Ed 80/6 Electro-hydraulic Thrusters

The electrohydraulic pusher is composed of two parts, the drive motor and the body (centrifugal pump), and the body part is composed of a cover, a cylinder, a piston, an impeller and a rotating shaft.

When energized, the motor drives the transmission shaft and the impeller on the rotating shaft to rotate, generating pressure in the piston. Under the influence of this pressure, the oil is sucked from the upper part of the piston to the lower part of the piston, forcing the piston and the push rod and beam fixed on it to rise rapidly.  Mechanical movement is produced by mechanically compressing a load spring (with a load spring in a pusher or brake) by means of a lever.

When the power is cut off, the impeller stops rotating, and the piston quickly descends under the force of the load spring and its own gravity, forcing the oil to flow into the upper part of the piston again, and at this time it is still restored to its original position through the lever mechanism.
Electrohydraulic pushers are often used in conjunction with brake racks and are widely used for braking of various transmission devices.

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