CN214661888U - Marine large-megawatt wind power gear box - Google Patents
Marine large-megawatt wind power gear box Download PDFInfo
- Publication number
- CN214661888U CN214661888U CN202023063039.8U CN202023063039U CN214661888U CN 214661888 U CN214661888 U CN 214661888U CN 202023063039 U CN202023063039 U CN 202023063039U CN 214661888 U CN214661888 U CN 214661888U
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- China
- Prior art keywords
- gear box
- box body
- main shaft
- wind power
- megawatt wind
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- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 230000004323 axial length Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims 1
- 230000005611 electricity Effects 0.000 abstract description 7
- 230000008878 coupling Effects 0.000 abstract description 5
- 238000010168 coupling process Methods 0.000 abstract description 5
- 238000005859 coupling reaction Methods 0.000 abstract description 5
- 238000005452 bending Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 2
- 230000010485 coping Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009466 transformation Effects 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 discloses a marine big megawatt wind-powered electricity generation gear box, including preceding box, back box and multistage transmission subassembly, through the combination hookup mode that preceding box and cabin rigid coupling and main shaft and gear box pass through the flexible hookup of one-level revolving rack, both avoided transmitting main shaft bending moment for the gear box, avoided the gear box to produce again and crossed the location, carry out the transmission through multistage transmission subassembly simultaneously, can arrange step by step, effectively reduce the assembly degree of difficulty of gear box.
Description
Technical Field
The utility model relates to a wind-powered electricity generation gear box structure field, in particular to marine big megawatt wind-powered electricity generation gear box.
Background
Since the industrial revolution, the world's economic scale has increased considerably with a steady supply of energy. However, while people enjoy the benefits of economic development and technological progress brought by energy, people also encounter a series of unavoidable energy safety challenges. Wind power is one of the most abundant and conveniently-obtained renewable energy sources in the world, and the development of wind power becomes the core content of energy transformation promotion and an important way for coping with climate change in many countries. Meanwhile, with the gradual saturation of onshore wind fields, people gradually aim at the sea, and compared with onshore, offshore wind energy is richer and is not limited by the terrain, so that higher power requirements are provided for offshore wind turbines.
But be different from land fan, offshore wind turbine operating mode is complicated, the cost of transportation is high and the maintenance difficulty has provided very high requirement to life-span, weight and the security of wind-powered electricity generation gear box, and this application provides a transmission structure of wind-powered electricity generation gear box.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at providing a marine big megawatt wind-powered electricity generation gear box can also reduce the degree of difficulty of assembly when can improving the reliability of gear box, staff's security when improving the later maintenance.
The technical scheme is as follows: big megawatt wind-powered electricity generation gear box on sea, including the gear box, its characterized in that: the gearbox comprises a front box body and a rear box body, a main shaft coupler is arranged on the front box body, and a primary rotating frame in the front box body is flexibly connected with a main shaft through the main shaft coupler; the rear box body is directly connected with the generator; a transmission assembly not higher than three stages is arranged in the gear box, and a last stage assembly of power output in the transmission assembly is arranged in the rear box body; at least three planet wheels are arranged in each stage of the transmission assembly.
Preferably, the front box is rigidly fixed to the nacelle by bolts, and receives the weight of the gearbox and the generator and the input torque of the main shaft.
Preferably, the generator is fixed on the rear box body through flange bolts, and the axial length of the gear box is shortened.
Preferably, the last stage of power output assembly in the transmission assembly is connected with the motor through a motor coupler in a straight-tooth transmission mode.
Preferably, the motor coupling is an insulated coupling that avoids the introduction of current into the gear box.
Has the advantages that: the gear box in the utility model adopts multi-stage transmission and step-by-step arrangement, thereby effectively reducing the difficulty of assembly; the combined connection mode of the rigid connection of the front box body of the gear box and the engine room and the flexible connection of the main shaft and the primary rotating frame of the gear box not only avoids the transmission of the bending moment of the main shaft to the gear box, but also avoids the over-positioning of the gear box; the last stage of power output assembly in the transmission assembly in the gearbox adopts a straight tooth planetary transmission mode, so that the transmission of axial force to an engine is avoided, the engine is protected, and meanwhile, the stage of power output assembly is arranged in the rear box body, so that the axial size of the gearbox is shortened, and the rigidity of the rear box body is increased; the arrangement of the insulating coupler avoids the current of the generator from leaking into the cabin to influence electric devices in the host, and the safety of workers during later maintenance is guaranteed.
Drawings
FIG. 1 is a side cross-sectional view of the present invention;
fig. 2 is a left side view of the middle gearbox of the present invention.
Detailed Description
The invention will be further elucidated with reference to the embodiments described hereinafter.
As shown in fig. 1-2, for the structural schematic diagram of the present invention, including a gear case 1, a front case 11 and a rear case 12 are disposed in the gear case 1, the front case 11 is rigidly fixed on the engine room by a flange bolt, and receives the weight of the gear case 1 and the generator 3 and the input torque of the main shaft 4, a main shaft coupler 5 is disposed on the front case 11, and a first stage rotating frame in the front case 11 is flexibly connected with the main shaft 4 by the main shaft coupler 5, so that the combined connection mode not only avoids transmitting the bending moment of the main shaft 4 to the gear case 1, but also avoids the over-positioning of the gear case 1; the rear box body 12 is directly connected with the generator 3, and the generator 3 is fixed on the rear box body 12 through bolts, so that the axial length of the gear box 1 is shortened.
In this embodiment, be provided with tertiary transmission assembly in the gear box 1, adopt tertiary transmission, the mode of arranging step by step, the degree of difficulty of assembly has effectively been reduced, power take off's last one-level subassembly sets up in box 12 at the back in tertiary transmission assembly, adopt straight-tooth drive's mode to be connected with generator 3 through insulating coupling simultaneously, avoided transmitting the axial force for the generator, the generator has been protected, 3 electric currents of generator have still been avoided to leak inside the cabin in insulating coupling's the setting, influence the electrical part in the host computer, staff's safety when having guaranteed the later maintenance.
The utility model discloses in all be provided with on every grade of transmission assembly and be no less than three planet wheel, still alleviateed gear box 1's weight when improving gear box 1 bearing capacity.
Claims (5)
1. The utility model provides a big megawatt wind power gear box on sea, includes gear box (1), its characterized in that: the gearbox (1) comprises a front box body (11) and a rear box body (12), a main shaft coupler (5) is arranged on the front box body (11), and a primary rotating frame in the front box body (11) is flexibly connected with a main shaft (4) through the main shaft coupler (5); the rear box body (12) is directly connected with the generator (3); a transmission assembly not higher than three stages is arranged in the gear box (1), and a final stage assembly of power output in the transmission assembly is arranged in the rear box body (12); at least three planet wheels are arranged in each stage of the transmission assembly.
2. The offshore large megawatt wind power gearbox of claim 1, wherein: the front box body (11) is rigidly fixed on the engine room through flange bolts and bears the weight of the gear box (1) and the generator (3) and the input torque of the main shaft.
3. The offshore large megawatt wind power gearbox of claim 1, wherein: the generator (3) is fixed on the rear box body (12) through bolts, and the axial length of the gear box (1) is shortened.
4. The offshore large megawatt wind power gearbox of claim 1, wherein: and the last-stage component of power output in the transmission component is connected with the generator (3) through the motor coupler (2).
5. An offshore large megawatt wind power gearbox according to claim 4, characterized in that: the motor coupler (2) adopts an insulation coupler which can avoid leading current into the gear box (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023063039.8U CN214661888U (en) | 2020-12-18 | 2020-12-18 | Marine large-megawatt wind power gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023063039.8U CN214661888U (en) | 2020-12-18 | 2020-12-18 | Marine large-megawatt wind power gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214661888U true CN214661888U (en) | 2021-11-09 |
Family
ID=78500987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023063039.8U Active CN214661888U (en) | 2020-12-18 | 2020-12-18 | Marine large-megawatt wind power gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214661888U (en) |
-
2020
- 2020-12-18 CN CN202023063039.8U patent/CN214661888U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No.99 Furong Zhongsan Road, Xishan Economic and Technological Development Zone, Wuxi City, Jiangsu Province, 214000 Patentee after: Delijia Transmission Technology (Jiangsu) Co.,Ltd. Country or region after: China Address before: No.99 Furong Zhongsan Road, Xishan Economic and Technological Development Zone, Wuxi City, Jiangsu Province, 214000 Patentee before: DELIJIA TRANSMISSION TECHNOLOGY (JIANGSU) Co.,Ltd. Country or region before: China |