快速底盘圆形坑槽铣刨车液压及电控系统研究

发布时间：2018-05-25 02:39

本文选题：铣刨车 + 液压系统　；参考：《长安大学》2014年硕士论文

【摘要】：快速底盘圆形坑槽铣刨车是一种新型沥青路面养护机械，其结构简单、操作方便、作业效率高，与普通铣刨设备相比，其突出的特点是能够铣削出形状规则、边缘垂直的圆形坑槽。该设备的主要工作装置由液压驱动，因此，液压系统是该机的最重要构成部分之一。同时，电控系统是保证整机动力和液压系统协调工作的必要条件，也是保证作业性能、提高作业效率的必要条件。本文的主要工作是贯彻高效、节能的设计理念，设计、研发满足功能和性能要求的液压系统及电控系统，实现主要工作装置的液压驱动和电控操作。本文完成的主要工作如下： 1、分析了该铣刨车的整机功能需求和性能要求，以及有关作业装置对液压系统的要求，，明确了设计目标。 2、查阅了大量有关液压技术和电液控制方面的文献和资料，从设计满足各个系统要求的液压支系统入手，经过综合、优化完成了整机液压系统的设计，并对系统中的重要元件，如液压泵、液压马达、液压缸及辅助元件进行了计算选型。 3、针对快速底盘圆形坑槽铣刨车液压系统的铣刨装置控制支系统进行了详尽分析，选定合理且节能的变量泵控制液压缸的独立系统，充分地利用发动机的输出功率，保证了铣刨车的高效作业。 4、鉴于现实条件的限制及泵控缸系统相关参数的重要性，选择了液压铣刨和废料举升系统进行了仿真建模与分析，并探讨了系统的内部、外部参数对其响应速度及相关性能的影响，且通过AMESim进行仿真验证。最后结合实际情况，给出了提高系统响应速度的方法。 5、根据整车动力和液压系统的控制对象及其相应的控制要求，完成了基于PLC的整车电控系统设计，包括硬件系统及软件设计，实现了铣刨车作业循环的自动化控制。 6、完成了电控系统元件选型及模拟实验。通过设计、计算、仿真和修改，所完成的液压系统及电控系统设计可以满足快速底盘圆形坑槽铣刨车的功能实现和自动控制要求，具有实用、高效、节能的特点。
[Abstract]:The rapid chassis round pit milling planer is a new type of asphalt pavement maintenance machine. Its structure is simple, its operation is convenient and the operation efficiency is high. Compared with the ordinary milling machine, its outstanding characteristic is that it can milling out the shape rule and the vertical circular pit with the edge. The main working device of this equipment is driven by hydraulic pressure. Therefore, the hydraulic system is the machine. At the same time, the electronic control system is a necessary condition to ensure the coordination of the power and hydraulic system of the whole machine. It is also a necessary condition to ensure the performance of the operation and improve the efficiency of the operation. The main work of this paper is to carry out the design concept of high efficiency and energy saving, design and develop the hydraulic system and electronic control system that meet the function and performance requirements. The main work of this paper is as follows:
1, the functional requirements and performance requirements of the milling machine are analyzed, and the requirements for the hydraulic system of the operation device are defined, and the design objectives are clearly defined.
2, a lot of literature and data about hydraulic and electro-hydraulic control are consulted. From the design of hydraulic support system that meets the requirements of each system, the design of the hydraulic system is completed through synthesis, and the calculation and selection of important components in the system, such as hydraulic pump, hydraulic motor, hydraulic cylinder and auxiliary components, are carried out.
3, a detailed analysis is made on the control support system of the milling planing device for the hydraulic system of the rapid chassis round pit milling planer. The independent system of the hydraulic cylinder is controlled by a reasonable and energy-saving variable pump. The output power of the engine is fully utilized, and the efficient operation of the milling planer is ensured.
4, in view of the limitation of the actual conditions and the importance of the relevant parameters of the pump control cylinder system, the simulation modeling and analysis of the hydraulic milling planer and the waste lifting system are selected, and the influence of the internal and external parameters on the response speed and the related performance of the system is discussed, and the simulation verification is carried out through AMESim. Finally, the actual situation is given. A method of high system response speed.
5, according to the control objects of the whole vehicle power and hydraulic system and their corresponding control requirements, the design of the electronic control system based on PLC is completed, including the hardware system and software design, and the automatic control of the operation cycle of the milling planer is realized.
6, component selection and simulation experiments of the electronic control system have been completed.
Through the design, calculation, simulation and modification, the design of the hydraulic system and electronic control system can meet the function realization and automatic control requirements of the fast chassis round pit milling planer. It has the characteristics of practical, efficient and energy saving.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U418.3

【参考文献】