Magnetic drive pump
By adopting a transverse inner and outer magnetic rotor structure and adjusting components in the magnetic pump, the problem of excessive transmission structure length was solved, resulting in a reduction in equipment size and cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-03-13
AI Technical Summary
The existing magnetic pump has a longitudinal magnetic flux structure, which results in a long transmission structure and is not conducive to reducing the size of the equipment.
It adopts a transverse inner magnetic rotor and transverse outer magnetic rotor structure. The motor is located on the side of the transverse outer magnetic rotor away from the transverse inner magnetic rotor. The transverse position of the motor is adjusted by adjusting the adjustment component to achieve transverse transmission and reduce the length of the transmission structure.
The transmission structure of the transverse inner and outer magnetic rotors reduces the size of the magnetic pump and lowers production costs.
Smart Images

Figure CN121663890A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of magnetic pump technology, and in particular to a magnetic pump. Background Technology
[0002] Magnetic pumps are power devices used for conveying power, mainly composed of several parts such as pump head, magnetic drive, motor, and connecting base plate. Currently, most magnetic drive pumps on the market have a longitudinal magnetic flux structure, resulting in a long transmission structure. This is not conducive to improving the magnetic flux conveying force per unit volume and reducing the size of the equipment. Summary of the Invention
[0003] The purpose of this invention is to provide a magnetic pump that can reduce the length of the transmission structure, thereby reducing the size of the equipment.
[0004] To achieve the above objectives, the present invention provides a magnetic pump, comprising: Base; Pump head, mounted on the base; An isolation sleeve is installed on the pump head; A transverse inner magnetic rotor is disposed within the isolation sleeve and connected to the input end of the pump head; A transverse outer magnetic rotor is disposed outside the isolation sleeve; and A motor is mounted on the base and located on the side of the outer transverse magnetic rotor away from the inner transverse magnetic rotor. The output end of the motor is connected to the outer transverse magnetic rotor. The axis of the motor, the axis of the outer transverse magnetic rotor, and the axis of the inner transverse magnetic rotor coincide. An adjusting element is mounted on the base and is used to adjust the lateral position of the motor.
[0005] In some embodiments, the pump head includes a pump body, a pump cover detachably mounted on one side of the pump body, and a rotor mounted inside the pump cover. The isolation sleeve is detachably connected to the side of the pump cover away from the pump body, and the input end of the rotor is connected to the transverse inner magnetic rotor.
[0006] In some embodiments, a locking nut and a coupling are also included, wherein the input end of the rotor is connected to the transverse inner magnetic rotor via the locking nut, and the output end of the motor is connected to the transverse outer magnetic rotor via the coupling.
[0007] In some embodiments, the pump head further includes a support member, and the pump cover is detachably connected to the base via the support member.
[0008] In some embodiments, the pump head further includes an adapter, a bushing, and a sliding bearing, the adapter being mounted on the pump cover, and the rotor being mounted on the pump cover via the bushing and the sliding bearing.
[0009] In some embodiments, the pump head further includes a touch panel and a temperature sensor. The touch panel is mounted on the outer wall of the pump cover, and the temperature sensor is located inside the pump cover. The touch panel is connected to the temperature sensor via the adapter.
[0010] In some embodiments, a distance and speed sensor is also included, which is installed on the isolation sleeve. The distance and speed sensor is used to measure the distance between the isolation sleeve and the transverse outer magnetic rotor, as well as the rotational speed of the transverse outer magnetic rotor. The distance and speed sensor is connected to the touch panel via the adapter.
[0011] In some embodiments, the transverse inner magnetic rotor includes a first iron core and a plurality of first permanent magnets, the plurality of first permanent magnets being uniformly arranged on the first iron core, and the transverse outer magnetic rotor includes a second iron core and a plurality of second permanent magnets, the plurality of second permanent magnets being uniformly arranged on the second iron core, the first permanent magnets and the second permanent magnets being arranged transversely.
[0012] In some embodiments, the adjusting member is provided in two and located on both sides of the motor. The adjusting member includes a first bolt, a stop block and a second bolt. The stop block is installed on the base by the first bolt, and one end of the second bolt is threaded through the stop block and abuts against the motor.
[0013] In some embodiments, a protective cover is also included, which is installed on the isolation sleeve and covers the outer periphery of the transverse outer magnetic rotor.
[0014] This invention provides a magnetic pump, which has the following advantages compared with the prior art: A pump head is mounted on the base, an isolation sleeve is mounted on the pump head, a transverse inner magnetic rotor is located inside the isolation sleeve and connected to the input end of the pump head, a transverse outer magnetic rotor is located outside the isolation sleeve, a motor is mounted on the base and located on the side of the transverse outer magnetic rotor away from the transverse inner magnetic rotor, the output end of the motor is connected to the transverse outer magnetic rotor, and the axes of the motor, the transverse outer magnetic rotor, and the transverse inner magnetic rotor coincide; and an adjusting component is mounted on the base for adjusting the transverse position of the motor. Thus, by using the transverse inner and outer magnetic rotors for transmission, the length of the transmission structure can be reduced, thereby reducing the size of the equipment. Attached Figure Description
[0015] Figure 1 This is a schematic cross-sectional view of the layout structure of a magnetic pump provided for some embodiments of the present invention.
[0016] Figure 2 This is an enlarged schematic diagram of the pump cover structure of a magnetic pump provided in some embodiments of the present invention.
[0017] Figure 3 This is an enlarged schematic diagram of the transverse inner magnetic rotor structure of a magnetic pump provided for some embodiments of the present invention.
[0018] Figure 4 This is an enlarged schematic diagram of the transverse external magnetic rotor structure of a magnetic pump provided for some embodiments of the present invention.
[0019] Figure 5 This is a side-view enlarged structural diagram of a transverse external magnetic rotor of a magnetic pump, provided for some embodiments of the present invention.
[0020] Figure 6 This is a partially enlarged structural diagram of the base of a magnetic pump provided in some embodiments of the present invention.
[0021] In the diagram: 1. Base; 2. Pump head; 3. Pump body; 4. Pump cover; 5. Rotor; 6. Support; 7. Adapter; 8. Bushing; 9. Sliding bearing; 10. Touch panel; 11. Temperature sensor; 12. Isolation sleeve; 13. Distance and speed sensor; 14. Horizontal inner magnetic rotor; 15. First iron core; 16. First permanent magnet; 17. Horizontal outer magnetic rotor; 18. Second iron core; 19. Second permanent magnet; 20. Motor; 11. Adjusting component; 12. First bolt; 13. Stop block; 14. Second bolt; 15. Locking nut; 16. Coupling; 17. Protective cover. Detailed Implementation
[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.
[0023] It should be understood that in the description of this application, the terms "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. That is, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Furthermore, unless otherwise stated, "a plurality of" means two or more.
[0024] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.
[0025] like Figure 1 As shown, the magnetic pump of some embodiments of the present invention includes a base 1, a pump head 2, an isolation sleeve 3, a transverse inner magnetic rotor 4, a transverse outer magnetic rotor 5, a motor 6, and an adjusting component 7.
[0026] Pump head 2 is mounted on base 1. Isolation sleeve 3 is mounted on pump head 2. Transverse inner magnetic rotor 4 is located inside isolation sleeve 3 and connected to the input end of pump head 2. Transverse outer magnetic rotor 5 is located outside isolation sleeve 3. Motor 6 is located on base 1 and on the side of transverse outer magnetic rotor 5 away from transverse inner magnetic rotor 4. The output end of motor 6 is connected to transverse outer magnetic rotor 5. The axis of motor 6, the axis of transverse outer magnetic rotor 5, and the axis of transverse inner magnetic rotor 4 coincide. Adjustment component 7 is mounted on base 1 and used to adjust the transverse position of motor 6.
[0027] During operation, the output of motor 6 drives the transverse outer magnetic rotor 5 to rotate. The rotating magnetic field of the transverse outer magnetic rotor 5 penetrates the non-magnetic isolation sleeve 3 and acts on the magnetic field of the transverse inner magnetic rotor 4. According to the principle of attraction between opposite poles, the N pole of the transverse outer magnetic rotor 5 attracts the S pole of the transverse inner magnetic rotor 4 and repels the N pole of the transverse inner magnetic rotor 4. The combination of magnetic attraction and repulsion forms torque, which forces the transverse inner magnetic rotor 4 to rotate synchronously with the transverse outer magnetic rotor 5, thereby driving the pump head 2 to work.
[0028] Based on the above structural setup, the transmission is achieved through the transverse inner magnetic rotor 4 and the transverse outer magnetic rotor 5. The transverse arrangement can shorten the length of the transverse inner magnetic rotor 4 and the transverse outer magnetic rotor 5, thereby reducing the volume of the electromagnetic pump and lowering production costs.
[0029] like Figure 1 As shown, in some embodiments, the pump head 2 includes a pump body 21, a pump cover 22 detachably mounted on one side of the pump body 21, and a rotor 23 mounted inside the pump cover 22. An isolation sleeve 3 is detachably connected to the side of the pump cover 22 away from the pump body 21. The input end of the rotor 23 is connected to a transverse inner magnetic rotor 4. Specifically, the rotor 23 includes a shaft and an impeller mounted on the shaft. The shaft is rotatably connected inside the pump cover 22, and the input end of the shaft is connected to the transverse inner magnetic rotor 4, thus enabling the transverse inner magnetic rotor 4 to drive the shaft to rotate.
[0030] like Figure 1As shown, in some embodiments, a locking nut 8 and a coupling 9 are also included. The input end of the rotor 23 is connected to the transverse inner magnetic rotor 4 via the locking nut 8, and the output end of the motor 6 is connected to the transverse outer magnetic rotor 5 via the coupling 9. Specifically, the input end of the shaft of the rotor 23 is threaded, and the input end of the shaft passes through the transverse inner magnetic rotor 4 and is fixed by the locking nut 8 to maintain the stability of the installation structure of the transverse inner magnetic rotor 4; while the coupling 9 is sleeved on the output shaft of the motor 6, the middle part of the coupling 9 is connected to the output shaft of the motor 6 by bolts, and one end of the outer periphery of the coupling 9 is connected to the transverse outer magnetic rotor 5 by bolts.
[0031] like Figure 1 As shown, in some embodiments, the pump head 2 further includes a support member 24, and the pump cover 22 is detachably connected to the base 1 via the support member 24. Specifically, the support member 24 is made of angle steel, the upper end of the support member 24 is connected to the pump head 2 by bolts, and the lower end of the support member 24 is connected to the base 1 by bolts.
[0032] like Figure 1 and Figure 2 As shown, in some embodiments, the pump head 2 further includes an adapter 25, a bushing 26, and a sliding bearing 27. The adapter 25 is mounted on the pump cover 22, and the rotor 23 is mounted on the pump cover 22 via the bushing 26 and the sliding bearing 27. Specifically, the shaft of the rotor 23 is mounted in the sliding bearing 27, the sliding bearing 27 is mounted in the bushing 26, and the bushing 26 is mounted inside the pump cover 22, thus maintaining the smooth rotation of the rotor 23.
[0033] like Figure 1 As shown, in some embodiments, the pump head 2 further includes a touch panel 28 and a temperature sensor 29. The touch panel 28 is mounted on the outer wall of the pump cover 22, and the temperature sensor 29 is located inside the pump cover 22. The touch panel 28 is connected to the temperature sensor 29 via an adapter 25. Specifically, there are multiple temperature sensors 29, which are mounted on the inner walls of the bushing 26 and the pump cover 22, for measuring the surface temperature of the bushing 26 and the temperature of the fluid inside the pump cover 22. The touch panel 28 is used to display the temperature values of the temperature sensors 29.
[0034] like Figure 1 As shown, in some embodiments, a distance and speed sensor 31 is also included, which is installed on the isolation sleeve 3. The distance and speed sensor 31 is used to measure the distance between the isolation sleeve 3 and the transverse outer magnetic rotor 5, as well as the rotational speed of the transverse outer magnetic rotor 5. The distance and speed sensor 31 is connected to the touch panel 28 via an adapter 25. Specifically, the distance and speed sensor 31 has both a speed sensor and a distance sensor, realizing distance and speed measurement functions.
[0035] like Figures 2-5As shown, in some embodiments, the transverse inner magnetic rotor 4 includes a first iron core 41 and a plurality of first permanent magnets 42, which are uniformly arranged on the first iron core 41. The transverse outer magnetic rotor 5 includes a second iron core 51 and a plurality of second permanent magnets 52, which are uniformly arranged on the second iron core 51. The first permanent magnets 42 and the second permanent magnets 52 are arranged transversely. Specifically, the first permanent magnets 42 are arranged in a ring array on the first iron core 41, and the second permanent magnets 52 are arranged in a ring array on the second iron core 51. In this way, the first permanent magnets 42 and the second permanent magnets 52 can be guaranteed to provide stable magnetic force and persistent magnetic flux.
[0036] like Figure 6 As shown, in some embodiments, there are two adjusting members 7 located on both sides of the motor 6. Each adjusting member 7 includes a first bolt 71, a stop 72, and a second bolt 73. The stop 72 is mounted to the base 1 via the first bolt 71, and one end of the second bolt 73 is threaded through the stop 72 and abuts against the motor 6. Thus, the stop 72 is fixed to the base 1 by the first bolt 71, and the lateral position of the motor 6 can be adjusted by tightening the second bolts 73 of the two adjusting members 7, thereby adjusting the distance between the isolation sleeve 3 and the lateral outer magnetic rotor 5. It should be noted that, to ensure the installation stability of the motor 6, the bottom of the motor 6 is mounted on the base 1 via a lateral slide rail.
[0037] like Figure 1 As shown, in some embodiments, a protective cover 10 is also included, which is installed on the isolation sleeve 3 and covers the outer periphery of the transverse outer magnetic rotor 5. Specifically, the protective cover 10 also covers the outer periphery of the coupling 9, and the protective cover 10 has an opening that allows the coupling 9 to pass through laterally, so as not to affect the rotation of the coupling 9.
[0038] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.
Claims
1. A magnetic pump, characterized in that, include: Base; Pump head, mounted on the base; An isolation sleeve is installed on the pump head; A transverse inner magnetic rotor is disposed within the isolation sleeve and connected to the input end of the pump head; A transverse outer magnetic rotor is located outside the isolation sleeve; as well as An electric motor is mounted on the base and located on the side of the transverse outer magnetic rotor away from the transverse inner magnetic rotor. The output end of the motor is connected to the transverse outer magnetic rotor, and the axis of the motor, the axis of the transverse outer magnetic rotor, and the axis of the transverse inner magnetic rotor coincide. as well as An adjusting element is mounted on the base and is used to adjust the lateral position of the motor.
2. The magnetic pump according to claim 1, characterized in that, The pump head includes a pump body, a pump cover detachably mounted on one side of the pump body, and a rotor mounted inside the pump cover. The isolation sleeve is detachably connected to the side of the pump cover away from the pump body, and the input end of the rotor is connected to the transverse inner magnetic rotor.
3. The magnetic pump according to claim 2, characterized in that, It also includes a locking nut and a coupling. The input end of the rotor is connected to the transverse inner magnetic rotor through the locking nut, and the output end of the motor is connected to the transverse outer magnetic rotor through the coupling.
4. The magnetic pump according to claim 2, characterized in that, The pump head also includes a support member, and the pump cover is detachably connected to the base via the support member.
5. The magnetic pump according to claim 2, characterized in that, The pump head also includes an adapter, a bushing, and a sliding bearing. The adapter is mounted on the pump cover, and the rotor is mounted on the pump cover via the bushing and the sliding bearing.
6. The magnetic pump according to claim 5, characterized in that, The pump head also includes a touch panel and a temperature sensor. The touch panel is installed on the outer wall of the pump cover, and the temperature sensor is located inside the pump cover. The touch panel is connected to the temperature sensor via the adapter.
7. The magnetic pump according to claim 6, characterized in that, It also includes a distance and speed sensor installed on the isolation sleeve, which is used to measure the distance between the isolation sleeve and the transverse outer magnetic rotor, as well as the rotational speed of the transverse outer magnetic rotor. The distance and speed sensor is connected to the touch panel via the adapter.
8. The magnetic pump according to claim 1, characterized in that, The transverse inner magnetic rotor includes a first iron core and a plurality of first permanent magnets, the plurality of first permanent magnets being evenly arranged on the first iron core. The transverse outer magnetic rotor includes a second iron core and a plurality of second permanent magnets, the plurality of second permanent magnets being evenly arranged on the second iron core. The first permanent magnets and the second permanent magnets are arranged transversely.
9. The magnetic pump according to claim 1, characterized in that, The adjusting component has two parts and is located on both sides of the motor. The adjusting component includes a first bolt, a stop block and a second bolt. The stop block is installed on the base by the first bolt, and one end of the second bolt is threaded through the stop block and abuts against the motor.
10. The magnetic pump according to any one of claims 1-9, characterized in that, It also includes a protective cover, which is installed on the isolation sleeve and covers the outer periphery of the transverse outer magnetic rotor.
Citation Information
Patent Citations
Magnetic drive pump with pump body and impeller formed through punching and welding
CN112483421A
Disc type magnetic shielding pump driven by permanent magnet synchronous motor of integrated controller
CN115149721A
High-temperature-resistant protective cover for magnetic drive pump
CN210565349U