装配图
930KW电牵引采煤机牵引部设计
摘要
930KW采煤机是一种大功率无链电牵引采煤机，该采煤机适用于缓倾斜的中硬煤层，它与刮板输送机液压支架等配套使用，该采煤机的机械传动采用直齿传动系统，在能够承受足够载荷的情况下，节约成本，降低维护的难度。
本次设计中主要是针对采煤机牵引部的设计，采煤机的牵引部主要是由牵引机构和牵引部传动装置组成，其中传动装置中的减速箱是由两级直齿轮减速以及两级行星齿轮减速组成，其主要作用是将电动机输出的转速降低从而使扭矩增大，最后驱动行走部带动采煤机沿着工作面前进。设计任务主要有首先初步确定方案，确定了方案之后查阅各种资料对牵引部的传动系统进行设计，对减速箱的齿轮、轴、轴承、花键等零部件的选型和校核等，在设计过程中应该正确的利用设计手册，实事求是的计算，确保计算中数字的准确性，培养我们独立思考认真解决问题的能力，以此来达到此次设计的目的。
关键词：采煤机：牵引部：减速箱：齿轮：行星轮
930KW electric traction shearer traction department design
Abstract
The shearer is a kind of high-power chain electric haulage shearer,which is suitable for medium-hard coal seamswith gentle inclination, and it is used togetherwith scraper conveyor hydraulic support and so on. The mechanical transmission adopts a straight-toothed transmission system,which can save costs and reduce the difficulty of maintenancewhen it canwithstand sufficient loads.
In this design, the design of the hauling section of the shearer is mainly used. The traction section of the shearer is mainly composed of a traction mechanism and a traction section transmission device. The gear box in the transmission device is decelerated by two-stage spur gears and has two stages. The planetary gears are decelerated and their main function is to reduce the output speed of the motor to increase the torque. Finally, the driving unit drives the shearer to advance along theworking surface. The design task is mainly to first determine the program, determine the program after consultingvarious data on the traction drive system design, gearbox, shaft, bearings, splines and other parts of the gearbox selection andverification, etc. In the design process, the design manual should be used correctly and the calculation of seeking truth from facts should be done to ensure the accuracy of the numbers in the calculations. We must cultivate our ability to think independently and solve problems in a serious manner so as to achieve the purpose of this graduation project.
Keywords: shearer；traction；section gearbox；gear；planetary gear
目录
1概述1
1.1引言1
1.2电牵引采煤机概况1
1.2.1电牵引采煤机基本情况1
1.2.2电牵引采煤机的技术特点2
1.3电牵引采煤机的技术现状3
1.3.1国内电牵引采煤机现状3
1.3.2国外电牵引采煤机现状3
1.4采煤机的发展趋势4
1.5采煤机的组成4
1.6本次采煤机的设计目的5
2牵引部的设计6
2.1牵引部简述6
2.2牵引部传动方案的确定6
2.2.1设计原则6
2.2.2传动方案的选择7
2.2.3主要技术参数9
2.2.4电动机的选择9
2.2.5传动比的分配10
2.3牵引部传动计算11
2.3.1各级传动转速、功率、转矩11
2.3.2齿轮1和齿轮2的设计及强度效核13
2.3.3齿轮3和齿轮4的设计及强度效核18
2.3.4齿轮5和齿轮6的设计及强度效核24
2.4牵引部行星机构的设计计算31
2.4.1第一级行星齿轮的计算32
2.4.2第二级行星齿轮的计算38
3强度校核45
3.1Ⅱ轴的设计与校核45
3. 2对Ⅱ轴的轴承校核49
3.3对Ⅱ轴平键的校核50
3.3.1键Ⅱ的校核50
3.3.2键Ⅰ的校核50
3.4花键连接的强度校核51
4牵引部的总体52
4.1机械传动系统52
4.2牵引电动机52
4.3液压制动器53
4.4滑靴组架54
4.5调高油缸54
4.6与电控箱的连接部位55
5采煤机的使用和维护55
5.1采煤机的维护55
5.2采煤机轴承的维护及漏油的防治57
结束语60
参考文献61
致谢67
传动系统
二级行星减速器
行星齿轮
行走部
轴
A总装图
齿轮
目录
设计参数
设计所包含文件
摘要
字数
