Hydraulic plunger pump structure

The pump housing is equipped with a cylinder 6 and a distribution tray 5, and the inner hole L is coupled to the drive shaft 1 with a spline groove and rotate by the drive shaft. Each of the seven piston holes L in the cylinder is provided with a plunger 7, the spherical head of the plunger is mounted in the spherical dimple of the shoe 3, and the riveting, so that the boots and plungers will not detach But it can be relatively rotated. The end of the leap is on the swash plate 2.

A small through hole L in the spherical head and the boots of the plunger is diamond 1 mm, the pressure oil of the working oil cavity can reach the plunger head and the boots and the boots and the swash plate. A good lubrication and static pressure bearing between the relative sliding surfaces are served to reduce wear. "

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