Method for operating a roller bearing assembly, and roller bearing device therefor

Patent metadata

Field	Value
Publication number	US-9556909-B2
Application number	US-201314376650-A
Country	US
Kind code	B2
Filing date	Jan 16, 2013
Priority date	Feb 6, 2012
Publication date	Jan 31, 2017
Grant date	Jan 31, 2017

Abstract

A roller bearing device ( 1 ) and to a method for operation thereof, including a roller bearing ( 2 ) having roller contacts ( 6, 7 ) in contact with a medium and lubricated by the liquid medium ( 10 ). In order to improve the lubrication and load capacity of such a medium-lubricated roller bearing ( 2 ) while simultaneously improving the biologically compatible behavior, a biologically neutral additive material ( 13 ) that thickens the medium is held available in a holding device ( 14 ) and metered to the roller contacts ( 6, 7 ) on demand.

First claim

The invention claimed is:

1. A method for operating a roller bearing device comprising providing a roller bearing with roller contacts that are in contact with a liquid medium and are lubricated by the liquid medium, storing a biologically neutral additive that thickens the liquid medium in a supply device, and dosing the biologically neutral additive as needed to the roller contacts, wherein the liquid medium is water.

2. The method according to claim 1 , wherein the dosing of the biologically neutral additive is controlled by a control parameter detected by a detection device mounted in an area of the roller contacts for detecting a viscosity of the liquid medium.

3. The method according to claim 1 , wherein the dosing of the biologically neutral additive is controlled by a control parameter detected by a detection device mounted in an area of the roller contacts for detecting a fill level of a reservoir connected to the roller contacts.

4. A roller bearing device for performing the method according to claim 1 , comprising the roller bearing having an inner ring, an outer ring, and roller bodies that are distributed over a circumference between the inner ring and the outer ring and roll on the roller contacts of the rings, the supply device with the biologically neutral additive that thickens the liquid medium and a dosing device that doses the biologically neutral additive to the roller contacts as a function of a control parameter detected by a detection device.

5. The roller bearing device according to claim 4 , wherein the dosing device contains a feed pump preloading the biologically neutral additive in the supply device, a dosing valve that is switchable as a function of the control parameter, and at least one dosing opening in an area of the roller contacts.

6. The roller bearing device according to claim 4 wherein the detection device is a viscometer.

7. The roller bearing device according to claim 4 , wherein the detection device is a fill level sensor detecting a fill level of a reservoir that is provided for the biologically neutral additive and is arranged on the roller contacts.

8. The roller bearing device according to claim 4 , wherein the biologically neutral additive is biocompatible, biodegradable, and non-eutrophic.

9. A method for operating a roller bearing device comprising providing a roller bearing with roller contacts that are in contact with a liquid medium and are lubricated by the liquid medium, storing a biologically neutral additive that thickens the liquid medium in a supply device, and dosing the biologically neutral additive as needed to the roller contacts, wherein a free blowing device operated with compressed air is provided on a side of the roller contacts opposite the dosing of the biologically neutral additive.

10. A roller bearing device for performing the method according to claim 1 , comprising the roller bearing having an inner ring, an outer ring, and roller bodies that are distributed over a circumference between the inner ring and the outer ring and roll on the roller contacts of the rings, the supply device with the biologically neutral additive that thickens the liquid medium and a dosing device that doses the biologically neutral additive to the roller contacts as a function of a control parameter detected by a detection device, wherein a free blowing device is provided on a side of the roller bearing opposite the dosing device.

Assignees

• Schaeffler Technologies Gmbh & Co Kg
• Schaeffler Technologies Ag

Inventors

• Holweger Walter
• Wolf Marcus
• Walther Frank

Classifications

• F16C33/6674 Primary

  related to the amount supplied, e.g. gaps to restrict flow of the liquid · CPC title

• F16C33/6637 Primary

  with liquid lubricant · CPC title

• F16C33/6688

  Lubricant compositions or properties, e.g. viscosity · CPC title

• F16C2326/30

  Ships, e.g. propelling shafts and bearings therefor · CPC title

• F16C19/24

  for radial load mainly · CPC title