Protective wind power generator model for physical experiment

Abstract

The invention discloses a protective wind power generator model for a physical experiment. The protective wind power generator model comprises a shell, wherein a first rotating shaft is transversely inserted into the side wall of the shell, fan blades are fixed on the outer ring of the first rotating shaft on the outer side of the shell, a protective cover is fixed on the outer ring of the fan blade on the side wall of the shell, an electric fan is arranged beside the fan blades on the outer side of the shell, a first check ring is sleeved on the first rotating shaft in the shell, the side wall of the first check ring is fixed on the inner wall of the shell, a first supporting seat is fixed below the first rotating shaft on the inner wall of the shell, a second rotating shaft is verticallyarranged on the first supporting seat, the first rotating shaft and the second rotating shaft are in transmission through a bevel gear structure, and a connecting rod is transversely fixed on the inner wall of the shell. According to the invention, the transmission ratio of the fan blades to the rotating shaft of the generator can be flexibly adjusted, and the model is simple in structure, enables students to know the relation between the rotating speed of the wind power generation blades and the output voltage of the generator visually, and can prevent the fan blades from hurting the hands of an operator due to the arrangement of the protective cover on the shell.

Description

technical field [0001] The invention belongs to the field of wind power generator models, in particular to a protective wind power generator model for physical experiments. Background technique [0002] When explaining wind power generation in physics class, many teachers will combine the model of wind power generator to explain to students, so that students can understand the knowledge point more thoroughly. Since there is not always wind, so many times, electric fans will be used to drive wind power generation The blades of the wind turbine rotate, and the general electric fans on the market only have three gears, and the difference between the three gears is not big. In order to understand the relationship between the wind power blade speed and the generator output voltage more intuitively, many power generation models A small gearbox is added, but the structure of the small gearboxes on the market is complicated, and there are only a few adjustable transmission ratios, s...

AI Technical Summary

Problems solved by technology

[0002] When explaining wind power generation in physics class, many teachers will combine the model of wind power generator to explain to students, so that students can understand the knowledge point more thoroughly. Since there is not always wind, so many times, electric fans will be used to drive wind power generation The blades of the wind turbine rotate, and the general electric fans on the market only have three gears, and the difference between the three gears is not big. In order to understand the relationship between the wind power blade speed and the generator output voltage more intuitively, many power generation models Install a small gearbox. However, the structure of small gearboxes on the market is complicated, and there are only a few adjustable transmission ratios, so it is impossible to realize continuously variable transmission.

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