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發(fā)芽土豆(金幣+1):謝謝參與 2010-07-05 12:07:16
nust2007(金幣+5, 翻譯EPI+1): 2010-07-05 16:48:00
中國(guó)北車股份北京南口公司與歐洲知名齒輪箱設(shè)計(jì)公司orbital2緊密合作，具有最先進(jìn)的風(fēng)電齒輪箱設(shè)計(jì)開發(fā)技術(shù)，經(jīng)驗(yàn)和檢測(cè)能力，擁有一套完整的世界最領(lǐng)先的設(shè)計(jì)優(yōu)化分析軟件系統(tǒng)，可靠的檢測(cè)和試驗(yàn)手段。該風(fēng)電齒輪箱的技術(shù)特點(diǎn)是：
Through close cooperation with the well-known designing company from Europe, named orbital2, Nankou company of CNR now owns the most advanced ability of researching, developing, detecting of wind gearbox, and has a complete analysis software system, reliability testing and trial methods with the top level in the world.
可精確優(yōu)化各零件之間壽命匹配性和整體剛度。精度和完全基于有限元的優(yōu)化結(jié)果非常接近。完全基于有限元的優(yōu)化至少需要數(shù)月的時(shí)間才能完成，但利用MASTA最多只需要半小時(shí)就可以完成。
Various parts can be accurately optimized by matching and the overall stiffness. The result is proximal to the one based on finite element optimization. It takes at least several months to complete the optimization based on finite element entirely, while only half an hour through MASTA software.
行星齒輪系最大的技術(shù)難點(diǎn)是行星齒輪之間的均載問題。利用SMT本設(shè)計(jì)技術(shù)，不需要太陽輪和齒圈浮動(dòng)，也不需要提高制造和裝配精度，就可達(dá)到行星齒輪之間載荷均勻分配的目的。
The most difficult problem for planetary gear train is the load sharing among planetary gears. Using the designing technology of SMT, without float solar wheel and gear ring as well as improving accuracy of manufacturing and assembling, homogenized load distribution among Planetary gears can be achieved.
目前風(fēng)電齒輪箱的設(shè)計(jì)方案都沒有有效地將風(fēng)葉的彎矩，顛覆力矩等對(duì)齒輪箱有害的力和力矩在齒輪箱輸入端之前過濾掉。另外再摻入行星齒輪之間載荷不均問題，使得外力和內(nèi)力兩種問題交織在一起，解決起來十分棘手。目前常用的對(duì)策是在齒輪箱內(nèi)部采用至少兩類浮動(dòng)零件以使各零件自動(dòng)找到相對(duì)最佳的位置。但這種對(duì)策需要在大量實(shí)驗(yàn)基礎(chǔ)上總結(jié)出相應(yīng)的關(guān)鍵經(jīng)驗(yàn)，否則浮動(dòng)件和固定件之間相對(duì)運(yùn)動(dòng)會(huì)導(dǎo)致過分的磨損，浮動(dòng)件本身也會(huì)導(dǎo)致過大的振動(dòng)與噪音。
At present, none of the wind gear box designing scheme can filter the moment, subversion torque and other harmful forces and moments before the gear box input terminal. In addition, the load imbalance among the planetary gears makes external and internal forces interleaving, therefore it is very difficult to solve. The common solution is: using at least two types of internal gearbox components to enable the various floating parts automatically find the best relative position. But this method need to summary corresponding key experiences based on a large number of experiments, otherwise relative movements between the floating and fixed parts will result in wearing, also vibration and noise will appear on floating parts. |
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