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Lift-drag combined vertical axis wind turbine

A technology of wind power generators and generators, applied to wind power generators, wind power motor combinations, wind power generators at right angles to the wind direction, etc., can solve the problems of not being able to exert the maximum efficiency of wind power generators, and improve the working wind speed range and wind energy utilization High efficiency, strong practicability, novel design effect

Active Publication Date: 2017-10-03
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantage is that it cannot maximize the efficiency of wind turbines

Method used

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  • Lift-drag combined vertical axis wind turbine
  • Lift-drag combined vertical axis wind turbine
  • Lift-drag combined vertical axis wind turbine

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Experimental program
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Effect test

Embodiment Construction

[0028] The present invention will be described in more detail below in conjunction with accompanying drawing:

[0029] combine figure 1 and figure 2 , the main components of the entire lift-drag combined wind turbine are: generator 1, generator drive pulley 2, generator drive V-belt 3, servo motor drive gear 4, servo motor 5, servo motor mount 6, hub 7, Hub transmission pulley 8, tower rod 9, cross arm transmission belt 10, cross arm transmission pulley 11, cross arm 12, blade 13, left half blade 14, cross arm transmission bevel gear 15, lead screw transmission bevel gear 16, left-handed nut 17. Two-way lead screw 18, blade central axis 19, right-handed nut 20, right half blade 21.

[0030] combine Figure 1 to Figure 4 It can be seen that the assembly relationship of the entire lift-drag combined wind turbine is as follows: first, there are reinforcing ribs at the bottom of the tower rod 9, and there are fixed through holes in the gap between the reinforcing ribs. After l...

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Abstract

The invention provides a combination of lift and drag type vertical axis wind power generator. Including the wind wheel, the tower pole and the generator, the wind wheel is composed of the hub, the cross arm, and the blades, the hub is installed on the tower pole, the lower end of the hub transmits the rotational torque to the generator through the transmission mechanism, and the servo motor is installed on the upper end of the hub. A two-way lead screw is installed at the end of the cross arm. There are left-handed nuts and right-handed nuts on the two-way screw. The lower end of the paddle is hinged with the end of the lower cross arm, the two-way lead screw is provided with a screw driving bevel gear, the upper cross arm is provided with a cross arm transmission bevel gear, and a transmission mechanism is set between the servo motor and the cross arm transmission bevel gear. The invention enables the wind generator to have the characteristics of both lift and resistance fans by changing the opening and closing configuration of the blades, and can avoid the disadvantages of both the lift and resistance fans through active control. It is suitable for wind power generation sites under any wind conditions.

Description

technical field [0001] The invention relates to a vertical-axis wind power generator, in particular to a lift-drag combined vertical-axis wind power generator. Background technique [0002] Current wind turbines are mainly divided into two types: horizontal axis and vertical axis. The horizontal axis wind turbine appeared earlier, the technology is mature, and it has been widely used. However, relatively large horizontal-axis wind turbines have high technical requirements, and the difficulty of manufacturing, transportation, installation and maintenance results in high costs. The vertical axis wind turbine has the characteristics of simple structure, good stability, convenient maintenance, wide application range, and low cost. It is divided into drag type and lift type. The resistance wind turbine mainly uses the resistance generated by the airflow passing through the blades as the driving force, which has a large starting torque, a low blade tip speed ratio, and a low win...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D9/25F03D3/06F03D7/06
CPCY02E10/74
Inventor 胡胜海芦晨军郭春阳孙军超祁松谢婷婷万济民张红田飞鸿李渊明
Owner HARBIN ENG UNIV
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