Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Passive paddle changing wind power generator

A wind turbine, passive technology, applied in the direction of wind turbine, wind motor combination, wind turbine control, etc., can solve the problems of high manufacturing cost, complex structure, poor stability, etc., to improve safety and stability, pitch change Obvious effect and good stability

Inactive Publication Date: 2011-08-31
ZHEJIANG HUAYING WIND POWER GENERATOR
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the current mechanically controlled pitch device, the structure is relatively complicated, the transmission performance is unstable, and the manufacturing cost is high. The electronically controlled one has poor stability and high failure rate in bad weather conditions. machine had a considerable impact on

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Passive paddle changing wind power generator
  • Passive paddle changing wind power generator
  • Passive paddle changing wind power generator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Such as figure 1 , 2, the passive variable pitch wind power generator described in this embodiment includes fan blade 1, fan blade connecting handle 2, hub spoke tube 3, crank 4, synchronous disk 5, motor shaft 6, pull rod 7, wind The blade 1 is installed on the fan blade connecting handle 2, and the fan blade connecting handle 2 is connected with the hub spoke tube 3 through the bearing 8, and can rotate relatively. The root of the fan blade connecting handle 2 is connected with the crank 4 by a key, and the crank 4 is connected with the synchronous disk 5 through the interlocking structure composed of three connecting rods 20 and six joint bearings, so that the rotary motion of the fan blade connecting handle 2 is converted into a synchronous Reciprocating motion of disc 5. The synchronous disk 5 and the pull rod 7 passing through the hollow motor shaft 6 adopt a flat key to cooperate, and the pull rod 7 is provided with bolts to fix the pull rod 7 and the synchronou...

Embodiment 2

[0017] As shown in Figure 3, the passive variable pitch wind power generator described in this embodiment is based on Embodiment 1. A spring gland 10 is provided at one end of the pull rod 7, and a spring gland 10 is provided between the motor shaft 6 and the spring gland 10. There is a spring 11, and a damper 12 is arranged inside the spring 11. The elastic force generated by the deformation of the spring 11 forms a pair of balance forces through the centrifugal force of the pull rod 7, the concentric disk 5, the crank 4, the blade connecting handle 2 and the centrifugal hammer 9. When the wind speed decreases Small, when the rotation speed of fan blade 1 slows down and the centrifugal force of centrifugal hammer 9 decreases, the angle of fan blade 1 is automatically reset by the elastic force of spring 11, and the compression and reset of spring 11 are restricted by damper 12, which can eliminate excessive wind speed The change results in vibrations from frequent pitch change...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a passive variable propellers aerogenerator, comprising fan blades, fan blade connection handles, hub radial canals, cranks, synchronous disks, a motor shaft and pull rods, wherein, the fan blades are installed on the fan blade connection handles connected with the hub radial canals by bearings, the fan blade connection handles and the hub radial canals can relatively rotate, the root parts of the fan blade connection handles are connected with a crank connected with the synchronous disks by linkage structures, the pull rods are connected on the synchronous disks, andcentrifugal hammers are installed on the fan blade connection handles. In the aerogenerator, the variable propellers have simple structure, favorable stability and obvious effect, control and adjust the angle of each wind wheel blade handle by the centrifugal force to the centrifugal hammers by the rotation of the aerogenerator, and cause the wind wheel of the aerogenerator to be at an optimal start angle during low wind and to be at an optimal windward angle position at rated wind speed; during strong wind force, the rotate speed of the aerogenerator can be controlled with a rated rotate speed, thereby preventing the overload of the aerogenerator and improving the safety and the stability of the aerogenerator.

Description

technical field [0001] The patent of the present invention relates to a wind power generator, especially a passive variable pitch wind power generator. Background technique [0002] In today's society, non-renewable energy is decreasing day by day, and energy problems are becoming more and more serious. As an inexhaustible, green and environmentally friendly renewable energy, wind energy has a good development prospect, and it is the main direction for the implementation and utilization of new energy and renewable energy in my country. In wind power generation, due to the erratic wind speed in nature, in order to obtain the maximum wind energy and achieve the maximum utilization effect, the pitch technology is often used to adjust the angle between the wind blade and the windward side to the best state. Due to its advantages of low wind start and high wind speed limit, this technology improves the working performance of wind turbines in various weather conditions, so it is m...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F03D9/00F03D1/06F03D7/04F03D9/25
CPCY02E10/723Y02E10/721Y02E10/72
Inventor 郭峰杨晶明
Owner ZHEJIANG HUAYING WIND POWER GENERATOR
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products