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Study on the Inner Leakage of Super-Low Speed Continuous Rotary Electro-Hydraulic Servo Motor(PDF)

《哈尔滨理工大学学报》[ISSN:1007-2683/CN:23-1404/N]

Issue:
2016年06期
Page:
11-16
Research Field:
机械动力工程
Publishing date:

Info

Title:
Study on the Inner Leakage of Super-Low Speed Continuous Rotary Electro-Hydraulic Servo Motor
Author(s):
WANG Xiao-JingLI SongMAN Guo-jiaZHANG Meng-jianXIU Li-wei
(School of Mechanical and Power Engineering, Harbin University of Science anti Technology, Harbin 150080, China)
Keywords:
electro-hydraulic servo motor continuous rotary low speed creeping internal leakage surface roughness
PACS:
TH137.5
DOI:
10.15938/j.jhust.2016.06.003
Abstract:
Aiming at the low speed creeping problem in the continuous rotary electro-hydraulic servo motor,this paper analyzes the factors influencing the motor low speed performances.According to the working principle of the motor,the parallel plate flow theoretical formula is used,considering the impact of surface roughness on the leakage.Mathematical model of the internal leakage of continuous rotary motor is established and the law of the internal leakage influenced by surface roughness,the pressure difference between inlet and outlet and rotational angular velocity is obtained.With the set-up of the principle block diagram of the single-channel electro-hydraulic position servo system and simulation analysis of motor's low-speed tracking performances under different leakage coefficients based on MATLAB,the influence of the internal leakage on motor low speed performances is obtained,which has laid down the foundation to improve the control strategy design of the continuous rotary motor low speed performances.

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Last Update: 2017-02-28