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WIND POWER PLANTS. Wind turbines
INVENTION
Patent of the Russian Federation RU2239723

Windmill

Windmill

The name of the inventor: Kuznetsov Veniamin Vasilyevich (RU); Kuznetsov Danil Veniaminovich
The name of the patent holder: Kuznetsov Veniamin Vasilyevich (RU); Kuznetsov Danil Veniaminovich
Address for correspondence: 454080, Chelyabinsk, ul. Engels, 36, ap. 23, V.V. Kuznetsov
Date of commencement of the patent: 2002.08.20

The invention relates to wind energy and can be used in the creation of new types of stationary and transported installations. The technical result is to increase the reliability in operation, to maximize the efficient use of wind flow energy, to simplify the design and improve processability. The windmill is provided with a rotor comprising a horizontal central shaft on which the gears of the chain drive are fixedly coaxially with it, each of which is connected by an independent chain transmission with satellite links arranged around the central shaft radially and evenly, each link comprising a blade gearbox consisting of a pinion Chain transmission, as well as from the large and small cylindrical gears, the latter being coaxial and rigidly connected to the sprocket gear of the blade gear, and the large cylindrical gear fixed to the axis of the blade installed horizontally, with each blade supported by the ends of its axles, Brackets reinforced with bases on hubs mounted on both ends of the shaft with the possibility of rotation, and the tops of the brackets at both ends of the central shaft are connected by ring rims, which are driving wheels connected by a flexible transmission with windmill energy converters. The central shaft is supported by both ends on frames which are fixed on a platform supported by carts mounted on a circular track, the center of which coincides with the axis of rotation of the platform.

DESCRIPTION OF THE INVENTION

The invention relates to wind energy and can be used to create new types of stationary and transported wind turbines. Known is a windmill comprising a vertical shaft provided with satellite links comprising vertical rotary blades whose axes are connected to gears, a platform and a weather vane connected to a bracket provided with contact groups (see RU 2050466 C1, class F 03 D 7/06, 20.12 .1995).

The disadvantages of this wind turbine are low efficiency and increased sail windmill at high wind speeds, and low reliability due to the use of blades, reinforced with one end.

Known windmill with a vertical shaft, whose blades are mounted on vertical tubular axes, equipped with gear wheels. The blades with a rotor revolution make a half-turn. To rotate the blades, an infinite chain is used (see AS USSR No. 1174, M.K. F 03 D 3/00, 1926).

The disadvantages of this wind turbine are the inability of the windmill to increase the wind speeds (especially to the stormy ones), and the complexity of the windmill orientation to the direction of the wind. The technical result consists in using the maximum efficiency of wind energy in the widest range of wind speeds (up to storm currents) with the maximum possible simplicity of the design, increasing the efficiency of the wind turbine, its reliability and manufacturability in production, and in operation and is provided by That in a wind turbine comprising a shaft provided with satellite links comprising blades whose axes are connected to gears, a chain drive, a platform and a weathervane connected to the bracket provided with contact groups according to the invention on a central axis rotationally rotating about its axis, Rigidly installed coaxially with the shaft of the chain drive gear, each of which is connected by an independent chain transmission with satellite links located around the central shaft radially and evenly, each link comprising a blade gearbox consisting of a chain transmission gear, and also of a large and small cylindrical gears , The latter being coaxial and rigidly connected to the sprocket gear of the blade reducer, and the large cylindrical gear is fixed to the axis of the blade installed horizontally, each blade being supported by the ends of its axles rotatably on brackets reinforced with bases on hubs mounted at both ends of the central Rotatable shafts, and the tops of the brackets at both ends of the central shaft are connected by ring rims which are driving wheels that are connected by flexible transmission to energy converters, the central shaft being fixed at both ends with frames fixed to opposite sides of the platform in the center Which is equipped with a weather vane, the platform being located on trolleys mounted on a circular track, the center of which coincides with the axis of rotation of the platform, the trolleys comprising traction motors. The windmill contains devices for adjusting and tensioning the chain as well as the flexible transmission and, in addition, it is equipped with a power take-off device, and with stiffening rods connecting the ring rims of the windmill with each other.

Windmill
Windmill Windmill

1 shows a wind turbine, a general view;

2 shows a wind turbine, top view;

FIG. 3 shows a wind turbine, a side view (from the side perpendicular to the wind flow); FIG.

4 shows internal kinematic connections of the windmill rotor.

The windmill is provided with a rotor comprising a central shaft that does not rotate about its axis, the central shaft 1 being horizontal.

On the central shaft, coaxially with it, the chain transmission gears 2 are rigidly mounted, each of which is connected by an independent chain transmission with satellite links arranged around the central shaft radially and evenly, each link comprising a blade reducer consisting of a chain gear 4, and And from the big 5 and small 6 cylindrical gears, the latter being coaxial and rigidly connected to the sprocket gear of the blade gearbox.

The gear ratio of the chain gears is 1: 1, and the ratio of the small and large cylindrical gears is 1: 2, with the large cylindrical gear fixed firmly to the axis 7 of the blade 8 installed horizontally, with each blade supported by the ends of its axles rotatably on the brackets 9 , Reinforced with bases on hubs 10 mounted on both ends of the central shaft with the possibility of rotation, and the tops of the brackets at both ends of the central shaft are connected by ring rims 11 which are driving wheels connected by a flexible transmission 12 to energy converters 13. The central shaft is supported by both ends on the frames 17 which are mounted on opposite sides of the platform 18 located on carts 19 equipped with traction motors and mounted on a circular route 20 whose center coincides with the axis of rotation of the platform in the center of which a weather vane 21 is installed, by means of which the orientation to the wind is monitored. The windmill includes devices for adjusting and tensioning the chain transmission (not shown), but also the flexible transmission 22, and furthermore equipped with an electric power pickup device 23, and with stiffening rods connecting the annular rims of the windmill with each other (not shown).

PREPARATION OF THE WIND-MOTOR TO WORK AND ITS WORK

Initially, the blades 8 are installed, for which the platform 18 is rotated so that the axis of the rotor coincides with the direction of the wind. Each vane 8 is alternately brought to its lowest position, with the arms 9, to which the axis 7 of the adjustable blade 8 is fixed, become perpendicular to the surface of the platform 18. The plane of the blade 8 is positioned parallel to the plane of the platform. By turning on the traction motors mounted on the trolleys 19, the platform 18 is deployed to the wind flow. The incoming wind flow V1, acting on the blades 8, creates the rotor torque, while as a result of the interaction of the chain drive 3 with the gears 4, 5, 6 of the blade reducer, the planes of the blades 8 unfold at the optimum angle to the wind flow, and for one complete revolution of the rotor Around its axis, the blades 8 rotate around their own axis 7 by a half-turn, with the direction of rotation of the blades coinciding with the direction of rotation of the rotor. The blades 8, which are in the upper position during the sweep around the axis of the central shaft 1, become perpendicular to the wind flow, and thus the maximum torque the rotor will receive at the maximum distance from the earth where the wind speed is greater than at the surface of the earth. Depending on the speed of the wind flow, the required number of energy converters is switched on and the required angle between the rotor axis and the direction of the wind flow is selected. At storm wind speeds, if necessary for prevention or repair, platform 18 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 8 will be parallel to the wind flow. In this case, the rotor torque is absent and the rotor stops.

The authors do not know the sources of patent and scientific and technical information containing information about technical solutions, similar to the ones claimed.

The authors do not know the technical solutions that have the properties that the claimed solutions have.

In practice, the claimed solutions will create a new type of wind energy converter.

Thus, the authors believe that the claimed solutions have novelty and inventive level.

The industrial application of the announced solutions will solve many problems of energy supply without pollution of the environment.

CLAIM

1. A wind turbine comprising a shaft provided with satellite links comprising blades whose axes are connected to gears, a chain drive, a platform and a weathervane connected to a bracket provided with contact groups, characterized in that on a central axis rotationally rotating about its axis, Rigidly installed coaxially with the shaft of the chain drive gear, each of which is connected by an independent chain transmission with satellite links located around the central shaft radially and evenly, each link comprising a blade gearbox consisting of a chain transmission gear, and also of a large and small cylindrical gears , The latter being coaxial and rigidly connected to the sprocket gear of the blade reducer, and the large cylindrical gear is fixed to the axis of the blade installed horizontally, each blade being supported by the ends of its axles rotatably on brackets reinforced with bases on hubs mounted at both ends of the central Rotatable shafts, and the tops of the brackets at both ends of the central shaft are connected by ring rims which are driving wheels that are connected by flexible transmission to energy converters, the central shaft being fixed at both ends with frames fixed to opposite sides of the platform in the center Which is equipped with a weather vane, the platform being located on trolleys mounted on a circular track, the center of which coincides with the axis of rotation of the platform, the trolleys comprising traction motors.

2. Wind turbine according to claim 1, characterized in that it comprises tensioning devices for chain as well as flexible transmission.

3. A wind turbine according to any one of claims 1 to 2, characterized in that it is provided with a power take-off device.

4. Wind turbine according to any one of claims 1, 2 or 3, characterized in that it is provided with stiffening rods connecting the annular rims with each other.

print version
Date of publication 30.01.2007gg