薄煤层滚筒式采煤机牵引部设计

发布时间：2018-02-20 16:14

本文关键词： 薄煤层采煤机牵引部优化设计有限元分析试验装置　出处：《湖南科技大学》2017年硕士论文　论文类型：学位论文

【摘要】：薄煤层滚筒式采煤机对保证煤矿高产高效生产至关重要。牵引部是采煤机的重要组成部分,它的性能决定着滚筒式采煤机的适应性、可靠性、稳定性。由于受到煤层厚度的限制,在狭小的工作空间里,设计满足工作要求的牵引部是必须要解决的问题,本文通过现代设计方法,优化牵引部的性能参数,最终设计出薄煤层牵引部大传动比牵引驱动装置和具有大模数行走轮的牵引机构。满足了采煤机对牵引部的要求。本文以某煤矿工作面的煤层赋存情况及产量要求为依据,设计了采煤机总体参数;按照“三机配套”原则,确定了牵引部的外形尺寸,传动系统,牵引驱动装置轴系的相关参数,进行了传动比分配,讨论了牵引驱动装置的传动形式及布置方式,介绍了牵引部附属装置的功能及设计方法;接着对牵引驱动装置的传动齿轮和轴承进行受力分析及强度校核;并以传动装置中外形尺寸最大的行星传动机构体积最小为优化目标,进行了优化设计,运用MATLAB中的最小函数求解,最终确定了牵引驱动装置的相关参数;利用三维软件建立了行走驱动装置有限元模型,并对受力最复杂的行走轮进了有限元设计。最终解决了在有限空间内,采煤机大传动比行走装置的设计问题。按国家标准要求,利用专业试验平台对牵引部进行了型式试验,并通过实时监控系统监控试验过程并实时采集了试验数据,通过试验数据分析,设计的牵引部传动效率高、工作可靠稳定,并通过了薄煤层滚筒式采煤机的整机试验;通过整机工业性试验,验证了牵引部设计合理性、满足了采煤机工作的性能要求。
[Abstract]:The thin coal seam drum shearer is very important to ensure the high production and high efficiency of coal mine. The traction part is an important part of the shearer, and its performance determines the adaptability and reliability of the roller shearer. Stability. Due to the limitation of coal seam thickness, it is necessary to solve the problem of designing traction parts that meet the requirements of work in the narrow workspace. This paper optimizes the performance parameters of traction parts by modern design method. Finally, the large ratio traction drive device of thin coal seam traction part and the traction mechanism with large modulus walking wheel are designed, which meet the requirements of the shearer for the traction part. This paper is based on the coal seam occurrence and production requirements of a coal mining face. The overall parameters of the shearer are designed, and according to the principle of "three machines matching", the shape and size of the traction part, the transmission system and the relevant parameters of the shaft system of the traction driving device are determined, and the transmission ratio is allocated. This paper discusses the driving form and arrangement of the traction drive, introduces the function and design method of the accessory device of the traction part, and then analyzes the force and the strength of the driving gear and bearing of the traction drive. Taking the minimum volume of the planetary transmission mechanism with the largest shape in the transmission device as the optimization objective, the optimization design is carried out, and the relevant parameters of the traction drive device are finally determined by solving the minimum function in MATLAB. The finite element model of walking drive device is established by using three dimensional software, and the finite element design of walking wheel with the most complicated force is designed. Finally, the design problem of large driving ratio walking device of shearer in finite space is solved. According to the requirement of national standard, The type test of the traction department is carried out by using the professional test platform, and the test process is monitored by the real-time monitoring system and the test data are collected in real time. Through the analysis of the test data, the designed traction part has high transmission efficiency and reliable and stable operation. Through the whole machine test of thin coal seam drum shearer and the industrial test of the whole machine, the rationality of the design of the traction part is verified, and the performance requirement of the shearer is satisfied.
【学位授予单位】：湖南科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TD421.61

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