IP Library Granted Patent US 7,658,370
Granted Patent B2
US 7,658,370 · App. 11/848,299 · Granted Feb 9, 2010

Rope winch

Assignee: Rotzler GmbH & Co. KG
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Quick Facts
Patent No.
US 7,658,370
App. No.
11/848,299
Granted
Feb 9, 2010
Kind
B2
Abstract

A rope winch has at least one bearing support and a rope drum supported on the at least one bearing support so as to be rotatable about a drive axis. A drive motor and a gear connected to the drive motor are provided, wherein the drive motor drives the rope drum about the drive axis through the gear. At least one sensor that senses a load acting on the rope drum is provided. An exchangeably secured component that is exchangeable without dismounting the at least one bearing support is provided. The at least one sensor is arranged on the exchangeably secured component.

Claims (48)

1. A rope winch comprising:

at least one bearing support;

a rope drum supported on the at least one bearing support so as to be rotatable about a drive axis;

a drive motor and a gear connected to the drive motor, wherein the drive motor drives the rope drum about the drive axis through the gear;

at least one sensor that senses a load acting on the rope drum;

an exchangeably secured component that is exchangeable without dismounting the at least one bearing support, wherein the at least one sensor is arranged on the exchangeably secured component;

wherein the gear is supported on the exchangeably secured component that is interposed between the gear and the at least one bearing support and supported on the at least one bearing support.

2. The rope winch according to claim 1 , wherein the at least one sensor has a connecting line for connecting the at least one sensor to a control, wherein the exchangeably secured component has a passage and the connecting line extends through the passage to the exterior of the rope winch.

3. The rope winch according to claim 1 , comprising securing means that secure the exchangeably secured component on the at least one bearing support, wherein the securing means are accessible from a side of the at least one bearing support facing away from the rope drum.

4. The rope winch according to claim 1 , wherein the exchangeably secured component is comprised of a material that is different from a material from which the at least one bearing support is made.

5. The rope winch according to claim 1 , wherein the at least one bearing support is made from cast material.

6. The rope winch according to claim 1 , wherein the at least one bearing support is made from gray cast iron.

7. The rope winch according to claim 1 , wherein two of the at least one bearing support are provided and the rope drum has two ends and the two ends are supported on said two bearing supports.

8. The rope winch according to claim 7 , wherein the drive motor is supported on a first one of said two bearing supports and the gear is supported on a second one of said two bearing supports.

9. The rope winch according to claim 1 , wherein the exchangeably secured component is fixedly connected to the at least one bearing support to prevent relative rotation between the exchangeably secured component and the at least one bearing support and to allow movement of the exchangeably secured component relative to the at least one bearing support in a direction of the drive axis of the rope drum.

10. The rope winch according to claim 1 , wherein the exchangeably secured component has a circumferential groove in which the at least one sensor is arranged.

11. The rope winch according to claim 10 , wherein the exchangeably secured component has a first section and a second section, wherein the first section is fixedly connected to the at least one bearing support to prevent rotation between the first section and the least one bearing support and the second section is fixedly connected to a stationary planet support of the gear to prevent rotation between the second section and the stationary planet support, wherein the circumferential groove is arranged between the first and second sections.

12. A rope winch comprising:

at least one bearing support;

a rope drum supported on the at least one bearing support so as to be rotatable about a drive axis;

a drive motor and a gear connected to the drive motor, wherein the drive motor drives the rope drum about the drive axis through the gear;

at least one sensor that senses a load acting on the rope drum;

an exchangeably secured component that is exchangeable without dismounting the at least one bearing support, wherein the at least one sensor is arranged on the exchangeably secured component;

wherein the exchangeably secured component penetrates the at least one bearing support.

13. A rope winch comprising:

at least one bearing support;

a rope drum supported on the at least one bearing support so as to be rotatable about a drive axis;

a drive motor and a gear connected to the drive motor, wherein the drive motor drives the rope drum about the drive axis through the gear;

at least one sensor that senses a load acting on the rope drum;

an exchangeably secured component that is exchangeable without dismounting the at least one bearing support, wherein the at least one sensor is arranged on the exchangeably secured component;

wherein the exchangeably secured component is a bolt.

14. A rope winch comprising:

at least one bearing support;

a rope drum supported on the at least one bearing support so as to be rotatable about a drive axis;

a drive motor and a gear connected to the drive motor, wherein the drive motor drives the rope drum about the drive axis through the gear;

at least one sensor that senses a load acting on the rope drum;

an exchangeably secured component that is exchangeable without dismounting the at least one bearing support, wherein the at least one sensor is arranged on the exchangeably secured component;

wherein the gear is a planetary gear comprising planet wheels and a stationary planet support, wherein the planet wheels are supported on the stationary planet support.

15. The rope winch according to claim 14 , wherein the stationary planet support is fixedly connected to the exchangeably secured component to prevent relative rotation between the stationary planet support and the exchangeably secured component and to allow movement of the exchangeably secured component relative to the stationary planet support in a direction of the drive axis of the rope drum.

16. The rope winch according to claim 15 , wherein the stationary planet support and the exchangeably secured component are connected by a toothing.

17. The rope winch according to claim 15 , wherein the stationary planet support and the exchangeably secured component are connected by a serration.

18. A rope winch comprising:

at least one bearing support;

a rope drum supported on the at least one bearing support so as to be rotatable about a drive axis;

a drive motor and a gear connected to the drive motor, wherein the drive motor drives the rope drum about the drive axis through the gear;

at least one sensor that senses a load acting on the rope drum;

an exchangeably secured component that is exchangeable without dismounting the at least one bearing support, wherein the at least one sensor is arranged on the exchangeably secured component;

wherein the at least one sensor is a wire strain gauge.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 24, 2017
From: ROTZLER DEUTSCHLAND GMBH + CO. KG
To: ROTZLER HOLDING GMBH + CO. KG
Reel/Frame 043075/0370 →
CHANGE OF NAME Recorded May 12, 2017
From: ROTZLER GMBH + CO. KG
To: ROTZLER DEUTSCHLAND GMBH + CO. KG
Reel/Frame 042456/0131 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 31, 2007
From: ROTZLER, JURGEN; WALZ, STEFFEN
To: ROTZLER GMBH & CO. KG
Reel/Frame 019770/0908 →
Priority Claims (1)
EP 06018165 · Aug 31, 2006 · regional
Continuity (1)
Related Publication 20080054237A1 · Mar 6, 2008