Magnetic suspension magnetic drive pump

Abstract

The utility model provides a magnetic suspension magnetic drive pump which comprises a connecting base, a driving cavity formed in the connecting base, a front cover arranged at the left end of the connecting base, a pump cavity formed in the front cover and communicated with the driving cavity, and a medium inlet formed in the front cover and communicated with the driving cavity. The medium inlet is formed in the front cover and communicated with the pump cavity, the medium inlet is used for enabling a medium to enter the pump cavity, a motor is not needed after the impeller assembly is suspended, the impeller assembly can rotate, and the structure is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic suspension magnetic pumps, in particular to a magnetic suspension magnetic pump. Background Art

[0002] A magnetic levitation magnetic pump disclosed in Chinese patent application number CN202022531063.3 includes a front cover, a front cover static magnet, an impeller front dynamic magnet, an impeller assembly, an impeller inner magnetic group, a rear cover outer magnetic group, a rear cover, an isolation seat, an isolation seat static magnet, an impeller rear dynamic magnet, a connecting seat, and a foot seat. A connecting seat is installed on the upper surface of the foot seat, a front cover is installed on the left end of the connecting seat, a drive motor is installed on the right end of the connecting seat, a pump cavity is opened in the connecting seat, a rear cover is provided in the pump cavity, and the right end of the rear cover is connected to The drive motor is connected, the inner wall of the rear cover is installed with a rear cover outer magnetic group, the rear cover is provided with an isolation seat, the left end of the isolation seat is fixedly installed on the front cover, the right part of the isolation seat is embedded with an isolation seat static magnet, the left end of the isolation seat static magnet is installed with an impeller rear moving magnet, the left end of the impeller rear moving magnet is installed with an impeller assembly, the right part of the impeller assembly is provided with an impeller inner magnetic group, the left end of the impeller assembly is installed with an impeller front moving magnet, the left end of the impeller front moving magnet is installed with a front cover static magnet, and the front cover static magnet is located between the front cover and the impeller front moving magnet.

[0003] Although the above patents can solve the corresponding technical problems, there are still certain defects in the use process:

[0004] After the impeller assembly is suspended, a motor is required to rotate the impeller assembly, and the structure is complex. Utility Model Content

[0005] The utility model aims to provide a magnetic suspension magnetic pump in view of the defects and shortcomings of the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A magnetic levitation magnetic pump,

[0008] Including connector,

[0009] A driving cavity, the driving cavity is formed inside the connecting seat;

[0010] A front cover, the front cover is arranged at the left end of the connecting seat;

[0011] A pump chamber, the pump chamber is formed inside the front cover and is connected to the drive chamber;

[0012] An inlet, the inlet is formed on the front cover and is connected to the pump chamber, and the inlet is used for the medium to enter the pump chamber;

[0013] an outlet medium pipe, the outlet medium pipe is arranged on the front cover and is connected to the pump chamber, and the outlet medium pipe is used to discharge the medium entering the pump chamber;

[0014] An impeller assembly, the impeller assembly is arranged on the front cover and located in the pump chamber, and the impeller assembly is used to transport the medium coming from the medium inlet to the medium outlet pipe;

[0015] A transport driving member is arranged between the front cover and the connecting seat, and is used to first suspend the impeller assembly after power is turned on, and then rotate the impeller assembly after suspension, so that the impeller assembly transports the medium coming from the medium inlet to the medium outlet pipe, and first stop the impeller assembly from rotating after power is turned off, and then reset the impeller assembly to be stationary after stopping rotating.

[0016] A further improvement is that the transport drive member includes a shell, which is arranged on the connecting seat and located in the drive cavity.

[0017] A connecting shaft, one end of which is disposed at the right end inside the housing, and the other end of which passes through the impeller assembly;

[0018] A bearing sleeve, the bearing sleeve is arranged outside the connecting shaft;

[0019] A magnetic capsule with a permanent magnet, the magnetic capsule is arranged between the bearing sleeve and the housing, and the magnetic capsule is fixedly connected to the impeller assembly;

[0020] A permanent magnet core with two sets of coils, the permanent magnet core is arranged on the connecting seat and located in the driving cavity;

[0021] After one set of coils on the permanent magnet core is energized, the permanent magnet core and the permanent magnet on the magnetic capsule generate a suspension magnetic field to suspend the impeller assembly. After the impeller assembly is suspended, the other set of coils on the permanent magnet core is energized again. After energization, the permanent magnet core and the permanent magnet on the magnetic capsule generate a rotating magnetic field to rotate the impeller assembly, so that the impeller assembly transports the medium coming from the inlet to the outlet pipe.

[0022] After the other set of coils on the permanent magnet core is powered off, the permanent magnets on the permanent magnet core and the magnetic capsule no longer generate a rotating magnetic field to stop the impeller assembly from rotating. After the impeller assembly stops rotating, one set of coils on the permanent magnet core is powered off again. After the power is off, the permanent magnets on the permanent magnet core and the magnetic capsule no longer generate a suspended magnetic field to reset the impeller assembly to a stationary state.

[0023] A further improvement is that: the transport drive member further comprises a connecting ring seat, one end of which is arranged at the left end of the housing, and the other end of which is arranged between the connecting seat and the front cover, and the connecting ring seat is used to limit the housing and prevent the medium in the pump chamber from entering the driving chamber;

[0024] A sealing ring is arranged between the other end of the connecting ring seat and the front cover, and is used to improve the sealing performance of the connection between the front cover and the connecting ring seat to prevent the medium in the pump chamber from entering the driving chamber through the connection between the front cover and the connecting ring seat and corroding the permanent magnet core, and to prevent the medium in the pump chamber from flowing out to the outside of the front cover through the connection between the front cover and the connecting ring seat.

[0025] A further improvement is that a limit ring is arranged at the right end of the interior of the shell and outside the connecting shaft.

[0026] A further improvement is that it also includes a limit damage prevention ring, which is arranged on the front cover and located in the pump chamber, and the limit damage prevention ring is located on the left side of the impeller assembly and outside the inlet. The limit damage prevention ring is used to prevent the impeller assembly from moving toward the inlet when the impeller assembly rotates to play a limiting role, and prevent direct friction between the impeller assembly and the front cover, which may cause wear of the impeller assembly.

[0027] A further improvement is that it also includes a heat sink, which is arranged on the connecting seat and is used to dissipate the heat generated by the coil of the permanent magnet core when the transport drive is energized.

[0028] A further improvement is that: the heat sink comprises a protective shell, which is arranged at the right end of the connecting seat and communicated with the driving cavity;

[0029] A fan, wherein the fan is disposed in the protective shell;

[0030] A plurality of flow holes are provided, and a plurality of the flow holes are penetrated and opened at the right end of the protective shell.

[0031] A further improvement is that: the heat sink also includes a plurality of heat sink fins, and the plurality of heat sink fins are arranged outside the connecting seat.

[0032] A further improvement is that it also includes a placement seat, which is arranged on the connecting seat and is used to place the magnetic levitation magnetic pump horizontally on the ground.

[0033] After adopting the above technical solution, the beneficial effect of the utility model is that after the impeller assembly is suspended, the impeller assembly can be rotated without using a motor, and the structure is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0035] Figure 1 It is a structural schematic diagram of the utility model;

[0036] Figure 2 It corresponds to Figure 1 sectional view of .

[0037] Explanation of the reference numerals: connecting seat 1, driving chamber 2, front cover 3, bolt 4, inlet flange 5, pump chamber 6, inlet port 7, outlet pipe 8, outlet flange 9, impeller assembly 10, limit damage prevention ring 11, placement seat 12, housing 13, connecting shaft 14, bearing sleeve 15, permanent magnet 16, magnetic capsule 17, permanent magnet core 18, connecting ring seat 19, sealing ring 20, limit ring 21, protective shell 22, fan 23, flow hole 24, cooling fins 25. DETAILED DESCRIPTION

[0038] The utility model is now further described in conjunction with the accompanying drawings and specific embodiments.

[0039] See also Figure 1 to Figure 2 As shown, the technical solution adopted in this specific implementation is:

[0040] A magnetic levitation magnetic pump,

[0041] Including connecting seat 1,

[0042] A driving cavity 2 is formed inside the connecting seat 1;

[0043] The front cover 3 is arranged at the left end of the connecting seat 1 by means of several bolts 4; an inlet flange 5 is arranged on the front cover 3, and the inlet flange 5 is used to be connected with the external inlet pipe flange.

[0044] A pump chamber 6 is formed inside the front cover 3 and communicated with the drive chamber 2;

[0045] An inlet 7 is formed on the front cover 3 and is connected to the pump chamber 6. The inlet 7 is used for the medium to enter the pump chamber 6.

[0046] The outlet medium pipe 8 is arranged on the front cover 3 and is connected to the pump chamber 6. The outlet medium pipe 8 is used to discharge the medium entering the pump chamber 6. The outlet medium pipe 8 is provided with an outlet flange 9, and the outlet flange 9 is used to be connected to the external outlet pipe flange.

[0047] The impeller assembly 10 is disposed on the front cover 3 and is located in the pump chamber 6. The impeller assembly 10 is used to transport the medium coming from the medium inlet 7 to the medium outlet pipe 8;

[0048] The transport driving member is arranged between the front cover 3 and the connecting seat 1. The transport driving member is used to suspend the impeller assembly 10 after power is turned on, and rotate the impeller assembly 10 after suspension, so that the impeller assembly 10 transports the medium coming from the medium inlet 7 to the medium outlet pipe 8, and stops the impeller assembly 10 from rotating after power is turned off, and resets the impeller assembly 10 to a stationary state after stopping rotating;

[0049] The pump assembly 10 further includes a limit damage prevention ring 11, which is arranged on the front cover 3 and located in the pump chamber 6. The limit damage prevention ring 11 is located on the left side of the impeller assembly 10 and outside the inlet 7. The limit damage prevention ring 11 is used to prevent the impeller assembly 10 from moving toward the inlet 7 when the impeller assembly 10 rotates, so as to play a limiting role and prevent the impeller assembly 10 from directly rubbing against the front cover 3, thereby causing the impeller assembly 10 to wear.

[0050] It also includes a placement seat 12, which is arranged on the connecting seat 1, and is used to place the magnetic suspension magnetic pump horizontally on the ground.

[0051] The transport drive member includes a housing 13, which is disposed on the connection seat 1 and located in the drive cavity 2.

[0052] A connecting shaft 14, one end of which is fixedly disposed at the right end of the housing 13, and the other end of which passes through the impeller assembly 10;

[0053] A bearing sleeve 15, wherein the bearing sleeve 15 is arranged outside the connecting shaft 14;

[0054] A magnetic capsule 17 with a permanent magnet 16, the magnetic capsule 17 is disposed between the bearing sleeve 15 and the housing 13, and the magnetic capsule 17 is fixedly connected to the impeller assembly 10;

[0055] The magnetic capsule 17 is fixedly connected to the bearing sleeve 15, and the bearing sleeve 15 is rotatably arranged outside the connecting shaft 14, and there is a gap between the magnetic capsule 17 and the housing 13;

[0056] A permanent magnet core 18 with two sets of coils, the permanent magnet core 18 is arranged on the connecting seat 1 and is located in the driving cavity 2;

[0057] After one set of coils on the permanent magnet core 18 is energized, the permanent magnet core 18 and the permanent magnet 16 on the magnetic capsule 17 generate a suspension magnetic field to suspend the impeller assembly 10. After the impeller assembly 10 is suspended, the other set of coils on the permanent magnet core 18 is energized again. After energization, the permanent magnet core 18 and the permanent magnet 16 on the magnetic capsule 17 generate a rotating magnetic field to rotate the impeller assembly 10, so that the impeller assembly 10 transports the medium coming from the inlet 7 to the outlet pipe 8.

[0058] After the other set of coils on the permanent magnet core 18 is powered off, the permanent magnet core 18 and the permanent magnet 16 on the magnetic capsule 17 no longer generate a rotating magnetic field to stop the impeller assembly 10 from rotating. After the impeller assembly 10 stops rotating, one set of coils on the permanent magnet core 18 is powered off again. After the power is off, the permanent magnet core 18 and the permanent magnet 16 on the magnetic capsule 17 no longer generate a suspension magnetic field to reset the impeller assembly 10 to a stationary state.

[0059] The transport drive member further includes a connecting ring seat 19, one end of which is disposed at the left end of the housing 13, and the other end of which is disposed between the connecting seat 1 and the front cover 3. The connecting ring seat 19 is used to limit the housing 13 and prevent the medium in the pump chamber 6 from entering the driving chamber 2.

[0060] The sealing ring 20 is arranged between the other end of the connecting ring seat 19 and the front cover 3. The sealing ring 20 is used to improve the sealing performance of the connection between the front cover 3 and the connecting ring seat 19 to prevent the medium in the pump chamber 6 from entering the drive chamber 2 through the connection between the front cover 3 and the connecting ring seat 19 and corroding the permanent magnet core 18, and to prevent the medium in the pump chamber 6 from flowing out to the outside of the front cover 3 through the connection between the front cover 3 and the connecting ring seat 19.

[0061] A limit ring 21 is disposed at the right end of the housing 13 and outside the connecting shaft 14 .

[0062] It also includes a heat sink, which is arranged on the connecting seat 1 and is used to dissipate the heat generated by the coil of the permanent magnet core 18 when the transport drive is powered on;

[0063] The heat sink includes a protective shell 22, which is disposed at the right end of the connecting seat 1 and communicated with the driving cavity 2;

[0064] A fan 23, the fan 23 is disposed in the protective shell 22;

[0065] A plurality of flow holes 24 are provided through the right end of the protective shell 22;

[0066] The heat sink also includes a plurality of heat sink fins 25 , and the plurality of heat sink fins 25 are disposed outside the connection base 1 .

[0067] The working principle of the utility model is as follows: the medium inlet is used for the medium to enter the pump cavity; the medium outlet is used for the medium entering the pump cavity to be discharged; the impeller assembly is used for transporting the medium entering from the medium inlet to the medium outlet; after one set of coils on the permanent magnet core is energized, the permanent magnet core and the permanent magnet on the magnetic capsule generate a suspension magnetic field to make the impeller assembly suspend, and after the impeller assembly is suspended, the other set of coils on the permanent magnet core is energized again, and after energization, the permanent magnet core and the permanent magnet on the magnetic capsule generate a rotating magnetic field to make the impeller assembly rotate, so that the impeller assembly transports the medium entering from the medium inlet to the medium outlet; and after the other set of coils on the permanent magnet core is powered off, the permanent magnet core and the permanent magnet on the magnetic capsule no longer generate a rotating magnetic field to stop the impeller assembly from rotating, and after the impeller assembly stops rotating, one set of coils on the permanent magnet core is powered off again, and after power off, the permanent magnet core and the permanent magnet on the magnetic capsule no longer generate a suspension magnetic field to reset the impeller assembly to a stationary state.

[0068] The contents not described in detail in the utility model specification belong to the prior art known to those skilled in the art. The utility model is to protect the structure of the product, and the model of each component is not the content of the utility model protection, which is also the prior art known to those skilled in the art. Any component on the market that can achieve the above functions of the utility model can be selected and applied.

[0069] The basic principles, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. A magnetic suspension magnetic pump, characterized in that: Including connector, A driving cavity, the driving cavity is formed inside the connecting seat; A front cover, the front cover is arranged at the left end of the connecting seat; A pump chamber, the pump chamber is formed inside the front cover and is connected to the drive chamber; An inlet is formed on the front cover and is connected to the pump chamber. The inlet is used for the medium to enter the pump chamber. an outlet medium pipe, the outlet medium pipe is arranged on the front cover and is connected to the pump chamber, and the outlet medium pipe is used to discharge the medium entering the pump chamber; An impeller assembly, the impeller assembly is arranged on the front cover and located in the pump chamber, and the impeller assembly is used to transport the medium coming from the medium inlet to the medium outlet pipe; A transport driving member is arranged between the front cover and the connecting seat, and is used to first suspend the impeller assembly after power is turned on, and then rotate the impeller assembly after suspension, so that the impeller assembly transports the medium coming from the medium inlet to the medium outlet pipe, and first stop the impeller assembly from rotating after power is turned off, and then reset the impeller assembly to be stationary after stopping rotating.

2. A magnetic suspension magnetic pump according to claim 1, characterized in that: The transport drive member includes a housing, which is disposed on the connecting seat and located in the drive cavity. A connecting shaft, one end of which is disposed at the right end inside the housing, and the other end of which passes through the impeller assembly; A bearing sleeve, the bearing sleeve is arranged outside the connecting shaft; A magnetic capsule with a permanent magnet, the magnetic capsule is arranged between the bearing sleeve and the housing, and the magnetic capsule is fixedly connected to the impeller assembly; A permanent magnet core with two sets of coils, the permanent magnet core is arranged on the connecting seat and located in the driving cavity; After one set of coils on the permanent magnet core is energized, the permanent magnet core and the permanent magnet on the magnetic capsule generate a suspension magnetic field to suspend the impeller assembly. After the impeller assembly is suspended, the other set of coils on the permanent magnet core is energized again. After energization, the permanent magnet core and the permanent magnet on the magnetic capsule generate a rotating magnetic field to rotate the impeller assembly, so that the impeller assembly transports the medium coming from the inlet to the outlet pipe. After the other set of coils on the permanent magnet core is powered off, the permanent magnets on the permanent magnet core and the magnetic capsule no longer generate a rotating magnetic field to stop the impeller assembly from rotating. After the impeller assembly stops rotating, one set of coils on the permanent magnet core is powered off again. After the power is off, the permanent magnets on the permanent magnet core and the magnetic capsule no longer generate a suspended magnetic field to reset the impeller assembly to a stationary state.

3. A magnetic levitation magnetic pump according to claim 2, characterized in that: The transport drive member further comprises a connecting ring seat, one end of which is arranged at the left end of the shell, and the other end of which is arranged between the connecting seat and the front cover, and the connecting ring seat is used to limit the shell and prevent the medium in the pump chamber from entering the driving chamber; A sealing ring is arranged between the other end of the connecting ring seat and the front cover, and is used to improve the sealing performance of the connection between the front cover and the connecting ring seat to prevent the medium in the pump chamber from entering the driving chamber through the connection between the front cover and the connecting ring seat and corroding the permanent magnet core, and to prevent the medium in the pump chamber from flowing out to the outside of the front cover through the connection between the front cover and the connecting ring seat.

4. A magnetic levitation magnetic pump according to claim 2, characterized in that: A limiting ring is arranged at the right end of the interior of the shell and outside the connecting shaft.

5. The magnetic suspension magnetic pump according to claim 1, characterized in that: It also includes a limit damage prevention ring, which is arranged on the front cover and located in the pump chamber. The limit damage prevention ring is located on the left side of the impeller assembly and outside the inlet. The limit damage prevention ring is used to prevent the impeller assembly from moving toward the inlet when the impeller assembly rotates to play a limiting role and prevent direct friction between the impeller assembly and the front cover, which may cause wear of the impeller assembly.

6. A magnetic levitation magnetic pump according to claim 2, characterized in that: It also includes a heat sink, which is arranged on the connecting seat and is used to dissipate the heat generated by the coil of the permanent magnet core when the transport drive is energized.

7. A magnetic suspension magnetic pump according to claim 6, characterized in that: The heat sink comprises a protective shell, which is arranged at the right end of the connecting seat and communicated with the driving cavity; A fan, wherein the fan is disposed in the protective shell; A plurality of flow holes are provided, and a plurality of the flow holes are penetrated and opened at the right end of the protective shell.

8. A magnetic levitation magnetic pump according to claim 7, characterized in that: The heat sink also includes a plurality of heat sink fins, and the plurality of heat sink fins are arranged outside the connection seat.

9. The magnetic suspension magnetic pump according to claim 1, characterized in that: It also includes a placement seat, which is arranged on the connecting seat and is used to place the magnetic suspension magnetic pump horizontally on the ground.

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