CN111181338A - High-voltage permanent magnet intelligent driving system for water conservancy vertical shaft - Google Patents
High-voltage permanent magnet intelligent driving system for water conservancy vertical shaft Download PDFInfo
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- CN111181338A CN111181338A CN201911343935.9A CN201911343935A CN111181338A CN 111181338 A CN111181338 A CN 111181338A CN 201911343935 A CN201911343935 A CN 201911343935A CN 111181338 A CN111181338 A CN 111181338A
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- rotor
- permanent magnet
- magnetic
- driving system
- water conservancy
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
- H02K1/30—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
Abstract
The invention discloses a high-voltage permanent magnet intelligent driving system for a water conservancy shaft, which comprises a shell, a stator component, a rotor component and a high-power permanent magnet motor driver, wherein the length-diameter ratio of a rotor is more than or equal to 11 and less than or equal to 20, the rotor component comprises two rotor units which are coaxial with each other and sleeved on the same rotor rotating shaft, a magnetic isolation partition plate is arranged between the two rotor units, and the two rotor units and the magnetic isolation partition plate are tightly abutted together. The invention has the beneficial effects that: the low-speed large-torque high-voltage permanent magnet intelligent driving system is suitable for the water conservancy shaft environment, and solves the problems of high energy consumption, easy damage of a speed reducer, short maintenance period, high maintenance cost, high noise and vibration of the driving system and shaft space limitation.
Description
Technical Field
The invention belongs to the technical field of motors special for water conservancy shafts in the technical field of permanent magnet motor manufacturing, and particularly relates to a high-voltage permanent magnet intelligent driving system applied to a water conservancy shaft.
Background
At present, the structure of a high-pressure large-torque vertical well pump driving system is that a high-pressure asynchronous motor, a coupler, a speed reducer, a coupler and an impeller are added, the asynchronous motor has the advantages of simple structure, high reliability, simpler control system and the like, but the efficiency and the power factor of the asynchronous motor are low in performance, which is not beneficial to improving the working efficiency of the whole system and reducing the cost; meanwhile, the asynchronous motor is slender in structure, particularly the concentricity grade of a rotor needs to be more than 3 grades, so that the problem that the submersible pump system vibrates greatly due to large concentricity caused by accumulated errors is solved, and certain risks exist in processing and manufacturing. And the failure rate and the maintenance times of the unit are increased.
In order to solve the above problems, a high-pressure high-torque shaft pump driving system has been developed, which has the following advantages compared to an asynchronous motor:
1. the rotor of the high-voltage high-torque shaft pump driving system rotates at a synchronous speed, the loss on the rotor is much smaller than that of an asynchronous motor, the permanent magnet motor adopts permanent magnet excitation, the proportion of reactive components in current is smaller, excitation loss, slip loss and rotor loss do not exist, and the power factor of the permanent magnet motor is higher, so that the permanent magnet motor is more energy-saving and efficient, and the quality of a power grid can be improved due to the high power factor characteristic.
2. The asynchronous motor has the problem of slip, if the speeds of a plurality of motors are different, internal stress can be caused, the precision of a control system can be influenced, local temperature rise is overhigh, the service life of the motor is seriously influenced, and because the rotating speed of the permanent magnet synchronous motor strictly follows the synchronous rotating speed, the permanent magnet synchronous motor does not have the slip between each motor, and the negative influence caused by segmentation can be effectively solved.
Because the external diameter size of the motor is limited, the asynchronous motor cannot be made into multiple poles, the rotating speed is high, so that the number of fault points of the system is increased, the efficiency is reduced, the complexity is increased, and the production and maintenance cost of the system is increased.
However, the rotor shafts of the current high-pressure high-torque shaft pump driving system are all fabricated shafts, the rotors are respectively placed on the rotor shafts, and then the rotor shafts are assembled, so that great effort is required to adjust the coaxiality between the rotor shafts, the assembly requirement is extremely high, and the coaxiality between the rotor shafts is difficult to ensure even after the adjustment is completed.
In order to solve the problems, the chinese utility model patent CN 201821173356.5 discloses a super-long and high-efficiency permanent magnet synchronous motor of an oil-submersible direct-drive pump for downhole barrel-type operation, which comprises a housing, a stator assembly, a rotor assembly and a rotor shaft; the rotor shaft is an integral shaft; the rotor assembly comprises a plurality of unit rotors, each unit rotor comprises a rotor core and a permanent magnet arranged on the rotor core, each unit rotor is coaxially connected to the rotor shaft through the rotor core, and a bearing is arranged between every two adjacent unit rotors; stator module includes coil winding, and size and cell type assorted stator silicon steel are towards piece and stator copper towards piece, silicon steel core length equals with rotor core length, stator copper is towards piece and bearing width and equals, all fasten the inner wall at the shell, wherein the unit rotor includes rotor core and sets up the permanent magnet on rotor core, each unit rotor all with its rotor core coaxial coupling on the rotor shaft, be provided with the bearing between the two adjacent unit rotors, such structure has increased the structural component of rotor, the assembly degree of difficulty has been increased, the fault rate of rotor has been increased.
In summary, in order to solve the problems of high energy consumption, high assembly difficulty, easy damage of the speed reducer, short maintenance period, high maintenance cost, high noise and vibration of the driving system and the limitation of the space of the shaft, the intelligent driving capability under the condition of the limitation of the space in the shaft is realized, a high-voltage permanent magnet intelligent driving system for the water conservancy shaft is urgently needed.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a high-voltage permanent magnet intelligent driving system for a water conservancy shaft.
The invention adopts the following specific technical scheme:
a high-voltage permanent magnet intelligent driving system for a water conservancy shaft comprises a shell, a stator component, a rotor component and a high-power permanent magnet motor driver, wherein the length-diameter ratio of a rotor is more than or equal to 11 and less than or equal to 20, the rotor component comprises two rotor units which are coaxial with each other and sleeved on the same rotor rotating shaft, a magnetism isolating partition plate is arranged between the two rotor units, and the two rotor units and the magnetism isolating partition plate are close to each other;
each rotor unit comprises a rotor support, a magnetism isolating sleeve, a magnetic pole iron core and magnetic steel, wherein the rotor support is sleeved with the magnetism isolating sleeve, the magnetic pole iron core is installed on the outer cylindrical surface of each magnetism isolating sleeve, a magnetic steel installation groove is formed between every two adjacent magnetic pole iron cores, the magnetic steel is fixed in the magnetic steel installation groove, the magnetism isolating sleeve is divided into an inner magnetism isolating layer and an outer fixing layer, and the outer fixing layer is made of magnetostrictive materials;
the stator component comprises a stator core formed by laminating a coil winding and a fan-shaped magnetic pole punching sheet, the lengths of the stator core and the magnetic pole core of the rotor are equal, and the stator core and the magnetic pole core are uniformly distributed along the circumference of the inner wall of the shell;
the high-power permanent magnet motor driver is fixed on the outer wall of the shell and is connected with the motor through a junction box.
By adopting the design, a 2500kw high-voltage permanent magnet intelligent driving system is provided for the water conservancy shaft, the requirement of 10000V high-voltage power supply condition is met, the energy is saved, the efficiency is high, the safety and the reliability are realized, the design structure of the slender rotor is simple, the size of the motor is greatly reduced, the space is saved, and the actual field requirement is met; compared with an asynchronous motor, the energy is saved by more than 20%; the double rotors are simple in design structure and easy to install, a magnetism-leakage-proof structure is adopted, the magnetic leakage of the whole magnetic circuit is less, the magnetic performance of the magnetic steel is fully utilized, 5% -10% of permanent magnetic materials are saved compared with the same type of products, the magnetic steel materials are also saved correspondingly, the power density of the motor is further improved, compared with a surface-mounted serial magnetic circuit, the rotor magnetic circuit adopts a parallel structure, rotor magnetic poles formed by magnetic conductive materials are good in air gap magnetic field waveform sine waveform, the torque fluctuation can be effectively controlled, the generation of rectangular waves is prevented, in addition, the diameter of the rotor can be properly increased in the radial direction in the use process due to the characteristics of magnetostrictive materials, the air gap between the rotor and the stator is further reduced on the premise of not sweeping the chamber, the magnetic flux utilization rate is improved, the output power of the motor is increased, and meanwhile, the motor is output according to the, the closed bearing can be adopted by utilizing the characteristic of low speed, so that maintenance-free operation is realized, and the maintenance cost is reduced; the design of the driver control of the high-power permanent magnet motor enables the motor to be easy to realize intelligent and screen operation, and meets the requirement of intensive management.
As a further improvement of the invention, the magnetic isolation end plate fan is fixed on the magnetic pole iron core, and by adopting the design, the magnetic pole punching sheet is fixed by the magnetic pole fixing key, so that the volume of the fan and parts used can be effectively reduced, meanwhile, the magnetic isolation end plate not only plays a role of fixing the fan, but also plays a role of fixing the magnetic steel, and the magnetic steel, the magnetic pole punching sheet and the fan are fixed by one-time fixing.
As a further improvement of the invention, the magnetic isolation end plate fan comprises a magnetic isolation end plate and fan blades, wherein the magnetic isolation end plate and the fan blades are of an integral L-shaped structure, so that parts are further reduced, the structure is simplified, and the size is smaller.
As a further improvement of the invention, the magnetic isolation partition plate is provided with corresponding through holes for connecting magnetic steel, the rotor magnetic circuit adopts a parallel structure, and the rotor magnetic pole formed by a magnetic conductive material has good air gap magnetic field waveform sine waveform, can effectively control torque fluctuation and prevent rectangular wave from generating.
As a further improvement of the invention, the through hole has the same shape as the cross section of the magnetic steel, and the shape of the through hole is 0.1 mm larger than the corresponding size of the cross section of the magnetic steel, so that the installation is convenient and the accuracy of fixing the magnetic steel in the magnetic steel installation groove can be ensured.
As a further improvement of the invention, the output shaft of the motor of the high-voltage permanent magnet intelligent driving system for the water conservancy shaft is connected with a load, and a speed reducer is not arranged in the middle, so that the volume of the high-voltage permanent magnet intelligent driving system for the water conservancy shaft is further reduced, the structure of the whole high-voltage permanent magnet intelligent driving system for the water conservancy shaft is enabled to reduce the fault rate of the high-voltage permanent magnet intelligent driving system for the water conservancy shaft, and the maintenance cost and the equipment investment cost are reduced.
As a further improvement of the invention, the running speed can be adjusted between zero revolution per minute and the rated speed according to actual requirements, and the constant torque is output within the rated speed.
The invention has the positive effects that:
1. the design of the slender double rotors realizes a 2500kw high-voltage permanent magnet intelligent driving system, meets the requirement of 10000V high-voltage power supply conditions, and has the advantages of energy conservation, high efficiency, safety, reliability and simple structure;
2. a speed reducer is omitted, the size is reduced, the space is saved, and the actual field requirements are met;
3. compared with an asynchronous motor, the energy is saved by more than 20%;
4. the pump body is output according to the required rated rotating speed, and a closed bearing is adopted by utilizing the characteristic of low speed, so that maintenance-free operation is realized, and the maintenance cost is reduced;
5. the high-power permanent magnet motor driver is adopted for control, so that intelligent and screen operation is easy to realize, and the requirement of intensive management is met.
Drawings
FIG. 1 is a sectional view of a high-pressure permanent magnet intelligent driving system for a water conservancy shaft, provided by the invention;
FIG. 2 is a left side view of the high-pressure permanent magnet intelligent drive system for a water conservancy shaft shown in FIG. 1;
FIG. 3 is a structural diagram of a motor rotor in the high-pressure permanent magnet intelligent driving system for the water conservancy shaft, which is shown in FIG. 1, according to the invention;
FIG. 4 is a left side view of a rotor structure of a motor in the high-pressure permanent magnet intelligent driving system for the water conservancy shaft, which is shown in FIG. 3, according to the invention;
FIG. 5 is a schematic view of a mounting groove for magnetic steel of a motor rotor in the high-voltage permanent magnet intelligent driving system for the water conservancy vertical shaft;
illustration of the drawings: the rotor comprises a rotating shaft, 2 magnetic isolation partition plates, 3 magnetic pole iron cores, 4 magnetic pole reinforcing keys, 5 right magnetic isolation sleeves, 51 left magnetic isolation sleeves, 6 right rotor supports, 61 left rotor supports, 611 left rotor support outer cylinders, 612 left rotor support webs, 7 right magnetic steels, 71 left magnetic steels, 8 magnetic pole punching sheets, 9 magnetic steel mounting grooves, 10 magnetic pole reinforcing key mounting holes, 11 magnetic steel blocking sheets, 12 magnetic steel mounting positioning holes, 13 nuts, 14 magnetic isolation end plate fans, 15 shells, 16 stator assemblies, 17 high-power permanent magnet motor drivers and 18 rotor assemblies.
Detailed Description
The invention is described in detail below with reference to the following figures and specific embodiments:
the specific embodiment is as follows:
in the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
The first embodiment is as follows:
a high-pressure permanent magnet intelligent driving system for a water conservancy shaft comprises a shell 15, a stator component 16, a rotor component 18 and a high-power permanent magnet motor driver 17, wherein the length-diameter ratio of a rotor is 15, the rotor component 18 comprises two rotor units which are coaxial with each other and sleeved on a same rotor rotating shaft 1, a magnetic isolation partition plate 2 is arranged between the two rotor units, and the two rotor units and the magnetic isolation partition plate 2 are abutted together;
the outer cylindrical surface of rotor spindle 1 is sheathed with right rotor support 6, magnetic isolation space plate 2 and left rotor support 61 from right to left, magnetic isolation space plate 2 is the middle ring in claim 1, right rotor support 6 and left rotor support 61 have the same structure, taking left rotor support 61 as an example, left rotor support outer cylinder 611 is fixed by left rotor support web 612 and sheathed on the outer cylindrical surface of rotor spindle 1 and is limited by flat key to rotate relatively with rotor spindle 1 on rotor spindle 1, right rotor support 6, magnetic isolation space plate 2 and left rotor support 61 are closely leaned together, and each rotor support is sheathed with a magnetic isolation sleeve, namely: the left rotor support 61 is sleeved with a left magnetism isolating sleeve 51, the right rotor support 6 is sleeved with a right magnetism isolating sleeve 5, a magnetic pole iron 3 is arranged on the outer cylindrical surface of each magnetism isolating sleeve, a magnetic steel mounting groove 9 is arranged between adjacent magnetic pole iron cores 3, magnetic steel is fixed in the magnetic steel mounting groove 9, a left magnetic steel 71 is fixed in the left rotor magnetic steel mounting groove 9, a left magnetic steel 7 is fixed in the right rotor magnetic steel mounting groove 9, the magnetism isolating sleeve is divided into an inner magnetism isolating layer and an outer fixing layer, the inner magnetism isolating layer is made of aluminum alloy, the outer fixing layer is made of magnetostrictive material, the magnetic pole iron core 3 is formed by laminating a plurality of magnetic pole punching sheets 8, a fixing through hole is arranged in the middle of each magnetic pole punching sheet 8, namely a magnetic pole reinforcing key mounting hole 10, corresponding magnetic pole punching sheets 8 on the left magnetism isolating sleeve 51 and the right magnetism isolating sleeve 5 are tightly pressed through a magnetic pole reinforcing key, dovetail protrusions are arranged on the inner circle edge of the magnetic pole punching sheet 8, dovetail grooves are arranged on the outer fixing layers of the left magnetic isolation sleeve 51 and the right magnetic isolation sleeve 5, the size and the shape of the dovetail grooves are completely the same and are in one-to-one correspondence, the magnetic pole punching sheet 8 is fixed in the dovetail grooves through the dovetail protrusions, corresponding through holes are formed in the magnetic isolation partition plates 2 and are used for connecting magnetic steel, a magnetic isolation end plate fan 14 is fixed on the magnetic pole iron core 3, the magnetic isolation end plate fan 14 comprises a magnetic isolation end plate and fan blades, the magnetic isolation end plate and the fan blades are of an integral L-shaped structure and are manufactured in a tight casting;
the stator component comprises a stator core formed by laminating a coil winding and a fan-shaped magnetic pole punching sheet, the lengths of the stator core and the magnetic pole core of the rotor are equal, and the stator core and the magnetic pole core are uniformly distributed along the circumference of the inner wall of the shell;
the high-power permanent magnet motor driver is fixed on the outer wall of the machine shell 1 and is connected with the motor through a junction box;
the motor output shaft of the high-voltage permanent magnet intelligent driving system for the water conservancy shaft is connected with a load, a speed reducer is not arranged in the middle, the rotating speed can be adjusted according to actual requirements between zero revolution per minute and rated rotating speed, and constant torque is output in the rated rotating speed.
Detailed description of the invention
A high-pressure permanent magnet intelligent driving system for a water conservancy vertical shaft comprises a shell 15, a stator component 16, a rotor component 18 and a high-power permanent magnet motor driver 17, wherein the length-diameter ratio of a rotor is 18, the rotor component 18 comprises two rotor units which are coaxial with each other and sleeved on a same rotor rotating shaft 1, a magnetic isolation partition plate 2 is arranged between the two rotor units, and the two rotor units and the magnetic isolation partition plate 2 are abutted together;
the outer cylindrical surface of rotor spindle 1 is sheathed with right rotor support 6, magnetic isolation space plate 2 and left rotor support 61 from right to left, magnetic isolation space plate 2 is the middle ring in claim 1, right rotor support 6 and left rotor support 61 have the same structure, taking left rotor support 61 as an example, left rotor support outer cylinder 611 is fixed by left rotor support web 612 and sheathed on the outer cylindrical surface of rotor spindle 1 and is limited by flat key to rotate relatively with rotor spindle 1 on rotor spindle 1, right rotor support 6, magnetic isolation space plate 2 and left rotor support 61 are closely leaned together, and each rotor support is sheathed with a magnetic isolation sleeve, namely: the left rotor support 61 is sleeved with a left magnetism isolating sleeve 51, the right rotor support 6 is sleeved with a right magnetism isolating sleeve 5, a magnetic pole iron 3 is arranged on the outer cylindrical surface of each magnetism isolating sleeve, a magnetic steel mounting groove 9 is arranged between adjacent magnetic pole iron cores 3, magnetic steel is fixed in the magnetic steel mounting groove 9, a left magnetic steel 71 is fixed in the left rotor magnetic steel mounting groove 9, a left magnetic steel 7 is fixed in the right rotor magnetic steel mounting groove 9, the magnetism isolating sleeve is divided into an inner magnetism isolating layer and an outer fixing layer, the inner magnetism isolating layer is made of aluminum alloy, the outer fixing layer is made of magnetostrictive material, the magnetic pole iron core 3 is formed by laminating a plurality of magnetic pole punching sheets 8, a fixing through hole is arranged in the middle of each magnetic pole punching sheet 8, namely a magnetic pole reinforcing key mounting hole 10, corresponding magnetic pole punching sheets 8 on the left magnetism isolating sleeve 51 and the right magnetism isolating sleeve 5 are tightly pressed through a magnetic pole reinforcing key, the inner circle edge of the magnetic pole punching sheet 8 is provided with a dovetail protrusion, the outer fixed layers of the left magnetic isolation sleeve 51 and the right magnetic isolation sleeve 5 are provided with dovetail grooves, the sizes and the shapes of the dovetail grooves are completely the same and are in one-to-one correspondence, the magnetic pole punching sheet 8 is fixed in the dovetail grooves through the dovetail protrusions, the magnetic isolation partition plate 2 is provided with corresponding through holes for connecting magnetic steel, the magnetic isolation end plate fan 14 is fixed on the magnetic pole iron core 3 and comprises a magnetic isolation end plate and fan blades, and the magnetic isolation end plate and the fan blades are of an integral L-shaped structure and are manufactured by punching metal plates;
the stator component comprises a stator core formed by laminating a coil winding and a fan-shaped magnetic pole punching sheet, the lengths of the stator core and the magnetic pole core of the rotor are equal, and the stator core and the magnetic pole core are uniformly distributed along the circumference of the inner wall of the shell;
the high-power permanent magnet motor driver is fixed on the outer wall of the machine shell 1 and is connected with the motor through a junction box;
the motor output shaft of the high-voltage permanent magnet intelligent driving system for the water conservancy shaft is connected with a load, a speed reducer is not arranged in the middle, the rotating speed can be adjusted according to actual requirements between zero revolution per minute and rated rotating speed, and constant torque is output in the rated rotating speed.
The foregoing has outlined broadly some of the aspects and features of the various embodiments, which should be construed to be merely illustrative of various potential applications. Other beneficial results can be obtained by applying the disclosed information in a different manner or by combining various aspects of the disclosed embodiments. Other aspects and a more complete understanding may be obtained by reference to the detailed description of the exemplary embodiments taken in conjunction with the accompanying drawings, based on the scope defined by the claims.
In addition, the invention also discloses the following technical scheme:
the first scheme is as follows:
the magnetic pole iron core 3 is fixed with a rotor fan which comprises a magnetic isolation end plate and fan blades, the magnetic isolation end plate and the fan blades are of an integral L-shaped structure, through holes are formed in the magnetic isolation end plate, the through holes are sleeved at two ends of a magnetic pole reinforcing key 4, the end portions of the magnetic pole reinforcing key are fixed by nuts 13, the size of the magnetic isolation end plate in the circumferential direction is larger than that of a magnetic pole punching sheet 8, and the part larger than the magnetic pole punching sheet 8 is used for blocking the axial movement of the magnetic steel along the rotor.
Scheme II:
be equipped with rectangular magnet steel mounting groove 9 between adjacent magnetic pole iron core 3, magnet steel mounting groove 9 internal fixation has the magnet steel, and the outer cylinder face end in magnet steel mounting groove 9 is equipped with magnet steel separation blade 11, is used for preventing that the magnet steel from throwing away from magnet steel mounting groove 9, magnet steel separation blade 11 is split type structure, sets up respectively on the diameter direction both sides of the fan ring structure of adjacent two magnetic pole towards piece 8, and is close to outer disc.
The third scheme is as follows:
be equipped with rectangular magnet steel mounting groove 9 between adjacent magnetic pole iron core 3, magnet steel mounting groove 9 internal fixation has the magnet steel, and the cylindrical surface end outside magnet steel mounting groove 9 is equipped with magnet steel separation blade 11, is used for preventing that the magnet steel from throwing away from magnet steel mounting groove 9, magnet steel separation blade 11 is overall structure, just is close to the outer disc and is equipped with the fluting on the diameter direction both sides of the fan ring shaped structure of adjacent magnetic pole towards piece 8 to insert magnet steel separation blade 11 and establish in the fluting.
The above examples illustrate the present invention in detail. It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions, deletions, and substitutions which may be made by those skilled in the art within the spirit of the present invention are also within the scope of the present invention.
Claims (7)
1. A high-voltage permanent magnet intelligent driving system for a water conservancy shaft comprises a shell, a stator component, a rotor component and a high-power permanent magnet motor driver, and is characterized in that the length-diameter ratio of a rotor is more than or equal to 11 and less than or equal to 20, the rotor component comprises two rotor units which are coaxial with each other and sleeved on a rotating shaft of the same rotor, a magnetic isolation partition plate is arranged between the two rotor units, and the two rotor units and the magnetic isolation partition plate are close to each other; each rotor unit comprises a rotor support, a magnetism isolating sleeve, a magnetic pole iron core and magnetic steel, wherein the rotor support is sleeved with the magnetism isolating sleeve, the magnetic pole iron core is installed on the outer cylindrical surface of each magnetism isolating sleeve, a magnetic steel installation groove is formed between every two adjacent magnetic pole iron cores, the magnetic steel is fixed in the magnetic steel installation groove, the magnetism isolating sleeve is divided into an inner magnetism isolating layer and an outer fixing layer, and the outer fixing layer is made of magnetostrictive materials; the stator component comprises a stator core formed by laminating a coil winding and a fan-shaped magnetic pole punching sheet, the lengths of the stator core and the magnetic pole core of the rotor are equal, and the stator core and the magnetic pole core are uniformly distributed along the circumference of the inner wall of the shell; the high-power permanent magnet motor driver is fixed on the outer wall of the shell and is connected with the motor through a junction box.
2. The high-voltage permanent magnet intelligent driving system for the water conservancy shaft according to claim 1, wherein a magnetic isolation end plate fan is fixed on the magnetic pole iron core.
3. The high-voltage permanent magnet intelligent driving system for the water conservancy shaft according to claim 2, wherein the magnetic isolation end plate fan comprises a magnetic isolation end plate and fan blades, and the magnetic isolation end plate and the fan blades are of an integral L-shaped structure.
4. The high-voltage permanent magnet intelligent driving system for the water conservancy vertical shaft according to claim 3, wherein corresponding through holes are formed in the magnetism isolating partition plate and used for being connected with the magnetic steel.
5. The high-pressure permanent magnet intelligent driving system for the water conservancy vertical shaft according to claim 4, wherein the through hole has the same shape as the cross section of the magnetic steel, and the shape of the through hole is 0.1 mm larger than the corresponding size of the cross section of the magnetic steel.
6. The high-voltage permanent magnet intelligent driving system for the water conservancy shaft according to any one of claims 1 to 5, wherein an output shaft of a motor of the high-voltage permanent magnet intelligent driving system for the water conservancy shaft is connected with a load, and a speed reducer is not arranged in the middle of the motor.
7. The high-pressure permanent magnet intelligent driving system for the water conservancy shaft according to claim 6, wherein the running rotating speed can be adjusted between zero revolution per minute and a rated rotating speed according to actual requirements, and constant torque is output within the rated rotating speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911343935.9A CN111181338A (en) | 2019-12-24 | 2019-12-24 | High-voltage permanent magnet intelligent driving system for water conservancy vertical shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911343935.9A CN111181338A (en) | 2019-12-24 | 2019-12-24 | High-voltage permanent magnet intelligent driving system for water conservancy vertical shaft |
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| Publication Number | Publication Date |
|---|---|
| CN111181338A true CN111181338A (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911343935.9A Pending CN111181338A (en) | 2019-12-24 | 2019-12-24 | High-voltage permanent magnet intelligent driving system for water conservancy vertical shaft |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111987827A (en) * | 2020-08-20 | 2020-11-24 | 重庆赛力盟电机有限责任公司 | Low-speed load direct-drive permanent magnet motor |
-
2019
- 2019-12-24 CN CN201911343935.9A patent/CN111181338A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111987827A (en) * | 2020-08-20 | 2020-11-24 | 重庆赛力盟电机有限责任公司 | Low-speed load direct-drive permanent magnet motor |
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