Traction coupling

Patent metadata

Field	Value
Publication number	US-12409870-B2
Application number	US-202117535471-A
Country	US
Kind code	B2
Filing date	Nov 24, 2021
Priority date	May 28, 2019
Publication date	Sep 9, 2025
Grant date	Sep 9, 2025

Abstract

A traction coupling including a coupling rod, a bearing block, and a coupling head supported by the coupling rod. The coupling rod extends in an axial direction from an attachment end to the coupling head, in a region of the attachment end, the coupling head is mounted in a pivotable manner on the bearing block in order to be attached to a rail vehicle. The traction coupling also including at least one lubricating device having at least one lubricant source and at least one lubricant line connected to the lubricant source for lubrication of joints and/or movement points in the traction coupling. The joints and/or movement points of various components of the following group of components of the traction coupling are lubricated with the lubricating device the coupling rod, the coupling head, and the bearing block.

First claim

What is claimed is:

1. A traction coupling, comprising:
a coupling rod;
a bearing block;
a coupling head supported by the coupling rod, the coupling rod extends in an axial direction from an attachment end to the coupling head, in a region of the attachment end, the coupling head is mounted in a pivotable manner on the bearing block of the traction coupling in order to be attached to a rail vehicle; and
at least one lubricating device including:
at least one lubricant source; and
at least one lubricant conveying lubricant line connected to the at least one lubricant source for lubrication of joints and/or movement points in the traction coupling, wherein the joints and/or movement points of various components of the following group of components of the traction coupling are lubricated with the at least one lubricating device:
the coupling rod;
the coupling head; and
the bearing block;

wherein the at least one lubricant source is provided for lubrication of the joints and/or movement points of the components in the group of components;
wherein the at least one lubricant source is arranged on one of the components in the group of components or is in the vicinity of a connection of the bearing block on a carriage of the rail vehicle; and
at least one lubricant distributor positioned between the at least one lubricant source and the various joints and/or movement points of at least one of the components, the at least one lubricant distributor having at least one lubricant supply line coupled thereto, and a plurality of lubricant discharge lines coupled thereto.

2. The traction coupling according to claim 1 , wherein the at least one lubricant source is a plurality of lubricant sources with at least one of the plurality of lubricant sources being provided for each component in the group of components.

3. The traction coupling according to claim 2 , wherein each of the lubricant sources is fastened to the respective component or is integrated into the respective component.

4. The traction coupling according to claim 3 , wherein the lubricant sources each with respective lubricant lines of the components connected thereto are separated from one another.

5. The traction coupling according to claim 1 , further comprising at least one control device controlling lubricant delivery from the at least one lubricant source so that the delivery of lubricant occurs continuously.

6. The traction coupling according to claim 1 , further comprising at least one control device controlling lubricant delivery from the at least one lubricant source so that the delivery of lubricant occurs at regular intervals or in a discontinuous manner based on a requirement request to the control device which occurs by way of a lubricant sensor which is connected to the respective joint and/or movement point and detects a lubricant status at the joint and/or movement point, and/or by way of a pressure sensor in the lubricant line.

7. The traction coupling according to claim 1 , wherein the joints and/or movement points include at least two of the following areas:
one or several of the joints or pivot points between two components of the traction coupling;
one or more of the movement points between two components movable relative to each other in the axial direction or in a perpendicular or an angular direction relative to the axial direction;
one or more of the movement points between two components movable relative to each other in the circumferential direction to the axial direction;
one or more of the movement points on actuating mechanisms of one or more integrated components in the coupling head, the integrated components being an electric coupling and/or an air coupling;
one or more outside surfaces on one or more of the components;
one or more inside surfaces on one or more of the components; and/or
one or more interior spaces of the traction coupling.

8. The traction coupling according to claim 1 , wherein the lubricating device includes at least one lubricant spray head for spraying of a surface with lubricant.

9. The traction coupling according to claim 8 , wherein the lubricating device further includes at least one spot lubricant dispenser for dispensing lubricant in a punctiform and/or linear pattern.

10. The traction coupling according to claim 1 , wherein the at least one lubricant source includes a heating device for heating the lubricant.

11. The traction coupling according to claim 1 , wherein the lubricating device includes a pressure sensor which captures a lubricant pressure in the at least one lubricant source or in the lubricant line, directly before or in the region of a lubricant distributor.

12. The traction coupling according to claim 11 , further comprising a warning device arranged to indicate a refill requirement in the at least one lubricant source based on signals transmitted by the pressure sensor and/or to indicate a fault in the lubricating device.

13. The traction coupling according to claim 1 , wherein the traction coupling is designed according to at least one of the following coupling types:
a center buffer coupling type;
an automatic traction coupling type;
an AAR-coupling type;
a coupling type with a Willison profile;
an articulated coupling type; or
a telescopic type coupling.

Assignees

• Voith Patent Gmbh

Inventors

• Shi Minzhe
• Deac Ioan
• Dereymaeker Yves

Classifications

• F16N7/00

  Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated · CPC title

• B61G5/08

  for fluid conduits · CPC title

• B61G3/04 Primary

  with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type · CPC title

• B61G3/00

  Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements · CPC title

• B61C17/08 Primary

  Lubrication systems (in general F16N) · CPC title