Study of Dynamic Characteristics for Hydraulic System on 300MN Die-forging Press

Chen, Guoqiang; Tan, Jianping

doi:10.1088/1757-899x/212/1/012010

Cited by 1 publication

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The correction control system adopts the diagonal adjustment method, i.e., the four balance cylinders and four return cylinders are arranged opposite to each other on the four corners of the movable crossbeam [11,12] . The detection system sends the detected deflection difference of the movable crossbeam to the deflection control unit, and the deflection control valve group replenishes the hydraulic oil into the capacity cavity of the corresponding cylinder body according to the set control strategy, aiming to control the pressures of the balance cylinders and return cylinders to produce the appropriate reverse balancing torque, correcting the deflection of the movable crossbeam.…”

Section: Modelling Of the Control Systemmentioning

confidence: 99%

Research on deflection correction performance of movable crossbeam during pressurization of ultra-large hydraulic press

Li,

Wang,

Hao

et al. 2024

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

In this paper, the deflection of the movable crossbeam during the pressurization process of the ultra-large hydraulic press is studied. The electromechanical and hydraulic systems of the ultra-large hydraulic press are analyzed, and a joint AMESim-ADAMS simulation model of the mechanical system, the oil system, and the correction control system are established. The simulation analyzes the deflection control of the working cylinder in the 1600 MN pressurized state, the movable crossbeam in the positive load without deflection correction, positive load with deflection correction, eccentric load with 300 mm of deflection in X-positive direction, and eccentric load with 300 mm of deflection in XZ-positive direction. The results show that the correction control system needs to be turned on synchronously at the beginning of the pressurization; under the pressure of 1600 MN and the maximum eccentricity of 300 mm, the velocity error of the movable crossbeam can be controlled within 7 %, and the parallel control precision can reach 0.14 mm/m.

show abstract

Section: Modelling Of the Control Systemmentioning

confidence: 99%