Vertical axis wind turbine with multilayer wind wheels

A wind turbine and vertical axis technology, applied in the field of wind turbines, can solve problems such as unstable output power, reduced service life, and structural fatigue of the transmission system, and achieve the effects of smooth torque fluctuations, reduced fatigue, and improved service life

Active Publication Date: 2011-01-26
SHENZHEN FENGFA SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the output power is unstable, and the selection of generators or wind-powered water pumps is difficult; and the fluctuation of torque will cause fatigue of the transmission system (transmission shaft, bearing, etc.) and reduce the service life.

Method used

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  • Vertical axis wind turbine with multilayer wind wheels
  • Vertical axis wind turbine with multilayer wind wheels
  • Vertical axis wind turbine with multilayer wind wheels

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Experimental program
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Embodiment Construction

[0028] An embodiment of the present invention provides a vertical-axis wind turbine with multi-layer wind rotors. In the vertical-axis wind turbine, at least two layers of wind rotors are stacked and arranged in a staggered manner in the direction of the rotation axis, so that different output torques can be superimposed. And act on the rotating shaft, because the torque fluctuation of the superimposed torque is more gentle, so that the rotating shaft can drive the transmission system to stabilize the output power, reduce the fatigue of the transmission system, and improve the service life.

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtai...

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PUM

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Abstract

The invention relates to a vertical axis wind turbine with multilayer wind wheels. The wind turbine comprises at least two wind wheels with the same structure, wherein each wind wheel comprises a rotating shaft (1), a blade (2), a bracket (3) and a bracket (4); one bracket (3) and one bracket (4) are fixedly connected between each blade (2) and each rotating shaft (1), and the bracket (3) is parallel to the bracket (4); the rotating shafts (1) of the wind wheels overlap and the at least two wind wheels with the same structure are laminated in the direction of the overlapped rotating shafts (1); each bracket (4) of the upper layer of wind wheels passes through the overlapped rotating shafts (1) and respectively overlaps with one bracket (3) of the lower layer of wind wheels, so that the upper layer of wind wheels and the lower layer of wind wheels are staggered on the overlapped rotating shafts (1); and the lower end of the overlapped rotating shafts (1) is connected with a transmission shaft of a generator or wind-driven water pump. The torque ripple of the vertical axis wind turbine is gentler, stable power output is facilitated and the fatigue degree of a transmission system is reduced.

Description

technical field [0001] The invention relates to the field of wind turbines, in particular to a vertical axis wind turbine with multi-layer wind wheels. Background technique [0002] Currently, two main types of vertical axis wind turbines are Φ-type vertical-axis wind turbines and H-type vertical-axis wind turbines. like figure 1 As shown, in the H-type vertical axis wind turbine, the wind wheel includes a rotating shaft (1), blades (2) and brackets (3) and (4); wherein, each blade (2) and the rotating shaft (1) are fixed A support (3) and a support (4) are connected, and the support (3) connected between each blade (2) and the rotating shaft (1) is parallel to the support (4); the lower end of the rotating shaft (1) is connected to the generator or The transmission shaft of the wind water lifter is connected to realize torque transmission and wind energy conversion. [0003] The current vertical-axis wind turbines generally only have one layer of wind rotors. Whether it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D9/00F03D3/02F03D3/06
CPCY02E10/74Y02A20/00Y02P80/10
Inventor 周庆余何利
Owner SHENZHEN FENGFA SCI & TECH DEV
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