Rope Winch Load Sensor Exchangeable Mounting Plate

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Solution Overview

Problem

Existing rope winches require significant disassembly and high maintenance effort to exchange or repair torque sensors, complicating the process and potentially affecting measurement precision due to bearing support deformations.

Innovation Solution

The load sensor is secured on an exchangeable component that can be easily replaced without dismounting the bearing support, allowing for simple retrofitting and precise load detection, with the component penetrating or extending through the bearing support and using a material suitable for sensor placement, such as steel, to ensure accurate measurements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the torque sensor is arranged on the bearing support, then the load detection is possible, but the sensor exchange requires dismounting the bearing support and drive motor, increasing maintenance complexity

Engineering Contradiction:
Improveload detection precisionVSAvoidsensor exchange simplicity
Core Design Contradiction:
Measurement precisionVSEase of repair

Solution Approach 1:

The bearing support is segmented into a first bearing support portion and a second bearing support portion, with the torque sensor arranged on the first bearing support portion. This segmentation allows the sensor to be accessed and exchanged without removing the entire bearing support assembly, reducing maintenance complexity while maintaining measurement precision.

Inventive Principle:
Principle #1Segmentation

2Ease of manufacture

If the torque sensor is arranged on the bearing support, then load detection is achieved, but bearing support deformations affect measurement precision

Engineering Contradiction:
Improvesensor installation simplicityVSAvoidload detection accuracy
Core Design Contradiction:
Ease of manufactureVSMeasurement precision

Solution Approach 1:

A sensor mounting plate is introduced as an intermediary component between the bearing support and the torque sensor. The sensor mounting plate is rigidly connected to the bearing support, providing a stable and precise mounting surface for the torque sensor that is not directly affected by bearing support deformations, thus maintaining measurement accuracy.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If the sensor is arranged on a fixed component, then measurement stability is improved, but the component cannot be easily exchanged

Engineering Contradiction:
Improvemeasurement stabilityVSAvoidcomponent exchangeability
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The sensor mounting plate is designed with a dynamic connection to the bearing support through a connection element that allows for easy assembly and disassembly. This dynamic connection maintains the rigid connection needed for measurement stability during operation while enabling simple exchange of the sensor mounting plate and sensor assembly during maintenance.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS7658370B2Rope winch
Publication Date: 2010.02.09 ROTZLER GMBH & CO
  • US7658370B2 patent drawing
  • US7658370B2 patent drawing
  • US7658370B2 patent drawing

AI summary

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.