共查询到20条相似文献,搜索用时 69 毫秒
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使用Solidworks对减速机箱体建模,并模拟减速机的工作状态,在Ansys Workbench环境下进行了静强度分析.完成了对减速机箱体的优化设计,经过减速机的实际使用,证明了该有限元仿真和分析方法的可靠性. 相似文献
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对某搅拌机配套使用的减速机齿轮轴损坏原因进行了分析,结果表明,齿轮轴的显微组织、渗层深度和硬度均符合要求,减速机齿轮轴破坏属于纯机械过载损坏.通过机械强度校核计算,判定减速机齿轮轴纯机械过载损坏的主要原因是机械强度不能满足要求,因此,建议对减速机重新选型,使其机械强度满足搅拌机工况要求. 相似文献
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根据锻造操作机的工作特点,提出了钳杆旋转减速机和大车行走减速机载荷的计算方法,对减速机的相关设计问题进行了讨论,并介绍了具体应用实例及应注意的事项. 相似文献
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时重型刮板输送机传动装置中减速机、链轮、闸盘的结构进行分析,提出用进口减速机代替国产减速机以及改进链轮、闸盘结构的具体措施,从而达到提高刮板输送机中传动装置的可靠性. 相似文献
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介绍了国内首次制造大型分流式穿孔机主减速机的全部过程,该减速机采用了双均载设计、制造、装配技术;文章中具体分析了该减速机在制造、装配过程中存在的主要问题,并提出相应解决方案。 相似文献
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宝山钢铁股份有限公司钢管分公司的穿孔机下辊主减速机在大定修前,减速机轴和下辊大电机的振动情况严重,诊断部门对该减速机进行了测振分析,结合对电机振动、减速机振动的频谱分析和对轴承的故障频率成分分析,找出了主减速机振动的原因是轴承损伤。该分析结果与解体检查的结果相一致。 相似文献
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扫描电镜观察显示胫骨是一种由羟基磷灰石和胶原蛋白组成的自然生物陶瓷复合材料.羟基磷灰石具有层状的微结构并且平行于骨的表面排列.观察也显示这些羟基磷灰石层又是由许多羟基磷灰石片所组成,这些羟基磷灰石片具有长而薄的形状,也以平行的方式整齐排列.基于在胫骨中观察到的羟基磷灰石片的微结构特征,通过微结构模型分析及实验,研究了羟基磷灰石片平行排列微结构的最大拔出能.结果表明,羟基磷灰石片长而薄的形状以及平行排列方式增加了其最大拔出能,进而提高了骨的断裂韧性. 相似文献
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论述了CAD技术中参数化设计的三种建模方法,重点介绍了基于特征的参数化建模原理。在此基础上,分析机械设计中的机构结构,归纳出其零件的几何特征构成。设计了机构CAD图形库,并提出了该图形库生成步骤和人机交互界面。 相似文献
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采用激光辐照对FeCrAlW电弧喷涂层的组织进行致密化处理,借助扫描电镜和X衍射对涂层的组织进行了分析.测试了涂层的显微硬度.结果表明:涂层组织致密度提高,孔隙率明显降低.随着激光扫描速度的增加,涂层的显微硬度降低.在较低的扫描速度下,涂层与基体之间形成互熔区,涂层与基体之间产生良好的冶金结合. 相似文献
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C. Colinet 《Intermetallics》2003,11(11-12):1095
A large number of ab-initio calculations of energies of formation of intermetallic compounds have been performed in the last 15 years. The currently used methods are listed. The paper presents a review of the aluminium based compounds which have been studied. Comparisons of calculated and experimental enthalpies of formation are provided for aluminim-3d and-4d transition metal alloys at equiatomic composition. The modelling of the enthalpies of mixing of solid solutions based on a given lattice is described. 相似文献
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O. N. Vlasova N. N. Korneeva V. I. Eremenko O. Kh. Fatkullin N. M. Semenova S. N. Petrova D. D. Vaulin 《Metal Science and Heat Treatment》1991,33(12):924-931
Conclusions To provide a high level of mechanical properties in wrought blanks of cast ÉP741NP and ÉP962 alloys it is necessary to form controlled structures. A necklace-type structure formed in homogenizing isostatic treatment, subsequent thermomechanical working including alternation of the operations of deformation in the (+)-area and recrystallization anneals, and final heat treatment is preferable. The temperature conditions of all stages of thermomechanical working are strictly controlled, especially the final operation of deformation and heating for hardening. To eliminate hardening cracks and distortions it is necessary to use molten salts at t=600°C as quenchants. The use of multiple production operations makes it possible to significantly reduce the structural inhomogeneity related to inhertance of the original dendritic structure. However, the structure of the final semifinished product is nevertheless characterized by a difference in occurrence of the processes of polygonization and recrystallization between the former dendritic cells and the interdendritic spaces in deformation and heat treatment.To obtain structurally homogeneous blanks for gas turbine engine parts it is necessary to use basically new methods of remelting such as vacuum double electrode remelting and electron beam remelting with an intermediate vessel.Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 12, pp. 25–29, December, 1991. 相似文献