1、 本科生毕业设计本科生毕业设计 题题 目目 钢带开卷机钢带开卷机 系系 别别 机械系机械系 专专 业业 机械设计制造及其自动化机械设计制造及其自动化 学生姓名学生姓名 二一四二一四 年年 四四 月月 三十三十 日日 I 钢带开卷机设计钢带开卷机设计 摘摘 要要 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
2、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：关键词：开卷机 四棱锥 液压系统 倒锥式 II Strip uncoiler Abstract Uncoiler strip production is the main equipment, the coil open to shear, equality in the school, is
3、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
4、 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,
5、 tail hook in pyramidal shaft under the action of axial force component 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 i
6、nverted 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. III 目目 录录 1 绪论. 1
