基于预成形设计和分流技术的锻造螺旋锥齿轮工艺改进和试验

中国机械工程 ›› 2014, Vol. 25 ›› Issue (7): 944-948.

基于预成形设计和分流技术的锻造螺旋锥齿轮工艺改进和试验

高振山1;邓效忠2;陈拂晓2;夏松涛3

1.西北工业大学，西安，710072
2.河南科技大学机械装备先进制造河南省协同创新中心，洛阳，471003
3.洛阳华冠齿轮股份有限公司，洛阳，471003

出版日期:2014-04-10 发布日期:2014-04-11
基金资助:
国家自然科学基金资助项目（51075121）

Process Improvement and Experiments of Spiral Bevel Gear Forgings Based on Preform Design and Divided Flow Cavity Technology

Gao Zhenshan1;Deng Xiaozhong2;Chen Fuxiao2;Xia Songtao3

1.Northwestern Polytechnical University,Xi'an,710072
2.Advanced Machinery and Equipment Manufacturing Synergy Innovation,Henan University of Science & Technology, Luoyang, Henan,471003
3.Luoyang Huaguan Gear Co.,Ltd.,Luoyang,Henan,471003

Online:2014-04-10 Published:2014-04-11
Supported by:
National Natural Science Foundation of China（No. 51075121）

摘要/Abstract

摘要：

齿形充满不充分和成形载荷过大是螺旋锥齿轮锻造近净成形的主要问题。利用弹塑性有限元法模拟螺旋锥齿轮从动轮一火两锻的半闭式锻造过程，提出通过优化预成形件面锥形状以改善轮齿端角隅部位填充不满的现象，运用正交试验优化设计方法，确定预锻件高度、圆弧弦高、圆弧弦角以及圆弧高点离轮齿小端的距离4个工艺因素对轮齿充满程度和成形载荷的影响规律，选出最佳工艺因素组合。在此基础上提出在轮齿小端设计分流腔的模具结构，以进一步改善齿轮小端角隅充满不理想的现象，对比分析两种工艺方案的成形载荷的峰值，分流锻造成形载荷减小了22.45%。在25MN电动螺旋压力机上进行锻造试验。通过数值模拟和试验结果的对比分析，验证了新工艺方案的有效性。

关键词: 锻造螺旋锥齿轮, 预成形优化, 分流腔, 正交试验设计

Abstract:

Difficult gear tooth corner filling and excessive forming load are the main limitations of spiral bevel gear near net shape forging. Based on the elastroplastic finite element method, the spiral bevel gear forging process using semi-closed die was simulated, and an optimized arc surface cone was proposed for improving the unfilled tooth corner. The influence rules of the processing factors including preforrn height, arc chord height, chord angle and the distance between arc peak and the tooth toe, on the tooth corner filling situation and the forming load were revealed. The best combination of processing factors was chosen by orthogonal experimental design. For decreasing the forming load, the die structure with divided flow cavity was designed, from the simulation results, the forming load decreases more than 22.4%. The experiments were carried out using 25MN electric drive screw press. The numerical simulations and experimental results show that the optimized process mentioned herein is effective.

Key words: spiral bevel gear forging; , optimized preform; , divided flow cavity; , orthogonal experimental design

中图分类号:

TG156

高振山, 邓效忠, 陈拂晓, 夏松涛. 基于预成形设计和分流技术的锻造螺旋锥齿轮工艺改进和试验[J]. 中国机械工程, 2014, 25(7): 944-948.

Gao Zhenshan, Deng Xiaozhong, Chen Fuxiao, Xia Songtao. Process Improvement and Experiments of Spiral Bevel Gear Forgings Based on Preform Design and Divided Flow Cavity Technology[J]. China Mechanical Engineering, 2014, 25(7): 944-948.

参考文献

[1]吕炎. 精密塑性体积成形技术[M]. 北京：国防工业出版社，2003.
[2]王华君,华林,夏巨谌. 主动螺旋伞齿轮闭塞挤压成形分析[J]. 农业机械学报, 2006, 37(11): 133-136.
Wang Huajun, Hua Lin,Xia Juchen. Forming Analysis of Closed Die Extrusion for Spiral Bevel Driving Gear of Automotive Final Drive[J]. Transactions of the Chinese Society for Agriculture Machinery, 2006,37(11):133-136.
[3]王华君,孙世为,夏巨谌,等. 螺旋伞齿轮摆动辗压试验[J]. 农业机械学报, 2006, 37(7): 171-173,157.
Wang Huajun, Sun Shiwei,Xia Juchen. Rotary Forging Experiment in Spiral Bevel Driven Gear[J].Transactions of the Chinese Society for Agriculture Machinery, 2006,37(7):171-173,157.
[4]罗善明,方媛. 弧齿锥齿轮精锻成形工艺的数值模拟[J]. 中国机械工程, 2009,20(4): 485-487.
Luo Shanming, Fang Yuan. Numerical Simulation on Precision Forging of Spiral Bevel Gears[J]. China Mechanical Engineering, 2009,20(4):485-487.
[5]罗善明,何旺枝,薛冰,等. 弧齿锥齿轮精锻成形模具磨损特性分析[J]. 机械传动, 2011,35(1): 52-54,65.
Luo Shanming, He Wangzhi, Xue Bing, et al. Analysis of Die Wear for Precision Forging of Spiral Bevel Gear[J].Journal of Mechanical Transmission, 2011,35(1):52-54,65.
[6]李杰,王乐勤,孙青军. 渐开线轮齿的弯曲应力参数化分析[J]. 航空动力学报,2009, 24(2): 470-475.
Li Jie, Wang Leqin, Sun Qingjun. Parameterized Analysis of Bending Stress of Involute Teeth[J]. Journal of Aerospace Power,2009,24(2):470-475.
[7]胡成亮，刘全坤，刘永熙，等. 齿轮锻造金属流动规律分析及工艺改进[J]. 机械工程学报，2008,44(5):187-190.
Hu Chengliang, Liu Quankun, Liu Yongxi, et al. Analysis of Metal Flow and Technology Improvement on Gear Forging[J]. Chinese Journal of Mechanical Engineering, 2008,44(5):187-190.
[8]赵新海，赵国群，王广春，等. 锻造预成形多目标优化设计的研究[J]. 机械工程学报，2002,38(4): 61-64.
Zhao Xinhai, Zhao Guoqun, Wang Guangchun, et al. Multiple Objective Optimal Preform Die Shape Design in Metal Forging[J]. Chinese Journal of Mechanical Engineering, 2002,38(4):61-64.
[9]Song J H, Im Y T. Process Design for Closed-die Forging of Bevel Gear by Finite Element Analyses[J]. Journal of Materials Processing Technology, 2007(192/193):1-7.
[10]Chitkara N R, Kim Y J. Near-net Shape Forging of a Crown Gear: Some Experimental Results and Analysis[J]. International Journal of Machine Tools and Manufacture, 2001,41:325-346.
[11]肖景荣. 精密模锻[M]. 北京：机械工业出版社，1985.
[12]Gao Zhenshan, Deng Xiaozhong, Chen Fuxiao.A Study on Gear Tooth Metal Flowing Law and Process Optimization of Spiral Bevel Gear Forging[J].Advanced Materials Research,2013(753/755):215-220.
[13]栾军. 现代试验设计优化方法[M]. 上海：上海交通大学出版社，1995.
[14]金良超. 正交设计与多指标分析[M]. 北京：中国铁道出版社，1988.
[15]陈魁. 试验设计与分析[M]. 北京：清华大学出版社，2005.
[16]张清萍，赵国群，栾贻国. 齿轮冷精锻工艺预锻模具齿形优化设计[J]. 机械科学与技术, 2004, 23(12): 1487-1490.
Zhang Qinping, Zhao Guoqun, Luan Yiguo. Optimization of Tooth form of Preform Die for Cold Precision Forging of Spur Gear[J]. Mechnical Science and Technology, 2004, 23(12):1487-1490.