CN212909251U - Lightweight two-pole generator - Google Patents
Lightweight two-pole generator Download PDFInfo
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- CN212909251U CN212909251U CN202021161737.9U CN202021161737U CN212909251U CN 212909251 U CN212909251 U CN 212909251U CN 202021161737 U CN202021161737 U CN 202021161737U CN 212909251 U CN212909251 U CN 212909251U
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- weight
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- stator
- end cover
- annular
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- 230000005284 excitation Effects 0.000 claims abstract description 37
- 238000009434 installation Methods 0.000 claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 238000003466 welding Methods 0.000 claims description 11
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 230000017525 heat dissipation Effects 0.000 claims description 6
- 238000004080 punching Methods 0.000 description 6
- 210000000078 claw Anatomy 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
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Abstract
The utility model discloses a light-weight two-pole generator, belonging to the field of generators, the utility model discloses a light-weight two-pole generator, which comprises an annular cylinder body, wherein a plurality of mounting blocks are equidistantly arranged on the inner side wall at one end of the annular cylinder body, and excitation stators are fixedly mounted; every the installation piece is followed the radial direction of annular barrel all is provided with the connecting hole, the installation piece with the one end that the excitation stator contacted is provided with spacing breach, the excitation stator is located in the spacing breach, the connecting hole intercommunication spacing breach. The excitation stator can be conveniently and accurately installed and fixed on the installation block and is firmly fixed; meanwhile, the weight of the rear end cover can be greatly reduced without fixing the excitation stator, so that the overall weight of the generator is reduced.
Description
Technical Field
The utility model relates to a generator field especially relates to a lightweight two-pole generator.
Background
With the higher market demand, the weight and volume of the generator are required to be higher. In order to improve the market competitiveness of the generator product, the overall size of the generator is required to be reduced, namely the generator is small in size and light in weight.
The Chinese patent document publication No. CN204349649U discloses a 200kW lightweight generator, which mainly comprises a front end cover, a stator, a rotor, a rear end cover and an exciter stator; the method is characterized in that: the front end cover and the rear end cover are both arranged on the stator, and the rotor is arranged on the front end cover and the rear end cover; the front end cover and the rear end cover are made of cast aluminum alloy pieces, the exciter stator core with the winding and the rear end cover form an exciter stator, the stator winding span adopts 3/4 pitch, the coil type adopts unequal-turn double-layer lap windings, and the generator is free of a box body and is of a single-support structure.
In order to fix an excitation stator conveniently, a claw disc is generally arranged on a rear end cover of the conventional generator for fixing, and the weight of the rear end cover is greatly improved by the fixing mode, so that the generator is heavy; meanwhile, the excitation stator is not stable enough and convenient to install due to the fixing mode.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to solve the technical problem that a lightweight two-pole generator is proposed, will excite stator and rear end cap separation installation, can guarantee simultaneously that the excitation stator installation is firm and fix a position accurately, and rear end cap weight can reduce by a wide margin to make whole generator weight reduce.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a light-weight two-pole generator, which comprises an annular cylinder body, wherein a plurality of mounting blocks are equidistantly arranged on the inner side wall at one end of the annular cylinder body so as to fixedly mount an excitation stator; every the installation piece is followed the radial direction of annular barrel all is provided with the connecting hole, the installation piece with the one end that the excitation stator contacted is provided with spacing breach, the excitation stator is located in the spacing breach, the connecting hole intercommunication spacing breach.
The utility model has the preferable technical proposal that the utility model also comprises a rear end cover, the outer side wall of the rear end cover is provided with a plurality of triangular connecting lugs, and the outer side wall of the annular cylinder body is provided with the rear connecting lugs matched with the triangular connecting lugs; one side that the rear end cap middle part is close to excitation stator is provided with the bearing mount table, the bearing mount table is provided with the annular all around and alleviates the groove, the annular alleviates in the groove equidistance and is provided with a plurality of enhancement edges, strengthen the edges with the bearing mount table is connected as an organic wholely.
The utility model has the preferable technical proposal that one end of the annular cylinder body is provided with a front end cover, the outer side wall of the front end cover is provided with a triangular connection lug, and the outer side wall of the annular cylinder body is provided with a front connection lug matched with the triangular connection lug; the front end cover is only provided with a flange ring at the edge, and the flange ring is provided with a plurality of connecting threaded holes for driving the generator to operate.
The utility model discloses preferred technical scheme lies in, the annular barrel is close to the lateral wall of front end housing one end is provided with the long waist type ventilation hole of a plurality of.
The utility model discloses preferred technical scheme lies in, still includes stator core, the stator core outside is provided with a plurality of arc arch, the arc arch with annular barrel inside wall interference fit, the protruding both sides of arc with annular barrel inside wall forms the axial ventiduct.
The utility model has the preferable technical proposal that the stator core comprises a plurality of stator iron sheets which are welded together in a laminating way, and the middle part of each arc-shaped raised edge is provided with an arc-shaped groove for welding; and arc-shaped grooves for welding are arranged in the middle of the edges of the stator iron sheets of the air duct.
The utility model discloses preferred technical scheme lies in, the protruding middle part of arc is provided with a plurality of axial ventilation hole.
The utility model discloses preferred technical scheme lies in, annular barrel is close to the one end lateral wall of rear end cap is provided with a plurality of louvres.
The utility model discloses preferred technical scheme lies in, the bellied arc wall of arc of stator core tip with annular barrel intersection is provided with the solder joint, with inciting somebody to action stator core with annular barrel is fixed.
The utility model has the advantages that:
the utility model provides a light-weight two-pole generator, which comprises an annular cylinder body, wherein a plurality of mounting blocks are equidistantly arranged on the inner side wall at one end of the annular cylinder body so as to fixedly mount an excitation stator; every the installation piece is followed the radial direction of annular barrel all is provided with the connecting hole, the installation piece with the one end that the excitation stator contacted is provided with spacing breach, the excitation stator is located in the spacing breach, the connecting hole intercommunication spacing breach. The excitation stator can be conveniently and accurately installed and fixed on the installation block and is firmly fixed; meanwhile, the weight of the rear end cover can be greatly reduced without fixing the excitation stator, so that the overall weight of the generator is reduced.
Drawings
Fig. 1 is a schematic half-sectional view of a lightweight two-pole generator according to an embodiment of the present invention;
FIG. 2 is a schematic view of a rear end cap according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a front end cap according to an embodiment of the present invention;
fig. 4 is a schematic view of a stator iron sheet provided in an embodiment of the present invention;
fig. 5 is a schematic view of an assembly of a stator core and an annular cylinder provided in an embodiment of the present invention;
fig. 6 is a schematic view of a mounting block structure provided in an embodiment of the present invention;
fig. 7 is an enlarged schematic view of a portion a of fig. 6 according to an embodiment of the present invention;
in the figure:
1. a front end cover; 2. an annular cylinder; 3. a stator iron sheet; 4. an excitation stator; 5. a rear end cap; 6. mounting blocks; 7. a stator core; 11. a flange ring; 12. a front engaging lug; 21. a long waist-shaped vent; 22. heat dissipation holes; 23. a triangular connecting lug; 31. an arc-shaped slot; 32. an arc-shaped bulge; 33. an axial vent; 34. an axial air duct; 51. a bearing mounting table; 52. reinforcing ribs; 53. an annular relief groove; 54. a rear connecting lug; 61. connecting holes; 62. and limiting the gap.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1-7, a light-weight two-pole generator comprises an annular cylinder 2, wherein a plurality of mounting blocks 6 are equidistantly arranged on the inner side wall of one end of the annular cylinder 2 so as to fixedly mount an excitation stator 4; every installation piece 6 is followed the radial direction of annular barrel 2 all is provided with connecting hole 61, installation piece 6 with the one end of excitation stator 4 contact is provided with spacing breach 62, excitation stator 4 is located in spacing breach 62, connecting hole 61 intercommunication spacing breach 62. The traditional generator generally fixes the excitation stator 4 on the rear end cover 5, generally sets a claw disc for fixing the excitation stator 4 on the rear end cover 5, and simultaneously, in order to facilitate production, the claw disc and the rear end cover 5 are integrally cast, so that the rear end cover 5 has a large weight. Through the design of a plurality of small installation blocks 6, the excitation stator 4 can be conveniently fixed in the annular cylinder 2, so that the claw disc can be removed from the rear end cover 5, and the overall quality of the generator is reduced; by installing the excitation stator 4 inside the annular cylinder 2, magnetic flux leakage can be reduced. The mounting block 6 is provided with a connecting hole 61, and the mounting block 6 can be fixed at a designated position inside the annular cylinder 2 by connecting the bolt with the connecting hole 61, and then the mounting block 6 is fixed inside the annular cylinder 2 by welding. The excitation stator 4 can be accurately installed through the design of the limiting notch 62, and then the excitation stator 4 can be conveniently fixed by passing through the connecting hole 61 through a bolt to be connected with the excitation stator 4.
Preferably, the device further comprises a rear end cover 5, a plurality of triangular connecting lugs 23 are arranged on the outer side wall of the rear end cover 5, and a rear connecting lug 54 matched with the triangular connecting lugs 23 is arranged on the outer side wall of the annular cylinder 2; the middle of the rear end cover 5 is provided with a bearing mounting table 51 on one side close to the excitation stator 4, an annular lightening groove 53 is formed in the periphery of the bearing mounting table 51, a plurality of reinforcing ribs 52 are equidistantly arranged in the annular lightening groove 53, and the reinforcing ribs 52 are connected with the bearing mounting table 51 into a whole. The connecting position of the rear end cover 5 is arranged on the outer side wall of the annular cylinder body 2, the installation of the block 6 can be facilitated, the installation of the excitation stator 4 is more convenient, and the problem does not need to be considered when the excitation stator 4 and the rear end cover 5 are fixed into a whole. Under the condition that the excitation stator 4 does not need to be fixed, the rear end cover 5 only needs to be provided with the bearing mounting table 51 for mounting the bearing in the middle, and meanwhile, the annular lightening grooves 53 can be arranged around the rear end cover 5, so that the weight of the rear end cover 5 can be greatly reduced, and the whole weight of the generator is lower. Simultaneously for further support stability and the support intensity of reinforcing bearing mount table 51 to the bearing, add around bearing mount table 51 and establish and strengthen arris strip 52, can play better supporting role to bearing mount table 51 to make the bearing can more firm stable installation, improve the stability of generator operation.
In order to further reduce the overall weight, a front end cover 1 is arranged at one end of the annular cylinder 2, a triangular connection lug 23 is arranged on the outer side wall of the front end cover 1, and a front connection lug 12 matched with the triangular connection lug 23 is arranged on the outer side wall of the annular cylinder 2; the front end cover 1 is only provided with a flange ring 11 at the edge, and the flange ring 11 is provided with a plurality of connection threaded holes for driving the generator running equipment. Arranging the outer edge of the front end cover 1 at the connecting part of the front end cover 1 and the annular cylinder 2, and only retaining the front flange ring 11 without ribs and rear flange surfaces of the front end cover 1; the flange ring 11 of the front end cover 1 is of a standard size of a generator, is fixedly connected with the front connecting lug 12 on the annular cylinder 2 through bolts, reduces weight, is installed without a protective cover, saves structural parts, and is convenient and simple to install. Generally, the front end cover 1 is provided with a vent hole, and after the front end cover 1 is optimized, the front end cover 1 does not have too much space to provide a lightening hole, so as to ensure a sufficient heat dissipation air channel; further, in order to ensure the heat dissipation performance of the front end, the outer side wall of the annular cylinder 2 close to one end of the front end cover 1 is provided with a plurality of long waist-shaped vent holes 21. So that the air can circulate as it is, and the heat dissipation effect is not influenced too much.
In order to further reduce the self weight of the generator, the stator core 3 comprises a plurality of stator iron sheets 3 which are welded together in a laminated manner, and the middle part of the edge of each arc-shaped bulge 32 is provided with an arc-shaped groove 31 for welding; and arc-shaped grooves 31 for welding are formed in the middle of the edges of the stator iron sheets 3 of the air duct. The stator is formed by stator punching lamination, and the stator punching is whole towards the piece, and the iron core does not have clamping ring and cramp isotructure, forms through the welding of the last semicircle groove of stator punching, and 8 welding seams of stator punching excircle equipartition guarantee that the iron core is reliable and stable. The weight of the stator core 3 can be reduced, and the stator core 3 can also be stably installed in the annular cylinder 2. A plurality of stator punching sheets are welded into a whole through the arc-shaped groove 31, and the area of the inner side surface of the arc-shaped groove 31 is large, so that the stator punching sheets are more firmly welded and connected.
Preferably, still include stator core 3, the 3 outsides of stator core are provided with the protruding 32 of a plurality of arc, the protruding 32 of arc with 2 inside wall interference fit of annular barrel, the protruding 32 both sides of arc with the 2 inside wall of annular barrel forms axial ventilation way 34. Set up a plurality of arc archs 32 and 2 inside wall interference fit of annular barrel, can be with the firm joint of stator core 3 inside annular barrel 2, better axial ventilation condition can be kept in the design of a plurality of axial ventiduct 34, and can alleviate stator core 3's weight.
Preferably, a plurality of axial vent holes 33 are formed in the middle of the arc-shaped protrusion 32. Can play a role in lightening and simultaneously can ensure enough strength. Preferably, a plurality of heat dissipation holes 22 are formed in the side wall of one end of the annular cylinder 2 close to the rear end cover 5. The circulation of the air of being convenient for to make the radiating effect good. Air enters from the side wall of one end of the annular cylinder 2, and flows out from the other end.
Preferably, a welding spot is arranged at the intersection of the arc groove 31 of the arc protrusion 32 at the end of the stator core 3 and the annular cylinder 2, so as to fix the stator core 3 and the annular cylinder 2. Stator core 3 passes through interference fit's mode joint in annular barrel 2, for more firm fixed, welds at stator core 3's both ends simultaneously.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (9)
1. A lightweight two-pole generator is characterized in that:
the excitation device comprises an annular cylinder (2), wherein a plurality of mounting blocks (6) are arranged on the inner side wall of one end of the annular cylinder (2) at equal intervals so as to fixedly mount an excitation stator (4);
every installation piece (6) are followed the radial direction of annular barrel (2) all is provided with connecting hole (61), installation piece (6) with the one end of excitation stator (4) contact is provided with spacing breach (62), excitation stator (4) are located in spacing breach (62), connecting hole (61) intercommunication spacing breach (62).
2. The light-weight two-pole generator of claim 1, wherein:
the rear end cover (5) is further included, a plurality of triangular connecting lugs (23) are arranged on the outer side wall of the rear end cover (5), and rear connecting lugs (54) matched with the triangular connecting lugs (23) are arranged on the outer side wall of the annular cylinder (2);
rear end cap (5) middle part is close to one side of excitation stator (4) is provided with bearing mount table (51), bearing mount table (51) is provided with the annular all around and alleviates groove (53), the annular alleviates and is provided with a plurality of enhancement edges and strips (52) in groove (53) equidistant, strengthen edges and strips (52) with bearing mount table (51) are connected as an organic wholely.
3. The light-weight two-pole generator of claim 2, wherein:
a front end cover (1) is arranged at one end of the annular cylinder body (2), a triangular connecting lug (23) is arranged on the outer side wall of the front end cover (1), and a front connecting lug (12) matched with the triangular connecting lug (23) is arranged on the outer side wall of the annular cylinder body (2);
the front end cover (1) is only provided with a flange ring (11) at the edge, and the flange ring (11) is provided with a plurality of connection threaded holes for driving the generator running equipment.
4. The light-weight two-pole generator of claim 3, wherein:
the outer side wall of one end, close to the front end cover (1), of the annular cylinder body (2) is provided with a plurality of long waist-shaped vent holes (21).
5. The light-weight two-pole generator of any one of claims 1 to 4, wherein:
still include stator core (7), stator core (7) outside is provided with the protruding (32) of a plurality of arc, the protruding (32) of arc with annular barrel (2) inside wall interference fit, the protruding (32) both sides of arc with annular barrel (2) inside wall forms axial ventiduct (34).
6. The light-weight two-pole generator of claim 5, wherein:
the stator core (7) comprises a plurality of stator iron sheets (3) which are welded together in a laminated manner, and the middle part of the edge of each arc-shaped bulge (32) is provided with an arc-shaped groove (31) for welding; arc-shaped grooves (31) for welding are formed in the middle of the edge of the stator iron sheet (3) of the air duct.
7. The light-weight two-pole generator of claim 5, wherein:
the middle part of the arc-shaped bulge (32) is provided with a plurality of axial vent holes (33).
8. The light-weight two-pole generator of claim 2, wherein:
the side wall of one end, close to the rear end cover (5), of the annular cylinder body (2) is provided with a plurality of heat dissipation holes (22).
9. The light-weight two-pole generator of claim 6, wherein:
the intersection of the arc-shaped groove (31) of the arc-shaped protrusion (32) at the end part of the stator core (7) and the annular cylinder body (2) is provided with a welding spot, so that the stator core (7) and the annular cylinder body (2) are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021161737.9U CN212909251U (en) | 2020-06-19 | 2020-06-19 | Lightweight two-pole generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021161737.9U CN212909251U (en) | 2020-06-19 | 2020-06-19 | Lightweight two-pole generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212909251U true CN212909251U (en) | 2021-04-06 |
Family
ID=75279102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021161737.9U Expired - Fee Related CN212909251U (en) | 2020-06-19 | 2020-06-19 | Lightweight two-pole generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212909251U (en) |
-
2020
- 2020-06-19 CN CN202021161737.9U patent/CN212909251U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210406 |