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WIND POWER PLANTS. Wind turbines
INVENTION
Patent of the Russian Federation RU2190123

Windmill

Windmill

The name of the inventor: Kuznetsov Veniamin Vasilievich; Kuznetsov Danil Veniaminovich
The name of the patent holder: Kuznetsov Veniamin Vasilievich; Kuznetsov Danil Veniaminovich
Address for correspondence: 454080, Chelyabinsk, ul. Engels, 36, ap. 23, to VV Kuznetsov
Date of commencement of the patent: 2000.06.13

The invention relates to wind energy and can be used in the creation of new types of stationary and transported installations. The technical result, which consists in increasing the efficiency of the wind turbine, its reliability and manufacturability in operation and manufacture, is provided by the fact that in a windmill containing the body, a shaft provided with satellite links containing blades whose axes are connected to gears, an eccentric, a platform And a weathervane connected to a bracket provided with contact groups according to the invention, the eccentric is made central, mounted on a nonrotating central shaft disposed horizontally and is kinematically connected to satellite links, each of which comprises a crank-slider mechanism consisting of a push-puller with an intermediate roller , A connecting rod, and a blade reducer consisting of a large and small cylindrical gears, the latter performing the function of a crank, and each blade ends with its axle ends supported by brackets reinforced with bases on a cylindrical body at both ends of which are mounted drive cylindrical gears associated with Gears of the energy converter, the body being supported by frames through bearings, the central shaft and supported by frames with fixation, and the frames are fixed on opposite sides of the platform, in the center of which there is a weather vane, the platform is located on trolleys installed on a circular route and containing traction Electric motors.

DESCRIPTION OF THE INVENTION

The invention relates to wind energy and can be used to create new types of stationary and transported wind turbines.

A wind turbine is known with a vertical shaft with a frame, a generator, rotary blades, bevel gears, a weathering mechanism with a weathercock, a fixed vertical support, a hollow cylinder, a vertical shaft ring, two conical half-hollows, hollow horizontal shafts, and racks with contacts electrically connected With the starter of the reverse electric motor (see SU, 1813916 A1, cl. F 03 D 7/06, 07.05.1993).

The disadvantages of the wind turbine are low efficiency, complexity of construction and low reliability due to the large number of kinematic connections between the elements of the structure.

A wind turbine is known, comprising a housing, a shaft provided with satellite links comprising blades whose axes are connected to gears, an eccentric, a platform and a weathervane connected to a bracket provided with contact groups (see RU, 2050466 C1, class F 03 D 7/06 , 20.12.1995), on a set of essential features adopted for the closest analogue of the invention (prototype).

The disadvantages of this wind turbine are low efficiency and increased sail wind turbine at high wind speeds.

The technical result, which consists in increasing the efficiency of the wind turbine, its reliability and manufacturability in operation and manufacture, is provided by the fact that in a windmill containing the body, a shaft provided with satellite links containing blades whose axes are connected to gears, an eccentric, a platform And a weathervane connected to a bracket provided with contact groups, according to the invention, the eccentric is made central, mounted on a nonrotating central shaft disposed horizontally, and is kinematically connected to satellite links, each of which comprises a crank-slider mechanism consisting of a slide-pusher with an intermediate roller , A connecting rod, and a blade reducer consisting of a large and small cylindrical gears, the latter carrying out the function of the crank, and each blade with the ends of its axles rests on brackets fastened with bases on a cylindrical body at both ends of which drive pinion gears associated with Gears of the energy converter, the body being supported by the frames through bearings, the central shaft and supported by frames with fixation, and the frames are fixed on opposite sides of the platform, in the center of which the weather vane is installed, the platform is located on trolleys installed on a circular route and containing traction Electric motors, the wind turbine comprising satellite gears providing a constant or alternating engagement of the power converter gears with the drive cylindrical gears.

The windmill is equipped with an electric power take-off device comprising a bracket mounted on a windmill platform and provided with spring-loaded conductive brushes, and a cylinder reinforced in the ground in such a way that its axis coincides with the axis of rotation of the windmill platform, the cylinder comprising conductive rings in contact with conductive brushes .

Windmill
Windmill

1 shows a wind turbine, a general view;

2 shows a wind turbine, top view;

In Fig. 3 - wind turbine, side view (from the side perpendicular to the wind flow);

4 shows internal and external kinematic connections of the windmill;

5 shows the arrangement of the pushers with rollers (view A-A);

In Fig. 6 - energy converter and drive cylindrical gears of the windmill rotor (type BB);

FIG. 7 shows a device for removing electric power of a wind turbine.

The windmill includes a body 1, a central non-rotating shaft 2 disposed horizontally with a central eccentric 3 kinematically connected to the axes 4 of the blades 5 by means of satellite links, each comprising a crank-connecting rod-slider mechanism consisting of a spring-loaded pusher 6 with an intermediate roller 7, connecting rod 8, and a blade reducer, consisting of a large 9 and a small 10 cylindrical gears, the latter also fulfilling the function of the crank. The big gear 9 of the blade gearbox is connected to the axis 4 by a splined connection, spring-loaded and fixed by a nut 11 and a lock nut 12. The axles 4 are supported by brackets 13 whose bases are fixed to the body 1. The brackets 13 are connected together by a tubular ring 14 and reinforced by the stiffening rods 15 with the body 1. The drive cylindrical gears 16 are in constant or transmitted engagement with the gear 17 of the energy converter 18 via the satellite gear 19. The power converter 28 is connected to the drive cylindrical gear 29 similarly. The cylindrical body 1 rests on the frames 20 through the bearings 21. The central shaft 2 is supported by the frames 20 by means of a fixing device 22 and is connected to the housing 1 by bearings 23 and 24. The frames 20 are fixed on opposite sides of the square platform 25 whose angles are located on the carriages 26, The electric power pick-up device comprises a cylinder 30 reinforced in the ground, concentric conductive rings 31, spring-loaded conductive brushes 32 in contact with the rings and mounted on a bracket 33 fixed on a platform 25 whose center of rotation coincides with the axis of the cylinder 30. The orientation of the wind is controlled by a spring loaded weather vane 34 located in the center of the platform 25 and containing contact groups for controlling the traction motors of the carriages 26.

Preparing the wind turbine for work and its operation. Initially, the blades 5 are installed, for which the platform 25 is unfolded in such a way that the axis of the rotor coincides with the direction of the wind. Each blade 5 is alternately brought to its lowest position (the arms 13, to which the axis 4 of the adjustable blade 5 is attached, become perpendicular to the surface of the platform 25). The plane of the blade 5 is installed parallel to the plane of the platform 25. By turning on the traction motors mounted on the carriages 26, the platform 25 is deployed to the wind flow. The incoming wind flow VI, acting on the blades 5, creates the rotor torque, while the pushing sliders 6, running around the stationary central cam 3, act through the connecting rod 8 on the gears 10 and 9 of the blade reducer, which unfold the plane of the blades 5 at an optimum angle to the wind Flow, and for one complete revolution of the rotor around its axis, the blades 5 rotate about their own axis 4 by a half-turn, with the direction of rotation of the blades 5 coinciding with the direction of rotation of the rotor. Depending on the speed of the wind flow, the required number of wind energy converters 28 is turned on and the required angle between the rotor axis and the direction of the wind flow is selected. In case of storm wind speeds, if necessary, prevention or repair, platform 25 is deployed in such a way that the axis of the rotor coincides with the direction of the wind flow, while the planes of the blades 5 will be parallel to the wind flow. In this case, the rotor torque is absent and the rotor stops.

In this case, the following relation is observed between the parameters of the central eccentric 3, which is a circle in the section, the center of which is displaced relative to the axis of the central shaft 2 and the eccentricity of the crank, whose role is played by the casing of the small gear 10 of the impeller gearbox:

2 - 1 = 2 ,

Where 2 - the distance from the geometric axis of the central shaft 2 to the point of the surface of the eccentric 3, which is as far from it as possible; 1 - the distance from the geometric axis of the central shaft 2 to the point of the surface of the eccentric 3, which is at a minimum from it; Eccentricity of the crank; The distance from the axis of rotation of the small gear 10 serving as a crank to the axis on which the connecting rod 8 is mounted.

The blade 5, which is in the upper position during the sweep around the axis of the central shaft 2, becomes perpendicular to the wind flow and, thus, the maximum torque of the rotor will be at the greatest distance from the earth where the wind speed is greater than at the surface of the earth.

CLAIM

1. A wind turbine comprising a housing, a shaft provided with satellite links comprising blades whose axes are connected to gears, an eccentric, a platform and a weathervane connected to a bracket provided with contact groups, characterized in that the eccentric is central, mounted on a nonrotating central shaft, Located horizontally, and kinematically connected to satellite links, each of which contains a crank-slider mechanism consisting of a slide-pusher with an intermediate roller, a connecting rod, and a blade reducer consisting of a large and small cylindrical gears, the latter also fulfilling the function of a crank, And each blade ends with its axle ends rests on brackets reinforced with bases on a cylindrical body at both ends of which drive cylindrical gears are connected to the gears of the energy converter, the body is supported by frames through bearings, the central shaft and rests on the frames with fixation, and The frames are fixed on opposite sides of the platform, in the center of which there is a weather vane, while the platform is located on trolleys installed on a circular route and containing traction motors.

2. A wind turbine according to claim 1, characterized in that it comprises satellite gears that provide a constant or alternating engagement of the energy converter gears with drive cylindrical gears.

Wind turbine according to. 1 and 2, characterized in that it is provided with an electric power pick-up device comprising a bracket mounted on a windmill platform and provided with spring-loaded conductive brushes, and a cylinder reinforced in the ground in such a way that its axis coincides with the axis of rotation of the windmill platform, the cylinder comprising Conductive rings in contact with conductive brushes.

print version
Date of publication 30.01.2007gg