Structural element having at least one slide surface

Patent metadata

Field	Value
Publication number	US-10082176-B2
Application number	US-201514950242-A
Country	US
Kind code	B2
Filing date	Nov 24, 2015
Priority date	Nov 27, 2014
Publication date	Sep 25, 2018
Grant date	Sep 25, 2018

Abstract

A structural element has at least one slide layer and is formed to slide via the at least one slide layer along at least one line of motion. The slide layer includes a fiber-reinforced material containing at least one multi-component fiber that includes at least one first component, which is disposed in or on at least one first structure, and at least one second component, which is disposed in or on at least one second structure. The first and second structures are materially-bonded together and are disposed parallel to each other in a main extension direction of the at least one multi-component fiber. Either the first component or the second component is polytetrafluoroethylene. The structural element may be formed, e.g., as a bearing ring, a slide bearing bushing, a linear guide or a spherical bearing ring.

First claim

We claim:

1. A structural element comprising:
at least one surface comprising a slide surface, the slide surface of the structural element being defined by a slide layer on the structural element, wherein:
the structural element is configured to slide via the at least one slide surface along at least one line of motion,
the slide layer comprises a fiber-reinforced material,
the fiber-reinforced material includes at least one multi-component fiber embedded in an epoxy resin matrix, the multi-component fiber including at least one first component, which is disposed in at least one first structure, and at least one second component, which is disposed in at least one second structure,
the first and second structures are materially-bonded together and are disposed parallel to each other in a main extension direction of the at least one multi-component fiber,
either the first component or the second component is polytetrafluoroethylene, and
the structural element is formed as a bearing ring, a slide bearing bushing, a linear guide or a spherical bearing ring.

2. The structural element according to claim 1 , wherein the at least one multi-component fiber has a length that is greater than 1% of a characteristic dimension of the slide layer along the line of motion.

3. The structural element according to claim 1 , wherein the at least one multi-component fiber has a diameter between 3 μm and 30 μm.

4. The structural element according to claim 1 , wherein the at least one multi-component fiber is disposed in a yarn that has a linear mass density between 200-1200 dtex.

5. The structural element according to claim 1 , wherein the first structure and the second structure have the same cross-section.

6. The structural element according to claim 1 , wherein the first component is embedded in the second component.

7. A structural element comprising at least one slide layer, wherein:
the structural element is formed to slide via the at least one slide layer along at least one line of motion,
the slide layer comprises a fiber-reinforced material,
the fiber-reinforced material includes at least one multi-component fiber that includes at least one first component, which is disposed in or on at least one first structure, and at least one second component, which is disposed in or on at least one second structure,
the first and second structures are materially-bonded together and are disposed parallel to each other in a main extension direction of the at least one multi-component fiber, and
either the first component or the second component is polytetrafluoroethylene,
wherein the first component is disposed perpendicular to its main extension direction in at least two layers that accommodate between them at least one layer of the second component.

8. The structural element according to claim 1 , wherein the first component is disposed in or on at least one tip and/or corner of a cross-section of the at least one multi-component fiber and the second component is disposed in a medial cross-section dimension of the at least one multi-component fiber.

9. The structural element according to claim 1 , wherein the at least one multi-component fiber comprises a plurality of multi-component fibers embedded in the epoxy resin matrix.

10. The structural element according to claim 9 , wherein the second component comprises polyamide (PA), polypropylene (PP), polycarbonate (PC) and/or polyester (PES).

11. The structural element according to claim 10 , wherein the at least one multi-component fiber has an aspect ratio of at least 1000.

12. A structural element comprising at least one slide layer, wherein:
the structural element is formed to slide via the at least one slide layer along at least one line of motion,
the slide layer comprises a fiber-reinforced material,
the fiber-reinforced material includes at least one multi-component fiber that includes at least one first component, which is disposed in or on at least one first structure, and at least one second component, which is disposed in or on at least one second structure,
the first and second structures are materially-bonded together and are disposed parallel to each other in a main extension direction of the at least one multi-component fiber, and
either the first component or the second component is polytetrafluoroethylene,
wherein the at least one multi-component fiber has a length that is greater than 1% of a characteristic dimension of the slide layer along the line of motion,
wherein the at least one multi-component fiber has a diameter between 3 μm and 30 μm,
wherein the at least one multi-component fiber is disposed in a yarn that has a linear mass density between 200-1200 dtex, and
further comprising a polymer matrix bonded to the yarn,
wherein the polymer matrix comprises an epoxy resin.

13. The structural element according to claim 12 , wherein the at least one multi-component fiber has a length that is greater than 30% of the characteristic dimension of the slide layer along the line of motion.

14. The structural element according to claim 13 , wherein the structural element is an annular slide bushing and further comprises glass fibers.

15. The structural element according to claim 14 , wherein the at least one multi-component fiber is a continuous fiber that extends along the entire characteristic dimension of the annular slide bushing.

16. The structural element according to claim 15 , wherein the at least one multi-component fiber has a cross-section of a star and the polytetrafluoroethylene disposed at, in or on tips of the star.

17. The structural element according to claim 1 , wherein the structural element is formed as a bearing ring or a slide bearing bushing.

18. The structural element according to claim 1 , wherein the first component comprises polytetrafluorethylene and the second component is polytetrafluorethylene-free.

19. The structural element according to claim 1 , wherein the first and second structures are directly materially bonded together.

20. The structural element according to claim 12 , wherein the first and second structures are directly materially bonded together and wherein the first component comprises polytetrafluorethylene and the second component is polytetrafluorethylene-free.

Assignees

• Henninger Frank
• Vierling Andreas
• Skf Ab

Inventors

• Henninger Frank
• Vierling Andreas

Classifications

• F16C2208/86

  Epoxy resins · CPC title

• F16C2208/02

  comprising fillers, fibres · CPC title

• F16C33/206

  with three layers · CPC title

• F16C2240/40

  Linear dimensions, e.g. length, radius, thickness, gap · CPC title

• F16C2208/32

  Polytetrafluorethylene [PTFE] (F16C2208/58 takes precedence) · CPC title