中文摘要随着近些年绞车制造技术的不断改善提高、加工原材料的不断改进和电子控制技术的不断改进发展，绞车在安全、动力和节能等方面取得了比较大的进步。目前绞车普遍的应用于工程机械、船舶运输、海洋石油、建筑机械、矿山机械、深海探测等诸多工程领域。缆绳越来越长、张力越来越大，绞车的速度控制精度、缆绳的有效保护成为这一研究领域的瓶颈。50903

论文首先对绞车的发展和历史做了详细的阐述。其次从国内外的发展状况进行剖析。在整体机构设计中详细介绍了绞车如何通过缆绳与绞车卷筒轮之间的摩擦从而降低缆绳上的张力。然后，对该设计结构进行相应的理论计算。论文随后从软件部分着手，用三维软件画出设计结构的立体模型，并附有相应的软件和图文资料。最后，论文提出对绞车减张力结构设计制作的完善和改进，给出相应总结，并对该课题的发展作了展望。

毕业论文关键词：绞车；卷筒；摩擦力；磁粉制动装置；释放张力。

Abstract With the continuous development of continuous improvement, constantly improve processing materials currently winch manufacturing technology and electronic control technology, winch has made great progress in the power, safety and energy saving etc.. At present, the winch is widely applied in the engineering machinery, construction machinery, mining machinery, shipping, offshore oil, deep-sea exploration and other fields. More and more long, the cable tension is more and more big, the effective protection of the winch speed control precision, the bottleneck in this research field.

Firstly, the development and history of the winch is described in detail. Secondly, analysis from the development status at home and abroad. In the overall mechanism design is introduced in detail introduces how to reduce the winch cable tension through friction between cable and winch drum wheel. Then, the corresponding theoretical calculations of the structure design, size calibration. Then, from the software part, using 3D software to draw the three-dimensional model design structure, together with the corresponding software and information. Finally, the paper on the winch to reduce tension structure design 

Keywords:winch;drum;the friction;magnetic powder brake ;to release tension. 

目    录

第一章  绪论 1

  1.1 绞车的发展历史 1

  1.2 绞车的应用 1

  1.3 绞车应用中应具备的特点 2

  1.4 绞车的分类 3

  1.5 绞车的结构 5

  1.6 本次设计的任务与主要内容 6

  1.7论文的选题意义和目的 6

  1.8绞车近些年国内外的研究现状和存在的问题 7

  1.9本次研究的要求 7

第二章  总体方案的选择与分析 8

  2.1 张力释放机构的工作原理 8

  2.2 缆绳上受力分析的研究 10

  2.3 主驱动和张力释放系统 12

第三章  动力设计计算及选型 14

第四章  主要零部件的计算和选型 18

  4.1轴上载荷的校核计算 18

  4.2轴承的校核计算