Vane pump with skirt belt wheel

Abstract

The vane pump comprises a base, a damping structure, a pump body, a cooling structure, cooling liquid, a first heat dissipation structure, a filter screen, a flushing pipe and the belt wheel, the pump body is installed in a pump shell, the cooling structure for cooling the pump body is arranged between the pump body and the pump shell, and a liquid inlet pipe and a liquid outlet pipe are arranged on the two side edges of the pump body. The liquid inlet pipe is connected with the filter screen through four quick release structures, a flushing pipe is arranged in the liquid inlet pipe, an outlet of the cooling structure is detachably connected with the flushing pipe, cooling liquid in the cooling structure enters the flushing pipe to conduct back flushing on the filter screen, and a first heat dissipation structure for dissipating heat of the cooling structure and the pump body is arranged on the base. And a labyrinth sealing structure for preventing liquid leakage is arranged between the pump shell and the belt wheel. The cooling structure has the advantages that when the discharge port of the cooling structure is connected with the flushing pipe, cooling water in the cooling structure reversely flushes the filter screen, the workload of replacing the filter screen is reduced, and the heat dissipation effect is enhanced.

Description

Technical Field

[0001] This utility model relates to a vane pump with a skirted pulley, belonging to the field of vane pump technology. Background Technology

[0002] A vane pump is a pump in which vanes in the rotor slots contact the stator rings, forcing the sucked-in liquid from the inlet side to the outlet side. When the vane pump rotor rotates, the tips of the vanes, under the action of centrifugal force and pressurized oil, press tightly against the inner surface of the stator. In this way, the working volume formed by the two vanes, the rotor, and the inner surface of the stator first increases in volume to draw in oil and then decreases in volume to discharge oil. One rotation of the vanes completes one cycle of oil suction and discharge.

[0003] Existing vane pumps are connected to a pulley at one end, and the rotation of the pulley drives the pump's main shaft rotor to rotate, thus performing oil suction and discharge. However, most existing vane pumps have the following disadvantages:

[0004] 1. Poor sealing at the connection between the spindle rotor and the pulley can easily cause liquid leakage.

[0005] 2. When the vane pump is running at high pressure and high speed, the vanes and stator come into contact and rub against each other, which generates a lot of heat. Poor heat dissipation will lead to decreased efficiency, material aging, or even failure.

[0006] Therefore, a vane pump is needed that provides axial sealing at the connection between the main shaft rotor and the pulley and increases the heat dissipation effect of the vane pump.

[0007] Chinese Patent Application No. 201720719759.4 discloses a vane pump for automobiles, comprising a pump body and an oil inlet pipe. A main shaft is located in the middle of the pump body, and a rotating sleeve is mounted on the main shaft within the pump body. Vanes are mounted on the outer circumference of the rotating sleeve. An oil storage chamber is formed inside the pump body, and a viscosity detector is mounted on the inner wall of the oil storage chamber. A pulley is located at the other end of the main shaft, and an elastic retaining ring and a locking nut are located next to the pulley. The oil inlet pipe is located on one side of the outer wall of the pump body. A fixing plate is located below the pump body, and an oil outlet pipe with a solenoid valve is located on the lower side wall of the pump body. A rear cover is located at the rear of the pump body. The advantages are: it can automatically detect the viscosity of the hydraulic oil inside the vane pump, facilitating the control of the optimal replacement time, ensuring the normal operation of the vane pump, and reducing unnecessary financial consumption.

[0008] However, this application does not mention how to dissipate heat from the vane pump, or the issue of axial sealing to prevent leakage at the connection between the pump body and the pulley. Utility Model Content

[0009] The technical problem to be solved by this utility model is that liquid leakage is easy to occur at the connection between the main shaft rotor and the pulley, and when the vane pump is running at high pressure and high speed, the vane and the stator contact and rub against each other, which will generate a lot of heat and cause the device to age.

[0010] To address the aforementioned technical problems, a vane pump with a skirted pulley is proposed; this is achieved through the following technical solution:

[0011] The pump includes a pump body, a base, and a pulley. It also includes a cooling structure, coolant, a first heat dissipation structure, a filter screen, and a flushing pipe. The pump housing is connected to the upper surface of the base. The pump body is installed inside the pump housing. A cooling structure is provided between the pump body and the pump housing to cool the pump body. Inlet and outlet pipes are provided on both sides of the pump body. The inlet pipe is connected to the filter screen through four quick-release structures. A flushing pipe is provided inside the inlet pipe. The outlet of the cooling structure is detachably connected to the flushing pipe. The coolant in the cooling structure enters the flushing pipe to backwash the filter screen. A first heat dissipation structure is provided on the base to dissipate heat from the cooling structure and the pump body. The pump body passes through the pump housing and connects to the pulley. A labyrinth seal structure is provided between the pump housing and the pulley to prevent leakage.

[0012] The base vibration damping structure reduces noise generated by the vane pump due to vibration. The cooling structure is located between the pump casing and the pump body to absorb the heat generated by the pump body. At the same time, the first heat dissipation structure on the base dissipates heat to both the pump body and the cooling structure, resulting in dual cooling and improving the overall cooling effect of the device. A filter screen is installed on the inlet pipe to prevent large particles of impurities from entering the pump body and affecting its operation. When the outlet of the cooling structure is connected to the flushing pipe, the cooling water inside the cooling structure backwashes the filter screen, reducing the workload of replacing the filter screen. A labyrinth seal structure is installed between the pump casing and the pulley to reduce the amount of liquid leakage.

[0013] In a preferred embodiment of the present invention, a second heat dissipation structure for cooling the pump body is provided on the side of the pump casing away from the pulley. This structure includes a heat dissipation shroud, multiple heat dissipation fins, and a first fan. The multiple heat dissipation fins are uniformly welded to the side of the pump casing. The heat dissipation shroud is fixedly connected to the casing, forming an installation cavity between them. The pump body is connected to the first fan via a drive shaft. The first fan is located in the installation cavity and dissipates heat from the heat dissipation fins. The heat dissipation fins absorb heat from the pump body inside the pump casing, and the first fan dissipates heat from the heat dissipation fins.

[0014] In a preferred embodiment of the present invention, the base is connected to the pump casing via a shock-absorbing structure. The shock-absorbing structure includes four telescopic rods and a buffer spring. Each telescopic rod is fitted with a buffer spring. Two telescopic rods and springs connect the pump casing to the base, while the other two telescopic rods connect the second heat dissipation structure to the base, thereby reducing vibration and noise in the vane pump.

[0015] In a preferred embodiment of the present invention, the pump body includes a main shaft rotor, a stator, and blades. The main shaft rotor and the stator are eccentrically arranged inside the pump casing. The main shaft rotor is connected to multiple blades. Both ends of the main shaft rotor pass through the pump casing and are connected to pulleys and a first fan. The main shaft rotor simultaneously drives the first fan to rotate, thereby saving energy.

[0016] In a preferred embodiment of the present invention, the cooling structure includes a replenishment port, a cooling pipe, and a discharge port. The replenishment port is located on the surface of the pump casing, and the discharge port and the inlet pipe are located on the same side of the pump casing. The cooling pipe is wound around the outer surface of the stator. One end of the cooling pipe is connected to the replenishment port, and the other end is connected to the discharge port. Coolant is added from the replenishment port and enters the cooling pipe to absorb heat from the stator. The coolant is discharged from the discharge port.

[0017] In a preferred embodiment of the present invention, the quick-release structure includes an installation groove, a limiting groove, a handle, a limiting block, and a limiting spring. The inlet pipe is provided with an installation groove, and the limiting groove is provided on the side wall of the filter screen. The installation groove and the limiting groove are correspondingly provided. The limiting block is provided on the inner surface of the limiting groove. The handle passes through the installation groove and is fixedly connected to the limiting block. A limiting spring is provided between the limiting block and the side wall of the installation groove. By pulling the handle of the two symmetrical quick-release structures, the limiting block is pulled out of the limiting groove, and the filter screen can be rotated. By pulling the other two, the filter screen can be removed.

[0018] In a preferred embodiment of the present invention, the first heat dissipation structure includes a motor and a second fan. The motor is installed inside the base and drives the second fan to rotate to dissipate heat from the pump casing. This process dissipates heat from both the pump casing and the cooling structure simultaneously, thereby increasing the heat dissipation effect.

[0019] In a preferred embodiment of the present invention, a skirt-shaped metal ring is connected to the side of the pulley, and three concentric rings are arranged on the side wall of the pump casing corresponding to the position of the metal ring. The skirt-shaped metal ring and the three concentric rings form a tortuous fluid channel, forming a labyrinth seal structure, which reduces leakage.

[0020] In a preferred embodiment of the present invention, a liquid concentration detection device is installed inside the inlet pipe to prevent the liquid entering the vane pump from having excessively high impurity content due to damage to the filter screen.

[0021] The advantages of this utility model compared with the prior art are:

[0022] 1. The cooling structure is set between the pump casing and the pump body to absorb the heat generated by the pump body. At the same time, the first heat dissipation structure on the base dissipates heat to both the pump body and the cooling structure, resulting in dual cooling and improving the cooling effect of the entire device.

[0023] 2. The base vibration damping structure reduces the noise generated by the vane pump due to vibration;

[0024] 3. When the outlet of the cooling structure is connected to the flushing pipe, the cooling water inside the cooling structure will backwash the filter screen, reducing the workload of replacing the filter screen.

[0025] 4. The multiple concentric rings on the pump casing and the skirt-shaped metal ring on the pulley form a labyrinth seal structure, which reduces the amount of liquid leakage. Attached Figure Description

[0026] Figure 1 The figure shown is a three-dimensional structural diagram of a vane pump with a skirted pulley according to this utility model. Figure 1 ;

[0027] Figure 2 The figure shown is a three-dimensional structural diagram of a vane pump with a skirted pulley according to this utility model. Figure 2 ;

[0028] Figure 3 The figure shown is a cross-sectional view of a vane pump with a skirted pulley according to this utility model.

[0029] Figure 4 The image shown is a vane pump with a skirted pulley according to this utility model. Figure 3 Enlarged structural diagram of section A;

[0030] Figure 5 The figure shown is a schematic diagram of the base structure of a vane pump with a skirted pulley according to this utility model;

[0031] Figure 6 The diagram shows the internal structure of the pump casing of a vane pump with a skirted pulley according to this utility model. Figure 1 ;

[0032] Figure 7 The diagram shows the internal structure of the pump casing of a vane pump with a skirted pulley according to this utility model. Figure 2 ;

[0033] Figure 8 The diagram shown is a schematic diagram of the labyrinth seal structure of a vane pump with a skirted pulley according to this utility model.

[0034] Figure 9 The image shown is an enlarged view of the labyrinth seal structure of a vane pump with a skirted pulley according to this utility model.

[0035] Explanation of reference numerals in the attached drawings: 1. Base; 2. Shock-absorbing structure; 21. Telescopic rod; 22. Buffer spring; 3. Pump body; 31. Main shaft rotor; 32. Stator; 33. Blade; 4. Cooling structure; 41. Inlet; 42. Cooling pipe; 43. Outlet; 5. First heat dissipation structure; 51. Motor; 52. Second fan; 6. Filter screen; 7. Flushing pipe; 8. Pulley; 9. Pump casing; 10. Inlet pipe; 11. Outlet pipe; 12. Quick-release structure; 121. Mounting groove; 122. Limiting groove; 123. Handle; 124. Limiting block; 125. Limiting spring; 13. Labyrinth seal structure; 14. Second heat dissipation structure; 141. Heat dissipation shroud; 142. Heat dissipation fins; 143. First fan; 15. Skirt-shaped metal ring; 16. Concentric ring. Detailed Implementation

[0036] The following will refer to the appendix in the embodiments of this utility model. Figures 1-9 The technical solutions in the embodiments of this utility model will be described in detail below. Example

[0037] like Figure 1 , 2 As shown in Figure 3, a vane pump with a skirted pulley includes a base 1, a shock-absorbing structure 2, a pump casing 9, a pump body 3, a cooling structure 4, a coolant, a first heat dissipation structure 5, a second heat dissipation structure 14, a pulley 8, a flushing pipe 7, and a filter screen 6.

[0038] like Figure 1 and Figure 5 As shown, the base 1 is a rectangular metal base 1, and the base 1 is provided with a heat dissipation mounting cavity and four shock-absorbing mounting cavities, which facilitates the installation of the pump housing 9 and the first heat dissipation structure 5.

[0039] like Figure 1 and Figure 2 As shown, the pump casing 9 is a rectangular metal shell with multiple heat dissipation holes evenly arranged at the bottom. The pump body 3 is installed inside the pump casing 9, providing installation space for the pump body 3 and the cooling structure 4.

[0040] The pump body 3 is installed inside the pump casing 9. One end of the main shaft of the pump body 3 is connected to the pulley 8, and the other end is connected to the second heat dissipation structure 14. The pulley 8 drives the main shaft to rotate, thereby driving the pump body 3 to work. The second heat dissipation structure 14 dissipates heat from the pump body 3.

[0041] like Figure 3 and Figure 1 As shown, the cooling structure 4 is disposed between the pump body 3 and the pump casing 9, and is wrapped around the outer surface of the pump body 3 to increase the contact area between the cooling structure 4 and the pump body 3, thereby ensuring the cooling effect of the cooling structure 4.

[0042] The outlet 43 of the cooling structure 4 is connected to the flushing pipe 7. The coolant is transported from inside the cooling structure 4 to the flushing pipe 7 to backwash the filter screen 6, thereby reusing the coolant and cleaning the filter screen 6 at the same time, reducing the frequency of disassembly of the filter screen 6.

[0043] like Figure 5 As shown, the first heat dissipation structure 5 is installed in the heat dissipation mounting cavity of the base 1. While dissipating heat from the bottom of the pump housing 9, it also dissipates heat from the cooling structure 4 and the second heat dissipation structure 14 inside the pump housing 9 through the heat dissipation holes on the pump housing 9, thereby improving the overall heat dissipation efficiency of the pump.

[0044] The second heat dissipation structure 14 dissipates heat from the side of the pump casing 9 to the pump body and the pump casing 9, thereby improving the pump's heat dissipation efficiency.

[0045] The circular surface on the pulley 8 for mounting the belt is skirt-shaped to prevent the drive belt from slipping off. The side of the pulley 8 is provided with a skirt-shaped metal ring 15, which forms a labyrinth seal structure 13 with the side wall of the pump housing 9 to reduce the probability of liquid leakage.

[0046] The base 1 is equipped with a shock-absorbing structure 2 and a first heat dissipation structure 5. The base 1 is fixedly connected to the pump casing 9 through the shock-absorbing structure 2.

[0047] like Figure 5 As shown, the shock absorption structure 2 includes four telescopic rods 21 and a buffer spring 22. The four telescopic rods 21 are fixedly installed inside the shock absorption mounting cavity by screws and connecting plates. The buffer spring 22 is sleeved on the telescopic rods 21. The other end of the telescopic rods 21 is fixedly connected to the pump housing 9 by screws. It absorbs the vibration energy generated when the pump body 3 is working and reduces noise.

[0048] like Figure 5 As shown, the first heat dissipation structure 5 includes a motor 51 and a second fan 52. The motor 51 is fixedly installed inside the heat dissipation mounting cavity by screws. The motor 51 is connected to the second fan 52 to drive the second fan 52 to dissipate heat from the bottom of the pump housing 9. Multiple heat dissipation holes are provided on the bottom of the pump housing 9 to ensure that the first heat dissipation structure 5 can dissipate heat from the cooling structure 4 and the pump body 3 at the same time, thereby improving the heat dissipation effect of the entire blade 33 pump.

[0049] like Figure 6 As shown, the pump casing 9 is a metal shell, and the pump body 3 is installed inside. The pump body 3 includes a main shaft rotor 31, a stator 32, and blades 33. A shaft hole is provided on the side end cover of the pump casing 9. The main shaft rotor 31 passes through the shaft hole and connects to the pulley 8, which is fixed by a lock nut. The stator 32 is fixed inside the pump casing 9 by screws. The rotor and stator 32 are eccentrically arranged. The blades 33 are movably connected to the rotor to ensure that the blades 33 can slide freely. A thin layer of lubricating grease is applied to the root of the blades 33 to reduce initial wear.

[0050] The inlet pipe 10 and the outlet pipe 11 are welded to both sides of the pump casing 9, and pass through the pump casing 9 to connect to the stator 32.

[0051] like Figure 6 and Figure 8 As shown, three rings are welded to the outer side of the pump casing 9 where the pulley 8 is mounted. A skirt-shaped metal ring 15 is provided on the side of the pulley 8. The skirt-shaped metal ring 15 and the three concentric rings 16 form a tortuous fluid channel, forming a labyrinth seal structure 13. The three concentric rings 16 are inserted into the groove of the skirt-shaped metal ring 15 to form many tortuous fluid channels, thereby reducing leakage.

[0052] The labyrinth seal structure 13 is existing technology. The labyrinth seal structure 13 is now mostly used between rotating parts and stationary parts. There are many tortuous small chambers between the rotating parts and stationary parts to reduce leakage. The labyrinth seal structure 13 is also used to set several annular sealing teeth arranged in sequence around the rotating shaft. A series of intercepting gaps and expansion cavities are formed between the teeth. When the sealed medium passes through the gaps of the tortuous labyrinth, a throttling effect is generated to achieve the purpose of preventing leakage.

[0053] A cooling structure 4 is provided between the pump casing 9 and the pump body 3. The cooling structure 4 includes a filling port 41, a cooling pipe 42 and a discharge port 43. The filling port 41 is welded to the surface of the pump casing 9. When no coolant is added, a sealing cap is installed on the filling port 41 to prevent impurities from entering. When coolant is added, the coolant enters the cooling pipe 42 from the filling port 41 and is discharged from the discharge port 43.

[0054] When filter screen 6 needs rinsing, first let the coolant drain from outlet 43, observe whether there are impurities inside the coolant, and after confirming that the coolant can be used as rinsing fluid, connect outlet 43 to rinsing pipe 7 to backwash filter screen 6, reducing the number of times filter screen 6 needs to be disassembled and saving time.

[0055] The flushing pipe 7 is at a 30° angle to the horizontal plane to ensure that the coolant can flush the filter screen 6.

[0056] like Figure 3 and Figure 4 As shown, the filter screen 6 is connected to the inside of the liquid inlet pipe 10 through four quick-release structures 12. The quick-release structure 12 includes an installation groove 121, a limiting groove 122, a handle 123, a limiting block 124, and a limiting spring 125. The liquid inlet pipe 10 is provided with an installation groove 121, and the limiting groove 122 is provided on the side wall of the filter screen 6. The installation groove 121 and the limiting groove 122 are correspondingly provided and are equal in size. The limiting block 124 is provided on the inner surface of the limiting groove 122. The handle 123 passes through the installation groove 121 and is fixedly connected to the limiting block 124. A limiting spring 125 is provided between the limiting block 124 and the side wall of the installation groove 121.

[0057] A liquid concentration detection device is fixedly installed inside the inlet pipe 10 with screws to detect the concentration of the liquid after filtration by the filter screen 6. When the concentration is too high, it indicates that the filter screen 6 is damaged, reminding the operator to replace the filter screen 6 to prevent too many impurities from entering the pump body 3.

[0058] Pull the handles 123 of the two symmetrical quick-release structures 12 to pull the limiting block 124 out of the limiting groove 122 and into the mounting groove 121. The quick-release structure 12 opens. Rotate the filter screen 6 along the axis of the other two quick-release structures 12 to turn the filter screen 6 out of the liquid inlet pipe 10. Hold the filter screen 6 and then open the other quick-release structure 12 to disassemble the filter screen 6. It is convenient and quick.

[0059] like Figure 3 As shown, a second heat dissipation structure 14 for dissipating heat from the pump body 3 is provided on the side of the pump housing 9 away from the pulley 8, including a heat dissipation shroud 141, multiple heat dissipation fins 142 and a first fan 143.

[0060] The heat sink 141 is fixedly connected to the housing, forming an installation cavity between them. Multiple heat sink fins 142 are evenly welded to the side of the pump housing 9 to increase the heat dissipation area and dissipate the heat on the stator 32 and the pump housing 9.

[0061] The main shaft rotor 31 of the pump body 3 is fixedly connected to the drive shaft by screws. The drive shaft passes through the pump housing 9 and is connected to the first fan 143, so that the main shaft rotor 31 can drive the first fan 143 to rotate after being driven by the pulley 8, thus saving energy.

[0062] The first fan 143 is installed inside the mounting cavity to dissipate heat from the heat sink fins 142, the pump housing 9, and the pump body 3.

[0063] The working process of this embodiment:

[0064] Liquid enters the inlet, is filtered by the filter screen 6, enters the pump body 3 of the vane pump 33, and is then discharged through the outlet pipe 11. During the operation of the pump body 3, the heat generated by the friction between the vanes 33 and the stator 32 can cause equipment aging. Therefore, the first heat dissipation structure 5 and the second heat dissipation structure 14 are opened to dissipate heat from the pump body 3, and coolant is added to the cooling structure 4. At this time, the outlet 43 of the cooling structure 4 is connected to a coolant collection device. The first heat dissipation structure 5 can also dissipate heat from the cooling structure 4, ensuring the cooling efficiency of the cooling structure 4. These three structures work together to cool the pump body. The body 3 simultaneously achieves cooling, extending the service life of the vane pump 33. When the vane pump 33 is not working, the outlet 43 of the cooling structure 4 is connected to the flushing pipe 7 to reuse the coolant for backwashing the filter screen 6, reducing the frequency of filter screen 6 replacement and saving time. When the liquid concentration detection device inside the inlet pipe 10 detects that the liquid entering the pump body 3 has reached a certain concentration, it reminds the staff to replace the filter screen 6. The filter screen 6 is installed in the inlet pipe 10 through the quick-release structure 12. When disassembling, pull the handle 123 to rotate the filter screen 6 for easy disassembly and replacement by the staff.

[0065] The above embodiments are only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed by this utility model shall fall within the scope of protection of this utility model.

Claims

1. A vane pump with skirted wheels, comprising a pump body (3), a base (1) and a wheel (8), characterized in that: Also include cooling structure (4), cooling liquid, first heat dissipation structure (5), filter screen (6) and flush pipe (7), the upper surface of the base (1) is connected with the pump shell (9), the pump shell (9) is internally mounted pump body (3), the pump body (3) and the pump shell (9) between the cooling structure (4) for cooling the pump body (3) is arranged, the pump body (3) both sides are provided with liquid inlet pipe (10) and liquid outlet pipe (11), the liquid inlet pipe (10) is connected with the filter screen (6) through four quick release structure (12), the liquid inlet pipe (10) is internally provided with flush pipe (7), the discharge port (43) of the cooling structure (4) is detachably connected with the flush pipe (7), the cooling liquid in the cooling structure (4) enters the flush pipe (7) and carries out backflushing to the filter screen (6), the base (1) is provided with the first heat dissipation structure (5) for the cooling structure (4) and the pump body (3) heat dissipation, the pump body (3) passes through the pump shell (9) and connects the pulley (8), the pump shell (9) and the pulley (8) between the labyrinth seal structure (13) for preventing liquid leakage is arranged.

2. The skived vane pump of claim 1, wherein: The side of the pump shell (9) away from the pulley (8) is provided with the second heat dissipation structure (14) for cooling the pump body (3), comprising a plurality of heat dissipation fins (142) and first fan (143), a plurality of heat dissipation fins (142) are evenly welded on the side of the pump shell (9), the heat dissipation cover (141) is fixedly connected with the shell, and the mounting cavity is formed between the heat dissipation cover (141) and the shell. The pump body (3) is connected with the first fan (143) through a drive shaft, and the first fan (143) is arranged in the mounting cavity to dissipate heat for the heat dissipation fins (142).

3. The skived vane pump of claim 2, wherein: The base (1) is connected with the pump shell (9) through the damping structure (2), the damping structure (2) includes four telescopic rods (21) and buffer springs (22), each telescopic rod (21) is sleeved with a buffer spring (22), two telescopic rods (21) and springs are connected with the pump shell (9) and the base (1), and the other two telescopic rods (21) are connected with the second heat dissipation structure (14) and the base (1).

4. The skirned-roller vane pump of claim 1, wherein: The pump body (3) includes a main shaft rotor (31), a stator (32) and a blade (33), the main shaft rotor (31) and the stator (32) are eccentrically arranged in the pump shell (9), the main shaft rotor (31) is connected with a plurality of blades (33), and the main shaft rotor (31) passes through the pump shell (9) and is connected with the pulley (8) and the first fan (143) at both ends.

5. The skirned-roller vane pump of claim 3, wherein: The cooling structure (4) includes a supplement port (41), a cooling pipeline (42) and a discharge port (43), the supplement port (41) is arranged on the surface of the pump shell (9), the discharge port (43) and the liquid inlet pipe (10) are arranged on the same side of the pump shell (9), the cooling pipeline (42) is wound on the outer surface of the stator (32), one end of the cooling pipeline (42) is connected with the supplement port (41), and the other end is connected with the discharge port (43).

6. The skirned-roller vane pump of claim 1, wherein: The quick release structure (12) comprises a mounting groove (121), a limiting groove (122), a handle (123), a limiting block (124) and a limiting spring (125), the mounting groove (121) is arranged on the liquid inlet pipe (10), the limiting groove (122) is arranged on the sidewall of the filter screen (6), the mounting groove (121) is arranged in correspondence with the limiting groove (122), the limiting block (124) is arranged on the inner surface of the limiting groove (122), the handle (123) is fixedly connected with the limiting block (124) through the mounting groove (121), and the limiting spring (125) is arranged between the limiting block (124) and the sidewall of the mounting groove (121).

7. The skirned-roller vane pump of claim 1, wherein: The first heat dissipation structure (5) comprises a motor (51) and a second fan (52), the motor (51) is installed inside the base (1), and the motor (51) drives the second fan (52) to rotate to dissipate heat for the pump shell (9).

8. The skirned-roller vane pump of claim 1, wherein: The side edge of the belt wheel (8) is connected with a skirt-shaped metal ring (15), the sidewall of the pump shell (9) is provided with three concentric circular rings (16) at the position corresponding to the metal ring, the skirt-shaped metal ring (15) and the three concentric circular rings (16) form a zigzag fluid channel, and a labyrinth sealing structure (13) is formed.

9. The skirned-roller vane pump of claim 1, wherein: The liquid inlet pipe (10) is provided with a liquid concentration detection device.

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