【作者】 高超；

【导师】 冯显英；

【作者基本信息】 山东大学 ， 机械工程（专业学位）， 2015， 硕士

【摘要】 作为21世纪的一种先进制造技术,高速切削加工加工技术,有着极为广阔的应用前景。由于高速切削加工加工技术所具有的优势,因此在木材加工行业领域,也有着非常大的应用前景,其高速、高效的性能可以提高加工效率。减少加工中因切削速度过低引起的一系列加工难题,诸如进给速度加快时,刀具容易折断等问题。最近几年以来,由于国内家具及装饰市场的需求,国内木材雕刻机行业也借助良好的机遇获得了迅猛的发展。中国生产雕刻机的产业基地是在山东,而济南又是山东的重中之重,基本上90%以上的木工雕刻机厂家齐聚济南。本课题的研究,正是基于这种背景,本课题进行了用于木工雕刻机床的风冷高速电主轴的开发和性能分析,并进行了有限元的分析,验证设计的可靠性。希望对用于木材雕刻机床的风冷高速电主轴的设计、研发进行有益的探索。本课题的主要研究内容如下：(1)首先对混合陶瓷角接触球轴承的结构、计算相关理论等进行了研究。对陶瓷球轴承的几何学,及赫兹接触理论等进行了分析。完成了混合陶瓷角接触球轴承的轴向预紧与刚度关系计算和变化规律的分析。对后续的方案设计提供了理论和数据支持。(2)其次,对电主轴的总体结构进行了设计。对电主轴的热源进行了分析,设计了新型的散热套。然后根据分析结果,确定了电主轴的冷却方式设计方案。由于木工雕刻机床对于密封性能的要求,经过几种密封方式的特点进行对比,本方案对电主轴的密封结构进行了气封的设计,增加了密封的可靠性。(3)为了验证电主轴的静态刚性,本课题研究时,利用Solidworks三维软件建立了主轴的三维模型,并利用有限元ANSYS软件对电主轴进行了静态分析。经验证,所开发的电主轴静态刚性满足预定设计目标和技术要求。(4)为了检验电主轴的动态刚性是否满足设计要求,本方案利用有限元ANSYS软件对电主轴三维模型进行了摸态分析。验证了其动态刚性满足设计要求。更多还原

【Abstract】 As an advanced manufacturing technology of the 21st century. Processing technology of high speed machining. Has a very broad application prospects. Due to the advantages of high-speed machining machining technology. In the field of wood processing industry. Also has a very large applications. Its high speed,. Efficient performance can improve processing efficiency. Reduce machining cutting. Speed too low caused by a series of processing problems. Such as feed speed,. Tool break easily, and so on. The last couple of years. Due to domestic demand for furniture and decorative markets. Domestic wood engraving machine industry also help. Good opportunity gained rapid development. China engraving machine industry base in Shandong, Jinan, Shandong’s top priority is basically over 90% woodworking machine manufacturers gathered in Jinan.This topic based on this kind of background, carried on has used in the carpentry carving the engine bed the forced-air cooling high speed electricity main axle development and the performance analysis, and has carried on the finite element analysis, the confirmation design reliability. Is for the purpose of to carrying on the forced-air cooling high speed electricity main axle the design research and development to carry on the beneficial exploration.The topic main research content is as follows:(1) Pair of ceramic ball bearing structure and the computation correlation theories have conducted the research. As well as the hertz contact theory has carried on the analysis to the ceramic ball bearing union study. Has completed the bearing axial pre-tight and the rigidity relations computation analysis. Has provided the rationale to the following design calculation.(2) Right Electricity main axle Overall Structure Carried on Design。Has carried on the analysis to the electricity main axle heat source, designed new has dispersed the hot jacket. And has determined the electricity main axle coolant conditions design proposal according to the analysis result. Because the carpentry carves the engine bed regarding the sealing property request, passes through several kind of seal way characteristic to carry on the contrast, this plan has carried on the gas seal design to the electricity main axle seal structure, increased the seal reliability.(3) In order to confirm the electricity main axle the static rigidity, this plan has established the main axle three-dimensional model using the solidworks three dimensional software, and has carried on the static analysis using the finite element ANSYS software to the electricity main axle. Confirmed its static rigidity to satisfy the design request.(4) In order to confirm the electricity main axle the dynamically rigid characteristic, this plan has established the main axle three-dimensional model using the solidworks three dimensional software, and carried on using the finite element ANSYS software to the electricity main axle has traced condition the analysis. Confirmed its rigidity to satisfy the design request.更多还原