刮板输送机刮板链可靠性标准体系的研究

发布时间：2018-03-03 18:37

本文选题：刮板链　切入点：可靠性标准体系　出处：《太原理工大学》2017年硕士论文　论文类型：学位论文

【摘要】：刮板输送机故障是影响煤矿综采工作面开机率、制约煤炭开采效率的主要因素。在刮板输送机的故障中,以刮板链的故障最为常见。因此,开展刮板链的可靠性研究对于规避刮板链故障、提高刮板链寿命具有重要意义。虽然对于刮板链的可靠性研究,国内外许多学者做了大量工作,但尚未形成完善的体系,也没有实用的可靠性标准规范刮板链可靠性工作的实施。本文将重点研究矿用刮板输送机刮板链可靠性标准体系的构建和部分刮板链可靠性标准的制定。首先,介绍刮板链和标准体系的相关知识,并总结分析当前矿用刮板链存在的主要故障形式、原因和解决措施;其次,查找分析了现行刮板输送机刮板链的相关标准,指出当前现行标准存在的主要问题,总结归纳刮板链研发设计、生产制造、运输贮存、使用维护4个全寿命周期阶段的主要可靠性工作,构建基于全寿命周期理念的刮板链可靠性标准体系;然后,绘制了刮板链可靠性工作大纲框图,编制了刮板链可靠性工作项目应用矩阵表,并对具体的可靠性工作项目进行了筛选,制定刮板链可靠性工作大纲,对各项可靠性工作进行了规范和解释;最后,针对应用实际,制定了刮板链可靠性设计评审标准、刮板链可靠性评价通则、刮板链产品质量及可靠性目标达成标准、刮板链可靠性寿命试验标准共4项具体标准,选取JOY-1250型刮板输送机、Φ48×152圆环链进行了可靠性寿命试验的验证,试验数据显示,刮板链平均无故障工作时间近似服从参数为723.26的指数分布,得到此型号刮板链平均无故障工作时间为723.26h,平均故障修复时间为6.33h,试验具有一定的可行性,能够在一定程度上指导刮板输送机刮板链可靠性工作的实施。
[Abstract]:The fault of scraper conveyor is the main factor that affects the opening rate of coal mining face and restricts the efficiency of coal mining. In the fault of scraper conveyor, the fault of scraper chain is the most common. The research on the reliability of scraper chain is of great significance to avoid the fault of scraper chain and improve the life of scraper chain. Although many scholars at home and abroad have done a lot of work on the reliability research of scraper chain, it has not yet formed a perfect system. There is no practical reliability standard. This paper will focus on the construction of mine scraper conveyor scraper chain reliability standard system and the formulation of partial scraper chain reliability standard. This paper introduces the relevant knowledge of scraper chain and standard system, and summarizes and analyzes the main fault forms, causes and solving measures of current mine scraper chain. Secondly, it finds out and analyzes the relevant standards of scraper chain of scraper conveyor. This paper points out the main problems existing in the current standard, summarizes the main reliability work of the four life cycle stages of development and design, production and manufacture, transportation and storage, operation and maintenance of scraper chain, The reliability standard system of scraper chain based on the concept of whole life cycle is constructed, and then the frame diagram of the working outline of the reliability of scraper chain is drawn up, and the application matrix table of the reliability work item of scraper chain is worked out. The specific reliability work items are screened, the working outline of the reliability of the scraper chain is worked out, and the reliability work of the scraper chain is standardized and explained. Finally, according to the practical application, the evaluation criteria for the reliability design of the scraper chain are established. The general rules for reliability evaluation of scraper chain, the quality and reliability target of scraper chain and the test standard of reliability life of scraper chain are four specific standards. The reliability life test of JOY-1250 type scraper conveyor and 桅 48 脳 152 ring chain are carried out. The test data show that the average fault-free working time of scraper chain is similar to the exponential distribution of parameter 723.26, and the average fault-free working time of this type of scraper chain is 723.26 h and the average fault repair time is 6.33 h. The experiment is feasible. To a certain extent, the scraper conveyor can guide the implementation of the reliability of scraper chain.
【学位授予单位】：太原理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TD528.3

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