机械毕业设计论文电动螺旋起重机设计电动举高器全套图纸

精品文档---下载后可任意编辑图书分类号：密 级：螺旋起重机又称为螺旋升降机，它的原型就是我们所常见的千斤顶。它具有结构紧凑、体积小、重量轻、动力源广泛、无噪音、安装方便、使用灵活、功能多、配套形式多、可靠性高、使用寿命长等许多优点。可以单台或组合使用，能大致控制调整提升的高度，可以用电动机或其他动力直接带动，也可以手动。电动螺旋起重机基本原理是利用电机，通过减速器减速后，带动螺母旋转，转化为丝杆的轴向运动，从而推动物体上升。主要内容如下：对千斤顶的原理和螺旋起重的原理、方法进行了讨论；设计螺旋起重机构；选择电动机；设计减速机构；控制电路的设计；简要阐述在流水线作业中，螺旋千斤顶的动作原理等。关键词 千斤顶；电动；螺旋传动全套图纸，加 153893706AbstractThe spiral crane is also known as the spiral screw lift crane .Its prototype is the jack as we common see. Its advantages as follows: small size, light weight, extensive power source, no noise, ease of installation, flexible, multi-function, supporting forms, high reliability and long service life, and so on. It can be used single or in combination, and can generally control the height.Motor can be used directly or other power driven, besides ,it can also be manually.And the basic principle is that the motor drives the rotary nut through the deceleration agencies, screw into the axial campaign, and thenlift the objects .The main contents as follows: research the principle of spiral jackand the principlesand methods of the spiral lifting, design the agencies of spirallifting; motor choice; design deceleration agencies; select keys and bearings, design the control circuit; describethe principle of the screw jack on the assembly line operation.KeywordsSpiral jack ElectricalSpiraldrive精品文档---下载后可任意编辑目 录1 绪论 11 .1 千斤顶的 进展 现状 1 .2 千斤顶的 分 类 2 设计方案 的 确定 2 .1 螺旋传动设计方案 螺旋传动概述 螺旋传动方案的 确 定 2 .2 减...