文档介绍：WD采煤机可调行走箱设计
摘要
行走机构是采煤机的移动推行机构,其一旦出现问题将导致整个采煤机停止运行,严重影响采煤机的正常生产。本论文简单地阐述了2×132/630-WD行走箱的设计。
采煤机行走箱是牵引部的一部分,担负着移动采煤机的作用。采煤机既受井下工作面狭小空间的约束又要适应恶劣的工作条件,所以行走箱要求要尺寸尽量小,又要必须满足承载工况的强度要求。本设计主要内容包括传动比分配、齿轮设计校核、花键和轴的设计校核,最后从力学方面对行走轮和销齿啮合进行了弯曲强度和接触强度的有限元分析,并对行走机构核心部件之一的导向滑靴在各种工作状况下的受力情况进行了探索性的分析。
通过以上分析计算,设计出采煤机行走箱的整体结构,了解了行走机构非正常损坏、失效的一些原因和规律,为以后的产品设计和优化奠定了一定的基础。
关键词:采煤机;行走机构;弯曲强度;销轨
ABSTRACT
Haulage mechanism of shearer is the executive device for the machine’s shift. And as soon as it fails to operate, shearer will stop working, which definitely affects regular production and operation of shearer. So this paper studies some preliminary causes for improper failure and damage of the haulage mechanism. The paper bridfly expounds in the design of the department of walking box of 2×132/630-WD Shearer.
The running box is apart of traction of shearer, which is used for moving the shearer. The Shearer not only is limited to narrow space by underground mining, but also has to adapt to bad working , the size of the walking box should be as small as possible, and it must meet the required strength bearing conditions. The main contents are distributing the drive ratio and the designing and checking of gears, spline and shaft. The last part of this paper is about force analysis of the engagement between sprocket and pin-rail, which mainly studies bending strength and contact strength by the method of FEA. Finally, guiding shoes of shearer, which are the key parts of its haulage mechanism, are simply analyzed for their force analysis under different working conditions.
By the overall study, the box of shearer’s overall structure is worked out,
some preliminary causes for the improper failure and damage of haulage mechanism are given, which will provide useful reference for further design and optimization.
Keywords:Shearer ;haulage mechanism ;bending strength ;pin-rail
目录
1 绪论 1
1
采煤机概述 1
1
机械化采煤的主要方法 2
国内外现状 3