卧式钢筋切断机设计优质毕业设计.doc

摘 要 此次课题设计关键是建筑上广泛使用卧式钢筋切断机, 它关键工作原理是: 应用电动机经一级三角带传动, 二级齿轮传动减速后,带动曲轴旋转,曲轴推进连杆使滑块以及动刀片在切断机机座滑道中作往复直线运动,所以使活动刀片和固定刀片相错而切断钢筋。 与此同时应依据电机工作环境选择电动机类型, 采取卧式安装方法, 防护式电机, 鼠笼式三相异步电动机。选择三级减速, 先是一级带减速, 再采取两级齿轮减速。一级带传动含有缓冲、 吸振、 运行平稳、 噪声小、 合过载保护等优点, 并安装张紧轮。两级齿轮减速关键优点是齿轮传动可用来传输空间任意两轴间动力和运动, 而且含有功率范围大, 传动比正确, 传动效率高, 使用寿命长, 工作安全可靠等一系列特点。动力由电动机输出,经过减速系统传动,把动力输入到实施机构。因为传动系统作 是回转运动,而钢筋切断机实施机构需要直线往复运动,为了实现这种转换,能够采取曲柄滑块机构,盘行凸轮移动滚子从动件机构,齿轮齿条机构。本课题采取曲柄滑块机构作为本机械实施机构?。 关键词: 建筑 切断 齿轮 钢筋 曲柄滑 Abstract The article introduces a kind of architectural lie type steel cutting machines. Its operating principles are: It use electric motors level triangle belt transmission and secondary gear transmission to slowdown. Then, it drives the crank rotate, The crank connected to slide block and moving blades in the slippery way make the back and forth straight line sport, makes the moving blades and the fixed blade shear and cut steel. According to the working environment choice the type of electric motors, using horizontal installation, protection of the electrical, squirrel-cage three-phase asynchronous motor. Option three slowdown, first level belt slowdown, followed by the secondary gear deceleration. First level with the introduction of automated, because it has a buffer, absorb shock and operate smoothly, small noise, and can protect the over loading. Then introduce a secondary gear deceleration slowdown, because gear transmission can be used to transmit arbitrary space between the two axis movement and momentum, and the scope of power, transmission efficient transmission accurately, long using life, such as safe and reliable character. Power output by electric motors through slow down transmission system to import power to the executive body. As the system make rotation movement, The steel cutting machine needs the back and forth straight line sport ,in order to achieve this transformation, we can use c slider-crank institutions or gear and rack. I decided to consider realistic conditions u