US 8,786,152 B2 · Safety bearing for retaining a rotor shaft of a machine

Abstract

The invention relates to a safety bearing for retaining a rotor shaft (4) of a machine (1), wherein the safety bearing (2) comprises a first carrier body (7) rotating about a virtual geometric center line (M) and roller bodies (5), wherein each roller body comprises a region (19) that is located between the center line (M) and the first carrier body (7), wherein the roller bodies (5) are each connected in a rotatable manner to the first carrier body (7) via a shaft (6). The invention creates a safety bearing (2) with which the likelihood of an occurrence of a backward-whirl is considerably reduced as compared to the safety bearings known from the prior art.

Claims11

Dependent claims

A safety bearing for retaining a rotor shaft of a machine, said safety bearing comprising:

a first carrier body rotatable about a geometrical central axis;
a rolling body mounted on a shaft and having a region arranged between the first carrier body and the geometrical central axis;
roller bearings respectively arranged on opposite ends of the shaft for rotatably connecting the rolling body to the first carrier body;
a second carrier body arranged in surrounding relationship to the first carrier body;
and
an elastic element arranged between the first carrier body and the second carrier body, said elastic element including a first layer of rubber and two second layers of metal, with the first layer arranged between the two second layers.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

13/382,742Filed 28 Jun 2010

Priority

DE 10 2009 031 8876 Jul 2009

Published

US 2012/0181887 A119 Jul 2012

Granted

22 Jul 2014

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

F16C 32/0442
Active magnetic bearings: with devices affected by abnormal, undesired or non-standard conditions such as shock-load, power outage, start-up or…
F16C 19/507
Other types of ball or roller bearings: with rolling elements journaled in one of the moving parts, e.g. stationary rollers to support a rotating part
F16C 39/02
Relieving load on bearings: using mechanical means
F16C 27/066
By means of parts of rubber or like materials: ball or roller bearings

Safety bearing for retaining a rotor shaft of a machine

Life of this patent

Safety bearing for retaining a rotor shaft of a machine

Life of this patent

Abstract

Claims11