Probe into Slowing up the Auto-falling of Hydraulic Headstock Gear's Gate

This paper introduces the testing conditions of slowing up the a ut o- falling of hydraulic headstock gear's gate equipped in the floodway of Zhang ze Reservoir, analyzes the reasons of the auto- falling of the gate, describes that slowing up the auto- falling of hydraulic headstock gear's gate by adding the ball valve is simple in operation, economical and practicable.