D3机械厂装配车间输送带传动装置设计.doc

目录机械设计任务书机械课程设计任务书·······················································································3 机械课程设计第一阶段 确定传动方案··························································································4 电动机选择·······························································································4 、传动件的设计·························································································8 机械课程设计第二阶段 装配草图设计第一阶段说明······································································16 轴的设计及校核························································································16 轴承的设计及校验······················································································21 键的设计及校验·························································································22 机械课程设计第三阶段 、轴与齿轮的关························································································23 、端盖设计································································································23 、箱体尺寸的设计······················································································26 、齿轮和轴承的润滑····················································································27 机械课程设计小结 机械课程设计小结····················································································28 附1:参考文献一、设计任务书机械课程设计说明书 2 题目 D3. 机械厂装配车间输送带传动装置设计图1 :塔式起重机行走部示意图一、设计要求 1、设计条件: 1)机器功用由输送带传送机器的零部件; 2)工作情况单向运输、轻度振动、环境温度不超过 35℃; 3)运动要求输送带运动速度误差不超过 5% ; 4)使用寿命 10年,每年 350 天,每天 16小时; 5)检修周期一年小修;两年大修; 6)生产批量单件小批量生产; 7)生产厂型中型机械厂 2、设计任务 1)设计内容 1、电动机选型; 2、带传动设计; 3、减速器设计; 4、联轴器选型设计; 5、其他。 2 )设计工作量 1 、传动系统安装图 1 张; 2 、减速器装配图 1 张; 3 、零件图 2 张; 4、设计说明书一份。 3、原始数据主动滚筒扭矩( Nm ): 800 运动速度( m/s ): 机械课程设计说明书 3 主动滚筒直径( mm ):300 二、课程设计第一阶段 确定传动方案( 1)、传动方案: 方案:电动机直接通过带传动接在两级圆柱齿轮减速器上,该方案的优点是圆柱齿轮的设计、加工制造容易,采用卧式两级圆柱齿轮减速器。( 2)、减速器内部工作方式:同轴式直尺啮合。( 3) 、减速器的总传动比为 ,其中带传动为 2 ,高速级与低速级为 3。减速器传动比范围为 8 6 0 i ? ?。( 4)、部分面形式:水平剖分面形式。( 5)、轴承类型: