齿轮式气动马达结构力学有限元分析

发布时间：2018-03-21 20:30

本文选题：气动马达　切入点：气动钻机　出处：《吉林大学》2011年硕士论文　论文类型：学位论文

【摘要】：煤炭工业是我国国民经济的基础,在我国的一些能源大省,例如山西省,煤炭更是到达了支柱性产业的地位。但是我们也不能不注意到我国煤炭产业面临的一个严重问题“安全事故”,几乎每年都会看到或听到某煤矿发生矿难,造成重大人员伤亡。在痛心的同时我们必须要了解矿难的真正原因,采取相应措施来防止悲剧的发生。安全生产是煤炭开采中的重中之重,在煤炭生产中,造成矿难的原因众多,但高浓度瓦斯可谓是其安全生产的头等隐患。为降低瓦斯的浓度,国内煤炭生产企业广泛应用气动式钻机打孔的方式来抽取矿井深处的瓦斯。因此矿用气动钻机性能的好坏,直接影响到我国煤炭工业的发展。而气动马达又是气动钻机中的核心动力元件,其性能参数直接影响钻机的性能,可谓重中之重。本论文重点针对一种应用比较广泛的齿轮式气动马达,进行了相应参数设计计算,对其进行了重要部件的结构模型的建立,并对其结构力学性能参数进行了相关的有限元分析。本论文首先介绍了气动马达相对于其它马达的优势,以及在国内外的发展概况。简要的阐明了齿轮式气动马达相比其它电动、气动马达的不可替代的优点,以及气动马达在我国的发展历史与现状。通过与国外的气动马达研制作对比,可以看到我国在气动马达的研制领域跟国外还有一定的差距。本文通过对一种安全且通用的齿轮式气动马达的探究,根据齿轮式气动马达的工作原理,进行了其主要参数的设计计算,并对其重要部件进行了安全性校核。在此基础之上,用三维建模软件建立了其主要结构部件的三维模型,并进行了装配,以展现其关键结构的相应位置关系。通过理论计算,校核了齿轮式气动马达中的一些关键零件(齿轮轴、连接平键、马达齿轮)的强度,证明该设计符合理论强度要求。最后为验证本文所设计的齿轮式气动马达是否合格,对其进行静力学和动力学特性的相关分析,使用有限元分析软件对其进行了相关力学的有限元分析,得到了具有一定参考价值的计算数据,为以后的设计优化及生产提供了强有力的保障。通过理论分析、参数计算、模型建立及其有限单元分析,为齿轮式气动马达的合理设计及选择应用,提供了有力的理论数据参考和现实参考,这就为将来的优化与生产工作提供了宝贵的参考资料,将来的生产中可以直接采用本文的设计参数,从而最大限度的减小了使用经验类比法设计所带来的材料和时间的浪费。所以本论文对于齿轮式气动马达的生产者和使用者都具有现实的意义,应用于煤矿生产可以提高生产效率,保障生产安全。
[Abstract]:The coal industry is the foundation of our national economy. In some major energy provinces in China, such as Shanxi Province, Coal has even reached the status of a pillar industry. However, we cannot help but notice that China's coal industry faces a serious problem of "safety accidents", and almost every year we see or hear of mine accidents in a certain coal mine. At the same time, we must understand the real cause of the mine accident and take appropriate measures to prevent the tragedy. Safety production is the most important in coal mining, in the coal production, There are many reasons for the mine accident, but the high concentration of gas is the first hidden danger in its safe production. In order to reduce the concentration of gas, The pneumatic drilling rig is widely used by domestic coal production enterprises to extract gas from deep mine. So the performance of mine pneumatic drilling rig is good or bad. The pneumatic motor is the core power element in the pneumatic drilling rig, and its performance parameters directly affect the performance of the drilling rig. This paper focuses on the design and calculation of the parameters for a kind of gear pneumatic motor which is widely used, and establishes the structural model of the important parts. The related finite element analysis of the mechanical properties of the structure is carried out. In this paper, the advantages of pneumatic motor compared with other motors and its development at home and abroad are introduced, and the irreplaceable advantages of gear type pneumatic motor compared with other electric motors are briefly explained. And the development history and present situation of pneumatic motor in our country. It can be seen that there is still a certain gap between China and foreign countries in the field of development of pneumatic motors. Through the exploration of a kind of safe and universal gear pneumatic motors, according to the working principle of gear pneumatic motors, The design and calculation of its main parameters are carried out, and the security of its important parts is checked. On the basis of this, the 3D model of its main structural components is established by using 3D modeling software, and the assembly is carried out. In order to show the corresponding position relation of its key structure, the strength of some key parts (gear shaft, connecting flat key, motor gear) in the gear type pneumatic motor is checked by theoretical calculation. It is proved that the design meets the requirements of theoretical strength. Finally, in order to verify whether the gear-type pneumatic motor designed in this paper is up to standard, the static and dynamic characteristics of the motor are analyzed. The finite element analysis software is used to analyze the mechanics of the system, and the calculation data with certain reference value are obtained, which provides a strong guarantee for the design optimization and production in the future. Through theoretical analysis, parameter calculation, model establishment and finite element analysis, it provides a powerful theoretical data reference and practical reference for the reasonable design and selection and application of the gear type pneumatic motor. This will provide valuable reference for future optimization and production work. The design parameters of this paper can be used directly in future production. In order to minimize the waste of materials and time brought by the use of empirical analogy design, this paper has practical significance for the producer and user of gear pneumatic motor. Application in coal mine production can improve production efficiency and ensure production safety.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH138.51

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