JPH04107487U - windmill structure - Google Patents

Abstract

(57) [Summary] [Name of the invention] Wind turbine structure (purpose) A wind turbine that automatically changes the angle of inclination of the propeller section 10 that receives wind pressure according to changes in wind speed, adjusts the received wind pressure to a standard, and keeps the rotation constant. prevent damage. (Structure) A rotatable propeller shaft 1 is connected to a flange 8 via an arm shaft 2 and a support rod 3 by strengthening the wind pressure that the propeller part receives.
However, when the wind pressure weakens, the springs 6 and 7 work to rotate the propeller shaft so as to return the propeller to its standard inclination angle. (Effect) The inclination angle of the propeller section was automatically controlled to the standard wind pressure, and the purpose was achieved.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This application automatically changes the inclination of the propeller according to the wind pressure, making the rotation as uniform as possible. It also relates to a simple structure for wind turbines that can easily withstand strong winds.

0002

[Conventional technology]

In particular, many large wind turbines that utilize advanced technology have been proposed. However, for general wind turbines, it is easy to automatically control and adjust the propeller inclination according to changes in wind pressure. The windmill has been designed so that the rotation of the windmill is as uniform as possible, and it can withstand strong winds easily. No simple structure is found.

0003

[Problem that the idea aims to solve]

Automatically changes the inclination of the propeller section according to changes in wind pressure that the propeller section of the wind turbine receives. The wind turbine has a simple structure that makes the rotation of the wind turbine as uniform as possible and that can withstand strong winds. It is to provide structure.

0004

[Means to solve the problem]

The present invention includes a rotatable propeller shaft 1, an arm shaft 2 directly connected to the propeller shaft, and the arm shaft A support rod 3 movably connected to the wind turbine, a central rotating shaft 4 of the wind turbine, and the propeller shaft and rotating shaft attached. flange 5 Upper spring 6, lower spring 7, support rod lower mounting flange 8, consists of a lower flange 9, a lower spring stopper 11, and is connected to the propeller shaft and the front. The rotation axis is provided in a right angle direction through the flange 5, and the arm axis and support rod are The support rod 3 and the flange 8 are also movably connected in parallel with the central rotation axis. and has an inclined plane of about 15 degrees with respect to the plane perpendicular to the direction of the rotation axis 4. The propeller shaft 1 has a propeller part 10 that has a wind pressure of about 3 m/sec or more. In a wind turbine where the rotating shaft 4 rotates, as the wind pressure increases, the propeller The force that changes the inclination of the arm axis 2 changes the inclination of the arm shaft 2, and the support rod 3 connected to it changes. The flange 9 is pressed through the lower spring stopper 11, and the flange Press the spring 7 interposed between the flange 9 and move the flange 9 up and down according to changes in wind pressure. , the pressing force of the flange 8 pressed by the upper spring and the pressing force of the flange 9 are Automatically adjusts the inclination of the propeller 10 to the appropriate position, making the wind pressure as uniform as possible The structure of the windmill ensures uniform rotation and safety against strong winds. In short, the present invention allows the propeller shaft 1 to be rotated on the flange 5 fixed to the rotating shaft. The propeller section 10 is provided perpendicularly to the rotational axis so as to prevent changes in the inclination angle of the propeller section 10. By utilizing the fact that the relationship between wind pressure and wind speed appears as the rotational force of the propeller shaft, By combining rings and other means, the tilt angle of the propeller part can be automatically controlled. By keeping the wind pressure constant, the rotation speed can be kept constant and it can withstand strong winds. It has strengthened its resistance to Furthermore, multiple propeller shafts can be provided. However, it is preferable to provide 2 to 4 pieces at equal intervals around the flange 5.

[0005]

【Example】

As an example, two propeller shafts 1 are arranged symmetrically at right angles to the rotation axis 4 of the wind turbine. An example of the structure of the wind turbine of the present invention will be given below. Figure 1 is a front view viewed from the direction of the rotation axis. 2 is a side view from the parallel plane of the propeller shaft, and Figure 3 is a side view from the right angle plane to the propeller shaft. , FIGS. 2 and 3 show the cases where the inclination angle of the propeller 10 is a specified angle, respectively. Figure 4 is a side view showing how Figure 3 changes in response to changes in wind pressure. Figures 5 and 5 are side views showing the entire structure of the wind turbine of the present invention, taken from a plane parallel to the rotation axis. .

[0006]

[Effect of the idea]

With a simple structure, the inclination angle of the propeller section 10 can be automatically controlled according to the wind pressure depending on the wind speed. This not only allows for the specified rotation, but also prevents damage from strong winds. Ta.

[Brief explanation of drawings]

Figure 1 is a front view as seen from the direction of the rotating shaft 4, Figure 2 is a side view from a plane parallel to the propeller axis in the standard state, Figure 3 is a side view from a plane perpendicular to the standard propeller axis, and Figure 4 is a side view from a plane perpendicular to the standard propeller axis. FIG. 3 is a side view showing a state in which FIG. 3 changes in response to a change in wind pressure; FIG. 5 is a side view of the plane parallel to the rotation axis showing the entire structure of the wind turbine of the present invention.

[Explanation of symbols]

1... Propeller shaft 2... Arm shaft directly connected to the propeller shaft 3... Support rod 4... Central rotating shaft of the wind turbine 5... Flange 6... Upper spring 7... Lower spring 8... Support rod lower mounting flange 9... Lower flange 10... Propeller section 11
...lower spring stopper

Claims (1)

[Scope of utility model registration request] 1. A rotatable propeller shaft 1, an arm shaft 2 directly connected to the propeller shaft, a support rod 3 movably connected to the arm shaft, a central rotating shaft 4 of the wind turbine, and a flange 5 for attaching the propeller shaft and the rotating shaft. , an upper spring 6, a lower spring 7, a support rod lower mounting flange 8, a lower flange 9, and a lower spring stopper 11. The arm shaft and the support rod are movably connected in parallel to the central rotation axis,
The support rod 3 and the flange 8 are also movably connected, and the propeller part 10 of the propeller shaft 1 is inclined at 15 degrees with respect to the vertical plane to the direction of the rotating shaft 4, and a wind pressure of about 3 m/sec or more is applied to the propeller part. In a windmill whose rotating shaft rotates in response to
As the wind pressure exceeds 3 m/sec and becomes stronger, a force that changes the inclination of the propeller part acts, and the inclination of the arm axis 2 changes,
The lower flange 9 is moved through the support rod 3 connected thereto, and the spring 7, which is fixed by the lower spring stopper 11 and interposed between the flanges 9, is moved, and the flange 9 is moved according to changes in wind pressure, and the upper spring The propeller 10 is maintained at a position that matches the pressing force of the flange 8 and the flange 9, and the inclination of the propeller 10 is automatically adjusted to make the received wind pressure as uniform as possible to ensure uniform rotation of the wind turbine and safety. The structure of a windmill.