Aerostatic bearing for open-end spinning device
AssigneeRieter Ingolstadt Spinnereimaschinenbau AG
InventorsErich Bock, Manfred Knabel, Edmund Schuller
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Abstract
For an aerostatic bearing (6) of an open-end spinning rotor, in which the bearing material consists of a wearable material, a wear indicator (9) is provided on the bearing plate (601) of the axial bearing (6) so that the state of wear of the axial bearing (6) can be checked by simple optical inspection. The wear indicator (9) can be integrated into the running surface (610) and be made e.g. in the form of a blind bore (91), so that the presence of the bore indicates that the wear lies still within the admissible limits.
Claims13
An open-end spinning device with a spinning rotor having a shaft with a free end wherein an axially acting force is exerted on said spinning rotor towards said free end, said spinning device further comprising an axial aerostatic bearing disposed opposite said shaft free end so that a bearing gap is defined between said aerostatic bearing and said shaft free end, said aerostatic bearing comprising a bearing plate having a running surface facing said shaft free end and a side away from said shaft free end, said bearing plate comprising at least one wear indicator defined on at least one of said running surface or said side away from said shaft free end, said wear indicator comprising a structural component of said running surface or said side away from said shaft free end having a first visual appearance during a first wear condition of said bearing plate, said structural component changing to a second visual appearance at a point of further wear of said bearing plate thereby providing a visual warning of an undesired wear condition of said plate.
Dependencies are inferred from the claim text.