Study on pressure buffer structure of continuous rotary electro-hydraulic servo motor  

作　　者：WANG Xiaojing PENG Ziqin ZHANG Yuxuan 王晓晶

机构地区：[1]Beijing Key Laboratory of Performance Guarantee on Urban Rail Transit Vehicle,Beijing University of Civil Engineering and Architecture,Beijing 102616,P.R.China [2]Beijing Engineering Research Center of Monitoring for Construction Safety,Beijing University of Civil Engineering and Architecture,Beijing 102616,P.R.China

出　　处：《High Technology Letters》2025年第1期95-104,共10页高技术通讯(英文版)

基　　金：Supported by the National Natural Science Foundation of China(No.52375037);the Masters Innovation Project of Beijing University of Civil Engineering and Architecture(No.PG2024142);the Outstanding Youth of Pyramid Talent Training Project of Beijing University of Civil Engineering and Architecture(No.GDRC20220801);the Breeding Program Funding of Beijing University of Civil Engineering and Architecture(No.X24026).

摘　　要：The aim of the study is to investigate the impact of the buffer groove structure on the pressure of continuous rotation electro-hydraulic servo motor.The mathematical model of the motor valve plate with triangular groove and U-groove structure is established firstly,and the structure size of the two buffer grooves with better pressure drop effect is obtained by Matlab.Secondly,an established pressure gradient model is developed for the sealed canisters for electric motors using a combined groove structure.The bird swarm optimization algorithm is used to obtain the optimal dimensions for the combined depth and angle of the pressure groove.The flow field in the motor seal chamber is simulated and calculated by Fluent.This study compared the pressure field distributions in the motors sealing chamber using triangular and combined groove structures.It investigated the combined grooves effect on the pressure impact during the commutation of a continuously rotating electro-hydraulic servo motor.It is found that the combined groove structure has a positive impact on reducing the pressure impact.The results indicate that the combined groove structure significantly enhances the efficiency of mitigating pressure shocks when the motor switches between high-and low-pressure chambers.

关 键 词：continuous rotating electro-hydraulic servo motor pressure impact combined groove optimal design 

分 类 号：O35[理学—流体力学]