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针对手工装配汽车轮毂轴承生产效率低,装配质量难以保证等缺陷,设计了夏利轿车前轮毂轴承的自动装配流水线。 相似文献
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为适应汽车工来的发展,国外轴承公司开发了高寿命和高可靠性的汽车发动机水泵轴承系列,介绍了NSK、SKP和KOYO公司关于水泵轴承的结构设计,径向游隙和密封圈结构的设计及轴承材料的润滑脂的选用。 相似文献
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通过分忻旧内外汽车轮毂轴承产品结构特征和参考目前国内角接触球轴承结构设计方法,探讨了功能模块化设计方法在系列汽车轮投轴惬产舳内部结构设计中的应用,体现了轴承系列化产品结构设计中“零件标准化、部件通用化、产品系列化”的设计思路。 相似文献
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从轴承用户的角度探讨国内外汽车轴承的质量差距 ,具体分析轴承旋转精度、寿命、可靠性、振动值的差异 ,介绍各种汽车轴承的使用条件和发展趋势 ,并给国内汽车轴承的生产企业提出了一些建议。 相似文献
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对汽车主要部位所用的轴承的现状和发展趋势作了介绍,若干新结构轴承在国外一些先进车型上得到了应用,如水泵轴承单元,发动机用陶瓷轴承,套圈采用钢板冲压成形,渗碳淬火和离合器分离轴承,变速箱用塑料保持架滚针轴承、有装球缺口的深沟球轴承和E型圆柱滚子,传动轴轴承组件,橡胶密封万向节滚针轴承,等速万向节以及轮毂轴承等。附图14幅,参考文献2篇。 相似文献
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The government has required that engine oil viscosity be lowered and that highly refined base stocks be used in engine oils, with the aim of promoting low fuel consumption and developing long-life oils.To improve the reliability of automobile plain bearings by means of engine oils, we have developed a bearing test apparatus that uses a half-metal. Oil can be supplied through the oil supply port in the same way as in actual engines. In this apparatus, variable loads can be applied to the opposite side of the oil supply hole of the bearing by hydraulic pressure that is synchronized with the rotational speed of the shaft. The influence of the base stocks used for engine oils on the contact between the rotating shaft and the bearing metal, and on the bearing rotating torque generated by rotation of the shaft, were investigated.We found that the contact ratio and the bearing rotating torque varied with different types of base stock compositions, even if the base stocks had the same viscometric properties. Therefore, it is necessary to develop countermeasures to avoid adverse effects when lowering engine oil viscosity and using highly refined base stocks. 相似文献
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针对汽车离合器轴承外圈壁厚小、结构复杂、加工精度高的问题对车加工工艺、刀具、夹具进行了一系列改进,保证了产品质量,满足了用户要求。 相似文献