从结构和工作原理方面对玉米收获机两种常用主传动离合器进行了介绍和对比分析,依据分析结论提出了相关选用建议.

列出了收割机摩擦片式离合器产品质量问题的常见故障现象;针对故障原因进行了分析;并相应提出改进措施.

针对机身较窄的3行玉米机预判会出现因稳定性不足会发生机架较大变形的情况.对3行窄机身玉米机架的刚性进行CAE计算分析,以判定变形位移情况并提出改进方案做适当改进,并对改进方案的应力和变形位移再次计算确认.

指出了收割机中间轴机构存在的质量问题现象,分析了问题原因,针对问题提出了问题排查及校核方法与步骤.

介绍了联组带在收获机械中的使用特点,分析了收割机联组带实际使用中存在的主要质量问题及原因,提出了相关技术要求及改善措施与建议.

通过采用先进的CAE有限元设计分析方法,对玉米收获机底盘行走变速箱固定板的结构进行计算分析,找出薄弱问题,制定改进方案并验证.

以适用型玉米收获有L驱动轮轮辑强度的CAE设计为例,简要介绍零部件 CAE强度设计的方法与步骤.

以一项新产品成功开发项目为例,阐述了产品项目成功开发需要关注的核心要素,供农机界的同仁们参考讨论和共勉.

Based on UG NX 7.5 software,detailed description of the compressor air valve components parameterized template design process and method of use,Mainly introduced the parametric 3D entity modeling process templates,by means of taking the compressor valve components’ s seat parts as an example to apply the soft’ s expression tool.

The basic theory of Experimental Mode Analysis(EMA)and the Least Squares Frequency Domain method(PolyMax method) was introduced.A hammering-impulse model test was carried on the accumulator lead-plate of harvester.The Frequency Response Function(FRF) of the accumulator lead-plate was achieved with LMS Test.Lab software under the H(v) estimator.The results of PolyMAX and least squares complex exponent method(LSCE method) were compared and analyzed.The PolyMax method in the experimental model analysis of an accumulator lead-plate was introduced to improve the accuracy of the modal analysis.By comparing the result of the experiment modal test and excitation vibration frequency spectrum of the accumulator in the working condition,the reason of the malfunction was found out and the improvement was given.