【摘要】：傳統(tǒng)針織裝備在編織過程中采用機械式選針原理,選針機構與編織機構因機械動作而產生沖擊與摩擦,因而在現(xiàn)有機械式選針方式中進一步提高針織圓緯機效率將受到限制。本文提出一種磁懸浮驅動織針原理模式,實現(xiàn)“以電代機”的“零傳動”織針模式,從工藝原理上消除了機械結構中的剛性接觸、沖擊、摩擦等影響。本文研究是在國家自然科學基金項目(51305309)的資助下,基于以磁懸浮式驅動針織原理基礎上,針對針織圓緯機關鍵技術展開研究,其重點研究內容有:分析驅動織針受力模型,建立電磁驅動磁力模型,通過數(shù)值計算與實驗測量驗證了理論推導的有效性;建立線圈結構與磁力耦合關系模型,分析和求解不同驅動結構下磁力分布規(guī)律;通過遺傳算法,結合蒙特卡羅方法優(yōu)化驅動尺寸與結構,由數(shù)值計算與有限元計算比較驗證優(yōu)化后的驅動結構的合理性;使用高導磁筒壁束縛驅動組件磁場,解決驅動組件間磁場相互耦合問題,通過對磁路分析說明了高導磁筒壁的作用機理,分析了高導磁筒壁對磁力分布的影響,并提出解決方案,通過有限元仿真驗證了解決方案的可行性。本文搭建了高速磁懸浮驅動織針實驗平臺及實驗樣機,通過實驗樣機調試其結果證明磁懸浮驅動織針原理、理論分析及設計方法符合針織圓機性能要求,為進一步開展磁懸浮驅動針織圓機實用化提供技術支持。
[Abstract]:The traditional knitting equipment adopts the principle of mechanical needle selection in the process of knitting. The needle selecting mechanism and knitting mechanism produce impact and friction because of mechanical action, so it will be limited to further improve the efficiency of knitting circular weft knitting machine in the existing mechanical needle selection mode. In this paper, a principle mode of magnetic levitation driven needle weaving is presented, which realizes the "zero drive" needle mode of "electric replacement machine", which eliminates the influence of rigid contact, impact and friction in mechanical structure from the principle of technology. Based on the principle of maglev driven knitting and supported by the National Natural Science Foundation of China (51305309), the key technology of circular knitting machine is studied in this paper. The main research contents are as follows: analyzing the force model of driving knitting needle, The electromagnetic driving magnetic force model is established, and the validity of the theoretical derivation is verified by numerical calculation and experimental measurement. The coupling model of coil structure and magnetic force is established, and the distribution of magnetic force under different driving structures is analyzed and solved. Through genetic algorithm and Monte Carlo method to optimize the drive size and structure, numerical calculation and finite element calculation are compared to verify the rationality of the optimized drive structure. The magnetic field of the high magnetic cylinder wall is used to solve the problem of magnetic field coupling between the driving components. Through the analysis of magnetic circuit, the mechanism of the high magnetic conductivity cylinder wall is explained, and the influence of the high magnetic tube wall on the magnetic force distribution is analyzed. The feasibility of the solution is verified by finite element simulation. In this paper, the experimental platform and prototype of high speed maglev driven knitting needle are built. The results of debugging the experimental prototype prove that the principle, theoretical analysis and design method of magnetic levitation drive needle can meet the performance requirements of circular knitting machine. It provides technical support for further practical application of maglev driven circular knitting machine.
【學位授予單位】：武漢紡織大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TS183.41

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本文編號：2295568