面向降噪的蜗杆砂轮磨削齿面纹理改善方法
发布时间：2018-11-10 23:19
【摘要】：蜗杆砂轮磨是广泛应用于中小模数齿轮的批量精加工方法,但在实际加工过程中,蜗杆砂轮磨齿易在齿向形成规则的平行齿面纹理,从而增大了齿轮的啮合噪声。分析磨削过程中蜗杆砂轮与齿轮的接触特性,建立了啮合方程和接触点方程,阐述了接触迹构成整个齿面的机理;分析蜗杆砂轮磨齿的磨削特性,建立瞬时接触点的磨削速度和形状模型,计算磨粒在齿面上的磨削路径,分析磨削特性对齿面微观几何结构的影响,得到齿面的整体纹理模型;结合齿面纹理与噪声激励的关系,分析出齿面规则纹理对齿轮噪声的影响机理,提出按照正弦函数变化的冲程变速蜗杆砂轮磨齿加工方法;进行了蜗杆砂轮磨削常规加工与变冲程速度加工的对比试验,结果表明,该方法加工的齿面接触点位置具有一定的随机性,形成不规则的齿面纹理,不同转速下齿轮啮合噪声声压级总值减小约3.5 d B,已经达到改善齿面纹理的效果。
[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.
【作者单位】： 重庆大学机械传动国家重点实验室;
【基金】：国家科技支撑计划(2014BAF08B02) 国家自然科学基金(51375512)资助项目
【分类号】：TG616
[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.
【作者单位】： 重庆大学机械传动国家重点实验室;
【基金】：国家科技支撑计划(2014BAF08B02) 国家自然科学基金(51375512)资助项目
【分类号】：TG616
【相似文献】
相关期刊论文 前10条
1 谢文乾;;解决齿面磨裂的途径[J];机械工艺师;1984年04期
2 吕永顺;;大齿圈齿面淬火[J];机械工人热加工技术资料;1978年04期
3 温松明;曹跃军;张军伟;;插齿齿面挤伤原因的探讨[J];机械工艺师;1984年12期
4 温松明,洪学勤,雷年生;插齿齿面挤伤原因的进一步探讨[J];湖南大学学报;1985年04期
5 兰正洲;;分度磨胎[J];机械工人(冷加工);1984年06期
6 邹新成;提高插内齿齿面光洁度的体会[J];工程机械;1984年07期
7 S惾，
本文编号：2323856
本文链接：https://www.wllwen.com/kejilunwen/jiagonggongyi/2323856.html
