带式输送机高速托辊的研究与应用分析

发布时间：2018-06-24 16:59

本文选题：带式输送机 + 高速托辊　；参考：《山东科技大学》2011年硕士论文

【摘要】：本文论述了大型带式输送机用托辊技术的研究应用现状,综合托辊产品技术的研究成果,将新型的密封技术、轴承产品以及先进的制造与装配工艺等应用于托辊研制中,提出了适用于高速带式输送机用的新型托辊装置。在分析托辊各部分结构的基础上,根据带式输送机与托辊的运动关系建立了托辊装置的运动模型,通过对运动模型的分析,得到了在带式输送机正常运行过程中,托辊的主轴、管体、密封结构、轴承、轴承座等结构在带速提高的情况下,需要解决的问题。本文对比分析了目前市场上多种托辊产品,结合托辊相应试验结果,针对要解决的关键问题对各部件分别提出了改进设计与选型思路；基于高速带式输送机的运行状况设计了密封可靠、噪声小、低能耗的高速托辊装置,并对高速托辊各部件的材料与结构做了最优匹配设计。根据托辊装置的工作原理和技术要求指出了托辊的先进加工与装配工艺,先进制造与装配工艺确保主轴、轴承座的同轴度、管体的圆度达到最佳,大大减小了托辊的径向跳动量,为有效解决带式输送机在高速运行工况下出现的纵向谐振问题做技术准备。最后参考国家标准中托辊的技术条件分别针对托辊的旋转阻力、浸水密封性能、径向圆跳动、轴向载荷等各性能进行高速工况下的试验；参考煤矿井下用聚合物制品阻燃性的标准对管体进行酒精喷灯和酒精灯燃烧试验,并对试验数据进行分析,结果表明新型的高速托辊装置能够满足高速运行条件,并且阻力系数明显降低,为高速带式输送机的研发提供了条件。
[Abstract]:In this paper, the present situation of research and application of roller technology for large belt conveyors is discussed, and the new sealing technology, bearing products and advanced manufacturing and assembly technology are applied to the development of roller. A new type of roller device for high-speed belt conveyor is proposed. Based on the analysis of the structure of each part of the roller, the motion model of the roller device is established according to the motion relationship between the belt conveyor and the roller. Through the analysis of the motion model, the spindle of the roller during the normal operation of the belt conveyor is obtained. Pipe body, sealing structure, housing structure in the case of increased speed, the need to solve the problem. This paper compares and analyzes various kinds of roller products in the market at present. Combined with the corresponding test results of the roller, this paper puts forward the idea of improving the design and selecting the type of each component in view of the key problems to be solved. Based on the running condition of high speed belt conveyor, a high speed roller device with reliable seal, low noise and low energy consumption is designed, and the optimum matching design of material and structure of each component of high speed roller is made. According to the working principle and technical requirements of the roller device, the advanced processing and assembly technology of the roller is pointed out. The advanced manufacturing and assembly technology ensures the coaxial degree of the spindle, the bearing seat and the roundness of the tube body to the best. The radial runout of the roller is greatly reduced, and the technical preparation is made for solving the longitudinal resonance problem of belt conveyor under high speed operation conditions. Finally, according to the technical conditions of the roller in the national standard, the performance of rotary resistance, waterlogged seal, radial circle runout and axial load of the roller are tested at high speed. According to the standard of flame retardancy of polymer products used in coal mine, the combustion tests of alcohol spray lamp and alcohol lamp were carried out on the tube body, and the experimental data were analyzed. The results show that the new type of high speed roller device can meet the high speed operating conditions. And the resistance coefficient is obviously reduced, which provides the condition for the R & D of high speed belt conveyor.
【学位授予单位】：山东科技大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH222

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