毕业设计（论文）-极坐标式钻臂凿岩台车工作机构设计.docx

CMJ12型极坐标式钻臂凿岩钻车工作机构设计

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摘要

对于富含坚硬岩石的巷道掘进和矿物开采，人们主要采用钻孔爆破的方法，因为此种方法消耗的能源少能够极大地降低成本。人们最早使用人力的方法进行凿岩。随着人类科学技术水平的提高，气腿凿岩机被发明出来并用于凿岩。但是这两种方法都有所不足，作业环境恶劣、劳动强度过大、工作效率低下，远不能满足目前持续增长的工业生产需求，所以具有机械化和较高自动化的凿岩台车逐渐成为主流的机械化凿岩设备。使用凿岩台车进行凿岩，工作条件有所改善并且极大地减轻了工人的负担、提高了掘进速度。

本次毕业设计的题目为CMJ12型极坐标式钻臂凿岩钻车工作机构设计，工作机构包括推进器、钻臂、回转机构。本次设计的主要过程为，首先根据本次毕业设计指导老师王老师提供的参数以及通过自我查阅相关资料所获得的参数，进行有关工作机构的尺寸计算以及强度校核，之后使用SW软件进行三模建模、三维建模完成后在SW导出二维图，最后在CAXACAD中对二维图修改并细化。

本次设计的凿岩台车工作机构有两个钻臂，并且每个钻臂都可单独自由升降并可顺时针旋转180度逆时针旋转180度总共360度，互补了每个钻臂单独工作时的盲区，极大地提高了设备的实用性和工作效率。

关键词：钻孔爆破；凿岩台车；极坐标；

Design?of?working?mechanism?of?cmj12?polar?

coordinate?rock?drill

Abstract

For?roadway?excavation?and?mineral?mining?rich?in?hard?rock,?people?mainly?use?the?method?of?drilling?and?blasting,?because?this?method?consumes?less?energy?and?can?greatly?reduce?the?cost.?People?first?used?human?methods?to?drill?rock.?With?the?improvement?of?human?science?and?technology,?air?leg?rock?drill?has?been?invented?and?used?for?rock?drilling.?However,?these?two?methods?have?some?shortcomings,?such?as?poor?working?environment,?excessive?labor?intensity?and?low?work?efficiency,?which?are?far?from?meeting?the?current?growing?industrial?production?demand.?Therefore,?the?rock?drilling?trolley?with?mechanization?and?high?automation?has?gradually?become?the?mainstream?mechanized?rock?drilling?equipment.?The?use?of?rock?drilling?jumbo?for?rock?drilling?has?improved?the?working?conditions,?greatly?reduced?the?burden?of?workers?and?increased?the?excavation?speed.

The?title?of?this?graduation?project?is?the?design?of?the?working?mechanism?of?cmj12?polar?coordinate?drill?arm?rock?drilling?rig.?The?working?mechanism?includes?propeller,?drill?arm?and?rotary?mechanism.?The?main?process?of?this?design?is?as?follows:?firstly,?according?to?the?parameters?provided?by?Mr.?Wang,?the?instructor?of?this?graduation?project,?and?the?parameters?obtained?through?self-examination?of?relevant?data,?the?size?calculation?and?strength?verification?of?the?re