Monolithic rotating tool
OwnerFarid Al-Bender, Christophe Gregoirinventors
Life of this patent
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Abstract
A solution is presented for high speed rotating devices, in particular cutting tools, whereby the said rotating device (1) is made monolithic with its shaft and the bearing system, needed to support it during rotation, uses the surfaces of the rotating device (1) as bearing surfaces. In the preferred embodiment, the fluid film bearing system includes two journal bearings (2,4) on both sides of the cutting tool and two thrust bearings (2,3), which use the faces of the cutting tool (1) as bearing surfaces
Claims33
1-31. (canceled)
An apparatus comprising a rotating tool that is monolithic with a shaft and a fluid film bearing system wherein the fluid film bearing system comprises two thrust bearings at both coaxial surfaces of the blade and further comprising two journal bearings positioned at the shaft.
A high precision and high speed rotation device, comprising 1) a fluid (gas or liquid) bearing system which is a combined journal bearing and thrust bearing and 2) a blade which is monolithic with a shaft, wherein the thrust bearings use the sides of the blade as a thrust bearing surface and the journal bearings use the shaft as journal bearing surface and wherein the blade is positioned between the two thrust bearings.
A fluid bearing system for stabilising high speed rotation, characterised in that said bearing system is a combined journal and thrust bearing system, that the thrust bearing uses the sides of the rotating tool as a bearing surface, that the rotating tool is positioned between to two bearings and that the rotating tool is monolithic with the shaft.
Dependencies are inferred from the claim text.