JPS5916538Y2 - windmill with variable blades - Google Patents

Description

[Detailed explanation of the invention] This invention aims to reduce air resistance by laying down the blade horizontally in the phase in which the blade rotates toward the windward, and in the phase in which the blade rotates toward the windward and is energized by the wind force, the blade is erected. Regarding wind turbines equipped with variable blades that change the blade angle so as to receive the maximum wind pressure,
This windmill is characterized by rotating its blades in the horizontal direction.

Below, an embodiment of the present invention will be explained in detail with reference to the drawings. A short cylindrical boss portion 2 is fixed to the upper end of the driven shaft 1, and several blades 3 are attached.
The blade roots 3' of... are horizontally and rotatably attached to the boss part 2, and one end of the coil spring 4 is fixed to the multi-blade tR3' in the gap between the boss part 2 and the base of the blade 3. At the same time, a trochanter 5 is attached to the free end of each coil spring 4, or as shown in FIGS. 3 and 4, the base end of the leg rod 16 is fixed to the wing root 3', and the free end of the leg rod 6 is fixed. Attach trochanter 5 to the
1'4, the bearing ball 6, which is provided through the hole, is inserted into the driven shaft 1 and brought into contact with the lower surface of the boss portion 2.

An outer cylindrical body 11 having an inner cylindrical body 8 with a mounting plate 7 protruding from the bottom ε·15, rotatably covered over the driven shaft 1 by inserting bearings 9, 9, and integrally provided with a slope plate 10 on the upper surface. The bearing 9,
9 and sleeve 12 are inserted to rotatably cover the inner cylindrical body 8, and the bearing balls 6 and each trochanter 5 are rolled on the slope plate 10, or vertically parallel to the outside of the outer cylindrical body 11. A slope plate 10.10 is extended to form a cam groove 17,
The trochanter 5 attached to each leg rod 16 is slid into the cam groove 17.

In another embodiment, the slope plate may be a single plate, and the slope plate may be held between several pairs of upper and lower rollers.

In order to match the direction of the middle height of the slope plate 10h with the direction of wind blowing, a band fastening tool is attached to the base end of the mounting rod 14, which has a three-pronged wind direction plate 13 vertically installed at the tip, to the outer cylinder body 11. 15, and I in the figure is the wing 3.
is the phase when the blade is on the windward, II is the phase when the blade 3 is rotated 90 degrees toward the leeward, III is the phase when the blade is on the leeward, and the plate is the phase when the blade 3 is in the phase II
The phase shown is rotated by 90 degrees from I to windward.

Since the present invention is configured in this way, when the outer cylindrical body 11 integrated with the wind direction plate 13 rotates due to the wind force acting on the wind direction plate 13, the slope plate 10 or the cam groove 17 integrated with the outer cylindrical body 11 rotates.
The wind direction plate 13 also rotates to the position where the wind direction plate 13 is directed upwind, that is, the phase I.
In II, since the slope plate 10 or the cam groove 17 has a medium height, the trochanter 5 in contact with the slope plate 10 or the cam groove 17
The height is also medium height.

In other words, the coil spring 4 or leg rod 1 equipped with the trochanter 5
The free end of the coil spring 4 or the base end of the leg rod 16 is fixed to the blade root 3', so that the blade 3 is oriented in opposite directions in the windward phase I and the leeward phase III. In phase II, which has an inclination of approximately 45° and is perpendicular to the wind direction, the height of the slope plate 10 or cam groove 17 is highest, so the free end of the coil spring 4 or leg rod 16 becomes close to horizontal. The blade 3 is lifted up and rotated approximately vertically, and the height of the slope plate 10 or the cam groove 17 is the lowest in the phase disc facing the phase II, so that the free end of the coil spring 4 or the leg rod 16 is The wing 3 is rotated substantially horizontally by hanging down substantially vertically.

Therefore, in phase II, wing 3. The wind force acts most strongly on and urges the driven shaft 1, which is integrated with the boss portion 2 of the blade 3, to rotate toward the phase III side. does not impede rotation.

When the wind direction changes, the wind direction plate 13 moves and rotates the slope plate 10 or cam groove 17 that is integrated with the wind direction plate 13, so that the phases I, II, III and the plate are always kept at fixed positions with respect to the direction in which the wind blows. Therefore, the angle of inclination of the blades 3 with respect to the wind direction is always maintained constant.Furthermore, when the mounting plate 7 protruding from the lower part of the inner cylinder 8 is fixed in place, the blades 3... rotate in the horizontal direction, and the blades 3... By varying the angle, wind power can be captured most effectively, air resistance can be most effectively reduced, and driven shaft 1 can be rotated efficiently.

As described above, the present invention is a useful device with a robust and durable structure and reliable operation.

[Brief explanation of the drawing]

The drawings show an embodiment of the wind turbine of the present invention, in which Fig. 1 is a partially cutaway plan view, the left half of Fig. 2 is a front view, the right half is a vertical sectional view of the central part, and Fig. 3 is another embodiment. Partially cutaway plan view showing 4th
The left half of the figure is a front view of the same, and the right half is a longitudinal sectional view of the center. 1... Driven shaft, 2... Boss part, 3... Wing, 3'.
... Wing root, 4... Coil spring, 5... Trochanter, 6...
・Bearing ball, 8... Inner cylindrical body, 10... Slope plate,
DESCRIPTION OF SYMBOLS 11... Outer cylinder body, 13... Wind direction board, 16... Leg rod, 17... Cam groove.

Claims (1)

[Scope of utility model registration request] A boss part 2 is fixed to the upper end of the driven shaft 1, and several blades 3...
The blade roots 3' of . An outer cylindrical body 11 has a trochanter 5 attached to the free end of the cylindrical shaft 16, an inner cylindrical body 8 rotatably covers the driven shaft 1, and the upper surface is formed into a slope plate 10.
The slope plate 10 is rotatably placed over the inner cylinder 8 and the trochanter 5 attached to the coil spring 4 is rolled on the slope plate 10, or the slope plate 10 is extended vertically parallel to the outside of the outer cylinder 11. , 10, the trochanter 5 attached to the leg rod 16 is rolled, and the wind direction plate 13 is fixed to the outer cylinder 11, and the bearing ball is in contact with the boss part 2 and the slope plate 10. 6 into the driven shaft 1, and insert it onto the slope plate 10 or into the cam groove 17.
A wind turbine equipped with variable blades, characterized in that the blade angle of the blades 3 is varied by vertically changing the phase of a rotor 5 rolling therein.