机械设计制作及其自动化毕业设计-钢带开卷机设计.doc

本科生毕业设计
题目钢带开卷机
系别机械系
专业机械设计制造及其自动化
学生姓名
学号年级 2010
指导教师
二Ο一四年四月三十日
钢带开卷机设计

专业:机械设计制造及其自动化
学生: 指导老师:
摘要
开卷机是板带生产的主要设备,将卷钢放开进行剪切、校平等,便于生产、运输和储存。
本设计为四棱锥胀缩式开卷机,该机由电动机经减速器带动空心轴及套与其中的四棱锥,四棱锥由油缸驱动,前后移动,从而胀缩套与其上的扇形板,使卷取的带钢胀紧或松开。正常润滑条件下利用胀缩缸的工作压力来实现卷筒的自动缩径。
卷筒的薄弱环节是扇形块的尾钩,尾钩在棱锥轴轴向分力的作用下会产生很高的弯曲和剪切应力,易于疲劳所怀。并且,正锥结构使主轴和胀缩缸的连接螺栓处于不利的受力状态。本次设计的四棱锥开卷机采用倒锥式,显著改善了上述零件的受力状况,扇形块结构也得到简化。
本设计中对油箱、液压缸等进行了详细计算,并且对其中的油箱和液压缸进行了设计。
关键词:开卷机四棱锥液压系统倒锥式
Strip uncoiler
Major:Mechanical design, manufacturing and automation
Student:Tang Yu Supervisor:Deng Xingqiao

Abstract
Uncoiler strip production is the main equipment, the coil open to shear, equality in the school, is advantageous for the production, transportation and storage.
After the design used in single stand cold rolling mill, for rectangular pyramid swell-shrink uncoiler, the machine by motor through a gearbox drives hollow shaft and sleeve with four of the pyramid, rectangular pyramid driven by hydraulic cylinder, before and after the move, and swell-shrink set with fan-shaped plate, make coiling strip wrapped tight or loose. Under the condition of normal lubrication swell-shrink cylinder pressure is used to implement automatic reducing roll.
Drum of the weak link is fan-shaped dollop of tail hook, tail hook in pyramidal shaft under the action of axial ponent can produce high bending and shear stress, fatigue was easily. And, positive cone structure makes the connection of main shaft and swell-shrink cylinder bolt in the adverse stress state. The design of rectangular pyramid using inverted cone decoiler, significantly improve the stress state of the above parts, fan block structure has been simplified.
In this design to the fuel tank, hydraulic cylinder, such as a detailed calculation, and has carried on the design to the fuel tank and hydraulic cylinder.
Key words: coiler the four pyramid Hydraulic System inverted cone.
目录
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