Abstract
The fit clearance between the spool and the sleeve has important influences on the performance of the proportional cartridge valve. Too small clearance will cause jam and too much clearance will in...
Highlights
A proportional cartridge valve is mainly used in the electrohydraulic control system of the large mechanical equipment such as forging presses, die-casting machines, and hydraulic presses, which is the key component to achieve rapid and steady performances of hydraulic systems.[1,2,3] The determination of the fit clearance between spool and sleeve is one of the major sticking points during the design and manufacture of proportional cartridge valve
The machining accuracy and the structure deformation caused by pressure are the most important factors which the fit clearance is decided by
The creeping phenomenon appearing in the experiment results of spools 1# and 2# can be interpreted as the result of the sleeve deformation exceeding the fit clearance
Summary
A proportional cartridge valve is mainly used in the electrohydraulic control system of the large mechanical equipment such as forging presses, die-casting machines, and hydraulic presses, which is the key component to achieve rapid and steady performances of hydraulic systems.[1,2,3] The determination of the fit clearance between spool and sleeve is one of the major sticking points during the design and manufacture of proportional cartridge valve. Keywords Proportional cartridge valve, fit clearance, fluid–structure interaction, computational fluid dynamics, sleeve deformation The three-dimensional (3D) finite element simulation is used to evaluate the structure deformation of a proportional cartridge valve with an 80-mm port.
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