鼓形齿联轴器鼓度曲线选型优化比较分析

发布时间：2018-02-23 20:37

本文关键词： 鼓形齿联轴器鼓度曲线啮合分析轴间倾角　出处：《机械传动》2017年10期 　论文类型：期刊论文

【摘要】：外齿鼓度曲线的选型及参数对鼓形齿联轴器啮合特性有着重要的影响,其决定了鼓形齿联轴器的最大允许轴间倾角及啮合性能。采用几何分析方法,建立了4种不同类型的鼓度曲线即圆弧曲线、椭圆曲线、双曲线和三段圆弧曲线,计算不同轴间倾角对应的内外齿齿面的最小间隙、接触点位置、允许最大轴间倾角和重合度,比较4种不同类型的鼓度曲线即圆弧曲线、椭圆曲线、双曲线和三段圆弧曲线的啮合特性。结果表明,各种鼓度曲线中间曲率半径分别在50 mm~90 mm和90 mm~130 mm的取值范围内,每增加20 mm,相应的最大允许轴间倾角差值分别减小0.2°和0.1°左右;三段圆弧曲线可允许轴间倾角最大且对应接触点轴向位移量最小。轴间倾角大于1.3°,中间位置曲率半径相同时,三段圆弧对应的齿面法向最小间隙曲线明显更平缓,啮合重合度更高。
[Abstract]:The selection and parameters of the external tooth drum curve have an important influence on the meshing characteristics of the drum tooth coupling, which determines the maximum allowable shaft inclination and meshing performance of the drum tooth coupling. Four different types of drum curves, namely, arc curve, elliptic curve, hyperbolic curve and three-section arc curve, are established to calculate the minimum clearance, contact point position, maximum inclination angle and coincidence degree of the tooth surfaces corresponding to different inclination angles between axes. The meshing characteristics of four different types of drum curves, that is, arc curve, elliptic curve, hyperbolic curve and three-segment arc curve, are compared. The results show that the radius of middle curvature of these curves is in the range of 50 mm~90 mm and 90 mm~130 mm, respectively. For each increase of 20 mm, the corresponding maximum allowable angle of inclination is reduced by 0.2 掳and 0.1 掳, respectively, and the maximum angle of inclination between axes and the minimum axial displacement corresponding to the contact point can be obtained by three-section arc curve. When the angle of inclination between axes is greater than 1.3 掳and the radius of curvature of the middle position is the same, The normal minimum clearance curve of the tooth surface corresponding to the three-segment circular arc is obviously more smooth and the degree of meshing coincidence is higher.
【作者单位】：西南交通大学牵引动力国家重点实验室;中国铁道科学研究院机车车辆研究所;
【分类号】：TH133.4

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