C80履带式全液压自卸车传动与控制系统研究

发布时间：2018-04-11 06:43

本文选题：履带式自卸车 + 全液压传动　；参考：《长安大学》2012年硕士论文

【摘要】：履带式自卸车是一种采用履带底盘，利用自身发动机动力驱动液压升举机构，，将车厢倾斜一定角度卸下物料，并依靠车厢自重或液压缸收缩使车厢复位的专用车辆。近年来，随着技术与元件的成熟和不断发展，液压传动在中小型工程机械中得到了广泛的应用。因此在履带式自卸车市场需求量增大，对产品综合性能要求也越来越高的情形下，研究和开发技术先进的全液压电比例控制履带式自卸车有其重要的现实意义和实用价值。本文对C80履带式全液压自卸车的传动系统与电比例控制技术进行了研究。通过对中小型履带式自卸车使用工况与功能分析，确定了基于双泵双马达的行驶系统液压传动方案。对传动系统进行了参数匹配研究；给出了发动机、电比例泵和双排量马达等关键元件的匹配参数与选型；对行驶速度、驱动力、驱动扭矩等关键参数进行了设计计算；对C80履带式全液压自卸车的控制系统功能的分析，对主控制器、显示器等元件选型，并分析了控制系统的输入输出信号进行了引脚分配；基于AMESim软件，建立了履带式自卸车电液行驶系统仿真模型，进行了行驶性能仿真。理论分析和仿真结果表明，论文方案合理可行。
[Abstract]:Caterpillar dump truck is a kind of special vehicle which adopts track chassis, uses its own engine power to drive hydraulic lift mechanism, tilts the car at a certain angle to unload the material, and relies on the weight of the carriage or the contraction of the hydraulic cylinder to make the car reset.In recent years, with the maturity and development of technology and components, hydraulic transmission has been widely used in medium and small engineering machinery.Therefore, under the situation that the market demand of tracked dump truck is increasing and the requirement of product comprehensive performance is becoming higher and higher, it is of great practical significance and practical value to research and develop the fully hydraulic electric proportional control track dump truck with advanced technology.In this paper, the transmission system and electric proportional control technology of C80 crawler full hydraulic dump truck are studied.The hydraulic transmission scheme of driving system based on double pump and double motor is determined by analyzing the working condition and function of middle and small crawler dump truck.The matching parameters and selection of key components such as engine, electric proportional pump and double displacement motor are given, and the key parameters such as driving speed, driving force and driving torque are designed and calculated.The function of the control system of C80 crawler fully hydraulic dump truck is analyzed, the main controller, display and other components are selected, and the input and output signals of the control system are analyzed, which is based on AMESim software.The simulation model of electro-hydraulic driving system of tracked dump truck is established, and the driving performance is simulated.Theoretical analysis and simulation results show that the scheme is reasonable and feasible.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH242

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