CN211701653U

CN211701653U - Permanent magnet direct-drive wind driven generator rotor support

Info

Publication number: CN211701653U
Application number: CN202020590992.9U
Authority: CN
Inventors: 邓雪明
Original assignee: Changshu Qiangsheng Electric Equipment Co ltd
Current assignee: Changshu Qiangsheng Electric Equipment Co ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-10-16
Anticipated expiration: 2030-04-20

Abstract

The utility model discloses a permanent-magnet direct-drive wind driven generator rotor support, which belongs to the technical field of rotor supports and comprises a central body, wherein the outer side wall of the central body is welded with a trapezoidal buckling pin, the upper part of the outer side wall of the central body is in adaptive connection with an upper disc through the trapezoidal buckling pin and a trapezoidal buckling groove, the lower part of the outer side wall of the central body is in adaptive connection with a lower disc through the trapezoidal buckling pin and the trapezoidal buckling groove, the inner side walls of the upper disc and the lower disc are both provided with the trapezoidal buckling groove, the upper disc comprises a web plate and a vertical rib, the outer side wall of the web plate is welded with a circular buckling pin, and the circular buckling pin is in buckling connection with the circular buckling groove, the upper disc and the lower disc of the rotor support are convenient to assemble and have stable structures, are not easy to generate deformation or fatigue fracture, the joints are not easy to loosen.

Description

Permanent magnet direct-drive wind driven generator rotor support

Technical Field

The utility model relates to a rotor support technical field especially relates to a permanent magnetism directly drives aerogenerator rotor bracket.

Background

The rotor support of large-scale hydraulic generator has two types of combined (radiation type) and disc type, the disc type rotor support is formed by welding hub, upper disc, lower disc, supporting plate and vertical rib, etc., and the disc type rotor support has the advantages of large rigidity, large transmission torque, small ventilation loss, etc.

Patent No. 201520124912 discloses a MW level permanent magnetism directly drives aerogenerator spider in X, not only improved staff's production efficiency, also made things convenient for staff's operation, only need two people operate can, improve every rotor of back and practiced thrift 120 minutes 2 people, the protective bolt of its installation can in time be retrieved to the producer and be convenient for utilize, reduce bolt use cost, its support is reliable moreover, high efficiency, realize safely that large-scale permanent magnetism directly drives aerogenerator rotor yoke face protection.

The conventional disc type rotor support has the following disadvantages: 1. the upper disc and the lower disc of the traditional disc type rotor support are formed by splicing, assembling and welding the web plate and the vertical ribs on site, the web plate and the vertical ribs are easy to dislocate during manual splicing, the flatness of the outer circles of the upper disc and the lower disc is reduced, and the fatigue fracture is easy to generate at the welding seam position with long service time; 2. the traditional disc type rotor support is formed by welding a hub, an upper disc, a lower disc, a supporting plate, a stud and the like, the welding seam is easy to deform or fatigue fracture after long use, the integrity of the disc type rotor support is poor, and the joints of all parts are easy to loosen; therefore, the permanent magnet direct-drive wind driven generator rotor support is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a permanent-magnet direct-drive wind power generator rotor bracket, the upper disc and the lower disc of the rotor bracket of the utility model are convenient to assemble and have stable structure, are not easy to generate deformation or fatigue fracture at a welding seam, when the upper disc is assembled, the circular buckling pins at two sides of a web plate slide to the inner side walls of the circular buckling grooves at two sides of the outer side wall of a stud (the circular buckling pins do not have sharp angles, and are not easy to generate rigid collision and are damaged or broken), eight web plates and eight studs are assembled into a complete upper disc by using the method, because the upper parts of the studs are provided with welding holes and the welding holes are connected with the circular buckling grooves, the circular buckling pins and the circular buckling grooves can be welded together through the welding holes, the lower disc has the same structure as the upper disc, the same assembling steps, the upper disc and the lower disc are convenient to assemble, the flatness of the excircle is better after the assembly, the structural strength of the upper disc, increase the life of last disc and lower disc, the utility model discloses spider's wholeness is higher, and central body lateral wall upper portion is through trapezoidal buckle round pin and trapezoidal buckle groove and last disc adapter coupling, and central body lateral wall lower part is through trapezoidal buckle round pin and trapezoidal buckle groove and lower disc adapter coupling, welds the reinforcement after connecting, goes up the disc and all has seted up the cotter hole with lower disc surface and has just consolidated the connection through cotter hole, pin and nut, makes spider's joint strength increase, and the junction is difficult for loosely.

The utility model provides a specific technical scheme as follows:

the utility model provides a pair of permanent magnetism directly drives aerogenerator spider, including the centrum, the welding of centrum lateral wall has trapezoidal buckle round pin, central body lateral wall upper portion is through trapezoidal buckle round pin and trapezoidal buckle groove and last disc adaptation connection, central body lateral wall lower part is through trapezoidal buckle round pin and trapezoidal buckle groove and lower disc adaptation connection, go up the disc and all seted up trapezoidal buckle groove with lower disc inside wall, it includes the web and founds the muscle to go up the disc, the welding of web lateral wall has circular buckle round pin, circular buckle round pin is connected with circular buckle groove buckle, circular buckle groove is seted up and is found muscle lateral wall both sides, the web is connected with founding the muscle through circular buckle round pin and circular buckle groove.

Optionally, the upper disc and the lower disc have both been provided with a pin hole on the surface, the pin hole inside wall is connected with a pin, the pin outside wall is provided with an external thread and is detachably connected with a nut through the external thread and the internal thread, and the upper disc and the lower disc are connected through the pin hole, a pin and a nut.

Optionally, the upper portion of the stud is provided with a welding hole, and the welding hole is connected with the circular buckle groove.

Optionally, the material of the central body is 20SiMn cast steel hub, and the material of the upper disc and the material of the lower disc are both 16Mn steel plates.

Optionally, fan-shaped ventilation holes are formed in the surfaces of the upper disc and the lower disc, and the number of the fan-shaped ventilation holes is eight.

The utility model has the advantages as follows:

the embodiment of the utility model provides a permanent magnetism directly drives aerogenerator spider:

1. the upper disc and the lower disc of the rotor support of the utility model are convenient to assemble, have stable structure and are not easy to generate deformation or fatigue fracture at a welding seam, when the upper disc is assembled, the circular buckling pins at the two sides of the web plate slide to the inner side walls of the circular buckling grooves at the two sides of the outer side wall of the stud (the circular buckling pins do not have sharp corners and are not easy to generate rigid collision and be damaged or broken), eight web plates and eight studs are assembled into a complete upper disc by using the method, because the upper parts of the studs are provided with welding holes and the welding holes are connected with the circular buckling grooves, the circular buckling pins and the circular buckling grooves can be welded together through the welding holes, the lower disc has the same structure as the upper disc, the assembling steps are the same, the upper disc and the lower disc are convenient to assemble, the flatness of the excircle is better after the assembly, the structural strength of the upper disc and the lower disc is enhanced, the service lives of, the problem of traditional disc type rotor support's last disc and lower disc when artifical concatenation assembly welding, make web and stud dislocation reduce the excircle roughness of going up disc and lower disc easily, and the long weld joint department of live time produces fatigue fracture easily is solved.

2. The utility model discloses rotor support's wholeness is higher, central body lateral wall upper portion is through trapezoidal buckle round pin and trapezoidal buckle groove and last disc adapter coupling, central body lateral wall lower part is through trapezoidal buckle round pin and trapezoidal buckle groove and lower disc adapter coupling, weld the reinforcement after connecting, go up the disc and all seted up the cotter hole with lower disc surface and pass through the cotter hole, pin and nut reinforcement connection, make rotor support's joint strength increase, the junction is difficult loose, it is relatively poor to solve traditional disc type rotor support's wholeness, the easy not hard up problem of junction of each part.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described 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 without creative efforts.

Fig. 1 is a schematic sectional structure view of a rotor bracket of a direct-drive permanent magnet wind power generator according to an embodiment of the present invention;

fig. 2 is a schematic structural view of an upper disc of a rotor bracket of a permanent magnet direct-drive wind power generator according to an embodiment of the present invention;

fig. 3 is a schematic view illustrating a connection between a web and a stud of a rotor support of a permanent magnet direct-drive wind turbine generator according to an embodiment of the present invention.

In the figure: 1. an upper disc; 101. a web; 102. erecting ribs; 2. a lower disc; 3. a central body; 4. a pin; 5. a nut; 6. a pin hole; 7. a trapezoidal snap groove; 8. a trapezoidal snap pin; 9. welding holes; 10. a circular snap groove; 11. a circular snap pin.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The permanent magnet direct-drive wind driven generator rotor bracket according to the embodiment of the present invention will be described in detail with reference to fig. 1 to 3.

Referring to fig. 1, fig. 2 and fig. 3, the embodiment of the utility model provides a permanent magnetism directly drives aerogenerator spider, including the centrum, the welding of centrum lateral wall has trapezoidal buckle round pin, central body lateral wall upper portion is through trapezoidal buckle round pin and trapezoidal buckle groove and last disc adaptation connection, central body lateral wall lower part is through trapezoidal buckle round pin and trapezoidal buckle groove and lower disc adaptation connection, it has all seted up trapezoidal buckle groove with lower disc inside wall to go up the disc, it includes the web and founds the muscle to go up the disc, the welding of web lateral wall has circular buckle round pin, circular buckle round pin is connected with circular buckle groove buckle, circular buckle groove is seted up and is founded muscle lateral wall both sides, the web is connected with founding the muscle through circular buckle round pin and circular buckle groove.

In the example, the upper disc 1 and the lower disc 2 of the rotor support of the present invention are convenient to assemble, have stable structure, and are not easy to generate deformation or fatigue fracture at the welding seam, when the upper disc 1 is assembled, the circular buckling pins 11 at both sides of the web 101 are slid to the inner side wall of the circular buckling groove 10 at both sides of the outer side wall of the stud 102 (the circular buckling pins 11 are not easy to generate rigid collision and are damaged or broken because of no sharp angle), the eight webs 101 and the eight studs 102 are assembled into a complete upper disc 1 by using the method, because the upper portions of the studs 102 are provided with the welding holes 9 and the welding holes 9 are connected with the circular buckling grooves 10, the circular buckling pins 11 and the circular buckling grooves 10 can be welded together through the welding holes 9, the lower disc 2 has the same structure as the upper disc 1, the assembling steps are the same, the upper disc 1 and the lower disc 2 are convenient to assemble, the flatness of the outer circle after the assembly is better, and the structural strength of the upper disc, increase the life of disc 1 and lower disc 2, the utility model discloses rotor support's wholeness is higher, central body 3 lateral wall upper portion is through trapezoidal buckle round pin 8 and trapezoidal buckle groove 7 and last disc 1 adaptation connection, central body 3 lateral wall lower part is through trapezoidal buckle round pin 8 and trapezoidal buckle groove 7 and lower disc 2 adaptation connection, weld the reinforcement after connecting, go up disc 1 and disc 2 surface down and all seted up cotter hole 6 and through cotter hole 6, pin 4 and nut 5 reinforcement connection, make rotor support's joint strength increase, the junction is difficult for loosely.

Referring to fig. 1, the surfaces of the upper disc 1 and the lower disc 2 are provided with pin holes 6, the inner side walls of the pin holes 6 are connected with pins 4, the outer side walls of the pins 4 are provided with external threads and are detachably connected with nuts 5 through the external threads and the internal threads, and the upper disc 1 and the lower disc 2 are connected through the pin holes 6, the pins 4 and the nuts 5.

In an example, the threaded connection is stable and convenient to install and disassemble.

Referring to fig. 2 and 3, a welding hole 9 is formed in the upper portion of the stud 102, and the welding hole 9 is connected with the circular fastening groove 10.

Illustratively, the upper portion of the stud 102 is provided with a welding hole 9, the welding hole 9 is connected with the circular buckle groove 10, the circular buckle pin 11 and the circular buckle groove 10 can be welded together through the welding hole 9, and the connection strength of the circular buckle pin 11 and the circular buckle groove 10 is increased.

Referring to fig. 1 and 2, the central body 3 is made of 20SiMn cast steel hub, and the upper disc 1 and the lower disc 2 are made of 16Mn steel plate.

Illustratively, the material of the central body 3 is 20SiMn cast steel hub, and the material of the upper disc 1 and the lower disc 2 are both 16Mn steel plates, which are hard and difficult to rust.

Referring to fig. 2, fan-shaped vent holes are formed in the surfaces of the upper disc 1 and the lower disc 2, and the number of the fan-shaped vent holes is eight.

In the example, fan-shaped vent holes are formed in the surfaces of the upper disc 1 and the lower disc 2, and the number of the fan-shaped vent holes is eight, so that ventilation and heat dissipation are facilitated.

When the method is used, the web plate 101, the vertical ribs 102, the central body 3, the pins 4, the nuts 5 and the like are transported to a destination, when the disc 1 is assembled, the circular buckling pins 11 on two sides of the web plate 101 are slid to the inner side walls of the circular buckling grooves 10 on two sides of the outer side wall of the vertical ribs 102 (the circular buckling pins 11 are not easy to generate rigid collision and are damaged or broken due to no sharp corners), eight web plates 101 and eight vertical ribs 102 are assembled into a complete upper disc 1 by using the method, because the upper parts of the vertical ribs 102 are provided with the welding holes 9 and the welding holes 9 are connected with the circular buckling grooves 10, the circular buckling pins 11 and the circular buckling grooves 10 can be welded together through the welding holes 9, the lower disc 2 has the same structure as the upper disc 1 and the same assembly steps as the upper disc 1, the upper disc 1 and the lower disc 2 are convenient to assemble, the flatness of the excircle after the assembly is good, the structural strength of the upper disc 1 and the lower disc 2 is enhanced, then with 3 lateral wall upper portions of body through trapezoidal buckle round pin 8 and trapezoidal buckle groove 7 with last disc 1 adaptation connection, 3 lateral wall lower parts of body are through trapezoidal buckle round pin 8 and

trapezoidal buckle groove

7 and 2 adaptation connections of disc down, weld the reinforcement after connecting, go up

disc

1 and 2 surfaces of disc down and have all seted up cotter hole 6 and through cotter hole 6, pin 4 and nut 5 reinforcement connection, make rotor support's joint strength increase, the junction is difficult for loosely.

The utility model relates to a permanent-magnet direct-drive wind power generator rotor bracket, which comprises a bracket 1 and an upper disc; 101. a web; 102. erecting ribs; 2. a lower disc; 3. a central body; 4. a pin; 5. a nut; 6. a pin hole; 7. a trapezoidal snap groove; 8. a trapezoidal snap pin; 9. welding holes; 10. a circular snap groove; 11. the structure and the principle of the circular snap pin, which are all universal standard parts or parts known to those skilled in the art, can be known to those skilled in the art through technical manuals or through routine experimentation.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A permanent magnet direct-drive wind driven generator rotor support comprises a central body (3) and is characterized in that a trapezoidal buckling pin (8) is welded on the outer side wall of the central body (3), the upper portion of the outer side wall of the central body (3) is in adaptive connection with an upper disc (1) through the trapezoidal buckling pin (8) and a trapezoidal buckling groove (7), the lower portion of the outer side wall of the central body (3) is in adaptive connection with a lower disc (2) through the trapezoidal buckling pin (8) and the trapezoidal buckling groove (7), the inner side walls of the upper disc (1) and the lower disc (2) are respectively provided with the trapezoidal buckling groove (7), the upper disc (1) comprises a web plate (101) and a vertical rib (102), the outer side wall of the web plate (101) is welded with a circular buckling pin (11), the circular buckling pin (11) is in buckling connection with a circular buckling groove (10), the circular buckling groove (10) is formed in, the web (101) is connected with the stud (102) through a circular buckle pin (11) and a circular buckle groove (10).

2. The rotor bracket of the permanent-magnet direct-drive wind driven generator according to claim 1, characterized in that pin holes (6) are formed in the surfaces of the upper disc (1) and the lower disc (2), the inner side walls of the pin holes (6) are connected with pins (4), external threads are formed in the outer side walls of the pins (4) and detachably connected with nuts (5) through the external threads and the internal threads, and the upper disc (1) and the lower disc (2) are connected through the pin holes (6), the pins (4) and the nuts (5).

3. The rotor bracket of the direct-drive permanent magnet wind power generator as claimed in claim 1, wherein the upper part of the stud (102) is provided with a welding hole (9), and the welding hole (9) is connected with the circular buckling groove (10).

4. The rotor bracket of the permanent magnet direct-drive wind driven generator as claimed in claim 1, wherein the central body (3) is made of 20SiMn cast steel hub, and the upper disc (1) and the lower disc (2) are both made of 16Mn steel plate.

5. The rotor bracket of the permanent magnet direct-drive wind driven generator as claimed in claim 1, wherein the surfaces of the upper disc (1) and the lower disc (2) are provided with eight fan-shaped vent holes.