CN201956842U - Nested mouse cage type direct driving wind generator with three-stator structure - Google Patents

Abstract

The utility model relates to a nested mouse cage type direct driving wind generator with a three-stator structure, which adopts a three-stator nested type stator and rotor structure, wherein the rotor adopts a three-bearing supporting structure comprising a front end bearing, a middle bearing and a rear bearing, so that the direct driving wind generator operates reliably, an outer stator is directly installed on an outer shell of a machine seat, a middle stator is installed on a barrel support, an inner stator is installed on a dead shaft through a spoke, a hub drives the cage type rotor of the direct driving wind generator with a three-stator structure to rotate, and the outer stator, the inner stator and the inner stator are utilized to output electricity energy. The manufacture and assembling process is simple, the installation is simple and convenient, the maintenance is convenient, space use ratio is high, power density is high, work requirements of the wind driven motor are satisfied, the rigidity of the rotor is improved, and the operation of the motor is reliable.

Description

Nested three-stator structure squirrel-cage direct-drive wind turbine

technical field

The utility model relates to a direct-drive wind power generator applied to a direct-drive wind power generator, in particular to a nested three-stator structure squirrel-cage direct-drive wind power generator.

Background technique

With the country's promotion of clean energy, wind power has been vigorously developed in recent years. In order to reduce the failure rate of wind turbines, direct-drive generators without gearboxes have won a better market. Due to the low speed and large radial size of the direct-drive generator, the existing direct-drive wind turbine mostly adopts a hub-and-spoke structure, and the effective utilization of space is low.

Utility model content

The purpose of the utility model is to provide a nested three-stator structure squirrel-cage direct-drive wind power generator with compact structure, high space utilization rate and high power density, so as to meet the requirements of high-efficiency utilization of wind energy by wind power generators.

The technical scheme of the utility model is as follows:

A nested three-stator structure squirrel-cage direct-drive wind power generator, including a static shaft, a front end bearing, a rotating shaft, a nested cup-shaped rotor support cylinder, inner stator mounting spokes, an inner stator, an inner rotor, a front end cover, a middle Stator, outer rotor, outer stator, intermediate rotor, frame shell, rear end cover, rear end bearing transition support, intermediate stator support seat, rear end bearing, intermediate bearing transition support, intermediate bearing and frame;

The static shaft is installed on the base of the wind turbine through bolt connection; the base shell is fixed on the static shaft through the rear end cover, and the outer stator is installed on the inner wall of the base shell; the intermediate stator support seat is fixed on the static shaft, and the intermediate stator is installed on the The outer wall of the middle stator support seat; the inner stator is installed with the spokes fixed on the static shaft, and the inner stator is installed on the outer wall of the inner stator with the spokes;

The front end of the nested cup-shaped rotor support cylinder is connected to the rotating shaft and supported on the static shaft through the front-end bearing. The rotating shaft is connected to the hub of the wind turbine through bolts, and the inner support cylinder of the nested cup-shaped rotor support cylinder is connected to the intermediate bearing transition support And supported on the static shaft through the intermediate bearing, the outer support tube of the nested cup-shaped rotor support tube is connected to the transition support of the rear end bearing and supported on the static shaft through the rear end bearing; the outer rotor is installed on the nested cup-shaped rotor support The outer wall of the outer support cylinder of the cylinder, the intermediate rotor is installed on the inner wall of the outer support cylinder of the nested cup-shaped rotor support cylinder, and the inner rotor is installed on the inner wall of the inner support cylinder of the nested cup-shaped rotor support cylinder;

The outer stator cooperates with the outer rotor, the middle stator cooperates with the middle rotor, and the inner stator cooperates with the inner rotor.

The beneficial technical effect of the utility model is:

(1) The utility model adopts nested three stators with compact structure, simple manufacturing and assembly process, easy installation, convenient maintenance, high space utilization rate, high power density, and meets the working requirements of wind power generators.

(2) The utility model adopts three bearings of the front end bearing, the middle bearing and the rear end bearing to support the rotor, which improves the rigidity of the rotor and makes the motor run reliably.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described further.

As shown in Figure 1, the utility model includes a static shaft 1, a front end bearing 2, a rotating shaft 3, a nested cup-shaped rotor support cylinder 4, an inner stator mounting spoke 5, an inner stator 6, an inner rotor 7, a front end cover 8, a middle Stator 9, outer rotor 10, outer stator 11, intermediate rotor 12, frame shell 13, rear end cover 14, rear end bearing transition support 15, intermediate stator support seat 16, rear end bearing 17, intermediate bearing transition support 18, middle Bearing 19 and support 20.

As shown in FIG. 1 , the static shaft 1 is installed on the frame 20 of the wind power generating set through bolt connection. The machine base shell 13 is fixed on the static shaft 1 through the rear end cover 14 , and the outer stator 11 is installed on the inner wall of the machine base shell 13 . The middle stator support seat 16 is fixed on the static shaft 1, and the middle stator 9 is installed on the outer wall of the middle stator support seat 16. The inner stator installs the spoke 5 and is fixed on the static shaft 1, and the inner stator 6 is installed on the inner stator and installs the outer wall of the spoke 5.

As shown in Figure 1, the front end of the nested cup-shaped rotor support cylinder 4 is connected to the rotating shaft 3 and supported on the static shaft 1 through the front end bearing 2, and the rotating shaft 3 is connected to the hub 21 of the wind turbine through bolts. The inner support cylinder of the rotor support cylinder 4 is connected to the intermediate bearing transition support 18 and supported on the static shaft 1 through the intermediate bearing 19, and the outer support cylinder of the nested cup-shaped rotor support cylinder 4 is connected to the rear end bearing transition support 15 and passed the rear end bearing transition support 15. The bearing 17 is supported on the static shaft 1 . The outer rotor 10 is mounted on the outer wall of the nested cup-shaped rotor support cylinder 4, the intermediate rotor 12 is mounted on the inner wall of the nested cup-shaped rotor support cylinder 4, and the inner rotor 7 is mounted on the nested cup-shaped rotor support cylinder. The inner wall of the inner support cylinder of the rotor support cylinder 4 .

As shown in FIG. 1 , the outer stator 11 cooperates with the outer rotor 10 , the intermediate stator 9 cooperates with the intermediate rotor 12 , and the inner stator 6 cooperates with the inner rotor 7 . The hub 21 drives three rotors: the outer rotor 10 , the intermediate rotor 12 , and the inner rotor 7 , thereby utilizing three independent stators: the outer stator 11 , the intermediate stator 9 , and the inner stator 6 to output electric energy.

The above are only preferred implementations of the utility model, and the utility model is not limited to the above examples. It can be understood that other improvements and changes directly derived or conceived by those skilled in the art without departing from the spirit and concept of the present utility model shall be considered to be included in the protection scope of the present utility model.

Claims (1)

1. A nested three-stator structure squirrel-cage direct-drive wind turbine, characterized in that it includes a static shaft (1), a front end bearing (2), a rotating shaft (3), and a nested cup-shaped rotor support cylinder ( 4), inner stator installation spokes (5), inner stator (6), inner rotor (7), front end cover (8), intermediate stator (9), outer rotor (10), outer stator (11), intermediate rotor ( 12), machine base shell (13), rear end cover (14), rear end bearing transition support (15), middle stator support seat (16), rear end bearing (17), middle bearing transition support (18), middle Bearing (19) and frame (20); The static shaft (1) is installed on the wind turbine frame (20) through bolt connection; the frame shell (13) is fixed on the static shaft (1) through the rear end cover (14), and the outer stator (11) is installed The inner wall of the seat shell (13); the middle stator support seat (16) is fixed on the static shaft (1), and the middle stator (9) is installed on the outer wall of the middle stator support seat (16); the inner stator is installed with spokes (5) fixed on the static shaft ( 1) On, the inner stator (6) is installed on the outer wall of the inner stator and the spokes (5); The front end of the nested cup-shaped rotor support cylinder (4) is connected to the rotating shaft (3) and supported on the static shaft (1) through the front end bearing (2), and the rotating shaft (3) is connected to the hub (21) of the wind turbine through bolts , the inner support cylinder of the nested cup-shaped rotor support cylinder (4) is connected to the intermediate bearing transition support (18) and supported on the static shaft (1) through the intermediate bearing (19), and the nested cup-shaped rotor support cylinder (4) )’s outer support cylinder is connected to the rear end bearing transition support (15) and is supported on the static shaft (1) through the rear end bearing (17); the outer rotor (10) is installed on the nested cup-shaped rotor support cylinder (4) The outer wall of the outer support cylinder, the intermediate rotor (12) is installed on the inner wall of the outer support cylinder of the nested cup-shaped rotor support cylinder (4), and the inner rotor (7) is installed on the inner support of the nested cup-shaped rotor support cylinder (4) cylinder wall; The outer stator (11) cooperates with the outer rotor (10), the intermediate stator (9) cooperates with the intermediate rotor (12), and the inner stator (6) cooperates with the inner rotor (7).

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