CN214660610U

CN214660610U - Wind wheel rotating speed control system of wind driven generator

Info

Publication number: CN214660610U
Application number: CN202120544117.1U
Authority: CN
Inventors: 尚尔发; 孙建东; 王悦; 李皓昱; 孙宏印
Original assignee: Inner Mongolia Huomei Hongjun Aluminum Power Co ltd Power Branch
Current assignee: Inner Mongolia Huomei Hongjun Aluminum Power Co ltd Power Branch
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-11-09
Anticipated expiration: 2031-03-16

Abstract

A wind wheel rotating speed control system of a wind driven generator belongs to the technical field of wind power systems and aims to solve the problem of energy waste caused by shutdown of the wind driven generator when the wind speed is higher than 25m/s in the prior art. The servo motor comprises a servo rod, a servo gear, a servo platform, a reverse rod, a reverse gear, a reverse platform, a conical transmission gear and a support frame; the follow-up platform is arranged at the top end of the follow-up rod, a wind wheel of the wind driven generator is arranged on the follow-up platform, a follow-up gear is sleeved on one side of the bottom end of the follow-up rod, and the follow-up gear, the follow-up rod, the follow-up platform and the wind wheel rotate coaxially; the reversing platform is arranged at the top end of the reversing rod, the reversing gear is arranged at the bottom end of the reversing rod, the reversing gear and the reversing platform are sleeved in the middle of the follower rod, and the reversing gear and the follower gear are arranged oppositely; the conical transmission gear is arranged on the side of the follower rod through a support frame and is meshed with the reverse gear and the follower gear; the contact part of the inside of the reversing rod and the follower rod is provided with a rolling bearing. The utility model is used for aerogenerator.

Description

Wind wheel rotating speed control system of wind driven generator

Technical Field

The utility model relates to a wind wheel rotational speed control system of aerogenerator belongs to wind power system technical field.

Background

The wind driven generator has a simple working principle, the wind wheel rotates under the action of wind force to convert the kinetic energy of the wind into mechanical energy of a wind wheel shaft, and the generator rotates under the drive of the wind wheel shaft to generate electricity. Wind power generation is forming a hot tide in the world because it has no fuel problems and does not produce radiation or air pollution.

The working process of the wind power generator is generally as follows: automatically starting, connecting to the grid or cutting out from the power grid according to the wind speed signal; automatically aligning wind according to the wind direction signal; automatically performing capacitance switching compensation according to the power factor and the output electric power; the safe shutdown of the unit is ensured when the network is disconnected; and monitoring, analyzing and recording the state of the power grid, the wind condition and the unit during operation.

The wind power generator drives the windmill blades to rotate by utilizing wind power, and the rotating speed is increased through the speed increaser, so that the generator is promoted to generate electricity. According to current wind generator technology, a breeze speed (of the order of a breeze) of about three meters per second can be used to generate electricity.

When the wind speed is too low, the wind driven generator cannot be started, and when the wind speed is too high, the blades of the wind driven generator can be severely stalled to cause damage to the blades.

Therefore, the wind power generator in the prior art collects the wind speed once per second, calculates the average value once in 10 minutes, and starts when the wind speed is more than 3 m/s. The wind speed is above 25m/s for 10min, above 33m/s for 2s and above 50m/s for 1 s. Therefore, the wind power generator can normally work only when the wind speed is 3-25 m/s, and the wind power generator is in a stop state at high wind speed, which causes energy waste.

SUMMERY OF THE UTILITY MODEL

To wind power generation machine shut down when wind speed is higher than 25m/s among the prior art and lead to the extravagant problem of the energy, the utility model provides a wind wheel rotational speed control system device of wind power generation machine.

The utility model discloses a wind wheel rotating speed control system of a wind driven generator, which comprises a follower rod, a follower gear, a follower platform, a reverse rod, a reverse gear, a reverse platform, a conical transmission gear and a support frame;

the follow-up platform is arranged at the top end of the follow-up rod, a wind wheel of the wind driven generator is arranged on the follow-up platform, a follow-up gear is sleeved on one side of the bottom end of the follow-up rod, and the follow-up gear, the follow-up rod, the follow-up platform and the wind wheel rotate coaxially;

the reversing platform is arranged at the top end of the reversing rod, the reversing gear is arranged at the bottom end of the reversing rod, the reversing gear and the reversing platform are sleeved in the middle of the follower rod, and the reversing gear and the follower gear are arranged oppositely;

the conical transmission gear is arranged on the side of the follower rod through the support frame and is meshed with the reversing gear and the follower gear;

the contact part of the inside of the reversing rod and the follower rod is provided with a rolling bearing.

Preferably, the support frame comprises a U-shaped support and two circular rings arranged at two ends of the U-shaped support; the two rings are respectively sleeved on the outer sides of the reversing rod and the follower rod, and the inner diameter of each ring is larger than the outer diameter of each reversing rod and the outer diameter of each follower rod.

Preferably, the bottom of the U-shaped support of the support frame is fixedly mounted with the top end of the support of the wind driven generator.

Preferably, the rolling bearing comprises an outer ring, an inner ring and rolling bodies; the inner ring is arranged on the outer surface of the follower rod, the outer ring is arranged on the inner side of the reversing rod, and a rolling body is arranged between the outer ring and the inner ring.

Preferably, the rolling bearing further comprises a cage disposed between the rolling bodies.

The utility model has the advantages that: the utility model provides a pair of aerogenerator's wind wheel rotational speed control system, through the follower gear and the reversal gear that set up in opposite directions, and simultaneously with the conical drive gear of the two meshing, realize the follower rod that the suit set up and the reverse rotation of reversal rod, be provided with antifriction bearing between the two, make the follower rod rotational speed reduce, the wind speed scope of shutting down has been promoted, make aerogenerator's wind speed working range increase to 3 ms ~ 43 ms, improve the utilization ratio of wind energy.

Drawings

Fig. 1 is a schematic structural diagram of a wind wheel speed control system of a wind turbine generator according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.

In a first specific embodiment, as shown in fig. 1, the utility model provides a wind wheel rotation speed control system of a wind driven generator, which comprises a follower rod 1, a follower gear 2, a follower platform 3, a reverse rod 4, a reverse gear 5, a reverse platform 6, a conical transmission gear 7 and a support frame 8;

the follow-up platform 3 is arranged at the top end of the follow-up rod 1, a wind wheel of the wind driven generator is arranged on the follow-up platform 3, the follow-up gear 2 is sleeved on one side of the bottom end of the follow-up rod 1, and the follow-up gear 2, the follow-up rod 1, the follow-up platform 3 and the wind wheel rotate coaxially;

the reversing platform 6 is arranged at the top end of the reversing rod 4, the reversing gear 5 is arranged at the bottom end of the reversing rod 4, the reversing gear 5 and the reversing platform 6 are sleeved in the middle of the follower rod 1, and the reversing gear 5 is arranged opposite to the follower gear 2;

the conical transmission gear 7 is arranged on the side of the follower rod 1 through the support frame 8, and the conical transmission gear 7 is meshed with the reverse gear 5 and the follower gear 2;

the contact part of the reversing lever 4 and the follower lever 1 is provided with a rolling bearing.

Further, the support frame 8 comprises a U-shaped support and two circular rings arranged at two ends of the U-shaped support; the two circular rings are respectively sleeved on the outer sides of the reversing rod 4 and the follower rod 1, and the inner diameter of each circular ring is larger than the outer diameter of the reversing rod 4 and the outer diameter of the follower rod 1.

Still further, the bottom of the U-shaped support of the support frame 8 is fixedly mounted with the top end of the support of the wind driven generator.

Still further, the rolling bearing comprises an outer ring, an inner ring and a rolling body; the inner ring is arranged on the outer surface of the follower rod 1, the outer ring is arranged on the inner side of the reversing rod 4, and a rolling body is arranged between the outer ring and the inner ring.

Still further, the rolling bearing further comprises a retainer, and the retainer is arranged between the rolling bodies.

The utility model discloses in, when aerogenerator's wind wheel began to operate, follow-up platform 3 and follower rod 1 and the coaxial rotation of wind wheel, follow-up gear 2 also rotated thereupon. The conical transmission gear 7 meshed with the follow-up gear 2 starts to rotate, then the reversing gear 5 meshed with the conical transmission gear 7 rotates, the rotating direction of the reversing gear 5 is opposite to that of the follow-up gear 2, the reversing gear 5 drives the reversing rod 4 and the reversing platform 6 to rotate, and the reversing rod 4 and the reversing platform 6 are identical to that of the reversing gear 5, so that the sleeved follow-up rod 1 and the sleeved reversing rod 4 rotate in two directions, and the rotating speed of the follow-up rod 1 is reduced through the reversing rod 4 and the reversing gear 5 which rotate reversely, so that the shutdown wind speed is improved, the wind speed working range of the wind driven generator is enlarged, and the utilization rate of wind energy is improved.

The rolling bearing provided in the contact portion of the inside of the reversing lever 4 and the follower lever 1 converts sliding friction between the reversing lever 4 and the follower lever 1 into rolling friction, thereby reducing friction loss.

The retainer is arranged between the rolling bodies of the rolling bearing, so that the rolling bodies can be uniformly distributed, friction between the rolling bodies can be avoided, and the service life of the rolling bearing is prolonged.

Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.

Claims

1. The wind wheel rotating speed control system of the wind driven generator is characterized by comprising a follow rod (1), a follow gear (2), a follow platform (3), a reverse rod (4), a reverse gear (5), a reverse platform (6), a conical transmission gear (7) and a support frame (8);

the follow-up platform (3) is arranged at the top end of the follow-up rod (1), a wind wheel of the wind driven generator is arranged on the follow-up platform (3), the follow-up gear (2) is sleeved on one side of the bottom end of the follow-up rod (1), and the follow-up gear (2), the follow-up rod (1) and the follow-up platform (3) rotate coaxially with the wind wheel;

the reversing platform (6) is arranged at the top end of the reversing rod (4), the reversing gear (5) is arranged at the bottom end of the reversing rod (4), the reversing gear (5) and the reversing platform (6) are sleeved in the middle of the follower rod (1), and the reversing gear (5) and the follower gear (2) are arranged oppositely;

the conical transmission gear (7) is arranged on the side of the follower rod (1) through a support frame (8), and the conical transmission gear (7) is meshed with the reverse gear (5) and the follower gear (2);

the contact part of the inside of the reversing rod (4) and the follower rod (1) is provided with a rolling bearing.

2. The wind turbine speed control system of a wind turbine according to claim 1, wherein the support frame (8) comprises a U-shaped bracket and two rings arranged at both ends of the U-shaped bracket; the two circular rings are respectively sleeved on the outer sides of the reversing rod (4) and the follower rod (1), and the inner diameter of each circular ring is larger than the outer diameter of the reversing rod (4) and the outer diameter of the follower rod (1).

3. The wind turbine speed control system of the wind turbine according to claim 2, wherein the bottom of the U-shaped support of the support frame (8) is fixedly mounted to the top of the support of the wind turbine.

4. The wind turbine rotor speed control system of a wind turbine according to any of claims 1 to 3, wherein the rolling bearing comprises an outer ring, an inner ring and rolling bodies; the inner ring is arranged on the outer surface of the follower rod (1), the outer ring is arranged on the inner side of the reversing rod (4), and a rolling body is arranged between the outer ring and the inner ring.

5. The wind turbine rotor speed control system of wind turbine according to claim 4, wherein the rolling bearing further comprises a cage disposed between the rolling bodies.