双面动平衡机结构设计（本科毕业论文设计）.doc

摘 要

刚性转子的旋转轴线如果与其中心主惯性轴不重合，则此转子是不平衡的，不平衡将会在轴承上产生周期性惯性力，引起振动，甚至损坏机器设备。因此，平衡技术是制约机械工业发展的关键技术之一，动平衡机的研究对工业技术水平的发展具有重要的理论和实际意义。
硬支承动平衡机由于其明显的优越性，已逐渐成为动平衡机发展的主流。本设计以单面立式硬支承动平衡机系统为研究对象，论述了动平衡技术的历史、现状、和发展趋势，以及动平衡机的结构。
通过对单面立式硬支承动平衡机工作原理的分析，确定方案，设计单面立式硬支承动平衡机的机械系统，包括驱动系统和振动系统。本设计说明书包括了驱动系统和支承系统设计的相关计算，以及平衡机重要零部件的校核验算。

关键词： 动平衡机 双面平衡 硬支承 驱动系统 支撑系统













ABSTRACT


Rigid rotor is unbalancing if its axis of rotation is not uniform with its central principal inertia axis. Unbalance imposes cyclic forces on bearings and shafts, producing vibration, even damaging machinery. So, balancing technology is one of keys of machine industry development, research of dynamic balance machine has important significance to improvement of industry technology level on both theory and practice.
Hard bearing balancing machine has gradually become mainstream of development of dynamic balancing machine because of its obvious advantage. To vertical single-plane hard bearing balancing machine, this dissertation describes history, actuality and current of dynamic balancing technology as well as typical structure of balancing machine.
Pass to the analysis of the worked principle of the vertical single-plane hard bearing balancing machine, Design the mechanical system for the vertical single-plane hard bearing balancing machine, include the drive system and the vibratory system. This dissertation also include the
correlative account for the design of the drive system and the vibratory system, and the proofread checking computations of the import accessory of the balancing machine.

Keywords: dynamic balancing machine, double plane balancing, hard bearing, drive system, bearing system




目 录

中文摘要 Ⅰ
ABSTRACT Ⅱ
1绪论
1.1 转子不平衡的主要原因与危害 4
1.2 动平衡机的组成及发展趋势 5
1.3 动平衡机的工作原理 7
1.4平衡工艺与方法简介 8
2双面平衡的力学原理与分析
2.1刚性转子平衡的力学研究 9
2.2转子不平衡的类型 11
2.3 双面平衡的力学依据 14
3 双面卧式平衡机设计
3.1平衡机驱动系统的设计与计算 16
3.2普通V带传动的设计 17
3.3轴承的校核计算 20
3.4轴承的校核计算 21
3.5键的校核计算 22
3.6支承方式 23
3.7 硬支承平衡机的振动系统 24
3.8 平衡机的测量系统 29
参考文献 33