【作者】 陈永峰；

【导师】 李云济； 焦生杰；

【作者基本信息】 长安大学 ， 机械电子工程， 2007， 硕士

【摘要】 本文结合某全液压平地机,查阅了大量的文献和资料,分析与研究了全液压平地机行驶液压驱动系统与转向系统的组成和工作原理,阐述了液压驱动作业与转向系统的关系,提出了转向与作业过程中存在的问题。以平地机运动学和动力学为基础,分析了全液压平地机在转向过程中的受力情况,提出了稳定转向的条件,指出了转向过程中内外侧驱动力与滚动阻力之间的问题。基于AMESim软件进行了全液压平地机转向系统的建模与仿真,计算了机器本身以及减速平衡箱折算到液压马达驱动轴上的转动惯量,仿真了在各档位下液压马达转速、流量、压力之间的关系。进行了样机转向试验,对试验数据进行了处理与分析,并提出了新的控制方案。更多还原

【Abstract】 The author researches the relationship between driving system and steering system of full hydraulic grader, analyzes the principle and the composing of them, puts forward the problem in process of driving and steering, combined with full hydraulic grader and lots of materials.Based on kinematics and dynamics of grader, the stress states are analyzed while the full hydraulic grader steers, the condition of full hydraulic grader steadily steering is put forward, the problem of the driving force and roll resistance between inboard and outboard is clarified while the full hydraulic grader steering.Based on AMESim, the author makes model and simulates for driving system of full hydraulic grader. While modeling the flushing valve is simplified, rotary inertia which is converted from the machine itself and deceleration balance box to driving shaft of hydraulic motor is calculated. And also the relationship among rotational speed, flow and pressure of hydraulic motor under different grades is simulatedSteering test of full hydraulic grader is done, the test data are recorded and analyzed, and also the new control scheme is put forward.更多还原