Study on the determination of variable characteristics of axial piston pumps

Because the variable characteristics of axial piston variable pump can be applied to different working conditions, this paper simulates the actual working conditions of axial piston pump in excavator, theoretically analyzes its variable working principle, and focuses on how to adjust the difference between pump outlet pressure and load sensitive port pressure stably. Finally, an axial piston pump variable characteristic test system is built based on LabVIEW software, and a field verification test is conducted, and an effective and reasonable test scheme is selected through analysis and comparison, which provides a certain engineering reference value for the variable characteristic test of axial piston pump.