JPH0456693A - Rotary vane control mechanism - Google Patents

Abstract

PURPOSE:To heighten the integrated performance of a sailing device formed utilizing wind force by separating control mechanism for controlling a rotary vane within the horizontal face in the case of tail wind and head wind in the advance-possible range from reversing mechanism for reversing the rotary vane shaft within the vertical face at the tacking time in advance-impossible head wind. CONSTITUTION:In the case of tail wind, the rotary shaft 27 of a windmill faces the direction of a bow. Air force applied to the rotary shaft 27 at this time works in such a way as to rotate a first movable frame 21 and a second movable frame 25 counterclockwise around a horizontal shaft 14, and a contact point between a guide post 15 and a cam 23 supports this state. In the case of head wind, the first movable frame 21 is rotated by approximately 90 deg. clockwise around the horizontal shaft 14 and the second movable frame 25 is also rotated by 90 deg., so that the rotary shaft 27 faces upward and a hub 26 is rotated in the horizontal plane to reduce the resistance of head wind to a minimum. This state is supported by the contact between a bent part 22 and a guide cam 16.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a control mechanism for a rotor in a wind propulsion device using a rotor.

It is mainly used for ships, and is particularly used for wind propulsion devices that utilize rotating wind turbines and have good maneuverability and many other excellent features.

(b) Conventional technology Conventionally, there have been four types of propulsion devices that utilize natural wind power1:

■ Cloth sails that have been used for general ships ■ Semi-metallic hard sails with a strong frame controlled by a computer ■ The rotational force of a windmill is transmitted to a screw or wheel using gears, etc. Driving method - A method in which the direction of the rotation axis of the rotor blade is controlled according to the wind direction by a special link mechanism, so that the lift force acting on the rotor blade has a propulsion direction component (Japanese Patent Application No. 56-9147, No. 56-9147) 47517, 6O-178361).

(c) Problems to be solved by the invention Among the conventional technologies, the problem of operability in the first technology and the problem of high cost in the second technology have been significantly improved in the fourth technology. . Therefore, the future challenge for the fourth technology is to improve its performance.

In order to improve performance, we have improved the link mechanism that controls the direction of the rotor's axis according to the wind direction, making it possible to accurately control the direction of the rotor's axis, especially when the angle between the headwind direction and the direction of travel is small. It is necessary to define

(d) Means for Solving the Problems In order to solve the above problems, the present invention provides a base frame with:
The first cam is equipped with a horizontal axis perpendicular to the direction of travel, a front guide, and a curved rear guide cam, and is rotatable back and forth around the horizontal axis.
A movable frame is provided, and a second movable frame that rotates around an axis perpendicular to the horizontal axis and a stopper that determines a rotation range of the second movable frame are attached to the first movable frame. The second movable frame has a bent part and an arc-shaped cam near the center, and a windmill rotation bearing near the tip, and the windmill is attached to the rotation bearing. with the first movable frame in the front position, the cam of the second movable frame engages with the front guide, and the bent portion abuts the stopper at a predetermined maximum rotational position of the second movable frame; The present invention provides a rotary blade control mechanism characterized in that the bent portion engages with the rear guide cam in the retracted state.

(f) Example The following will explain the embodiments shown in the drawings.

FIG. 1 is a side view showing the basic structure of a wind propulsion device in which the present invention is used, and FIG. 2 is a top view thereof.

In FIGS. 1 and 2, 1 is a hull, 2 is a mast, 3 is a center board, 4 is a rudder, 5 is a link mechanism, 6 is a rotating shaft, and 7 is a windmill.

In FIG. 1, when the wind W1 is from the rear of the ship, a so-called tailwind, the rotating shaft 6 points toward the bow of the ship, and the wind turbine 7 rotates due to the force of the wind and generates propulsive force using the lift generated in its rotor blades. can occur and move forward.

Also, when the wind is a headwind like W2,
Due to the action of the link mechanism 5, the rotating surface of the wind turbine 7 becomes horizontal as shown by the chain line, and the backward drag force caused by the wind is minimized, thereby preventing backward movement.

Further, as shown in Fig. 2, in the case of wind W3 blowing at an angle α from the bow, the rotation shaft 6 moves at an angle β with respect to the axis Y, which is perpendicular to the axis X in the longitudinal direction of the hull, due to the action of the link mechanism 5. None.If the wind W3 blows at the windmill 7 at an angle of α-β and the angle between the aerodynamic force F generated on the windmill 7 and the Y axis is γ, then FXsinγ becomes the propulsive force.

Wind propulsion devices propel according to the principles described above.

Next, FIGS. 3 and 4 are side views showing the detailed structure of the link mechanism of the present invention, and FIG. 5 is a top view thereof.

In FIG. 3, FIG. 4, and FIG. 5, the base frame 11
The bearing provided on the ball 12 has a horizontal shaft 14 rotatably fitted in the portion 13, a guide post 15 facing upward, and a curved guide cam 16.

Fitted onto the horizontal shaft 14 is a first movable frame 21 which is rotatable in the front-rear direction and has a stopper mechanism consisting of a bearing 18 in a direction perpendicular to the horizontal shaft 14 and an adjustment bolt 20 provided on the tongue-shaped member 19. A second movable frame 25 is provided which fits into the bearing 18 and has a bent portion 22 and an arcuate cam 23 at the center and a rotary bearing 24 at the tip. The cam 23 and the guide post 15 are engaged, and the bent portion 22 and the guide cam 1 are engaged with each other.
6, and a rotating shaft 27 provided on a hub 26 of a wind turbine (not shown) is rotatably fitted into the rotating bearing 24.

The operation of the link mechanism configured as described above will be explained.

First, in the case of a tailwind, as described in FIGS. 1 and 2, the rotation axis 27 of the wind turbine is directed toward the bow.
The state shown in FIG. 3 is reached.

At this time, the aerodynamic force applied to the rotating shaft 27 causes the first movable frame 21 and the second movable frame 25 to move around the horizontal axis 14.
The guide post 1 works as if it were rotated counterclockwise.
This will be supported at the contact point between 5 and the cam 23.

Next, in the case of wind from the front, as shown in Figure 4,
The first movable frame 21 rotates approximately 90° clockwise around the horizontal axis 14, and the second movable frame 25 also rotates 90'.
As it rotates, the rotating shaft 27 faces upward, and the hub 26 rotates on a horizontal plane, resulting in a state where wind resistance from the front is minimized.

This state is supported by the contact between the bending portion 22 and the guide cam 16.

The shape of the guide cam 16 is designed to smoothly transition from the state in which the rotation M27 is directed to the side as shown in FIG. 5 to the state in which the rotation shaft 27 is directed upward as shown in FIG. It is something. In addition, when the wind blows diagonally from the front as shown in FIG.
The side surface of the bending portion 22 comes into contact with the tip of the bending portion 22 and stops. Also,
Depending on the shape of the cam 23 that contacts the guide post 15, the rotational position of the first movable frame 210 in the front-rear direction, which rotates around the horizontal axis 14, changes slightly.

This change is made so that the rotating shaft 27 is rotated around the bearing 8 by an optimum angle depending on the direction of the wind, so that the propulsive force is always maximized.

In other words, when the wind direction is in the range of 180° to 135° from the bow, that is, 06° to 45° from the stern, the direction of the rotating shaft 27 is always facing the bow, regardless of the wind direction, which causes the hull 1 to roll. However, in order to achieve this, the center of the cam 23 has a slight recess 23-1.
is formed. This recess 23-1 is the guide post 15.
Due to the aerodynamic force caused by the wind, the rotating shaft 27 stably maintains this position despite slight changes in the direction of the wind.

Next, in the range 135' to 60" from the bow, cam 2
3 has an arc shape, the rotating shaft 27 rotates to an angle where the direction of the aerodynamic force F generated on the windmill by the wind and the magnitude of the moment M are balanced. This angle varies depending on the shape of the wind turbine, but can be arbitrarily set by changing the shape of the arc of the cam 23 according to its characteristics.

In addition, when the wind direction is in the range of 60" to 256", the rotation axis 2
7 is rotated almost to its maximum extent so that the adjusting bolt 20 is brought into contact with the bent portion 22. The maximum rotation angle at this time needs to be set according to the characteristics of the wind turbine and the hull 1, and the setting of this angle can be adjusted by the screwing amount of the bolt 20.

Further, if the wind direction is 25'' or less, the state shown in FIG. 5 shifts to the state shown in FIG. 4.

At this time, the rotating shaft 27, which is turned to the side as much as possible, rotates backward around the horizontal shaft 14 together with the second movable frame 21, and the bent portion 22 comes into contact with the guide cam 16.

Further, as the second movable frame 21 rotates backward, the rotating shaft 27 gradually points upward and smoothly transitions to the state shown in FIG. 4.

As is clear from the above explanation, the link mechanism can finely set the direction of the rotating shaft 27 according to the wind direction from each direction in accordance with the characteristics of the wind turbine and the hull 1, so the maximum characteristics can be achieved in all conditions. It can be pulled out.

(g) Functions and Effects As is clear from the above explanation, there is a control mechanism in the horizontal plane of the rotor blade for headwinds within the range that allows forward movement from a tailwind, and in the vertical plane of the axis of the rotor blade when tacking in a headwind where forward movement is not possible. It is now possible to separate the reversing mechanism at the front and accurately adjust the maximum deflection angle of the rotor blade axis in response to headwinds that allow forward movement, making it possible to maximize the turning angle in response to headwinds. Ta.

In this way, the overall performance of a sailing device that utilizes wind power can be greatly improved, and its effects are extremely high.

[Brief explanation of drawings]

Fig. 1 is a side view showing the structure of a wind propulsion device used in the present invention, Fig. 2 is a top view thereof, Fig. 3 is a side view of an embodiment of the link mechanism, and Fig. 4 is a state in which the wind turbine is retracted. FIG. 5 is a side view of the link mechanism, and FIG. 5 is a top view thereof. 100. Hull 300. Center board 510. Link mechanism 706. Windmill 1 12,,,Ball 14,,,Horizontal axis 16.0. Guide cam 19 tongue-shaped member 20. . 21. First movable cam 22. . 231. , cam 24°25, , second movable frame 26, , hub 27°200. Mast 480. Rudder 6006 rotation shaft 18. Base frame 1.3. ,,Bearing is part 15, ,,Guide boss 18 bearing, bolt, bent part rotating bearing is rotating shaft

Claims (1)

[Claims] The base frame is provided with a horizontal axis perpendicular to the traveling direction, a surface guide, and a curved rear guide cam, and a first movable frame that can rotate back and forth around the horizontal axis is provided. is equipped with a second movable frame that rotates around an axis perpendicular to the horizontal axis, and a stopper that determines the rotation range of the second movable frame. A second movable frame having a bent portion and an arc-shaped cam and a rotation bearing for a wind turbine near its tip is provided, the wind turbine is attached to the rotation bearing portion, and the first movable frame is placed in the front position. The front guide engages the cam of the second movable frame, the bent portion contacts the stopper at a predetermined maximum rotational position of the second movable frame, and the bent portion engages with the rear guide cam in the retracted state. A rotary blade control mechanism characterized by being configured as follows.