设计简介
MG170采煤机总成设计
摘要：本说明书描述了MG170型链牵引采煤机整机方案设计以及截割滚筒的设计和计算过程。
MG170型链牵引采煤机可用于煤层厚度为1.5-3m、煤质中硬的缓倾斜煤层。与传统的纵向布置的单电机采煤机相比，该采煤机将截割电机直接安装在截割部壳体内，齿轮减速装置全部集中在截割部壳体及行星减速器内，取消了螺旋伞齿轮、固定减速箱、摇臂回转套等结构，使其结构更简单、紧凑，可靠性更高。
截割部是采煤机直接落煤、装煤的部分，其消耗的功率约占整个采煤机功率的80%-90%，主要由截割部壳体、截割电机、齿轮减速装置、滚筒等组成。此采煤机的另一个重要部分是牵引机构。MG170采煤机采用的是链牵引方式。链牵引机构主要由驱动链轮、导向轮、牵引链及紧链装置组成。
关键词：采煤机；截割部；牵引机构；结构设计
The assembly design of MG170 shearer
Abstract:This brochure describes the type of hydraulic MG170 shearer traction unit program design and cutting the Department of Design and calculation process.
MG170 traction Shearer hydraulic seam thickness can be used for 2-4 m, Hard coal to the gently inclined seam. With the traditional vertical layout of the single-motor compared to Shearer, Shearer will be the ranging-arm installed directly in the cutting of the shell, gear device exclusively on cutting Shell and planetary reducer, the abolition of the spiral bevel gears, gear box fixed, Rocker rotating sets of structures, their structure is simpler, more compact and higher reliability.
Ranging-arm of the shearer is directly charged coal, the coal loaded, its about the power consumption of the entire power shearer 80% -90%, mainly by cutting Shell, cutting electrical, Gear and drum components. In addition, another important part of the shearer is traction.The MG170 shearer is a chain traction machine. Chain traction mechanism is composed of drive sprocket, guide wheels, traction chain and tight winding mechanism.
Key words: shearer；cutting unity；traction；structural design
目 录
1 采煤机概述 ………………………………………………………….......1
1.1采煤机械的种类 ………………………………………………….......1
1.2 对采煤机械的要求 …………………………………………….........2
1.3 采煤机的工作原理 ……………………………………………..........2
1.4破碎煤壁方案…................................................…4
1.5 采煤机的结构特征 ……………………………………………..........5
2 MG170采煤机专题设计 ……………………………………….......…13
2.1 MG170采煤机原始数据 ………………………………………........14
2.2 MG170型采煤机截割部 …………………………………….......….14
2.3 MG170型采煤机牵引部 ………………………………………........22
2.4 螺旋滚筒受力分析 ……………………………………......……......28
2.5 摇臂的壁厚计算 …………………………....………………............33
2.6 采煤机箱体壁厚计算 ………………………....………………........36
3 采煤机的发展趋势 ………………………...........…………................42
参考文献 …………………………........……………………….....……..44
谢辞 …………………………........…………............……………....…….......45
摘要：本说明书描述了MG170型链牵引采煤机整机方案设计以及截割滚筒的设计和计算过程。
MG170型链牵引采煤机可用于煤层厚度为1.5-3m、煤质中硬的缓倾斜煤层。与传统的纵向布置的单电机采煤机相比，该采煤机将截割电机直接安装在截割部壳体内，齿轮减速装置全部集中在截割部壳体及行星减速器内，取消了螺旋伞齿轮、固定减速箱、摇臂回转套等结构，使其结构更简单、紧凑，可靠性更高。
截割部是采煤机直接落煤、装煤的部分，其消耗的功率约占整个采煤机功率的80%-90%，主要由截割部壳体、截割电机、齿轮减速装置、滚筒等组成。此采煤机的另一个重要部分是牵引机构。MG170采煤机采用的是链牵引方式。链牵引机构主要由驱动链轮、导向轮、牵引链及紧链装置组成。
关键词：采煤机；截割部；牵引机构；结构设计
The assembly design of MG170 shearer
Abstract:This brochure describes the type of hydraulic MG170 shearer traction unit program design and cutting the Department of Design and calculation process.
MG170 traction Shearer hydraulic seam thickness can be used for 2-4 m, Hard coal to the gently inclined seam. With the traditional vertical layout of the single-motor compared to Shearer, Shearer will be the ranging-arm installed directly in the cutting of the shell, gear device exclusively on cutting Shell and planetary reducer, the abolition of the spiral bevel gears, gear box fixed, Rocker rotating sets of structures, their structure is simpler, more compact and higher reliability.
Ranging-arm of the shearer is directly charged coal, the coal loaded, its about the power consumption of the entire power shearer 80% -90%, mainly by cutting Shell, cutting electrical, Gear and drum components. In addition, another important part of the shearer is traction.The MG170 shearer is a chain traction machine. Chain traction mechanism is composed of drive sprocket, guide wheels, traction chain and tight winding mechanism.
Key words: shearer；cutting unity；traction；structural design
目 录
1 采煤机概述 ………………………………………………………….......1
1.1采煤机械的种类 ………………………………………………….......1
1.2 对采煤机械的要求 …………………………………………….........2
1.3 采煤机的工作原理 ……………………………………………..........2
1.4破碎煤壁方案…................................................…4
1.5 采煤机的结构特征 ……………………………………………..........5
2 MG170采煤机专题设计 ……………………………………….......…13
2.1 MG170采煤机原始数据 ………………………………………........14
2.2 MG170型采煤机截割部 …………………………………….......….14
2.3 MG170型采煤机牵引部 ………………………………………........22
2.4 螺旋滚筒受力分析 ……………………………………......……......28
2.5 摇臂的壁厚计算 …………………………....………………............33
2.6 采煤机箱体壁厚计算 ………………………....………………........36
3 采煤机的发展趋势 ………………………...........…………................42
参考文献 …………………………........……………………….....……..44
谢辞 …………………………........…………............……………....…….......45
