風(fēng)電齒輪箱太陽(yáng)輪斷齒研究

打開(kāi)文本圖片集

摘要：分析討論了太陽(yáng)輪的斷齒原因。SEM結(jié)果表明：在斷裂面疲勞源處，有大量的非金屬夾雜物聚集，金屬基體的連續(xù)性被夾雜物破壞，這樣會(huì)造成局部的應(yīng)力集中，從而萌生裂紋，最終導(dǎo)致太陽(yáng)輪疲勞斷齒。

關(guān)鍵詞：太陽(yáng)輪；風(fēng)電齒輪箱；非金屬夾雜物；疲勞斷裂

Study on broken teeth of sun gear of wind turbine gearbox

Abstract： In this paper， the causes of the broken teeth of the sun gear were analyzed and discussed. SEM images showed that there were a large number of aggregated nonmetallic inclusions at the fracture surface of fatigue source， and the continuity of the metal matrix was damaged by inclusion. This will cause local stress concentration， resulting in the initiation of cracks， and eventually lead to fatigue broken teeth of sun gear.

Keywords： sun gear; wind power gearbox; nonmetallic inclusions; fatigue fracture

1 序言

風(fēng)電齒輪箱是重要傳動(dòng)部件，通過(guò)齒輪箱的傳遞，葉片在風(fēng)力作用下將產(chǎn)生的動(dòng)力傳遞給發(fā)電機(jī)[1-3]。（剩余3425字）