期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
控制大平面砂轮磨削面锥形误差提高齿轮螺旋线精度 被引量:2
1
作者 凌四营 王立鼎 +2 位作者 马勇 王晓东 娄志峰 《光学精密工程》 EI CAS CSCD 北大核心 2010年第3期630-637,共8页
为了研制高精度标准齿轮,以Y7125磨齿机为例分析了大平面砂轮磨削面锥形误差对齿轮螺旋线偏差的影响。建立了磨削的几何模型,推导出了影响量的数学表达式。理论分析结果显示,砂轮与齿面有效接触宽度对齿轮螺旋线形状偏差的影响不大,而... 为了研制高精度标准齿轮,以Y7125磨齿机为例分析了大平面砂轮磨削面锥形误差对齿轮螺旋线偏差的影响。建立了磨削的几何模型,推导出了影响量的数学表达式。理论分析结果显示,砂轮与齿面有效接触宽度对齿轮螺旋线形状偏差的影响不大,而随着被磨齿轮齿宽的加大,对齿轮螺旋线形状偏差的影响系数会显著增大;砂轮磨削面锥形误差使被磨齿轮螺旋线偏差曲线呈弧形,且弧度从齿根到齿顶逐渐增大。最后通过一实例进行了误差测量、磨齿实验与偏差分析。研究结果表明,控制大平面砂轮磨削面的锥形误差在2.7′以内可满足加工1级螺旋线精度齿轮的加工要求。 展开更多
关键词 标准齿轮 大平面砂轮 磨削面 锥形误差 螺旋线偏差 误差分析
下载PDF
Effects of Comprehensive Eccentricity of Involute Cam on Gear Profile Deviations 被引量:5
2
作者 WANG Liding LING Siying +2 位作者 MAYong WANG Xiaodong LOU Zhifeng 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2011年第3期392-398,共7页
The manufacturing accuracy of ultra-precision master gears signifies the technological capability of the ultra-precision gear.Currently,there is little report about the manufacturing technologies of ultra-precision ma... The manufacturing accuracy of ultra-precision master gears signifies the technological capability of the ultra-precision gear.Currently,there is little report about the manufacturing technologies of ultra-precision master gears at home and aboard.In order to meet the requirement of grinding ultra precision master gear,the gear grinder with flat-faced wheel Y7125 is chosen as the object machine tool and the geometric model of its precision generating part,the involute cam,is established.According to the structure of the involute cam,the effective working section and its adjustable range of the cam are determined,and the mathematical expressions of the effects of comprehensive eccentricity of the involute cam on gear profile deviations are derived.According to the primary harmonic trends of the deviation curve,it is shown that gear profile form and slope deviations in different work generating sections of the involute cam are different which the latter changes with the cam eccentricity obviously.Then,the issues of extreme values and methods of error compensation are studied and the conclusion that large adjustable range is benefit to search the optimal involute-cam section which is responding to the minimum gear profile deviations is obtained.A group of examples are calculated by choosing master gears with d=120 mm and m=2-6 mm and an involute cam with base diameter djcam =117 mm.And it is found that the maximum gear profile deviation counts for no more than 5% of the cam eccentricity after error compensation.A gear-grinding experiment on the master gear with m=2 mm is conducted by choosing different sections of the involute cam and the differences of gear profile deviations then the existence of the cam eccentricity are verified.The research discloses the rule of gear profile deviations caused by the comprehensive eccentricity of the involute cam and provides the theoretical guidance and the processing methods for grinding profile of the ultra precision master gear. 展开更多
关键词 gear grinder with flat-faced wheel involute cam ultra precision master gear gear profile deviations error compensation
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部