CN220395904U - Wind power transmission system with permanent magnet bearing and wind power generation device - Google Patents
Wind power transmission system with permanent magnet bearing and wind power generation device Download PDFInfo
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- CN220395904U CN220395904U CN202321648513.4U CN202321648513U CN220395904U CN 220395904 U CN220395904 U CN 220395904U CN 202321648513 U CN202321648513 U CN 202321648513U CN 220395904 U CN220395904 U CN 220395904U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 77
- 238000010248 power generation Methods 0.000 title description 12
- 238000012546 transfer Methods 0.000 claims description 23
- 210000004907 gland Anatomy 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 8
- 230000033001 locomotion Effects 0.000 abstract description 8
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 230000007246 mechanism Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
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Abstract
The utility model relates to a wind power transmission system with a permanent magnet bearing, comprising: the transmission gear set is used for being connected with at least two generators; the central hub is coaxially arranged with the transmission gear set and is fixedly connected with the permanent magnet bearing assembly coaxially; through setting up coupling assembling between central hub and drive gear group, realize the synchronous rotation of two parts under the condition that central hub has axial displacement with the initiative gear group for under the radial pivoted condition of central hub, drive gear group together radially rotates, the axial displacement that produces permanent magnet bearing assembly's main shaft and central hub realizes through coupling assembling and central hub relative movement, and, drive gear group is fixed for the generator, can not influence drive gear group's normal work under the circumstances of central hub axial displacement.
Description
Technical Field
The utility model relates to the technical field of wind power generation equipment, in particular to a wind power transmission system with a permanent magnet bearing and a wind power generation device.
Background
While the magnetic bearing is used as a spindle bearing and needs to have certain axial movement when resisting axial force, the prior patent application number 202221874000.0 discloses a magnetic bearing system capable of adapting to axial displacement, and a mechanism for providing axial displacement is a link mechanism, wherein the link mechanism is influenced by rotation friction, and part of axial force is still transmitted to subsequent parts while transmitting torque, so that the magnetic bearing system is not applicable to transfer case occasions.
Because the permanent magnet bearing system needs a certain axial displacement when resisting the axial force, the shaft of the traditional transfer case cannot axially displace, and therefore the permanent magnet bearing system cannot be suitable for a multi-stage wind power generation system.
Disclosure of Invention
Technical scheme (one)
To achieve the above object, a first aspect of the present utility model provides a wind power transmission system with a permanent magnet bearing.
A second aspect of the utility model provides a wind power plant.
In view of this, a wind power transmission system with a permanent magnet bearing is proposed according to a first aspect of an embodiment of the present application, comprising:
the transmission gear set is used for being connected with at least two generators;
the central hub is coaxially arranged with the transmission gear set and is fixedly connected with the permanent magnet bearing assembly coaxially;
the connecting assembly is arranged between the central hub and the transmission gear set and is used for enabling the transmission gear set to rotate radially together under the condition that the central hub rotates radially.
Optionally, the drive gear set comprises:
the driving gear is internally provided with a first bearing space for bearing the central hub and is used for axially moving the central hub in the first bearing space;
the high-speed gear is meshed and connected with the driving gear at equal intervals in a ring shape and is used for being connected with a generator.
Optionally, the connection assembly comprises:
the torsion bar is arranged on the driving gear, and the central hub is axially and slidably arranged on the torsion bar.
Optionally, the connection assembly comprises:
and the wear-resistant ring is arranged on the outer wall surface of the torsion bar, which is contacted with the central hub.
Optionally, the wind power transmission system with the permanent magnet bearing further comprises:
the wear-resisting locating ring is coaxially arranged on the outer wall surface of the central hub and is used for being in contact with the first bearing space.
Optionally, the drive gear set comprises:
the driving gear gland is detachably arranged on the side wall of the driving gear and used for sealing the first bearing space.
Optionally, the wind power transmission system with the permanent magnet bearing further comprises:
a transfer case housing having a second bearing space formed therein for bearing the drive gear set;
the transfer case cover plate is detachably arranged on the transfer case shell and used for closing the second bearing space.
Optionally, the method further comprises:
and the limiting piece is arranged on the driving gear and used for axially fixing the driving gear.
Optionally, the at least three connecting components take the axis of the central hub as the center of a circle, and the at least three connecting components are annularly and equidistantly arranged between the central hub and the transmission gear set.
According to a second aspect of an embodiment of the present application, a wind power plant is presented, implementing a wind power transmission system with a permanent magnet bearing as presented in any of the above first aspects.
(II) advantageous effects
The beneficial effects of the utility model are as follows: according to the wind power transmission system with the permanent magnet bearing, the connecting assembly is arranged between the central hub and the transmission gear set, synchronous rotation of the two components is achieved under the condition that the central hub and the driving gear set are axially displaced, the transmission gear set is radially rotated together under the condition that the central hub is radially rotated, axial movement of the main shaft of the permanent magnet bearing assembly and the central hub is achieved through relative movement of the connecting assembly and the central hub, the transmission gear set is fixed relative to the generator, normal operation of the transmission gear set cannot be affected under the condition that the central hub is axially displaced, and therefore the permanent magnet bearing assembly and the transmission gear set for multi-stage wind power generation can be connected together through the connecting assembly, and the transmission gear set is applicable to magnetic bearing occasions.
Drawings
FIG. 1 is a schematic cross-sectional structural view of a wind power transmission system with a permanent magnet bearing of the present utility model;
FIG. 2 is a schematic view of an angle configuration of a wind power transmission system with a permanent magnet bearing according to the present utility model;
FIG. 3 is a schematic view of an angle configuration of a drive gear of a wind-driven system with a permanent magnet bearing according to the present utility model;
FIG. 4 is a schematic view of another angular configuration of a drive gear of a wind-driven system with a permanent magnet bearing according to the present utility model;
FIG. 5 is a schematic cross-sectional structural view of a drive gear of a wind-driven system with a permanent magnet bearing of the present utility model;
fig. 6 is a schematic sectional view of a wind power generation device according to the present utility model.
[ reference numerals description ]
100-transmission gear sets, 200-center hubs, 300-permanent magnet bearing assemblies, 400-connection assemblies, 500-wear-resistant positioning rings, 600-transfer case shells, 700-transfer case cover plates and 800-limiting pieces;
110-a driving gear, 120-a high-speed gear, 130-a driving gear gland;
410-torsion bar, 420-wear ring;
101-first bearing space, 601-second bearing space.
Detailed Description
In order that the above-described aspects may be better understood, exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.
As shown in fig. 1 to 5, according to a first aspect of an embodiment of the present application, a wind power transmission system with a permanent magnet bearing is provided, comprising: a drive gear set 100 for connection with at least two generators; the central hub 200 is coaxially arranged with the transmission gear set 100 and is used for being coaxially and fixedly connected with the permanent magnet bearing assembly 300; the connection assembly 400 is disposed between the central hub 200 and the driving gear set 100, and is used for the driving gear set 100 to rotate radially together when the central hub 200 rotates radially.
The wind power transmission system with the permanent magnet bearing provided by the embodiment of the application comprises a transmission gear set 100, a central hub 200 and a connecting assembly 400, wherein the transmission gear set 100 is connected with at least two generators, and when the transmission gear set 100 works, the transmission gear set 100 can drive the at least two generators to work at the same time so that the at least two generators generate electricity and the mechanical energy is converted into electric energy; the central hub 200 is coaxially arranged with the transmission gear set 100, the central hub 200 is coaxially and fixedly connected with the permanent magnet bearing assembly 300, and when the permanent magnet bearing assembly 300 is in working motion, the central hub 200 can work together with the permanent magnet bearing assembly 300; the connection assembly 400 is disposed between the center hub 200 and the gear set 100 for enabling the gear set 100 to rotate along with the center hub 200 in a radial direction when the center hub 200 rotates in a radial direction.
In the prior art, the permanent magnet bearing assembly 300 bears the axial load and bending moment load of the main shaft, but because the permanent magnet bearing assembly 300 needs to axially displace when generating axial force, the transmission gear set 100 is connected with a generator and is a transmission gear set of a multi-stage wind power generation system, and the transmission gear set 100 is not allowed to axially displace when in meshed transmission; compared with the prior art, in the wind power transmission system with the permanent magnet bearing provided by the embodiment of the application, the connecting assembly 400 is arranged between the central hub 200 and the transmission gear set 100, synchronous rotation of two components is realized under the condition that the central hub 200 and the driving gear set 100 have axial displacement, the transmission gear set 100 rotates along the radial direction together under the condition that the central hub 200 rotates along the radial direction, the axial movement generated by the main shaft of the permanent magnet bearing assembly 300 and the central hub 200 is realized through the relative movement of the connecting assembly 400 and the central hub 200, the transmission gear set 100 is fixed relative to the generator, and the normal operation of the transmission gear set 100 is not influenced under the condition that the central hub 200 axially displaces, therefore, the permanent magnet bearing assembly 300 and the transmission gear set 100 of the multi-stage wind power generation can be connected together by arranging the connecting assembly 400, and the transmission gear set 100 is suitable for the magnetic bearing occasion.
As shown in fig. 1 to 5, the transmission gear set 100 includes: a driving gear 110 having a first bearing space 101 for bearing the central hub 200 formed therein, for axially moving the central hub 200 in the first bearing space 101; the high-speed gear 120 is meshed with the driving gear 110 at equal intervals in a ring shape and is used for being connected with the generator.
As can be seen from the above description, when the connection assembly 400 is disposed between the central hub 200 and the driving gear set 100 to realize radial rotation of the central hub 200, the driving gear set 100 rotates along with the radial direction, in which technical scheme, the driving gear set 100 includes a driving gear 110 and a high-speed gear 120, wherein a first bearing space 101 is formed inside the driving gear 110, the central hub 200 is disposed in the first bearing space 101, the central hub 200 can move axially in the first bearing space 101, and it is ensured that the central hub 200 connected with the permanent magnet bearing assembly 300 can perform axial displacement relative to the driving gear 110 when the driving gear set 100 is driven to rotate along the radial direction.
As shown in fig. 1 to 5, the connection assembly 400 includes: torsion bar 410 is provided on drive gear 110, and center hub 200 is axially slidably mounted on torsion bar 410.
In this embodiment, the connection assembly 400 includes a torsion bar 410 disposed on the driving gear 110, the center hub 200 is axially slidably mounted on the torsion bar 410, and when the center hub 200 generates an axial force, the center hub can axially displace along the torsion bar 410, and when the center hub 200 radially rotates, the torsion bar 410 is fixedly disposed on the driving gear 110, and the center hub 200 can drive the torsion bar 410 connected therewith to rotate and simultaneously drive the driving gear 110 to radially rotate together.
As can be seen from the above description, the torsion bar 410 is fixedly disposed in the first bearing space 101, the center hub 200 is slidably mounted on the torsion bar 410, and when the center hub 200 receives the axial moving force transmitted from the permanent magnetic bearing assembly, the center hub 200 moves along the torsion bar 410, and when the center hub 200 rotates, the center hub 200 drives the torsion bar 410 to rotate together, so as to drive the driving gear 110 to rotate together; by providing torsion bar 410, it is possible to realize that when center hub 200 receives the axial movement force transmitted from the permanent magnet bearing assembly, center hub 200 moves axially along torsion bar 410, and when center hub 200 rotates, center hub 200 drives torsion bar 410 to rotate together, thereby driving gear 110 to rotate together.
As shown in fig. 1 to 5, the connection assembly 400 includes: and a wear ring 420 provided on an outer wall surface of the torsion bar 410 contacting the center hub 200.
In this technical solution, the connection assembly 400 includes the wear-resistant ring 420 disposed on the torsion bar 410, as can be seen from the foregoing, the torsion bar 410 is fixedly disposed on the driving gear 110, and the torsion bar 410 is in sliding contact with the central hub 200, when the central hub 200 slides relative to the torsion bar 410, the torsion bar 410 generates friction loss with the central hub 200, and when the working time is too long, due to the consumption problem of the torsion bar 410, the torsion bar 410 may have a risk of breaking, therefore, the wear-resistant ring 420 is disposed on the outer wall surface of the torsion bar 410, so that the direct contact between the torsion bar 410 and the central hub 200 can be effectively avoided, further the wear of the torsion bar 410 is effectively reduced, the service life of the torsion bar 410 is greatly prolonged, and the maintenance cost of the whole device is effectively reduced.
Illustratively, the wear ring 420 is disposed coaxially with the torsion bar 410, and the wear ring 420 is made of a wear-resistant material.
As shown in fig. 1 to 5, the wind power transmission system with the permanent magnet bearing further includes: the wear-resistant positioning ring 500 is coaxially disposed on the outer wall surface of the central hub 200, and is used for contacting with the first bearing space 101.
In this technical scheme, wind power transmission system with permanent magnetism bearing still includes the coaxial wear-resisting holding ring 500 that sets up on the outer wall surface of central wheel hub 200, and when central wheel hub 200 moved in first bearing space 101, central wheel hub 200 contacted with the inner wall in first space 101, produced wearing and tearing, through setting up wear-resisting holding ring 500, can reduce the friction loss of central wheel hub 200, simultaneously through setting up wear-resisting holding ring 500, can guarantee that central wheel hub 200 and first space 101 coaxial setting, avoid when central wheel hub 200 rotates, cause the condition emergence of axle center skew.
As shown in fig. 1 to 5, the transmission gear set 100 includes: the driving gear cover 130 is detachably disposed on a sidewall of the driving gear 110, and is configured to close the first bearing space 101.
In this technical solution, the driving gear set 100 includes a driving gear gland 130 detachably disposed on a side wall of the driving gear 110, the first bearing space 101 can be closed by the driving gear gland 130, the central hub 200 can be conveniently installed in the first bearing space 101 by disposing the driving gear gland 130, so as to reduce the requirement of the production process, and further effectively reduce the cost, wherein how the driving gear gland 130 is detachably connected with the driving gear 110 is not limited.
As shown in fig. 1 to 5, the wind power transmission system with the permanent magnet bearing further includes: a transfer case housing 600 having a second bearing space 601 formed therein for bearing the drive gear set 100; the transfer case cover 700 is detachably mounted on the transfer case housing 600, and is used for closing the second bearing space 601.
In the technical scheme, the wind power transmission system with the permanent magnet bearings further comprises a transfer case shell 600 and a transfer case cover plate 700, wherein a second bearing space 601 for bearing the transmission gear set 100 is formed inside the transfer case shell 600, and the transfer case cover plate 700 is detachably arranged on the transfer case shell 600 and used for sealing the second bearing space 601; the transmission gear set 100 is disposed in the second bearing space 601, the transfer case housing 600 can play a role in fixing the transmission gear set 100, meanwhile, an engine connected with the transmission gear set 100 can be disposed in the transfer case housing 600 to provide a supporting function, and meanwhile, the second bearing space 601 can be an oil-containing cavity to provide lubrication for the transmission gear set 100.
By arranging the transfer case cover plate 700, the transmission gear set 100 can be conveniently installed in the second bearing space 601, so that the requirement of the production process is reduced, and further, the cost is effectively reduced, wherein how the transfer case cover plate 700 is detachably connected with the transfer case housing 600 is not limited.
As shown in fig. 1 to 5, the wind power transmission system with the permanent magnet bearing further includes: the stopper 800 is disposed on the driving gear 110, and is used for fixing the driving gear set 100 in the axial direction.
In this technical solution, the wind power transmission system with the permanent magnetic bearing further includes a limiting member 800 disposed on the driving gear 110, and the driving gear set 100 can be fixed along the axial direction by the limiting member 800, and the limiting member 800 disposed on the driving gear 110 contacts with the inner wall of the second space 601, so as to limit that the driving gear set 100 cannot move along the axial direction.
As shown in fig. 1 to 5, at least three connection assemblies 400 are disposed between the central hub 200 and the driving gear set 100 at equal intervals in a ring shape, with the axis of the central hub 200 as the center.
In this technical solution, at least three connecting assemblies 400 are disposed between the central hub 200 and the driving gear set 100 at equal intervals in a ring shape with the axis of the central hub 200 as the center of a circle, so as to ensure the axial stability of the central hub 200 when it is in the first bearing space 101.
As shown in fig. 6, a wind power generation device according to a second aspect of the embodiments of the present application is provided, where a wind power transmission system with a permanent magnetic bearing according to any of the above-mentioned aspects is implemented.
Because the wind power generation device provided by the embodiment of the application includes the wind power transmission system with the permanent magnet bearing according to any one of the first aspect, the wind power generation device with the permanent magnet bearing has all the beneficial effects of the wind power transmission system with the permanent magnet bearing, and the description thereof is omitted.
In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature, which may be in direct contact with the first and second features, or in indirect contact with the first and second features via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is level lower than the second feature.
In the description of the present specification, the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., refer to particular features, structures, materials, or characteristics described in connection with the embodiment or example as being included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the utility model.
Claims (10)
1. A wind power transmission system with permanent magnet bearings, comprising:
the transmission gear set is used for being connected with at least two generators;
the central hub is coaxially arranged with the transmission gear set and is fixedly connected with the permanent magnet bearing assembly coaxially;
the connecting assembly is arranged between the central hub and the transmission gear set and is used for enabling the transmission gear set to rotate radially together under the condition that the central hub rotates radially.
2. The wind power transmission system with permanent magnet bearings according to claim 1, wherein: the drive gear set includes:
the driving gear is internally provided with a first bearing space for bearing the central hub and is used for axially moving the central hub in the first bearing space;
the annular equidistant gears are connected with the driving gear in a meshed mode and are used for being connected with the generator.
3. A wind power transmission system with permanent magnet bearings according to claim 2, wherein: the connection assembly includes:
and the torsion bar is arranged on the driving gear, and the central hub is axially and slidably arranged on the torsion bar.
4. A wind power transmission system with permanent magnet bearings according to claim 3, wherein: the connection assembly includes:
and the wear-resistant ring is arranged on the outer wall surface of the torsion bar, which is in contact with the central hub.
5. A wind power transmission system with permanent magnet bearings according to claim 2, wherein: further comprises:
and the wear-resistant positioning ring is coaxially arranged on the outer wall surface of the central hub and is used for being in contact with the first bearing space.
6. A wind power transmission system with permanent magnet bearings according to claim 2, wherein: the drive gear set includes:
and the driving gear gland is detachably arranged on the side wall of the driving gear and used for sealing the first bearing space.
7. A wind power transmission system with permanent magnet bearings according to claim 2, wherein: further comprises:
a transfer case housing having a second bearing space formed therein for bearing the drive gear set;
the transfer case cover plate is detachably arranged on the transfer case shell and used for closing the second bearing space.
8. The wind power transmission system with permanent magnet bearings of claim 7, wherein: further comprises:
and the limiting piece is arranged on the driving gear and used for enabling the transmission gear set to be axially fixed.
9. Wind power transmission system with permanent magnet bearings according to any of the claims 1 to 8, characterized in that:
the connecting assemblies are at least three, the axes of the central hub are used as circle centers, and the connecting assemblies are annularly and equidistantly arranged between the central hub and the transmission gear set.
10. Wind power plant comprising a wind power transmission system with permanent magnet bearings according to any of the claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321648513.4U CN220395904U (en) | 2023-06-27 | 2023-06-27 | Wind power transmission system with permanent magnet bearing and wind power generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321648513.4U CN220395904U (en) | 2023-06-27 | 2023-06-27 | Wind power transmission system with permanent magnet bearing and wind power generation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220395904U true CN220395904U (en) | 2024-01-26 |
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ID=89601988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321648513.4U Active CN220395904U (en) | 2023-06-27 | 2023-06-27 | Wind power transmission system with permanent magnet bearing and wind power generation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220395904U (en) |
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2023
- 2023-06-27 CN CN202321648513.4U patent/CN220395904U/en active Active
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