二级展开式斜齿圆柱齿轮减速器的设计.pdf

本 科 毕 业 论 文（设 计） 论文题目：二级展开式斜齿圆柱齿轮减速器的设计 摘要 减速器是一种传动装置。其基本结构包括三个主要部件：轴系、箱体和配件。在 船舶、汽车、机车、建筑机械、机械厂的加工机械和自动化的生产设备中都有广泛应 用。 毕业设计是针对“展开式二级斜齿圆柱齿轮减速器的设计” ；设计中从原始数据出 发先确定了传动方案，并进行了动力和运动参数的计算；在减速器结构设计的过程中， 重点对传动齿轮根据设计原则进行设计计算。确定各对齿轮的结构尺寸并进行强度校 核；其次对减速器中的转轴进行结构设计及强度计算；对减速器中标准件轴承，键， 联轴器及箱体结构进行选取及设计。最后在此基础上绘制减速器的主要装配图及零件 图。 关键字：减速器；结构设计；机械设计 论文类型：工程设计 Abstract A reducer is a transmission device. Its basic structure consists of three main parts: shafting, housing and accessories. It is widely used in ships, automobiles, locomotives, construction machinery, machinery factory processing machinery and automatic production equipment. Graduation design is aimed at the design of expansion type two helical cylindrical gear reducer; Design from the original data to determine the transmission scheme, and carried on the calculation of power and motion parameters; In the process of reducer structural design, focus on the transmission gear design and calculation according to the design principle. Determine the structural size of each pair of gear and strength check; Secondly, the structural design and strength calculation of the rotating shaft in the reducer; The standard parts of the reducer bearing, key, coupling and box structure selection and design. Finally, on this basis, draw the main assembly drawing and parts drawing of the reducer. Keywords: reducer; Structure design; Mechanical design ThesisType:EngineeringDesign 目录 摘要 I Abstract II 目录 III 1 绪论 1 1.1 研究意义与背景 1 1.2 研究思路 1 1.3 研究方法2 2 传动装置的总体设计 3 2.1 原始数据3 2.2 电动机的选择3 2.2.1 传动装置的总效率 3 2.3 确定电动机的容量4 2.4 确定总传动比以及分配各级传动比4 3 减速器的设计 7 3.1 齿轮的设计7 3.1.1 高速级齿轮传动设计计算 7 3.1.2 低速级齿轮传动设计计算 17 3.2 轴的设计27 3.2.1 输入轴的设计 27 3.2.2 中间轴设计计算32