矿用液压扒装机履带行走机构平稳性研究

发布时间：2018-03-26 22:39

本文选题：矿用液压扒装机　切入点：履带行走　出处：《安徽理工大学》2015年硕士论文

【摘要】：履带行走机构就其本身的结构特点来讲,它具有其它行走机构无法比拟的优点,具体是：接触地面比压小、对地附着性能好、爬坡能力强及弯转能力稳定等优点。然而由于矿用液压扒装机需工作在井下特殊环境,必须长期行驶在路面工况复杂及井下空间限制的条件下。一般履带行走机构是无法满足使用工况要求的。研究在煤矿井下地质条件下履带行走机构的稳定性已成为业界的关注焦点和难题。针对矿用液压扒装机的工况条件及行走机构的特点,利用虚拟样机动力学仿真方法,探索矿用液压扒装机高效性能行走机构的设计方法,找出影响其稳定性的相关及主要因素,本课题所做的具体工作如下： 1.基于矿用液压扒装机履带行走机构的工况及结构特点,运用经典理论力学,运动学和动力学的相关理论,利用虚拟样机仿真的功能软件,建立了行走机构稳定性的数学模型。 2.依据所建立的稳定性数学模型,采用单因素分析方法,探索出其影响的相关因素及主要因素,其中有关因素有：驱动轮的齿数、履带板的宽度、行走机构的位置分布；主要因素是：驱动轮与履带板的啮合关系及扒装机的运动方向。 3.针对矿用液压扒装机履带行走机构平稳性影响因素分析及结合仿真与计算软件对其实际工况进行仿真验证,其结果表明：所建模型合理可行,影响因素分析正确科学,本课题所建立的理论和方法对改善矿用液压扒装机履带行走机构的平稳性具有较高的参考价值和实际应用效益。
[Abstract]:In terms of its own structural characteristics, the crawler mechanism has the advantages that other walking mechanisms cannot compare, in particular, the specific pressure of contact with the ground is small, and the adhesion to the ground is good, It has the advantages of strong climbing ability and stable bending ability. However, due to the special underground environment, the hydraulic pick-up machine for mining needs to work. It is necessary to drive for a long time under the condition of complex road condition and space restriction in underground. The general crawler walking mechanism can not meet the requirements of operating conditions. The study of the stability of crawler walking mechanism under the underground geological conditions of coal mine has become. For the industry's focus of attention and difficult problems. According to the working conditions and the characteristics of the walking mechanism, the design method of the high efficient performance walking mechanism of the hydraulic bagging machine is explored by using the dynamic simulation method of virtual prototyping. To find out the relevant and main factors that affect its stability, the specific work of this topic is as follows:. 1. Based on the working conditions and structural characteristics of the crawler mechanism of the mining hydraulic scraper, the mathematical model of the stability of the walking mechanism is established by using the relevant theories of classical theory mechanics, kinematics and dynamics, and using the functional software of virtual prototype simulation. 2.According to the established mathematical model of stability, single factor analysis method is used to explore the related factors and main factors, including the number of teeth of the driving wheel, the width of the track board, and the location distribution of the walking mechanism, among which the number of teeth of the driving wheel, the width of the track board and the position distribution of the walking mechanism are explored. The main factors are: the meshing relationship between the drive wheel and the crawler and the movement direction of the scraper. 3. Based on the analysis of the factors affecting the smoothness of the crawler walking mechanism of mine hydraulic scraper and the simulation and verification of its actual working condition combined with simulation and calculation software, the results show that the established model is reasonable and feasible, and the analysis of the influencing factors is correct and scientific. The theory and method established in this paper have high reference value and practical application benefit for improving the smoothness of the crawler walking mechanism of mining hydraulic pick-up machine.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD421

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