Cable winch, method for winding a cable winch of this type, and crane having a cable winch

Patent metadata

Field	Value
Publication number	US-12434949-B2
Application number	US-202217937697-A
Country	US
Kind code	B2
Filing date	Oct 3, 2022
Priority date	Apr 14, 2020
Publication date	Oct 7, 2025
Grant date	Oct 7, 2025

Abstract

The invention relates to a method for winding a cable winch, in which method a plurality of cable winding layers is wound one over the other, a plurality of cables being wound, in multiple strands, onto the same winding region of the cable winch such that the cables are adjacent to each other in the same cable winding layer.

First claim

We claim:

1. A method of winding a cable winch, in which method cable winding layers are wound one over the other,
wherein a plurality of cables or cable ends are wound in the cable winding layers comprising multiple strands onto the same winding region of the cable winch such that in each of the cable winding layers, the plurality of cables or cable ends are wound adjacent to each other,
wherein the plurality of cables or cable ends are wound side by side in the same sequence in each of the cable winding layers,
wherein successive cable winding layers are wound with pitches opposite to each other so that the cable winding turns of successive cable winding layers cross each other at an acute crossing angle,
wherein a separate cable guide element is used for each of the plurality of cables to guide each cable in an axial direction and a direction transverse to the axial direction, and
wherein the plurality of cables are guided such that the plurality of cables are wound onto a cable drum with a spread in terms of an offset in a circumferential direction defining an acute spread angle when viewing the cable winch in the direction of the cable winch rotation axis.

2. The method of claim 1 , wherein the plurality of cables or cable ends are wound up simultaneously at the same cable speed.

3. The method of claim 1 , wherein the plurality cables or cable ends, as viewed in the direction of the cable winch rotation axis, are leading and trailing wound by the acute spread angle with respect to each other.

4. The method of claim 1 , wherein the plurality of cables or cable ends are wound alternately side by side in the same sequence in each of the cable winding layers.

5. The method of claim 1 , wherein each of the cable winding layers is wound with a constant pitch, wherein the constant pitch is approximately an integer multiple of the cable diameter, and wherein the acute crossing angle is constant.

6. The method of claim 1 , wherein the cable winding layers are wound with at least partially varying pitches or a pitch that deviates from an integer multiple of the cable diameter.

7. The method of claim 1 , wherein the acute crossing angle is more than 10°.

8. A cable winch having a cable drum on which a winding region is enclosed by two flanged wheels which are spaced apart from one another and in which a plurality of cables or cable ends can be wound up,
wherein when the plurality of cables or cable ends are in a wound configuration on the cable winch, the plurality of cables or cable ends are wound in cable winding layers comprising multiple strands onto the same winding region of the cable winch such that in each of the cable winding layers, the plurality of cables or cable ends are wound adjacent to each other,
wherein when the plurality of cables or cable ends are in the wound configuration on the cable winch, the plurality of cables or cable ends are wound side by side in the same sequence in each of the cable winding layers,
wherein when the plurality of cables or cable ends are in the wound configuration on the cable winch, successive cable winding layers are wound with pitches opposite to each other such that the cable winding turns of successive cable winding layers cross each other at an acute crossing angle,
wherein a separate cable guide element for each of the plurality of cables is configured to guide each respective cable in an axial direction and a direction transverse to the axial direction, and
wherein the plurality of cables are guided such that the plurality of cables are wound onto a cable drum with a spread in terms of an offset in a circumferential direction defining an acute spread angle when viewing the cable winch in the direction of the cable winch rotation axis.

9. The cable winch of claim 8 , wherein the plurality of cables or cable ends are wound alternately side by side in the same sequence in each of the cable winding layers.

10. The cable winch of claim 8 , wherein the acute crossing angle is constant.

11. The cable winch of claim 10 , wherein the acute crossing angle is greater than 10°.

12. The cable winch of claim 8 , wherein a reeling device is provided for guiding at least one of the plurality of cables or cable ends during reeling and unwinding, wherein the reeling device comprises the separate cable guide element for each of the plurality of cables, wherein the separate cable guide element for each of the plurality of cables is mounted adjustably in the axial direction at least approximately parallel to the cable winch rotation axis and is actively adjustable by a feed drive or by a respective separate feed drive.

13. The cable winch of claim 12 , wherein a joint cable guide element is provided for at least two of the plurality of cables or cable ends, and is axially adjustable by the feed drive.

14. The cable winch of claim 12 , wherein the separate cable guide element for each of the plurality of cables is configured and/or disposed such that a first cable can be wound onto the cable drum in a trailing manner and a second cable can be wound onto the cable drum in a leading manner, and the first cable and the second cable or an end of the first cable and an end of the second cable such that the acute spread angle is in the range of 5° to 20° between them in a viewing direction parallel to the cable winch rotation axis.

15. The cable winch of claim 14 , wherein the cable drum comprises a drum shell outer surface at least partially with a groove profiling having a pitch.

16. The cable winch of claim 15 , wherein a cable inlet portion of the drum shell outer surface is provided with the groove profiling, while a portion of the drum shell outer surface spaced from the cable inlet portion is configured to be without grooves.

17. A hoisting device comprising at least the cable winch of claim 8 .

18. The hoisting device of claim 17 configured as a crane comprising a tower revolving crane.

19. The hoisting device of claim 18 , wherein the tower revolving crane comprises a height-adjustable mounted crane operator's cabin, wherein the height-adjustable mounted crane operator's cabin is height-adjustable at least by the cable winch and the plurality of cables or cable ends wound thereon.

20. A conveying device for conveying persons with at least one cable winch configured according to claim 8 .

21. The conveying device of claim 20 configured as a passenger elevator.

Assignees

• Liebherr Components Biberach Gmbh

Inventors

• Schmid Thomas
• Hepp Gerd

Classifications

• B66C13/54

  Operator's stands or cabins · CPC title

• B66B11/0075

  with hoisting rope or cable positively attached to a winding drum · CPC title

• B66B15/06

  Drums · CPC title

• B66D1/38 Primary

  by means of guides movable relative to drum or barrel · CPC title