Static Characteristics Simulation Analysis of a Plate Type Flow Control Type Counterbalance Valve

The paper elaborates the structural principle and operation mechanism of a plate flow control type (Duan and Chang, Hydraul Pneumatic Seals 5 (2021) [1]) counterbalance valve, and builds a simulation model based on its structure using AMESim hydraulic component design library (HCD library). Through simulation analysis, the effect of load pressure on the opening of the counterbalance valve, the effect of compensation damping hole diameter on the flow of the counterbalance valve, the relationship between pilot spool and main spool displacement, and the effect of different load pressures on the displacement of the main spool and pilot spool are explored.