How to make a wind generator from a grinder gearbox and other junk

Free electricity is the dream of many, but to get it, you need to spend a lot on equipment. If you are not ready for such an investment, you can make a wind generator with your own hands literally from trash. Of course, it will not provide all needs with electricity, but it will completely allow powering low-power consumers.

Materials:

• Sheet steel 2 mm;
• profile pipes;
• shaft 10-15 mm;
• bearings with the diameter of the inner race for the shaft – 2 pcs.;
• grinder gearbox;
• roller chain;
• large and small drive sprockets;
• plastic sewer pipe;
• DC motor 12V, optimally stepper with low resistance on the windings - http://alii.pub/5qa7qp

Wind generator manufacturing process

Assembly should begin by making the screw. To do this, a disk is cut out of sheet steel. 3 profile pipes are welded onto it for attaching the blades. An axle is welded into the center. It must be set strictly perpendicular.

A section of profile pipe is used as the body of the wind generator. In the center, a gearbox from an angle grinder with an anchor is screwed to it.

The rotor shaft must be connected to the propeller shaft.To do this, 2 bearings are installed on the latter, inserted into a section of pipe. The shafts are coaxially welded together. The tube itself with bearings is welded to the body.

A large sprocket is clamped onto the grinder gear spindle.

Next, the generator itself is attached to the body made of a profile pipe. It can be used as a DC motor, preferably a stepper motor with low winding resistance, since it produces good current at low speeds. A smaller sprocket is installed on the generator shaft. Then a roller chain is stretched between the stars.

Blades cut from a plastic pipe are screwed onto the base of the propeller. A tail, also cut out of plastic, is installed on the edge of the body. The wind generator is then secured to a high pole.

In strong winds, the propeller spins the generator through the gearbox to high speeds. As a result, constant voltage is removed from its contacts. With the help of the controller, it can be used to charge the car battery. This is enough to power 12 V electrical appliances. You can also use an inverter and convert DC voltage to 220 V AC.

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