JPS595886A - Wind power generating device - Google Patents

Abstract

PURPOSE:To facilitate maintenance and inspection by a method wherein a torque, generated by a wing wheel, is transmitted to a generator by a mechanical rotation transmitting mechanism to make a slip ring device unnecessary. CONSTITUTION:The torque is generated in the wing wheel 1 by the wind power. The torque is changed into orthogonal direction, in the direction thereof, by three sets of bevel gears 10-12 and is transmitted, at the same time, as the torques having opposite rotating directions through rotary shafts 13, 14 consisting of two pieces of outer and inner shafts. The direction of the rotation of these two torques are changed into orthogonal direction again through three sets of bevel gears 15-17 and, at the same time, these two torques are composed into one torque again to drive the generator 2.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wind power generation device that generates electricity by rotating a generator using an impeller rotated by wind power.

A conventional device of this type is shown in FIG.

In the figure, (1) is an impeller rotated by wind power, (2)
is a generator driven by an impeller (1), (3) is a lead duct that reduces the output current of the generator (2), (4) is a slip ring attached to the lead duct (3), (
5) is a brush that takes out the current from the slip ring (4);
(6) is an external cable, - (7) is a turntable, (8) is a direction plate that rotates the turntable (7) by wind force to constantly direct the impeller (1) to the windward, and (9) is a turntable. (7) This is a pedestal that rotatably supports.

Next, the operation will be explained.

The impeller (1) of the rotary table (7) is constantly oriented directly opposite the wind by the direction plate (8) that receives the wind.

The impeller (1) is rotated by wind power, and the generator (2) generates electricity using this rotational force. The output current of the generator (2) is extracted from the brushes (5) through a lead duct (3) and a slip ring (4) which rotate together with the turntable (7);
It is directly led out to the external cable (6).

Of course, when the rotary table (7) is rotated by the direction plate (8), the lead duct (3) and the slip ring (4) are also rotated by the same angle as the rotation angle of the rotary table (7).

As described above, in the conventional wind power generation device, the generator (2) is installed on the rotating table (7), and the output current of the generator (2) is passed through the lead duct (3) and the slip ring (4) to the brush (5). Since it is a four-piece piece that can be taken out from the machine, there is little relative movement between the slip ring (4) and the brush (5).
The temperature rise of the contact surface due to heat generation due to contact resistance becomes large, and the contact surface current density cannot be increased, so the slip ring (4
) and the brush (5) need to be larger, and since the brush (5) wears out, maintenance inspections such as cleaning around the slip ring (4) and replacing the brush (5) are required. Ta.

This invention was made in order to eliminate the drawbacks of the above-mentioned conventional devices, and by transmitting the rotational force generated by the impeller on the rotary table to the generator using a mechanical rotation transmission mechanism, the generator is connected to a fixed part. The purpose of the present invention is to provide an inexpensive wind power generation device that can be installed in a wind turbine and does not require a slip ring device.

An embodiment of the present invention will be described below with reference to FIG.

In the figure, (10) is a bevel gear that rotates together with the impeller (1), (11) and (12) are two upper and lower bevel gears that mesh with the bevel gear (10), and (13) is the rotating base (7).
A cylindrical external rotating shaft (14) is disposed coaxially with the center of rotation of the bevel gear (11) and transmits the rotational force of the bevel gear (11) downward. The hollow portion (13a) of 13) further penetrates the center hole (16a) of the bevel gear (16), which will be described later, to form the bevel gear (13).
12) Internal rotating shaft that transmits the rotational force downward: =, (
15,) is a bevel gear that changes the direction of the rotational force of the internal rotating shaft (14) in the right angle direction, and (16) is a bevel gear that changes the direction of the rotational force of the internal rotating shaft (14).
) is a bevel gear that redirects the rotational force of (17) in the right angle direction.
) is a bevel gear that combines the rotational forces of the bevel gear (15) and bevel gear (16) into one and transmits it to the generator (2).

Next, the second operation will be explained.

A rotational force is generated in the impeller (1) by the wind force. This rotational force is generated by three bevel gears (10) and (11).

(12) provides two internal and external rotating shafts (13).

When the direction is changed to (14) at right angles, the rotational force is transmitted as a rotational force of equal magnitude and opposite direction of rotation. These two rotational forces are generated by three female bevel gears (15) and (16).
, (17)i, the direction is changed again in the perpendicular direction, and at the same time, the rotational force is again combined as one rotational force to drive the generator (2). The rotational forces of the external rotating shaft (13) and the internal rotating shaft (14) are equal in magnitude and opposite in direction, so they cancel each other out and are not the forces that rotate the rotating table (7).Therefore, the direction Due to the action of the plate (8), the turntable (7) rotates and the impeller (1) constantly faces the wind.

In the above embodiment, a combination of three bevel gears is used as a rotation transmission mechanism for converting rotation in the horizontal axis direction into rotation in the vertical axis direction, and this is combined with a combination of three pin gears, Alternatively, a combination of a worm and a pinion may be used, or a combination of friction discs that utilize countersunk friction force may be used.

As described above, according to the present invention, the rotational force generated by the impeller attached to the rotary table is transmitted to the generator installed on the fixed part by the mechanical rotation transmission mechanism, so it is different from the conventional device. There is no need to use a slip ring device, the device can be made inexpensive, and maintenance and inspection are easy.

[Brief explanation of the drawing]

FIG. 1 is a structural diagram showing a conventional wind power generator, and FIG. 2 is a structural diagram showing a wind power generator according to an embodiment of the present invention. (1) - One impeller, (2) - One generator, (3) - One lead duct, (4) - One slip ring, (5) - One brush, (6) - One external cable, (7) - one turntable, (8
) - one-way board, (9) - one mount, (10), (11). (12), (15), (16), (17)
--Bevel gear, (13)--One external rotating shaft, (14)
- An internal rotation axis. In the drawings, the same reference numerals indicate the same or corresponding parts. Agent Patent Attorney Shin Kuzuno - Figure 1

Claims (1)

[Scope of Claims] 1. A rotary table rotatably installed on a pedestal, an impeller attached to the rotary table and rotated by wind power, and the rotary table oriented in the wind direction so that the impeller constantly faces upwind. A wind power generation device 2 characterized in that it is equipped with a direction plate for rotating the impeller according to the rotational speed of the impeller, and a rotation transmission mechanism that transmits the rotational force of the impeller to a generator installed in a fixed part. a bevel gear that rotates with
Two upper and lower bevel gears that mesh with this bevel gear, two inner and outer rotating shafts that are rotated in opposite directions on the same axis as the rotation center of the rotary table by these two bevel gears, and two inner and outer rotating shafts. Claim 1, characterized in that it consists of two upper and lower bevel gears fixed to each lower end of the shaft, and a bevel gear that meshes with these two bevel gears to drive a generator.
The wind power generation device described in section.