摘 要

　　翅片管是金属管外表面绕有薄铝带的螺旋形翅片，并利用翅片进行热交换的换热元件，它是目前国内外公认的高效热交换元件，随着我国空调、制冷业的发展，对翅片管的需求量日益增加，同时也对产品功能、质量、性价比、更新换代周期都提出越来越高的要求。而我国现有的翅片管生产设备多属于半机械、半手工生产方式，生产效率低，产品质量不稳定，不能满足用户要求。要提高翅片管生产设备的性能，靠进口已经不能适应市场竞争的要求，必须针对我国的实际情况，开发满足市场需求的翅片管自动生产设备。

　　本文在对目前国内外翅片管生产设备现状进行研究与分析的基础上，对整个翅片管自动生产设备的设计进行了探讨，通过对翅片管自动生产设备中的重要零部件进行计算选型及校核，完成了翅片管自动生产设备整体结构设计，采用可编程控制器PLC控制步进电机实现不同管径、不同长度钢管螺距的无级变速。

　　本设计主要实现翅片管螺距的无级调速，并可实现程序管理。能够有效地提高企业的生产效率和自动化水平，并*终提高企业在市场上的竞争力。

　　关键词：翅片管自动生产设备，PLC控制电路，传动机构，无级调速

　　ABSTRACT

　　Finned tube is a metal tube with thin aluminum strip around the outer surface of the spiral-shaped fins, and use the heat transfer fin for heat exchange element, it is widely recognized as highly efficient heat exchange components, along with our air conditioning and refrigeration industry The development of the growing demand for finned tube, but also on product features, quality, cost-effective, replacement cycle, increasing demands are made. In China, the existing fin tube production equipment and more a semi-mechanical, semi-manual mode of production, low productivity, product quality is unstable, can not meet user requirements. To improve the performance of finned tube production equipment, rely on imports can not meet the requirements of market competition, must address the actual situation in China to develop to meet market demand for fin-tube automatic production equipment.

　　This article in the fin tube production equipment at home and abroad to conduct research and analysis of current situation on the basis of the fin-tube design of automated production equipment was discussed, through the fin-tube automatic production equipment, the important components in an election conducted type and check to complete the fin-tube design of the overall structure of automated production equipment, programmable controllers PLC controlled stepper motor with different diameters, different lengths of tube of continuously variable pitch.

　　The design of the main implementation of variable speed pitch finne