CN111561459B - High-speed AC/DC permanent magnet synchronous water pump motor for well - Google Patents
High-speed AC/DC permanent magnet synchronous water pump motor for well Download PDFInfo
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- CN111561459B CN111561459B CN202010480985.8A CN202010480985A CN111561459B CN 111561459 B CN111561459 B CN 111561459B CN 202010480985 A CN202010480985 A CN 202010480985A CN 111561459 B CN111561459 B CN 111561459B
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- oil bag
- waterproof chamber
- bearing seat
- assembly
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 235000020681 well water Nutrition 0.000 claims description 22
- 239000002349 well water Substances 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 8
- 230000005389 magnetism Effects 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 230000009189 diving Effects 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
- F04D13/10—Units comprising pumps and their driving means the pump being electrically driven for submerged use adapted for use in mining bore holes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/132—Submersible electric motors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to a high-speed AC/DC permanent magnet synchronous water pump motor for a well, which comprises a machine barrel (1), wherein one end of the machine barrel (1) is provided with a framework oil seal (3), a waterproof chamber cover (4) and a rubber pad (5), and an inner cavity at the end part of the machine barrel of the framework oil seal (3), the waterproof chamber cover (4) and the rubber pad (5) is sequentially provided with a mechanical seal assembly (6), a first bearing seat (7), a waterproof chamber oil bag (8), an oil bag pressing plate (9), a bolt (10), a stator assembly (2), a rotor assembly (11), a rotor shaft telescopic adjusting plate (12), a second bearing seat (13), an adjusting bolt (14), a driver (15), a differential pressure telescopic oil bag (16), an oil bag cover (17) and a clamp spring (18), and the high-speed AC/DC permanent magnet synchronous water pump motor has the following advantages: the rotation speed is up to 4000-10000 revolutions per minute, the number of the sections of the impeller of the pump with the same lift is only one third of that of a conventional deep-well pump, the rated lift is 200 meters, the number of the impellers of the conventional deep-well pump required by an asynchronous motor is more than 30 sections, and the invention can meet the requirements by only 10 sections of impellers, and the problem of water inflow in the motor is thoroughly and effectively solved by adopting the structure.
Description
Technical Field
The invention belongs to the technical field of water pump motors for wells, and particularly relates to a high-speed alternating-current and direct-current permanent magnet synchronous water pump motor for wells.
Background
In the prior art, the working environment of the water pump motor for the well is basically placed in a deep well, the diving depth (model 125, namely a 6 inch well pump) of the oil immersed deep well water pump motor in the market at present can only reach 60 meters, the maximum diving depth below (model 90, namely a 4 inch well pump) is not more than 150 meters, the water level exceeds the above depth, the conventional deep well water pump motor can crush the machine barrel and parts in the machine barrel by water pressure, so that the damage of the deep well water pump motor is influenced, the well water and the whole well are polluted due to the leakage of white oil in the deep well water pump motor, and the economic loss is very serious.
Disclosure of Invention
In order to overcome the defects of the prior art of the water pump motor for the well, the invention aims to provide the water pump motor for the well with high-speed alternating current and direct current permanent magnet synchronous, wherein a mechanical sealing component, a waterproof chamber oil bag and a differential pressure telescopic oil bag are added in the barrel of the traditional water pump motor for the well, the mechanical sealing component is adopted to drive the motor at high speed under deep water, and external water cannot enter the waterproof chamber; the waterproof chamber oil bag is used for absorbing the pressure generated by the expansion of white oil due to the increase of the indoor temperature caused by the high-speed operation of the waterproof chamber mechanical seal assembly; the differential pressure telescopic oil bag is used for balancing the differential pressure inside and outside the machine barrel, when the differential pressure inside and outside exceeds 0.5 kg, the differential pressure telescopic oil bag makes pressure regulation reaction, the differential pressure outside the machine barrel is always ensured not to exceed 0.5 kg, the machine barrel is prevented from expanding and cracking, namely, the differential pressure telescopic oil bag in the machine barrel stretches and extrudes white oil in the machine barrel, so that the internal pressure is increased and the external pressure is equal, the differential pressure inside the machine barrel of the well water pump motor is correspondingly changed along with the change of the water depth of the well water pump motor, and the differential pressure telescopic oil bag in the machine barrel is prevented from expanding and cracking by contracting and releasing the pressure, thereby avoiding loss and ensuring the continuous operation of the oil immersed deep well pump motor between 60 meters and 300 meters.
In order to achieve the above object, the technical scheme of the present invention is as follows:
The utility model provides a high-speed alternating current-direct current permanent magnetism synchronous well water pump motor, includes barrel 1, and barrel 1 is a high-speed alternating current-direct current permanent magnetism synchronous well water pump motor shell, its characterized in that: one end of the machine barrel 1 is provided with a framework oil seal 3, a waterproof chamber cover 4 and a rubber gasket 5, the inner cavities of the machine barrel end parts of the framework oil seal 3, the waterproof chamber cover 4 and the rubber gasket 5 are sequentially provided with a mechanical seal component 6, a first bearing seat 7, a waterproof chamber oil bag 8, an oil bag pressing plate 9, a bolt 10, a stator assembly 2, a rotor assembly 11, a rotor shaft telescopic adjusting plate 12, a second bearing seat 13, an adjusting bolt 14, a driver 15, a differential pressure telescopic oil bag 16, an oil bag cover 17 and a clamp spring 18, the machine barrel 1 is composed of circular pipes with unequal inner diameters, wherein the inner diameter of a circular pipe 1a in the first stage is D1, the inner diameter of a circular pipe 1b in the second stage is D2, the inner diameter of a circular pipe 1c in the third stage is D3, the inner diameter of a circular pipe 1D in the fourth stage is D4, the inner diameter of a circular pipe 1e in the fifth stage is D5, the D1 is an expansion port, the inner diameters of D2, the D3 and D4 are equal, the inner diameter of the D5 is larger than the assembly section of the clamp spring 18, the driver 15 is assembled in the inner cavity of the inner diameter D3 of the circular tube 1c in the third stage of the machine barrel 1, the differential pressure telescopic oil bag 16 and the oil bag cover 17 are assembled in the inner cavity of the D4 of the circular tube 1D in the fourth stage of the machine barrel 1, the clamp spring 18 is assembled in the inner cavity of the inner diameter D5 of the circular tube 1e in the fifth stage of the machine barrel 1, the differential pressure telescopic oil bag 16 and the oil bag cover 17 are clamped in the inner cavity of the D4 of the circular tube 1D in the fourth stage of the machine barrel 1 by the clamp spring 18, the second bearing seat 13, the rotor shaft telescopic adjusting plate 12 and the adjusting bolt 14 are assembled at the tail end (the joint of the D2 and the D3) of the inner cavity of the circular tube 1b in the second stage, the stator assembly 2 is assembled, the front end of the rotor assembly 11 is assembled with the first bearing seat 7, the waterproof chamber oil bag 8 and the oil bag pressing plate 9, the tail end of the rotor assembly 11 is arranged on the second bearing seat 13 of the inner cavity of the D2 of the circular tube 1b in the machine barrel 1, the mechanical seal assembly 6 is sleeved on the rotor assembly 11, the rubber pad 5 and the waterproof chamber cover 4 are sequentially assembled on the first bearing seat 7, and the framework oil seal 3 is assembled on the waterproof chamber cover 4 to form the high-speed AC/DC permanent magnet synchronous water pump motor for the well;
the mechanical seal assembly 6 is composed of a mechanical seal assembly shell 6a, a locking screw 6b and symmetrical wave springs 6c, a baffle 6d, an O-shaped sealing ring 6e, a rotary friction plate 6f, a clamping ring 6g, a fixed friction plate 6h and a fixed rubber ring 6i which are sequentially assembled at two ends of the mechanical seal assembly shell 6a, wherein the mechanical seal assembly 6 is assembled in a central through hole 7c of the first bearing seat 7 and sleeved with the rotor assembly 11;
The waterproof chamber oil bag 8 consists of an annular connector 8a, an annular groove 8b, a waterproof chamber oil bag cavity 8c, a telescopic corrugated pipe 8d and an oil bag bottom 8e, wherein the annular connector 8a and the annular groove 8b are in butt joint with a waterproof chamber oil bag runner assembly hole 7a of the first bearing seat 7, the annular connector 8a is connected with the telescopic corrugated pipe 8d into a whole, and the telescopic corrugated pipe 8d is connected with the oil bag bottom 8e into a whole to form a waterproof chamber oil bag cavity 8c;
The first bearing seat 7 is provided with a central through hole 7c for assembling the mechanical seal assembly 6 and the rotor assembly 11 in series connection, the inner side of the axial edge of the first bearing seat 7 is provided with a waterproof chamber oil bag runner assembly hole 7a and a bolt hole 7b for assembling a waterproof chamber oil bag 8, the waterproof chamber oil bag 8 is arranged in the waterproof chamber oil bag runner assembly hole 7a and then is assembled with an oil bag pressing plate 9, then is connected with the bolt hole 7b through a bolt 10 in a threaded manner, the waterproof chamber oil bag 8 is fixedly connected on the first bearing seat 7 through the oil bag pressing plate 9 and the bolt 10, the first bearing seat 7 is provided with four groups of waterproof chamber oil bag runner assembly holes 7a and bolt holes 7b for assembling the waterproof chamber oil bag 8, and the waterproof chamber oil bag pressing plate 9 and the adjusting bolt 14 are correspondingly provided with four groups of waterproof chamber oil bag runner assembly holes 7a and bolt holes 7 b;
the differential pressure telescopic oil bag 16 is composed of an oil bag telescopic corrugated pipe 16a and an oil bag cover matching section 16c, the bottom of the oil bag telescopic corrugated pipe 16a is closed, and the oil bag telescopic corrugated pipe 16a and the oil bag cover matching section 16c are connected into a whole to form an oil bag telescopic cavity 16b.
The oil bag cover 17 is bowl-shaped and consists of a bowl-shaped edge annular joint 17a, a bowl-shaped oil bag cover body 17b, a bottom annular groove 17c and a bottom annular groove through hole 17d, and the shape of the oil bag cover 17 is matched with the inner wall of the oil bag cover matching section 16 c.
Working principle: the rotor assembly is an electromagnetic field capable of converting pole phases and is composed of magnetic steel sheets and enameled wires, the rotor is a multipolar permanent magnet, the phase conversion of the magnetic poles of the rotor assembly is controlled by a driver, when the driver is electrified, the driver can control the phase conversion, current and frequency of the magnetic poles of the stator assembly, the rotor assembly is driven to rotate at high speed under the state that the magnetic field of the stator assembly continuously changes the magnetic poles, and then the output shaft of the rotor assembly is connected with a plurality of sections of pump shafts to rotate, so that the pumping result is achieved.
The invention has the advantages that: because the conventional deep-well pump motor in the current market belongs to an asynchronous two-pole motor, the rotating speed of the motor is up to 3000 rpm; due to the limitation of the diameter of the deep well caliber, the motor of the deep well pump below (model 125 is 6 inches) is not more than 11KW; the invention adopts the mechanical sealing component, the motor runs at high speed under deep water, and outside water cannot enter the waterproof chamber; the waterproof chamber oil bag is used for absorbing the pressure generated by the expansion of white oil due to the increase of the indoor temperature caused by the high-speed operation of the waterproof chamber mechanical seal assembly; the differential pressure telescopic oil bag is used for balancing the differential pressure inside and outside the machine barrel, and when the differential pressure inside and outside exceeds 0.5 kg, the differential pressure telescopic oil bag carries out pressure regulation reaction, so that the differential pressure outside the machine barrel is always ensured to be not more than 0.5 kg, and the machine barrel is prevented from expanding and cracking; the application of the differential pressure telescopic oil bag thoroughly solves the problem that the water pressure at the bottom of the well is increased due to the water level rise in the well when the well pump motor stops working in the well, extrudes the well pump motor, and ensures the continuous working of the well pump motor between 60 meters and 300 meters; the invention has small volume, light weight and rotational speed of 4000 to 10000 revolutions per minute (model 90 is 4 inch), the motor of the deep well pump can achieve 15KW, and the number of the sections of the impeller of the pump with the same lift only needs one third of the conventional deep well pump; for example, the rated lift is 200 meters, the impeller of a conventional deep-well pump using an asynchronous motor needs more than 30 sections, and the invention can meet the requirement by only 10 sections of impellers. Because the pump motor for the high-speed AC/DC permanent magnet synchronous well has high rotating speed, the waterproof is a difficult problem, and the invention thoroughly and effectively solves the problem of water inflow in the motor due to the adoption of the structure.
Drawings
FIG. 1 is a schematic diagram of the external appearance of a high-speed AC/DC permanent magnet synchronous well water pump motor according to the invention;
FIG. 2 is a schematic diagram of a high-speed AC/DC permanent magnet synchronous well water pump motor construction according to the present invention;
FIG. 3 is an exploded schematic view of the components of a high-speed AC/DC permanent magnet synchronous well water pump motor of the present invention;
FIG. 4 is a schematic view of the mechanical seal assembly of the high-speed AC/DC permanent magnet synchronous well water pump motor of the present invention;
FIG. 5 is an exploded schematic view of a mechanical seal assembly of a high-speed AC/DC permanent magnet synchronous well water pump motor of the present invention;
FIG. 6 is a schematic diagram of the connection of the first bearing seat of the high-speed AC/DC permanent magnet synchronous well water pump motor with the waterproof chamber oil bag, the oil bag pressing plate and the bolts;
FIG. 7 is a schematic diagram of the construction of a waterproof chamber oil bag of a high-speed AC/DC permanent magnet synchronous well water pump motor of the invention;
FIG. 8 is a schematic perspective view of the configuration of FIG. 7;
FIG. 9 is a schematic diagram of a three-dimensional structure of a differential pressure telescopic oil bag of a high-speed AC/DC permanent magnet synchronous well water pump motor according to the invention;
FIG. 10 is a schematic diagram of the differential pressure telescopic oil bag of the high-speed AC/DC permanent magnet synchronous well water pump motor;
FIG. 11 is a schematic diagram of the oil bag cover (semi-section) construction of a high-speed AC/DC permanent magnet synchronous well water pump motor of the present invention;
FIG. 12 is a right side view of FIG. 11;
fig. 13 is a perspective view of fig. 11.
The reference numbers in the drawings: 1. the machine barrel comprises a machine barrel, a first-stage circular pipe, a second-stage circular pipe, a third-stage circular pipe, a fourth-stage circular pipe, a fifth-stage circular pipe, a stator assembly, a framework oil seal, a waterproof chamber cover, a rubber gasket, a mechanical seal assembly and a shell of the mechanical seal assembly, wherein the machine barrel comprises a first-stage circular pipe, a second-stage circular pipe, a third-stage circular pipe, a fourth-stage circular pipe, a fifth-stage circular pipe, a stator assembly, a framework oil seal, a waterproof chamber cover, a rubber gasket, a mechanical seal assembly and a shell of the mechanical seal assembly, 6b, locking screw, 6c, wave spring, 6d, baffle, 6 e.O-ring, 6f, rotary friction plate, 6g, collar, 6h, fixed friction plate, 6i, fixed rubber ring, 7, first bearing seat, 7a, waterproof chamber oil bag flow passage assembly hole, 7b, bolt hole, 7c, central through hole, 8, waterproof chamber oil bag, 8a, annular joint, 8b, annular groove, 8c, waterproof chamber oil pocket cavity, 8d, bellows, 8e, oil pocket bottom, 9, oil pocket pressure plate, 10, bolt, 11, rotor assembly, 12, rotor shaft telescoping adjustment plate, 13, second bearing seat, 14, adjustment bolt, 15, driver, 16, differential pressure telescoping oil pocket, 16a, bellows, 16b, oil pocket telescoping cavity, 16c, oil pocket cover mating segment, 17, oil pocket cover, 17a, bowl-shaped edge annular joint, 17b, bowl-shaped oil pocket cover body, 17c, bottom annular groove, 17d, bottom annular groove through hole, 18, snap spring.
Detailed Description
The following describes a specific embodiment of the high-speed ac/dc permanent magnet synchronous water pump motor for wells in detail with reference to the accompanying drawings.
As shown in fig. 1-3: the invention relates to a high-speed AC/DC permanent magnet synchronous water pump motor for a well, which comprises a machine barrel 1, wherein the machine barrel 1 is a high-speed AC/DC permanent magnet synchronous water pump motor shell, one end of the machine barrel 1 is provided with a framework oil seal 3, a waterproof chamber cover 4 and a rubber gasket 5, an inner cavity at the end part of the machine barrel of the framework oil seal 3, the waterproof chamber cover 4 and the rubber gasket 5 is sequentially provided with a mechanical seal assembly 6, a first bearing seat 7, a waterproof chamber oil bag 8, an oil bag pressing plate 9, a bolt 10, a stator assembly 2, a rotor assembly 11, a rotor shaft telescopic regulating plate 12, a second bearing seat 13, a regulating bolt 14, a driver 15, a differential pressure telescopic oil bag 16, an oil bag cover 17 and a clamp spring 18, the machine barrel 1 is composed of circular pipes with unequal inner diameters, wherein the inner diameter of a circular pipe 1a in the first stage is D1, the inner diameter of a circular pipe 1b in the second stage is D2, the inner diameter of a circular pipe 1c in the third stage is D3, the inner diameter of a circular pipe 1D in the fourth stage is 4, the inner diameter of the circular tube 1e in the fifth stage is D5, D1 is an enlarged port, the inner diameters of D2, D3 and D4 are equal, the inner diameter of D5 is larger than the inner diameter of D4 and is an assembly section of a clamp spring 18, a driver 15 is assembled in the inner cavity of the circular tube 1c in the third stage of the cylinder 1, a differential pressure telescopic oil bag 16 and an oil bag cover 17 are assembled in the inner cavity of the circular tube 1D in the fourth stage of the cylinder 1, the clamp spring 18 is assembled in the inner cavity of the circular tube 1e in the fifth stage of the cylinder 1, the differential pressure telescopic oil bag 16 and the oil bag cover 17 are clamped in the inner cavity of the circular tube 1D in the fourth stage of the cylinder 1 by the clamp spring 18, a second bearing assembly 13, a rotor shaft telescopic adjusting plate 12 and an adjusting bolt 14 are assembled in the tail end (joint point of D2 and D3) of the inner cavity of the circular tube 1b in the second stage, a stator assembly 2 is assembled in the front of the rotor assembly 11, a first bearing seat 7 is assembled, after the waterproof chamber oil bag 8 and the oil bag pressing plate 9 are assembled, the tail end of a rotor assembly 11 with the tail end and the front end is arranged on a second bearing seat 13 of a D2 inner cavity of a round tube 1b in the second stage of the machine barrel 1, a mechanical sealing assembly 6 is sleeved on the rotor assembly 11, a rubber pad 5 and a waterproof chamber cover 4 are assembled on the first bearing seat 7 in sequence, and a framework oil seal 3 is assembled on the waterproof chamber cover 4 to form the high-speed AC/DC permanent magnet synchronous water pump motor for the well.
As shown in fig. 4-5, the mechanical seal assembly 6 is composed of a mechanical seal assembly shell 6a, a locking screw 6b, symmetrical wave springs 6c, a baffle 6d, an O-ring 6e, a rotary friction plate 6f, a clamping ring 6g, a fixed friction plate 6h and a fixed rubber ring 6i, which are assembled at two ends of the mechanical seal assembly shell 6a in sequence, and the mechanical seal assembly 6 is assembled in a central through hole 7c of the first bearing seat 7 and sleeved with the rotor assembly 11.
As shown in fig. 6, the first bearing seat 7 is provided with a central through hole 7c for assembling the mechanical seal assembly 6 and the rotor assembly 11 in series connection, the inner side of the axial edge of the first bearing seat 7 is provided with a waterproof chamber oil bag runner assembly hole 7a and a bolt hole 7b for assembling the waterproof chamber oil bag 8, the waterproof chamber oil bag 8 is arranged in the waterproof chamber oil bag runner assembly hole 7a and then is assembled with an oil bag pressing plate 9, then is connected with the bolt hole 7b through a bolt 10 in a screwed manner, the waterproof chamber oil bag 8 is fixedly connected on the first bearing seat 7 through the oil bag pressing plate 9 and the bolt 10, wherein the first bearing seat 7 is provided with four groups of waterproof chamber oil bag runner assembly holes 7a and bolt holes 7b for assembling the waterproof chamber oil bag 8, the oil bag pressing plate 9 and the bolt 10, and the waterproof chamber oil bag runner assembly holes 7a and the bolt holes 7b are correspondingly provided with four groups.
As shown in fig. 7-8, the waterproof chamber oil bag 8 is composed of an annular joint 8a, an annular groove 8b, a waterproof chamber oil bag cavity 8c, a telescopic bellows 8d and an oil bag bottom 8e, the annular joint 8a and the annular groove 8b are in butt joint with the waterproof chamber oil bag runner assembly hole 7a of the first bearing seat 7, the annular joint 8a is connected with the telescopic bellows 8d into a whole, and the telescopic bellows 8d is connected with the oil bag bottom 8e into a whole to form the waterproof chamber oil bag cavity 8c.
As shown in fig. 9-10, the differential pressure telescopic oil bag 16 is composed of an oil bag telescopic corrugated pipe 16a and an oil bag cover matching section 16c, the bottom of the oil bag telescopic corrugated pipe 16a is closed, and the oil bag telescopic corrugated pipe 16a and the oil bag cover matching section 16c are connected into a whole to form an oil bag telescopic cavity 16b.
As shown in fig. 11-13, the oil bag cover 17 is bowl-shaped and consists of a bowl-shaped edge annular joint 17a, a bowl-shaped oil bag cover body 17b, a bottom annular groove 17c and a bottom annular groove through hole 17d, and the shape of the oil bag cover 17 is matched with the inner wall of the oil bag cover matching section 16 c.
Working principle: the stator assembly is an electromagnetic field capable of converting pole phases, the rotor is a multipolar permanent magnet, the phase conversion of the magnetic poles of the stator assembly is controlled by the driver, when the driver is electrified, the driver can control the phase conversion, current and frequency of the magnetic poles of the stator assembly, the rotor assembly is driven to rotate at high speed under the state that the magnetic field of the stator assembly continuously changes the magnetic poles, and then the output shaft of the rotor assembly is connected with a plurality of sections of pump shafts to rotate, so that the pumping result is achieved.
The foregoing describes the embodiments of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (2)
1. The utility model provides a high-speed alternating current-direct current permanent magnetism synchronous well water pump motor, includes barrel (1), and barrel (1) is a high-speed alternating current-direct current permanent magnetism synchronous well water pump motor shell, its characterized in that: one end of a machine barrel (1) is provided with a framework oil seal (3), a waterproof chamber cover (4) and a rubber pad (5), an inner cavity at the end part of the machine barrel of the framework oil seal (3), the waterproof chamber cover (4) and the rubber pad (5) is sequentially provided with a mechanical sealing component (6), a first bearing seat (7), a waterproof chamber oil bag (8), an oil bag pressing plate (9), a bolt (10), a stator assembly (2), a rotor assembly (11), a rotor shaft telescopic adjusting plate (12), a second bearing seat (13), an adjusting bolt (14), a driver (15), a differential pressure telescopic oil bag (16), an oil bag cover (17) and a clamp spring (18), the machine barrel (1) is composed of circular pipes with unequal inner diameters, wherein the inner diameter of a circular pipe (1 a) in a first stage is D1, the inner diameter of a circular pipe (1 b) in a second stage is D2, the inner diameter of a circular pipe (1 c) in a third stage is D3, the inner diameter of a circular pipe (1D) in a fourth stage is D4, the inner diameter of a circular pipe (1 e) in a fifth stage is D5, the inner diameter of the circular pipe is an expansion port, the inner diameter of the circular pipe D2, the inner diameter of the circular pipe (4) in the third stage (1D) is larger than the inner diameter of the circular pipe (4) in the inner diameter of the fourth stage (1D) of the circular pipe (1) is 4) in the inner cavity of the machine barrel (1) is assembled in the third stage (1) is the inner cavity (1) of the cylinder (1) is assembled The hydraulic pump comprises an oil bag cover (17), a clamp spring (18) is assembled in the inner cavity of an inner diameter D5 of a round tube (1 e) in a fifth stage of a machine barrel (1), a differential pressure telescopic oil bag (16) and the oil bag cover (17) are clamped in an inner cavity of a D4 of a round tube (1D) in a fourth stage of the machine barrel (1) by the clamp spring (18), a second bearing seat (13), a rotor shaft telescopic adjusting plate (12) and an adjusting bolt (14) are assembled at the tail end of the D2 inner cavity of the round tube (1 b) in a second stage, a stator assembly (2) is assembled, the front end of the rotor assembly (11) is assembled with a first bearing seat (7), a waterproof chamber oil bag (8) and an oil bag pressing plate (9), the tail end of the rotor assembly (11) after the tail end and the front end are assembled is arranged on a second bearing seat (13) of the D2 inner cavity of the round tube (1 b) in the machine barrel (1), a mechanical sealing assembly (6) is sleeved on the rotor assembly (11), a rubber gasket (5) and a waterproof chamber cover (4) are assembled on the first bearing seat (7) in sequence, and the waterproof chamber oil seal (3) is assembled on the permanent magnet motor to form a high-speed synchronous water pump;
the mechanical seal assembly (6) is formed by sequentially assembling symmetrical wave springs (6 c), baffles (6 d), O-shaped sealing rings (6 e), rotating friction plates (6 f), clamping rings (6 g), fixed friction plates (6 h) and fixed rubber rings (6 i) at two ends of the mechanical seal assembly shell (6 a), locking screws (6 b), and the mechanical seal assembly (6) is assembled in a central through hole (7 c) of the first bearing seat (7) and sleeved with the rotor assembly (11);
The waterproof chamber oil bag (8) is composed of an annular joint (8 a), an annular groove (8 b), a waterproof chamber oil bag cavity (8 c), a telescopic corrugated pipe (8 d) and an oil bag bottom (8 e), the annular joint (8 a) and the annular groove (8 b) are in butt joint with a waterproof chamber oil bag runner assembly hole (7 a) of the first bearing seat (7), the annular joint (8 a) is connected with the telescopic corrugated pipe (8 d) into a whole, and the telescopic corrugated pipe (8 d) is connected with the oil bag bottom (8 e) into a whole to form a waterproof chamber oil bag cavity (8 c);
the first bearing seat (7) is provided with a central through hole (7 c) for assembling the mechanical seal assembly (6) and the rotor assembly (11) in series connection, the inner side of the axial edge of the first bearing seat (7) is provided with a waterproof chamber oil bag runner assembly hole (7 a) and a bolt hole (7 b) for assembling a waterproof chamber oil bag (8), the waterproof chamber oil bag (8) is arranged in the waterproof chamber oil bag runner assembly hole (7 a) and then is provided with an oil bag pressing plate (9), then is connected with the bolt hole (7 b) through a bolt (10) in a threaded manner, the waterproof chamber oil bag (8) is fixedly connected on the first bearing seat (7) through the oil bag pressing plate (9) and the bolt (10), the first bearing seat (7) is provided with four groups of waterproof chamber oil bag runner assembly holes (7 a) and bolt holes (7 b) for assembling the waterproof chamber oil bag (8), and the oil bag pressing plate (9) and the bolt (10) are correspondingly provided with four groups of waterproof chamber oil bag runner assembly holes (7 a) and bolt holes (7 b);
The differential pressure telescopic oil bag (16) is composed of an oil bag telescopic corrugated pipe (16 a) and an oil bag cover matching section (16 c), the bottom of the oil bag telescopic corrugated pipe (16 a) is closed, and the oil bag telescopic corrugated pipe (16 a) and the oil bag cover matching section (16 c) are connected into a whole to form an oil bag telescopic cavity (16 b).
2. A high-speed ac/dc permanent magnet synchronous well water pump motor as in claim 1, wherein: the oil bag cover (17) is bowl-shaped and consists of a bowl-shaped edge annular joint (17 a), a bowl-shaped oil bag cover body (17 b), a bottom annular groove (17 c) and a bottom annular groove through hole (17 d), and the shape of the oil bag cover (17) is prepared with the inner wall of the oil bag cover matching section (16 c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN114530971B (en) * | 2022-03-15 | 2023-09-22 | 安徽皖新电机有限公司 | Permanent magnet motor convenient for pressing in oil seal and pressing-in method |
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| CN111561459A (en) | 2020-08-21 |
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