Plain bearing bush for plain bearings with increased load-bearing capacity

Patent metadata

Field	Value
Publication number	US-11852190-B2
Application number	US-202118025120-A
Country	US
Kind code	B2
Filing date	Sep 20, 2021
Priority date	Sep 24, 2020
Publication date	Dec 26, 2023
Grant date	Dec 26, 2023

Abstract

A plain bearing bush includes a cylindrical main body having a first shell surface and a second shell surface. The first and second shell surfaces include a plurality of exchange bores for a lubricant. At least one of the exchange bores has a first diameter on the first shell surface and a second diameter on the second shell surface, with the second diameter being greater than the first diameter for an increase in a load-bearing capability of the plain bearing bush. Two of the exchange bores are arranged in axial spaced-apart relation and connected to one another by a pocket depression.

First claim

What is claimed is:

1. A plain bearing bush, comprising a cylindrical main body having a first shell surface and a second shell surface, said first and second shell surfaces including a plurality of exchange bores for a lubricant, at least one of the exchange bores having a first diameter on the first shell surface and a second diameter on the second shell surface, with the second diameter being greater than the first diameter for an increase in a load-bearing capability of the plain bearing bush, wherein two of the exchange bores are arranged in axial spaced-apart relation and connected to one another by a pocket depression.

2. The plain bearing bush of claim 1 , wherein the first shell surface is a side of the plain bearing bush which side faces a lubricant feed.

3. The plain bearing bush of claim 1 , wherein the second diameter of the at least one of the exchange bores is formed by a countersunk depression and/or a stepped bore.

4. The plain bearing bush of claim 1 , wherein the countersunk depression has an opening angle of from 45° to 135°.

5. The plain bearing bush of claim 1 , wherein the pocket depression runs in a beveled manner with respect to an axial direction and with respect to a circumferential direction of the main body on a substantially constant radius with respect to an axial center line of the main body.

6. The plain bearing bush of claim 1 , further comprising a plurality of said pocket depression arranged in a circumferential arrowhead pattern and/or zigzag pattern.

7. The plain bearing bush of claim 1 , wherein the second diameter corresponds to from 1.05 times to 6.00 times the first diameter.

8. The plain bearing bush of claim 1 , configured as a floating bush.

9. The plain bearing bush of claim 1 , wherein the at least one of the exchange bores includes an outlet portion having the second diameter and configured from 10% to 100% of a bore length of the at least one of the exchange bores.

10. A plain bearing, comprising:
a stationary component; and
a plain bearing bush arranged on the stationary component and comprising a cylindrical main body having a first shell surface and a second shell surface, said first and second shell surfaces including a plurality of exchange bores for a lubricant, at least one of the exchange bores having a first diameter on the first shell surface and a second diameter on the second shell surface, with the second diameter being greater than the first diameter for an increase in a load-bearing capability of the plain bearing bush, wherein two of the exchange bores are arranged in axial spaced-apart relation and connected to one another by a pocket depression; and
a rotating component attached rotatably on the plain bearing bush.

11. The plain bearing of claim 10 , wherein the plain bearing has a Sommerfeld number of from 0.10 to 10.00.

12. A planetary transmission, comprising:
a planetary carrier;
a plurality of planetary gears; and
a plain bearing configured to rotatably arrange each of the plurality of planetary gears in the planetary carrier, said plain bearing configured as set forth in claim 10 .

13. The planetary transmission of claim 12 , wherein the plain bearing has a Sommerfeld number of from 0.10 to 10.00.

14. A wind power plant, comprising a nacelle including a generator and a transmission connected in a torque-transmitting manner to the generator, said transmission being configured as a planetary transmission as set forth in claim 12 .

15. An industrial application, comprising: a drive unit; an output unit; and a transmission connecting the drive unit to the output unit, said transmission being configured as a planetary transmission as set forth in claim 12 .

16. A computer program product embodied on a non-transitory computer readable medium comprising commands which, when executed by a computer, cause the computer to simulate an operating behavior of a plain bearing bush arranged in a plain bearing, said plain bearing bush comprising a cylindrical main body having a first shell surface and a second shell surface, said first and second shell surfaces including a plurality of exchange bores for a lubricant, at least one of the exchange bores having a first diameter on the first shell surface and a second diameter on the second shell surface, with the second diameter being greater than the first diameter for an increase in a load-bearing capability of the plain bearing bush, wherein two of the exchange bores are arranged in axial spaced-apart relation and connected to one another by a pocket depression.

Assignees

• Flender Gmbh

Inventors

• Leuer Philipp
• Prusak Robert
• Schlegel Eugen

Classifications

• F16C17/02 Primary

  for radial load only · CPC title

• F03D9/25

  the apparatus being an electrical generator (F03D9/22 takes precedence) · CPC title

• F03D15/00

  Transmission of mechanical power · CPC title

• F03D80/70

  Bearing or lubricating arrangements · CPC title

• F16C33/1045 Primary

  Details of supply of the liquid to the bearing · CPC title