摘    要

随车起重运输车是指装有随车起重机，能实现货物自行装卸和运输的专用汽车。它既有普通载货汽车的运输功能，又具有起重机的起吊装卸功能；除能完成本车货物的装卸之外，还能完成车与车之间的货物装卸。因此，使用随车起重运输车，可以大大提高运输效率，降低运输成本，减轻疲劳强度，保障作业安全，故近年来得到较大发展。随车起重运输车有良好的起重能力和运输能力，具有轻便、迅速、经济等优点,所以对随车起重车的改装是很重要和实用的。
在本次设计主要是对起重装置的设计、计算、选型和校核及改装后整车的性能计算。起重装置是湖北程力汽车有限公司生产的成品，通过计算完成了对起重机的选型以及改装后对整车性能的分析和校核。同时也完成了对液压装置的设计、计算、选型，二类底盘的选择以及其他一些附件的设计计算。二类底盘采用东风小霸EQ1032T51DJ3型底盘，根据东风小霸王原车规定的技术参数对其进行部分改装。改装后对整个底盘进行了安全性校核。
关键词：二类底盘；起重运输车；起重装置；液压装置

ABSTRACT

The accessory lifting transporter means can realize with the accessory crane to handling and transportation of goods specialized automobile. It has both ordinary bills, and      transportation function of car with a crane hookon loading and unloading function; Besides can finish this vehicle goods of loading and unloading besides, still can finish between the car and car cargo handling. Therefore, using the accessory lifting transporters, can greatly improve transport efficiency, reduce the transportation cost, reduce fatigue strength, security work safety, so in recent years to get bigger development. The accessory lifting transporters have good hoisting capacity and transportation capabilities, a lightweight, rapid, economic and other advantages, so for the accessory van modified is very important and useful.
In this design is mainly to the lifting device design, calculation, selection and checking and calculating the performance of modified vehicle. Lifting device is hubei chengli automobile Co., LTD. Is the production of finished products through calculation and completion of the crane selection and adapted to the vehicle performance after the analysis and checking. Also completed the design of hydraulic device, calculation, selection, the choice and other category chassis design calculation of some accessories. By dongfeng little overlord category chassis EQ1032T51DJ3 type chassis, according to the provisions of dongfeng little overlord of car on the part of technical parameters of modifications. For the whole chassis modified the security check.
Key words: Type Chassis；Lifting Truck；Lifting Device；Hydraulic Equipment

 目  录
                     
摘要 ……………………………………………………………………….…Ⅰ
Abstract……………………………………………………………………….Ⅱ
第1章 绪论…………………………………………………………………...1
1.1选题的目的及意义 …………………………………………………………….....1
1.2 随车起重车的发展历史及课题研究现状、发展趋势………………………..….1
1.2.1发展历史……..….………………………………………………………..…..1
1.2.2课题研究现状……………….....………………………………………..……2
1.2.3发展趋势..…………………………………………………………………..……3
1.3本次设计的主要内容、拟解决问题………………………………………...……..4
第2章 总体布置及分析...……………………………………………….……5
2.1总体布置原则…………………………………………………………………..….5
2.2整车基本参数的选择…………………………………………………………..….5
  2.2.1整车尺寸参数…………………………………………………………..……..5
  2.2.2整车质量参数…………………………………………………………..……..6
2.3二类底盘的选型与分析………………………………………………………..….6
  2.3.1总成选型满足要求………………………………………………………..…..6
  2.3.2二类底盘的参数………………………………………………………..……..7
2.4整车总布置………………………………………………………………………...8
  2.4.1起重机的选择………………………………………………………………....8
  2.4.2参数选择…………………………………………………………………..…..8
  2.4.3起吊支腿的设计计算…………………………………………………..……..9
  2.4.4支撑液压缸的计算……………………………………………………..……11
2.5随车起重运输车的结构……………………………………………………….....11
  2.5.1随车起重运输车的结构形式……………………………………..…………11
  2.5.2随车起重运输车的结构特点……………………………………………..…13
  2.5.3回转机构的说明…………………………………………………………..…17
       2.5.4液压传动系统的说明与分析…………………………………………….…17
     2.6本章小结…………………………………………………………………..……..19
第3章 液压装置的参数..……………………………………………….…...20
     3.1 液压传动系统的概述………………………………………………………..…20
      3.2液压传动系统的设计………………………………………………………..…20
        3.2.1液压缸的选型计算…………………………………………………..…….20
        3.2.2液压泵的选型计算……………………………………………………..….23
      3.3取力器的说明与选择………………………………………………………..…25
      3.4本章小结……………………………………………………………………..…27
第4章 随车起重运输车整车稳定性校核……………………………….. ...28
     4.1轴载质量分配…………………………………………………………………...28
        4.1.1起重臂处于驾驶室上方轴载………………………………………..…….28
        4.1.2起重臂处于驾驶室与车厢之间轴载……………………………….....…..30
      4.2稳定性分析…………………………………………………………………..…30
      4.3稳定性校核…………………………………………………………………..…31
      4.4本章小结………………………………………………………………..………33
第5章 随车起重运输车主要性能参数计算………………………..………34
     5.1动力性计算…………………………………………………………………...…34
        5.1.1发动机外特性…………………………………………………………..….34
        5.1.2汽车的行驶方程式………………………………………………………...36
        5.1.3动力性评价指标的计算………………………………………………..….39
        5.1.4整车动力性计算…………………………………………………………...41
      5.2燃油经济性计算……………………………………………………..…………43
      5.3本章小结……………………………………………………………………..…44
结论...……………………………………………………………...……….…45
参考文献……………………………………………………………………...46
致谢...……………………………………………………………………....…47