Cable Drum Handling Apparatus with Hydraulic Clamp
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing devices for transporting and handling large cable drums are unsafe and inefficient due to the need for manual insertion of heavy mandrels, reliance on hydraulic systems that can leak or require frequent maintenance, and the heavy weight of banding carts, leading to potential injuries and operational disruptions.
Innovation Solution
A trailer or truck-mounted apparatus with hydraulic-driven mechanical arms that clamp onto the drum for mandrel-less operation, a gravity drive system with an adjustable drive wheel for rotating the drum, and a load-sensing hydraulic system, along with a tilting bracket for easy mounting of the banding cart, enhancing safety and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mandrel is used to insert through the drum center for mounting, then the drum can be securely mounted on the truck, but workers face injury risk and the mandrel can be damaged or lost requiring repair or replacement
Solution Approach 1:
The patent removes the mandrel component entirely from the system. Instead of inserting a mandrel through the drum center, the invention uses a clamp assembly that grasps the drum externally at its ends, eliminating the harmful effects of mandrel insertion while maintaining secure mounting capability
Solution Approach 2:
The patent introduces a clamp assembly as an intermediary device between the drum and the truck bed. This clamp assembly uses jaws that grasp the drum ends and a pivot arm mechanism to secure the drum, serving as a safe intermediary that avoids direct worker contact with heavy mandrels
2Ease of operation
If hydraulic drive gear or tire is used to rotate the drum, then cable spooling can be achieved, but the system requires significant external pressure and can bleed-off causing disengagement
Solution Approach 1:
The patent uses a dynamically adjustable clamp assembly with pivot arms that can adapt to different drum sizes and weights. The clamp mechanism maintains optimal engagement force through its mechanical advantage system, allowing reliable operation across varying conditions without bleeding off or disengagement
Solution Approach 2:
The patent employs a hydraulic cylinder to actuate the clamp assembly jaws and pivot arms. This hydraulic system provides controlled, reliable force application to secure the drum and maintain engagement during cable spooling operations, eliminating the pressure loss issues of previous hydraulic tire systems
3Power
If direct gear drive is used to rotate the drum, then driving force can be transmitted, but the system becomes heavy and requires frequent greasing and replacement
Solution Approach 1:
The patent replaces complex direct gear drive mechanisms with a simpler hydraulic-pivot arm clamp system. The hydraulic cylinder provides the necessary driving force through controlled piston movement, which translates to drum rotation through the pivot arm mechanism, eliminating heavy gears and their associated maintenance requirements
Solution Approach 2:
The patent uses hydraulic actuation to replace mechanical gear drives. The hydraulic system transmits power efficiently through fluid pressure to the clamp assembly, which then rotates the drum through its pivot mechanism, providing sufficient driving force with reduced weight and maintenance compared to direct gear drives
4Adaptability or versatility
If banding cart is mounted on the spool trailer, then banding equipment is readily available, but the cart and banding are heavy making loading and unloading grueling and dangerous
Solution Approach 1:
The patent integrates the banding cart mounting system directly into the trailer structure. The tilt bracket mechanism is built-in to the trailer bed, allowing the banding cart to be tilted and secured as part of the overall loading process, making the heavy cart manageable through mechanical advantage rather than manual lifting
Solution Approach 2:
The patent uses a dynamic tilt bracket mechanism that allows the banding cart to be tilted to different angles during loading. This dynamic adjustment capability enables workers to use mechanical advantage and gravity to load the heavy cart safely, rather than requiring straight-up manual lifting
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
The apparatus allows for safe and efficient handling of large cable drums by eliminating the need for manual mandrel insertion, reducing wear on hydraulic systems, and simplifying the loading of banding carts, enabling a single worker to manage significant cable drums with reduced fuel consumption and wear on the engine.
Implementation Method 1
hydraulic-driven mechanical arms that clamp onto the drum
Implementation Method 2
a gravity drive system with an adjustable drive wheel for rotating the drum
Data Source
AI summary
A cable drum transportation and handling apparatus for mounting, transporting and handling large cable drums includes a supporting structure, which supporting structure may be mounted on a truck or trailer. The apparatus includes stabilizers mounted to the supporting structure, a hydraulics control system and an operator station, a gravity drive having a drive wheel tire for turning the drum to spool cable in or out, and a hydraulic drive system for the gravity drive. An adjustable mechanism ensures firm connection between the tire and a cable drum, when a drum is mounted on the apparatus. A lever arm or bolt pattern puts more or less tension on the gravity drive, for engagement, by moving the drive up and down. Opposing hydraulically-operated lift arms pivotally mounted on an upper part of the supporting structure may be pivoted outwardly and rearwardly. The lift arms laterally close to grasp the drum. Mounts on the end of each arm have a center pin that inserts into the center axis of the drum and a pair of engagement pins that are inserted between the spokes of the drum to assist in holding the drum in place. The apparatus may also include a mounting bracket for a banding cart to hold banding for the cabling.