新型Hy-Vo齿形链多元变异设计方法及其疲劳可靠性试验研究

发布时间：2018-05-01 12:31

本文选题：Hy-Vo齿形链 + 多元变异　；参考：《吉林大学》2013年博士论文

【摘要】：Hy-Vo齿形链是齿形链产品中的一种重要类型，具有高速性能好，承载能力强，耐磨性好等优点。由于Hy-Vo齿形链的“变节距”在啮合过程中能够显著减少传动中的多边形效应、降低传动噪声，因而近年来广泛应用于汽车变速箱、分动箱、汽轮机工业泵等高速传动中。齿形链按照啮合机制的不同主要分为外啮合机制Hy-Vo齿形链、内-外复合啮合机制Hy-Vo齿形链和外啮合+内-外复合啮合机制Hy-Vo齿形链。本论文是在国家自然科学基金项目“基于多元变异的新型Hy-Vo齿形链啮合设计理论（50975117）”和“基于复杂约束边界条件下的多轴高速齿形链系统啮合设计理论”（51275207）以及国家高技术研究发展计划项目（863）“基于复杂多元变异的Hy-Vo齿形链数字化方法研究及平台开发（2009AA04Z109）”的资助和支持下，对Hy-Vo齿形链的啮合机理进行了深入的研究，并针对Hy-Vo齿形链的多元变异特性进行了通用设计方法的研究，同时研究了其啮合设计体系、动力学仿真技术、导板设计方法以及疲劳试验方法。论文在分析比较Hy-Vo齿形链分类及不同啮合机制的基础上，针对Hy-Vo齿形链啮合机制变异、形状变异、参数变异等变异特性进行了系统的研究，基于学科与行业技术发展趋势，首次提出多元变异的概念，并指出以啮合机制与传动特性变异为主体的多元变异过程，就是Hy-Vo齿形链产品系列创新升级的过程，也是行业需求和技术进步的必然趋势。论文在分析研究链轮滚刀与链轮滚切原理的基础上，根据Hy-Vo齿形链与链轮的啮合原理，首次构建了基于多元变异的Hy-Vo齿形链啮合设计体系，并指出将Hy-Vo齿形链工作链板齿形视为滚刀法向齿形，是建立Hy-Vo齿形链-链轮-刀具齿条的啮合设计体系的基本条件。通过分析Hy-Vo齿形链与链轮的啮合原理，首次提出Hy-Vo齿形链相邻工作链板的基准圆圆心连线延长线的交点位于齿槽对称中心线上是实现Hy-Vo齿形链正确啮合定位的必要条件，这与套筒滚子链传动以及齿轮传动的正确啮合条件是根本不同的。论文以同一规格、同一节距的两种变异HV3型非圆形基准孔的内-外复合啮合Hy-Vo齿形链为例，通过设计计算与分析，并提出在满足Hy-Vo齿形链-链轮-刀具齿条三者正确啮合的条件下，可以通过多元变异手段，设计出参数不同的一族新型传动，以满足众多主机不同的“个性化”需求。同时，通过两种链条系统的平稳传动试验结果表明，基于多元变异的Hy-Vo齿形链设计方法是科学的，切实可行的。并提出多元变异设计方法是实现Hy-Vo齿形链产品创新升级和知识产权保护的重要手段。论文在参考精密滚子链疲劳可靠性试验方法的基础上，首次对Hy-Vo齿形链疲劳试验方法进行了研究，并提出了为节约试验时间，可提高一个载荷系数等级获得24F-N方法试验数据；提高试验载荷后的疲劳寿命曲线相比未提高试验载荷的曲线要保守一些。通过对比研究14F-N方法和24F-N方法，提出粗估链条寿命时，可采用14F-N方法并提高一个载荷系数；R=50%的R-F-N曲线可以由14F-N方法获得；14F-N方法和24F-N方法所得到的疲劳寿命曲线形式基本一致。论文同时对新型Hy-Vo齿形链进行了疲劳试验研究，结果表明链条在满足抗拉强度要求的情况下，不一定能够满足疲劳性能要求，证明研究链条疲劳寿命的重要性。论文在分析齿形链导板的作用及导板对Hy-Vo齿形链装配及受力影响的基础上，通过对Hy-Vo齿形链导板的研究，首次提出了Hy-Vo齿形链导板的设计方法，并进行了有限元分析和试验研究。研究发现，在不影响导板抗拉强度的条件下，，蝴蝶状导板腰部上端圆弧半径RG越大越好；在满足导板抗拉强度的条件下，尽量减小HG的高度，如果中间圆弧最低点高于销轴中心连线，应适当加大两者之间的距离。研究结果表明Hy-Vo齿形链可以通过设计合理的蝴蝶状导板在拉伸过程中的变形来补偿间隙。同时研究成果应用于工程实际，给相关行业带来了良好的经济效益。论文在分析多体动力学接触搜索算法的理论基础上，采用Recurdyn动力学仿真软件，针对多元变异设计方法设计出的三种不同链板型式组合的新型Hy-Vo齿形链进行了多链节的运动学和动力学仿真分析。仿真结果表明，采用多元变异设计方法获得的Hy-Vo齿形链，通过不同啮合机制链板的有序组合，可以根据用户的个性化需求派生出多种Hy-Vo齿形链新产品。通过分析研究三种Hy-Vo齿形链的多边形效应变化规律发现，在一定范围内，新型Hy-Vo齿形链中内-外复合链板数越多，多边形效应越小，且有序排列的新型Hy-Vo齿形链综合性能要优于纯外啮合机制Hy-Vo齿形链和纯内-外复合啮合机制Hy-Vo齿形链。通过分析研究新型Hy-Vo齿形链的动态接触响应发现，同一新型Hy-Vo齿形链在同一时间和同一水平位置时，同一链板所对应的两对销轴的接触力并不相同，因此不能简单的通过分析一个链节的受力，判断其它链节的受力情况，为Hy-Vo齿形链动力学研究提供了重要的理论指导。
[Abstract]:Hy-Vo tooth chain is an important type of tooth chain products. It has the advantages of high speed performance, strong bearing capacity and good wear resistance. Because the "pitch" of the Hy-Vo tooth chain can reduce the polygon effect in the transmission and reduce the transmission noise in the meshing process, so it has been widely used in automobile gearbox, shunt box and steam in recent years. In high speed transmission, such as turbine industrial pump, the tooth chain is divided into Hy-Vo tooth chain of outer meshing mechanism according to the difference of meshing mechanism, internal and external meshing mechanism Hy-Vo tooth chain and outer meshing + inner outer composite meshing mechanism Hy-Vo tooth chain.
This paper is based on the National Natural Science Foundation Project "new Hy-Vo tooth chain meshing design theory based on multivariate variation (50975117)" and "multi axis high-speed tooth chain system meshing design theory based on complex constrained boundary conditions" (51275207) and national high-tech research and development project (863) "based on complex multivariate variation. With the support and support of the digital method of Hy-Vo tooth chain and the support of platform development (2009AA04Z109), the meshing mechanism of the Hy-Vo tooth chain is deeply studied. The general design method of the multiple variation characteristics of the Hy-Vo tooth chain is studied. At the same time, the meshing design system, the dynamic simulation technology and the guide plate setting are studied. Method and fatigue test method.
Based on the analysis and comparison of the Hy-Vo tooth chain classification and the different meshing mechanism, this paper systematically studies the variation characteristics of Hy-Vo tooth chain meshing mechanism variation, shape variation, parameter variation and so on. Based on the development trend of discipline and industry technology, the concept of multiple variation is proposed for the first time, and the variation of meshing mechanism and transmission characteristics is pointed out. The process of multivariate variation is the process of innovation and upgrading of Hy-Vo toothed chain products, and it is also an inevitable trend of industry demand and technological progress.
On the basis of analyzing the principle of sprocket hob and sprocket rolling, according to the meshing principle of Hy-Vo tooth chain and sprocket, the Hy-Vo tooth chain meshing design system based on multiple variation is constructed for the first time, and it is pointed out that the tooth shape of Hy-Vo tooth chain work chain plate is regarded as the normal tooth shape of the hob, and it is the meshing of the Hy-Vo tooth chain chain wheel tool rack. By analyzing the basic conditions of the design system, by analyzing the meshing principle of the Hy-Vo tooth chain and the sprocket, it is the first time that the intersection point of the reference circular line extension line of the adjacent working chain plate of the Hy-Vo tooth chain is located on the symmetric center line of the alveolus, which is the necessary piece to realize the correct meshing and positioning of the Hy-Vo tooth chain, which is with the sleeve roller chain transmission and the gear transmission. The correct meshing conditions are fundamentally different.
In this paper, an example of the internal and external meshing Hy-Vo tooth chain of two variant HV3 non circular datum holes with the same specification and the same pitch is taken as an example. Through the design calculation and analysis, it is proposed that under the conditions of satisfying the correct meshing of the three parties of the Hy-Vo tooth chain chain wheel tool rack, a new type of new transmission with different parameters can be designed. In order to meet the different "personalized" needs of many hosts, the test results of the smooth transmission of two chain systems show that the design method of Hy-Vo tooth chain based on multivariate variation is scientific and feasible. It is proposed that the multiple variant design method is to realize the innovation and upgrade of Hy-Vo tooth chain products and the protection of intellectual property rights. Take the means.
On the basis of the fatigue reliability test method of precision roller chain, the paper studies the Hy-Vo tooth chain fatigue test method for the first time, and puts forward that the test data of 24F-N method can be obtained by increasing a load coefficient grade for saving test time, and the fatigue life curve after the test load is raised, compared with that of not increasing the test load. The curve should be conservative. By comparing the 14F-N method and the 24F-N method, the 14F-N method can be used and a load coefficient can be improved when the chain life of the chain is estimated. The R-F-N curve of the R=50% can be obtained by the 14F-N method, and the fatigue life Qu Xianxing formula obtained by the 14F-N method and 24F-N method is basically the same. The paper also has a new Hy-Vo tooth shape at the same time. The chain has been tested by fatigue test. The results show that the chain can not meet the requirements of fatigue performance and proves the importance of studying the fatigue life of chain when the chain satisfies the requirement of tensile strength.
On the basis of the analysis of the role of the tooth chain guide plate and the influence of the guide plate on the assembly and the force of the Hy-Vo tooth chain, the design method of the Hy-Vo tooth chain guide plate is first proposed by the study of the Hy-Vo tooth chain guide plate, and the finite element analysis and experimental study are carried out. The study finds that the butterfly shape is not affected by the tensile strength of the guide plate. The larger the radius RG of the upper end of the guide plate is, the better the better, and the height of the HG is reduced as much as possible to meet the tensile strength of the guide plate. If the middle arc lowest point is higher than the central line of the pin axis, the distance between the two can be appropriately increased. The results show that the Hy-Vo tooth chain can be changed by setting a reasonable butterfly guide plate during the stretching process. The research results are applied to engineering practice, and bring good economic benefits to related industries.
On the basis of analyzing the theory of multi-body dynamic contact search algorithm, the paper uses Recurdyn dynamic simulation software to analyze the kinematic and dynamic simulation of the multiple chain joints of three different chain plate types designed by multiple variant design methods. The simulation results show that the multiple variant design side is used. The Hy-Vo tooth chain obtained by the method, through the orderly combination of different meshing mechanism, can derive a variety of new products of Hy-Vo tooth chain according to the personalized needs of the users. Through the analysis and study of the change rule of the polygon effect of the three Hy-Vo toothed chains, the number of internal and external composite chain plates in the new type Hy-Vo tooth chain is more, and the more the number of inner and outer composite chain plates in the new type of tooth chain is found. The smaller the edge shape effect is, the comprehensive performance of the new Hy-Vo tooth chain is better than that of the pure outer meshing mechanism Hy-Vo tooth chain and the pure inner outer composite meshing mechanism Hy-Vo tooth chain. The contact force of the two pairs of pin axes is different, so we can not simply analyze the force of a chain and determine the stress of other links, which provides important theoretical guidance for the study of the dynamics of Hy-Vo tooth chain.

【学位授予单位】：吉林大学
【学位级别】：博士
【学位授予年份】：2013
【分类号】：TH132.45

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