JPS5891378A - Wind power generating apparatus - Google Patents

Abstract

PURPOSE:To enable to obtain electric power from a stationary body, by fixing a vertical shaft type generator to the top of the stationary body of a tower in the manner that it is not turned together with a nacelle. CONSTITUTION:A generator 11 is fixed to the top of a stationary body of a tower 3. In detail, an annular rotatable support 2 is disposed at the top of the tower 3, and the generator 11 is extended through the inside of the annular support 2 and fixed to the tower 3 in an immovable manner. Here, the generator 11 is of a vertical shaft type and a gear 10 is fixed to the top of a turning shaft of the generator 11. The gear 10 is coupled operatively to an over-drive gear means 9. The mechanism for coupling the generator 11 with the over-drive gear means 9 can be gears or other means such as a chain or a belt that is capable of converting rotation of a propeller turning shaft 5 into rotation of a vertical shaft. With such an arrangement, it is enabled to obtain electric power from a stationary body.

Description

Description: TECHNICAL FIELD The present invention relates to a propeller-type wind power generator equipped with a nacelle.

Conventional propeller-type wind power generators have to follow the changing wind direction as shown in Figure 1, so the power generator is placed inside the nacelle l, and the nacelle is connected to a stationary body via a rotating table 2v. There is a structural work supported by tower 3.

Since the propeller 40 and rotating shaft 5 drive the engine 1 & engine 7, which are arranged on the same axis through the multi-vehicle WL 6, the generator 7 is of the horizontal axis type.Therefore, the generator 7 is also of the nacelle type. Both l and g rotate depending on the direction of the wind. Power generation there
21 from the rotating part where I7 is generated to the stationary part! A slip ring 8 is provided inside the tower 3 to allow the passage. In general, wind power generators extract energy from the wind, so they are intermittent and have a low energy density, resulting in a large Vt1II, which inevitably increases equipment costs. Therefore, depreciation becomes a big issue, and maintenance-free products are desired. However, as mentioned above, when there is a slip ring, regular inspection of the slip ring, repair work, and replacement work are unavoidable for wear that inevitably occurs.

As is well known, a car with a faulty slip ring is one of the most expensive parts of a rotating electric machine, and the fact that it is located at a height of about 30 meters from where electricity is applied is a factor that reduces work efficiency. It has become.

As mentioned above, propeller-type wind power generators usually have the disadvantage that maintenance and maintenance thereof is surprisingly time-consuming and costly, as is the case with Kotani's power generation equipment.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, it is an object of the present invention to provide a wind power generator 111 that is extremely easy to handle and does not require much time and effort to maintain.

To achieve this objective, the present invention focused on installing the generator in a tower, which is a stationary body, instead of installing it inside a rotating nacelle.

□ Here, one embodiment of the present invention will be explained with reference to FIG. 2.

The nacelle 1 is rotatably mounted on the top of a tower 3 via an annular rotary table 2 equipped with rolling bearings. On the other hand, a speed increasing gear device 9 combined with a brake is directly connected to the rotating shaft 5 of the propeller 4 attached to the tip of the nacelle 1, and this device 9 is installed inside the nacelle 1. The generator 11 is fixedly supported at the top of the tower 3, which is a stationary body. The above-mentioned annular rotary table 2 is installed at the top, and the power generation l is inside this annular shape.
Pass ll1l through iT and fix it to Gogi 3. Now, this generator is of a cross-shaft type, and a gear IO is fitted to the upper end of its rotating shaft. Then, this gear lO and the speed increasing gear device 9 are meshed and connected. The generator 11 and the additional vehicle equipment [9
The coupling mechanism may be gears, chains, belts, etc., as long as the rotation of the propeller's rotating shaft 5 is replaced by the same rotation of the axle.

According to the wind power generation device configured as described above,
The mechanism for extracting the electric power generated in the axle-shaft generator 11 becomes extremely simple. In other words, this power supply mechanism is a transverse type power generation fi
ll stator (two terminal boxes 111: connected to the power transmission equipment installed outside by the connecting conductor 12. Since the generator is supported by the tower 3, which is a stationary body, this The connection mechanism does not require a slip ring.Therefore, there is no need for any maintenance work related to the slip ring, and electrical loss due to the slip ring is eliminated, contributing to the simplification of the device.

As explained above, in the present invention, a wheel-shaped generator is attached to the top of the tower, which is a stationary body, so that it does not rotate together with the nacelle, making it possible to extract electric power from the stationary body. Simplification of the mechanism of the firing device,
It is extremely effective in facilitating maintenance and improving operational efficiency.

[Brief explanation of drawings]

Figure 1 is a side view of a conventional propeller-type wind power generator;
The figure is a side view of a Flobella type wind power generation device 4 showing an embodiment of the present invention. l...nacelle 2...rotating table 3...tower 4...propeller 5...rotating shaft
9...speed-increasing gear device lO...gear
11...Vertical shaft type *m. (7317) Agent: Satoshi Minami Chika Hiro (and 1 others)
given name)

Claims (1)

[Claims] A wind turbine that is equipped with a tower, a nacelle with a propeller attached to the top of the tower via an annular rotary table, and a generator inside the nacelle that converts the rotational power of the propeller into electricity via a transmission mechanism. A wind power generation device characterized in that the power generator is of a cross-shaft type and is fixed to the top of a tower via the inside of a rotary table.