CN217362765U

CN217362765U - Natural cooling electromagnetic braking wind power generation variable pitch motor

Info

Publication number: CN217362765U
Application number: CN202220728410.8U
Authority: CN
Inventors: 张明思; 李想; 王海江; 董强亮; 潘存鑫; 谢伟龙
Original assignee: Yinchuan Weima Motor Co ltd
Current assignee: Yinchuan Weima Motor Co ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-09-02
Anticipated expiration: 2032-03-31

Abstract

A natural cooling electromagnetic braking wind power generation variable pitch motor relates to the technical field of wind power generation variable pitch motors and is used for solving the technical problems that an existing variable pitch motor is large in energy consumption and high in cost. In the natural cooling electromagnetic braking wind power generation variable pitch motor, the electromagnetic brake is assembled on the main shaft with the second A-type flat key, the fan is assembled on the main shaft behind the electromagnetic brake, and the fan is clamped tightly through a retaining ring for a shaft; the fan cover is fixed on the rear end cover through a third bolt, and the encoder is assembled at the rearmost end of the main shaft and is fixed on the fan cover through the encoder clamping plate; meanwhile, the encoder is fixed on the fan cover through an encoder sealing gasket and the encoder cover by adopting a screw to lock.

Description

Natural cooling electromagnetic braking wind power generation variable pitch motor

Technical Field

The utility model relates to a wind power generation becomes oar motor technical field, especially relates to a natural cooling electromagnetic braking wind power generation becomes oar motor.

Background

At present, a wind power generation variable-pitch brake motor is mainly used for driving a variable-pitch reduction gearbox, a variable-pitch mechanism is near (above) rated wind speed, the pitch angle is adjusted at any time according to the change of the wind speed, and absorbed mechanical energy is controlled, so that on one hand, the maximum energy is ensured to be obtained, and meanwhile, the impact of wind power on a wind turbine is reduced.

The variable pitch control system is matched with a variable speed constant frequency technology, and finally the generating efficiency and the electric energy quality of the whole wind power generation system are improved. However, most of the pitch motors in the current market are forced air cooling brake motors which are provided with small fans, and the power supply of the small fans is from a wind driven generator, so that the energy consumption of a pitch system is increased, and the production cost of the pitch motors is increased.

That is, the following two defects exist in the prior art: (1) most of the existing pitch motors in the market of wind power pitch motors are forced air cooling brake motors; (2) the output efficiency of the existing wind driven generator is affected due to high energy consumption of the existing wind driven generator, and particularly, the proportion of the energy consumption of a yaw system and a pitch system in the energy consumption of the whole wind driven generator is large.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a natural cooling electromagnetic braking wind power generation becomes oar motor for solve the current great, the higher technical problem of cost of the oar motor energy consumption that becomes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a naturally cooled electromagnetic braking wind power generation variable pitch motor comprises: the device comprises a main shaft, a rear end cover, an electromagnetic brake, a second A-type flat key, an encoder clamping plate, an encoder cover, a fan cover and a fan;

the electromagnetic brake is assembled on the main shaft with the second A-type flat key, the fan is assembled on the main shaft behind the electromagnetic brake, and the fan is clamped through a shaft retainer ring; the fan cover is fixed on the rear end cover through a third bolt, and the encoder is assembled at the rearmost end of the main shaft and is fixed on the fan cover through the encoder clamping plate; meanwhile, the encoder is fixed on the fan cover through an encoder sealing gasket and the encoder cover by adopting a screw to lock.

Wherein the encoder gasket comprises: the encoder comprises an annular gasket, a second spring washer and a flat gasket, wherein the annular gasket is fixed at the rear end of the encoder through a hexagon socket head cap screw with the flat gasket and the second spring washer and locks the encoder.

Specifically, the encoder cardboard is including two, and every the encoder cardboard is the semi-annular structure, the encoder cardboard is fixed in through hexagonal holding screw the fan casing.

Further, the electromagnetic brake is assembled on the main shaft with the second A-type flat key, and the electromagnetic brake is fixed on the main shaft through a shaft retainer ring so as to prevent the axial movement of the electromagnetic brake.

In practical application, the rear end cover is assembled in the engine base, and the rear end cover is locked with the engine base through three second bolts with first spring washers.

The winding stator core is pressed in the base; the two ends of the rotor are provided with check rings for holes, and deep groove ball bearings are pressed and installed through a pressing machine; and the rotor of the deep groove ball bearing is assembled in the bearing chamber of the rear end cover after being pressed, and the oil seal position of the rear end cover is assembled with a framework oil seal.

Specifically, a wave spring is assembled in a bearing chamber of the flange end cover, and the flange end cover is locked on the base through a first bolt.

Furthermore, the upper end and the lower end of the base are respectively provided with a hanging ring; the terminal box is installed to the frame, just aviation plug is installed to the terminal box.

Still further, the fan cover is equipped with a fan cover dust cap.

Further, the shaft-extending end of the main shaft is equipped with a first A-type flat key.

Preferably, the machine base is provided with a circular water outlet valve.

Compared with the prior art, natural cooling electromagnetic braking wind power generation becomes oar motor has following advantage:

in the natural cooling electromagnetic braking wind power generation variable pitch motor provided by the utility model, the electromagnetic brake is assembled on the main shaft with the second A-shaped flat key, and the fan is assembled on the main shaft behind the electromagnetic brake and is clamped by the retaining ring for the shaft; the fan cover is fixed on the rear end cover through a third bolt, and the encoder is assembled at the rearmost end of the main shaft and is fixed on the fan cover through an encoder clamping plate; meanwhile, the encoder is sealed through the encoder and is sealed the pad and the encoder cover and adopt screw locking to be fixed in the fan casing, consequently the utility model provides a natural cooling electromagnetic braking wind power generation becomes oar motor, adopts the fan among the fan replacement prior art, and at fan cover outer installation encoder, thereby the mounting structure of encoder has been optimized, the forced cooling that will become the oar motor simultaneously becomes natural cooling and reaches probably, and then has realized the energy saving and consumption reduction purpose that becomes the oar motor, production efficiency has effectively been improved, the manufacturing cost is reduced and the maintenance degree of difficulty has been reduced, and can guarantee that aerogenerator moves safely effectively more.

Drawings

Fig. 1 is a schematic cross-sectional structural view of a naturally-cooled electromagnetic braking wind power generation pitch motor provided in an embodiment of the present invention;

fig. 2 is the embodiment of the utility model provides a natural cooling electromagnetic braking wind power generation becomes oar motor's structural schematic diagram.

Reference numerals:

1-a rotor; 2-a main shaft; 3-a first flat bond type a; 4-framework oil seal; 5-wave spring; 6-deep groove ball bearing; 7-a first bolt; 8-stator core with winding; 9-a second bolt; 10-a first spring washer;

11-rear end cap; 12-a third bolt; 13-an electromagnetic brake; 14-a retainer ring for the bore; 15-a dust cover of the fan cover; 16-a second flat bond type a; 17-an encoder card; 18-socket set screw; 19-an encoder; 20-an annular gasket;

21-a second spring washer; 22-a flat gasket; 23-encoder shield; 24-a screw; 25-a fan housing; 26-a fan; 27-a hoisting ring; 28-a stand; 29-round outlet valve; 30-flanged end caps; 31-aviation plug.

Detailed Description

For convenience of understanding, the natural cooling electromagnetic braking wind power generation variable pitch motor provided by the embodiment of the invention is described in detail below with reference to the attached drawings.

An embodiment of the utility model provides a natural cooling electromagnetic braking wind power generation becomes oar motor, as shown in fig. 1 and fig. 2, include: the device comprises a main shaft 2, a rear end cover 11, an electromagnetic brake 13, a second A-type flat key 16, an encoder clamping plate 17, an encoder 19, an encoder cover 23, a fan cover 25 and a fan 26;

the electromagnetic brake 13 is assembled on the main shaft 2 with the second A-type flat key 16, the fan 26 is assembled on the main shaft 2 behind the electromagnetic brake 13, and the fan 26 is clamped by a shaft retainer ring; the fan cover 25 is fixed on the rear end cover 11 through a third bolt 12, and the encoder 19 is assembled at the rearmost end of the main shaft 2 and fixed on the fan cover 25 through the encoder clamping plate 17; meanwhile, the encoder 19 is fastened to the fan cover 25 by means of the encoder packing and the encoder cover 23 and by means of screws 24.

Compared with the prior art, the embodiment of the utility model provides a natural cooling electromagnetic braking wind power generation becomes oar motor has following advantage:

in the natural cooling electromagnetic braking wind power generation variable pitch motor provided by the embodiment of the utility model, the electromagnetic brake 13 is assembled on the main shaft 2 with the second A-shaped flat key 16, and the fan 26 is assembled on the main shaft 2 behind the electromagnetic brake 13, and the fan 26 is clamped by the retaining ring for shaft; the fan cover 25 is fixed on the rear end cover 11 through a third bolt 12, and the encoder 19 is assembled at the rearmost end of the main shaft 2 and fixed on the fan cover 25 through the encoder clamping plate 17; meanwhile, encoder 19 is sealed through the encoder and seals up with encoder cover 23 and adopt 24 locking of screw to be fixed in fan housing 25, consequently the embodiment of the utility model provides a natural cooling electromagnetic braking wind power generation becomes oar motor, adopt fan 26 to replace the fan among the prior art, and install encoder 19 outside fan housing 25, thereby the mounting structure of encoder has been optimized, the forced cooling that will become the oar motor simultaneously becomes natural cooling and reaches probably, and then realized the energy saving and consumption reduction purpose that becomes the oar motor, production efficiency has effectively been improved, production cost and maintenance difficulty have been reduced, and can guarantee that aerogenerator moves safely effectively more.

As shown in fig. 1, the encoder gasket may include: an annular washer 20, a second spring washer 21, and a flat washer 22; in actual assembly, the annular washer 20 is fixed to the rear end of the encoder 19 by a socket head cap screw having a flat washer 22 and a second spring washer 21 and locks the encoder 19.

Specifically, as shown in fig. 1, the number of the encoder boards 17 may include two, and each encoder board 17 is a semi-annular structure; in actual assembly, the encoder card 17 is fixed to the fan housing 25 by the socket set screws 18.

Further, as shown in fig. 1, the electromagnetic brake 13 is assembled to the main shaft 2 having the second a-type flat key 16, and the electromagnetic brake 13 is fixed to the main shaft 2 by a shaft retainer ring, thereby effectively preventing the axial play of the electromagnetic brake 13.

In practice, as shown in fig. 1, the rear cover 11 is assembled in the housing 28, and the rear cover 11 is locked with the housing 28 by three second bolts 9 having the first spring washers 10.

As shown in fig. 1, the winding stator core 8 is press-fitted inside the machine base 28; the two ends of the rotor 1 are provided with hole check rings 14, and the deep groove ball bearings 6 are pressed and installed through a press; the rotor 1 with the deep groove ball bearing 6 assembled in the bearing chamber of the rear end cover 11 is assembled, and the framework oil seal 4 is assembled at the oil seal position of the rear end cover 11.

Specifically, as shown in fig. 1, the above-mentioned flange end cover 30 is fitted with the wave spring 5 in the bearing chamber, and the flange end cover 30 is locked to the housing 28 by the first bolt 7.

Further, as shown in fig. 1, the upper and lower ends of the base 28 are respectively provided with a hanging ring 27; the housing 28 is fitted with a junction box (not shown) and the box is fitted with an aircraft plug 31, as shown in figure 2.

Still further, as shown in fig. 1, the fan cover 25 is equipped with a fan cover dust cap 15.

Further, as shown in fig. 1, the shaft-extending end of the main shaft 2 is fitted with a first a-type flat key 3.

Preferably, as shown in fig. 1, the housing 28 is provided with a circular outlet valve 29.

To sum up, the embodiment of the utility model provides a natural cooling electromagnetic braking wind power generation becomes oar motor has solved motor encoder's installation problem to through structural design cooperation fan casing installation encoder, thereby effectively reduced the cost that becomes the oar motor, reduced the energy consumption that becomes the oar motor.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a natural cooling electromagnetic braking wind power generation becomes oar motor which characterized in that includes: the device comprises a main shaft, a rear end cover, an electromagnetic brake, a second A-type flat key, an encoder clamping plate, an encoder cover, a fan cover and a fan;

the electromagnetic brake is assembled on the main shaft with the second A-type flat key, the fan is assembled on the main shaft behind the electromagnetic brake, and the fan is clamped through a shaft retainer ring; the fan cover is fixed on the rear end cover, the encoder is assembled at the rearmost end of the main shaft and is fixed on the fan cover through the encoder clamping plate; meanwhile, the encoder is locked and fixed on the fan cover through an encoder sealing gasket and the encoder cover.

2. The naturally cooled electromagnetic braking wind power generation pitch motor of claim 1, wherein the encoder gasket comprises: the encoder comprises an annular gasket, a second spring washer and a flat gasket, wherein the annular gasket is fixed at the rear end of the encoder through a hexagon socket head cap screw with the flat gasket and the second spring washer and locks the encoder.

3. The naturally-cooled electromagnetic braking wind power generation pitch motor according to claim 1 or 2, wherein the number of the encoder clamping plates is two, each of the encoder clamping plates is of a semi-annular structure, and the encoder clamping plates are fixed to the fan cover through hexagon socket head cap set screws.

4. The naturally cooled electromagnetic braking wind turbine pitch motor of claim 3, wherein said electromagnetic brake is assembled to said main shaft with said second A-type flat key and secured to said main shaft by a shaft retainer ring.

5. The naturally cooled electromagnetic braking wind power generation pitch motor of claim 1, wherein the rear end cap is assembled in a base and locked to the base by a second bolt having a first spring washer.

6. The naturally cooled electromagnetic braking wind power generation pitch motor according to claim 5, wherein a winding stator core is press-fitted inside the base; the two ends of the rotor are provided with check rings for holes, and deep groove ball bearings are pressed and installed; and the rotor of the deep groove ball bearing is assembled in the bearing chamber of the rear end cover after being pressed, and the oil seal position of the rear end cover is assembled with a framework oil seal.

7. The naturally cooled electromagnetic braking wind power generation pitch motor according to claim 5 or 6, wherein a wave spring is assembled in a bearing chamber of a flange end cover, and the flange end cover is locked to the base by a first bolt.

8. The naturally-cooled electromagnetic braking wind power generation pitch motor according to claim 5, wherein the upper end and the lower end of the base are respectively provided with a hanging ring; the terminal box is installed to the frame, just aviation plug is installed to the terminal box.

9. The naturally cooled electromagnetic braking wind power generation pitch motor of claim 1, wherein said fan housing is fitted with a fan housing dust cover.

10. The naturally cooled electromagnetic braking wind power generation pitch motor according to claim 1, wherein the shaft extension end of the main shaft is fitted with a first a-type flat key.