Permanent magnet super-efficient submersible motor

Abstract

The permanent magnet super-efficient submersible motor comprises a submersible motor body, a rotor is movably installed in the submersible motor body, a stator is installed on the outer side of the rotor, a rotating shaft is fixedly installed on the top of the rotor, and a bearing seat is installed on the outer side of the rotating shaft; an upper supporting assembly is installed on the upper side in the submersible motor body, and a lower supporting assembly is installed on the lower side in the submersible motor body. According to the permanent magnet super-efficient submersible motor, a gear drives a rack to rotate, under driving of a driving column, a driving groove and a driving plate, four sets of supporting bases synchronously move towards the outer side, the four sets of supporting bases make contact with the inner wall of a tube well, and an upper supporting assembly and a lower supporting assembly work at the same time. When the submersible motor works, the submersible motor does not shake and does not collide with the inner wall of the tube well, the stability of the device during working is guaranteed, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of submersible motors, in particular to a permanent magnet super-high efficiency submersible motor. Background Art

[0002] Submersible electric pumps are mainly used to extract groundwater from deep wells. They can be used to supply and drain normal-temperature surface water and pressurized water to high-rise buildings in cities, rural areas, industrial and mining industries, and oil fields.

[0003] The existing submersible motor is a three-phase AC asynchronous motor. When the motor is working, it is connected to a three-phase AC power supply to generate a rotating magnetic field. The rotating magnetic field and the rotor conductor have a relative cutting motion, and the rotor conductor generates an induced electromotive force and an induced current. The current-carrying rotor conductor is acted upon by an electromagnetic force in the magnetic field, forming an electromagnetic torque to drive the rotor to rotate. The rotor speed is lower than the speed of the rotating magnetic field. Under rated conditions, the rotor speed is generally 2 to 5% lower than the speed of the stator rotating magnetic field.

[0004] The speed difference of this submersible motor reduces the working efficiency of the motor. At the same time, in order for the rotor to maintain the electromagnetic field, a large amount of power consumption is required, which increases the cost in use. From the perspective of equipment production, the motor core is long, the stator and rotor are easy to deform, and the iron loss is large, resulting in unstable equipment performance. At the same time, the long core leads to high equipment cost.

[0005] To solve the above problems, after searching, a Chinese patent with the authorization announcement number CN206640421U discloses a high-efficiency and energy-saving submersible motor; compared with the rotor of the existing submersible motor, the rotor in the article omits components such as short-circuit rings and guide bars, reduces the length and volume of the iron core, has low magnetic density and iron loss, has high power density, less heat, low motor temperature rise, and more reliable operation;

[0006] When the above-mentioned permanent magnet high-efficiency submersible motor is operating in a pipe well, it is easy for the submersible motor to collide with the pipe well when it is started, which will loosen the connection between the motor and other components and affect normal operation; increase wear between components and shorten equipment life; and easily cause faults such as poor circuit contact, affecting motor performance. Utility Model Content

[0007] The utility model aims to provide a permanent magnet ultra-high efficiency submersible motor to solve the defects mentioned in the above background technology.

[0008] To achieve the above object, a permanent magnet ultra-high efficiency submersible motor is provided, comprising a submersible motor body, a rotor is movably mounted inside the submersible motor body, a stator is mounted outside the rotor, a rotating shaft is fixedly mounted on the top of the rotor, and a bearing seat is mounted outside the rotating shaft;

[0009] An upper support assembly is installed on the inner upper side of the submersible motor body, and a lower support assembly is installed on the inner lower side of the submersible motor body; the upper support assembly includes a mounting seat fixedly mounted on the inner wall of the submersible motor body, and an mounting area is opened inside the mounting seat, and a drive plate is movably arranged inside the mounting area, and the end of the drive plate is fixedly connected to the support seat, a drive plate is movably mounted on the surface of the drive plate, a rack is screwed on the outer side of the drive plate, and the rack is meshed with the gear, and the rotating shaft of the gear is fixed to the output shaft of the micro motor fixed inside the submersible motor body.

[0010] Preferably, the mounting seat and the driving plate are both circular structures, and the axial sections of the mounting seat and the driving plate are concentric circle structures.

[0011] Preferably, four groups of receiving grooves are evenly opened on the outer side of the mounting seat, and support seats are installed inside the four groups of receiving grooves. At the same time, rubber seats are arranged on the surfaces of the four groups of support seats, and drive plates are installed on the inner walls of the four groups of support seats.

[0012] Preferably, driving columns are fixedly arranged at the ends of the four groups of driving plates, and the driving columns are adapted to the size of the driving slots. At the same time, the driving columns are inserted into the inside of the driving slots, and four groups of driving slots are arranged evenly on the surface of the driving plates.

[0013] Preferably, the driving groove is inclined, and the inclination angle of the driving groove is 30°. At the same time, a guide groove is provided on one side of the driving groove, and the guide groove is arc-shaped.

[0014] Preferably, the guide grooves are arranged in four groups evenly distributed on the surface of the driving plate, and guide posts are inserted into the guide grooves, and the four groups of guide posts are evenly fixed to the upper side of the interior of the installation area.

[0015] Compared with the prior art, the beneficial effects of the utility model are: the gear drives the rack to rotate, and driven by the driving column, the driving groove and the driving plate, the four groups of support seats move synchronously outward, the four groups of support seats are in contact with the inner wall of the pipe well, the upper support assembly and the lower support assembly work at the same time, and the device is fixed inside the pipe well. When the submersible motor is working, it will not shake and will not hit the inner wall of the pipe well, thereby ensuring the stability of the device during operation and improving the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the support assembly of the utility model;

[0018] Figure 3 The utility model structure Figure 2 A schematic cross-sectional structure diagram of ;

[0019] Figure 4 It is a schematic diagram of the structural drive sheet of the utility model.

[0020] Numbers in the figure: 1. submersible motor body; 11. rotor; 12. stator; 13. bearing seat; 14. rotating shaft; 2. upper support assembly; 21. mounting seat; 22. mounting area; 23. support seat; 24. drive plate; 25. drive column; 26. drive sheet; 261. drive groove; 262. guide groove; 263. guide column; 264. rack; 265. gear; 3. lower support assembly. DETAILED DESCRIPTION

[0021] See also Figure 1-4 The utility model provides a permanent magnet ultra-high efficiency submersible motor, comprising a submersible motor body 1, a rotor 11 is movably mounted inside the submersible motor body 1, a stator 12 is mounted outside the rotor 11, a rotating shaft 14 is fixedly mounted on the top of the rotor 11, and a bearing seat 13 is mounted outside the rotating shaft 14;

[0022] An upper support assembly 2 is installed on the upper side of the interior of the submersible motor body 1, and a lower support assembly 3 is installed on the lower side of the interior of the submersible motor body 1; the upper support assembly 2 includes a mounting seat 21 fixedly mounted on the inner wall of the submersible motor body 1, and a mounting area 22 is opened inside the mounting seat 21, and a drive plate 24 is movably arranged inside the mounting area 22, and the end of the drive plate 24 is fixedly connected to the support seat 23, a drive plate 26 is movably mounted on the surface of the drive plate 24, and a rack 264 is screwed and fixed on the outer side of the drive plate 26, and the rack 264 is meshed with a gear 265, and the rotating shaft of the gear 265 is fixed to the output shaft of the micro motor fixed inside the submersible motor body 1.

[0023] Working principle: When in use, the submersible motor body 1 is placed in the pipe well by a lifting rope for use. When the submersible motor body 1 is placed at the target position inside the pipe well, the switch of the micro motor is started by the switch at the end of the cable of the submersible motor body 1. At this time, the gear 265 drives the rack 264 to rotate, and driven by the driving column 25, the driving groove 261 and the driving plate 24, the four groups of support seats 23 move synchronously outward, and the four groups of support seats 23 contact the inner wall of the pipe well. The upper support assembly 2 and the lower support assembly 3 work at the same time, and the device is fixed inside the pipe well. When the submersible motor is working, it will not shake or hit the inner wall of the pipe well, thereby ensuring the stability of the device during operation and improving the service life of the device.

[0024] As a preferred embodiment, the mounting seat 21 and the driving plate 26 are both circular structures, and the axial sections of the mounting seat 21 and the driving plate 26 are concentric circle structures.

[0025] Four groups of receiving grooves are evenly arranged on the outer side of the mounting seat 21, and the insides of the four groups of receiving grooves are all installed with support seats 23. At the same time, rubber seats are arranged on the surfaces of the four groups of support seats 23, and driving plates 24 are installed on the inner walls of the four groups of support seats 23.

[0026] like Figure 1-4 As shown: support seats 23 are installed inside the four groups of receiving grooves; the four groups of support seats 23 move outward synchronously to support and fix the inner wall of the pipe well.

[0027] As a preferred embodiment, driving columns 25 are fixedly arranged at the ends of the four groups of driving plates 24, and the driving columns 25 are adapted to the size of the driving grooves 261. At the same time, the driving columns 25 are inserted into the inside of the driving grooves 261, and four groups of driving grooves 261 are evenly opened on the surface of the driving plate 26.

[0028] like Figure 1-4 As shown, the driving groove 261 is inclined, and the inclination angle of the driving groove 261 is 30°. At the same time, a guide groove 262 is opened on one side of the driving groove 261, and the guide groove 262 is arranged in an arc shape.

[0029] The group support seat 23 moves synchronously outward in the following manner: the driving plate 26 rotates, and the driving plate 26 interferes with the driving column 25 through the driving groove 261 thereon, so that the driving column 25 drives the support seat 23 to move horizontally through the driving plate 24;

[0030] When the support seat 23 is in motion, a slider and a slide rail are arranged at the bottom thereof, which can limit and guide the support seat 23 during motion, thereby ensuring the stability of the support seat 23 during motion.

[0031] The guide grooves 262 are arranged in four groups evenly distributed on the surface of the driving plate 26 , and the guide posts 263 are inserted into the guide grooves 262 . Meanwhile, the four groups of guide posts 263 are evenly fixed to the upper side of the interior of the installation area 22 .

Claims

1. A permanent magnet ultra-high efficiency submersible motor, comprising a submersible motor body (1), characterized in that: A rotor (11) is movably mounted inside the submersible motor body (1), and a stator (12) is mounted outside the rotor (11); a rotating shaft (14) is fixedly mounted on the top of the rotor (11), and a bearing seat (13) is mounted outside the rotating shaft (14); An upper support assembly (2) is installed on the upper side of the submersible motor body (1), and a lower support assembly (3) is installed on the lower side of the submersible motor body (1); the upper support assembly (2) comprises a mounting seat (21) fixedly mounted on the inner wall of the submersible motor body (1), and a mounting area (22) is provided inside the mounting seat (21); a driving plate (24) is movably arranged inside the mounting area (22), and the end of the driving plate (24) is fixedly connected to the support seat (23); a driving plate (26) is movably mounted on the surface of the driving plate (24), and a rack (264) is screwed and fixed on the outer side of the driving plate (26), and the rack (264) is meshed with a gear (265), and the rotating shaft of the gear (265) is fixed to the output shaft of a micro motor fixedly connected to the inside of the submersible motor body (1).

2. A permanent magnet ultra-high efficiency submersible motor according to claim 1, characterized in that: The mounting seat (21) and the driving plate (26) are both circular structures, and the axial sections of the mounting seat (21) and the driving plate (26) are concentric circle structures.

3. A permanent magnet ultra-high efficiency submersible motor according to claim 1, characterized in that: Four groups of receiving grooves are evenly arranged on the outer side of the mounting seat (21), and support seats (23) are installed inside the four groups of receiving grooves. Rubber seats are arranged on the surfaces of the four groups of support seats (23), and driving plates (24) are installed on the inner walls of the four groups of support seats (23).

4. A permanent magnet ultra-high efficiency submersible motor according to claim 3, characterized in that: The ends of the four groups of driving plates (24) are all fixedly provided with driving posts (25), and the sizes of the driving posts (25) and the driving slots (261) are adapted to each other, and the driving posts (25) are inserted into the interior of the driving slots (261), and the driving slots (261) are provided with four groups uniformly opened on the surface of the driving plate (26).

5. A permanent magnet ultra-high efficiency submersible motor according to claim 4, characterized in that: The driving groove (261) is arranged to be inclined, and the inclination angle of the driving groove (261) is 30°. At the same time, a guide groove (262) is provided on one side of the driving groove (261), and the guide groove (262) is arranged to be arc-shaped.

6. A permanent magnet super high efficiency submersible motor according to claim 5, characterized in that: The guide grooves (262) are arranged in four groups and are evenly distributed on the surface of the driving plate (26), and guide pillars (263) are inserted into the guide grooves (262), while the four groups of guide pillars (263) are evenly fixed to the upper side of the interior of the installation area (22).

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