【摘要】：蝸桿砂輪磨是廣泛應(yīng)用于中小模數(shù)齒輪的批量精加工方法,但在實際加工過程中,蝸桿砂輪磨齒易在齒向形成規(guī)則的平行齒面紋理,從而增大了齒輪的嚙合噪聲。分析磨削過程中蝸桿砂輪與齒輪的接觸特性,建立了嚙合方程和接觸點方程,闡述了接觸跡構(gòu)成整個齒面的機理;分析蝸桿砂輪磨齒的磨削特性,建立瞬時接觸點的磨削速度和形狀模型,計算磨粒在齒面上的磨削路徑,分析磨削特性對齒面微觀幾何結(jié)構(gòu)的影響,得到齒面的整體紋理模型;結(jié)合齒面紋理與噪聲激勵的關(guān)系,分析出齒面規(guī)則紋理對齒輪噪聲的影響機理,提出按照正弦函數(shù)變化的沖程變速蝸桿砂輪磨齒加工方法;進行了蝸桿砂輪磨削常規(guī)加工與變沖程速度加工的對比試驗,結(jié)果表明,該方法加工的齒面接觸點位置具有一定的隨機性,形成不規(guī)則的齒面紋理,不同轉(zhuǎn)速下齒輪嚙合噪聲聲壓級總值減小約3.5 d B,已經(jīng)達到改善齒面紋理的效果。
[Abstract]:Worm grinding wheel grinding is a batch finishing method widely used in medium and small modular gears, but in the process of actual processing, worm grinding wheel grinding teeth are easy to form regular parallel tooth surface texture in the tooth direction, thus increasing the meshing noise of gear. The contact characteristics of worm wheel and gear during grinding are analyzed, the meshing equation and contact point equation are established, and the mechanism of the contact trace forming the whole tooth surface is expounded. The grinding characteristics of worm grinding wheel are analyzed, the grinding speed and shape model of instantaneous contact point are established, the grinding path of abrasive particles on tooth surface is calculated, and the influence of grinding characteristics on the micro geometric structure of tooth surface is analyzed, and the overall texture model of tooth surface is obtained. According to the relationship between tooth surface texture and noise excitation, the influence mechanism of tooth surface regular texture on gear noise is analyzed, and the grinding method of variable speed worm grinding wheel according to sinusoidal function is put forward. The contrast test between conventional grinding and variable stroke speed machining with worm grinding wheel is carried out. The results show that the contact point position of tooth surface machined by this method has certain randomness, resulting in irregular tooth surface texture. The total noise-pressure level of gear meshing is reduced by about 3.5 dB at different rotational speeds, which has achieved the effect of improving the tooth surface texture.
【作者單位】： 重慶大學(xué)機械傳動國家重點實驗室;
【基金】：國家科技支撐計劃(2014BAF08B02) 國家自然科學(xué)基金(51375512)資助項目
【分類號】：TG616

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1 謝文乾;;解決齒面磨裂的途徑[J];機械工藝師;1984年04期

2 呂永順;;大齒圈齒面淬火[J];機械工人熱加工技術(shù)資料;1978年04期

3 溫松明;曹躍軍;張軍偉;;插齒齒面擠傷原因的探討[J];機械工藝師;1984年12期

4 溫松明,洪學(xué)勤,雷年生;插齒齒面擠傷原因的進一步探討[J];湖南大學(xué)學(xué)報;1985年04期

5 蘭正洲;;分度磨胎[J];機械工人(冷加工);1984年06期

6 鄒新成;提高插內(nèi)齒齒面光潔度的體會[J];工程機械;1984年07期

7 S惾，

本文編號：2323856