摘要本文简要介绍了起重机的结构和特点，进行了总体方案的设计及各臂的伸缩原理计算，并对起重机各部零件进行了校核。设计思想是根据目前市场上实际装卸劳动强度较大而又不能用机械的方式来替代的或不具备机械条件装卸的情况下来进行设计。本文重点介绍了起重机的三维建模和伸缩部分的设计。49604

本次设计主要内容和要求：设计出一个简易手动起重装置，起吊重量为100kg，绘制出起吊装置的装配图。通过计算分析，确定每节臂的见面形状以及截面尺寸，设计每节臂的具体结构和臂之间的连接方式，其设计思想轻便灵活可折叠式起吊装置,所以选用手动代替电机吊起重物。其中以臂的设计最为重要。

毕业论文关键词：随车起吊装置；伸缩臂；手动

Abstract This article is briefly introduced with the vehicle the hoist crane structure and the characteristic, the system design with the vehicle hoist crane performance index as well as the principle computation which has expanded and contracted about various arms. Design idea is based on actual loading and unloading on the market at present labor intensity bigger and can't use mechanical way to replace or don't have the mechanical condition of loading and unloading down for design. This article includes the crane of 3D modeling and telescopic part of the design.

This design main content and request: Design a simple manual lifting device, hoisting weight of 100 kg, rendering the lifting equipments of the assembly drawing. Through the analysis and the computation, I determined each arm the section size and the section shape, design each arm between the concrete structure and the arm connection way, The design idea of deft and agile can folding lifting equipments, so choose manual instead of motor lift the weight. Thought especially the arm design is most important, regarding this I with emphasis considered.

Key words:   With the vehicle hoist crane ;Expands and contracts the arm ; manual 

 目录

第一章  绪论 1

1.1 概述 1

1.2 随车起吊装置的主要分类 1

1.3 国内外汽车起吊装置的发展 1

1.3.1 国外发展现状 1

1.3.2 我国发展现状 2

1.3.3 随车起重机的发展趋势 3

第二章  随车起重机的性能参数 9

2.1 性能参数 9

2.2 计算载荷与设计方法 10

第三章  悬梁折叠式汽车起吊装置的三维建模 13

3.1 对SOLIDWORKS软件的基本功能的介绍 13

3.2 方案一的建模 13

3.3 方案二的建模 14

第四章  各部件的设计与校核 16

4.1 各臂长的计算 16

4.2 吊臂截面的选择 17

4.2.1 基本臂的设计 24

4.2.2 第二节臂的设计（h=190mm，b=120mm） 26

4.2.3 第三节臂的设计（h=178mm，b=108mm） 28

4.3 耳板及轴销的设计 30

4.3.1 耳板校核 30

4.3.2 立柱与基本臂铰接处轴的校核