毕业设计（论文）-小型卧式离心机叶片螺轴结构设计（全套图纸三维）.docVIP

PAGE \* MERGEFORMAT PAGE \* MERGEFORMAT - 2 - PAGE \* MERGEFORMAT PAGE \* MERGEFORMAT - 1 - 毕业设计课题： 小型卧式离心机叶片螺旋轴结构设计 专 业 机械设计制造及其自动化 学 生 姓 名 班 级 学 号 指 导 教 师 专 业 系 主 任 发 放 日 期 2017年 月 日 摘要卧式螺旋卸料沉降式离心机简称卧螺离心机是实现固液分离的关键设备。卧螺离心机工作时,转鼓转速及转鼓与螺旋输料器之间的差速,决定着物料的分离效果和分离效率等,是离心机的重要控制参数。离心机的高效分离性能必须通过完善的自控系统才能得以实现。但分离过程作为典型的复杂工业过程,具有非线性、大时滞、时变、干扰大等特点,无法建立精确的数学模型,至今没有一套完整有效的分离方法。随着离心机设备的要求越来越高,设备不断更新,可靠性、易操作性、可监视性和易维护性己是最基本的要求了。由继电器组成的控制电路具有可靠性差、不易维护、不易监视等缺点,已不能适应当前的要求。随着电子技术、软件技术和控制技术飞速发展,可编程控制器控制已成为国内外的主流控制方式。本文主要对卧式螺旋卸料沉降式离心机的基本生产能力进行了计算求解，卧式螺旋卸料沉降离心机的功率计算与电机选择，摆线针轮差速器设计计算。关键字：卧式、离心机、叶片全套图纸三维加153893706AbstractHorizontal screw discharge sedimentation type centrifuge or horizontal screw centrifuge is the key to realize the solid-liquid separation equipment. Horizontal screw centrifuge, drum rotating speed and differential between drum and spiral feeder losing, determines the separation effect of the material and the separation efficiency and so on, is an important control parameter of the centrifuge. Efficient separation performance of the centrifuge must be through the perfect automatic control system can be realized. But separation process as a typical complex industrial process, with nonlinear, large delay, time-varying, great interference, unable to establish accurate mathematical model, so far there is no a set of complete and effective separation method. As the centrifuge equipment demand is higher and higher, constantly updated equipment, reliability, operability and maintainability, can monitor the sex is the most basic request. Composed of relay control circuit with low reliability, difficult to maintenance, monitoring and other shortcomings, can not meet the requirements of the current. As the electronic technology, software technology and control technology rapid development, PLC control has become the mainstr