CN113217612A - Gearbox and generator integration scheme for wind driven generator - Google Patents

Gearbox and generator integration scheme for wind driven generator Download PDF

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Publication number
CN113217612A
CN113217612A CN202110635514.4A CN202110635514A CN113217612A CN 113217612 A CN113217612 A CN 113217612A CN 202110635514 A CN202110635514 A CN 202110635514A CN 113217612 A CN113217612 A CN 113217612A
Authority
CN
China
Prior art keywords
generator
gearbox
gear box
end cover
oil return
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.)
Pending
Application number
CN202110635514.4A
Other languages
Chinese (zh)
Inventor
崔新维
何家志
胡成明
段辰玥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Sanli Xinneng Science & Technology Co ltd
Original Assignee
Beijing Sanli Xinneng Science & Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Sanli Xinneng Science & Technology Co ltd filed Critical Beijing Sanli Xinneng Science & Technology Co ltd
Priority to CN202110635514.4A priority Critical patent/CN113217612A/en
Publication of CN113217612A publication Critical patent/CN113217612A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/031—Gearboxes; Mounting gearing therein characterised by covers or lids for gearboxes
    • 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
    • F03D15/00—Transmission of mechanical power
    • F03D15/10—Transmission of mechanical power using gearing not limited to rotary motion, e.g. with oscillating or reciprocating members
    • 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
    • F03D80/70—Bearing or lubricating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/025—Support of gearboxes, e.g. torque arms, or attachment to other devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02013—Extension units for gearboxes, e.g. additional units attached to a main gear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02034—Gearboxes combined or connected with electric machines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02039—Gearboxes for particular applications
    • F16H2057/02078—Gearboxes for particular applications for wind turbines
    • 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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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Details Of Gearings (AREA)

Abstract

The invention discloses a gear box and generator integration scheme for a wind driven generator. The integrated solution generator terminates directly at the rear of the gearbox, with a common end cover at the junction of the gearbox and generator. And a bearing seat of a planet carrier bearing of the gear box and a front bearing of the generator is arranged on the common end cover. Meanwhile, a reasonable structure is arranged on the common end cover, and the functions of sealing the generator, lubricating the front bearing, returning lubricating oil and the like are realized. The integration scheme improves the reliability, and simultaneously, the integrated structure of the gear box and the generator is more compact, and the cost is further reduced.

Description

Gearbox and generator integration scheme for wind driven generator
Technical Field
The invention relates to the technical field of wind power generation, in particular to a gear box and generator integration scheme for a wind driven generator.
Background
The gearbox and generator are important components in wind generators. In wind power generators with gear boxes, it is common that the gear box and the generator are independent components, and the gear box and the generator are in transmission relation only through a coupling. Although the gearbox and the generator of the scheme have clear respective functions, the structure is scattered, the materials of the gearbox, the generator and the supporting structure thereof are redundant, partial structure functions are repeated, and further the cost is increased.
Disclosure of Invention
Aiming at the problems, the invention provides an integrated scheme of the gearbox and the generator for the wind driven generator on the basis of comprehensively analyzing the structural and functional requirements of the gearbox and the generator. The scheme of the invention is as follows.
The invention discloses a gear box and generator integration scheme which comprises a common end cover, a gear box planet carrier bearing, a gear box output shaft, a generator front bearing, a generator rotor shaft, a gear box shell, a generator shell, a front sealing piece I, a front sealing piece II, a rear sealing piece, an oil return channel, a front oil return opening, an oil collecting tank and a rear oil return opening. In the integrated scheme, the generator is directly terminated at the rear part of the gearbox, and the common end cover is positioned at the joint of the gearbox and the generator. And a bearing seat for mounting the planet carrier bearing of the gear box and the front bearing of the generator is arranged on the common end cover and is used for supporting the planet carrier of the gear box and the rotor shaft of the generator. The first front sealing piece and the second front sealing piece are arranged between the generator rotor shaft and the gearbox output shaft. The rear sealing piece is arranged on the rear side of the front bearing of the generator and is positioned between the rotor shaft of the generator and the common end cover.
The generator front bearing is arranged in a bearing seat of the common end cover and can axially move in a bearing seat hole, and the generator front bearing is communicated with the interior of the gear box and lubricated by oil in the gear box.
And the common end cover is provided with a plurality of oil return channels. The oil return passage is located below an axis of the common end cover. The front lower part of the generator front bearing seat is provided with a plurality of front oil ports, and the front oil ports are communicated with the oil return channel to guide oil liquid lubricating the generator front bearing back into the gear box. The rear lower part of the generator front bearing seat is provided with a plurality of oil return grooves and rear oil ports, and the rear oil return ports are communicated with the oil return channel to guide oil leaking from the generator front bearing to the rear end face of the bearing seat back into the gear box.
The front sealing piece I, the front sealing piece II and the rear sealing piece are all of annular structures. The first front sealing piece is fixedly connected with the output shaft of the gear box, the second front sealing piece is fixedly connected with the rotor shaft of the generator, and the first front sealing piece and the second front sealing piece are sealed through a labyrinth structure. The rear sealing element is fixedly connected with the generator rotor shaft and is sealed with the common end cover through a labyrinth structure; or the common end cover is fixedly connected with a sealing element, and the sealing element and the rear sealing element are sealed through a labyrinth structure.
The generator shell and the gear box shell are provided with flanges, and the gear box and the generator are integrated into a whole through bolt connection.
According to the technical scheme of the integrated structure of the gear box and the generator, a common end cover is arranged at the joint of the gear box and the generator, and the end cover not only isolates the interior of the gear box and the interior of the generator, but also provides support for a planet carrier bearing of the gear box and a front bearing of the generator. Meanwhile, through reasonable structural design, the functions of sealing the generator, lubricating the front bearing of the generator, returning lubricating oil and the like are realized. The gearbox and the generator integrated structure of the scheme is more compact, the overall cost is reduced, and meanwhile, the reliability of components is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a cross-sectional view of the present invention.
Fig. 2 is a partially enlarged view of the oil return and sealing structure of the present invention.
In the figure: 1-common end cover, 2-gearbox planet carrier, 3-gearbox planet carrier bearing, 4-gearbox output shaft, 5-generator front bearing, 6-generator rotor shaft, 7-gearbox housing, 8-generator housing, 9-front seal one, 10-front seal two, 11-rear seal, 12-oil return channel, 13-front oil return, 14-oil sump, 15-rear oil return.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. The invention provides a gearbox and generator integration scheme for a wind driven generator, and a preferred embodiment of the gearbox and generator integration scheme is as follows.
As shown in FIG. 1, the gearbox and generator integration scheme of the wind driven generator of the invention is composed of a common end cover 1, a gearbox planet carrier 2, a gearbox planet carrier bearing 3, a gearbox output shaft 4, a generator front bearing 5, a generator rotor shaft 6, a gearbox shell 7, a generator shell 8, a front sealing piece I9, a front sealing piece II 10 and a rear sealing piece 11. The common end cover 1 is provided with an oil return channel 12, the front part of a bearing seat of the generator front bearing 5 is provided with a front oil return port 13, and the rear end of the bearing seat is provided with an oil groove 14 and a rear oil return port 15.
In the scheme of the invention, the generator is directly terminated at the rear part of the gearbox, and the common end cover 1 is positioned at the joint of the gearbox and the generator. Bearing seats for mounting a gearbox planet carrier bearing 3 and a generator front bearing 4 are arranged on the common end cover 1 and are used for supporting a gearbox planet carrier 2 and a generator rotor shaft 6. A first front seal 9 and a second front seal 10 are arranged between the generator rotor shaft 6 and the gearbox output shaft 4. The rear seal 11 is arranged on the rear side of the generator front bearing 5 between the generator rotor shaft 6 and the common end cover 1.
The generator front bearing 5 is arranged in a bearing seat of the common end cover 1 and can axially move in a bearing seat hole, and the generator front bearing 5 is communicated with the interior of the gear box and lubricated by oil in the gear box.
The common end cover 1 is provided with an oil return channel 12, and the oil return channel 12 is positioned at the lower side of the main line of the common end cover 1. A front oil return port 13 is arranged at the front lower part of a bearing seat of the generator front bearing 5, and the front oil return port 13 is communicated with an oil return channel 12 to guide oil liquid lubricating the generator front bearing 5 back into the gear box. An oil return groove 14 and a rear oil return opening 15 are arranged at the rear lower part of a bearing seat of the front generator bearing 5, the rear oil return opening 15 is communicated with an oil return channel 12, and oil leaking from the front generator bearing 5 to the rear end face of the bearing seat is guided back into the gear box.
The first front sealing piece 9, the second front sealing piece 10 and the rear sealing piece 11 are all of annular structures. The first front sealing piece 9 is fixedly connected with the output shaft 4 of the gear box, the second front sealing piece 10 is fixedly connected with the rotor shaft 6 of the generator, and the first front sealing piece 9 and the second front sealing piece 10 are sealed through a labyrinth structure. The rear sealing piece 11 is fixedly connected with the generator rotor shaft 6 and sealed with the common end cover 1 through a labyrinth structure.
The gear box shell 7 is fixedly connected with the common end cover 1. The gear box shell 7 and the generator shell 8 are both provided with flanges, and the gear box and the generator are integrated into a whole through bolt connection.
The gear rear end cover 1 in the gearbox and generator integration scheme not only isolates the inside of the gearbox and the generator from each other, but also provides support for a gearbox planet carrier bearing 3 and a generator front bearing 5. Meanwhile, through reasonable structural design, the functions of generator sealing, generator front bearing 5 lubrication and lubricating oil return and the like are realized. The gearbox and the generator integrated structure of the scheme is more compact, the overall cost is reduced, and meanwhile, the reliability of components is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.

Claims (8)

1. A gearbox and generator integration scheme for a wind turbine, characterized by: the integrated scheme is composed of a shared end cover, a gear box planet carrier bearing, a gear box output shaft, a generator front bearing, a generator rotor shaft, a gear box shell, a generator shell, a front sealing element I, a front sealing element II, a rear sealing element, an oil return channel, a front oil return opening, an oil collecting tank and a rear oil return opening; the common end cover is positioned at the junction of the gear box and the generator; a bearing seat for mounting the gear box planet carrier bearing and the generator front bearing is arranged on the common end cover and is used for supporting the gear box planet carrier and the generator rotor shaft; the first front sealing piece and the second front sealing piece are arranged between the generator rotor shaft and the gearbox output shaft; the rear seal is disposed rearward of the generator front bearing, between the generator rotor shaft and the common end cover.
2. A gearbox and generator integration scheme for a wind turbine according to claim 1 wherein: the generator front bearing can axially move in the bearing seat hole and is communicated with the interior of the gear box.
3. A gearbox and generator integration scheme for a wind turbine according to claim 1 wherein: the front bearing of the generator is lubricated by oil in the gear box.
4. A gearbox and generator integration scheme for a wind turbine according to claim 1 wherein: the shared end cover is provided with a plurality of oil return channels, and the oil return channels are located below the axis of the shared end cover.
5. A gearbox and generator integration scheme for a wind turbine according to claim 1 wherein: on the common end cover, a plurality of front oil return ports are arranged at the front lower part of the generator front bearing seat, a plurality of oil return grooves and rear oil return ports are arranged at the rear lower part of the bearing seat, and the front oil return ports and the rear oil return ports are communicated with the oil return channel.
6. A gearbox and generator integration scheme for a wind turbine according to claim 1 wherein: the first front sealing piece and the second front sealing piece are both of annular structures, the first front sealing piece is fixedly connected with the output shaft of the gear box, the second front sealing piece is fixedly connected with the rotor shaft of the generator, and the first front sealing piece and the second front sealing piece are sealed through a labyrinth structure.
7. A gearbox and generator integration scheme for a wind turbine according to claim 1 wherein: the rear sealing element is of an annular structure and is fixedly connected with the generator rotor shaft, and the rear sealing element and the common end cover are sealed through a labyrinth structure; or the common end cover is fixedly connected with a sealing element, and the sealing element and the rear sealing element are sealed through a labyrinth structure.
8. A gearbox and generator integration scheme for a wind turbine according to claim 1 wherein: the generator shell and the gear box shell are provided with flanges and are connected through bolts.
CN202110635514.4A 2021-06-08 2021-06-08 Gearbox and generator integration scheme for wind driven generator Pending CN113217612A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110635514.4A CN113217612A (en) 2021-06-08 2021-06-08 Gearbox and generator integration scheme for wind driven generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110635514.4A CN113217612A (en) 2021-06-08 2021-06-08 Gearbox and generator integration scheme for wind driven generator

Publications (1)

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CN113217612A true CN113217612A (en) 2021-08-06

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CN202110635514.4A Pending CN113217612A (en) 2021-06-08 2021-06-08 Gearbox and generator integration scheme for wind driven generator

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113958692A (en) * 2021-10-22 2022-01-21 华能通辽风力发电有限公司 Gear box hollow shaft sealing structure
WO2023092780A1 (en) * 2021-11-26 2023-06-01 中车株洲电机有限公司 Integrated wind turbine generator

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101363407A (en) * 2008-09-12 2009-02-11 三一电气有限责任公司 Wind generating set
CN101865084A (en) * 2009-01-16 2010-10-20 通用电气公司 Compact geared drive train
CN209217849U (en) * 2018-11-26 2019-08-06 采埃孚传动技术(苏州)有限公司 Integrated central drive system
CN110154735A (en) * 2018-05-15 2019-08-23 北京理工大学 A kind of Electric Motor Wheel and vehicle
CN215487563U (en) * 2021-06-08 2022-01-11 北京三力新能科技有限公司 Gear box and generator integrated structure for wind driven generator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101363407A (en) * 2008-09-12 2009-02-11 三一电气有限责任公司 Wind generating set
CN101865084A (en) * 2009-01-16 2010-10-20 通用电气公司 Compact geared drive train
CN110154735A (en) * 2018-05-15 2019-08-23 北京理工大学 A kind of Electric Motor Wheel and vehicle
CN209217849U (en) * 2018-11-26 2019-08-06 采埃孚传动技术(苏州)有限公司 Integrated central drive system
CN215487563U (en) * 2021-06-08 2022-01-11 北京三力新能科技有限公司 Gear box and generator integrated structure for wind driven generator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113958692A (en) * 2021-10-22 2022-01-21 华能通辽风力发电有限公司 Gear box hollow shaft sealing structure
WO2023092780A1 (en) * 2021-11-26 2023-06-01 中车株洲电机有限公司 Integrated wind turbine generator

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