德州科技职业学院
毕业设计（论文）
题目 传动轴的工艺设计
院系名称 机电工程系 班 级 07机电1班 学生姓名 冯久辉 学 号 070201104 指导教师 丛伟
答辩教师 贾其燕 孙慧丽 时 间 2010年5月10号
德州科技职业学院毕业论文 摘要
摘 要
传动轴是组成机器零件的主要零件之，一切做回转运动的传动零件（例如：齿轮，蜗轮等）都必须安装在传动轴上才能进行运动及动力的传动，传动轴常用于变速箱与驱动桥之间的连接。这种轴一般较长，且转速高，只能承受扭矩而不承受弯矩。应该使传动轴具有足够的刚度和高临界转速，传动轴的设计方法是以材料力学为基础，根据轴的强度计算初定其外径，根据其所承受的载荷确定热处理工艺，然后校核临界转速和扭转稳定性。在强度计算中，由于所取的安全系数较大，从而使轴的尺寸过大，本文讨论的传动轴工艺设计方法，并根据现行规范增添了些表面处理的方式比如表面发兰。
关键词：传动轴，零件，刚度，强度，表面发兰
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德州科技职业学院毕业论文 摘要
ABSTRACT
Shaft is composed of the main parts of the machine parts, all made rotary motion transmission parts (such as: gears, worm, etc.) must be installed on the transmission shaft to carry out the movement and force transmission, drive shaft commonly used in the transmission and drive axle the connection between. This axis generally longer, and high speed, can not bear to withstand torque moment. Should be sufficient to drive shaft stiffness and high critical speed, the drive shaft of the design method is based on mechanics of materials, according to the intensity calculated initially for the shaft diameter, determined according to the load they bear the heat treatment process, and then check the critical speed and torsion stability. In the strength calculation,
Given the large safety factor taken, so that shaft size is too large, the paper discusses the shaft design process, and in accordance with existing norms of surface treatment to add some way of example, the surface of flange.
Keywords：Shaft, parts, stiffness, strength, surface flange
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