CN208142948U - Rotor and wind power generating set - Google Patents
Rotor and wind power generating set Download PDFInfo
- Publication number
- CN208142948U CN208142948U CN201820657155.6U CN201820657155U CN208142948U CN 208142948 U CN208142948 U CN 208142948U CN 201820657155 U CN201820657155 U CN 201820657155U CN 208142948 U CN208142948 U CN 208142948U
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- CN
- China
- Prior art keywords
- rotor
- stage portion
- ring
- rotor rim
- rim
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 51
- 238000000465 moulding Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 8
- 230000036316 preload Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 241000239290 Araneae Species 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a kind of rotor and wind power generating sets, the rotor includes rotor rim, the stage portion being distributed in a ring is provided on the outer wall of the rotor rim, the rotor further includes the rigidity stiffening device in a ring being circumferentially mounted in the stage portion, and the rigidity stiffening device can be tightly attached in the stage portion.By adding reinforcing ring on the outer wall of rotor rim, the intensity of rotor rim can be significantly improved from outside, rotor rim is avoided and deforms during production, transport, erection stage.
Description
Technical field
The utility model relates to rotor fields, specifically, the utility model relates to a kind of structural strengths to be mentioned
High rotor and wind power generating set.
Background technique
Permanent magnet direct-drive generator is made of stator and rotor, and usually stator is fixed on the center of generator, and rotor encloses
It is rotated around stator central axis.Rotor includes the composition such as rotor field spider, the permanent magnet being fixed thereon and end casing.Rotor turns
Sub- magnetic yoke is large-diameter thin-wall piece, and rigidity is weaker, easily deforms in machining, transport, installation.The diameter of rotor is got over
Greatly, opposite cost is lower, but is limited by the limitation of conveyor width, and diameter generally requires to control in certain size.
Therefore, during each stage in the pre-assembly, need to reinforce the rigidity of rotor.Currently, can be by increasing rotor
The wall thickness of magnetic yoke improves intensity, but increases rotor weight and cost in this way.Furthermore it is also possible in the outer wall of rotor rim
The structures such as upper welding reinforcing rib, but these reinforcing rib structures occupy certain size radially, so that motor outer diameter is set
Meter size is restricted, and is affected rotor performance and is increased cost.
Utility model content
The purpose of this utility model is to provide a kind of rotors, can be improved the structural strength of rotor rim, avoid rotor
Magnetic yoke deforms during production, transport and installation etc., and reduces transport installation cost.
The another object of the utility model is to provide a kind of wind power generating set.
To achieve the goals above, one side according to the present utility model, provides a kind of rotor, and the rotor includes turning
Sub- magnetic yoke, is provided with the stage portion being distributed in a ring on the outer wall of the rotor rim, and the rotor further includes circumferentially pacifying
Rigidity stiffening device in a ring in the stage portion, the rigidity stiffening device can be tightly attached to the stage portion
On.
Optionally, the axial width of the stage portion is greater than the axial width of the rigidity stiffening device.
Optionally, the stage portion is multiple in the quantity of complete continuous annular or the stage portion, and in institute
It states circumferentially distributed at interval on the outer wall of rotor rim.
Optionally, the stage portion and the rotor rim be integrally formed or the stage portion be fixed to it is described
In rotor rim.
Optionally, the rigidity stiffening device includes reinforcing ring, and the reinforcing ring includes constituting annular with being sequentially connected
Multiple subring sections, at least a pair of adjacent subring section in the multiple subring section are connected by that can pre-tighten with dismountable mode
It connects, the inner surface of the outer surface of the stage portion and the reinforcing ring is refined to predetermined smoothness.
Optionally, connected each other between the facing end of at least a pair of adjacent subring section by fastening bolt
It connects.
Optionally, except the facing end except through fastening bolt connection in the multiple subring section,
It is connected to each other between other facing ends by pin shaft.
Optionally, the cross section of the reinforcing ring is in polygon.
Optionally, the reinforcing ring is formed by steel plate.
Optionally, the stage portion is welded in the case where allowing has certain gap between the stage portion.
Another aspect according to the present utility model additionally provides a kind of wind power generating set, the wind power generating set packet
Generator is included, the generator includes above-mentioned rotor.
By adding rigidity stiffening device on the outer wall of rotor rim, the strong of rotor rim can be significantly improved from outside
Degree, avoids rotor rim and deforms during production, transport, erection stage.In addition, reinforcing ring can also by pre-tighten and
Dismountable mode is assembled, so as to which reinforcing ring to be easily assembled to rotor magnetic in the case where meeting and pre-tightening and require
It can facilitate on yoke and from rotor rim and disassemble reinforcing ring, simplify transport, assembly process, improve operation effect
Rate, and can be realized repetitive cycling use, reduce transport manufacturing cost.In addition, the size due to reinforcing ring itself is smaller, energy
Enough maximizations that rotor diameter size is realized in the case where realizing rotor rim rigidity and reinforcing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of traditional rotor；
Fig. 2 is the assembling schematic diagram of the rigidity stiffening device of embodiment according to the present utility model；
Fig. 3 is the assembling schematic diagram of the rigidity stiffening device of another embodiment according to the present utility model；
Fig. 4 is the partial enlargement diagram of reinforcing ring shown in Fig. 2；
Fig. 5 is the partial enlargement diagram of the rotor rim of embodiment according to the present utility model；
Fig. 6 is the partial enlargement diagram of the rotor rim of another embodiment according to the present utility model；
Fig. 7 and Fig. 8 is the partial schematic diagram of the subring section of embodiment according to the present utility model；
Fig. 9 is the structural schematic diagram of the preload plate of embodiment according to the present utility model.
Description of symbols：
10：Rotor, 11：Rotor rim, 12：Magnetic pole assembly, 13：Support construction, 14：Stage portion, 16：End cap, 20：Reinforce
Ring, 21：Outer ring plate, 22：Annular plate, 23：Intermediate annular plate, 24：Wlding, 25：Pin hole, 26：Preload plate, 27：Threaded hole,
29：Lug, 31：Subring section.
Specific embodiment
In order to enable those skilled in the art to better understand the utility model, with reference to the accompanying drawing to the utility model
Specific embodiment be described in detail.
Referring to Fig.1, the rotor 10 on large-size machine generally can be cylindrical, including rotor rim 11, setting are in rotor
Magnetic pole assembly 12 in magnetic yoke 11 and the end cap 16 and support construction 13 for being separately positioned on 11 both ends of rotor rim.Rotor rim
11 can be large-diameter thin-wall piece, have certain intensity, during production, transport or suit, end cap 16 and support construction
13 are not assembled in rotor rim 11, and refill and be fitted in rotor rim 11 after transport and suit.
As shown in Fig. 2, according to rigidity stiffening device provided by the utility model generally in an orbiting manner assembly or
It is sleeved on the outer wall of rotor rim 11, and relative to the fixation of rotor rim 11 or with certain preload degree, to mention
The rigidity of high rotor magnetic yoke 11.Rigidity stiffening device may include reinforcing ring 20, which can circumferentially assemble from outside
On the periphery of rotor rim 11.Reinforcing ring 20 may include multiple subring sections 31, these subring sections 31 circumferentially can successively connect
It is connected together and constitutes ring-type.For example, reinforcing ring 20 can be connected in sequence by three or four or more subring sections 31, often
A sub- ring segment 31 can be generally in arc-shaped, and length can be substantially equal.
The cross section of reinforcing ring 20 can be in any suitable shape, as long as can be improved rotor with certain intensity
The structural strength of magnetic yoke 11.For example, the cross section of reinforcing ring 20 can triangular in shape, quadrangle, I-shaped, inverted T font etc.
Multilateral shape.Reinforcing ring 20 can be generally by being connected with each other such that section is constituted in multiple annular slabs of multilateral shape.
In one embodiment, as shown in Fig. 2, the cross section of reinforcing ring 20 can be in four side box-shapeds, generally may include with
Annular plate 22 that rotor rim 11 connects and is connected to annular at outer ring plate 21 generally parallel with annular plate 22
Two intermediate annular plates 23 between plate 22 and outer ring plate 21, annular plate 22 and outer ring plate 21, which can be essentially perpendicular to, to be turned
The radial direction of son 10, and intermediate annular plate 23 can radially extending substantially along rotor 10.In the axial direction of rotor rim 11, outside
The width of annular slab 21 can greater than, equal to or less than annular plate 22 width.
Reinforcing ring 20 can be welded to each other by steel plate, or can also be welded to one another using the metal plate of other materials
It forms, as long as structural strength is enough.That is, outer ring plate 21, annular plate 22 and intermediate annular plate 23 are ok
It is steel plate, these steel plates can be welded to each other and constitute reinforcing ring.Other than welding, reinforcing ring 20 can also integrally be cast
Cause type.
For multiple subring sections 31, may be present between at least a pair of adjacent subring section 31 by the way of it can pre-tighten and/
Or dismountable mode connects, to can adjust the tensioning degree to rotor rim 11 in some cases, can also apply
In the case where enough pretightning forces, the structural strength of rotor rim 11 is improved, can also realize convenient assembly or disassembly.
In specific assembly, the bottom of reinforcing ring 20 may be welded to the outer wall of rotor rim 11, for example, reinforcing ring 20 can be
Allow that there is the case where certain interval between the outer wall (for example, outer surface of stage portion described below 14) of rotor rim 11
Rotor rim 11 is welded to by wlding 24 down.For this purpose, the diameter of reinforcing ring 20 is greater than the diameter of rotor rim 11, to reinforce
Ring 20 can be fit easily on the outer wall of rotor rim 11, and due to after assembly, existing between the two centainly
Gap, thus it is not high to the requirement on machining accuracy on the surface facing with each other of the two, as long as reinforcing ring 20 can be sleeved on rotor magnetic
It on yoke 11 and realizes that the two is reliable fixed, that is, the structural strength of rotor rim 11 can be improved.
It in this case,, can be first with wlding 24 by the in period of assembly when using 20 form of segmented reinforcing ring
One sub- ring segment 31 is welded in rotor rim 11, and one end of second sub- ring segment 31 is then first coupled to first sub- ring segment
It recycles wlding 24 that second sub- ring segment 31 is welded in rotor rim 11 after on 31, and successively welds in a similar way
Other subring sections 31.For the last one subring section 31, first the both ends of the subring section 31 can be connected respectively to adjacent thereto
Two sub- ring segments 31 (that is, subring section 31 of first sub- ring segment 31 and a upper installation), finally the subring section 31 is welded again
It is connected to rotor rim 11.
In above-mentioned welding process, the bottom of each subring section 31 can completely be welded to rotor rim 11, can also adopt
Certain parts on bottom are welded to rotor rim 11 with the mode of spot welding.
In addition, reinforcing ring 20 can also be installed using other modes other than welding.For example, can according to making plus
Strong ring 20 is assembled with the mode that the outer wall of rotor rim 11 directly contacts, as shown in Figure 3.In this case, using adding
Strong ring 20 directly improves the structural strength of rotor rim 11 from outside banding rotor rim 11.Accordingly, it is desirable to make to reinforce
Contact area between ring 20 and rotor rim 11 is the bigger the better.For this purpose, can be between assembly, to reinforcing ring 20 and rotor rim
11 are machined out, for example, can annular plate 22 to reinforcing ring 20 the bottom surface contacted with rotor rim 11 and
The outer surface of rotor rim 11 is finished, so that they have certain smoothness or lesser roughness,
So that the two is snugly into each other most possibly together.
When specific operation, can at least assembly of outer surface of the inner surface to reinforcing ring 20 and rotor rim 11 reinforce
The part of ring 20 is finished.In one embodiment, can the surface contacted with rotor rim 11 to reinforcing ring 20 and
The entire outer surface of rotor rim 11 is finished.Alternatively, can also be only to the ring for assembling reinforcing ring 20 of rotor rim 11
Shape surface portion is finished, to can shorten machining period for processing entire outer surface and reduce cost.
For the other surfaces part of rotor rim 11, roughing can be only carried out.
In another embodiment, it can also be processed on the annular surface part of the assembly reinforcing ring 20 of rotor rim 11
The stage portion 14 of annular spread out, the stage portion 14 can have thickness appropriate (thickness be along radially set), for example,
The thickness of stage portion 14 can be in 1-10mm, or can be set as it according to the actual size and live traffic condition of rotor
His size, for example, also greater than 10mm, but can not be configured excessive, to prevent from exceedingly influencing rotor rim 11
The radial dimension of body.In this way, reinforcing ring 20 can be fit directly into stage portion 14.The axial width of stage portion 14, which may be slightly larger than, to be added
The axial width of the annular plate 22 of strong ring 20, so that the entire bottom surface of annular plate 22 can be fastened to platform completely
In rank portion 14.In this case, when being machined out, can the outer surface only to stage portion 14 finish.
Stage portion 14 can be integrally formed with rotor rim 11, or can also individually process stage portion 14, then
On the outer wall for stage portion 14 being welded or being otherwise fixedly secured to rotor rim 11.
In addition, stage portion 14 can be complete continuous ring form.Stage portion 14 can also use segmented version,
That is, being formed with multiple stage portions 14 on the annular surface part of rotor rim 11, adjacent stage portion 14 can separate certain
Distance ground arrangement, each stage portion can in a rectangular parallelepiped shape or strip or other any suitable shapes.Multiple stage portions 14
It can circumferentially be evenly distributed, the distance that adjacent stage portion 14 separates can be determined suitably, it is ensured that reinforcing ring 20 is being assemblied in
Uniform and enough active forces can be applied after in multiple stage portions to rotor rim 11.In this way, relative to complete annular
For stage portion, the machining of the stage portion of segmented is simpler and time saving, more can be improved processing efficiency.
When using multiple stage portions 14, the thickness radially of each stage portion 14 can be substantially equal, along
The length of circumferential direction can be different.For example, some stage portions 14 can be in longer strip arc on the outer wall of rotor rim 11
Shape, and some other stage portion 14 can be in shorter strip arcuation.
For segmented reinforcing ring 20, bolt fastening or pin shaft etc. is can be used in the connection between adjacent subring section 31
Various suitable modes carry out.For example, as shown in figure 4, such as fastening bolt and nut can be used between adjacent subring section 31
Pre-tighten and be attached with removably.When using the firmly beforehand means of fastening bolt and nut, for being connected one
The subring section 31 risen, be connected or facing end on can be further provided with and pre-tighten plate 26, can open on the preload plate 26
Equipped with multiple threaded holes 27.Pre-tightening plate 26 can specifically be fixed on the intermediate annular plate 23 of 31 end of subring section.Carry out
, can be first aligned with each other by the preload plate 26 of two sub- ring segments 31 when assembly, bolt is then inserted into threaded hole 27, and use spiral shell
Mother pre-tightens to predetermined extent.
Other than by the way of fastening bolt preload, pin shaft connection side can also be used for other subring sections
Formula.As shown in fig. 7, for the subring section 31 using pin shaft connection, on end can attaching clamp 29, can be opened up on lug 29
There is pin hole 25.It, can be first by two end alignments to be connected, that is, make about 25 pin hole on two lugs when being assembled
Alignment, is then inserted into pin shaft into pin hole 25, and can be used detent ring or other locating pieces by pin shaft lock in the position with
Prevent pin shaft from falling off from pin hole 25.Because pin shaft allows that relative rotation fortune occurs between adjacent subring section 31 when connecting
It is dynamic, therefore, easily facilitate the assembly of subring section 31.
It, can also and preload easy to disassemble using other other than using the connection type of bolt fastening and pin shaft above
Mode connect.Or directly adjacent subring section can also be welded together.
In addition, multiple reinforcing rings 20 can be axially assembled in rotor rim 11, in each different position
The structural strength for reinforcing rotor rim 11 is set, prevents to deform.
By the external mounting reinforcing ring 20 in rotor rim 11, can significantly improve rotor rim 11 production, transport,
Structural strength during each stages such as installation is effectively prevented the deformation of rotor rim 11.Reinforcing ring 20 can also be by using pre-
Tight or dismountable mode is assembled, and so as to adjust reinforcing ring 20 to the tensioning degree of rotor rim 11, and can be facilitated
Ground is disassembled from rotor rim 11 in the case where not destroying the outer wall profile of rotor rim 11, and be can be realized repetition and followed
Ring uses, so as to reduce manufacture, transportation cost.In addition, can realized since the size of reinforcing ring 20 itself is smaller
11 rigidity of rotor rim realizes the maximization of rotor diameter size in the case where reinforcing.Reinforcing ring provided by the utility model
Assembly method is more, can neatly select suitable matching way to be installed when applying at the scene.
Specific embodiment of the present utility model is described in detail above, although having show and described some realities
Apply example, it will be understood by those skilled in the art that do not depart from defined by the claims and their equivalents it is practical
In the case where novel principle and spirit, it can modify to these embodiments and perfect, these modifications and improve also should be
In the protection scope of the utility model.
Claims (10)
1. a kind of rotor, the rotor (10) includes rotor rim (11), which is characterized in that in the outer of the rotor rim (11)
The stage portion (14) being distributed in a ring is provided on wall, the rotor (10) further includes circumferentially being mounted on the stage portion (14)
On rigidity stiffening device in a ring, the rigidity stiffening device can be tightly attached on the stage portion (14).
2. rotor according to claim 1, which is characterized in that the axial width of the stage portion (14) is greater than the rigidity
The axial width of stiffening device.
3. rotor according to claim 1, which is characterized in that the stage portion (14) is in complete continuous annular, or
The quantity of stage portion described in person (14) is multiple and circumferentially distributed at interval on the outer wall of the rotor rim (11).
4. rotor according to claim 1, which is characterized in that the stage portion (14) and the rotor rim (11) one
Ground molding or the stage portion (14) are fixed on the rotor rim (11).
5. rotor according to claim 1, which is characterized in that the rigidity stiffening device includes reinforcing ring (20), described
Reinforcing ring (20) includes constitute annular multiple subring sections (31) with being sequentially connected, and at least one in the multiple subring section (31)
Adjacent subring section (31) is connected by that can pre-tighten with dismountable mode, the outer surface of the stage portion (14) adds with described
The inner surface of strong ring (20) is refined to predetermined smoothness.
6. rotor according to claim 5, which is characterized in that at least a pair of adjacent subring section (31) it is facing
End between be connected to each other by fastening bolt.
7. rotor according to claim 6, which is characterized in that in the multiple subring section (31) except through described tight
Except the facing end of fixing bolt connection, it is connected to each other between other facing ends by pin shaft.
8. rotor according to claim 5, which is characterized in that the cross section of the reinforcing ring (20) is in polygon.
9. rotor according to claim 5, which is characterized in that the reinforcing ring (20) is allowing and the stage portion (14)
Between have certain gap in the case where be welded to the stage portion (14).
10. a kind of wind power generating set, which is characterized in that the wind power generating set includes generator, and the generator includes
Rotor as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820657155.6U CN208142948U (en) | 2018-05-03 | 2018-05-03 | Rotor and wind power generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820657155.6U CN208142948U (en) | 2018-05-03 | 2018-05-03 | Rotor and wind power generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208142948U true CN208142948U (en) | 2018-11-23 |
Family
ID=64312162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820657155.6U Active CN208142948U (en) | 2018-05-03 | 2018-05-03 | Rotor and wind power generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208142948U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019144844A1 (en) * | 2018-01-26 | 2019-08-01 | 北京金风科创风电设备有限公司 | Rotor, motor, reinforcement ring tool and mounting method therefor |
| CN112953053A (en) * | 2019-12-11 | 2021-06-11 | 新疆金风科技股份有限公司 | Rotor reinforcing device and rotor sleeving method |
-
2018
- 2018-05-03 CN CN201820657155.6U patent/CN208142948U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019144844A1 (en) * | 2018-01-26 | 2019-08-01 | 北京金风科创风电设备有限公司 | Rotor, motor, reinforcement ring tool and mounting method therefor |
| EP3637586A4 (en) * | 2018-01-26 | 2020-07-29 | Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd. | Rotor, motor, reinforcement ring tool and mounting method therefor |
| US11502565B2 (en) | 2018-01-26 | 2022-11-15 | Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd. | Rotor, motor, reinforcement ring tool and mounting method therefor |
| CN112953053A (en) * | 2019-12-11 | 2021-06-11 | 新疆金风科技股份有限公司 | Rotor reinforcing device and rotor sleeving method |
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