液压调速软制动器非制动工况低发热特性的研究  

Research of Low Heat Characteristics of Hydraulic Speed Soft Brake in Non-Braking Condition

作　　者：俞晶[1,2,3] 李军霞[1,2,3] 

机构地区：[1]太原理工大学机械工程学院,太原030024 [2]山西省矿山流体控制工程技术研究中心,太原030024 [3]山西省矿山流体控制工程实验室,太原030024

出　　处：《煤矿机械》2014年第1期46-48,共3页Coal Mine Machinery

基　　金：国家自然科学青年基金资助项目(51105265);新世纪优秀人才支持计划资助项目(NCET-12-1038);山西省自然科学青年基金资助项目(2011021019-1)

摘　　要：以对非制动工况发热特性的进一步优化为前提,对原液压调速软制动器液压回路进行改进。基于Fluent软件,对改进前后的液压调速软制动器液压回路在非制动工况下的低发热特性进行研究比较,结合发热量的理论计算,证实了在非制动工况下液压调速软制动器新增的插装式电磁换向阀所在回路为近似零阻尼回路,该回路具有降低系统运行发热的优点。As a precondition to further optimize the heating characteristics of the non-braking condition,the paper improved hydraulic circuit of the original hydraulic speed soft brake.Based on FLUENT software,the paper made a depth study comparison of low heat characteristics of the improved and unimproved hydraulic circuits of hydraulic speed soft brake in the non-braking condition.Combi ned theoretical calculations of heat,the study confirmed that the loop where the solenoid operated directional control logic valve lived of the improved hydraulic speed soft brake in the non-braking condition is approximate zero damping loop and the loop has the advantage of reducing heat of the system.

关 键 词：Fluent仿真 液压调速软制动器 低发热特性 零阻尼回路 

分 类 号：TH137.7[机械工程—机械制造及自动化]