全液压轮式工程机械行驶回路分析  

Analysis of Driving Loop of Fully Hydraulic Wheeled Construction Machinery

作　　者：徐成东[1] Xu Chengdong

机构地区：[1]四川建筑职业技术学院交通与市政工程系,四川德阳618000

出　　处：《装备机械》2022年第1期7-11,共5页The Magazine on Equipment Machinery

摘　　要：全液压轮式工程机械采用液压传动,行驶回路为由液压马达构成的回路。从液压传动基本理论出发,分析前、后马达串联时的输出运动特性。结合运动学和力学相关知识,对采用前、后马达串联回路的工程机械在特定条件下的运动过程进行研究,得出该类型回路的优缺点。运用流体力学理论,对前、后马达并联回路进行分析,得出数学关系式。针对三种不同的数学关系,运用运动学和液压传动理论分析对应的运动状况。从轴向柱塞泵的结构和工作原理入手,分析其排量调节过程,验证轴向柱塞泵作为双向变量泵使用的合理性,同时分析了全液压轮式工程机械行驶回路的油液循环方式和调速方式。最后给出了典型全液压轮式工程机械行驶回路。The fully hydraulic wheeled construction machinery adopts hydraulic transmission,and the driving loop is a loop formed by hydraulic motor.Starting from the basic theory of hydraulic transmission,the output motion characteristics were analyzed as the front and rear motors were set in series.Combined with the relevant knowledge of kinematics and mechanics,the motion process of the construction machinery under specific condition was studied when the front and rear motors were set in series loop,and the advantages and disadvantages of this type of loop were obtained.Using the theory of fluid mechanics,the parallel loop of the front and rear motors were analyzed,and the mathematical relationship was obtained.Aiming at three different mathematical relationships,the corresponding motion conditions were analyzed by using kinematics and hydraulic transmission theory.Starting from the structure and working principle of the axial piston pump,the displacement adjustment process was analyzed,the rationality of the axial piston pump as a bidirectional variable pump was verified,and the modes of oil circulation and speed regulation of the driving loop of the fully hydraulic wheeled construction machinery were analyzed.Finally,a typical driving loop of full hydraulic wheeled construction machinery was given.

关 键 词：工程机械 行驶回路 分析 

分 类 号：TH137[机械工程—机械制造及自动化]