Features of Wear of Gears of Agricultural Machinery

IF 1.3 Q2 AGRICULTURE, MULTIDISCIPLINARY
Aleksandr Veselovsky, Irina Troyanovskaya, Yurii Syromyatnikov, Sergey Voinash, Vladimir Malikov, Ramil Zagidullin, Linar Sabitov
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引用次数: 0

Abstract

Abstract The paper presents data on the resource and wear of the gears of agricultural tractor transmissions, on the basis of which the research problem and the novelty of the proposed methodology are formulated, based on the development and application of the stress state model of the gear, taking into account surface hardening. The methodology and calculation scheme for determining the power parameters of gearing are described in detail. In this case, the dependences and results of previous studies in the field of increasing the durability and reducing the wear of gears of transmission elements of vehicles of various functional purposes were used. To achieve this goal, the mathematical models of the stress state of gears are constructed without the presence of an external diffusion hardening coating and with a coating. Based on the simulation of the process of interaction of rubbing pairs of gears, the distribution of stresses in the contact zone over the surface layer of non-hardened and cemented to a depth of 1 mm gears, as well as the dependence of deflection on the thickness of the cemented layer and the deformation of the cemented layer during operation was established. Considering the research results given in literature, as well as those obtained on the basis of our own research, it should be noted that the analysis of gear stress state is an important direction in the study of the durability of gear units, the entire gearbox, and other gears of tractor transmissions and automotive technology at the present time. At the same time, the actual task is to establish the ratios of the allowable wear of gears and the limiting value of displacement of the centre distance, taking into account changes in the stress state scheme when using various types of coatings.
农业机械齿轮磨损特性研究
摘要本文以农业拖拉机传动齿轮的资源和磨损数据为基础,在考虑齿轮表面硬化的应力状态模型的发展和应用的基础上,提出了研究问题和方法的新颖性。详细介绍了确定齿轮传动动力参数的方法和计算方案。在这种情况下,使用了以往在提高各种功能用途车辆传动元件的耐久性和减少齿轮磨损方面的研究依赖和结果。为实现这一目标,分别建立了无外扩散硬化涂层和有外扩散硬化涂层情况下齿轮应力状态的数学模型。通过对齿轮摩擦副相互作用过程的仿真,建立了1 mm深度的未硬化和胶结齿轮表层接触区应力分布,以及运行过程中挠度与胶结层厚度和胶结层变形的关系。考虑到文献的研究结果,以及我们自己的研究结果,应该注意到齿轮的应力状态分析是目前拖拉机传动和汽车技术中齿轮单元、整个变速箱和其他齿轮的耐久性研究的一个重要方向。同时,实际任务是考虑到使用各种涂层时应力状态方案的变化,建立齿轮的允许磨损与中心距离位移的极限值的比值。
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来源期刊
Acta Technologica Agriculturae
Acta Technologica Agriculturae AGRICULTURE, MULTIDISCIPLINARY-
CiteScore
2.50
自引率
28.60%
发文量
32
审稿时长
18 weeks
期刊介绍: Acta Technologica Agriculturae is an international scientific double-blind peer reviewed journal focused on agricultural engineering. The journal is multidisciplinary and publishes original research and review papers in engineering, agricultural and biological sciences, and materials science. Aims and Scope Areas of interest include but are not limited to: agricultural and biosystems engineering; machines and mechanization of agricultural production; information and electrical technologies; agro-product and food processing engineering; physical, chemical and biological changes in the soil caused by tillage and field traffic, soil working machinery and terramechanics; renewable energy sources and bioenergy; rural buildings; related issues from applied physics and chemistry, ecology, economy and energy.
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