结晶器振动机构毕业设计(个人毕业设计).doc

PAGE 摘 要 四偏心板坯连铸机快台在连续铸钢中有及其重要的作用。其振动装置用来支撑结晶器，使结晶器上下往复运动，从而使脱模更容易。本设计主要是针对结晶器振动台振动系统的总体设计，其中包括：总体传动方案的设计以及正弦式振动方式的选择；偏心轴材料的选择，结构设计以及轴上零件的布置和装配方案，偏心轴受力分析和校核；偏心轴上零件，如轴承和键的选用及其校核。另外，还包括振动系统其它重要零件如销轴及板弹簧的设计等。 如何对偏心轴上偏心距的设计是每个设计者应该考虑的问题。其中要考虑到不同偏心距对振幅的影响以及振动台是否能实现预定的轨迹。振动方式为正弦振动，可以通过调整振源机构的振幅来调整结晶器的振幅，在设计偏心轴时，要设计不同振幅所需要的不同偏心距。 振动系统是长期使用的，由于所受的是动载荷，容易受到磨损，会减少其使用寿命。故在设计的时候，要考虑其使用年限，尤其是转动的部件，如轴承，偏心轴。 关键词： 结晶器； 振动装置； 偏心轴； 四偏心轮振动机构； 板弹簧  Abstract Four quick sets eccentric slab caster acts a very important role in continuous casting. The vibration device is used to support crystallizer，crystallizer is reciprocated up and down，then it makes stripping easier.The paper mainly aims at the general design of crystallizer vibration table vibration system，including design of general transmission program and selection of the sinusoid vibration mode；selection of eccentric shaft material，the structure design，arrangement and assembly project of elements on shafts，the force analysis and checking of eccentric shafts；selection and checking of elements on eccentric shafts，such as the bearing and key.Moreover，design of other important elements of vibration system is included，such as the pin and plate spring and so on. Every designer should consider how to design the eccentric distance of the eccentric shaft，taking into account the impact of different eccentric distance on amplitude and whether vibration table achieves a prescribed track.The vibration mode is the sinusoidal vibration，amplitude of crystallizer is adjusted by rectifying the amplitude of vibration source mechanism.Designing eccentric shafts，the eccentric distance that different vibration amplitude needs is designed. The vibration system is used for long time.Because it bears the dynamic load，it is easy to abrade，and its service life is reduced.So the service life is considered in the design，especially the rotating components such as bearing and eccentric shaft. Key Words: Crystallizer； Vibration device； Eccentric shaft