CN201956844U - Squirrel cage type direct-drive wind turbine generator with integral high strength rotor structure - Google Patents
Squirrel cage type direct-drive wind turbine generator with integral high strength rotor structure Download PDFInfo
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- CN201956844U CN201956844U CN2011200452477U CN201120045247U CN201956844U CN 201956844 U CN201956844 U CN 201956844U CN 2011200452477 U CN2011200452477 U CN 2011200452477U CN 201120045247 U CN201120045247 U CN 201120045247U CN 201956844 U CN201956844 U CN 201956844U
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Abstract
The utility model relates to a squirrel cage type direct-drive wind turbine generator with an integral high strength rotor structure and adopts two-side bearing tubular supporting, compared with a generator utilizing single bearing cup-shaped supporting, the rigidity of a rotor is improved, the uniformity of a first air gap and a second air gap is increased and the overall performance of a motor is enhanced; the impact on a front bearing caused by the rotor is deceased, the failure rate of the bearing is lowered and the service life of the bearing is increased. The rotor supporting cylinder body is in a very compact limited space, reinforcing ribs are additionally installed on the inner wall of the rotor supporting cylinder body, therefore, the rigidity and strength are greatly enhanced, an effective inner rotor iron-core axial airway is formed and the installation of the squirrel cage inner rotor is easy. An outer rotor is of squirrel cage type, centralized on a supporting cylinder and is matched with an inner stator and an outer stator respectively. The squirrel cage type direct-drive wind turbine generator with the integral high strength rotor structure has the advantages of compact structure, simple fabrication process and low cost, solves the problems of difficult fixation and heating of magnetic steel in a permanent magnet type rotor and greatly lowers the failure rate of the motor.
Description
Technical field
The utility model relates to the direct wind-driven generator technical field, is specifically related to a kind of mouse-cage type direct wind-driven generator of integrated highly stressed rotor structure.
Background technology
Existing large-scale direct wind-driven generator adopts magneto alternator mostly, it is made up of a stator and a p-m rotor, rotor generally adopts single shaft to hold radial cup-shaped barrel support, because its cup-shaped inner barrel space is big, can arrange the spoke reinforcement easily in the rotor supports inner barrel, with intensity and the rotating torque requirement of satisfying the high-power low-speed motor.
Along with direct-drive aerogenerator develops towards obtaining higher power density and economic and practical direction, the new construction that a kind of compact double-stator permanent magnet directly drives generator has appearred, it is for the ease of installing, rotor still holds the support cup-like structure for single shaft, the rotor supports tube of this structure is installed the external rotor iron core outward, the internal rotor iron core is installed in the support tube, the rotor supports tube is directly connected on the wheel hub, be subjected to rotating torque and load big, the internal rotor space is very compact, be difficult to arrange that radial spoke strengthens, and epitrochanterian weight is much larger than magneto list stator single-rotor motor, moment of torsion is big, Heavy Weight, if internal rotor is directly installed on cup-shaped and supports cylinder inboard wall, then exist space structure to arrange that difficulty is big, the strength and stiffness deficiency, rotor supports cylindrical shell heaviness is installed difficult problem and the thermal diffusivity problem made.
The utility model content
The purpose of this utility model provides a kind of mouse-cage type direct wind-driven generator of integrated highly stressed rotor structure, improving the rotor structure rigidity and the intensity of existing large-scale compact nested type direct wind-driven generator, and is convenient to the internal rotor cooling of ventilating.
The technical solution of the utility model is as follows:
A kind of mouse-cage type direct wind-driven generator of integrated highly stressed rotor structure comprises squirrel-cage bar, internal rotor damping ring and front end bearing assembly in rear end bearing assembly, rotor cylindrical shell support ring, high strength connecting bolt, integrated form rotor supports tube, external rotor damping ring, external rotor squirrel-cage bar unshakable in one's determination, external rotor iron core, internal rotor iron core, the internal rotor core slots;
Squirrel-cage bar, internal rotor damping ring are installed on the integrated form rotor supports tube in external rotor iron core, external rotor squirrel-cage bar unshakable in one's determination, external rotor damping ring and internal rotor iron core, the internal rotor core slots;
The external rotor iron core is fixed in integrated form rotor supports drum outer wall, and the outer rotor iron core squirrel-cage bar is installed in the groove of external rotor outer ring unshakable in one's determination, and the end of the end face of external rotor damping ring and each outer rotor iron core squirrel-cage bar is integrally welded; The internal rotor iron core is fixed in integrated form rotor supports tube inwall, and internal rotor squirrel-cage bar unshakable in one's determination is installed in the groove of internal rotor inner ring unshakable in one's determination, and the end of squirrel-cage bar is integrally welded in the end face of internal rotor damping ring and each internal rotor core slots;
The front end of integrated form rotor supports tube is supported on the dead axle by the front end bearing assembly, and its rear end is supported on the dead axle by rotor cylindrical shell support ring and rear end bearing assembly, and integrated form rotor supports tube and rotor cylindrical shell support ring are fixed by the high strength connecting bolt; Internal stator and ring holder are fixed on the hollow dead axle.
Its further technical scheme is:
Be provided with a circle first reinforcement between the inwall of described integrated form rotor supports tube and the internal rotor iron core, the shaft shoulder place in the described integrated form rotor supports tube outside is welded with a circle second reinforcement.
Described first reinforcement forms recessed fillet at the inside corner place.
Useful technique effect of the present utility model is:
(1) the utility model rotor adopts bilateral bearing tubular to support, and holds the cup-shaped support motor with single shaft and compares, and has improved the rigidity of rotor, has strengthened the uniformity of first air gap and interstice, has improved the motor overall performance; Reduced the impact of rotor, reduced the bearing fault rate, improved bearing life preceding end bearing.
(2) rotor supports cylindrical shell of the present utility model is in limited very compact space, and barrel increases reinforcement within it, makes rigidity and intensity strengthen greatly, and forms effective internal rotor stalk to air duct, and be convenient to the installation of mouse cage internal rotor.
(3) the utility model inner and outer rotors is a squirrel-cage, concentrates on the support tube, cooperates with interior external stator respectively.Compact conformation, manufacturing processing technic is simple, reduces cost; It is fixing difficult to have saved the magneto rotor magnetic steel, and problems such as magnet steel heating greatly reduce the failure rate of motor.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the cutaway view of the integrated form rotor supports tube strengthened in the utility model.
Fig. 3 is the stereogram of the integrated form rotor supports tube strengthened in the utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further.
As shown in Figure 1, the utility model comprises squirrel-cage bar 9, internal rotor damping ring 10 and front end bearing assembly 11 in rear end bearing assembly 1, rotor cylindrical shell support ring 2, high strength connecting bolt 3, integrated form rotor supports tube 4, external rotor damping ring 5, external rotor squirrel-cage bar 6 unshakable in one's determination, external rotor iron core 7, internal rotor iron core 8, the internal rotor core slots.
As shown in Figure 1, squirrel-cage bar 9, internal rotor damping ring 10 all are installed on the integrated form rotor supports tube 4 in external rotor iron core 7, external rotor squirrel-cage bar 6 unshakable in one's determination, external rotor damping ring 5 and internal rotor iron core 8, the internal rotor core slots.External rotor iron core 7 is fixed in integrated form rotor supports tube 4 outer walls, and outer rotor iron core squirrel-cage bar 6 is installed in the groove of external rotor 7 outer rings unshakable in one's determination, and the end of the end face of external rotor damping ring 5 and each outer rotor iron core squirrel-cage bar 6 is integrally welded; Internal rotor iron core 8 is fixed in integrated form rotor supports tube 4 inwalls, and internal rotor squirrel-cage bar 9 unshakable in one's determination is installed in the groove of internal rotor 8 inner rings unshakable in one's determination, and the end of squirrel-cage bar 9 is integrally welded in the end face of internal rotor damping ring 10 and each internal rotor core slots.Because inner and outer rotors of the present utility model is squirrel-cage.Compare with existing magneto rotor, solved the fixation problem that surface, rotor outer ring upper magnetic steel overcomes centrifugal force, avoided the big problems of difficulty such as permanent magnet processing, manufacturing, installation, anufacturability improves greatly, and cost reduces.
As shown in Figure 1, the front end of integrated form rotor supports tube 4 is supported on the dead axle 15 by front end bearing assembly 11, its rear end is supported on the dead axle 15 by rotor cylindrical shell support ring 2 and rear end bearing assembly 1, and integrated form rotor supports tube 4 is fixing by high strength connecting bolt 3 with rotor cylindrical shell support ring 2.Internal stator and ring holder 16 are fixed on the hollow dead axle 15.Because integrated form rotor supports tube 4 by former and later two bearings, has improved the rigidity of rotor, has strengthened the uniformity of first air gap and interstice, has improved the overall performance of motor; Whole integrated rotor drives low-speed running by front end wheel hub 14, and realization rotor rigidity height, air gap are evenly, the bearing impact is little, failure rate is low.
As Fig. 1, Fig. 2, shown in Figure 3, be provided with a circle first reinforcement 12 between the inwall of integrated form rotor supports tube 4 and the internal rotor iron core 8, the shaft shoulder place in described integrated form rotor supports tube 4 outsides is welded with a circle second reinforcement 13.First reinforcement 12 forms recessed fillet at the stress raiser of inside corner.The be arranged so that rigidity and the intensity of first reinforcement 12 and second reinforcement 13 are strengthened greatly, satisfying the requirement of its high pulling torque and the big weight load of rotor, and form effective internal rotor stalk to air duct, and are convenient to the mouse cage internal rotor and install.
Above-described only is preferred implementation of the present utility model, and the utility model is not limited to above embodiment.Be appreciated that other improvement and variation that those skilled in the art directly derive or associate under the prerequisite that does not break away from spirit of the present utility model and design, all should think to be included within the protection range of the present utility model.
Claims (3)
1. the mouse-cage type direct wind-driven generator of an integrated highly stressed rotor structure is characterized in that: comprise squirrel-cage bar (9), internal rotor damping ring (10) and front end bearing assembly (11) in rear end bearing assembly (1), rotor cylindrical shell support ring (2), high strength connecting bolt (3), integrated form rotor supports tube (4), external rotor damping ring (5), external rotor squirrel-cage bar (6) unshakable in one's determination, external rotor iron core (7), internal rotor iron core (8), the internal rotor core slots;
External rotor iron core (7), external rotor squirrel-cage bar (6) unshakable in one's determination, external rotor damping ring (5) and internal rotor iron core 8, the interior squirrel-cage bar of internal rotor core slots (9, internal rotor damping ring (10) is installed on the integrated form rotor supports tube (4);
External rotor iron core (7) is fixed in integrated form rotor supports tube (4) outer wall, outer rotor iron core squirrel-cage bar (6) is installed in the groove of external rotor iron core (7) outer ring, and the end of the end face of external rotor damping ring (5) and each outer rotor iron core squirrel-cage bar (6) is integrally welded; Internal rotor iron core (8) is fixed in integrated form rotor supports tube (4) inwall, (9 are installed in the groove of internal rotor iron core (8) inner ring internal rotor squirrel-cage bar unshakable in one's determination, and the end of squirrel-cage bar (9) is integrally welded in the end face of internal rotor damping ring (10) and each internal rotor core slots;
The front end of integrated form rotor supports tube (4) is supported on the dead axle (15) by front end bearing assembly (11), its rear end is supported on the dead axle (15) by rotor cylindrical shell support ring (2) and rear end bearing assembly (1), and integrated form rotor supports tube (4) is fixing by high strength connecting bolt (3) with rotor cylindrical shell support ring (2); Internal stator and ring holder (16) are fixed on the hollow dead axle (15).
2. according to the mouse-cage type direct wind-driven generator of the described integrated highly stressed rotor structure of claim 1, it is characterized in that: be provided with circle first reinforcement (12) between the inwall of described integrated form rotor supports tube (4) and the internal rotor iron core (8), the shaft shoulder place in described integrated form rotor supports tube (4) outside is welded with circle second reinforcement (13).
3. according to the mouse-cage type direct wind-driven generator of the described integrated highly stressed rotor structure of claim 2, it is characterized in that: described first reinforcement (12) forms recessed fillet at the inside corner place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200452477U CN201956844U (en) | 2011-02-23 | 2011-02-23 | Squirrel cage type direct-drive wind turbine generator with integral high strength rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200452477U CN201956844U (en) | 2011-02-23 | 2011-02-23 | Squirrel cage type direct-drive wind turbine generator with integral high strength rotor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201956844U true CN201956844U (en) | 2011-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200452477U Expired - Lifetime CN201956844U (en) | 2011-02-23 | 2011-02-23 | Squirrel cage type direct-drive wind turbine generator with integral high strength rotor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201956844U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142748A (en) * | 2011-02-23 | 2011-08-03 | 中科盛创（青岛）电气有限公司 | Squirrel-cage type direct-driven wind power generator with integrated high-strength rotor structure |
| CN103595159A (en) * | 2013-09-12 | 2014-02-19 | 江苏大学 | Doubly salient double squirrel cage outer rotor structure of stator permanent magnet dual-rotor motor |
-
2011
- 2011-02-23 CN CN2011200452477U patent/CN201956844U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142748A (en) * | 2011-02-23 | 2011-08-03 | 中科盛创（青岛）电气有限公司 | Squirrel-cage type direct-driven wind power generator with integrated high-strength rotor structure |
| CN102142748B (en) * | 2011-02-23 | 2012-08-08 | 中科盛创（青岛）电气有限公司 | Squirrel-cage type direct-driven wind power generator with integrated high-strength rotor structure |
| CN103595159A (en) * | 2013-09-12 | 2014-02-19 | 江苏大学 | Doubly salient double squirrel cage outer rotor structure of stator permanent magnet dual-rotor motor |
| CN103595159B (en) * | 2013-09-12 | 2016-08-17 | 江苏大学 | The double mouse cage outer-rotor structure of the double-salient-pole of a kind of stator permanent-magnet double-rotor machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110831 Effective date of abandoning: 20120808 |