CN213331391U

CN213331391U - Wind-powered electricity generation blade root structure and blade

Info

Publication number: CN213331391U
Application number: CN202022231633.7U
Authority: CN
Inventors: 常以磊
Original assignee: Senruien Industrial Technology Suzhou Co ltd
Current assignee: Senruien Industrial Technology Suzhou Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-06-01
Anticipated expiration: 2030-10-09

Abstract

The utility model relates to a wind-powered electricity generation blade root structure, including the wind-powered electricity generation blade, be provided with the recess on the wind-powered electricity generation blade, the recess sets up and the recess end to end sets up at wind-powered electricity generation blade root; still including a plurality of joint strips of cooperation joint in the recess, joint strip joint is gone into the recess after and is flushed with wind-powered electricity generation blade surface. When the wind power blade is formed by filling, the bearing capacity of each part of the wind power blade is different due to the fact that wrinkles and the like are generated on fiber fabrics in the wind power blade, in the scheme, an annular groove is formed in the wind power blade, then a clamping strip is arranged on the part with weaker bearing capacity according to needs, the bearing capacity of the part is enhanced through the clamping strip, and therefore the whole bearing capacity of the wind power blade is balanced as much as possible; the hard clamping strip is clamped at the part with weaker bearing capacity, the flexible clamping strip is filled at other parts, and the filled flexible clamping strip is flush with the surface of the wind power blade.

Description

Wind-powered electricity generation blade root structure and blade

Technical Field

The utility model relates to a wind-powered electricity generation blade local structure, in particular to wind-powered electricity generation blade root structure and blade.

Background

Wind blades are key components of wind generators, and blade mass is critical to the reliability of wind turbine operation. At present, two main manufacturing processes of the wind power blade are provided, one is a prepreg forming process, the other is a vacuum infusion forming process, and the latter is more widely applied. The wind power blade manufactured by the vacuum infusion molding process usually uses fiber reinforced fabric, and the fabric structure has certain softness in order to keep good shape following performance with the curved surface of the blade mold. But also because of the softness of the fabric, it is subject to deformation and wrinkling during the laying and vacuuming process. Because the fiber reinforced fabric is the main bearing material of the blade, the bearing capacity of the fiber reinforced fabric can be reduced due to the deformation and the wrinkle, so that the bearing capacity of one part of the blade is too weak, the integral bearing capacity is unbalanced, the quality hidden trouble is caused to the operation of the blade, and the fiber reinforced fabric is classified as a serious quality defect in the industry.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a wind-powered electricity generation blade root structure and blade.

The above technical purpose of the present invention can be achieved by the following technical solutions: a wind power blade root structure comprises a wind power blade, wherein a groove is formed in the wind power blade, the groove is formed in the root of the wind power blade, and the grooves are arranged end to end; still including a plurality of joint strips of cooperation joint in the recess, joint strip joint is gone into the recess after and is flushed with wind-powered electricity generation blade surface.

Preferably, the clamping strip comprises a hard clamping strip and a flexible clamping strip.

Preferably, the flexible clamping strip is made of flexible rubber, and the hard clamping strip is made of the same material as the wind power blade.

Preferably, the side wall of the groove is provided with a fixing groove, and the clamping strip is provided with a positioning strip matched with the fixing groove.

Preferably, the positioning strip is arranged on the side wall of the hard clamping strip, a clamping groove is formed in the surface of the hard clamping strip, and the positioning strip further comprises a clamping block which is inserted in the clamping groove in a matched mode.

Preferably, the wind power blade surface downward groove forms a through groove, and the through groove is communicated with the fixing groove.

Preferably, an abutting plate is elastically connected in the passing groove.

The above technical purpose of the present invention can be achieved by the following technical solutions: a wind power blade comprising the wind power blade root structure of any one of the above.

To sum up, the utility model discloses following beneficial effect has:

1. when the wind power blade is formed by filling, the bearing capacity of each part of the wind power blade is different due to the fact that wrinkles and the like are generated on fiber fabrics in the wind power blade, in the scheme, an annular groove is formed in the wind power blade, then a clamping strip is arranged on the part with weaker bearing capacity according to needs, the bearing capacity of the part is enhanced through the clamping strip, and therefore the whole bearing capacity of the wind power blade is balanced as much as possible; the hard clamping strip is clamped at the part with weaker bearing capacity, the flexible clamping strip is filled at other parts, and the filled flexible clamping strip is flush with the surface of the wind power blade.

Drawings

FIG. 1 is a schematic view of a part of the structure in the embodiment;

FIG. 2 is a sectional view of a part of the structure of the embodiment;

FIG. 3 is a partial structural sectional view II of the embodiment.

In the figure, 1, a wind power blade; 11. a groove; 12. a clamping strip; 121. a hard clamping strip; 122. a flexible clamping strip; 123. a card slot; 124. a clamping block; 111. fixing grooves; 112. a positioning bar; 13. passing through the slot; 131. abutting against the board.

Detailed Description

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

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Example (b):

a wind power blade root structure and a blade are disclosed, as shown in figure 1, the wind power blade comprises a wind power blade 1, a groove 11 is arranged on the wind power blade 1, the groove 11 is arranged at the root of the wind power blade 1, and the grooves 11 are arranged end to end; the wind power blade is characterized by further comprising a plurality of clamping strips 12 which are clamped in the grooves 11 in a matched mode, and the clamping strips 12 are clamped into the grooves 11 and then flush with the surface of the wind power blade 1; when the wind power blade is formed by filling, the bearing capacity of each part of the wind power blade 1 is different due to the fact that wrinkles and the like are generated on the fiber fabric, in the scheme, the annular groove 11 is formed in the wind power blade 1, then the clamping strip 12 is installed on the part with weaker bearing capacity as required, and the bearing capacity of the clamping strip 12 is enhanced, so that the whole bearing capacity of the wind power blade 1 is balanced as much as possible.

As shown in fig. 1, the clamping strip 12 includes a hard clamping strip 121 and a flexible clamping strip 122, the hard clamping strip 121 is clamped at a portion with weak bearing capacity, the flexible clamping strip 122 is filled at other positions, and the filled portion is flush with the surface of the wind power blade.

As shown in fig. 1, the flexible clamping strip 122 is made of flexible rubber, and the hard clamping strip 121 is made of the same material as the wind turbine blade 1.

As shown in fig. 1 and 2, the side wall of the groove 11 is provided with a fixing groove 111, the clamping bar 12 is provided with a positioning bar 112 matched with the fixing groove 111, and the positioning bar 112 is clamped in the fixing groove 111 to avoid falling off.

As shown in fig. 1 and 2, the positioning bar 112 is disposed on a side wall of the rigid clamping bar 121, and the surface of the rigid clamping bar 121 is provided with a clamping groove 123 and further comprises a clamping block 124 inserted in the clamping groove 123 in a matching manner; the hard clamping strip 121 is arranged in the groove 11, the clamping groove 123 plays a role in elastic force adjustment, and the clamping block 124 is clamped in the clamping groove 123 after the hard clamping strip 121 is successfully arranged, so that the clamping strip 12 is prevented from falling off from the groove 11.

As shown in fig. 1 and 3, a downward groove on the surface of the wind power blade 1 is formed through the groove 13, and is communicated with the fixing groove 111 through the groove 13, so that the hard clamping strip 121 is convenient to install.

As shown in fig. 1 and 3, an abutting plate 131 is elastically connected to the groove 13.

The working principle is as follows:

when the wind power blade is formed by filling, the bearing capacity of each part of the wind power blade 1 is different due to the fact that wrinkles and the like are generated on fiber fabrics in the wind power blade, in the scheme, an annular groove 11 is formed in the wind power blade 1, then a clamping strip 12 is arranged on the part with weaker bearing capacity according to needs, and the clamping strip 12 enhances the bearing capacity of the part, so that the whole bearing capacity of the wind power blade 1 is balanced as much as possible; the hard clamping strip 121 is clamped on the part with weak bearing capacity, the flexible clamping strip 122 is filled at other parts, and the filled part is flush with the surface of the wind power blade.

Claims

1. The utility model provides a wind-powered electricity generation blade root structure, includes wind-powered electricity generation blade (1), its characterized in that: the wind power blade (1) is provided with a groove (11), the groove (11) is formed in the root of the wind power blade (1), and the grooves (11) are arranged end to end; still including a plurality of joint strips (12) of cooperation joint in recess (11), joint strip (12) joint is gone into back and is flushed with wind-powered electricity generation blade (1) surface in recess (11).

2. The wind turbine blade root structure of claim 1, wherein: the clamping strip (12) comprises a hard clamping strip (121) and a flexible clamping strip (122).

3. The wind turbine blade root structure of claim 2, wherein: the flexible clamping strip (122) is made of flexible rubber, and the hard clamping strip (121) is made of the same material as the wind power blade (1).

4. The wind turbine blade root structure of claim 3, wherein: the clamping device is characterized in that a fixing groove (111) is formed in the side wall of the groove (11), and a positioning strip (112) matched with the fixing groove (111) is arranged on the clamping strip (12).

5. The wind turbine blade root structure of claim 4, wherein: the positioning strip (112) is arranged on the side wall of the hard clamping strip (121), a clamping groove (123) is formed in the surface of the hard clamping strip (121), and the positioning strip further comprises a clamping block (124) which is inserted into the clamping groove (123) in a matched mode.

6. The wind turbine blade root structure of claim 5, wherein: the downward groove of wind power blade (1) surface forms through groove (13), through groove (13) and fixed slot (111) intercommunication.

7. The wind turbine blade root structure of claim 6, wherein: an abutting plate (131) is elastically connected in the passing groove (13).

8. A wind blade comprising a wind blade root structure according to any of the preceding claims 1-7.