锻压技术

基于数值模拟的齿轮冷精整齿向精度预测

英文标题：Accuracy prediction of gear direction in cold sizing based on numerical simulation

单位：1. 重庆理工大学 2. 重庆理工大学机械工程学院 3. 重庆众联齿轮传动有限公司 4. 重庆理工大学车辆工程学院

分类号：

出版年,卷(期):页码：2016,41(1):52-56

摘要：

应用Deform-3D软件对载重汽车用直齿圆柱齿轮进行了挤压成形后的冷精整工艺数值模拟分析，得到了不同精整量下齿轮的齿向误差，进一步总结出精整量对齿向误差的影响规律，并预测出最佳精整量。模拟结果显示齿轮齿向误差随着精整量的增加先减小后变大，当精整量为0.15 mm时齿向误差最小为0.026 mm,此时齿向精度为8级。针对模拟结果进行了冷精整工艺试验并对精整件进行了齿向精度检测，检测结果表明精整后可将齿向精度由11级提高到为8级，此结果与模拟得到的预测结果相一致。

The cold sizing process after cold extrusion process of straight spur gear which used for camion was numerically simulated by software Deform-3D, and the gear direction deviations under different sizing amounts were obtained. Further, the influential regularity of sizing amount on gear direction deviation was summed up, and the suitable sizing amount was predicted. The simulation results show that gear direction deviation decreases first and then increases with the increasing of sizing amount. When the sizing amount is up to 0.15 mm， the minimum gear direction deviation is 0.026 mm and the magnitude of accuracy is level 8. The experiment of cold sizing process was carried out according to the simulation results, and the accuracy of cold sizing product was detected. Detection results show that after cold sizing the magnitude of gear direction accuracy increases from level 11 to level 8, which is consistent with the simulation result.

基金项目：

重庆市科委资助项目（cstc2014yykfA60001）;重庆市教委科学技术研究资助项目（KJ1400944）

冯文杰（1964-），男，硕士，教授

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