大型矿井提升机主轴装置研究
发布时间：2018-08-24 20:54
【摘要】：矿井提升机是矿井运输中的咽喉设备,是井下与地面联系的重要工具,其安全可靠性直接关系到生产的正常进行和人员安全。目前缠绕式矿井提升机在计算机辅助设计方面,其生产厂家及研究机构主要集中在对单个零部件的有限元分析、结构参数优化等方面,对提升机主轴装置整体进行数值模拟计算及结构动力学研究分析方面还比较欠缺。本文主要针对大型矿井提升机主轴装置展开研究,首先通过对大型矿井提升机主轴在多个典型工况下的仿真分析研究,得到各个工况下的等效应力及其变形,并在最大等效应力条件下进行疲劳寿命研究,发现最先零件疲劳失效的部位并预测其使用寿命;其次对大型矿井提升机主轴与支轮的热装过程进行了热固耦合仿真研究,得到不同过盈量条件下的温度场及应力场分布特性,研究方法及结果可为过盈配合的热装工艺提供理论支撑与生产指导;同时对大型矿井提升机主轴装置结构动力学进行仿真分析,求解出各阶模态下的极限转速,为提高其运行效率提供理论依据;最后对大型矿井提升机主轴装置制动过程进行了仿真分析研究,求解出在整个制动过程温度场的分布、热应力分布,为制动系统设计及选择制动盘、闸瓦材料时提供参考。本论文的研究方法与成果,可广泛地应用于不同型号的矿井提升设备,有助于提高产品设计的可靠性,提升产品质量,缩短产品的设计开发周期,具有一定的经济效益。
[Abstract]:Mine hoist is the throat equipment in mine transportation and an important tool for the connection between underground and ground. Its safety and reliability are directly related to the normal operation of production and personnel safety. At present, in the area of computer aided design of winding mine hoists, its manufacturers and research institutions mainly focus on the finite element analysis of individual parts and the optimization of structural parameters, etc. The numerical simulation and structural dynamics analysis of the main shaft unit of hoist are still lacking. The main purpose of this paper is to study the main shaft device of large mine hoist. Firstly, the equivalent stress and deformation of the shaft of large mine hoist under several typical working conditions are obtained through the simulation and analysis of the main shaft of the large mine hoist. Under the condition of maximum equivalent stress, the fatigue life of the first part is found out and its service life is predicted. Secondly, the thermal-solid coupling simulation of the hot loading process between the main shaft and the supporting wheel of a large mine hoist is carried out. The distribution characteristics of temperature field and stress field under different interference quantities are obtained. The research methods and results can provide theoretical support and production guidance for the hot charging process of interference fit. At the same time, the structural dynamics of the main shaft unit of the large mine hoist is simulated and analyzed, and the limit rotational speed under each order mode is solved, which provides a theoretical basis for improving the running efficiency. Finally, the braking process of the main shaft of large mine hoist is simulated and studied, and the distribution of temperature field and thermal stress in the whole braking process is solved, which provides a reference for the design of braking system and the selection of brake disc and brake shoe material. The research methods and results of this paper can be widely used in different types of mine hoisting equipment, which can help to improve the reliability of product design, improve product quality, shorten the design and development cycle of products, and have certain economic benefits.
【学位授予单位】：贵州大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TD53
[Abstract]:Mine hoist is the throat equipment in mine transportation and an important tool for the connection between underground and ground. Its safety and reliability are directly related to the normal operation of production and personnel safety. At present, in the area of computer aided design of winding mine hoists, its manufacturers and research institutions mainly focus on the finite element analysis of individual parts and the optimization of structural parameters, etc. The numerical simulation and structural dynamics analysis of the main shaft unit of hoist are still lacking. The main purpose of this paper is to study the main shaft device of large mine hoist. Firstly, the equivalent stress and deformation of the shaft of large mine hoist under several typical working conditions are obtained through the simulation and analysis of the main shaft of the large mine hoist. Under the condition of maximum equivalent stress, the fatigue life of the first part is found out and its service life is predicted. Secondly, the thermal-solid coupling simulation of the hot loading process between the main shaft and the supporting wheel of a large mine hoist is carried out. The distribution characteristics of temperature field and stress field under different interference quantities are obtained. The research methods and results can provide theoretical support and production guidance for the hot charging process of interference fit. At the same time, the structural dynamics of the main shaft unit of the large mine hoist is simulated and analyzed, and the limit rotational speed under each order mode is solved, which provides a theoretical basis for improving the running efficiency. Finally, the braking process of the main shaft of large mine hoist is simulated and studied, and the distribution of temperature field and thermal stress in the whole braking process is solved, which provides a reference for the design of braking system and the selection of brake disc and brake shoe material. The research methods and results of this paper can be widely used in different types of mine hoisting equipment, which can help to improve the reliability of product design, improve product quality, shorten the design and development cycle of products, and have certain economic benefits.
【学位授予单位】：贵州大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TD53
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