《毕业设计（论文）-汽车升降尾板的结构设计（全套图纸）》由会员分享，可在线阅读，更多相关《毕业设计（论文）-汽车升降尾板的结构设计（全套图纸）（47页珍藏版）》请在金锄头文库上搜索。
1、宁XX大学毕业设计(论文) 汽车升降尾板的结构设计所在学院专 业班 级姓 名学 号指导老师 年 月 日摘 要本文介绍了汽车升降尾板国内形势和发展趋势，从系统设计，系统的分析和设计的主线出发，突出整体设计的机械系统动力学探索体系统动力学建模技术集成分析系统控制和其他问题明确的选择和确定具体的执行机构，所述数学模型，通过产生机构尺寸控制和调整的模型参数的模型表示出来的特性的基础上，在此项目中的焦点一系列经过反复探索，展示了最终建立有针对性的方法，使用相结合的理论分析比喻是更方便的解决方案处理车辆液压升降调节器设计问题。全套图纸，加153893706 本文介绍了平面连杆机构介绍的方法求解最优设计方法
2、和工程设计问题，基于对车辆的汽车升降尾板降驱动力分析的一般过程，一般设计时要考虑清楚在体内的主要因素模拟的数学模型，提供了可靠的基础，该模型通过建立机构有权确定目标函数，以确定运行的计算机优化程序，用于车辆装卸过程中的制约是完整的液压升降调节器优化设计结果，以证明使用此测试平台的可靠性，通过实验计算出的值与实际测量值的比较分析证实，该计算值是可靠的方式获得的，通过改变一些参数的优化结果和在同一时间存在致动器考虑液压控制系统的影响因素，以调整和完善执行机构应确定。 本液压系统以传递动力为主，保证足够的动力是其基本要求。另外，还要考虑系统的稳定性、可靠性、可维护性、安全性及效率。其中稳定是指系统工
3、作时的运动平稳性及系统性能的稳定性(如环境温度对油液的影响等因素)。可靠性是指系统不因意外的原因而无法工作(如油管破裂、无电等情况)。可维护性是指系统尽可能简单，元件尽可能选标准件，结构上尽可能使维护方便安全性是指不因液压系统的故障导致后车厢盖的其它事故效率是指液压系统的各种能量损失尽可能的小。上述要求中，除满足系统的动力要求外，最重要的是保证系统的安全性和可靠性。关键词：液压系统，升降机构46AbstractThis article describes the car handling hydraulic lifts domestic situation and development tr
4、end , this departure from the system design to system analysis and design of the main line , highlighting the overall design of the mechanical system dynamics to explore body system dynamics modeling techniques integrated analysis system control and other issues clear choices and determine the speci
5、fic implementing agency is the focus of this project on the basis of the characteristics of the actuator according to the actuator models that come out with the same mathematical model to control and adjust the model parameters through generating mechanism dimension series after repeated exploration
6、 demonstrated the eventual establishment of a targeted approach using a combination of theoretical analysis analogy is more convenient solution to vehicle handling hydraulic lift actuator design problems.This paper introduces the general design of planar linkage overview of the methods for solving t
7、he optimal design methods and the general process of engineering design problems Based on vehicle handling hydraulic lift actuator force analysis made clear in the body of the main factors to consider when modeling a mathematical model for the right to provide a reliable basis for the model through
8、the establishment of institutions to determine the objective function to determine the constraints running computer optimization procedures for vehicle loading and unloading process is complete hydraulic lift actuator optimal design results in order to prove the reliability of this test platform for
9、 the use of existing by changing some parameters of the optimization results for the calculated value by experiments and the actual measured value obtained by comparative analysis confirmed that this calculated value is reliable and at the same time that the actuator should be determined considering
10、 the influence factors of the hydraulic control system to adjust and improve executive body。The hydraulic system to transfer power, ensure adequate power is its basic requirement. In addition, consider the system stability, reliability, maintainability, safety and efficiency. The stabilizing means w
11、hen the system works steady motion and system performance stability (such as environmental temperature on the influence of oil etc). Reliability refers to the system is not due to accident reason to work ( such as tubing rupture without electricity, etc. ). Maintainability is referred to the system
12、as simple as possible, element is chosen as far as possible standard parts, structure as much as possible so that the maintenance is convenient. Security is not due to the fault of the hydraulic system causes the antenna frame collapse or other accidents (such as the drop out of control, antenna due
13、 to gravity acceleration whereabouts ) . Efficiency refers to the hydraulic system of the various energy loss as small as possible. The above requirements, in addition to meet the power requirements, the most important thing is to ensure the safety and reliability of the system.Keywords: hydraulic s
14、ystem, lifting mechanism目 录摘 要IIAbstractIII目 录V第1章 绪论11.1课题研究的目的11.2 研究现状11.3 本课题的研究内容2第2章 汽车升降尾板机构方案分析32.1 方案一32.2方案二42.3 方案三42.4方案四52.5 方案确定5第3章 汽车升降尾板机构机械结构设计73.1 汽车尾部参数73.2 尾板尺寸设计83.3 设计尺寸93.4 机构运动分析103.5 受力分析133.6 液压原理图15第4章 液压系统设计计算174.1 主液压缸的设计174.2 副液压缸的设计204.3 活塞的设计224.4 导向套的设计与计算234.5 端盖和缸
15、底的设计与计算244.6 缸体长度的确定264.7 缓冲装置的设计264.8 排气装置264.9 密封件的选用284.10 防尘圈304.11 液压缸的安装连接结构31第5章 液压泵的参数计算32第6章 电动机的选择33第7章 液压元件的选择347.1 液压阀及过滤器的选择347.2 油管的选择357.3 油箱容积的确定36第8章 验算液压系统性能368.1 压力损失的验算及泵压力的调整368.2 液压系统的发热和温升验算39总结41参考文献42致谢44附 录第1章 绪论1.1课题研究的目的20世纪60年代以来，随着不断变化的社会运输需求，社会显著提高生产力水平，传统的处理方式已经无法满足人们的需求，也是货运物流的快速增长，货物装卸也将增加的量的大吨位货车或平板车，因为货物质量大，客舱地板离地面高，全国交通逐渐转移速度快，效率高，成本低，运输的发展方向已逐渐走向专业化方向。在此基础上，车辆装卸升降尾板是运输行业的快速发展的产物。它属于一种新型的运输和装卸工具，近年来在中国的大部分地区被广泛使用，如电信，铁路，航空，水利，电力，矿山，商业，军工等行业。汽车升降尾板，装卸货运汽车已经改变了一
