CN219570250U

CN219570250U - Impeller angle adjustable driving device based on wind turbine generator brake disc

Info

Publication number: CN219570250U
Application number: CN202320658907.1U
Authority: CN
Inventors: 王安善; 漆召兵; 李文星; 吴国杰; 王会堂
Original assignee: Three Gorges New Energy Offshore Wind Power Operation And Maintenance Jiangsu Co ltd
Current assignee: Three Gorges New Energy Offshore Wind Power Operation And Maintenance Jiangsu Co ltd
Priority date: 2023-03-29
Filing date: 2023-03-29
Publication date: 2023-08-22
Anticipated expiration: 2033-03-29

Abstract

The utility model relates to the technical field of impeller driving, in particular to an impeller angle-adjustable driving device based on a brake disc of a wind turbine, which comprises a base, a power piece and a transmission assembly, wherein an impeller is in transmission fit with the brake disc through a gear box; the power piece is fixed on the base and is suitable for providing power for the rotation of the impeller; the transmission assembly is arranged between the power piece and the brake disc in a transmission way and is suitable for transmitting power output by the power piece to the brake disc, and the power piece drives the brake disc to rotate through the transmission assembly so as to drive the impeller to rotate to a preset position. According to the utility model, the brake disc is driven by the power piece to rotate so as to drive the impeller to rotate, so that the impeller is rotated to a specified position, and then the fan impeller is locked, so that the working efficiency is greatly improved, and the problems that the rotation speed and the rotation position of the impeller are unstable and the impeller is low in controllability due to wind power driving and difficult to rotate due to manpower are effectively avoided by replacing the impeller with automatic driving due to wind power driving.

Description

Impeller angle adjustable driving device based on wind turbine generator brake disc

Technical Field

The utility model relates to the technical field of impeller driving, in particular to an impeller angle adjustable driving device based on a wind turbine generator brake disc.

Background

With the development of technology, wind energy has played an important role in the world. The wind turbine generator is an important device for converting wind energy into mechanical energy, and comprises a wind wheel, and when the wind turbine generator works in a pitch system of the wind turbine generator, the wind wheel needs to be locked at first.

The existing wind turbine further comprises a hub lock pin, and the hub is an impeller shell and belongs to a rotating part. Because the fan becomes oar system and is located the wheel hub, when becoming oar system and reporting out the trouble or patrol and examine the fan, get into the wheel hub and except stopping the brake disc of gear box high-speed shaft through the brake knob, still should insert the impeller lockpin in the impeller, avoid the impeller to rotate in order to ensure personnel's safety. When the wind speed is low, the impeller is too slow to rotate, and manpower is difficult to rotate, so that after the impeller is required to rotate to a proper position, the site measure can be finished, and time and personnel energy are wasted.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is to overcome the defects of unstable rotation speed and rotation position and low controllability of the existing impeller driven by wind power, thereby providing the impeller angle adjustable driving device based on the wind turbine generator brake disc.

In order to solve the problems, the utility model provides an impeller angle-adjustable driving device based on a brake disc of a wind turbine generator, wherein the impeller is in transmission fit with the brake disc through a gear box, and the driving device comprises: the brake disc is rotatably arranged on the base; the power piece is fixed on the base and is suitable for providing power for rotation of the impeller, the transmission assembly is arranged between the power piece and the brake disc in a transmission mode and is suitable for transmitting power output by the power piece to the brake disc, and the power piece drives the brake disc to rotate through the transmission assembly so as to drive the impeller to rotate to a preset position.

Optionally, the gear box includes box, high-speed axle, low-speed axle, high-speed axle and low-speed axle parallel arrangement are in the box each other, are equipped with intermeshing's gear on high-speed axle and the low-speed axle, and the brake disc sets up on high-speed axle, and the impeller sets up on the low-speed axle.

Optionally, the transmission assembly includes: the driving roller is rotationally connected to the base and is fixedly connected to an output shaft of the power piece; the driven roller is rotatably connected to the base, the driven roller and the driving roller are positioned on one side of the base, and the peripheral wall of the driven roller is abutted to the peripheral wall of the brake disc so as to drive the brake disc to move through contact friction; the driving roller drives the driven roller to rotate through the transmission gear set.

Optionally, the transmission gear set includes: the driving gear is fixedly arranged on the driving roller; the driven gear is fixedly arranged on the driven roller, and the periphery of the driven gear is meshed with the periphery of the driving gear to realize the meshed and matched transmission of the driving gear and the driven gear.

Optionally, the driven roller is provided with a plurality of driven gears, and the driven gears are also provided with a plurality of driven rollers and correspond to the driven rollers one by one.

Optionally, the driving roller and the driving gear are integrally formed.

Optionally, the driven roller and the driven gear are integrally formed.

Optionally, the transmission assembly further comprises a transmission belt, a set distance exists between the driven roller and the brake disc, the transmission belt is sleeved on the peripheral walls of the driven roller and the brake disc, and the transmission belt is suitable for transmitting power through contact friction between the transmission belt and the driven roller and the brake disc.

Optionally, the power piece is a motor, and an output shaft of the motor is fixedly connected with the driving roller.

The utility model has the following advantages:

1. according to the impeller angle adjustable driving device based on the wind turbine generator brake disc, when the impeller is required to rotate, the power piece transmits power to the brake disc through the transmission component, the brake disc is driven to reversely drive the impeller to rotate through the transmission of the gear set, when the impeller rotates until the impeller lock pin can be inserted into the impeller, the power piece stops power transmission, the impeller is fixed in position, site safety measure can be completed, the impeller is not required to be rotated to a designated position by waiting for wind power, and the impeller position adjustment and fixing efficiency is improved.

2. According to the impeller angle adjustable driving device based on the wind turbine generator brake disc, the power piece outputs power and drives the driving roller to rotate, so that the driving gear rotates at the same time, the driven gear rotates by being meshed with the driving gear, the driven gear rotates along with the driven gear, and the peripheral wall of the driven roller drives the brake disc to move through contact friction, so that the position of the impeller is adjusted.

3. According to the impeller angle adjustable driving device based on the wind turbine generator brake disc, the driving roller and the driving gear are integrally formed, so that the structure of the driving roller and the driving gear is more stable, other processes required by connection of the driving roller and the driving gear are reduced, the service life of the driving roller and the driving gear is prolonged, and in addition, the driven roller and the driven gear are integrally formed.

4. According to the impeller angle adjustable driving device based on the wind turbine generator brake disc, when the driven gear rotates, the driven roller drives the driving belt to move through contact friction, and the inner peripheral wall of the driving belt drives the brake disc to rotate through contact friction, so that power is transmitted while the driven roller and the brake disc have a distance, and the adaptability of the device is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structural principle that a driven roller directly contacts a brake disc to drive a wind wheel to rotate;

fig. 2 is a schematic diagram of a structural principle of an embodiment of the utility model for driving a wind wheel to rotate by a brake disc through a transmission belt;

reference numerals illustrate:

100. a base; 1. a brake disc; 2. a power member; 3. a transmission assembly; 31. a driving roller; 32. driven roller; 33. a drive gear set; 331. a drive gear; 332. a driven gear; 34. a driving belt.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

At present, when working in a variable pitch system of a wind generating set, a fan impeller needs to be locked. When the wind speed is too small, the fan impeller cannot reach the designated position, the hub lock pin cannot be inserted, the wind speed is required to be lifted, time and labor are wasted, and the working time is delayed. The fan impeller rotates in a stop state, but rotates slowly because of blowing by wind power. When the impeller rotates, the impeller drives the rotating main shaft to belong to a low-speed shaft, then the main shaft passes through a gear box, the gear box changes speed, the speed change is changed into high speed, a brake disc 1 is arranged at the high-speed end, and the brake disc 1 is arranged between the gear box and a generator. The brake disc 1 plays a role in braking, and suddenly fails in the process of rotating the impeller or in other situations requiring braking, and the brake disc 1 positioned on the high-speed shaft is held by the brake caliper to perform braking.

The driving device provided in this embodiment drives the impeller to rotate reversely through the brake disc 1, and the specific embodiment is as follows:

as shown in fig. 1 to 2, an embodiment of the present utility model provides an impeller angle-adjustable driving device based on a wind turbine brake disc, which includes a base 100, a power member 2 and a transmission assembly 3. The brake disc 1 is rotatably arranged on the base 100, the impeller is in transmission fit with the brake disc 1 through the gear box, the brake disc 1 is arranged between the gear box and the generator, and if manual braking or fault braking is required, the brake caliper holds the brake disc 1 tightly, so that a braking effect is achieved. An impeller refers to a wind turbine component that converts wind energy into mechanical energy. The brake disc 1 is fixedly connected with the impeller, and the power piece 2 is fixed on the base 100 and is used for providing power for the rotation of the impeller; the transmission assembly 3 is arranged on the base 100, and the transmission is arranged between the power piece 2 and the brake disc 1, and is suitable for transmitting power output by the power piece 2 to the brake disc, and the power piece 2 drives the brake disc to rotate through the transmission assembly 3, so that the transmission belt of the gearbox drives the blades to rotate to a preset position.

When the impeller is required to be rotated, the power piece 2 transmits power to the brake disc 1 through the transmission component 3, the brake disc 1 is driven and then reversely drives the impeller to rotate through the transmission of the gear set, when the impeller rotates until the impeller lock pin can be inserted into the impeller, the power piece 2 stops power transmission, the position of the impeller is fixed, the on-site safety measure can be completed, the impeller is not required to be rotated to a designated position by waiting for wind power, and the position adjustment and fixing efficiency of the impeller is improved.

In this embodiment, the brake disc 1 passes through gear box synchronous drive cooperation with the impeller, the gear box includes box, high-speed axle, low-speed axle, high-speed axle and low-speed axle parallel arrangement each other are in the box, are equipped with intermeshing's gear on high-speed axle and the low-speed axle, and the brake disc 1 sets up on the high-speed axle, and the impeller sets up on the low-speed axle. The transmission of the gear box enables the synchronism and consistency of the rotation of the brake disc 1 and the impeller to be higher, and is beneficial to realizing the accurate control of the rotation angle of the impeller.

In some embodiments, the base 100 includes a vertical plate, and the brake disc 1 is a disc-shaped structure opposite to and parallel to the vertical plate. The center of the brake disc 1 is fixedly provided with a connecting shaft which is suitable for being connected with the longitudinal plate in a rotating way.

In some embodiments, as shown in fig. 1, the transmission assembly 3 includes a driving roller 31, a driven roller 32 and a transmission gear set 33, the driving roller 31 is rotatably connected to the base 100 and is fixedly connected to an output shaft of the power member 2, the driven roller 32 is rotatably connected to the base 100, the driven roller 32 and the driving roller 31 are located on the same side of the base 100, the driven roller 32 and the driving roller 31 are both located on one side of the base 100 close to the brake disc 1, and the peripheral wall of the driven roller 32 abuts against the peripheral wall of the brake disc 1 to drive the brake disc 1 to move through contact friction, and the driving roller 31 drives the driven roller 32 to rotate through the transmission gear set 33.

In some embodiments, the driving gear set 33 includes a driving gear 331 and a driven gear 332, the driving gear 331 is fixed on the driving roller 31, the driven gear 332 is fixed on the driven roller 32, and the outer circumference of the driven gear 332 is engaged with the outer circumference of the driving gear 331 to achieve the engagement driving between the driving gear 331 and the driven gear.

In the above-mentioned scheme, the power piece 2 outputs power and drives the driving roller 31 to rotate, so that the driving gear 331 rotates simultaneously, the driven gear 332 rotates through meshing with the driving gear 331, the driven gear 332 rotates with the driven roller 32, and the peripheral wall of the driven roller 32 drives the brake disc 1 to move through contact friction, so that the position of the impeller is adjusted.

In the above description, the components of the driving gear set 33 include, but are not limited to, the driving gear 331 and the driven gear 332, and the transmission manner of the driving roller 31 to the driven roller 32 is within the protection scope of the present embodiment.

In this embodiment, the driven roller 32 is a disc-shaped structure rotatably connected to a side wall of the base 100 near the brake disc 1, and the driven gear 332 is fixedly disposed at a center position of a side wall of the driven roller 32 far from the base 100. The power part 2 is arranged on one side of the base 100 away from the brake disc 1, and an output shaft of the power part 2 penetrates through the base 100 and is fixedly connected with the driving gear 331 positioned on the other side of the base 100.

In some embodiments, the driving roller 31 is formed by the output shaft of the power member 2, or the driving roller 31 is fixedly connected with the output shaft of the power member 2. The driving gear 331 is fixedly disposed on the driving roller 31, or the driving gear 331 and the driving roller 31 are integrally formed. The driving gear 331 and the base 100 have a set distance therebetween, which is consistent with the axial length of the driven roller 32, so as to ensure that the distances between the driving gear 331 and the base 100 and the distances between the driven gear 332 and the base 100 are consistent, and ensure that the driving gear 331 and the driven gear 332 can be engaged in a butt joint manner in height.

In some embodiments, a plurality of driven rollers 32 are provided, and a plurality of driven gears 332 are also provided and correspond one-to-one to the plurality of driven rollers 32. The stability of driving and the driving efficiency can be improved by providing a plurality of driven rollers 32 and driven gears 332.

Preferably, as shown in fig. 1, in this embodiment, the driven rollers 32 include two driven gears 332 disposed at an upper-lower interval, the two driven gears 332 are fixed on the two driven rollers 32 in a one-to-one correspondence manner, the two driven gears 332 are respectively meshed with the driving gear 331, and outer peripheral walls of the two driven rollers 32 are respectively in friction contact with the outer peripheral wall of the brake disc 1.

In some preferred embodiments, a friction plate or a rubber plate is provided on the outer peripheral wall of the driven roller 32 and/or the outer peripheral wall of the brake disc 1 to increase the friction therebetween.

Preferably, the driving roller 31 and the driving gear 331 are integrally formed, and the driven roller 32 and the driven gear 332 are integrally formed. The integrated forming ensures that the two structures are more stable, reduces other processes required by the connection of the two structures, and prolongs the service life of the two structures.

In some embodiments, the power member 2 is a motor, the output shaft of which is connected to the drive roller 31. The moment of controlling the rotation of the brake disc 1 is realized by controlling the moment of the rotation of the motor output shaft, thereby realizing the start and stop of controlling the rotation of the impeller.

In a variant embodiment, as shown in fig. 2, the transmission assembly 3 further comprises a transmission belt 34, a set distance exists between the driven roller 32 and the brake disc 1, the transmission belt 34 is sleeved on the peripheral walls of the driven roller 32 and the brake disc 1 at the same time, and the transmission belt 34 is suitable for transmitting power through contact friction between the transmission belt 34 and the driven roller 32 and the brake disc 1. The transmission belt 34 is tightly sleeved on the driven roller 32 and the outer peripheral wall of the brake disc 1, the diameter of the driven roller 32 is smaller than that of the brake disc 1, and the transmission gear set 33 plays a role in speed change so as to drive the brake disc 1 to rotate at a high speed with a small torque force.

In the above scheme, when the driven gear 332 rotates, the driven roller 32 drives the driving belt 34 to move through contact friction, and the inner peripheral wall of the driving belt 34 drives the brake disc 1 to rotate through contact friction, so that the driven roller 32 and the brake disc 1 transmit power while having a distance therebetween, and the adaptability of the device is improved. The driving belt 34 is a belt or a toothed belt, the driving gear 331 is driven to rotate by the motor, the driving belt 34 is driven to run by the driving gear 331 engaging with the two driven gears 332, the driving belt 34 is engaged with the high-speed shaft brake disc 1 by the driving belt 34, the driving belt 34 is engaged with the driven gears 332, the brake disc 1 is driven to rotate and then the fan impeller is driven to rotate, the purpose of turning is achieved, namely, after the impeller is driven to a preset position, the brake locks the high-speed shaft, and therefore the problems of difficulty in locking the wind wheel due to small wind speed and slow manual turning are fundamentally solved.

In the embodiment, the driving device is added on the brake disc 1 at the high-speed shaft side of the gear box, and the device can drive the brake disc 1 to rotate, so that the impeller is driven to rotate to a designated position, and then the fan impeller is locked, the working efficiency is greatly improved, and the labor is saved. The brake disc 1 is arranged between the gearbox and the generator, and if manual braking or fault braking is required, the brake caliper holds the brake disc 1 tightly, so that a braking effect is achieved. The driving device drives the impeller to rotate by driving the brake disc 1 to rotate a certain angle, and when the lock pin can be inserted into the positioning hole of the hub, the driving device stops driving, and simultaneously the lock pin positions the hub.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims

1. Impeller angularly adjustable drive arrangement based on wind turbine generator system brake disc, impeller passes through gear box transmission cooperation with brake disc (1), and its characterized in that includes:

a base (100);

a power element (2) fixed to the base (100) and adapted to power the rotation of the impeller;

the transmission assembly (3) is arranged between the power piece (2) and the brake disc (1) in a transmission mode, power output by the power piece (2) is suitable for being transmitted to the brake disc, and the power piece (2) drives the brake disc to rotate through the transmission assembly (3) so as to drive the impeller to rotate to a preset position.

2. The impeller angle adjustable driving device based on the wind turbine generator brake disc according to claim 1, wherein the gear box comprises a box body, a high-speed shaft and a low-speed shaft, the high-speed shaft and the low-speed shaft are arranged in the box body in parallel, intermeshing gears are arranged on the high-speed shaft and the low-speed shaft, the brake disc (1) is arranged on the high-speed shaft, and the impeller is arranged on the low-speed shaft.

3. The wind turbine brake disc based impeller angle adjustable driving device according to claim 1, wherein the transmission assembly (3) comprises:

a driving roller (31) rotatably connected to the base (100), and the driving roller (31) is fixedly connected to the output shaft of the power member (2);

the driven roller (32) is rotationally connected to the base (100), the driven roller (32) and the driving roller (31) are positioned on one side of the base (100), and the peripheral wall of the driven roller (32) is abutted against the peripheral wall of the brake disc (1) so as to drive the brake disc (1) to move through contact friction;

the driving roller (31) drives the driven roller (32) to rotate through the transmission gear set (33).

4. A wind turbine brake disc based impeller angle adjustable drive according to claim 3, wherein the drive gear set (33) comprises:

a driving gear (331), wherein the driving gear (331) is fixedly arranged on the driving roller (31);

and a driven gear (332), wherein the driven gear (332) is fixedly arranged on the driven roller (32), and the outer periphery of the driven gear (332) is meshed with the outer periphery of the driving gear (331).

5. The impeller angle adjustable driving device based on the wind turbine brake disc according to claim 4, wherein a plurality of driven rollers (32) are provided, and the driven gears (332) are also provided in a plurality and are in one-to-one correspondence with the driven rollers (32).

6. The wind turbine brake disc-based impeller angle adjustable driving device according to claim 4, wherein the driving roller (31) and the driving gear (331) are integrally formed.

7. The wind turbine brake disc-based impeller angle adjustable driving device according to claim 4, wherein the driven roller (32) and the driven gear (332) are integrally formed.

8. A wind turbine brake disc-based impeller angle adjustable driving device according to claim 3, wherein the transmission assembly (3) further comprises a transmission belt (34), a set distance exists between the driven roller (32) and the brake disc (1), the transmission belt (34) is sleeved on the peripheral walls of the driven roller (32) and the brake disc (1), and the transmission belt is suitable for transmitting power through contact friction between the transmission belt (34) and the driven roller (32) and the brake disc (1).

9. The wind turbine brake disc-based impeller angle adjustable driving device according to any one of claims 3-8, wherein the power part (2) is a motor, and an output shaft of the motor is fixedly connected with the driving roller (31).