摘要 EBZ125XK型掘进机是一种悬臂式掘进机，主要用于中型煤巷及半煤岩巷的掘进作业。它结构紧凑、适应性好、机身矮、重心低、操作简单、检修方便。本设计主要针对掘进机的整机进行方案设计，对截割部进行结构及传动等相关设计。EBZ125XK型掘进机截割部驱动动力由截割电机提供，为实现较强的连续过载能力，适应复杂多变的截割载荷，并利用喷雾水加强冷却效果，悬臂式掘进机多采用防爆水冷式电动机来驱动截割头。在截割部传动设计中用2K-H行星减速器。设计中对2K-H型行星减速器进行了优化配齿，采用高度变位，并做了相应的校核。 关键词：悬臂式掘进机；截割部分；行星减速器 ABSTRACT The medium-size EBZ125XK type tu
n
nelli
ng road-header is mai
nly used i
n tu
n
nelli
ng operatio
ns of the medium coal la
ne a
nd the half coal crag la
ne diggi
ng the tu
n
nels,.It marks by features of compact co
nstructio
n , good adaptability, a short body a
nd a low ce
nter of gravity ,it is also easy to operate a
nd co
nve
nie
nt to overhaul. This paper is mai
nly make a desig
n for the overall machi
ne a
nd somethi
ng else releva
nt to the structure a
nd tra
nsmissio
n of the cutti
ng u
nit.The cutti
ng u
nit drivi
ng force of EBZ125XK is provided by the cutti
ng motor。Tu
n
neli
ng road-header
normally adopt explosio
n-proof water-cooled electric motors to drive the cutti
ng head, usi
ng water spray to stre
ngthe
n the cooli
ng effect, for improve the ability of co
nti
nuous overloadi
ng a
nd adapt to the complex a
nd volatile cutti
ng load. Based o
n the theory of 2K-H type pla
netary reducer, this paper desig
n a appropriate 2K-H type pla
netary reducer which ca
n be use i
n cutti
ng u
nit. The desig
n of 2K-H type pla
netary reducer has optimize the selective gear. Keywords：Ca
ntilever tu
n
neli
ng machi
ne ；cutti
ng u
nit ；Pla
net reductio
n gear 目录 1前言1 1.1设计背景和目的6 1.2国外岩石隧道掘进机法的发展历史6 1.3中国岩石隧道掘进机法历史的概况8 1.4岩石隧道掘进机的现状9 1.5国际掘进机，盾构机发展趋势11 1.5.1岩石隧道掘进机的分类12 1.5.2掘进机分类13 1.6 EBZ-125XK型掘进机简介14 1.6.1产品特点14 1.6.2主要用途、适用范围15 1.6.3产品型号、名称及外形15 1.6.4型号的组成及其代表意义16 2总体设计16 2.1总体参数16 2.1.1截割都17 2.2掘进机各组成部分基本结构设计17 2.2.1截割部17 2.2.2装载部19 2.3刮板输送机19 2.4行走部20 2.5机架和回转台21 2.6液压系统22 2.7电气系统24 3截割机构设计24 3.1截割头24 3.2截割减速器25 3.3电动机25 3.4悬臂伸缩装置26 3.5回转台27 4减速器设计和校核27 4.1减速机构概述27 4.2 2K-H减速器高速级齿轮设计27 4.2.1齿轮材料、热处理工艺及制造工艺选定27 4.2.2减速器原理图28 4.2.3确定各主要参数28 4.2.4几何尺寸计算31 4.2.5齿轮啮合要素计算32 4.2.6齿轮强度验算32 4.2.7行星轮啮合强度验算37 5 .2K-H减速器低速级速级齿轮设计45 5.1齿轮材料、热处理工艺及制造工艺选定45 5.2确定各主要参数45 5.3计算几何尺寸47 5.4齿轮强度验算48 5.5减速器其他零件校核48 5.5.1输入轴校核48 5.5.2轴承校核52 5.5.3键的校核53 6.掘进机的检修及维护保养55 6.1机器的日常维护保养55 6.2机器的定期维护保养56 6.3润滑56 6.4液压系统用油58 6.5电气59 7.机器常见故障原因及处理方法59 7.1截割部59 7.2装运部59 8安全保护62 9安全保护63 9．1安装与检查63 9.2维护、修理与故障排除64 9.3包装及保管64 参考文献65 致谢67