Capped bearing with vibration sensor

Patent metadata

Field	Value
Publication number	US-9797452-B2
Application number	US-201615091179-A
Country	US
Kind code	B2
Filing date	Apr 5, 2016
Priority date	Apr 10, 2015
Publication date	Oct 24, 2017
Grant date	Oct 24, 2017

Abstract

A bearing includes a first ring, a second ring, at least one row of rolling elements arranged in a rolling chamber disposed between the first ring and the second ring, and a cap attached to the first ring that is configured to close the rolling chamber. At least one vibration sensor is attached on the inside of the cap, and the vibration sensor is mounted in a metal block connected to the cap.

First claim

The invention claimed is:

1. A bearing comprising:
a first ring,
a second ring,
at least one row of rolling elements arranged in a rolling chamber disposed between the first ring and the second ring and a cap attached to the first ring configured to close the rolling chamber, wherein
at least one vibration sensor is attached on the inside of the cap, and
wherein the vibration sensor is mounted in a metal block connected to the cap.

2. The bearing according to claim 1 , wherein the cap is attached to the first ring by a material bonded connection.

3. The bearing according to claim 2 , wherein the cap is attached to the first ring by brazing.

4. The bearing according to claim 1 , wherein the cap includes at least one axial end face, and wherein the vibration sensor is attached to the axial end face.

5. The bearing according to claim 1 , wherein the cap includes at least one radial end face and one axial end face, and wherein the vibration sensor is attached to the radial end face.

6. The bearing according to claim 1 , wherein the cap is configured to damp vibrations within the cap.

7. The bearing according to claim 1 , wherein the sensor is arranged in an encapsulation within the cap.

8. The bearing according to claim 7 , wherein the encapsulation is formed by injection molding.

9. A machine assembly comprising:
the bearing according claim 1 ,
wherein
the bearing is mounted such that the sensor is located in a loaded zone of the bearing.

10. The bearing according to claim 1 ,
wherein the cap is metal, and
wherein the metal block is mounted in a recess in an injection-molded encapsulation, and
the injection-molded encapsulation is attached to the metal cap.

11. The bearing according to claim 10 , wherein the cap includes an axial end face and a radial end face and wherein the encapsulation directly contacts the axial end face and directly contacts the radial end face.

12. The bearing according to claim 11 , wherein the metal block directly contacts the radial end face.

13. The bearing according to claim 11 , wherein the metal block includes an axially facing opening, and wherein the vibration sensor is located in the axially facing opening and wherein the encapsulation at least partially covers the axial facing opening.

14. The bearing according to claim 1 , wherein the cap includes an axial end face and a radial end face and the metal block either a) directly contacts the axial end face and does not directly contact the radial end face or b) directly contacts the radial end face and does not directly contact the axial end face.

15. A bearing comprising:
a first ring,
a second ring,
at least one row of rolling elements arranged in a rolling chamber disposed between the first ring and the second ring and a cap attached to the first ring configured to close the rolling chamber, wherein
at least one vibration sensor is attached on the inside of the cap, and
wherein the cap is a stamped sheet metal part.

16. The bearing according to claim 15 , wherein the vibration sensor is mounted in a metal block connected to the cap.

17. The bearing according to claim 1 , further comprising a locking means for avoiding slippage of the first ring.

18. A cap used in a bearing, the bearing comprising:
a first ring,
a second ring,
at least one row of rolling elements arranged in a rolling chamber disposed between the first ring and the second ring and a cap attached to the first ring configured to close the rolling chamber, wherein
a vibration sensor is attached on the inside of the cap,
wherein the vibration sensor is mounted in a metal block connected to the cap, and
wherein the cap is a stamped sheet metal part.

19. The cap according to claim 18 , wherein the metal block is mounted in a recess in an injection-molded encapsulation attached to the cap.

20. The cap according to claim 18 , wherein the cap includes an axial end face and a radial end face and the metal block either a) directly contacts the axial end face and does not directly contact the radial end face or b) directly contacts the radial end face and does not directly contact the axial end face.

Assignees

• Den Haak Nicolaas Simon Willem
• Welling Koos
• Van Pommeren Jascha
• Skf Ab

Inventors

• Den Haak Nicolaas Simon Willem
• Welling Koos
• Van Pommeren Jascha

Classifications

• F16C2233/00

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

• F16C2220/42

  by working of thin-walled material such as sheet or tube · CPC title

• F16C41/008

  Identification means, e.g. markings, RFID-tags; Data transfer means · CPC title

• F16C41/00 Primary

  Other accessories, {e.g. devices integrated in the bearing not relating to the bearing function as such} · CPC title

• F16C33/7886 Primary

  mounted outside the gap between the inner and outer races, e.g. sealing rings mounted to an end face or outer surface of a race · CPC title