电动葫芦的设计毕业论文.doc

摘要 电动葫芦是一种最普通的成批生产的电动起重机械。由于它具有尺寸小，重量轻.结构紧凑,操作维修方便等特点，所以广泛使用于冶金、机械制造、化工、建筑、林业、交通、轻工、国防、水电等国民经济部门。它是集电动机，减速器和钢丝绳卷筒（或环链）为一体的小型起重设备，配合单梁桥式或门式起重机，组成一个完整的起重机械。近年来，我国电动葫芦的发展速度很快，但和国外同类产品相比，存在很大的差距。 本设计首先分析了国内外电动葫芦的发展状况，比较其差别，从而最终确定了对传统圆柱齿轮减速器的改进。目的就是为了提高生产率、合理使用设备、节省劳动力，实现在转速的连续变化和在任意传动位置下的稳定运转，适应自动化、智能化、集成化和信息化的发展趋势。通过综合比较分析各种传动装置，最终选定了环锥行星无级变速器传动装置，选定钢丝绳，计算和校核卷筒，选择和校核电动机，最终完成电动葫芦的设计计算。 关键词：电动葫芦 减速器 环锥行星无级变速器 ABSTRCAT Electric hoist is a kind of the most ordinary electric hoisting machinery which is always produced in mass. It’s small in size, light in weight, and compact in structure; therefore it’s widely used in Civilian Economic Departments, such as metallurgy, machine manufacture, chemical industry, building, forestry, transportation, light industry, national defense, water and electricity. It’s a small hoisting equipment includes the electric motor, reduction gear and rope reel (or link chain). It can form a complete lifting appliance associated with single-beam bridge or door Cranes. In recent years, the development of electric hoist has been growing very fast in our country, but compared with the similar products of the other country, there’s still a big disparity. This design first analyzed the domestic and foreign electric hoists development conditions, through the comparison of their differences I finally decided to improve the tradition cylindrical reduction gears. The purpose of doing this is to raise the productivity, to use the equipment appropriately, to save the fragrant power reasonably, to realize steady running in the rotational speed continual change and under the random transmission position, and to suit the tendency of automation, intellectualization, integration and informationization. Through the comparative analysis of each transmission device, I finally selected transmission device of a Trephine planet variator, and wire rope; calculated and checked drum; selected and examined electric motor; and finally completed the calculation the elect