毕业设计（论文）-单层下切式机械剪设计（全套图纸）.docxVIP

武汉科技大学本科毕业设计PAGE PAGE 47摘 要本次毕业设计课题为单层下切式机械剪，设计内容主要是机械剪的传动方案的选择，相关零部件的设计和校核，非标准件的机构设计以及机架上零部件的布置问题。剪切机是轧钢生产线上用于热轧件的切头切尾和薄钢板的定尺长度的剪切，在轧钢生产线上起了非常重要的作用。本设计是经过现场实习，依据平行刀片剪切机生产过程和工作原理。首先对剪切机的最大剪切力以及刀刃行程进行计算选择，然后通过模拟机构选出电动机，再根据工作方式和工作要求对减速器进行了设计，以及减速器的轴和键的强度校核，对各处使用的轴承进行选择和强度校核，最终完成设计。本文主要运用材料力学，机械制图，机械设计，机械原理等内容来设计校核相关的零部件，在现有的图纸资料上进行分析和设计，并绘制出自己的机械剪装配图以及零部件。图纸基本上采用Autocad2007和Caxa二维软件进行绘图。本次设计的目的是根据其要完成的功能来设计机械剪的结构，以使机械剪能满足相应的生产要求，通过理论设计及计算，设计出了剪切质量好、扭曲变形小、工作安全可靠的剪切机。关键字: 剪切机; 减速器; 扭曲变形全套图纸加153893706武汉科技大学本科毕业设计 Abstract The graduation project under the cut for the single mechanical shear, mechanical shear design is primarily aimed at the choice of transmission scheme, the relevant parts of the design and verification, non-standard parts of the body design and chassis parts layout problem. Shearing machine is used for hot rolling production line, cut the first piece of the tail and cut the length of thin steel plate shear length, in the rolling production line plays a very important role.This design is the result of on-site training, according to the parallel shear blade production process and work. First, the maximum shear force shear blade stroke and calculated choice, and then elected by simulating the body motor, and work according to work requirements for the design of gear and gear shaft and the key strength check , on bearings used throughout the selection and strength check of the eventual design.In this paper, the use of materials, mechanics, mechanical drawing, mechanical design, mechanical design principles, etc. to check the relevant parts, drawing on the existing data on the analysis and design, and draw their own mechanical shear assembly drawing and parts. Basically Autocad2007 and Caxa drawing two-dimensional drawing software. The purpose of this design is to be completed in accordance with its function to design the structure of mechanical shear, so that the corresponding mechanical shear to meet production requirements, through