CN215487563U

CN215487563U - Gear box and generator integrated structure for wind driven generator

Info

Publication number: CN215487563U
Application number: CN202121270057.5U
Authority: CN
Inventors: 崔新维; 何家志; 胡成明; 段辰玥
Original assignee: Beijing Sanli Xinneng Science & Technology Co ltd
Current assignee: Beijing Sanli Xinneng Science & Technology Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2022-01-11
Anticipated expiration: 2031-06-08

Abstract

The utility model discloses a gearbox and generator integrated structure for a wind driven generator. The integrated structure generator is directly terminated to the rear of the gearbox, and a common end cover is provided at the junction of the gearbox and the 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 integrated structure of the gear box and the generator is more compact while improving the reliability, and the cost is further reduced.

Description

Gear box and generator integrated structure for wind driven generator

Technical Field

The utility model relates to the technical field of wind power generation, in particular to a gear box and generator integrated structure for a wind power 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 utility model provides a gearbox and generator integrated structure for a wind driven generator on the basis of comprehensively analyzing the structural and functional requirements of the gearbox and the generator. The scheme of the utility model is as follows.

The utility model relates to a gear box and generator integrated structure, which consists 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 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. The generator in the integrated structure is directly connected to the rear part of the gear box, and the shared end cover is positioned at the connection part of the gear box 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 collecting grooves and rear oil ports, and the rear oil return port is communicated with the oil return channel and guides oil which leaks to the rear end face of the bearing seat from the generator front bearing 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 utility model provides a gearbox and generator integrated structure for a wind driven generator, and a preferred embodiment of the gearbox and generator integrated structure is as follows.

As shown in FIG. 1, the gear box and generator integrated structure of the wind driven generator of the utility model is composed of a common end cover 1, a gear box planet carrier 2, a gear box planet carrier bearing 3, a gear box output shaft 4, a generator front bearing 5, a generator rotor shaft 6, a gear box 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.

The utility model discloses a generator direct connection is in the gear box rear portion in the structure, and sharing end cover 1 is located gear box and generator junction. 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 collecting groove 14 and a rear oil return opening 15 are arranged at the rear lower part of a bearing seat of the front bearing 5 of the generator, and the rear oil return opening 15 is communicated with an oil return channel 12 to guide oil leaked from the front bearing 5 of the generator to the rear end face of the bearing seat 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 integrated structure of the gear box and the generator not only isolates the interior of the gear box and the interior of the generator, but also provides support for a planet carrier bearing 3 of the gear box and a front bearing 5 of the generator. 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

1. A gearbox and generator integrated configuration for a wind turbine, characterized by: this integrated configuration comprises sharing end cover, gear box planet carrier bearing, gear box output shaft, generator front bearing, generator rotor shaft, gear box shell, generator shell, preceding sealing member one, preceding sealing member two, back sealing member, oil return path, preceding oil return opening, oil trap and back oil return opening, the sharing end cover is located gear box and generator junction set up the installation on the sharing end cover gear box planet carrier bearing with the bearing frame of generator front bearing is used for supporting the gear box planet carrier with the generator rotor shaft, preceding sealing member one with preceding sealing member two sets up the generator rotor shaft with between the gear box output shaft, back sealing member sets up generator front bearing rear side generator rotor shaft with between the sharing end cover.

2. A gearbox and generator integration structure 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 structure 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 structure 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 structure 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 collecting 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 structure 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 structure 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 structure 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.