Aluminium one-step forming cross-flow and eddy-current wind wheel and processing technology thereof

Abstract

The invention discloses a processing technology of an aluminium one-step forming cross-flow and eddy-current wind wheel. The processing technology comprises the steps of extruding, straightening, saw-cutting, turning, riveting and oxidizing and coloring the finished wind wheel. Through the technical scheme, as one-step forming is adopted, the process is simple, the production efficiency is improved, manpower and manufacturing cost are reduced, dynamic balance is not required, procedures are reduced, the yield is improved and the product quality is guaranteed; as combined structures are adopted, the tensile strength is improved, and the probability of damage is low; wind volume can be effectively improved, noise and power consumption are reduced, the product length and diameter are not restricted, and no spacers for supporting is not needed in the middle; therefore, the airflow is more smooth, the use efficiency is greatly improved, the energy consumption is lowered and the service life is prolonged.

Description

technical field [0001] The invention relates to a cross-flow wind wheel, a vortex-type wind wheel and a processing technology thereof, in particular to an aluminum-made cross-flow wind wheel, a vortex-type wind wheel and a one-time forming process thereof. Background technique [0002] At present, the traditional cross-flow wind rotors and vortex wind rotors (such as figure 1 As shown), the process adopted is completed by the following steps: 1. Slitting the aluminum strip of the blade; 2. Stamping or rolling the slit aluminum strip to make a blade of a specified length; 3. Carrying out the spacer material Slitting; 4. Stamping the cut spacer material to make a spacer; 5. Manually piercing the blades one by one on the spacer; 6. Then riveting the assembled wind wheel through a special rolling machine 7. Use the balancing machine to adjust the balance of the product; 8. Oxidize the finished product. [0003] The above-mentioned process has the following disadvantages: 1. It...

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Problems solved by technology

[0003] The above-mentioned process has the following disadvantages: 1. It is assembled and rolled by manually piercing the blades one by one on the circular spacer, and each additional piece of spacer needs to be riveted once. According to the size of the wind wheel, each person The output is only 50-200PCS per day, so not only is the process complicated, but also requires a lot of manpower, the production cost is increased, and the production volume is low; 2. The blades are riveted one by one, with low tensile strength and easy to be damaged; 3. Because the concentricity of each product will be different after riveting and rolling, each product must be dynamically balanced to adjust the balance. The consistency of product quality is difficult to control and the production efficiency is low; 4. The traditional wind wheel spacer The round hole in the center of the sheet cannot be larger than 20% of the area of ​​the entire sheet. If it is larger, the sheet will be deformed when the sheet is riveted, which will cause the entire wind wheel to be scrapped; Several spacers are used to fix the blades. Every time the length of the wind rotor increases by about 80mm, an additional spacer must be added. Every time a spacer is added, an additional riveting process must be added. The longer the length, the straightness and deformation rate of the wind wheel will not be very good. This will lead to a decrease in the qualified rate of finished products, an increase in cost, and a decrease in production efficiency. Since the round hole in the center of the traditional wind wheel spacer is small, adding spacers in the middle will divide the wind wheel into many sections. The air volume will decrease under the condition (such as figure 2 shown); at the same time, there are still disadvantages such as low air volume, high noise, high power consumption, especially the length and diameter of the product are limited.

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