内—外复合啮合圆销式齿形链长精度的研究

发布时间：2019-07-10 14:23

【摘要】：链条作为机械行业中的一种十分重要的基础零件，在链条工业领域中已经实现了现代化的大规模生产。目前，随着社会的前进，各行各业不断发展，机械传动技术尤其是链传动技术得到了很好的提高与改进。新科技、新能源产品占领越来越多的市场，新工艺不断取代传统工艺，新的设备不断更新换代。此外，，大批量多功能用途的新产品出现在机械各行业中，研究成果的可靠性及实用性越来越受到重视，耐环境、低噪声、耐久性、可靠性、高强度等因素构成了研究过程的主要考虑因素，这就构成了链传动行业迅猛发展的重要原因。链传动在机械工业中有着许多其他传动方式所无法比拟的作用。特别是齿形链，近年来，随着汽车、摩托车和叉车等的发动机的不断发展，得到了各行业越来越多的重视。在一些特殊的工况下，比如低噪声、大载荷，其传动性能要优于齿轮传动、齿形带传动以及滚子链传动。本文主要是以圆销式齿形链的节距和链长作为研究对象，具体研究内容如下： 1、本论文简要的阐述了链传动的发展以及研究现状，分析了与皮带传动和齿轮传动相比较的优点及应用领域，介绍了链条的种类及链传动的几种失效形式；阐述了齿形链发展的背景、研究的必要性及科学方法的可行性，简要介绍了齿形链的分类及特点；明确了本次课题研究的目的。 2、本论文分析了影响组成齿形链的尺寸链的参数，其中包括：齿形链链板孔中心之间的距离、销轴中心与链板孔中心的偏离量、边心距、内侧工作齿廓曲率半径等。 3、齿形链在计算链长精度时跟滚子链一样，也有设计方面要求。多个链节所组成的链条长度等于这些链节的所有节距之和。因此，要想研究链长精度，我们必须还要研究组成链条的节距精度。本论文提出用概率法解尺寸链的方法对圆销式齿形链的节距和链长进行公式推导，根据其结构特点及试验验证中测量方法的不同，提出了两套具体方案：测量节距为同侧链板工作齿廓曲率半径与边心距在链板孔心连线的轴线上的投影之间的距离；测量节距为同侧链板工作齿廓曲率半径在链板孔心连线的轴线上的投影之间的距离。使论文的研究成果在应用于实际生产中保证其可靠的实用性，同时具有指导意义。 4、本论文通过对圆销式齿形链节距和链长关系的公式推导结果，经过进一步分析与推导，得出一条齿形链节数与链长相对偏差的关系图，并且用具体实例证明了求解方法的正确性与可行性。 5、为了证明理论推导的可靠性，本论文还对其进行了试验验证。测量了影响齿形链节距和链长的零件参数，对齿形链不同节数的过程能力指数分析，试验数据有力地证明了理论推导结论的正确性。为工厂生产、制造、安装圆销式齿形链提供了理论依据。
文内图片：

图片说明：齿形链
[Abstract]:As a very important basic part in the mechanical industry, chain has realized modern mass production in the field of chain industry. At present, with the progress of society and the continuous development of various industries, mechanical transmission technology, especially chain transmission technology, has been well improved and improved. New technology, new energy products occupy more and more markets, new processes continue to replace the traditional process, new equipment continues to update. In addition, a large number of new products for multi-purpose use appear in various mechanical industries, and the reliability and practicability of the research results are paid more and more attention. Environmental resistance, low noise, durability, reliability, high strength and other factors constitute the main considerations in the research process, which constitutes an important reason for the rapid development of the chain transmission industry. Chain transmission plays an incomparable role in the mechanical industry. Especially tooth chain, in recent years, with the continuous development of automobile, motorcycle and forklift engine, more and more attention has been paid to it in various industries. Under some special working conditions, such as low noise and high load, its transmission performance is better than that of gear transmission, tooth belt drive and roller chain drive. In this paper, the pitch and chain length of circular pin tooth chain are taken as the research object. The specific research contents are as follows: 1. This paper briefly expounds the development and research status of chain transmission, analyzes the advantages and application fields compared with belt transmission and gear transmission, and introduces the types of chain and several failure forms of chain transmission; This paper expounds the background of the development of tooth profile chain, the necessity of research and the feasibility of scientific methods, briefly introduces the classification and characteristics of tooth profile chain, and clarifies the purpose of this research. 2. In this paper, the parameters that affect the dimension chain that make up the tooth chain are analyzed, including the distance between the center of the plate hole of the tooth chain, the deviation between the center of the pin shaft and the center of the hole of the chain plate, the distance between the edge center and the curvature radius of the inner working tooth profile, and so on. 3. The tooth profile chain has the same design requirements as the roller chain in calculating the length and accuracy of the chain. The length of the chain composed of multiple links is equal to the sum of all the pitch of these links. Therefore, in order to study the chain length accuracy, we must also study the pitch accuracy of the chain. In this paper, the probability method is proposed to solve the dimension chain by using the probability method to deduce the pitch and chain length of the circular pin toothed chain. according to its structural characteristics and the different measurement methods in the experimental verification, two sets of concrete schemes are put forward: measuring the distance between the curvature radius of the working tooth profile of the same side chain plate and the projection of the edge center distance on the axis of the hole center line of the chain plate; The distance between the pitch and the projection of the curvature radius of the working tooth profile of the same side chain plate on the axis of the hole center line of the chain plate is measured. The research results of this paper can be applied to practical production to ensure its reliable practicability and guiding significance at the same time. 4. Through the derivation of the formula of the relationship between pitch and chain length of circular pin tooth chain, through further analysis and derivation, a diagram of the relative deviation between the number of tooth profile chain and chain length is obtained, and the correctness and feasibility of the solution method are proved by a concrete example. 5. In order to prove the reliability of the theoretical derivation, this paper also carries on the experimental verification to it. The parameters of the parts that affect the pitch and chain length of the tooth profile chain are measured, and the process capability index of different nodes of the tooth profile chain is analyzed. The experimental data strongly prove the correctness of the theoretical derivation conclusion. It provides a theoretical basis for the production, manufacture and installation of round pin toothed chain.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH132.45

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