Cable Drum Support With Shiftable Arms and Driven Bearing Pins
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Solution Overview
Problem
Existing cable drum supports are difficult to operate manually due to their large weight, require significant space for maneuvering, and often suffer from mechanical stress on bearing mandrels, making quick changes and safe rotation challenging.
Innovation Solution
A cable drum support with parallel holding arms and rotatably supported bearing pins, actuated by hydraulic systems, allowing for easy insertion and removal of cable drums and enabling automated rotation and shifting, ensuring balanced support and safe operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a continuous bearing mandrel is used to support the cable drum, then the cable drum can be rotatably supported, but the operability is made more difficult due to high lever forces acting on the mandrel
Solution Approach 1:
The continuous bearing mandrel is segmented into multiple discrete bearing pins arranged on parallel holding arms. This segmentation distributes the lever forces across multiple points rather than concentrating them on a single mandrel, reducing the mechanical stress and improving operability while maintaining rotational support capability.
Solution Approach 2:
Multiple bearing pins on parallel holding arms are combined to collectively support the cable drum. The holding arms work together as an integrated system, providing distributed support that reduces individual component stress while maintaining overall structural integrity and rotational functionality.
2Reliability
If a cable drum carriage with chassis is used to hold the cable drum, then the cable drum can be safely guided and used, but the manual shifting and pivoting becomes difficult or impossible due to large weight
Solution Approach 1:
The heavy mechanical carriage system is replaced with a lighter cable drum support that attaches directly to the construction machine's working arm. This substitution eliminates the need for manual shifting of heavy carriages, as the support is integrated with the machine's existing mechanical system and can be repositioned through hydraulic actuation.
Solution Approach 2:
The cable drum support is designed as a multi-functional attachment that can be quickly connected and disconnected from the working arm. It serves both as a support structure and as an integrated part of the machine's operational system, allowing the same support to handle multiple cable drums of different sizes through adjustable bearing pin positions.
3Loss of time
If a long-extending mandrel is used for quick change between cable drums, then quick change is possible, but large free space is required for the construction machine to maneuver
Solution Approach 1:
The long mandrel is segmented into multiple compact bearing pins arranged in parallel on holding arms. This segmentation allows the support structure to maintain a compact footprint, reducing the maneuvering space required while enabling quick cable drum changes through independent holding arm adjustment.
Solution Approach 2:
The holding arms are made dynamically adjustable along the cross beam, allowing the bearing pins to be quickly repositioned for different cable drum sizes. This dynamic adjustment capability provides quick change functionality without requiring a long fixed mandrel, thereby reducing the space needed for machine maneuvering.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Facilitates simple and safe handling of large cable drums, reducing operational difficulties and mechanical stress, while integrating seamlessly with existing construction machinery.
Implementation Method 1
At least one actuatable actuator, which is formed to shift at least the one of the holding arms
Implementation Method 2
apply a torque to at least one of the bearing pins for rotating about its longitudinal central axis
Data Source
AI summary
The application relates to a cable drum support for rotatably supporting a cable drum, including a cross beam, on which two holding arms are arranged, which are aligned parallel to one another, wherein each holding arm has a respective laterally protruding and rotatably supported bearing pin on a free end, wherein the bearing pins are arranged aligned with one another on the holding arms so as to face one another and aligned parallel to the cross beam, and wherein at least one of the holding arms is shiftably supported along the cross beam. The cable drum support further including at least one actuatable actuator, which is formed to shift at least the one of the holding arms and/or to apply a torque to at least one bearing pin for rotating about its longitudinal central axis.