The invention discloses an air-assisted hydraulic air
booster pump for a magnetically levitated
train. An air cylinder body
assembly and a
hydraulic cylinder body are fastened and connected through a connecting cover, wherein a
respirator assembly is arranged on the connecting cover, a pneumatic
piston and a hydraulic
piston assembly are connected through a push rod passing through an inner hole of the connecting cover, the push rod is connected with the hydraulic
piston assembly through a push rod seat, a hydraulic piston sealing seat is arranged in the hydraulic piston assembly, and one side, facing the push rod seat, on the hydraulic piston sealing seat is provided with sealing rubber. The technical scheme is adopted, the direction of a rubber sealing surface is changed, the front
side impact of
high pressure oil on the sealing rubber is avoided, a guide ring is added to the pneumatic piston, and single-edge abrasion of a pneumatic piston
rubber ring can be avoided, a support ring is added, the falling and abrasion of a Y-shaped ring can be avoided, and through the improvement on a
respirator, the cleanness of an air cylinder assembly is ensured, so that the reliability of a product is improved, and the service life of the product is prolonged.