CN211662438U

CN211662438U - Mould for manufacturing blade of wind turbine

Info

Publication number: CN211662438U
Application number: CN201922275396.1U
Authority: CN
Inventors: 王青
Original assignee: Guruite Mould Taicang Co ltd
Current assignee: Guruite Mould Taicang Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-10-13
Anticipated expiration: 2029-12-18

Abstract

The utility model discloses a mould of wind turbine preparation blade, it includes: the fixing base, install the fixed beam on the fixing base, install the upset roof beam on the fixed beam through the upset arm to and be located the box composite shear force roof beam on the fixing base, this mould has satisfied most factory buildings highly inadequately, but want the requirement of the customer of production large-scale wind-powered electricity generation blade, make the production and the preparation of the large-scale blade that the customer that the factory building height is not high has the chance to participate in equally, promote market competition.

Description

Mould for manufacturing blade of wind turbine

Technical Field

The utility model relates to a wind turbine blade mould field specifically is a mould of wind turbine preparation blade.

Background

Wind energy is increasingly gaining attention as a clean renewable energy source in all countries of the world. The energy storage capacity is huge, the global wind energy is about 2.74 multiplied by 109MW, and the available wind energy is 2 multiplied by 107MW which is 10 times larger than the total amount of water energy which can be developed and utilized on the earth. Wind is utilized by people for a long time, mainly water pumping, surface grinding and the like are realized through windmills, people are interested in how to utilize wind to generate electricity at present, and the principle of wind power generation is that wind power is utilized to drive blades of the windmills to rotate, and then the rotating speed is increased through a speed increaser to promote a generator to generate electricity. According to the current wind power generation technology, the power generation can be started at a breeze speed of about three meters per second. Wind power generation is forming a hot tide in the world because it has no fuel problems and does not produce radiation or air pollution.

With the rapid development of the state on clean energy, the wind power industry is rapidly developed, the megawatt level of the wind power blade is larger and larger, the length of the wind power blade is from forty meters to eighty meters, the wind power blade is lengthened day by day, the length of the die is lengthened, the web plate of the wind power blade is larger and longer, the operation height of the die for producing the blade by the traditional structure process is higher and higher, and the limitation on the height of a factory building is more and more obvious. Compared with customers with insufficient plant height, the production and manufacture of larger wind power blades cannot be participated due to the limitation of the plant height, and the market competitiveness is reduced. The blade mould matched with the traditional wind turbine blade manufacturing structure process cannot meet the customer requirements of insufficient height of the part of the factory building.

The turnover beam is a very critical structure in the mainstream wind power blade mould, the number of the turnover beams in the current mainstream wind power blade mould is about twelve, six upper beams are arranged in the upper mould, and six lower beams are arranged in the lower mould. So many upset roof beams actually have had many drawbacks in wind-powered electricity generation mould, and along with wind power generation's power promotes gradually, the continuous grow of wind-powered electricity generation mould size, as shown in fig. 1, the upset roof beam specification in the mould also can be bigger and bigger, and quantity also can be more and more, and these drawbacks can be more and more prominent, and the analysis is as follows:

first, connection mode

The connected mode of upset roof beam in present mainstream wind-powered electricity generation blade mould rather than the mould all is direct welded connection basically, the die sinking of lower mould on the upset roof beam need guarantee wind-powered electricity generation mould is with the compound die, so the upset roof beam in the mould and the upset roof beam position degree in the lower mould need guarantee within 1 to 2 millimeters, but because wind-powered electricity generation mould length is super sixty meters, the width all will exceed five to six meters with high, guarantee by the welding, the degree of difficulty is very big, the later stage is because the precision problem can lead to the upset arm abnormal sound, the shake during the mould upset, compound die dislocation scheduling problem.

Second, strength aspect

The turnover beam is a main stressed part, the steel type with high yield strength can be selected for the material selection of the turnover beam, the steel frame part of the die in welded connection with the turnover beam is mostly made of Q345D steel, even the steel of Q235B is used by many manufacturers, and after the die is opened and closed for many times, the welded parts can crack, which is very dangerous.

Third, cost aspect

The price of each set of wind power mold is very expensive, wherein the manufacturing, installing and welding costs of the turnover beam account for a great proportion, due to rapid development of the wind power industry, the service life of one set of wind power mold is averagely 1-2 years, a few molds can be used for 3-4 years, and if the turnover beam can be repeatedly used, the manufacturing cost of the wind power mold can be greatly reduced.

Fourth, installation state

The existing mainstream wind power mold is required to be installed in a mold closing state of the wind power mold when the turning beam is installed, because the fact that the turning beam is parallel to each other in the same plane is guaranteed, and the mold closing of the wind power mold is very difficult and has no precision before the turning beam is not installed.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to solve the not enough of prior art, the utility model provides a mould of wind turbine preparation blade satisfies most factory buildings highly not enough, but wants the requirement of the customer of producing large-scale wind-powered electricity generation blade for the production and the preparation of the large-scale blade that the customer that the factory building height is not high has the chance to participate in equally, promote market competition.

The technical scheme is as follows: in order to achieve the above object, the utility model provides a wind turbine makes mould of blade, it includes: the device comprises a fixed seat, a fixed beam arranged on the fixed seat, an overturning beam arranged on the fixed beam through an overturning arm, and a box-type composite shear beam positioned on the fixed seat;

the fixed beam include left fixed beam and right fixed beam, the upset roof beam includes left upset roof beam and right upset roof beam, the position of left fixed beam and right fixed beam relative, the position of left upset roof beam and right upset roof beam is relative.

As a further preferred feature of the present invention, the fixing base is fixed to the ground by means of an expansion bolt or a chemical anchor.

As a further preferred aspect of the present invention, the fixing base is provided with a lower die.

As a further preferred aspect of the present invention, the bottom of the box-type composite shear beam is fixed to the lower mold.

As a further preferred aspect of the present invention, the box-type composite shear beam is fixed to the lower mold by means of bonding.

As the utility model discloses a further preferred, last mould after the segmentation is fixed with left upset roof beam and right upset roof beam respectively.

As a further preference of the utility model, the top of box-type composite shear beam be equipped with the curved surface.

As a further preferred aspect of the present invention, the curved surface has a shape adapted to the shape of the upper mold a and the upper mold B at the segment.

Has the advantages that: a mould of wind turbine preparation blade, compare with prior art, have following advantage:

1. the operation height of the die is reduced by 10-20% compared with the operation height of the traditional die by arranging the two turnover beams;

2. the load of the die hinge clamping mechanism is reduced by 30-40%.

Drawings

FIG. 1 is a schematic diagram of the working state of the prior art;

fig. 2 is a schematic view of the working state of the present invention;

FIG. 3 is a schematic structural view of the present invention in the open state;

FIG. 4 is a schematic structural view of the present invention when the half molds are closed;

FIG. 5 is a schematic structural view of the present invention during mold closing;

FIG. 6 is a schematic view of the blade prior to bonding;

fig. 7 is a schematic view of the bonded blade structure.

Detailed Description

The invention will be further elucidated with reference to the drawings and the specific embodiments.

As shown in fig. 2, the present invention provides a wind turbine blade manufacturing mold, which includes: the device comprises a fixed seat 1, a left fixed beam 21, a right fixed beam 22, a left overturning beam 31, a right overturning beam 32, an overturning arm 4, a box-type composite shear beam 5, a lower die 6, an upper die A71 and an upper die B72.

The left fixed beam 21 is installed on the left side of the fixed seat 1, the right fixed beam 22 is installed on the right side of the fixed seat 1, the left fixed beam 21 is opposite to the right fixed beam 22 in position, the left overturning beam 31 is opposite to the right overturning beam 32 in position, the left overturning beam 31 is installed on the left fixed beam 21 through the overturning arm 4, the right overturning beam 32 is installed on the right fixed beam 22 through the overturning arm 4, the fixed seat 1 is fixed with the ground through an expansion bolt or a chemical anchor bolt, fixing is achieved, a lower die 6 is arranged on the fixed seat 1, the bottom of the box-type composite shear beam 5 is fixed on the lower die 6 in a bonding mode, a curved surface is arranged at the top of the box-type composite shear beam 6, and the shape of the curved surface is matched with the shapes of the sections.

Examples

Step one, a lower die 6 is arranged on a fixed seat 1, an upper die A71 is fixed on a left overturning beam 31, and an upper die B72 is fixed on a right overturning beam 32;

step two, verifying the positions of the fixed beam and the turnover beam, so that the left fixed beam 21 and the right fixed beam 22 are opposite, and the left turnover beam 31 and the right turnover beam 32 are opposite, as shown in fig. 3;

step three, the electric control unit controls the hydraulic cylinder to work, so that the overturning arm 4 drives the left overturning beam 31 to rotate rightwards until the bottom of the upper die A71 is attached to the top of the box-type composite shear beam 6, as shown in FIG. 4;

fourthly, the electric control unit controls the hydraulic cylinder to work, so that the turnover arm 4 drives the right turnover beam 32 to rotate leftwards until the bottom of the upper die A71 is attached to the top of the box-type composite shear beam 6, as shown in FIG. 5;

step five, filling the gap 8 between the upper die A71, the upper die B72 and the lower die 6 by using an adhesive to finish the production of the blade, as shown in FIGS. 6 and 7;

and sixthly, detaching the upper die A7 from the left overturning beam 31, detaching the upper die B72 from the right overturning beam 32, rotating the left overturning beam 31 to the left, rotating the right overturning beam 32 to the right, hoisting the produced blade away by a crane, repeating the work, and reinstalling the die to produce the blade again.

The above embodiments are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All changes and modifications that come within the spirit of the invention are desired to be protected.

Claims

1. A mould for manufacturing a blade for a wind turbine, characterized by: it includes: the device comprises a fixed seat, a fixed beam arranged on the fixed seat, an overturning beam arranged on the fixed beam through an overturning arm, and a box-type composite shear beam positioned on the fixed seat;

2. The wind turbine blade mold of claim 1, wherein: the fixing seat is fixed with the ground through an expansion bolt or a chemical anchor bolt.

3. The wind turbine blade mold of claim 1, wherein: the fixing seat is provided with a lower die.

4. A mould for manufacturing a blade for a wind turbine according to claim 3, wherein: the bottom of the box-type composite shear beam is fixed on the lower die.

5. The wind turbine blade mold of claim 4, wherein: the box-type composite shear beam is fixed on the lower die in a bonding mode.

6. The wind turbine blade mold of claim 1, wherein: the segmented upper die is respectively fixed with the left overturning beam and the right overturning beam.

7. The wind turbine blade mold of claim 1, wherein: the top of the box-type composite shear beam is provided with a curved surface.

8. The wind turbine blade mold of claim 7, wherein: the shape of the curved surface is matched with the shapes of the sections of the upper die A and the upper die B.