磁力冲击式电锤的设计及性能分析

发布时间：2018-05-21 14:27

本文选题：磁力冲击式电锤 + 磁力冲击机构　；参考：《浙江大学》2012年硕士论文

【摘要】：电锤产品在实际应用过程中工况较为复杂,因此对电锤各项性能指标要求均很高,而国产电锤普遍存在较多质量问题,主要表现为连续工作时间短、易发热、易磨损以及振动噪声大等方面。本文将磁力冲击技术引入电锤产品中,提出一种新型磁力冲击式电锤,能够通过磁力冲击机构来实现冲击部件的往复冲击运动。与传统的电锤产品相比,磁力冲击式电锤具有无摩擦磨损、结构简单、噪声震动小、环保无污染等优点。结合国家自然科学基金项目、浙江省重大科技专项和企业需求,本文对磁力冲击式电锤的结构进行了具体的设计,对其冲击性能进行了深入的研究与分析,并且开展了冲击机构主要参数的分析与优化设计等研究工作。全文共分为六章：第1章阐述了课题的背景及研究意义,并归纳总结了电锤类产品、磁力传动技术、磁场数值分析方法的国内外研究现状,分析了研究磁力冲击式电锤的必要性以及可行性；第2章介绍了磁力冲击式电锤的基本原理,对磁力冲击式电锤的具体结构进行设计,主要包括磁力冲击机构以及齿轮传动机构等各部件的结构设计；第3章根据电磁场有限元基本理论,建立了磁力冲击机构的三维有限元模型,分析了静态下冲击机构的磁场分布以及受力情况,在此基础上运用APDL语言对整个动态冲击过程中的受力情况进行了循环计算；第4章分析了磁极对数、磁体分布角度、最小间隙、磁体半径、磁体厚度等设计参数对磁力冲击机构的冲击性能的影响,通过构建二次响应面代理模型,对设计参数进行了优化；第5章搭建了实验平台,对磁力冲击机构永磁体之间的受力进行了测试,验证了仿真模型的正确性,并介绍了样机制作的过程；第6章对全文进行了总结,并对下一步研究工作进行了展望。
[Abstract]:The working conditions of electric hammer products are more complicated in the practical application process, so the requirements for various performance indexes of electric hammer are very high. However, there are many quality problems in domestic electric hammer, which mainly show that the continuous working time is short and the heat is easy to be generated. Easy to wear and vibration and noise and other aspects. In this paper, the magnetic impact technology is introduced into the electric hammer products, and a new type of magnetic impact hammer is proposed, which can realize the reciprocating impact movement of the impact parts through the magnetic impact mechanism. Compared with the traditional electric hammer, the magnetic impact hammer has the advantages of no friction and wear, simple structure, low noise vibration, environmental protection and no pollution. Combined with the project of National Natural Science Foundation, Zhejiang Province's important science and technology project and enterprise demand, this paper has carried on the concrete design to the magnetic impact type electric hammer's structure, has carried on the thorough research and the analysis to its impact performance. The analysis and optimization of the main parameters of the impact mechanism are also carried out. The full text is divided into six chapters: Chapter 1 describes the background and significance of the research, and summarizes the domestic and foreign research status of electric hammer products, magnetic drive technology, magnetic field numerical analysis methods, and analyzes the necessity and feasibility of the research on magnetic impact hammer. Chapter 2 introduces the basic principle of magnetic impact hammer, and designs the structure of magnetic impact hammer, including the structure design of magnetic impact mechanism and gear transmission mechanism. In chapter 3, according to the basic theory of electromagnetic field finite element, the three-dimensional finite element model of magnetic shock mechanism is established, and the distribution of magnetic field and the force of the mechanism under static condition are analyzed. On this basis, the cyclic calculation of the force during the whole dynamic impact process is carried out by using APDL language. In chapter 4, the effects of design parameters such as logarithm of magnetic pole, angle of distribution of magnet, minimum gap, radius of magnet and thickness of magnet on the impact performance of magnetic shock mechanism are analyzed. A quadratic response surface agent model is constructed. The design parameters are optimized. In chapter 5, the experiment platform is built, the force between permanent magnets of magnetic shock mechanism is tested, the correctness of simulation model is verified, and the process of making prototype is introduced. Chapter 6 summarizes the full text and looks forward to the next research work.
【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH122

【引证文献】