摘 要

在全球能源緊張、注重環(huán)境保護(hù)的今天，提高能源利用效率和發(fā)展可再生能源已成為無可爭議的可持續(xù)發(fā)展能源的兩個(gè)重要方面。風(fēng)能作為一種無污染和可再生的新能源有著巨大的發(fā)展?jié)摿ΑｋS著風(fēng)能的開發(fā)和利用技術(shù)的發(fā)展,風(fēng)力發(fā)電技術(shù)取得了顯著的進(jìn)步,并逐漸成為能源技術(shù)中的一個(gè)分支。風(fēng)力發(fā)電機(jī)的葉片在風(fēng)中的轉(zhuǎn)速每分鐘只有二十轉(zhuǎn)左右，但發(fā)電機(jī)發(fā)電需要每分鐘上千轉(zhuǎn)的轉(zhuǎn)速，因此需要通過增速箱增速來達(dá)到發(fā)電機(jī)發(fā)電所需要的轉(zhuǎn)速。增速箱是保證風(fēng)力發(fā)電機(jī)具有先進(jìn)性、高可靠性、易維護(hù)性及經(jīng)濟(jì)性的重要部件。因此這就要求增速箱的能夠?qū)崿F(xiàn)高傳動(dòng)比，重量輕，體積小，效率高等特點(diǎn)。而行星齒輪傳動(dòng)是目前所有傳動(dòng)方案中最能實(shí)現(xiàn)這些要求的傳動(dòng)技術(shù)。因此風(fēng)力發(fā)電增速箱常采用行星齒輪傳動(dòng)。常見的有兩級2K-H (NGW)型行星傳動(dòng)加一級定軸傳動(dòng)組合，一級2K-H (NGW)型行星傳動(dòng)加兩級定軸傳動(dòng)組合，一級雙聯(lián)(NW)型行星傳動(dòng)加一級定軸傳動(dòng)組合。本文就是采用一級雙聯(lián)行星傳動(dòng)加一級定軸傳動(dòng)組合，它的徑向和軸向尺寸都較小。本設(shè)計(jì)以1.5MW風(fēng)力發(fā)電機(jī)增速箱為對象，分析其傳動(dòng)方案包括結(jié)構(gòu)形式、進(jìn)行傳動(dòng)比的優(yōu)化分配以及關(guān)鍵零部件的詳細(xì)設(shè)計(jì)，并應(yīng)用AutoCAD軟件繪制傳動(dòng)升速箱的裝配圖，寫出升速箱的設(shè)計(jì)說明書。


關(guān)鍵詞: 風(fēng)能　風(fēng)力發(fā)電增速箱 行星齒輪傳動(dòng) 優(yōu)化










ABSTRACT

Nowadays，the worldwide energy resources are intension and many countries focus on environmental protection.So improving the energy utilization efficiency and developing the renewable energy are two important parts.Wind energy is one of the new and renewable resources that have the good favorable development prospect. With the development of the exploitation and utilization of wind energy，the wind power generation technology also has the marked progress and becomes an embranchment of energy technology. The rotation speed of wind turbine's leaf blade is only about twenty rpm，but the electric generator needs thousands of rounds per minute.Therefore it needs a speed-increase gearbox. The speed-increase gearbox is the important part of the wind power generation ,which makes the wind power generation advanced, high reliability,easy maintainability and economy. Accordingly,it demands that the speed-increase gearbox can implementation high gear ratio, light weight, small size and high reliability. At present the planetary gear transmission is the best choice.So the planetary gear transmission is usually adopted at the speed-increase gearbox of wind power generator. The representative transmission schemes are two 2K-H (NGW type)planetary gear transmission combining with a fixed axis gear transmission，a 2K-H (NGW type )planetary gear transmission combining with two fixed axis gear transmission and a duplex planetary gear(NW type)transmission combining with a fixed axis gear transmission. This article adopts the duplex planetary gear transmission combining with a fixed axis gear transmission. Both the radial and the axial sizes of it are small. This article researches the speed-increase gearbox of 1.5MW wind power generator. In this article, we analyze the transmission scheme including structural style , optimize the transmission ratio and design the key parts in detail. The assembly diagram of the speed-increase gearbox and the design specifications of the transmission system are provided.


Key words: wind energy, the speed-increase gearbox of the wind turbine generator, the planetary gear transmission,optimization



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