliability and stability of operation.

Claims

1. A vane pump characterized by, Including pump body (1), transmission shell (2) and motor (3), the pump body (1) and the motor (3) are fixedly installed on the both sides of the transmission shell (2) respectively, pump body (1) includes pump shell (11), rotor (12), shaft coupling (13), stator and blade, the pump shell (11) is fixedly connected with the outside wall of the transmission shell (2), the rotor (12) is rotatably installed in the pump shell (11), the blade is fixedly installed on the rotor (12), the number of the blade is set to multiple and is distributed in equidistant annular, one end of the rotor (12) extends to the transmission shell (2), the shaft coupling (13) is fixedly installed on the one end of rotor (12) in the transmission shell (2), the stator is fixedly installed in the pump shell (11).

2. A vane pump according to claim 1, characterized in that: The output shaft of the motor (3) extends to the transmission shell (2), and a transmission member is arranged between the output shaft end of the motor (3) and the shaft coupling (13).

3. A vane pump according to claim 1, characterized in that: One side of the pump shell (11) is fixedly installed with a liquid suction port (14), and the other side of the pump shell (11) is fixedly installed with a liquid outlet (15).

4. The vane pump of claim 1, wherein: The pump shell (11) is fixedly installed with an oil distribution disc (16) inside.

5. The vane pump of claim 1, wherein: The side of the pump shell (11) away from the liquid suction port (14) is fixedly installed with an assembly bottom plate (17).

6. The vane pump of claim 1, wherein: The side of the pump shell (11) close to the transmission shell (2) is fixedly installed with a mechanical shaft seal (18), and one end of the rotor (12) rotatably penetrates the mechanical shaft seal (18).

7. A vane pump according to claim 2, characterised in that: The side of the transmission shell (2) close to the motor (3) is provided with a mounting hole, a sealing ring is fixedly installed in the mounting hole, and the output shaft of the motor (3) is rotatably and sealingly connected with the mounting hole through the sealing ring.

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