【作者】 王长虎；

【导师】 吴晓光；

【作者基本信息】 武汉纺织大学 ， 机械电子工程， 2012， 硕士

【摘要】 纺织行业是我国重要的传统行业，每年出口量很大，解决很多人就业。针织行业在纺织行业中地位非常重要，由于我国关键核心器件还无法突破，高端针织机械几乎完全依赖进口。研究了传统提花大圆机的结构及其工作原理，对针织提花机选针机构进行了分析，阐述了选针机构工作原理。结合电磁体与永磁体的基本磁理论，研究了电磁-永磁悬浮模式的磁悬浮织针理论，分析了磁悬浮式织针的受力情况与频率。在磁悬浮式织针装置中，最主要的由传感器、织针和电磁装置组成，在进行织针装置的整体设计时，必须合理地设计各部分之间的结构。建立了磁悬浮式织针装置的悬浮模型，对磁悬浮织针系统的驱动关系进行了分析研究，分析了磁悬浮式织针的运动情况。进行了有限元法理论研究，研究其基本思想，介绍了有限元分析软件ANSYS，对温度场以微原体的方式进行了分析研究，把热分析与磁悬浮驱动织针系统有机的结合在一起，利用ANSYS软件对装置进行热分析、热设计及数据处理。运用ANSYS对电磁装置中的线圈发热进行了模拟，得到了热量的分布情况。利用ANSYS软件对织针与径向支撑的摩擦进行有限元热分析，分析了摩擦热的生成情况。分析研究了各种常用的散热方式，主要有气冷散热，水冷散热，热管散热等几种常用的散热方式。研究了液冷散热技术的工作原理，选择水冷散热作为选针系统主要的散热方式，研究分析了水冷散热器工作原理，建立了水温求解数学方程，进行了散热器水管流场仿真的研究分析。更多还原

【Abstract】 Textile industry is a very important pillar industries, with large economic scale and huge employed population. Knitting industry has played a very important position in the entire textile industry, but the current high-end knitting machines are almost entirely dependent on imports, because our country can not break through the technology of core device.I studied traditional jacquard big c ircular machine of the structure and working theory, and analyzed jacquard knitting needle institutions,and studied the needle selection principle of institution work. Combined with magnets and the permanent magnet basic magnetic theory, the paper researches the electromagnetic suspension model of permanent magnet-maglev knitting theory, and this paper analyses the maglev type knitting the stress and frequency. In the maglev type knitting device, the main device are sensors, knitting and electromagnetic device component, in knitting the integral design of the device, must be reasonable design between the parts of the structure.This paper has proposed electromagnetic-permanent magnetic suspension according to the basic principles of needle-selection technology and magnetic suspension technology, built a mathematical model and transfer function for this suspension mode, analyzed the relationship between various parameters and initially established the basic suspension theory. Meanwhile, the generating process of friction heat and electromagnetic heat of suspension needle device is analyzed by using finite element software. I studied the basic idea of finite element theory, and this paper introduced the finite element analysis software ANSYS,and established the maglev type driving knitting heat conduction mathematical model of temperature field in the way of the original body, the steady state thermal analysis and study the transient thermal analysis, the thermal analysis and magnetic levitation drive knitting system organic unifies in together, by ANSYS software device in the thermal analysis & design and data processing. Using ANSYS electromagnetic device of the coil heating are simulated, and got the distribution of heat. Analysis and studied some common cooling way, basically have air cooling, water cooling, heat pipe heat dissipation of several common cooling mode. The cooling technology works cooling fluid, and choosed water cooling system as needle selection of the main cooling mode, and studied the water cooling radiator working principle, and established the mathematical equations solving the water temperature, and researched the radiator pipe flow field simulation.更多还原