CN219061900U - Hub and gearbox integrated wind generating set transmission chain structure - Google Patents
Hub and gearbox integrated wind generating set transmission chain structure Download PDFInfo
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- CN219061900U CN219061900U CN202223464645.XU CN202223464645U CN219061900U CN 219061900 U CN219061900 U CN 219061900U CN 202223464645 U CN202223464645 U CN 202223464645U CN 219061900 U CN219061900 U CN 219061900U
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- main bearing
- planetary transmission
- gearbox
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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 discloses a transmission chain structure of a wind generating set, wherein the transmission chain structure is formed by integrating a hub and a gear box, and comprises a hub, a front main bearing, a rear main bearing, a planetary transmission speed increasing gear box, a generator and a cabin; the center of the inner cavity of the hub is provided with a large flange with a rib plate, and the planetary transmission speed increasing gear box is arranged on the large flange; the input end of the planetary transmission speed increasing gearbox is a first-stage planet carrier, a spigot is designed on the hub side of the first-stage planet carrier, and an inner ring of the front main bearing is arranged at the spigot; the generator side of the first-stage planet carrier is provided with a spigot, and the inner ring of the rear main bearing is arranged at the spigot; the outer rings of the front main bearing and the rear main bearing are arranged in the box body spigot of the planetary transmission speed increasing gearbox; the front side of the shell of the generator is fixedly arranged with the box body of the planetary transmission speed increasing gear box, and the rear side of the shell of the generator is fixedly arranged with the flange of the engine room. The utility model can effectively shorten the length of the transmission chain, reduce the stress of the main bearing and realize low-cost high-power transmission.
Description
Technical Field
The utility model relates to the technical field of wind generating set transmission chains, in particular to a wind generating set transmission chain structure with a hub and a gear box integrated.
Background
At present, a transmission chain of a wind generating set is generally longer, and a hub, a main shaft system, a gear box and a generator are sequentially distributed in series from a machine head to a machine tail.
Along with the large-scale development of the wind turbine generator, the distance from the hub center to the main shaft bearing center is longer and longer, so that the main shaft bearing has higher and higher strength requirements and larger size, the cost of the wind turbine generator is greatly increased, and the wind turbine generator is a tripolite for the market of low price. Meanwhile, a longer transmission chain brings more transmission chain faults.
Disclosure of Invention
The utility model aims to overcome the defects and shortcomings of the prior art, and provides a transmission chain structure of a wind turbine generator system with an integrated hub and a gearbox, which can effectively shorten the length of the transmission chain, reduce the stress of a main bearing and realize low-cost high-power transmission.
In order to achieve the above purpose, the technical scheme provided by the utility model is as follows: a transmission chain structure of a wind generating set with a hub integrated with a gear box comprises a hub, a front main bearing, a rear main bearing, a planetary transmission speed increasing gear box, a generator and a cabin; the center of the inner cavity of the hub is provided with a large flange with a rib plate, and the planetary transmission speed-increasing gearbox is arranged on the large flange to integrate the gearbox with the hub; the input end of the planetary transmission speed increasing gearbox is a first-stage planet carrier, a spigot is designed on the hub side of the first-stage planet carrier, and an inner ring of the front main bearing is arranged at the spigot; the generator side of the first-stage planet carrier is provided with a spigot, and the inner ring of the rear main bearing is arranged at the spigot; the outer rings of the front main bearing and the rear main bearing are arranged in a box spigot of the planetary transmission speed increasing gearbox; the front side of the shell of the generator is fixedly arranged with the box body of the planetary transmission speed increasing gear box to convert the torque output by the planetary transmission speed increasing gear box into electric energy, and the rear side of the shell of the generator is fixedly arranged with the flange of the engine room to transmit the electric energy to the bottom of the tower barrel of the wind generating set through the engine room.
Further, the generator is configured with a high speed shaft brake.
Further, the planet carrier of the planetary transmission speed increasing gearbox rotates with the sun gear, the inner gear ring is fixed, and a two-stage or multi-stage planetary transmission structure is adopted.
Further, the first-stage planet carrier adopts a double-arm structure.
Further, the front main bearing and the rear main bearing are single-row tapered roller bearings.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
1. the whole machine with the same power generation power, such as a MySE9MW wind generating set, adopts the scheme of the utility model, the weight of the main machine can be reduced by at least 70 tons, and the power density of the whole machine is greatly improved.
2. The same unit is used as the main bearing of the wind generating set with very high cost, under the arrangement of the scheme of the utility model, the load (mainly bending moment load) borne by the main bearing from the center of the hub is greatly reduced, the safety margin of the main bearing is larger, the main bearing can be upwards compatible with the unit with larger generating power, the electric cost of the whole machine degree is reduced, and the design scheme is provided for the whole machine with the grade of 10MW and above on land.
3. The main bearing, the gear box and the generator are installed and integrated together in an ultra-compact mode, the assembly is easier, the rotation precision is higher, and the operation reliability is greatly improved compared with that of the conventional unit.
Drawings
FIG. 1 is a schematic diagram of a drive train configuration of a wind turbine generator system with a hub integrated with a gearbox.
Detailed Description
The present utility model will be described in further detail with reference to examples and drawings, but embodiments of the present utility model are not limited thereto.
As shown in fig. 1, the present embodiment discloses a drive train structure of a wind turbine generator system in which a hub and a gear box are integrated, comprising a hub 1, a front main bearing 2, a rear main bearing 3, a planetary drive speed increasing gear box 4, a generator 5 and a nacelle 7. The center of the inner cavity of the hub 1 is provided with a large flange with rib plates. The planet carrier of the planetary transmission speed-up gear box 4 rotates with the sun gear, the inner gear ring is fixed, a two-stage or multi-stage planetary transmission structure is adopted, and the planetary transmission speed-up gear box 4 is arranged on the large flange, so that the integration of the gear box and the hub is realized. The input end of the planetary transmission speed increasing gearbox 4 is a first-stage planet carrier, the first-stage planet carrier adopts a double-arm structure, a spigot is designed on the hub side of the first-stage planet carrier, and an inner ring of the front main bearing 2 is arranged at the spigot; the generator side of the first-stage planet carrier is provided with a spigot, and the inner ring of the rear main bearing 3 is arranged at the spigot; the outer rings of the front main bearing 2 and the rear main bearing 3 are arranged in the box body rabbet of the planetary transmission speed increasing gearbox 4. The front main bearing 2, the rear main bearing 3 and the first-stage planet carrier of the planetary transmission speed increasing gearbox 4 are used as a 'combination', and are used for bearing loads from a hub and a first-stage planetary transmission assembly of the gearbox, such as axial force and radial force, the front main bearing 2 and the rear main bearing 3 can adopt but not limited to single-row tapered roller bearings, and can adopt but not limited to back-to-back arrangement, of course, in the combination, two bearings (the front main bearing 2 and the rear main bearing 3) can also adopt a double-row roller bearing, the double-arm structure of the first-stage planet carrier can also adopt a single-arm structure, and the first-stage planet carrier and the inner rings of the double-row roller bearings are integrated. The generator 5 is provided with a high-speed shaft brake 6, the front side of the shell of the generator 5 is fixedly arranged with the box body of the planetary transmission speed increasing gearbox 4 to convert the torque output by the planetary transmission speed increasing gearbox 4 into electric energy, the rear side of the shell of the generator 5 is fixedly arranged with the flange of the engine room 7, and the electric energy is transmitted to the bottom of the tower of the wind generating set through the engine room 7.
The above examples are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present utility model should be made in the equivalent manner, and the embodiments are included in the protection scope of the present utility model.
Claims (5)
1. The utility model provides a wind generating set drive chain structure that wheel hub and gear box are integrated which characterized in that: the device comprises a hub (1), a front main bearing (2), a rear main bearing (3), a planetary transmission speed increasing gearbox (4), a generator (5) and a cabin (7); the center of the inner cavity of the hub (1) is provided with a large flange with a rib plate, and the planetary transmission speed-increasing gearbox (4) is arranged on the large flange to integrate the gearbox and the hub; the input end of the planetary transmission speed increasing gearbox (4) is a first-stage planet carrier, a spigot is designed on the hub side of the first-stage planet carrier, and the inner ring of the front main bearing (2) is arranged at the spigot; a spigot is designed on the generator side of the first-stage planet carrier, and an inner ring of the rear main bearing (3) is arranged at the spigot; the outer rings of the front main bearing (2) and the rear main bearing (3) are arranged in the box body spigot of the planetary transmission speed increasing gearbox (4); the front side of the shell of the generator (5) is fixedly arranged with the box body of the planetary transmission speed increasing gear box (4) to convert the torque output by the planetary transmission speed increasing gear box (4) into electric energy, the rear side of the shell of the generator (5) is fixedly arranged with the flange of the engine room (7) to transmit the electric energy to the bottom of the tower barrel of the wind generating set through the engine room (7).
2. A hub and gearbox integrated wind turbine generator system drive train structure according to claim 1, wherein: the generator (5) is provided with a high-speed shaft brake (6).
3. A hub and gearbox integrated wind turbine generator system drive train structure according to claim 2, wherein: the planet carrier of the planetary transmission speed increasing gearbox (4) rotates with the sun gear, the inner gear ring is fixed, and a two-stage or multi-stage planetary transmission structure is adopted.
4. A hub and gearbox integrated wind turbine generator system drive train structure according to claim 3 wherein: the first-stage planet carrier adopts a double-arm structure.
5. A hub and gearbox integrated wind turbine generator system drive train structure as in claim 4, wherein: the front main bearing (2) and the rear main bearing (3) are single-row tapered roller bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223464645.XU CN219061900U (en) | 2022-12-22 | 2022-12-22 | Hub and gearbox integrated wind generating set transmission chain structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223464645.XU CN219061900U (en) | 2022-12-22 | 2022-12-22 | Hub and gearbox integrated wind generating set transmission chain structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219061900U true CN219061900U (en) | 2023-05-23 |
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ID=86344271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223464645.XU Active CN219061900U (en) | 2022-12-22 | 2022-12-22 | Hub and gearbox integrated wind generating set transmission chain structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219061900U (en) |
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2022
- 2022-12-22 CN CN202223464645.XU patent/CN219061900U/en active Active
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