支撑掩护式液压支架
中文摘要
采煤综合机械化,是加速我国煤炭工业发展,大幅度提高劳动生产率,实现煤炭工业现代化的一项战略措施。综合机械化不仅产量大,效率高,成本低,而且能减轻笨重的体力劳动,改善作业环境,是煤炭工业技术的发展方向。液压支架是综合机械化采煤方法中最重要的设备之一。
液压支架主要包括以下几个基本部分组成:顶梁,掩护梁和四连杆机构,侧护板,底座,立柱,千斤顶。设计要遵从支护性能好、强度高、移架速度快、安全可靠等原则。
在支撑掩护式液压支架的设计过程中,四连杆机构和底座结构件的设计是重点。本介绍了液压支架的结构,类型,工作原理,特点,目的及要求,对支撑掩护式液压支架作了详尽的分析和介绍,讲述了这种支架的方案和用途。另外,对液压支架的结构性能、受力状况和如何选型等进行了分析,同时介绍了液压支架的使用、维修和故障排除等问题。
关键词:液压支架支护四连杆机构底座
Abstract
Hydraulic Support
The comprehe
nsive mecha
nizatio
n of coal mi
ni
ng is a strategic measure to the acceleratio
n coal i
ndustrial developme
nt of our cou
ntry, raise labor productivity substa
ntially, realize the moder
n of coal i
ndustry. Sy
nthesize mecha
nizatio
n
not o
nly output big, efficie
ncy has low cost high a
nd ca
n alleviate heavy physical labor a
nd improveme
nt schoolwork e
nviro
nme
nt, is the tech
nology of coal i
ndustry develop directio
n. Hydraulic support is the o
ne of comprehe
nsive most importa
nt equipme
nt i
n the mecha
nizatio
n method of coal mi
ni
ng. Hydraulic support major from some followi
ng basically partial compositio
ns: Top beam, scree
ns beam a
nd 4 li
nkage mecha
nisms, side fe
nder, base, prop. Desig
n to follow protect performa
nce good, stre
ngth is speed high, move rapid, safely reliable etc. pri
nciple. I
n the desig
n course that the type of supports cover type, the desig
n of 4 li
nkage mecha
nism,base,structural member is key. This paper has i
ntroduced requireme
nt, type,worki
ng pri
nciple, characteristic, purpose a
nd the structure of hydraulic support, for scree
ni
ng type hydraulic pressure support have made detailed a
nalysis a
nd i
ntroductio
n, have
narrated use a
nd the scheme of this ki
nd of support. Furthermore, the structure of hydraulic structures performa
nce, the power situatio
n a
nd how to choose models are a
nalysed, at the same time it i
ntroduces the use of hydraulic Support, mai
nte
na
nce a
nd fault resolutio
n a
nd other issues. Keywords: hydraulic support shori
ng 4 li
nkage mecha
nisms base 目录 前言3 一、绪论4 1.1液压支架的工作原理4 1.2液压支架的工作过程4 1.3支架组成6 1.4液压支架主要结构件及其作用6 1.4.1顶梁6 1.4.2掩护梁7 1.4.3底座7 1.4.4前后连杆8 1.4.5推移机构11 1.5液压系统及其控制元件11 1.6支架的设计特点12 1.7液压支架的架形12 二、液压支架的结构设计14 2.1液压支架的选型14 2.1.1液压支架结构类型的优选14 2.1.2液压支架的架形选择原则15 2.1.3影响架形选择的因素16 2.2主要设计参数17 2.3液压支架的结构设计17 2.3.1四连杆机构的作用17 2.3.2四连杆机构定位尺寸和极限参数的确定19 2.3.3四连杆机构的绘制21 2.3.4液压支架主要结构参数和形式的确定23 2.3.5液压支架的总体布置28 2.3.6支架的主要结构29 2.3.7主要参数的确定33 2.4拟定液压系统37 三、支架的强度计算39 3.1支架的工作状态39 3.2支架载荷的确定39 3.3支架受力分析40 3.3.1各主要参数的影响42 3.3.2各主要部件的受力计算及主要部件强度校核44 3.4顶梁载荷分布53 3.5支护强度54 3.6底座接触比压54 3.7护效率55 3.8支架受力的影响因素55 3.9强度条件56 4.1液压支架操作58 4.2液压支架操作维护要求60 4.3液压支架操作管理事项61 4.4维护和管理的具体内容62 4.5维修与管理注意事项63 4.6支架的合理工作状态64 五、液压支架常见故障及其排除67 5.1结构件和连接销轴67 5.2液压系统及液压元件67 5.3支架在操作和支护过程中的故障68 结论71 致谢72 参考书目73
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nsive mecha
nizatio
n of coal mi
ni
ng is a strategic measure to the acceleratio
n coal i
ndustrial developme
nt of our cou
ntry, raise labor productivity substa
ntially, realize the moder
n of coal i
ndustry. Sy
nthesize mecha
nizatio
n
not o
nly output big, efficie
ncy has low cost high a
nd ca
n alleviate heavy physical labor a
nd improveme
nt schoolwork e
nviro
nme
nt, is the tech
nology of coal i
ndustry develop directio
n. Hydraulic support is the o
ne of comprehe
nsive most importa
nt equipme
nt i
n the mecha
nizatio
n method of coal mi
ni
ng. Hydraulic support major from some followi
ng basically partial compositio
ns: Top beam, scree
ns beam a
nd 4 li
nkage mecha
nisms, side fe
nder, base, prop. Desig
n to follow protect performa
nce good, stre
ngth is speed high, move rapid, safely reliable etc. pri
nciple. I
n the desig
n course that the type of supports cover type, the desig
n of 4 li
nkage mecha
nism,base,structural member is key. This paper has i
ntroduced requireme
nt, type,worki
ng pri
nciple, characteristic, purpose a
nd the structure of hydraulic support, for scree
ni
ng type hydraulic pressure support have made detailed a
nalysis a
nd i
ntroductio
n, have
narrated use a
nd the scheme of this ki
nd of support. Furthermore, the structure of hydraulic structures performa
nce, the power situatio
n a
nd how to choose models are a
nalysed, at the same time it i
ntroduces the use of hydraulic Support, mai
nte
na
nce a
nd fault resolutio
n a
nd other issues. Keywords: hydraulic support shori
ng 4 li
nkage mecha
nisms base 目录 前言3 一、绪论4 1.1液压支架的工作原理4 1.2液压支架的工作过程4 1.3支架组成6 1.4液压支架主要结构件及其作用6 1.4.1顶梁6 1.4.2掩护梁7 1.4.3底座7 1.4.4前后连杆8 1.4.5推移机构11 1.5液压系统及其控制元件11 1.6支架的设计特点12 1.7液压支架的架形12 二、液压支架的结构设计14 2.1液压支架的选型14 2.1.1液压支架结构类型的优选14 2.1.2液压支架的架形选择原则15 2.1.3影响架形选择的因素16 2.2主要设计参数17 2.3液压支架的结构设计17 2.3.1四连杆机构的作用17 2.3.2四连杆机构定位尺寸和极限参数的确定19 2.3.3四连杆机构的绘制21 2.3.4液压支架主要结构参数和形式的确定23 2.3.5液压支架的总体布置28 2.3.6支架的主要结构29 2.3.7主要参数的确定33 2.4拟定液压系统37 三、支架的强度计算39 3.1支架的工作状态39 3.2支架载荷的确定39 3.3支架受力分析40 3.3.1各主要参数的影响42 3.3.2各主要部件的受力计算及主要部件强度校核44 3.4顶梁载荷分布53 3.5支护强度54 3.6底座接触比压54 3.7护效率55 3.8支架受力的影响因素55 3.9强度条件56 4.1液压支架操作58 4.2液压支架操作维护要求60 4.3液压支架操作管理事项61 4.4维护和管理的具体内容62 4.5维修与管理注意事项63 4.6支架的合理工作状态64 五、液压支架常见故障及其排除67 5.1结构件和连接销轴67 5.2液压系统及液压元件67 5.3支架在操作和支护过程中的故障68 结论71 致谢72 参考书目73
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