Unlock instant, AI-driven research and patent intelligence for your innovation.

A method for varying the load of a stressed component of a pitch bearing

A technology of force-bearing components and pitch bearings, which is applied to wind turbines, control of wind turbines, engines, etc., and can solve problems such as high cost and danger

Active Publication Date: 2021-03-26
SHEYANG ENVISION ENERGY CO LTD
View PDF17 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, the replacement of the pitch bearing needs to disassemble the blade and then hoist the blade after the replacement is completed, while the fan blade is often tens of meters long, such as 30 meters, and weighs hundreds of kilograms. Therefore, if the pitch bearing is to be replaced, the cost It is high and there is a certain risk

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
  • A method for varying the load of a stressed component of a pitch bearing
  • A method for varying the load of a stressed component of a pitch bearing
  • A method for varying the load of a stressed component of a pitch bearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] It should be noted that components in the various figures may be shown exaggerated for the purpose of illustration and are not necessarily true to scale. In the various figures, identical or functionally identical components are assigned the same reference symbols.

[0032] In the present invention, unless otherwise specified, "arranged on", "arranged on" and "arranged on" do not exclude the presence of intermediates between the two. In addition, "arranged on or above" only means the relative positional relationship between two parts, and under certain circumstances, such as after the product direction is reversed, it can also be converted to "arranged under or below", and vice versa Of course.

[0033] In the present invention, each embodiment is only intended to illustrate the solutions of the present invention, and should not be construed as limiting.

[0034] In the present invention, unless otherwise specified, the quantifiers "a" and "an" do not exclude the scen...

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 method for changing the load of a stressed part of a pitch bearing, comprising the steps of: determining the rotational speed difference between the inner ring of the pitch bearing and the stressed part, wherein the inner ring is used for connection with a blade; And make the inner ring and the force-bearing component rotate at a certain angle relative to each other, so that the load of the force-bearing component changes. Furthermore, the invention relates to a system for varying the load of a stressed part of a pitch bearing. The present invention can greatly reduce the probability that the same stress-bearing part of the pitch bearing is always in the heavy-load area, thereby greatly improving the service life of the pitch bearing.

Description

technical field [0001] The present invention generally relates to the field of wind power generation, and in particular to a method for varying the load of a stressed component of a pitch bearing. Furthermore, the invention relates to a system for varying the load of a stressed part of a pitch bearing. Background technique [0002] In recent years, with the increasing emphasis on the environment in various countries, the field of clean energy has shown a trend of rapid development. As a new type of energy, clean energy has the advantages of wide distribution, renewable, and less environmental pollution compared with traditional fossil fuels. As a representative of clean energy, the application of wind power generators is increasing day by day. [0003] An important component of a wind turbine (or fan for short) is the pitch bearing, which is used to adjust the angle between the fan blades and the plane of rotation of the blades, so as to adjust the windward angle of the bl...

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): F03D7/02F03D80/70
CPCF03D7/0224F03D80/70Y02E10/72F05B2240/50F03D1/0658F16C2360/31F05B2270/328F16C19/181
Inventor 梁保柱陈林高学海蔡征宇
Owner SHEYANG ENVISION ENERGY CO LTD