Velocity and Load Characteristics Analysis of Pump-Control-Motor Hydraulic Drive System

Abstract:

Pump-control-motor hydraulic drive system is a common used volume speed-modulating loop in hydraulic control system. Aiming at the working conditions of the cutter head of the tunnel excavator used in the large underground excavation, a pump-control-motor hydraulic drive system was applied that composed of three variable displacement hydraulic pumps and eight hydraulic motors, which can control the rotate speed of the cutter head in real time. The simulation model of the pump-control-motor was established using the AMESim software. The relationships among the rotate speed, torque of the cutter head and the system pressure, system flow were investigated in detail under several typical working conditions in tunneling. The relevant results can provide theory references for design of pump-control-motor hydraulic control system in other occasions.

• Periodical: Advanced Materials Research (Volumes 139-141)
• Pages: 947-951
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.139-141.947
• Online since: October 2010
• Authors: Ming Long, Ai Min Hu, Zhi Gang Gao, Xian Jian He
• Keywords: AMESim Simulation, Load Characteristic, Pump-Control-Motor Hydraulic Drive System, Velocity

References

[1] Tianhao Peng: Research of variable frequency pump-control-motor speed governing and compensation characteristics (Master Thesis, Zhejiang University 2003) (In Chinese).

[2] Shiping Liu, Qingchun Mao: Hydraulic Pneumatics & Seals Vol. 2 (2007), p.12 (In Chinese).

[3] Tong Xing: Research on hydraulic drive and control system of the cutter head in shield tunneling machine (Master Thesis, Zhejiang University 2008) (In Chinese).

[4] Yonglin Fu, Xiaoye Qi: Modelling and simulation of AMESim system from fundenmental to proficiency, published by Beihang university presss, Beijing, CN (2006) (In Chinese).