wind turbine model. Building a wind turbine and assembling a wind turbine. Encyclopedia of radio electronics and electrical engineering
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Building a wind turbine
The wind wheel consists of three plywood blades located at an angle of 120° to each other. The general view of the wind turbine is shown in Figure 1, and its details are shown in Figure 5.
Rice. 1. General view of the wind turbine model
Fig.5. The central part of the wind turbine
For shaft 7, cut out a round stick with a diameter of 4 cm and a length of 75 cm. At its front end, fix the holder for the rods for the blades of the wind wheel. The holder consists of two plywood triangles 27 with truncated corners. Between the triangles, rods 28 of bars with a section of 2x2 cm and a length of 150 cm are strengthened with nails. The bevel at the base of the rod forms an angle of 43-45° with the side of the rod, which gradually decreases to 15°.
The plywood blades are 10 cm wide at the base and 8 cm wide at the end.
Fasten the wind wheel shaft 7 in the holder by means of bars 29. The same bars can be placed on the front side of the holder for strength.
In the place where the shaft is covered by the head bearing, it must be protected from abrasion with a tin tube 30.
Drive a large nail without a head into the end of the free end of the shaft so that it protrudes from the shaft by 6 cm. With this nail, the shaft is fixed in a tin bearing 31 on the vertical axis of the head (see Figure 4). In this place it is useful to lay tin washers.
Fig.4. wind turbine head
To prevent the shaft with the wind wheel from popping out of the head bearings, when assembling, put a plywood washer on it and drive two nails behind the washer. This will prevent the shaft from moving forward.
Wind turbine assembly
Assemble the wind turbine model while the tower is on the ground. Copiously lubricate all rubbing places with grease or technical petroleum jelly. Insert the head axis into the hole on the top platform of the tower and only after that raise the tower with the wind turbine to a vertical position.
The tower must be well strengthened on the ground. Therefore, at the place of its installation, drive pegs into the ground and firmly tie the base of the tower to them.
If you paint the wind turbine with oil paint, it will be more beautiful and more durable.
Author: A.Stakhursky
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