Hydraulic actuation system and vibration reduction device

Abstract

The present application relates to the field of hydraulic control technology, and provides a hydraulic actuation system and a vibration reduction device. The hydraulic actuation system includes a hydraulic cylinder, a driving oil circuit, a driving motor and a hydraulic pump: the hydraulic cylinder includes a cylinder body with a cavity, a piston and a piston rod, the piston and the piston rod together divide the cavity into a rodless cavity and a rod cavity, the cylinder body is provided with a first hydraulic interface at the rodless cavity, and the cylinder body is provided with a second hydraulic interface at the rod cavity; the driving oil circuit is connected between the first hydraulic interface and the second hydraulic interface; the hydraulic pump is arranged in the hydraulic cylinder and is connected to the driving motor by transmission; the hydraulic pump has a first oil port and a second oil port, the first oil port is connected to the rodless cavity and a compression valve system is provided between the two, and the second oil port is connected to the rod cavity and a recovery valve system is provided between the two. The hydraulic actuation system provided by the present application not only effectively reduces the occupied space on the basis of maintaining normal hydraulic control, but also can adjust the running speed of the piston, improve reliability and impact resistance.

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