Hub unit

Patent metadata

Field	Value
Publication number	US-9849893-B2
Application number	US-201314779669-A
Country	US
Kind code	B2
Filing date	Mar 27, 2013
Priority date	Mar 27, 2013
Publication date	Dec 26, 2017
Grant date	Dec 26, 2017

Abstract

A hub unit including an end cap for preloading and retaining a bearing unit on an axle. The end cap is provided with a sensor unit for detecting at least one of vibrations and temperature of the bearing unit.

First claim

The invention claimed is:

1. A hub unit including:
an end cap for preloading and retaining a bearing unit on an axle,
wherein the end cap is provided with a sensor unit for detecting at least one of vibrations and temperature of the bearing unit, the sensor unit having an arched shape formed in a radial direction of the end cap, the sensor unit being located proximate an annular edge of the end cap.

2. The hub unit according to claim 1 , the sensor unit further comprising a wireless transmitter for sending the data acquired by the sensor unit.

3. The hub unit according to claim 2 , further comprising a cover plate having a through hole,
wherein at least an antenna portion of the transmitter unit protrudes through the through hole over the cover plate.

4. The hub unit according to claim 1 , the end cap further comprising a pocket accommodating the sensor unit,
wherein the pocket is covered by at least one cover plate.

5. The hub unit according to claim 4 , wherein the pocket is formed as an annular recess arranged concentrically with respect a rotation axis of the bearing unit.

6. The hub unit according to claim 1 , the sensor unit further comprising an overall arc-shaped sealed housing and with a circuit board arranged within the housing.

7. The hub unit according to claim 1 , the sensor unit further comprising at least one acoustic emission sensor.

8. The hub unit according to claim 1 , the sensor unit further comprising at least one gyro sensor.

9. A controller suitable for reading out data acquired by a sensor unit of a hub unit,
the hub unit comprising:
an end cap for preloading and retaining a bearing unit on an axle,
wherein the end cap is provided with a sensor unit for detecting at least one of vibrations and temperature of the bearing unit, the sensor unit having an arched shape formed in a radial direction of the end cap, the sensor unit being located proximate an annular edge of the end cap,

wherein the controller is configured to generate at least one of a status information and warning signals based on the detection results obtained from the sensor unit.

10. A hub unit including:
an end cap for preloading and retaining a bearing unit on an axle; and
a circuit board including multiple circuit board segments, the multiple circuit board segments being pivotably connected to one another by a flexible element,
wherein the end cap is provided with a sensor unit for detecting at least one of vibrations and temperature of the bearing unit.

11. The hub unit according to claim 10 , a wiring side of at least one of the multiple parts of the circuit board is oriented in a direction essentially opposite to a direction in which at least one neighboring part of the circuit board is oriented.

12. The hub unit according to claim 10 , the sensor unit further comprising a wireless transmitter for sending the data acquired by the sensor unit.

13. The hub unit according to claim 12 , further comprising a cover plate having a through hole,
wherein at least an antenna portion of the transmitter unit protrudes through the through hole over the cover plate.

14. The hub unit according to claim 10 , the end cap further comprising a pocket accommodating the sensor unit,
wherein the pocket is covered by at least one cover plate.

15. The hub unit according to claim 14 , wherein the pocket is formed as an annular recess arranged concentrically with respect a rotation axis of the bearing unit.

16. The hub unit according to claim 10 , the sensor unit further comprising an overall arc-shaped sealed housing and with the circuit board arranged within the housing.

17. The hub unit according to claim 10 , the sensor unit further comprising at least one acoustic emission sensor.

18. The hub unit according to claim 10 , the sensor unit further comprising at least one gyro sensor.

Assignees

• Skf Ab

Inventors

• Van Der Ham Andreas Clemens
• Torrie Mairi Joan
• Campbell Andrew
• Mcgoogan Gerard

Classifications

• F16C19/525

  related to temperature and heat, e.g. insulation · CPC title

• F16C35/063

  Fixing them on the shaft (with interposition of an element F16C35/07) · CPC title

• F16C19/527

  related to vibration and noise · CPC title

• F16C19/386

  in O-arrangement · CPC title

• B61F15/20 Primary

  Details · CPC title