CN112228279B - Generator and wind generating set - Google Patents
Generator and wind generating set Download PDFInfo
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- CN112228279B CN112228279B CN201910581654.0A CN201910581654A CN112228279B CN 112228279 B CN112228279 B CN 112228279B CN 201910581654 A CN201910581654 A CN 201910581654A CN 112228279 B CN112228279 B CN 112228279B
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- axial
- radial
- flange
- mounting shaft
- generator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1823—Rotary generators structurally associated with turbines or similar engines
- H02K7/183—Rotary generators structurally associated with turbines or similar engines wherein the turbine is a wind turbine
- H02K7/1838—Generators mounted in a nacelle or similar structure of a horizontal axis wind turbine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention relates to a generator and a wind generating set, wherein the generator comprises a mounting shaft; the power generation unit is arranged on the mounting shaft and comprises an inner component and an outer component which are coaxially arranged, one of the inner component and the outer component is a rotor, the other of the inner component and the outer component is a stator, and the outer component is connected to the mounting shaft; the connecting assembly is arranged between the mounting shaft and the inner member so as to enable the connecting assembly to be rotationally connected with the mounting shaft; the connecting assembly comprises an axial connecting piece arranged in the axial gap and a radial connecting piece arranged in the radial gap, wherein at least one of the axial connecting piece and the radial connecting piece is of a bearing bush structure. The generator and the wind generating set provided by the embodiment of the invention can meet the power generation requirement of the wind generating set, have better bearing capacity, and can ensure the stability of the air gap of the motor, thereby ensuring the power generation benefit of the wind generating set.
Description
Technical Field
The invention relates to the technical field of wind power, in particular to a generator and a wind generating set.
Background
A wind turbine generator system is a device for converting wind energy into electrical energy, and the main component for energy conversion is a generator, which generally includes a rotor and a stator, the rotor and the stator being disposed opposite to each other with a motor air gap therebetween. When the generator is applied to a wind generating set, a rotor of the generator can be connected with a hub of an impeller through a rotating shaft, and a stator of the generator can be connected with a base of a cabin through a fixed shaft. The working principle is that the impeller drives the rotor to rotate under the action of wind load, so that the rotor and the stator cut magnetic lines of force to move, and magnetic induction current is generated and electricity is generated.
Because the hub and the rotor are rigidly connected, the weight of the impeller and the wind load are increased along with the increase of the power of the wind generating set, the rotor deforms more and more under the action of gravity and the wind load, the deformation of the rotor directly causes the uneven motor air gap between the rotor and the stator, and the magnetic flux passing through the induction coil is reduced at the position where the motor air gap is increased, so that the generating efficiency is reduced. The motor air gap diminishes, because of the axiality error of rotor and stator, the rotor will take place the fish tail when rotating and block even die with the stator, influences wind generating set's power generation benefit, still can further influence the performance of generator, reduces the life-span of spare parts such as stator, rotor. Therefore, in the design of wind power generators, the maintenance of the motor air gap is a critical technical issue.
The main way of the current conventional methods for maintaining the air gap of the electrical machine is to increase the stiffness of the whole generator system, such as increasing the stiffness of the stator or rotor, etc., and the application of these methods means an increase in the weight of the electrical machine, so that the manufacturing and transportation costs rise sharply.
Disclosure of Invention
The embodiment of the invention provides a generator and a wind generating set, wherein the generator can meet the power generation requirement of the wind generating set, has better bearing capacity, and can ensure the stability of a motor air gap so as to ensure the power generation benefit of the wind generating set.
In one aspect, a generator is provided according to an embodiment of the present invention, which includes a mounting shaft; the power generation unit is arranged on the mounting shaft and comprises an inner component and an outer component which are coaxially arranged, one of the inner component and the outer component is a rotor, the other one of the inner component and the outer component is a stator, and the outer component is connected to the mounting shaft; an axial gap is formed between the mounting shaft and the inner component in the self axial direction, and a radial gap is formed between the mounting shaft and the inner component in the self radial direction; the connecting assembly is arranged between the installation shaft and the inner member and comprises an axial connecting piece arranged in an axial gap and a radial connecting piece arranged in a radial gap, the axial connecting piece is connected with one of the inner member and the installation shaft and is mutually abutted against the other of the inner member and the installation shaft, the radial connecting piece is connected with one of the inner member and the installation shaft and is mutually abutted against the other of the inner member and the installation shaft, and at least one of the axial connecting piece and the radial connecting piece is of a bearing bush structure.
According to one aspect of the embodiment of the present invention, the axial connector is a bushing structure, and the axial connector is detachably connected with one of the inner member and the mounting shaft and is in sliding fit with the other.
According to one aspect of an embodiment of the present invention, the axial connection is an integral closed loop structure disposed around the axis of the mounting shaft; or, the axial connecting piece includes more than two axial axle bush monomers, and more than two axial axle bush monomers set gradually around the axis of installation axle, and two adjacent axial axle bush monomers splice each other or separate each other.
According to one aspect of the embodiment of the present invention, the radial connector is a bushing structure, and the radial connector is detachably connected with one of the inner member and the mounting shaft and is slidably fitted with the other.
According to one aspect of an embodiment of the present invention, the radial connection is an integral closed loop structure disposed around the axis of the mounting shaft; or, the radial connecting piece includes more than two radial axle bush monomers, and more than two radial axle bush monomers set gradually around the axis of installation axle, and two adjacent radial axle bush monomers splice each other or are at an interval each other.
According to one aspect of the embodiment of the present invention, the number of the axial connectors is two or more, and the two or more axial connectors are arranged at intervals in the axial direction; and/or the number of the radial connecting pieces is more than two, and the more than two radial connecting pieces are arranged at intervals in the axial direction.
According to one aspect of the embodiment of the invention, the number of the power generation units is more than two, the more than two power generation units are sequentially spliced along the axial direction, and the outer member of at least one power generation unit is connected with the mounting shaft.
According to one aspect of an embodiment of the present invention, the mounting shaft includes a center sleeve extending in an axial direction and first and second center flanges connected to the center sleeve and extending in a radial direction, respectively, the outer member being connected to the first center flange of the mounting shaft; the axial connector is arranged between the second central flange and the inner member, and the radial connector is arranged between the second central flange and the inner member or between the central sleeve and the inner member.
According to one aspect of an embodiment of the present invention, an inner member includes an axially extending inner sleeve and a radially extending inner flange connected to the inner sleeve; the inner flange and the second central flange are at least partially arranged in an axially spaced and opposite mode to form an axial gap, and the axial connecting piece is connected to one of the inner flange and the second central flange and is in sliding fit with the other one of the inner flange and the second central flange; the inner sleeve is at least partially spaced from and arranged opposite to the second central flange in the radial direction to form a radial gap, the radial connecting piece is connected to one of the inner sleeve and the second central flange and is in sliding fit with the other, or the central sleeve is at least partially spaced from and arranged opposite to the inner flange in the radial direction to form a radial gap, and the radial connecting piece is connected to one of the central sleeve and the inner flange and is in sliding fit with the other.
According to one aspect of an embodiment of the present invention, the at least one first center flange is removably connected to the center hub; and/or at least one second central flange is detachably connected with the central sleeve; and/or at least one inner flange is detachably connected with the inner sleeve.
According to one aspect of an embodiment of the invention, the outer member includes an axially extending outer sleeve member and a radially extending outer flange connected to the outer sleeve member, the outer member being connected to the first center flange by the outer flange; in the axial direction, at least part of the outer flange and the inner flange are opposite and arranged at intervals to form an axial installation space, one of the outer flange and the inner flange which are oppositely arranged is provided with a magnetic pole, the other one of the outer flange and the inner flange is provided with a winding which is oppositely arranged with the magnetic pole, and the magnetic pole and the winding are positioned in the axial installation space.
According to an aspect of an embodiment of the present invention, the generator further comprises an axial spacer disposed in the axial mounting space and around the axis of the mounting shaft, the axial spacer being connected to one of the outer flange and the inner flange and being in sliding fit with the other.
In another aspect, an embodiment of the present invention provides a wind turbine generator system, including: a nacelle; one of the mounting shaft and the inner member of the generator is connected to the nacelle; the impeller comprises a hub and blades connected to the hub, and the hub is connected to the other of the mounting shaft and the inner member. According to an aspect of an embodiment of the present invention, the generator further includes an axial spacer disposed in the axial mounting space and around an axis of the mounting shaft, the axial spacer being connected to one of the outer flange and the inner flange and being friction-fitted to the other.
According to the generator and the wind generating set provided by the embodiment of the invention, the generator comprises the mounting shaft, the generating unit and the connecting assembly, the generating unit comprises the inner component and the outer component which are coaxially arranged, the outer component is connected with the mounting shaft, the inner component can be rotationally connected with the mounting shaft through the connecting assembly, further relative rotation between the inner component and the members can be realized, and as one of the inner component and the outer component is the rotor, and the other one is the stator, the generating requirement can be met when the inner component and the outer component rotate relatively. And because coupling assembling includes axial connector and radial connector, the axial connector sets up in axial clearance and radial connector and sets up in radial clearance and be connected with one of inner member and installation axle respectively and support each other with another, and because at least one of axial connector and radial connector is the axle bush structure, make the generator not only can bear axial force and radial power simultaneously, its axial bearing capacity and/or radial bearing capacity is better than prior art simultaneously, the better motor clearance who guarantees the generator, guarantee wind generating set's power generation benefit, can also reduce the weight of generator simultaneously, make it have a smaller size and lower cost.
Drawings
Features, advantages and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of a wind turbine generator system according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a generator according to an embodiment of the present invention;
FIG. 3 is a cross-sectional structural view of an inner member of one embodiment of the present invention;
FIG. 4 is a cross-sectional structural schematic of an axial connector of one embodiment of the present invention;
FIG. 5 is a cross-sectional structural schematic of a radial connector of one embodiment of the present invention;
FIG. 6 is a cross-sectional structural view of an outer member of an embodiment of the present invention;
FIG. 7 is a schematic view of a generator according to an embodiment of the present invention in use in a wind turbine generator system;
FIG. 8 is a schematic cross-sectional view of a generator according to another embodiment of the present invention;
FIG. 9 is a schematic view of a generator according to another embodiment of the present invention in a wind turbine;
FIG. 10 is a partial cross-sectional structural schematic view of a generator of yet another embodiment of the present invention;
FIG. 11 is a schematic view, partly in section, of a generator according to yet another embodiment of the invention;
FIG. 12 is a cross-sectional structural view of an axial connector according to another embodiment of the present invention;
FIG. 13 is a cross-sectional structural view of another embodiment of a radial connector.
Wherein:
100-a generator;
10-installing a shaft; 11-a central sleeve; 12 a-a first central flange; 12 b-a second central flange; 121-a first connection hole;
20-a power generating unit; 21-an inner member; 211-inner sleeve; 211 a-second connection hole; 212-inner flange; 22-an outer member; 221-an outer sleeve member; 222-an outer flange; 222 a-third connection hole;
30-a connecting assembly; 31-an axial connector; 311-axial bearing bush monomer; 32-a radial connector; 321-radial bearing bush monomers;
40-axial clearance; 50-radial clearance; 60-axial installation space; 70-axial spacers; 80-magnetic pole;
200-tower drum;
300-a nacelle;
400-an impeller; 401-a hub; 402-a blade;
x-axial direction; y-radial; mn-axis.
In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention. In the drawings and the following description, at least some well-known structures and techniques have not been shown to avoid unnecessarily obscuring the present invention; also, the dimensions of some of the structures may be exaggerated for clarity. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
The following description is given with the directional terms as shown in the drawings and is not intended to limit the specific structure of the present invention. In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as either a fixed connection, a removable connection, or an integral connection; can be directly connected or indirectly connected. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
For better understanding of the present invention, a generator and a wind turbine generator set according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 13.
Referring to fig. 1, fig. 1 shows a schematic structural diagram of a wind turbine generator system according to an embodiment of the invention.
The embodiment of the invention provides a wind generating set, which mainly comprises a tower 200, a cabin 300, an impeller 400 and a generator 100, wherein the cabin 300 is arranged above the tower 200, the generator 100 is connected between the cabin 300 and the impeller 400, the impeller 400 comprises a hub 401 and blades 402 connected with the hub 401, the generator 100 is connected between the cabin 300 and the hub 401, and when the wind generating set is in service, wind energy acting on the blades 402 can be transmitted to the generator 100 through the hub 401 and converted into electric energy through the generator 100 for use by electric facilities.
Referring to fig. 2, fig. 2 is a schematic cross-sectional view of a generator 100 according to an embodiment of the invention. In order to better meet the use requirement of the wind generating set, the embodiment of the invention further provides a novel generator 100, the generator 100 includes a mounting shaft 10, a generating unit 20 and a connecting assembly 30, the generating unit 20 is disposed on the mounting shaft 10, the generating unit 20 includes an inner member 21 and an outer member 22 which are coaxially disposed, one of the inner member 21 and the outer member 22 is a rotor and the other is a stator. The outer member 22 is connected to the mounting shaft 10 and the inner member 21 is located between the outer member 22 and the mounting shaft 10. The mounting shaft 10 is disposed at least partially opposite the inner member 21 in its axial direction X and defines an axial gap 40, and the mounting shaft 10 is disposed at least partially opposite the inner member 21 in its radial direction Y and defines a radial gap 50. The connecting assembly 30 is disposed between the mounting shaft 10 and the inner member 21, the inner member 21 is rotatably connected to the mounting shaft 10 through the connecting assembly 30, the connecting assembly 30 includes an axial connecting member 31 and a radial connecting member 32, the axial connecting member 31 is disposed in the axial gap 40 and is connected to one of the inner member 21 and the mounting shaft 10 and is abutted against the other, the radial connecting member 32 is disposed in the radial gap 50 and is connected to one of the inner member 21 and the mounting shaft 10 and is abutted against the other, wherein at least one of the axial connecting member 31 and the radial connecting member 32 is a bearing structure.
The generator 100 provided by the embodiment of the invention can meet the power generation requirement of the wind generating set, has better bearing capacity, and can ensure the stability of the air gap of the motor, thereby ensuring the power generation benefit of the wind generating set.
With continued reference to fig. 2, as an alternative embodiment, the mounting shaft 10 may include a central sleeve 11 extending in its axial direction X and first and second central flanges 12a, 12b connected to the central sleeve 11 and extending in a radial direction Y, with the outer member 22 connected to the first central flange 12a of the mounting shaft 10.
In one embodiment, the axial connector 31 may be detachably connected to one of the mounting shaft 10 and the inner member 21, for example, by a fastener such as a bolt, in order to facilitate replacement of the axial connector 31, and the axial connector 31 may be detachably connected to one of the second central flange 12b and the inner member 21. A radial gap 50 is formed between the second central flange 12b and the inner member 21 or between the central sleeve 11 and the inner member 21, and a radial connector 32 is disposed between the second central flange 12b and the inner member 21 and is detachably connected to one of the second central flange 12b and the inner member 21. The mounting shaft 10 is constructed as described above, and is simple in construction and facilitates engagement between the outer member 22 and the inner member 21.
In order to facilitate the arrangement of the central flanges 12, in some alternative examples, the outer circumferential surface of the central sleeve 11 may adopt a conical surface, the number of the first central flanges 12a may be one, the number of the second central flanges 12b may also be one, and the second central flanges 12b are spaced from the first central flanges 12a in the axial direction X, of course, the number of the second central flanges 12b may also be set according to requirements, and it may also be two or more, two or more second central flanges 12b may be spaced from each other in the axial direction X, and for better connection with the outer member 22 and cooperation with the inner member 21, alternatively, the extension length of the two or more second central flanges 12b in the radial direction Y may be the same or different, and the extension length of the first central flange 12a in the radial direction Y may be the same as or different from the extension length of each second central flange 12b in the radial direction ay. Meanwhile, in order to make the generator 100 more easily connected to the impeller 400, the nacelle 300, or the outer member 22, optionally, a first connection hole 121 extending in the axial direction X is provided on the first center flange 12a or the center sleeve 11, the number of the first connection holes 121 may be set as desired, and when there are a plurality of first connection holes 121, a plurality of first connection holes 121 may be provided in the first center flange 12a or the center sleeve 11 at intervals from each other along the circumferential direction of the mounting shaft 10.
Meanwhile, in order to facilitate the formation of the mounting shaft 10 and the disassembly and assembly of the generator 100, the first central flange 12a and/or the at least one second central flange 12b may be a separate structure from the central sleeve 11, and the first central flange 12a and/or the second central flange 12b may be connected to the central sleeve 11 by a fixed connection or a detachable connection, such as a welding connection or a detachable connection with a fastener.
Referring to fig. 2 and 3, fig. 3 is a schematic cross-sectional view of an inner member 21 according to an embodiment of the invention. As an alternative embodiment, the inner member 21 provided by the embodiment of the present invention includes an inner sleeve 211 extending along the axial direction X, and an inner flange 212 connected to the inner sleeve 211 and extending along the radial direction Y, wherein the inner flange 212 is at least partially spaced from and opposite to the second center flange 12b in the axial direction X and forms the axial gap 40, and the inner sleeve 211 is at least partially spaced from and opposite to the second center flange 12b in the radial direction Y and forms the radial gap 50.
In a specific implementation, the inner sleeve 211 may be provided with a second connection hole 211a extending along the axial direction X so as to be connected to the hub 401 or the nacelle 300, the number of the second connection holes 211a may be determined according to the connection strength, and when the number of the second connection holes 211a is plural, the second connection holes 211a may be provided in the inner sleeve 211 at intervals from each other along the circumferential direction of the mounting shaft 10.
The inner member 21 may specifically include an inner flange 212 extending in a radial direction Y towards the axis mn near the mounting shaft 10, which for ease of description will be referred to as a first inner flange, which may specifically be located between the hub 11 and the inner sleeve 211. The inner member 21 may also include an inner flange 212 extending in a radial direction Y away from the axis mn of the mounting shaft 10, also referred to as a second inner flange for ease of description, between the inner hub 211 and the outer member 22. In specific implementation, in order to satisfy the installation of axial connecting piece 31, it is optional, the quantity of inner flange 212 equally can be more than two, two or more inner flanges 212 can be at axial X and/or radial Y go up mutual interval setting, that is, it is optional, the quantity of first inner flange can be more than two, two or more first inner flanges can be along axial X mutual interval setting, the quantity of second inner flange equally can be more than two, two or more second inner flanges set up at axial X mutual interval, the quantity of first inner flange and second inner flange can be the same, also can be different, on radial Y, first inner flange and second inner flange can the one-to-one setting, also can crisscross the setting each other, as long as can satisfy the electricity generation requirement of generator 100 all can.
Meanwhile, in order to facilitate the molding of the inner member 21 and the disassembly and assembly of the generator 100, one or more first inner flanges may be integrated with the inner sleeve 211, and another or more first inner flanges may be separated from the inner sleeve 211. Optionally, one or more of the second inner flanges may be of an integral structure with the inner sleeve 211, and another or more of the second inner flanges may be of a split structure with the inner sleeve 211. In particular implementations, the at least one first inner flange and the inner sleeve 211 and the at least one second inner flange and the inner sleeve 211 may be fixedly connected or detachably connected, such as by welding or detachably connecting with fasteners.
Referring to fig. 2 to 4, fig. 4 is a schematic cross-sectional view illustrating an axial connection member 31 according to an embodiment of the present invention, and as an alternative, the axial connection member 31 may be a bearing bush structure, so that it can be in surface sliding contact with the mounting shaft 10 or the inner member 21 to bear higher axial force and bending moment load.
As an alternative embodiment, the axial connector 31 may include more than two axial bearing units 311, the more than two axial bearing units 311 are sequentially arranged around the axis mn of the mounting shaft 10, and two adjacent axial bearing units 311 are spaced apart from each other. The axial connecting piece 31 adopts a structural form of a plurality of axial bearing single bodies 311, so that the manufacturing difficulty of the axial connecting piece 31 is low, and compared with the rolling bearing structure adopted by the existing generator 100 in the prior art, the cost is reduced by times.
Alternatively, each axial bushing unit 311 included in each axial connecting member 31 may be detachably connected to and slidably engaged with one of the inner member 21 and the mounting shaft 10, and alternatively, each axial bushing unit 311 may be detachably connected to and slidably engaged with one of the inner flange 212 (first inner flange) of the inner member 21 and the second central flange 12b of the mounting shaft 10 by a fastener such as a bolt.
Through the arrangement, when one or more axial bearing bush single bodies 311 are damaged due to reasons such as abrasion, only the damaged one or more axial bearing bush single bodies 311 need to be replaced, the whole axial connecting piece 31 does not need to be replaced integrally, the maintenance cost is saved, meanwhile, the axial bearing bush single bodies can be replaced on the wind generating set at any time, and the hoisting cost of the set is saved.
Alternatively, the number of the axial connectors 31 included in the generator 100 according to each of the above embodiments of the present invention may be two or more, in this example, the number of the axial connectors 31 included in each of the power generation units 20 is illustrated as two, the two axial connectors 31 are spaced in the axial direction X, one of the axial connectors 31 is located in the axial gap 40 formed by one of the second central flanges 12b and the inner flange 212 and connected to one of the second central flange 12b and the inner flange 212, and the other one of the axial connectors abuts against and slides in frictional contact with each other, the other axial connector 31 is located in the axial gap 40 formed by the same second central flange 12b and the other inner flange 212 and connected to one of the central flange 12 and the inner flange 212, and the other one abuts against and slides in frictional contact with each other, and optionally, the two axial connectors 31 included in each of the power generation units 20 may be oppositely disposed on both sides of the same second central flange 12b in the axial direction X and clamped between the two adjacent inner flanges 212.
By limiting the number of the axial connecting members 31 to two or more, the axial X-bearing capacity of the generator 100 can be further improved, and thus the motor air gap between the rotor and the stator of the generator 100 can be better ensured.
Referring to fig. 2 to 5, fig. 5 is a schematic cross-sectional view of the radial connecting element 32 according to an embodiment of the invention. As an alternative embodiment, in order to better maintain the air gap between the rotor and the stator of the motor, the generator 100 according to the above embodiments of the present invention may also have a bearing bush structure as the radial connecting member 32, and the radial connecting member 32 may be detachably connected to one of the inner member 21 and the mounting shaft 10 and slidably engaged with the other.
By setting the radial connecting member 32 to be a bearing bush structure, the generator 100 can bear a larger radial force, the deformation probability of the inner member 21 and the outer member 22, i.e., the rotor and the stator, is reduced, the motor air gap of the generator 100 is controlled more accurately, and the cost, the weight and the generating efficiency of the generator 100 are further controlled. Similarly, the radial connecting member 32 is of a bearing bush structure, so that the radial connecting member can be in surface sliding contact with the other one of the inner member 21 and the mounting shaft 10, and the bearing capacity of the radial connecting member is improved by more than 100 times compared with the prior art under the same size.
With continued reference to fig. 2-5, in some alternative examples, the radial connector 32 may be disposed between the inner sleeve 211 and the second center flange 12b and connected to and slidably engaged with one of the inner sleeve 211 and the second center flange 12 b.
As an alternative embodiment, the radial connector 32 may include more than two radial bearing units 321, the more than two radial bearing units 321 are sequentially disposed around the axis mn of the mounting shaft 10, and two adjacent radial bearing units 321 are spaced apart from each other. The radial connecting element 32 adopts a structural form of a plurality of radial bearing bush single bodies 321, so that the manufacturing difficulty of the radial connecting element 32 is low, and compared with a rolling bearing structure adopted by the existing generator 100 in the prior art, the cost is reduced by times.
Every radial axle bush monomer 321 all can be dismantled with one of installation axle 10 and inner member 21 and be connected, radial connecting piece 32 adopts sectional type structure, when one of them or a plurality of radial axle bush monomer 321 damaged because of reasons such as wearing and tearing, only need to damage one or a plurality of radial axle bush monomer 321 change can, need not whole radial connecting piece 32 overall change, the maintenance cost has been practiced thrift, still can realize changing at any time on wind generating set simultaneously, the hoist and mount expense of unit has been saved.
As an alternative embodiment, the number of the radial connecting members 32 may be two or more, and two or more radial connecting members 32 may be spaced apart from each other in the axial direction X. By limiting the number of the radial connecting members 32 to be more than two, the more than two radial connecting members 32 can bear the radial force together, the radial bearing capacity requirement of the generator 100 can be met, the generator has higher radial bearing capacity, and meanwhile, the service life of each radial connecting member 32 can be prolonged.
Referring to fig. 2-6, fig. 6 is a schematic cross-sectional view of the outer member 22 according to the embodiment of the invention. In some alternative examples, the outer member 22 of the generator 100 provided by each of the above embodiments of the present invention may include an outer sleeve member 221 extending in the axial direction X and an outer flange 222 connected to the outer sleeve member 221 and extending in the radial direction Y, each of the outer flanges 222 extending in the radial direction Y toward the axis mn of the mounting shaft 10. The outer member 22 may be connected to the central flange 12 by its outer flange 222. In the axial direction X, at least a portion of the outer flange 222 is disposed opposite and spaced from the inner flange 212 (second inner flange) and forms an axial installation space 60, one of the outer flange 222 and the inner flange 212 disposed opposite to each other is provided with a magnetic pole 80, the other is provided with a winding (not shown) disposed opposite to the magnetic pole 80, and the magnetic pole 80 and the winding are located in the axial installation space 60, and in one example, the magnetic pole 80 may be disposed on the inner flange 212. Through the arrangement, the connection requirement between the generator and the installation shaft 10 can be met, and meanwhile, the generator 100 is integrally of a disc type power generation structure.
Of course, the arrangement of the magnetic poles 80 and the windings is not limited to the above-described form, as long as it is ensured that the magnetic poles 80 of one of the inner member 21 and the outer member 22 and the windings of the other of the inner member 21 and the outer member 22 are arranged to face each other in the axial direction X. The generator 100 in this form not only has the advantage of being able to bear higher load, but also has the advantages of being able to ensure that the generator has short axial dimension, light weight, small volume, compact structure, no loss of the excitation system, high efficiency, and the like.
When embodied. The number of the outer flanges 222 may be two or more, the two or more outer flanges 222 are spaced from each other in the axial direction X, one of the outer flanges 222 may be provided with a third connecting hole 222a so as to be connected to the mounting shaft 10, and optionally, the third connecting hole 222a may be disposed opposite to the first connecting hole 121 on the mounting shaft 10 and detachably connected to each other by a fastener.
Optionally, the outer flange 222 may be inserted between two adjacent inner flanges 212 in the radial direction Y and form an axial mounting space 60 with the two inner flanges 212, at least two or each axial mounting space 60 may be provided with a magnetic pole 80 and a winding, and on the basis of improving the power generation amount of the generator 100, the size of the generator 100 in the axial direction X may also be reduced, and the above and below mentioned magnetic pole 80 and winding located in the axial mounting space 60 mean that both are located at least partially in the mounting space 60.
As an alternative embodiment, with continued reference to fig. 2 to 6, the generator 100 further includes an axial isolation member 70, the axial isolation member 70 is disposed in the axial mounting space 60 and surrounds the axis mn of the mounting shaft 10, and the axial isolation member 70 can be connected to and slidably engaged with one of the outer flange 222 and the inner flange 212. Through setting up axial isolation piece 70, the relative position between inner flange 212 and the outward flange 222 of assurance that can be better, and then better assurance motor air gap for wind generating set has higher electricity generation benefit.
In specific implementation, the axial isolation member 70 may also adopt a bearing bush structure, which may include a plurality of axial isolation units, where the plurality of axial isolation units are arranged at intervals or spliced with each other around the axis mn of the installation shaft 10, and of course, the axial isolation member 70 may also be an integrated closed-loop structure arranged around the axis mn of the installation shaft 10, as long as it can better ensure the air gap of the motor.
Referring to fig. 7, fig. 7 is a diagram illustrating a usage state of the generator 100 in the wind turbine 100 set according to an embodiment of the present invention.
As shown in fig. 7, when the generator 100 provided by the embodiment of the present invention is applied to a wind turbine generator system, it may be connected to a hub 401 through an inner member 21, specifically, may be connected to the hub 401 through an inner sleeve 211, for example, a fastener may be disposed in a second connection hole 211a of the inner sleeve 211, so that the inner member 21 is integrally connected to the hub 401. Also, the generator 100 may be connected to the nacelle 300 via the mounting shaft 10, in particular may be connected to the nacelle 300 via the first center flange 12a, for example, a fastener may be provided in the first connection hole 121 of the first center flange 12a, such that the mounting shaft 10 is integrally connected to the nacelle 300. In this case, the inner member 21 is a rotor, the outer member 22 is a stator, and the entire generator 100 is an inner rotor generator. Under the influence of wind energy, the hub 401 of the impeller 400 rotates the inner member 21 relative to the outer member 22 and the mounting shaft 10 to convert the wind energy into electrical energy.
Of course, the generator 100 provided in the above embodiments of the present invention is not limited to the above arrangement in the wind generating set, and in some other examples, the mounting shaft 10 may be connected to the hub 401, the inner member 21 is connected to the nacelle 300, in this case, the inner member 21 is a stator, the outer member 22 is a rotor, and the generator 100 is an outer rotor generator as a whole, which can also meet the requirement of converting wind energy into electric energy.
Referring to fig. 8, fig. 8 shows a schematic cross-sectional structure of a generator 100 according to another embodiment of the present invention, it is understood that the generator 100 according to the embodiment of the present invention is not limited to the above embodiments, and as shown in fig. 8, the generator 100 according to the embodiment of the present invention is substantially the same as the generator 100 according to the above embodiments shown in fig. 2, except that the radial connector 32 of the generator 100 according to the embodiment of the present invention is disposed between the center sleeve 11 and the inner member 21, optionally, at least a portion of the center sleeve 11 is spaced from and opposite to the inner flange 212 (first inner flange) of the inner member 21 in the radial direction Y to form a radial gap 50, and the radial connector 32 may be connected to and slidably engaged with one of the center sleeve 11 and the inner flange 212.
In the present example, the number of the second center flanges 12b may be two, and both the second center flanges 12b may be detachably connected to the center hub 11. Optionally, in this example, the number of the first inner flanges and the number of the second inner flanges may be both one, and two adjacent axial connectors 31 may be oppositely disposed on two sides of the same first inner flange in the axial direction X and clamped between the two second central flanges 12 b.
Optionally, in order to better meet the installation and positioning requirements of the axial connecting member 31 and the radial connecting member 32, an axial installation groove, which is matched with the shape of the axial connecting member 31 and used for installing the axial connecting member 31, is optionally arranged on the first inner flange opposite to the axial connecting member 31 in the embodiment of the present invention, and a radial installation groove, which is matched with the shape of the radial connecting member 32 and used for installing the radial connecting member 32, is arranged on the first inner flange opposite to the radial connecting member 32.
Optionally, in this example, the pole 80 may be disposed on the outer flange 222. In addition, in order to better satisfy the connection between the outer member 22 and the mounting shaft 10, optionally, at least one outer flange 222 arranged on the outermost side of the outer member 22 in the axial direction X and close to the first central flange 12a of the mounting shaft 10 is stepped, and by the arrangement, not only can the connection requirement between the outer member 22 and the central flange 12 be better satisfied, but also the installation of the connection assembly 30 and the inner member 21 inside the outer member 22 can be avoided, and the performance of the generator 100 can be better optimized.
Referring to fig. 9, fig. 9 is a schematic view illustrating a use state of a generator 100 according to another embodiment of the present invention in a wind turbine generator set.
As shown in fig. 9, when the generator 100 provided by the embodiment of the present invention is applied to a wind turbine generator system, it may be connected to the nacelle 300 through the inner member 21, specifically may be connected to the nacelle 300 through the inner sleeve 211, for example, a fastener may be disposed in the second connection hole 211a of the inner sleeve 211, so that the inner member 21 is integrally connected to the nacelle 300, and may be connected to the hub 401 through the mounting shaft 10, specifically may be connected to the hub 401 through the first center flange 12a, for example, a fastener may be disposed in the first connection hole 121 of the first center flange 12a, so that the outer member 22 and the mounting shaft 10 are integrally connected to the hub 401. In this case, the inner member 21 is a stator, the outer member 22 is a rotor, and the entire generator 100 is an outer rotor generator. Under the action of wind energy, the hub 401 of the impeller 400 rotates the outer member 22 relative to the inner member 21 via the mounting shaft 10 to convert the wind energy into electric energy.
Of course, the generator 100 provided in the embodiment shown in fig. 8 is not limited to the above arrangement in the wind generating set, and in some other examples, the mounting shaft 10 may be connected to the nacelle 300, and the inner member 21 is connected to the hub 401, where the inner member 21 is a rotor, the outer member 22 is a stator, and the generator 100 is an inner rotor generator as a whole, and thus the requirement of converting wind energy into electric energy can also be met.
Referring to fig. 10 and 11 together, fig. 10 is a schematic partial sectional view of a generator 100 according to still another embodiment of the present invention, and fig. 11 is a schematic partial sectional view of the generator 100 according to still another embodiment of the present invention. In the above embodiments of the present invention, the generator 100 includes one power generation unit 20 as an example, and it is understood that the number of the power generation units 20 is not limited to one, and in some other examples, as shown in fig. 10 and 11, the number of the power generation units 20 may be two or more, the two or more power generation units 20 are sequentially spliced along the axial direction X, and at least one power generation unit 20 is connected to the mounting shaft 10.
Referring to fig. 10, the generator 100 according to the embodiment of the present invention has a structure substantially the same as the generator 100 according to each of the embodiments shown in fig. 2, except that the number of the power generation units 20 of the generator 100 according to the embodiment of the present invention is more than two, the more than two power generation units 20 are sequentially spliced along the axial direction X, and the outer member 22 of at least one power generation unit 20 is connected to the mounting shaft 10. Optionally, the outer member 22 that each power generation unit 20 splices each other can formula structure as an organic whole, and simultaneously, the inner member 21 that splices each other equally can formula structure as an organic whole, and the processing of being convenient for, and can be better satisfy with the be connected of installation axle 10 and the cooperation requirement to inner member 21 that can drive each power generation unit through wheel hub 401 and outer member 22 rotate relatively each other, can effectual improvement aerogenerator 100 group's power generation benefit.
Similarly, with continuing reference to fig. 11, the generator 100 according to the embodiment of the present invention is basically the same as the generator 100 according to each of the embodiments shown in fig. 8, except that the number of the power generation units 20 of the generator 100 according to the embodiment of the present invention is more than two, the more than two power generation units 20 are sequentially spliced along the axial direction X, and the outer member 22 of at least one power generation unit 20 is connected to the mounting shaft 10. Optionally, the outer member 22 of each power generation unit 20 that splices each other may be the integral type structure, and the inner member 21 of each other that splices may be the integral type structure equally, and the processing of being convenient for can be better satisfy with the connection and the cooperation requirement of installation axle 10 to the effectual power generation benefit that improves aerogenerator 100 group.
When the generator 100 shown in fig. 10 and 11 is applied to a wind turbine generator system, the mounting shaft 10 can be connected to one of the nacelle 300 and the hub 401, and the inner member 21 of the outermost power generation unit 20 is connected to the other of the nacelle 300 and the hub 401, so that the generator has higher load bearing capacity, the air gap of the generator of each power generation unit 20 is ensured, and the power generation rate of the wind turbine generator system can be increased by times.
It is understood that the plurality of axial bearing single units 311 of the bearing structure adopted by the axial connecting member 31 of the generator 100 according to the above embodiments of the present invention are not limited to being spaced apart from each other around the axis mn of the mounting shaft 10, and in some other examples, the plurality of axial bearing single units 311 may be sequentially spliced without being spaced apart from each other, which can also satisfy the connection and support requirements between the mounting shaft 10 and the inner member 21, and is easy to machine.
Referring to fig. 12, fig. 12 is a schematic structural diagram of an axial connector 31 according to another embodiment of the present invention. In some other examples, the bearing pad structure of the axial connecting member 31 is not limited to the structure including the plurality of axial bearing pad single bodies 311 when the machining and assembling conditions allow, and in some other examples, the axial connecting member 31 may be an integrated closed-loop structure disposed around the axis mn of the mounting shaft 10, which can also meet the use requirement of the generator 100.
It should be understood that the plurality of radial bearing monomers 321 of the bearing structure used in the radial connecting member 32 of the generator 100 according to the above embodiments of the present invention are not limited to be disposed at intervals around the axis mn of the mounting shaft 10, and in some other examples, the plurality of radial bearing monomers 321 may be sequentially spliced without intervals therebetween, which can also satisfy the requirements for connection and support between the mounting shaft 10 and the inner member 21, and is easy to machine.
Referring to fig. 13, fig. 13 is a schematic view of a radial connector 32 according to another embodiment of the present invention. Likewise, in some other examples, the bearing pad structure of the radial connecting element 32 is not limited to the structure including the plurality of radial bearing pad single units 321 when the machining and assembling conditions allow, and in some other examples, the radial connecting element 32 is an integrated closed-loop structure disposed around the axis mn of the mounting shaft 10, and can also meet the use requirements of the generator 100.
To sum up, the generator 100 according to the embodiment of the present invention includes the mounting shaft 10, the generating unit 20 and the connecting assembly 30, the generating unit 20 includes the inner member 21 and the outer member 22 coaxially disposed, the outer member 22 is connected to the mounting shaft 10, and the inner member 21 can be rotatably connected to the mounting shaft 10 through the connecting assembly 30, so as to be capable of rotating relative to the inner member and the outer member, and meanwhile, since one of the inner member 21 and the outer member 22 is a rotor and the other is a stator, the power generation requirement can be satisfied when the two rotate relative to each other.
And because the connection assembly 30 includes the axial connection member 31 and the radial connection member 32, the axial connection member 31 is disposed in the axial gap 40 and connected to one of the inner member 21 and the mounting shaft 10 and abutted against the other, the radial connection member 32 is disposed in the radial gap 50 and connected to one of the inner member 21 and the mounting shaft 10 and abutted against the other, and at least one of the axial connection member 31 and the radial connection member 32 is a bearing bush structure, so that the generator 100 can not only simultaneously bear the axial force and the radial force, but also has better axial bearing capacity and/or radial bearing capacity compared with the prior art, better ensures the motor gap of the generator 100, ensures the power generation benefit of the wind turbine 100 set, and can also reduce the weight of the generator 100, so that the generator has a smaller size and lower cost.
The wind turbine generator system provided by the embodiment of the present invention includes the generator 100 of each embodiment, and the axial connecting member 31 and/or the radial connecting member 32 of the generator 100 may both adopt a bearing bush structure, so that the generator 100 has a better load bearing capability, and the generator 100 may be directly connected to one of the nacelle 300 or the hub 401 through the inner member 21 (rotor or stator), thereby overcoming a technical barrier that the power generation requirement of the wind turbine generator 100 set can be realized only by simultaneously matching the moving shaft and the fixed shaft of the drive train in the conventional generator 100, reducing failure points in the wind turbine generator 100, improving the reliability and the transmission efficiency of the wind turbine generator 100, and simultaneously greatly reducing the size and the cost of the wind turbine generator on the basis of ensuring the power generation requirement, and improving the power generation benefit of the wind turbine generator 100 set.
It should be noted that the hub 401 and the nacelle 300 of the generator shown in the above figures are only schematic diagrams, and the hub 401 and the nacelle 300 connected to the generator 100 of different embodiments may be the same or different.
Moreover, it is understood that the application of the generator 100 provided by the embodiment of the present invention to a wind generating set is only an alternative implementation, but is not limited to the application only to the wind generating set, and it can also be used in other fields that require the generator to convert other forms of energy into electric energy, which is not limited to this.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (13)
1. An electrical generator (100), comprising:
a mounting shaft (10);
a power generation unit (20) provided to the mounting shaft (10), the power generation unit (20) including an inner member (21) and an outer member (22) coaxially provided, one of the inner member (21) and the outer member (22) being a rotor and the other being a stator, the outer member (22) being connected to the mounting shaft (10) through a first connection hole (121) extending in a self-axial direction (X), a fastener being provided in the first connection hole (121) to integrally connect the outer member (22) and the mounting shaft (10); the mounting shaft (10) forming an axial gap (40) in its own axial direction (X) with the inner member (21) and a radial gap (50) in its own radial direction (Y) with the inner member (21);
the connecting assembly (30) is arranged between the mounting shaft (10) and the inner member (21), the connecting assembly (30) comprises an axial connecting piece (31) arranged in the axial gap (40) and a radial connecting piece (32) arranged in the radial gap (50), the axial connecting piece (31) is connected with one of the inner member (21) and the mounting shaft (10) and is abutted against the other, the radial connecting piece (32) is connected with one of the inner member (21) and the mounting shaft (10) and is abutted against the other, and at least one of the axial connecting piece (31) and the radial connecting piece (32) is of a bearing bush structure.
2. The electrical generator (100) of claim 1, wherein the axial connector (31) is the bearing-bushing structure, the axial connector (31) being removably connected to one of the inner member (21) and the mounting shaft (10) and being a sliding fit with the other.
3. The electrical generator (100) of claim 2, characterized in that the axial connection (31) is an integral closed loop structure disposed around the axis of the mounting shaft (10);
or, the axial connecting piece (31) comprises more than two axial bearing bush single bodies (311), the more than two axial bearing bush single bodies (311) are sequentially arranged around the axis of the mounting shaft (10), and the two adjacent axial bearing bush single bodies (311) are spliced or spaced mutually.
4. The electrical generator (100) of claim 1, wherein the radial connector (32) is the bearing shell structure, the radial connector (32) being removably connected to one of the inner member (21) and the mounting shaft (10) and being a sliding fit with the other.
5. The generator (100) of claim 4, characterized in that the radial connection (32) is an integral closed loop structure disposed around the axis of the mounting shaft (10);
or, the radial connecting piece (32) comprises more than two radial bearing bush single bodies (321), the more than two radial bearing bush single bodies (321) are sequentially arranged around the axis of the mounting shaft (10), and two adjacent radial bearing bush single bodies (321) are spliced or spaced mutually.
6. The electrical generator (100) according to claim 1, characterized in that the number of the axial connectors (31) is more than two, the more than two axial connectors (31) being arranged at a distance from each other in the axial direction (X);
and/or the number of the radial connecting pieces (32) is more than two, and the more than two radial connecting pieces (32) are arranged at intervals in the axial direction (X).
7. The generator (100) of claim 1, wherein the number of the power generation units (20) is two or more, the two or more power generation units (20) are sequentially spliced in the axial direction (X), and the outer member (22) of at least one power generation unit (20) is connected to the mounting shaft (10).
8. The generator (100) according to any of the claims 1 to 7, characterized in that the mounting shaft (10) comprises a central sleeve (11) extending in the axial direction (X) and a first central flange (12 a) and a second central flange (12 b) connected to the central sleeve (11) and extending in the radial direction (Y), respectively, the outer member (22) being connected to the first central flange (12 a) of the mounting shaft (10);
the axial connection (31) is arranged between the second central flange (12 b) and the inner member (21), and the radial connection (32) is arranged between the second central flange (12 b) and the inner member (21) or between the central sleeve (11) and the inner member (21).
9. The electrical generator (100) of claim 8, characterized in that the inner member (21) comprises an inner sleeve (211) extending in the axial direction (X) and an inner flange (212) connected to the inner sleeve (211) and extending in the radial direction (Y);
the inner flange (212) is at least partially spaced from and opposite to the second central flange (12 b) in the axial direction (X) and forms the axial gap (40), and the axial connector (31) is connected to one of the inner flange (212) and the second central flange (12 b) and is in sliding fit with the other;
the inner sleeve (211) is at least partially spaced from and opposite the second central flange (12 b) in the radial direction (Y) and forms the radial gap (50), and the radial connector (32) is connected to and in sliding fit with one of the inner sleeve (211) and the second central flange (12 b); or, the central sleeve (11) and the inner flange (212) are at least partially arranged in the radial direction (Y) in a spaced and opposite mode and form the radial gap (50), and the radial connecting piece (32) is connected to one of the central sleeve (11) and the inner flange (212) and is in sliding fit with the other.
10. Generator (100) according to claim 9, characterized in that at least one of said first central flanges (12 a) is removably connected with said central sleeve (11);
and/or at least one of said second central flanges (12 b) is removably associated with said central sleeve (11);
and/or at least one inner flange (212) is detachably connected with the inner sleeve (211).
11. The electrical generator (100) of claim 9, characterized in that the outer member (22) comprises an outer sleeve member (221) extending in the axial direction (X) and an outer flange (222) connected to the outer sleeve member (221) and extending in the radial direction (Y), the outer member (22) being connected to the first central flange (12 a) by the outer flange (222);
in the axial direction (X), at least part of the outer flange (222) and the inner flange (212) are arranged opposite to each other at intervals to form an axial installation space (60), one of the outer flange (222) and the inner flange (212) which are arranged opposite to each other is provided with a magnetic pole (80), the other one of the outer flange (222) and the inner flange (212) is provided with a winding which is arranged opposite to the magnetic pole (80), and the magnetic pole (80) and the winding are positioned in the axial installation space (60).
12. The generator (100) of claim 11, further comprising an axial spacer (70), the axial spacer (70) being disposed in the axial mounting space (60) and around an axis of the mounting shaft (10), the axial spacer (70) being connected to and in sliding engagement with one of the outer flange (222) and the inner flange (212).
13. A wind turbine generator set, comprising:
a nacelle (300);
the generator (100) of any of claims 1 to 12, one of the mounting shaft (10) and the inner member (21) being connected with the nacelle (300);
an impeller (400) comprising a hub (401) and blades (402) connected to the hub (401), the hub (401) being connected to the other of the mounting shaft (10) and the inner member (21).
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| CN201910581654.0A CN112228279B (en) | 2019-06-30 | 2019-06-30 | Generator and wind generating set |
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| CN201910581654.0A CN112228279B (en) | 2019-06-30 | 2019-06-30 | Generator and wind generating set |
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| CN112228279B true CN112228279B (en) | 2023-03-03 |
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Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2561994Y (en) * | 2002-02-01 | 2003-07-23 | 张浩元 | High speed power unit with air bearing with high rotation accuracy |
| CN101054997A (en) * | 2007-04-26 | 2007-10-17 | 北京航空航天大学 | Permanent-magnetic biased axial magnetic bearing |
| CN101212150A (en) * | 2006-12-27 | 2008-07-02 | 财团法人工业技术研究院 | Dual air gap electromagnetic structure |
| CN101546929A (en) * | 2008-03-25 | 2009-09-30 | 通用电气公司 | Wind turbine direct drive airgap control method and system |
| EP2143944A1 (en) * | 2008-07-07 | 2010-01-13 | Siemens Aktiengesellschaft | Wind turbine |
| CN101771308A (en) * | 2008-12-31 | 2010-07-07 | 张玉宝 | Magnetic levitation rotor support system, magnetic levitation bearing and magnetic biasing weight reducing device |
| CN102182624A (en) * | 2011-04-02 | 2011-09-14 | 南京工业大学 | Magnetic suspension horizontal shaft direct-driving type wind driven generator with five freedom degrees |
| CN102395781A (en) * | 2009-04-14 | 2012-03-28 | 西门子公司 | Wind energy plant and drive device for adjusting a rotor blade |
| CN202334210U (en) * | 2011-11-23 | 2012-07-11 | 郑州新大方电力能源有限公司 | Double-rotor monopole permanent magnet brushless direct current (DC) motor |
| CN102678320A (en) * | 2011-03-10 | 2012-09-19 | 深圳市安托山特种机电有限公司 | Generator and auxiliary supporting structure thereof |
| CN102820728A (en) * | 2011-06-10 | 2012-12-12 | 西门子公司 | Generator for a wind turbine |
| CN104121287A (en) * | 2013-04-26 | 2014-10-29 | 西门子公司 | Arrangement controlling clearance of sliding bearing |
| JP2015047034A (en) * | 2013-08-29 | 2015-03-12 | 株式会社東芝 | Axial gap type power generator |
| CN105298754A (en) * | 2015-11-13 | 2016-02-03 | 北京金风科创风电设备有限公司 | Wind driven generator and wind driven generator set |
| RO131135A2 (en) * | 2014-11-10 | 2016-05-30 | Universitatea "Politehnica" Din Bucureşti | Wind hybrid generator with radial magnetic flux and external rotor |
| CN105703603A (en) * | 2016-04-13 | 2016-06-22 | 李新勇 | Permanent magnet coupling speed regulation apparatus with adjustable axial meshed area |
| CN106150918A (en) * | 2016-08-26 | 2016-11-23 | 刘泉 | A kind of direct-drive aerogenerator group |
| CN106895857A (en) * | 2015-12-10 | 2017-06-27 | 斯凯孚磁性机械技术公司 | Detect the device of the axial location of armature spindle and its application on rotating machinery |
| CN108019316A (en) * | 2018-01-22 | 2018-05-11 | 曲阜师范大学 | The magnetic suspension wind yaw system of main passive coordinated regulation |
| CN108696078A (en) * | 2018-06-30 | 2018-10-23 | 淮阴工学院 | A kind of cage type asynchronous spindle motor of magnetic suspension |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7180204B2 (en) * | 2005-01-07 | 2007-02-20 | General Electric Company | Method and apparatus for wind turbine air gap control |
| CN108757351B (en) * | 2018-03-29 | 2020-05-26 | 北京金风科创风电设备有限公司 | Direct-drive wind generating set |
| CN109167500A (en) * | 2018-09-19 | 2019-01-08 | 北京金风科创风电设备有限公司 | Generator assembly, generator, wind generating set and power generation method |
-
2019
- 2019-06-30 CN CN201910581654.0A patent/CN112228279B/en active Active
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2561994Y (en) * | 2002-02-01 | 2003-07-23 | 张浩元 | High speed power unit with air bearing with high rotation accuracy |
| CN101212150A (en) * | 2006-12-27 | 2008-07-02 | 财团法人工业技术研究院 | Dual air gap electromagnetic structure |
| CN101054997A (en) * | 2007-04-26 | 2007-10-17 | 北京航空航天大学 | Permanent-magnetic biased axial magnetic bearing |
| CN101546929A (en) * | 2008-03-25 | 2009-09-30 | 通用电气公司 | Wind turbine direct drive airgap control method and system |
| EP2143944A1 (en) * | 2008-07-07 | 2010-01-13 | Siemens Aktiengesellschaft | Wind turbine |
| CN101771308A (en) * | 2008-12-31 | 2010-07-07 | 张玉宝 | Magnetic levitation rotor support system, magnetic levitation bearing and magnetic biasing weight reducing device |
| CN102395781A (en) * | 2009-04-14 | 2012-03-28 | 西门子公司 | Wind energy plant and drive device for adjusting a rotor blade |
| CN102678320A (en) * | 2011-03-10 | 2012-09-19 | 深圳市安托山特种机电有限公司 | Generator and auxiliary supporting structure thereof |
| CN102182624A (en) * | 2011-04-02 | 2011-09-14 | 南京工业大学 | Magnetic suspension horizontal shaft direct-driving type wind driven generator with five freedom degrees |
| CN102820728A (en) * | 2011-06-10 | 2012-12-12 | 西门子公司 | Generator for a wind turbine |
| CN202334210U (en) * | 2011-11-23 | 2012-07-11 | 郑州新大方电力能源有限公司 | Double-rotor monopole permanent magnet brushless direct current (DC) motor |
| CN104121287A (en) * | 2013-04-26 | 2014-10-29 | 西门子公司 | Arrangement controlling clearance of sliding bearing |
| JP2015047034A (en) * | 2013-08-29 | 2015-03-12 | 株式会社東芝 | Axial gap type power generator |
| RO131135A2 (en) * | 2014-11-10 | 2016-05-30 | Universitatea "Politehnica" Din Bucureşti | Wind hybrid generator with radial magnetic flux and external rotor |
| CN105298754A (en) * | 2015-11-13 | 2016-02-03 | 北京金风科创风电设备有限公司 | Wind driven generator and wind driven generator set |
| CN106895857A (en) * | 2015-12-10 | 2017-06-27 | 斯凯孚磁性机械技术公司 | Detect the device of the axial location of armature spindle and its application on rotating machinery |
| CN105703603A (en) * | 2016-04-13 | 2016-06-22 | 李新勇 | Permanent magnet coupling speed regulation apparatus with adjustable axial meshed area |
| CN106150918A (en) * | 2016-08-26 | 2016-11-23 | 刘泉 | A kind of direct-drive aerogenerator group |
| CN108019316A (en) * | 2018-01-22 | 2018-05-11 | 曲阜师范大学 | The magnetic suspension wind yaw system of main passive coordinated regulation |
| CN108696078A (en) * | 2018-06-30 | 2018-10-23 | 淮阴工学院 | A kind of cage type asynchronous spindle motor of magnetic suspension |
Non-Patent Citations (1)
| Title |
|---|
| 磁悬浮风力发电机转子系统的研究;肖林京等;《机械设计与制造》;20100608(第06期);全文 * |
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