Bearing arrangement having a sensor rolling element

Patent metadata

Field	Value
Publication number	US-9816896-B2
Application number	US-201615250391-A
Country	US
Kind code	B2
Filing date	Aug 29, 2016
Priority date	Aug 28, 2015
Publication date	Nov 14, 2017
Grant date	Nov 14, 2017

Abstract

A bearing arrangement having an inner race and an outer race, between which rolling elements are disposed, the rolling elements being accommodated in a bearing cage. At least one rolling element is designed as a sensor rolling element, and the bearing cage is designed as a pin cage having multiple pin elements that at least partially accommodate the rolling elements and the at least one sensor rolling element, and a sensor rolling element for a bearing arrangement of this kind are disclosed.

First claim

The invention claimed is:

1. A bearing arrangement comprising:
an inner race;
an outer race;
rolling elements disposed between the inner race and the outer race, the rolling elements being accommodated in a bearing cage,
wherein at least one rolling element is designed as a sensor rolling element, the sensor roller element comprising a sensor module disposed within an interior of a tubular sleeve; and
a sensor data providing device disposed within the interior of the tubular sleeve, the sensor data providing device is provided in signal communication with the sensor module,
wherein the bearing cage is configured as a pin cage having multiple pin elements, wherein the pin elements engage with the sleeve interior at each respective end of (a) each of the the rolling elements and (b) the hollowed portion at each respective end of the sleeve of the at least one sensor rolling element.

2. The bearing arrangement according to claim 1 , wherein the bearing cage further comprises at least one first bearing cage segment and one second bearing cage segment.

3. The bearing arrangement according to claim 1 , wherein the pin element is configured as two mutually spaced holding elements in an area in which the sensor rolling element is accommodated, wherein the holding elements engage into correspondingly designed recesses in the sensor rolling element.

4. The bearing arrangement according to claim 1 , wherein the pin element is designed as a continuous pin for a sensor rolling element.

5. The bearing arrangement according to claim 1 , wherein the sensor rolling element is configured as a sleeve having a sleeve interior, in which at least one sensor module for detecting at least one bearing variable is accommodated.

6. The bearing arrangement according to claim 5 , wherein the at least one sensor module is accommodated in the sleeve, centered with respect to an axis of rotation (D) of the sensor rolling element.

7. The bearing arrangement according to claim 5 , wherein the at least one sensor module is accommodated in the sleeve interior circumferentially and radially spaced from an axis of rotation (D) of the sensor rolling element.

8. The bearing arrangement according to claim 1 , wherein the bearing arrangement further comprises at least one current-providing element and/or at least one data transmission element and/or at least one amplifier, and wherein the at least one current-providing element and/or the at least one data transmission element are/is disposed on the sensor module.

9. The bearing arrangement according to claim 8 , wherein the current-providing element is configured as an inductively operating generator and/or as a battery.

10. The bearing arrangement according to claim 9 , wherein the inductively operated generator further comprises at least one rotor, which has at least one coil, and a stator, which has at least one magnet, and wherein the stator is disposed on the bearing cage and the rotor is disposed on the sensor rolling element.

11. A bearing arrangement comprising:
an inner race;
an outer race; and
rolling elements disposed between the inner race and the outer race, the rolling elements being accommodated in a bearing cage;
wherein at least one rolling element is designed as a sensor rolling element,
wherein the bearing cage is configured as a pin cage having multiple pin elements that at least partially accommodate the rolling elements and the at least one sensor rolling element,
wherein the pin element is designed as a continuous pin for a sensor rolling element.

Assignees

• Meaney Paul
• Den Haak Nicolaas Simon Willem
• Hofmann Matthias
• Liang Baozhu
• Liesegang Hans-Juergen
• Skf Ab

Inventors

• Meaney Paul
• Den Haak Nicolaas Simon Willem
• Hofmann Matthias
• Liang Baozhu
• Liesegang Hans-Juergen

Classifications

• F16C2233/00

  Monitoring condition, e.g. temperature, load, vibration · CPC title

• F16C33/366

  Tapered rollers, i.e. rollers generally shaped as truncated cones · CPC title

• F16C19/52 Primary

  with devices affected by abnormal or undesired conditions · CPC title

• G01M13/04 Primary

  Bearings · CPC title

• G01M13/045

  Acoustic or vibration analysis · CPC title