车载轮椅升降机设计

喜欢这套资料就充值下载吧。资源目录里展示的都可在线预览哦。下载后都有，请放心下载，文件全都包含在内，有疑问咨询QQ:414951605 或 1304139763 摘 要 本文介绍了车载轮椅升降机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。 本文介绍了平面连杆机构介绍的方法求解最优设计方法和工程设计问题，基于对车辆的车载轮椅升降机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 5 附 录 Abstract This article describes the car handling hydraulic lifts domestic situation and development trend , 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 specific 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 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 the 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 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 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 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 when 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 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 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 system, lifting mechanism 目 录 摘 要 II Abstract III 目 录 V 第1章 绪论 1 1.1课题研究的目的 1 1.2 研究现状 1 1.3 本课题的研究内容 2 第2章 车载轮椅升降机机构方案分析 4 2.1 方案一 4 2.2方案二 4 2.3 方案三 5 2.4方案四 5 2.5 方案确定 6 第3章 车载轮椅升降机机构机械结构设计 7 3.1 汽车尾部参数 7 3.2 尾板尺寸设计 7 3.3 设计尺寸 9 3.4 机构运动分析 9 3.5 受力分析 13 3.6 液压原理图 15 第4章 液压系统设计计算 17 4.1 举升液压缸的设计 17 4.2 关门液压缸的设计 20 4.3 活塞的设计 22 4.4 导向套的设计与计算 23 4.5 端盖和缸底的设计与计算 24 4.6 缸体长度的确定 26 4.7 缓冲装置的设计 26 4.8 排气装置 26 4.9 密封件的选用 28 4.10 防尘圈 30 4.11 液压缸的安装连接结构 30 第5章 液压泵的参数计算 32 第6章 电动机的选择 32 第7章 液压元件的选择 34 7.1 液压阀及过滤器的选择 34 7.2 油管的选择 35 7.3 油箱容积的确定 35 第8章 验算液压系统性能 36 8.1 压力损失的验算及泵压力的调整 36 8.2 液压系统的发热和温升验算 38 总结 40 参考文献 42 致谢 43