电控负载敏感山地收割机工作回路性能仿真分析  

Simulation Analysis of the Working Circuit Performance of Electronic Load Sensing Mountain Harvesters

作　　者：周山旭 杨蕾 应江虹 ZHOU Shanxu;YANG Lei;YING Jianghong(Department of Mechanical Engineering,Guizhou Communications Polytechnic University,Guiyang Guizhou 551400,China;School of Mechanical Engineering,Guizhou University,Guiyang Guizhou 550025,China)

机构地区：[1]贵州交通职业大学机械电子工程系,贵州贵阳551400 [2]贵州大学机械工程学院,贵州贵阳550025

出　　处：《机床与液压》2025年第2期207-212,共6页Machine Tool & Hydraulics

基　　金：贵州省科技厅科技创新人才团队建设项目(黔科合平台人才-CXTD[2021]008);贵州省教育厅自然科学研究项目(黔教技[2023]100号)。

摘　　要：目前机液式负载敏感液压系统存在响应速度慢、效率低等问题。针对山地收割机设计一种电控负载敏感系统,该系统用液压技术与电子信息技术取代传统液压负载敏感系统,以提高系统的响应速度、控制精度与稳定性。为验证所设计系统的可行性,采用AMESim对其进行仿真试验。结果表明:所设计系统执行机构需要的流量仅取决于对应多路阀的开口大小,而与负载无关;同时,当系统出现流量饱和工况时,液压泵的排量会根据各个执行机构对应多路阀的开口等比例分配流量,使山地收割机可以实现单泵多执行机构的复合运动。所设计的电控负载敏感系统能够替代传统的负载敏感系统,为电控负载敏感提供了理论依据。In response to the problems of slow response speed and low efficiency in current machine hydraulic load sensing hydraulic system,an electronic control load sensing system was designed for mountain harvesters.Hydraulic technology and electronic information technology were combined to replace traditional hydraulic load sening systems,to improve the response speed,control accuracy and stability of system.To verify the feasibility of the designed system,AMESim was used for simulation analysis.The results show that the required flow rate for the actuator of the designed system only depends on the opening size of the corresponding multi-way valve and it is independent of the load.At the same time,when the system experiences flow saturation conditions,the displacement of the hydraulic pump will be proportionally distributed according to the opening of the corresponding multi-way valve of each actuator,allowing the mountain harvester to achieve composite motion of a single pump and multiple actuators.The designed electronic load sensing system can replace traditional load sensing systems,providing a theoretical basis for electronic load sensing.

关 键 词：电控负载敏感系统 山地收割机 性能分析 

分 类 号：TH137[机械工程—机械制造及自动化]