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

Electromagnetic variation paddle mechanism of windmill generator

An electromechanical and magnetic steel technology, applied in the field of wind turbine electromagnetic pitch change mechanism, can solve maintenance troubles and other problems, and achieve the effects of easy maintenance, fast response, no contact friction and vibration

Inactive Publication Date: 2011-01-26
包头市汇全稀土实业(集团)有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the brakes used are generally contact brakes, and the maintenance is also very troublesome.

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
  • Electromagnetic variation paddle mechanism of windmill generator
  • Electromagnetic variation paddle mechanism of windmill generator
  • Electromagnetic variation paddle mechanism of windmill generator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] The present invention is made up of wheel hub 1, fairing 2, pitch extension joint 3, blade 4, motor winding stator 5, magnetic steel rotor 6, motor winding stator 5 and magnetic steel rotor 6 form permanent magnet stepping motor, winding The stator 5 is connected to the inner ring of the slewing support bearing 7, and the magnetic steel rotor 6 is connected to the outer ring of the slewing support bearing 7 to form a permanent magnet stepping motor support and rotation mechanism. The inner ring of the slewing support bearing 7 is connected to the blade 4 through bolts. Connected, the outer ring of the slewing support bearing 7 is connected with the hub 1 by bolts to form a pitch-changing mechanism.

[0012] Working principle: After the winding stator 2 of the motor passes a group of pulse electricity, it drives the permanent magnet stepping rotor to rotate 1 pole, and drives the blades to rotate at a certain angle to achieve the purpose of pitch change. If it is a conti...

Embodiment 2

[0014] The present invention is made up of wheel hub 1, fairing 2, pitch extension section 3, blade 4, motor winding stator 5, magnetic steel rotor 6, motor winding stator 5 and magnetic steel rotor 6 form permanent magnet stepping motor, motor winding The wire stator 5 and the magnetic steel rotor 6 form a permanent magnet stepping motor, the winding stator 5 is connected with the outer ring of the slewing support bearing 7, and the magnetic steel rotor 6 is connected with the inner ring of the slewing support bearing 7 to form a permanent magnet stepping motor support and In the rotating mechanism, the outer ring of the slewing support bearing 7 is connected to the blade 4 through bolts, and the inner ring of the slewing support bearing 7 is connected to the hub 1 through bolts to form a pitch-changing mechanism.

Embodiment 3

[0016] The present invention is made up of wheel hub 1, fairing 2, pitch extension joint 3, blade 4, motor winding stator 5, magnetic steel rotor 6, motor winding stator 5 and magnetic steel rotor 6 form permanent magnet stepping motor, winding The stator 5 is connected to the inner ring of the slewing support bearing 7, and the magnetic steel rotor 6 is connected to the outer ring of the slewing support bearing 7 to form a permanent magnet stepping motor support and rotation mechanism. The outer ring of the slewing support bearing 7 is connected to the blade 4 through bolts. Connected, the inner ring of the slewing support bearing 7 is connected with the hub 1 through bolts to form a pitch-changing mechanism.

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 an electromagnetic propeller-switching mechanism for wind power generators, which belongs to the field of wind power generation. The invention is characterized in that: a motor wound stator and a magnet steel rotor are made up into a permanent magnet step motor; the stator and rotor in the permanent magnet step motor are respectively connected with an internal rotary support and an external rotary support, so as to form a support and rotation system for the permanent magnet step motor. The internal and external rotary supports are respectively connected with vanes andhubs through bolts to form a propeller-switching mechanism. The propeller-switching system is not provided with gear meshing, for which it is not possible to result in gear wearing and damage; meanwhile, the propeller-switching system has the advantages of neither gearbox oil leakage nor damping, and easy maintenance. Braking and quick response are maintained through permanent magnet steel and DCcurrent without contact friction or vibration; meanwhile, the invention can effectively solve tower shadow phenomenon.

Description

1. Technical field [0001] The invention relates to an electromagnetic pitch-changing mechanism of a wind power generator, which belongs to the field of wind power generation. 2. Background technology [0002] The pitch wind turbine drives the hub to rotate through the blades, and the angle of attack of the blades must be changed in order to adjust the rotation speed and output power of the hub. Generally, the rotation speed and output power of the hub are changed by changing the rotation angle of the blades from 0 to 90 degrees. The existing pitch system changes the angle through the gearbox. Since there is contact, the wear and clearance of the gears directly affect Due to the quality of the product and the consistency of the three blades, the maintenance of the lubrication system of the gearbox is very inconvenient, and the change of lubricating oil at low temperature and high temperature may cause problems such as oil leakage and large damping torque. Due to the slow res...

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): F03D7/04F03D11/00
CPCY02E10/723Y02E10/722Y02E10/72
Inventor 张富全
Owner 包头市汇全稀土实业(集团)有限公司
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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com