Wind power blade second bonding angle mold and preparation method thereof

Abstract

The invention discloses a wind power blade second bonding angle mold and a preparation method thereof. The wind power blade second bonding angle mold comprises a steel frame, shaping plates, heating pipes and a panel, the top of the steel frame is connected with a plurality of shaping plates through bolts at intervals, heating pipe grooves are formed in portion which is close to the upper surfaceof each shaping plate at intervals, the heating pipes penetrate through the heating pipe grooves of each shaping plate; the panel is composed of a plurality of iron plates, the iron plates are weldedto the upper surfaces of the shaping plates in a transition mode and welded to the upper surfaces of the shaping plates, two triangular flanges are connected to the upper surface of the panel throughthe bolts; and aluminum powders are pasted between a gap formed by every two adjacent shaping plates and the panel, and the heating pipes are located in the aluminum powder. According to the wind power blade second bonding angle mold and the preparation method thereof, the second bonding angle mold is machined into the steel mold, machining of the steel mold takes 20 days, machining of a glass fiber reinforced plastic mold takes 50 days, compared with previous machining of the glass fiber reinforced plastic mold, the mold preparation period is greatly shortened, and the working efficiency is greatly improved.

Description

technical field [0001] The invention relates to the field of manufacturing wind power blades, in particular to a mold for the second bonding angle of wind power blades and a preparation method thereof. Background technique [0002] With the country's strong support for the clean energy industry, the technology of wind power generation has developed rapidly. As an important working component in the process of wind power generation, wind power blades are more and more important to the design, manufacture and production of their components; wind power blades It usually consists of three parts: skin, beam, and web. The web plays a supporting role in the inner cavity of the blade and carries the main load of the blade during motion. However, as the size of the blade becomes wider and longer, the single The web cannot meet the supporting function of the blade. At the trailing edge of the blade, a set of second bonding angles will be added, and together with the web, it will play a...

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Problems solved by technology

[0002] With the country's strong support for the clean energy industry, the technology of wind power generation has developed rapidly. As an important working component in the process of wind power generation, wind power blades are more and more important to the design, manufacture and production of their components; wind power blades It usually consists of three parts: skin, beam, and web. The web plays a supporting role in the inner cavity of the blade and carries the main load of the blade during motion. However, as the size of the blade becomes wider and longer, the single The web cannot meet the supporting function of the blade. At the trailing edge of the blade, a set of second bonding angle will be added, and together with the web, it will play a supporting role in the inner cavity of the blade and carry the blade motion load.

The forming of the second bonding angle needs to be produced by the second bonding angle mold. Due to the shape of the blade, the second bonding angle is mostly a curved surface shape. In the prior art, the second bonding angle mold is mainly a glass fiber reinforced plastic mold; The second bonding corner mold generally needs to make the master mold of the second bonding corner mold first, and then the second bonding corner mold can be made, which has the disadvantages of long production cycle, expensive processing cost and unstable heating system. At the same time, the model sub The size switching between models caused serious damage to the second bonding angle mold of FRP, and it was impossible to achieve frequent model switching. Therefore, it was gradually replaced by metal molds, but it is difficult for metal second bonding angle molds to produce more complex curved surfaces. , if the complex surface is processed by a machining center, the processing cost is very expensive. Therefore, it is necessary to develop a steel mold manufacturing method that uses a small cost to solve the complex surface, shorten the mold processing cycle, improve the switching efficiency, and reduce due to model switching. Damage to the mold

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