Manufacturing method of split type composite propeller and product

Abstract

The invention discloses a manufacturing method of a split type composite propeller and a product, and the manufacturing method comprises 1) a propeller hub manufacturing step including 1-1) a propeller hub pre-forming step: namely laying prepreg sheets according to a predetermined method to obtain a propeller hub pre-formed body; and 1-2) a propeller hub forming step: namely putting the propellerhub pre-formed body into a propeller hub forming mold, and carrying out heating and pressurizing to obtain a propeller hub; 2) a paddle manufacturing step including 2-1) a paddle pre-forming step: namely paving prepreg sheets according to a predetermined method to obtain paddle pre-formed bodies; and 2-2) a paddle forming step: namely putting the paddle pre-formed bodies into a paddle forming mold, and carrying out heating and pressurizing to obtain paddles; and 3) a bonding step: namely, respectively gluing the faying surfaces of the paddles and the first concave part of the propeller hub, then butting the faying surfaces of the more than two paddles and the first concave part of the propeller hub one by one, then performing fixing, and finally performing baking to obtain the product. Themethod has the characteristics of convenience in manufacturing, high production efficiency and good connection stability.

Description

technical field [0001] The invention relates to a manufacturing method of a propeller, in particular to a manufacturing method and a product of a split composite material propeller. Background technique [0002] Propeller refers to a device that converts the rotational power of the engine into propulsion by rotating the blades in the air or water. There may be two or more blades connected to the hub, and the rear side of the blades is a helical surface or similar to A marine propeller with a helicoid. At present, propellers include conventional metal propellers and composite material propellers. Compared with conventional metal propellers, composite material propellers have the advantages of light weight, high efficiency, low vibration, seawater corrosion resistance and easy maintenance. [0003] In the prior art, the existing composite material propellers are generally of a combined structure, that is, the blades and the propeller hubs are prepared separately, and then ass...

AI Technical Summary

Problems solved by technology

The propeller blade formed after assembly has discontinuous fibers at the blade root, and the connection stability is poor

In addition, the composite material blade also adopts the co-curing molding process. When the shape of the composite material blade is irregular, there are disadvantages such as complicated preformed layering process, long manufacturing cycle and high cost, and poor product quality.

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