Wind power gear box contraction disk calculation method

A technology of wind power gearbox and calculation method, applied in calculation, electrical digital data processing, design optimization/simulation, etc., can solve problems such as discrepancy between calculation results and actual use results, difficulty in achieving convergence, and inability to perform related calculations.

Pending Publication Date: 2019-04-26
NANJING AVIS TRANSMISSION TECH
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. The three-dimensional modeling of the shrink disk and the pre-processing workload in the finite element are relatively large
[0006] 2. Shrink disk connection is a process from clearance fit to interference fit. It is difficult to achieve convergence in simulating this process in finite element, and the calculation results are inconsistent with the actual use results
[0008] Therefore, at this stage, there is no accurate calculation method for the shrink disk of the wind power gearbox, and relevant calculations cannot be performed. As a very important connecting part of the gearbox, the shrink disk has an important impact on the design of the new gearbox and the after-sales maintenance of the gearbox.

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
  • Wind power gear box contraction disk calculation method
  • Wind power gear box contraction disk calculation method
  • Wind power gear box contraction disk calculation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0093] When using shrink disk calculation software to calculate, only need to input the basic parameters ( Figure 9 ) can accurately calculate the equivalent stress and transmittable torque of the inner ring, outer ring, planet carrier, and main shaft of the shrink disk, and calculate the results in the software according to the above parameters ( Figure 8 ) and the result interface ( Figure 7 ), the shrink disc is advanced according to the full stroke. The calculation results show that the stress of the wind power gearbox meets the strength requirements, but the transmission torque safety factor is low, and there is a risk of slipping. The result is consistent with the actual situation. The shrinkage can be improved by increasing the stroke disk usage.

[0094] The above calculation shows that the reasonable application of the thick-walled cylinder theory in the elastoplastic theory in the calculation of the shrinkage disk has solved the problem that there is no accurate ...

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 provides a wind power gear box contraction disk calculation method. The method is characterized in that an inner ring, an outer ring, a planet carrier and a main shaft are thick-wall cylinders, and in a cylindrical coordinate system, the relation between displacement of the inner side and the outer side of the inner ring, the outer ring, the planet carrier and the main shaft and pressure of the two sides is obtained through elasticity analysis of the thick-wall cylinder theory and a displacement component formula in a Lame formula; Whether the contraction disc is pressed according to full stroke or full pre-tightening force is obtained; components of the inner ring, the outer ring, the planet carrier and the inner side and the outer side of the main shaft of the contractiondisc are obtained; And the equivalent forces of the inner ring, the outer ring, the planet carrier and the main shaft of the final contraction disc can be obtained according to the yield condition ofthe Mites. According to the method, the calculation problem of the contraction disk is solved, a basis is provided for new gearbox design, and accurate strength analysis and torque transmission parameters are provided for designing and maintaining the contraction disk of the wind power gearbox.

Description

technical field [0001] The invention relates to a calculation method for a shrink disk of a wind power gearbox. Background technique [0002] The input conditions of the wind power gearbox are complex, and the input torque is relatively large. The connection between the input main shaft and the planetary carrier needs to transmit large torque and withstand large and impact loads. The shrink disk connection is the only feasible connection method. As an important part of the mechanical power transmission system of a single large-capacity wind turbine, the shrink disk connection of wind power gearbox has become one of the key technologies restricting the development of wind power technology. The calculation of its strength and connection performance has important social and economic benefits. [0003] In the prior art, the three-dimensional modeling based on the actual size of the shrink disk is imported into the finite element software, and the contact form is set in the finit...

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
IPC IPC(8): G06F17/50
CPCG06F30/17G06F30/20
Inventor 史洪敏李靖吴伟强
Owner NANJING AVIS TRANSMISSION TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products