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辗扩工艺生产汽车后桥从动锥齿轮锻坯的应用实践 总被引:2,自引:0,他引:2
本文根据辗扩成形汽车后桥从动锥齿轮坯铅试件的网格试验所揭示的变形区微单元应变状态,论述了这种阶梯孔环形件辗扩变形的特征;设计了辗扩用孔型及预制坯;进行了力能校核的实例计算;阐述了辗扩工艺生产汽车后桥从动锥齿轮锻坯的应用情况,并与模锻工艺生产该件的经济技术指标进行了比较。 相似文献
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分析了EQ140型汽车差速器从动齿轮锻件辗扩变形特点和辗扩用毛坯设计中的主要问题,阐明了辗扩用毛坯优选法设计的原理和计算过程,应用优选法指导EQ140型汽车差速器从动齿轮扩工艺试验,可使试验次数大为减少。 相似文献
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文章介绍了黄河客车后桥从动锥齿轮在无大型模锻设备的情况下,利用自由锻锤,分步成形,减少负荷,精化毛坯,达到小设备干大活的目的,为同类锻件的锻造开辟了一条新的途径。 相似文献
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德兴市某单位来我厂维修东风EQ1090E型车的后桥,检查后发现,主、从动锥齿轮损坏,更换了一对新齿轮,然后加入自备的所谓“双曲线齿轮油”。当行驶到200km左右时,后桥发生异响,行驶到400km左右异响严重。只好拆下检修,发现主动锥齿轮的牙齿磨成刀刃,从动锥齿轮也近似刀刃,经济损失上千元。为什么会发生这种恶性事故呢? 相似文献
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以东风EQ140型汽车后桥为例,分析客车后桥主从动锥齿轮早期磨损的原因,可供汽车修理行业和汽车驾驶员参考。 相似文献
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故障现象 耗损千余元 邢台市种子公司来我厂维修东风EQ1090E型载货汽车的后桥,检修后发现主动锥齿轮已损坏,只好更换了一对新的主、从动锥齿轮,然后加入了自带的5升从某石油公司购买的所谓“双曲线齿轮油”。当行驶200千米时, 相似文献
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故障现象
某单位1辆东风EQ3141G自卸车主减速器在使用过程中出现异响,将后桥一侧驱动轮用千斤顶顶起后,用手转动驱动轮,发现传动轴与半轴传动之间传动间隙较大.为了进一步确定故障部位,将主减速器动力输入端的传动轴拆卸下来,用手转动主减速器主动锥齿轮轴,发现主从动锥齿轮之间的配合间隙较大,以此判断主减速器主从动锥齿轮可能出现异常磨损. 相似文献
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介绍了准双曲面主动齿轮毛坯锻件工艺现状及毛坯热挤压锻件工艺过程。重点阐述了锻件变形过程、热挤压成形工艺的优点及成形时应注意的几个问题。 相似文献
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Zaigang Chen Wanming Zhai Kaiyun Wang 《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2017,55(2):244-267
A gear transmission system is a key element in a locomotive for the transmission of traction or braking forces between the motor and the wheel–rail interface. Its dynamic performance has a direct effect on the operational reliability of the locomotive and its components. This paper proposes a comprehensive locomotive–track coupled vertical dynamics model, in which the locomotive is driven by axle-hung motors. In this coupled dynamics model, the dynamic interactions between the gear transmission system and the other components, e.g. motor and wheelset, are considered based on the detailed analysis of its structural properties and working mechanism. Thus, the mechanical transmission system for power delivery from the motor to the wheelset via gear transmission is coupled with a traditional locomotive–track dynamics system via the wheel–rail contact interface and the gear mesh interface. This developed dynamics model enables investigations of the dynamic performance of the entire dynamics system under the excitations from the wheel–rail contact interface and/or the gear mesh interface. Dynamic interactions are demonstrated by numerical simulations using this dynamics model. The results indicate that both of the excitations from the wheel–rail contact interface and the gear mesh interface have a significant effect on the dynamic responses of the components in this coupled dynamics system. 相似文献
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利用Pro/E软件构建了PY160平地机后桥齿轮的精确模型,并进行装配.将简化后的装配模型导入ANSYS软件中,建立起非线性接触分析的有限元模型.通过有限元分析,得出后桥输出齿轮齿根最大弯曲应力、轮齿最大接触应力和轮齿在多个啮合位置的应力分布云图,在此基础上对齿轮失效原因进行分析,结果可为齿轮的寿命预估提供参考. 相似文献
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S. M. Park T. W. Park S. H. Lee S. W. Han S. K. Kwon 《International Journal of Automotive Technology》2010,11(1):49-56
In this study, a new concept for a power delivery system is developed. Power Shift Drive (PSD) Axle vehicle modeling and dynamic
movement analysis are performed via simulation. The dynamic vehicle model is constructed from data obtained from the derived
equation, considering the specific characteristics of each part. The model is composed of a torque converter, a gear box,
a differential, hub reduction and an engine, which is the power source of the 1st forward and reverse PSD-Axle. By unifying
the mathematical equations for each component, a mathematical model of the 1st forward gear is derived. The system dynamic
model is created using MATLAB/Simulink based on the mathematical model. Simulation is carried out using Simulink to estimate
the dynamic behavior of the PSD-Axle. In addition, the dynamo test result is used to verify the model. Finally, a successful
model is created. This study will be used to establish the basic conceptual design for the PSD-Axle multi-gear system. 相似文献