|
摘要：
|
|
采用三维有限元数值模拟方法,研究了模数、齿数、螺旋角、压力角等主要结构参数对弧齿锥齿轮精锻成形过程的影响。结果表明,在齿轮其他结构参数不变的情况下,成形载荷及齿根等效应力随模数、齿数的增加而增加,而螺旋角和压力角的变化对成形载荷及齿根等效应力的影响较小。模拟结果可为弧齿锥齿轮精密成形工艺和模具设计提供依据。
|
|
The precision forging process of spiral bevel gears was simulated using 3D FEM. The influences of structure parameters,such as modulus,tooth number,helix angle and pressure angle,on precision forging were also studied. The simulation results indicate that the forging load and equivalent stress of dedendum increase with increase of the modulus and tooth number,while the helix angle and pressure angle have little effect on the forging load and equivalent stress of dedendum as other parameters keep invariable. All the studies may provide the reference for the die design and technology layout of precision forging of spiral bevel gear.
|
|
基金项目：
|
|
国家自然科学基金资助项目(50575071);;
湖南省杰出青年基金资助项目(06JJ10008);;
教育部新世纪优秀人才支持计划(教技函[2007]70号)
|
|
作者简介：
|
|
|
|
参考文献：
|
[1]Choi J C,Choi Y,Tak S J.The forging of helical gears(I):experi ments and upper-bound analysis[J].International Journal of Mechanical Sciences,1997,40(4):325-337.
[2]Sadeghi M H.Gear forging:mathematical modeling and ex-peri mental validation[J].Journal of Manufacturing Science and Engineering,2003,125(4):753-762.
[3]Dean T A.The net-shape forming of gears[J].Materials and Design,2000,21(4):271-278.
[4]Choi J,Cho H Y,Jo C Y.An upper-bound analysis for the forging of spur gears[J].Journal of Materials Processing Technology,2000,104(1):67-73.
[5]陈拂晓,姜开宇,杨永顺,等.直齿轮径向挤压过程变形力规律的数值模拟[J].中国机械工程,1998,9(9):12-14.
[6]张清萍,尚勇,赵国群,等.直齿圆柱齿轮精锻成形过程数值模拟及参数分析[J].中国机械工程,2004,15(17):1546-1548.
[7]胡成亮,刘全坤,王强,等.直齿轮刚性平移两步成形工艺仿真与试验[J].农业机械学报,2008,39(1):161-164.
[8]张猛,赵玉民,黄尚宇,等.螺旋伞齿轮塑性成形实验研究[J].锻压技术,1999,24(1):3-5.
[9]田福祥,王者静,尹德良,等.螺旋伞齿轮精锻新工艺与新型模具结构[J].锻压装备与制造技术,2005,(1):63-65.
[10]舒其复,刘书文,张枫梧,等.螺旋伞齿轮的精锻工艺[J].锻压机械,1988,(2):23-25.
[11]王华君,夏巨谌,孙世为,等.从动螺旋伞齿轮精锻成形数值模拟和实验研究[J].塑性工程学报,2005,12(3):14-17.
|
|
服务与反馈：
|
|
【文章下载】【加入收藏】
|
|
|
|
