CN218624492U

CN218624492U - Fan blade root connection structure

Info

Publication number: CN218624492U
Application number: CN202223090170.2U
Authority: CN
Inventors: 钱运昌
Original assignee: Shangwei Electromechanical Equipment Co ltd
Current assignee: Shangwei Electromechanical Equipment Co ltd
Priority date: 2022-11-17
Filing date: 2022-11-17
Publication date: 2023-03-14
Anticipated expiration: 2032-11-17

Abstract

The utility model provides a fan blade root connection structure, this design is convenient to dismantle joint block and blade and change, can change under the condition that a blade damages, avoid abandoning whole fan, resources are saved, it includes the fan shell, the motor is installed in the left side of fan shell, fixed mounting has the rotary rod on the output shaft of motor, the rotary rod rotates with the fan shell to be connected, the blade seat is installed to the outer end of rotary rod, three spread groove has been seted up in the outside of blade seat, all be provided with the connecting block in the three spread groove, the outside of three connecting block all is provided with the blade, be provided with fixed establishment on the blade seat, three connecting block all links to each other with fixed establishment, install the locating lever on the bottom inner wall of spread groove, the constant head tank has been seted up on the blade seat, locating lever and constant head tank swing joint, fixed mounting has the magnet piece on the inner wall of constant head tank, magnet piece and locating lever attract, fixed establishment includes three dead lever.

Description

Fan blade root connection structure

Technical Field

The utility model relates to a fan blade connects technical field, especially relates to a fan blade root connection structure.

Background

A composite material blade of a wind generating set is connected with a hub through a connecting piece at the root of the blade, various complex loads borne by the blade need to be transmitted to the hub through the connecting piece at the root of the blade, and the strength of a connecting structure formed by the composite material blade and the connecting piece directly influences the wind energy capturing capacity of the blade and the running stability of the wind generating set.

The existing fan blade and blade seat connection mode is a welding connection mode, the connection mode is stable, but any one blade is damaged to cause the damage of the whole fan, the blade cannot be replaced or is inconvenient to replace, and the working difficulty is increased.

SUMMERY OF THE UTILITY MODEL

To the defect that exists among the prior art, the utility model provides a technical problem do: the existing fan blade and blade seat connection mode is a welding connection mode, the connection mode is stable, but any one blade is damaged to cause the damage of the whole fan, the blade cannot be replaced or is inconvenient to replace, the working difficulty is increased, and the fan blade root connection structure is provided.

In order to achieve the above purpose, the utility model provides a:

the utility model provides a fan blade root connection structure, includes the fan shell, and the motor is installed in the left side of fan shell, and fixed mounting has the rotary rod on the output shaft of motor, and the rotary rod rotates with the fan shell to be connected, and the blade seat is installed to the outer end of rotary rod, and three spread groove has been seted up in the outside of blade seat, all is provided with the connecting block in the three spread groove, and the outside of three connecting block all is provided with the blade, is provided with fixed establishment on the blade seat, and three connecting block all links to each other with fixed establishment.

Preferably, install the locating lever on the bottom inner wall of spread groove, seted up the constant head tank on the blade seat, locating lever and constant head tank swing joint, fixed mounting has the magnet piece on the inner wall of constant head tank, magnet piece and locating lever attraction.

Preferably, fixed establishment includes three dead lever, has seted up three fixed orifices on the blade seat, and same ring is installed in the outside of three dead lever to dead lever and fixed orifices sliding connection, the mounting groove has been seted up on the outside swing joint of ring and rotary rod on the connecting block, dead lever and mounting groove looks adaptation, and the outside cover of ring is equipped with the rubber circle.

Preferably, a plurality of air inlets are opened on the left side of the fan shell, and a protective net is installed on the right side of the fan shell through screws.

Preferably, fixed mounting has the stopper on the inner wall of fixed orifices, has seted up the spacing groove on the dead lever, and the stopper is connected with the inner wall sliding connection in spacing groove, and the spring is installed in the outside of stopper, and the spring is located the spacing inslot and links to each other with the inner wall in spacing groove.

Compared with the prior art, the utility model has the advantages of:

1. when the blades need to be disassembled and replaced, the protective net is disassembled, then the circular ring is pushed to move through the rubber ring, the circular ring drives the three fixing rods to move, the fixing rods leave the corresponding mounting grooves, the fixing of the connecting blocks can be released, the blades are pulled to drive the connecting blocks to move, the connecting blocks and the blades can be disassembled, and the blades are convenient to disassemble;

2. during installation, the connecting block is taken out of the connecting groove and then loosened, and the spring provides elasticity for the fixing rod, so that the fixing rod can enter the mounting groove, the connecting block can be conveniently fixed, and the installation and the use are convenient;

the utility model discloses the change is dismantled with piecing together piece and blade to the convenience, can change under the condition that a blade damaged, avoids abandoning whole fan, resources are saved.

Drawings

FIG. 1 is a schematic diagram of the main structure of the present design;

FIG. 2 is a schematic cross-sectional view of FIG. 1 of the present design;

FIG. 3 is a schematic diagram of the structure of portion A of FIG. 2 in the present design;

FIG. 4 is a schematic side view of the ring and the fixing rod of the present design.

In the figure: 1. a fan housing; 2. a motor; 3. an air inlet; 4. a protective net; 5. a blade; 6. rotating the rod; 7. a blade seat; 8. connecting grooves; 9. positioning a rod; 10. positioning a groove; 11. a magnet block; 12. mounting grooves; 13. a fixing hole; 14. fixing the rod; 15. a circular ring; 16. a rubber ring; 17. a limiting groove; 18. a spring; 19. a limiting block; 20. and (4) connecting the blocks.

Detailed Description

The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Referring to fig. 1-4, a fan blade root connecting structure comprises a fan shell 1, a motor 2 is installed on the left side of the fan shell 1, a rotating rod 6 is fixedly installed on an output shaft of the motor 2, the rotating rod 6 is rotatably connected with the fan shell 1, a blade seat 7 is installed at the outer end of the rotating rod 6, three connecting grooves 8 are formed in the outer side of the blade seat 7, connecting blocks 20 are arranged in the three connecting grooves 8, blades 5 are arranged on the outer sides of the three connecting blocks 20, a fixing mechanism is arranged on the blade seat 7, and the three connecting blocks 20 are connected with the fixing mechanism.

In this embodiment, the positioning rod 9 is installed on the inner wall of the bottom of the connecting groove 8, the positioning groove 10 is formed in the blade seat 7, the positioning rod 9 is movably connected with the positioning groove 10, the magnet block 11 is fixedly installed on the inner wall of the positioning groove 10, and the magnet block 11 is attracted to the positioning rod 9.

In this embodiment, fixed establishment includes three dead lever 14, has seted up three fixed orifices 13 on the blade seat 7, dead lever 14 and fixed orifices 13 sliding connection, and same ring 15 is installed in the outside of three dead lever 14, and ring 15 and rotary rod 6's outside swing joint have seted up mounting groove 12 on the connecting block 20, and dead lever 14 and mounting groove 12 looks adaptation, the outside cover of ring 15 are equipped with rubber circle 16.

In this embodiment, a plurality of air inlets 3 have been seted up to the left side of fan shell 1, and protection network 4 is installed through the screw in the right side of fan shell 1.

In this embodiment, fixed mounting has stopper 19 on the inner wall of fixed orifices 13, has seted up spacing groove 17 on the dead lever 14, stopper 19 and spacing groove 17's inner wall sliding connection, and spring 18 is installed in stopper 19's the outside, and spring 18 is located spacing groove 17 and links to each other with the inner wall of spacing groove 17.

The working principle is as follows: during the use, motor 2 drives rotary rod 6 rotatory, rotary rod 6 drives three blade 5 rotatoryly through blade seat 7, can work, if need dismantle when changing blade 5, dismantle protection network 4, then promote ring 15 through rubber circle 16 and remove, ring 15 drives three dead lever 14 and removes, dead lever 14 leaves corresponding mounting groove 12, can relieve the fixed of connecting block 20, pulling blade 5 and driving connecting block 20 and remove, can dismantle connecting block 20 and blade 5, conveniently dismantle, during the installation, take out connecting block 20 from spread groove 8, then relax, provide elasticity for dead lever 14 through spring 18, make dead lever 14 can get into in mounting groove 12, can conveniently fix connecting block 20, conveniently install and use.

The present invention is not limited to the above preferred embodiments, and any person can obtain other products in various forms without changing the shape or structure of the product, and all the products have the same or similar technical solutions as the present invention, and are within the scope of protection.

Claims

1. The utility model provides a fan blade root connection structure, includes fan shell (1), and motor (2), its characterized in that are installed in the left side of fan shell (1): fixed mounting has rotary rod (6) on the output shaft of motor (2), and rotary rod (6) rotate with fan shell (1) and are connected, and blade seat (7) are installed to the outer end of rotary rod (6), and three spread groove (8) have been seted up in the outside of blade seat (7), all are provided with connecting block (20) in three spread groove (8), and the outside of three connecting block (20) all is provided with blade (5), is provided with fixed establishment on blade seat (7), and three connecting block (20) all link to each other with fixed establishment.

2. The wind turbine blade root connection structure of claim 1, wherein: the bottom inner wall of the connecting groove (8) is provided with a positioning rod (9), the blade seat (7) is provided with a positioning groove (10), and the positioning rod (9) is movably connected with the positioning groove (10).

3. The wind turbine blade root connection structure of claim 2, wherein: and a magnet block (11) is fixedly mounted on the inner wall of the positioning groove (10), and the magnet block (11) is attracted with the positioning rod (9).

4. The wind turbine blade root connection structure of claim 1, wherein: fixing mechanism includes three dead lever (14), has seted up three fixed orifices (13) on blade seat (7), dead lever (14) and fixed orifices (13) sliding connection, and same ring (15) are installed in the outside of three dead lever (14), and the outside swing joint of ring (15) and rotary rod (6), has seted up mounting groove (12) on connecting block (20), and dead lever (14) and mounting groove (12) looks adaptation, the outside cover of ring (15) is equipped with rubber circle (16).

5. The blower blade root connection structure of claim 1, wherein: a plurality of air inlets (3) have been seted up in the left side of fan shell (1), and protection network (4) are installed through the screw in the right side of fan shell (1).

6. The wind turbine blade root connection structure of claim 4, wherein: fixed mounting has stopper (19) on the inner wall of fixed orifices (13), has seted up spacing groove (17) on dead lever (14), the inner wall sliding connection of stopper (19) and spacing groove (17).

7. The wind turbine blade root connection structure of claim 6, wherein: and a spring (18) is arranged on the outer side of the limiting block (19), and the spring (18) is positioned in the limiting groove (17) and is connected with the inner wall of the limiting groove (17).