Cup-shaped hydraulic bearing

摘要

The bearing includes of a beaker-type housing part in which a soft rubber support spring is arranged bearing a load supporting plate which is enclosed by a disc-type control spring arranged transversely to the support spring. The combination of the control spring and the load support plate is clamped radially pre-stressed in the upper portion of the beaker-type housing part such that the beaker-type housing part is hermetically closed in a gas-tight and liquid-tight manner. A clapper-type damping piston is suspended in a recess at the lower side of the load support plate and is free to move in an axial direction; The piston head is slidably fitted in a substantially exactly fitting manner into a cylinderical tube attached to the bottom of the beaker-type housing part. The hermetically closed bearing is filled with a damping liquid. When the load supporting plate starts its vibration and pushes the piston into the cylindrical tube, the damping liquid enclosed in the lower part of the damping cylinder is displaced either through a throttle opening at the bottom of the damping cylinder and/or through an annular gap between the piston and the inner surface of the cylindrical tube.