毕业设计_二级圆锥-圆柱齿轮减速器.doc

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1、XX学院毕业设计说明书课题：二级圆锥-圆柱齿轮减速器子课题:同课题学生姓名:专业学生姓名班级学号指导教师完成日期42二级圆锥-圆柱齿轮减速器摘要减速器是各类机械设备中广泛应用的传动装置。减速器设计的优劣直接影响机械设备的传动性能。减速器是原动机和工作机之间的独立的闭式传动装置，用来降低转速和增大转矩，以满足工作需要，在某些场合也用来增速，称为增速器。　　选用减速器时应根据工作机的选用条件，技术参数，动力机的性能，经济性等因素，比较不同类型、品种减速器的外廓尺寸，传动效率，承载能力，质量，价格等，选择最适合的减速器。减速器的类别、品种、

2、型式很多，目前已制定为行（国）标的减速器有40余种。减速器的类别是根据所采用的齿轮齿形、齿廓曲线划分；减速器的品种是根据使用的需要而设计的不同结构的减速器；减速器的型式是在基本结构的基础上根据齿面硬度、传动级数、出轴型式、装配型式、安装型式、联接型式等因素而设计的不同特性的减速器。齿轮传动是现代机械中应用最广的一种传动形式。它的主要优点是：瞬时传动比恒定，工作平稳，传动准确可靠，可传递空间任意两轴间的运动和动力适用的功率和速度范围广传动效率高工作可靠，使用寿命长外轮廓尺寸小，结构紧凑。42 绪论随着社会的发展和人民生活水平的提高，人们

3、对产品的需求是多样化的，这就决定了未来的生产方式趋向多品种、小批量。在各行各业中十分广泛地使用着齿轮减速器，它是一种不可缺少的机械传动装置.它是机械设备的重要组成部分和核心部件。目前，国内各类通用减速器的标准系列已达数百个，基本可满足各行业对通用减速器的需求。国内减速器行业重点骨干企业的产品品种、规格及参数覆盖范围近几年都在不断扩展，产品质量已达到国外先进工业国家同类产品水平，承担起为国民经济各行业提供传动装置配套的重任，部分产品还出口至欧美及东南亚地区，推动了中国装配制造业发展。由于编者水平有限，设计中有错误与不当之处在所难免，希望

4、老师批评指正。关键字：减速器、齿轮、轴承、联接42目录摘要························································································2绪论························································································4一、设计任务书······················································

5、················8一、设计题目········································································8二、原始数据········································································8三、设计内容和要求······························································8二、传动方案的拟定··············

6、···············································9三、电动机的选择··································································91.选择电动机的类型·······························································92.选择电动机功率································································

7、···93.确定电动机转速42···································································10四、传动比的计算1.总传动比·········································································102.分配传动比······································································10五、传动装置运动、动力参数的计算1.

8、各轴的转速············································································102.各轴功率计····················