CN215486354U

CN215486354U - Telescopic wind driven generator blade

Info

Publication number: CN215486354U
Application number: CN202122365176.5U
Authority: CN
Inventors: 史春城; 刘妍蕾; 庞继勇
Original assignee: SEPCO Electric Power Construction Co Ltd
Current assignee: SEPCO Electric Power Construction Co Ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-01-11
Anticipated expiration: 2031-09-28

Abstract

The utility model discloses a telescopic wind driven generator blade, and relates to the technical field of fan blades. Including fixed blade, set up the flexible blade of one-level in the fixed blade, set up the flexible blade of second grade in the flexible blade of one-level, fixed blade, the flexible blade of one-level and second grade are narrow wide terrace with edge form down, fixed blade top surface length is good at to the flexible blade bottom surface length of one-level, the flexible blade top surface length of one-level is good at to the flexible blade bottom surface length of second grade, all set up positioning bolt on fixed blade and the flexible blade of one-level, the last unfilled corner that sets up of positioning bolt. The utility model has the beneficial effects that: the convenience of fan blade transportation has been improved.

Description

Telescopic wind driven generator blade

Technical Field

The utility model mainly relates to the technical field of fan blades, in particular to a telescopic wind driven generator blade.

Background

The existing land-based fan blades have huge volume, generally about 75 meters. Therefore, the transportation of the wind turbine is very inconvenient, and a special transportation truck is generally adopted for transportation, so that the obstacles of turning or rugged road sections in the transportation process are overcome, and the transportation cost is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides a telescopic wind driven generator blade, which improves the prior fan blade in a sectional telescopic manner, and improves the convenience of fan blade transportation.

In order to achieve the purpose, the utility model is realized by the following technical scheme:

the utility model provides a telescopic aerogenerator blade, includes fixed blade, set up the flexible blade of one-level in the fixed blade, set up the flexible blade of second grade in the flexible blade of one-level, fixed blade, the flexible blade of one-level and the flexible blade of second grade are narrow wide terrace with edge form down, the flexible blade bottom surface length of one-level is good at fixed blade top surface length, the flexible blade top surface length of one-level is good at to the flexible blade bottom surface length of second grade, all set up positioning bolt on fixed blade and the flexible blade of one-level, the last unfilled corner that sets up of positioning bolt.

The fixed blade is provided with a first annular sleeve and a second annular sleeve, and the positioning bolts are respectively positioned on the first annular sleeve and the second annular sleeve.

The first annular sleeve and the second annular sleeve are telescopic annular sleeves.

First annular cover and second annular cover one end all set up the arch, set up the screw hole in the arch, threaded hole sets up adjusting bolt, ball universal joint is set up to adjusting bolt one end, ball universal joint is located first annular cover and second annular cover and sheathes in and keeps away from protruding one end.

The positioning bolts on the fixed blade and the first-stage telescopic blade are multiple and are distributed annularly.

Compared with the prior art, the utility model has the beneficial effects that:

this device is through being divided into fixed blade, one-level flexible blade, the flexible blade three-section of second grade with the fan blade, and it is firm through the positioning bolt that has the unfilled corner when using, then during the transportation with the flexible blade of one-level and the flexible blade of second grade shrink to fixed blade in, utilize the hollow structure form of current fan blade, improve the fan blade for retractable, improved the convenience of fan blade transportation.

Drawings

FIG. 1 is a front view structural schematic of the present invention;

FIG. 2 is a schematic top view of a first annular sleeve according to the present invention;

FIG. 3 is a schematic view of a positioning bolt of the present invention;

FIG. 4 is an enlarged view of the portion I of the present invention.

The reference numbers indicated in the figures: 1. a fixed blade; 2. a first stage telescopic blade; 3. two-stage telescopic blades; 4. positioning the bolt; 5. unfilled corners; 6. a first annular sleeve; 7. a second annular sleeve; 8. a protrusion; 9. adjusting the bolt; 10. ball joint universal joint.

Detailed Description

The utility model is further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.

The utility model provides a telescopic aerogenerator blade, includes fixed blade 1, set up one-level flexible blade 2 in the fixed blade 1, set up second grade flexible blade 3 in the one-level flexible blade 2, fixed blade 1, one-level flexible blade 2 and second grade flexible blade 3 are narrow wide terrace with edge form down, 1 top surface length of fixed blade is good at to 2 bottom surface length of one-level flexible blade, 3 bottom surface length of second grade flexible blade are good at 2 top surface length of one-level flexible blade, and the setting of terrace with bottom surface top surface length ensures that the blade can not stretch out when stretching out and drop, and the laminating is inseparable moreover, reduces the segmentation to blade pivoted interference. All set up positioning bolt 4 on fixed blade 1 and the one-level flexible blade 2, set up unfilled corner 5 on positioning bolt 4. The unfilled corner is as shown in the attached drawing, is matched with the shape of the frustum pyramid, can be tightly attached to the blade, and ensures the firmness of the positioned position. This device is through being divided into fixed blade, one-level flexible blade, the flexible blade three-section of second grade with the fan blade, and as shown in figure 1 when using, as optimizing, can set up the round hole on the flexible blade of second grade, sets up the soft rope in the round hole, the tractive of being convenient for. After the draught is finished, the fan blade is firmly fixed through the positioning bolt with the unfilled corner, the positioning bolt is loosened during transportation to enable the first-stage telescopic blade and the second-stage telescopic blade to be contracted into the fixed blade, the fan blade is improved to be telescopic by utilizing the hollow structure form of the existing fan blade, and the convenience in transportation of the fan blade is improved.

Further, a first annular sleeve 6 and a second annular sleeve 7 are arranged on the fixed blade 1, and the positioning bolts 4 are respectively arranged on the first annular sleeve 6 and the second annular sleeve 7. The annular sleeve is arranged at the blade connecting part, so that the extending connection firmness between the telescopic blades is further improved.

Further, the first annular sleeve 6 and the second annular sleeve 7 are telescopic annular sleeves. The annular sleeve is telescopic, the tightness of the fit between the sleeve body and the blade is enhanced, and the connection firmness of the positioning bolts is further improved.

Further, first

annular cover

6 and 7 one end of second annular cover all set up arch 8, set up the screw hole in the arch 8, threaded hole sets up adjusting bolt 9, adjusting bolt 9 one end sets up bulb universal joint 10, bulb universal joint 10 is located and keeps away from protruding 8 one end on first annular cover 6 and the second annular cover 7. The telescopic structure of the first annular sleeve and the second annular sleeve can be of a hoop type structure and a throat hoop type structure, a ball joint universal joint structure and a bolt are matched with each other, the adjusting convenience is improved, the static self-locking effect of the annular sleeve is good after adjustment, the attachment is firm, and the annular sleeve is not prone to loosening.

As optimization, the positioning bolts 4 on the fixed blade 1 and the first-stage telescopic blade 2 are multiple, and the plurality of positioning bolts 4 are distributed annularly. The annular distribution of positioning bolts enhances the firmness of blade fixation, so that the blade is stressed uniformly, and the interference of the positioning bolts on the rotation of the blade is reduced.

Claims

1. A telescopic aerogenerator blade, comprising a fixed blade (1), characterized in that: set up one-level flexible blade (2) in fixed blade (1), set up second grade flexible blade (3) in one-level flexible blade (2), fixed blade (1), one-level flexible blade (2) and second grade flexible blade (3) are narrow down wide terrace with edge form, one-level flexible blade (2) bottom surface length is good at fixed blade (1) top surface length, second grade flexible blade (3) bottom surface length is good at one-level flexible blade (2) top surface length, all set up positioning bolt (4) on fixed blade (1) and one-level flexible blade (2), set up unfilled corner (5) on positioning bolt (4).

2. A telescoping wind turbine blade according to claim 1, wherein: the fixed blade (1) is provided with a first annular sleeve (6) and a second annular sleeve (7), and the positioning bolts (4) are respectively positioned on the first annular sleeve (6) and the second annular sleeve (7).

3. A telescoping wind turbine blade according to claim 2, wherein: the first annular sleeve (6) and the second annular sleeve (7) are telescopic annular sleeves.

4. A telescoping wind turbine blade according to claim 3, wherein: first annular cover (6) and second annular cover (7) one end all set up arch (8), set up the screw hole in arch (8), threaded hole sets up adjusting bolt (9), ball universal joint (10) are set up to adjusting bolt (9) one end, ball universal joint (10) are located and keep away from protruding (8) one end on first annular cover (6) and second annular cover (7).

5. A telescoping wind turbine blade according to claim 1, wherein: positioning bolts (4) on fixed blade (1) and one-level flexible blade (2) are a plurality of, and are a plurality of positioning bolts (4) are the annular distribution.