Hydrostatic supporting device including bearing shoe
AssigneeEscher Wyss Limited
InventorAlfred Christ
Life of this patent
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Abstract
A hydrostatic supporting device with a bearing shoe having a hydrostatic bearing pocket directed towards the sliding surface of the supported part, and with a hydraulic servomechanism between the bearing shoe and the foundation, characterized in that at the front side of the bearing shoe, looking in the direction of movement of the sliding surface, there is arranged at or in the ledge of the bearing pocket a channel which is open towards the sliding surface and is supplied with an additional pressure medium.
Claims5
In hydrostatic supporting apparatus for supporting a mobile part which moves relatively to a foundation and which comprises a bearing shoe mounted in the foundation and having a supporting surface which faces a sliding surface of the mobile part and defines therewith a bearing gap, a hydraulic servomotor arranged to urge the shoe toward the mobile part, a bearing pocket formed in the supporting surface of the shoe and which is confined by a ledge, and means for delivering pressure medium to the servomotor and the bearing pocket, and wherein the shoe has front and rear ledge portions at its opposite sides in the direction of movement of the mobile part, the improvement which comprises means defining a channel at the front ledge portion which opens towards the sliding surface;
- and means for delivering pressure medium to the channel, the channel serving to direct pressure medium into the region of the bearing gap located between the sliding surface and the front ledge portion.
Dependencies are inferred from the claim text.