Bearing housing

Patent metadata

Field	Value
Publication number	US-11470780-B2
Application number	US-202117328062-A
Country	US
Kind code	B2
Filing date	May 24, 2021
Priority date	Jun 5, 2019
Publication date	Oct 18, 2022
Grant date	Oct 18, 2022

Abstract

A bearing coupler assembly that has a bearing housing sized to at least partially receive a bearing assembly, the bearing housing defining a bearing axis therethrough, a shaft positioned at least partially through the bearing housing along the bearing axis, the shaft defining a shaft lip and a fastener end, the bearing assembly coupling the shaft to the bearing housing so the shaft can rotate about the bearing axis relative to the bearing housing, a fastener configured to be coupled to the fastener end of the shaft, a tone wheel positioned axially along the bearing axis between the fastener and the bearing assembly, the tone wheel having at least one indicator, a sensor coupled to the bearing housing and configured to identify when the indicator passes thereby.

First claim

The invention claimed is:

1. An extractor assembly, comprising:
a frame structure configured to couple the extractor assembly to a work machine;
a support tube coupled to the frame structure along a bearing axis;
a fan coupled to the support tube to rotate about the bearing axis relative to the support tube;
wherein, the fan is rotationally coupled to the support tube through a bearing coupler assembly, the bearing coupler assembly comprising:
a bearing housing sized to at least partially receive a bearing assembly;
a shaft positioned at least partially through the bearing housing along the bearing axis, the shaft defining a shaft lip, a fastener end, and a fan coupler end, the bearing assembly coupling the shaft to the bearing housing so the shaft can rotate about the bearing axis to rotate the fan coupled to the fan coupler end;
a fastener configured to be coupled to the fastener end of the shaft;
a tone wheel positioned axially along the bearing axis between the fastener and the bearing assembly, the tone wheel having an indicator; and
a sensor coupled to the bearing housing and configured to identify when the indicator passes thereby;

wherein, the tone wheel rotates with the fan and the sensor is configured to identify the rotation speed of the fan;
further wherein, the fastener compresses the bearing assembly between the tone wheel and the shaft lip.

2. The extractor assembly of claim 1 , further comprising a motor configured to rotate the fan, wherein the motor is coupled to the shaft through a motor shaft coupler.

3. The extractor assembly of claim 2 , wherein the motor shaft coupler is a splined recess defined within the shaft.

4. The extractor assembly of claim 2 , wherein the motor has a motor housing coupled to the bearing housing.

5. The extractor assembly of claim 4 , wherein the bearing housing is coupled to an end plate of the support tube.

6. The extractor assembly of claim 1 , further comprising a sensor port defined in the bearing housing, wherein the sensor port establishes a calibration distance to the tone wheel.

7. The extractor assembly of claim 1 , wherein the at least one indicator is a radial extension defined in the tone wheel.

8. The extractor assembly of claim 1 , wherein the at least one indicator includes a plurality of radial extensions defined in the tone wheel.

9. The extractor assembly of claim 1 , wherein the fastener end of the shaft is threaded and the fastener is a nut, wherein the nut is threadably coupled to the fastener end at a torque value to apply the force on the tone wheel.

10. The extractor assembly of claim 1 , wherein the tone wheel directly contacts the fastener.

11. The extractor assembly of claim 1 , wherein the fastener applies the force to the tone wheel towards the bearing assembly to compress the bearing assembly between the tone wheel and the shaft lip.

12. The extractor assembly of claim 1 , wherein the bearing assembly comprises at least one tapered roller bearing.

13. The extractor assembly of claim 12 , wherein the bearing assembly comprises a first tapered roller bearing and a second tapered roller bearing.

14. The extractor assembly of claim 13 , wherein the first and second tapered roller bearings are positioned substantially one-hundred and eighty degrees opposed to one another along the bearing axis so an inner race of the first bearing contacts the tone wheel and an inner race of the second bearing contacts the shaft lip.

15. A harvesting machine, comprising:
a main frame;
at least one ground-engaging mechanism for supporting the main frame;
a feed mechanism configured to receive a crop and chop it into billets;
a cleaning chamber comprising the extractor assembly of claim 1 .

16. A harvesting machine, comprising:
a main frame;
at least one ground-engaging mechanism for supporting the main frame;
a feed mechanism configured to receive a crop and chop it into billets;
a cleaning chamber having a primary extractor coupled to the harvesting machine with a frame structure, wherein the primary extractor further comprises a fan assembly for directing flow through a duct, the fan assembly comprising:
a support tube coupled to the frame structure;
a motor having a motor shaft;
a bearing coupler assembly having a bearing shaft rotationally coupled to a bearing housing with a bearing assembly;
a motor shaft coupler defined in the bearing shaft, the motor shaft coupler comprising a splined recess defined within the bearing shaft;

wherein, the motor shaft is removably coupled to the bearing shaft at the motor shaft coupler on one end and the fan is coupled to the other end of the bearing shaft;
wherein, the bearing coupler assembly contains a tone wheel and a sensor and is configured to identify the rotation speed of the fan.

17. The harvesting machine of claim 16 , further wherein the bearing assembly is positioned between a fastener end and a shaft lip of the bearing shaft, wherein a fastener is coupled to the fastener end to apply an axial load on the bearing assembly by applying an axial force to the tone wheel towards the shaft lip.

18. The harvesting machine of claim 16 , wherein the bearing assembly comprises at least one tapered roller bearing.

19. The harvesting machine of claim 18 , wherein the bearing assembly comprises a first tapered roller bearing and a second tapered roller bearing.

20. The harvesting machine of claim 19 , wherein the first and second tapered roller bearings are positioned substantially one-hundred and eighty degrees opposed to one another along the bearing axis so an inner race of the first bearing contacts the tone wheel and an inner race of the second bearing contacts the shaft lip.

Assignees

• Deere & Co

Inventors

• Reiners Alexander C
• Dighton John A
• Burch Guy
• Gettig Blake C
• Fattepur Surfraj
• Rodrigue Todd J

Classifications

• F16C2229/00

  Setting preload · CPC title

• A01D45/10 Primary

  of sugar cane {(for digging sugar cane A01D31/00)} · CPC title

• F16C19/548

  in O-arrangement · CPC title

• F16C41/007

  Encoders, e.g. parts with a plurality of alternating magnetic poles · CPC title

• F16C2310/00

  Agricultural machines · CPC title