CN215830631U

CN215830631U - Special firm type frock of wind power generation wheel hub

Info

Publication number: CN215830631U
Application number: CN202121963641.9U
Authority: CN
Inventors: 平建军
Original assignee: Zhejiang Jilong Machine Co ltd
Current assignee: Zhejiang Jilong Machine Co ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-02-15
Anticipated expiration: 2031-08-20

Abstract

The utility model provides a special stable tool for a wind power generation hub. Special firm type frock of wind power generation wheel hub includes: a variable pitch drive and a main hub; the three auxiliary wheel hub, it is three the equal fixed connection of auxiliary wheel hub is in main wheel hub's surface, and is three the mounting groove has all been seted up to auxiliary wheel hub's inside, the bottom of mounting groove inner wall is rotated and is connected with the variable pitch gear, and is three auxiliary wheel hub's outside has all seted up the driving groove. The special stable tool for the wind power generation hub provided by the utility model drives the driving gear to rotate through the output shaft, so that the driving gear drives the three driven gears, the three driven gears rotate to drive the three variable pitch gears to rotate, and thus the connected blades are adjusted in angle.

Description

Special firm type frock of wind power generation wheel hub

Technical Field

The utility model relates to the field of wind power generation instruments, in particular to a special stable tool for a wind power generation hub.

Background

In a wind turbine generator system, a hub is an important component for connecting a blade and a main shaft of a generator, and bears thrust, torque and bending moment of wind acting on the blade, and transmits the force and the torque of the blade to the generator.

In the operation process of the wind generating set, in order to better acquire wind energy and convert the wind energy into electric energy, a variable pitch control technology is generally adopted, so that the capturing capability of the wind generating set on the wind energy is improved, and the availability and the generating capacity of the wind generating set are improved. The pitch control technology is simple, namely, the attack angle of the airflow to the blades is changed by adjusting the pitch angle of the blades, and then the pneumatic torque and the pneumatic power captured by the impeller are controlled.

The blades are required to rotate relative to the hub when the blades are changed into the pitch, but in order to meet the rotation requirement between the blades and the hub, an independent pitch drive is installed on each blade hub, and if the independent pitch drive is not unified enough when being started, the angle of each blade can be different, so that the efficiency of obtaining wind energy is influenced.

Therefore, it is necessary to provide a special stable tool for a wind turbine hub to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a special stable tool for a wind power generation hub, which solves the problem that the blade angle is different due to the independently driven variable pitch drive.

In order to solve the technical problem, the special stable tool for the wind power generation hub provided by the utility model comprises: a variable pitch drive and a main hub;

the three auxiliary hubs are fixedly connected to the outer surface of the main hub, mounting grooves are formed in the three auxiliary hubs, a variable pitch gear is rotatably connected to the bottom of the inner wall of each mounting groove, and transmission grooves are formed in the outer parts of the three auxiliary hubs;

the three rotating connecting columns are respectively and fixedly connected to the outer parts of the three auxiliary hubs, and the bottoms of the three rotating connecting columns are respectively and rotatably connected with driven gears;

the top of the main hub is rotatably connected with a driving gear, the top of the driving gear is fixedly connected with a connecting shaft, an output shaft of the pitch-variable driving machine is fixedly connected with the connecting shaft, gear teeth of the driving gear are meshed with gear teeth of three driven gears, and the driven gears penetrate through the transmission groove and extend to the inside of the mounting groove.

Preferably, the three extension board of main wheel hub's outside fixedly connected with, it is three the equal fixedly connected with connecting rod in top of extension board, it is three the top fixedly connected with mounting disc of connecting rod, it is three the connecting rod is the slope connection.

Preferably, the bottom of the variable pitch drive machine is fixedly connected with a connecting disc, and the connecting disc is used for mounting the variable pitch drive machine on the top of the mounting disc.

Preferably, the bottom of the main hub is fixedly connected with a support bearing.

Preferably, the support bearing is externally sleeved with a rotating cover.

Preferably, blade connectors are installed inside the three installation grooves and at the top of the pitch gear, and the blade connectors are existing devices.

Preferably, the outer surface of the rotating cover is fixedly connected with a shielding ring, and the length of the shielding ring is longer than the bottom of the rotating cover and extends to cover the joint of the rotating cover and the motor cabin.

Compared with the prior art, the special stable tool for the wind power generation hub provided by the utility model has the following beneficial effects:

the utility model provides a special stable tool for a wind power generation hub, wherein a variable pitch driving machine is started to drive a driving gear to rotate through an output shaft, so that the driving gear drives three driven gears, the three driven gears rotate to drive the three variable pitch gears to rotate, so that the angles of connected blades are adjusted, and a wind power generator does not need to drive a moving blade to adjust through independent variable pitch, so that the adjusted angles of the three blades of the wind power generator are kept consistent, and the influence of different angles on the acquisition of wind energy is avoided.

Drawings

Fig. 1 is a schematic structural view of a first embodiment of a special stable type tooling for a wind turbine hub, provided by the utility model;

FIG. 2 is a three-dimensional perspective view of the hub shown in FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a schematic structural view of a second embodiment of the special stable type tooling for the wind turbine hub provided by the utility model.

Reference numbers in the figures: 1. the variable-pitch driving device comprises a mounting disc, 2, a connecting disc, 3, a variable-pitch driving machine, 4, a communication groove, 5, a rotating cover, 6, a variable-pitch gear, 7, a connecting shaft, 8, a connecting rod, 9, an extending plate, 10, a mounting groove, 11, an auxiliary hub, 12, a main hub, 13, a supporting bearing, 14, a driven gear, 15, a rotating connecting column, 16, a transmission groove, 17, a driving gear, 18, a shielding ring, 19 and a blade connector.

Detailed Description

The utility model is further described with reference to the following figures and embodiments.

First embodiment

Please refer to fig. 1, fig. 2 and fig. 3, wherein fig. 1 is a schematic structural diagram of a first embodiment of a special stable fixture for a wind turbine hub according to the present invention; FIG. 2 is a three-dimensional perspective view of the hub shown in FIG. 1; fig. 3 is a partially enlarged view of a portion a in fig. 2. The special firm type frock of wind power generation wheel hub includes: a pitch drive machine 3 and a main hub 12;

the three auxiliary hubs 11 are fixedly connected to the outer surface of the main hub 12, mounting grooves 10 are formed in the three auxiliary hubs 11, a variable pitch gear 6 is rotatably connected to the bottom of the inner wall of each mounting groove 10, and transmission grooves 16 are formed in the outer portions of the three auxiliary hubs 11;

the three rotating connecting columns 15 are respectively and fixedly connected to the outer parts of the three auxiliary hubs 11, and the bottoms of the three rotating connecting columns 15 are respectively and rotatably connected with driven gears 14;

the top of the main hub 12 is rotatably connected with a driving gear 17, the top of the driving gear 17 is fixedly connected with a connecting shaft 7, an output shaft of the variable pitch driving machine 3 is fixedly connected with the connecting shaft 7, gear teeth of the driving gear 17 are meshed with gear teeth of three driven gears 14, the outer portions of the driven gears 14 penetrate through a transmission groove 16 and extend to the inner portion of the mounting groove 10, and the gear teeth of the driven gears 14 are meshed with gear teeth of the variable pitch gear 6.

The three extending plates 9 are fixedly connected to the outer portion of the main hub 12, connecting rods 8 are fixedly connected to the tops of the three extending plates 9, the top ends of the three connecting rods 8 are fixedly connected with the mounting disc 1, the three connecting rods 8 are connected in an inclined mode, and the three extending plates 9 are located in gaps among the three auxiliary hubs 11 respectively;

the bottom of the variable pitch driving machine 3 is fixedly connected with a connecting disc 2, and the connecting disc 2 is used for mounting the variable pitch driving machine 3 on the top of the mounting disc 1;

the bottom of the main hub 12 is fixedly connected with a support bearing 13;

the outer part of the supporting bearing 13 is sleeved with a rotating cover 5;

blade connectors 19 are mounted inside the three mounting grooves 10 and at the top of the pitch gear 6, and the blade connectors 19 are existing devices and used for connecting the blades of the generator.

The working principle of the special stable tool for the wind power generation hub provided by the utility model is as follows:

the variable pitch driving machine 3 is installed between the connecting disc 2 and the mounting disc 1, then the three blades are respectively inserted into the auxiliary hub 11 and installed with the blade connector 19, the supporting bearing 13 and a connecting shaft of the generator are installed, and meanwhile, the rotating cover 5 is sleeved outside the hub and fixed to complete installation of the hub;

when the angle of blade needs to be adjusted, the variable pitch driving machine 3 is started, the driving gear 17 is driven to rotate through the rotating shaft, so that the driving gear 17 is controlled to drive the three driven gears 14, the three variable pitch gears 6 are driven to rotate through the rotation of the three driven gears 14, the connected fan blades are driven to adjust the angle, and the three blades are adjusted under the driving of the variable pitch driving machine.

the variable pitch driving machine 3 is started to drive the driving gear 17 to rotate through the output shaft, so that the driving gear 17 drives the three driven gears 14, the three driven gears 14 rotate to drive the three variable pitch gears 6 to rotate, so that the connected blades are adjusted in angle, the wind driven generator is not required to be adjusted through an independent variable pitch driving belt moving blade, the three blades of the wind driven generator are kept consistent in angle, and the acquisition of wind energy caused by different angles is avoided.

Second embodiment

Referring to fig. 4, based on the special stable tooling for a wind turbine hub provided in the first embodiment of the present application, a second embodiment of the present application provides another special stable tooling for a wind turbine hub. The second embodiment is only the preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.

Specifically, the difference of the special firm type frock of wind power generation wheel hub that this application provided lies in, the fixed surface of rotatory cover 5 is connected with shelters from ring 18, shelters from the bottom of ring 18 length and is good at rotatory cover 5, and extend to cover to with motor cabin junction for avoid the rainwater to pass through in the connecting gap entering device.

through the outside at rotatory cover 5, and be located the bottom of generator one side, the installation round shelters from ring 18 to make the hookup location of wheel hub and generator, can be in the effectual gap entering device that avoids the rainwater to pass through the junction of rainy day inside, make the generator obtain effectual protection, improved the life of generator.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a special firm type frock of wind power generation wheel hub which characterized in that includes: a variable pitch drive (3) and a main hub (12);

the three auxiliary hubs (11) are fixedly connected to the outer surface of the main hub (12), mounting grooves (10) are formed in the three auxiliary hubs (11), a variable pitch gear (6) is rotatably connected to the bottom of the inner wall of each mounting groove (10), and transmission grooves (16) are formed in the outer parts of the three auxiliary hubs (11);

the three rotating connecting columns (15) are respectively and fixedly connected to the outer parts of the three auxiliary hubs (11), and the bottoms of the three rotating connecting columns (15) are respectively and rotatably connected with driven gears (14);

the top of main wheel hub (12) rotates and is connected with driving gear (17), the top fixedly connected with connecting axle (7) of driving gear (17).

2. The special stable type tooling for wind power generation hubs according to claim 1, wherein three extension plates (9) are fixedly connected to the outside of the main hub (12), the top of each of the three extension plates (9) is fixedly connected with a connecting rod (8), and the top ends of the three connecting rods (8) are fixedly connected with a mounting plate (1).

3. The special stable type tooling for the wind power generation hub according to claim 1, wherein the bottom of the pitch drive machine (3) is fixedly connected with a connecting disc (2).

4. The special stable tooling for the wind power generation hub according to claim 1, wherein a support bearing (13) is fixedly connected to the bottom of the main hub (12).

5. The special steady type frock of wind power generation wheel hub of claim 4 characterized in that, the outside cover of support bearing (13) is equipped with rotatory cover (5).

6. The special firm type frock of wind power generation wheel hub of claim 1 characterized in that, the blade connector (19) is installed to the inside of three mounting grooves (10) and be located the top of pitch gear (6).

7. The special stable type tooling for the wind power generation hub according to claim 5, wherein a shielding ring (18) is fixedly connected to the outer surface of the rotating cover (5).