设计描述：

文档包括:
说明书一份，22页，月12000字

CAD版本图纸共10张

450t门式起重机起升机构设计

    摘   要：在激烈的起重机制造行业，为占领制高点，许多起重机制造厂商广泛采用先进的生产工艺，模块化设计等等，以期在满足用户需求要求的同时能够最大程度的降低生产制造成本。文章旨在龙门起重机起升机构设计。在绘制机械制图时，运用计算机绘制了起升机构总图和卷筒总成图。这样对起重机设计有一个更好的了解。设计重点在于对钢丝绳、卷筒、电动机、减速器、制动器、联轴器的选型，同时对电动机发热、起制时间等进行校核。起重机的分类方法有多种，常见的是按起重机体型特点来分类。如桥式起重机、门式起重机、门座起重机、塔式起重机、汽车起重机、铁路起重机、桅杆起重机、缆索起重机等。门式起重机是桥式起重机的一种变形。在港口主要用于室外的货场、料场货、散货的装卸作业。它的金属结构像门形框架，承载主梁下安装两条支脚，可以直接在地面的轨道上行走，主梁两端可以具有外伸悬臂梁。门式起重机具有场地利用率高、作业范围大、适应面广、通用性强等特点，在港口货场得到广泛使用。
    关键词：龙门起重机；起升机构；电动机；

The Design of 450t Door Crane Hoisting Mechanicsm

  Abstract: In the crane manufacturing industry, to occupy high ground, many manufacturers of gantry crane adopt advanced technology, modular design, so as to meet needs of customer and reduce manufacturing cost at the greatest extent. This article aims to the design of the gantry cranes systems and the overall stability, especially for the design and calculation of lifting mechanism. In drawing, we do not only complete the map of total machine by hand-draw, and also use computer to draw the total plan of the hoisting mechanism and reel assembly. Thus,we can get a better understanding of the gantry crane design.This article focuses on the design of steel wire rope, roller, motor, reducer, brake, coupling selection,at the same time, make the calibration of motor heating, starting and braking time, the overall stability.The classification of crane there are many methods, common in size characteristics to crane classification. Such as bridge cranes, door crane, tower cranes, cranes, railway crane, crane, the cable crane, mast.Door crane bridge crane is a kind of deformation. In the port of loading bays, mainly used in outdoor yard, bulk goods of loading and unloading. Its metal door frame structure as shape, bearing under article install two main girder supporting feet, can be directly in the ground track walk, the main girder ends can have overhanging the cantilever beam. Door crane with high efficiency and the homework range, wide adaptability, strong commonality and other characteristics, widely used in port loading bays.
    Key words: Gantry crane;Hoisting mechanism;Motor.

目   录

摘 要 1
     关键词 1
     1 前言 2
     1.1 起重机的发展现状 2
     1.2 课题的研究目的和意义 3
     1.3 梁场专用450t门式起重机工作特点 3
     1.4 本文所要做得主要工作 3
     2 设计要求 4
     2.1 参数设计 4
     2.2 设计标准 4
      3 起升机构设计计算 5
     3.1 概述 5
     3.2 钢丝绳的选择 5
     3.3 卷筒设计 7
     3.4 电动机选择 10
     3.5 开式齿轮传动的设计计算： 12
     3.6 减速器选择 13
     3.7 高速轴连轴器选择 13
     3.8 低速轴联轴器选择 13
     3.9 制动器 13
     3.10 液压失效保护制动器 15
     3.11 机构起动时间计算 15
     3.12 零件疲劳计算 16
     4 结束语 18
     参考文献 19
     致谢 20