Cable Drum Rubber-Tire Drive for High-Force Cable Extraction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional cable reeling devices struggle to extract power cables from underground conduits when a large extraction force is required, as the drive motor's power is insufficient to rotate the cable drum effectively.
Innovation Solution
A cable reeling device equipped with a turntable, rotating arms, drum support members, and rubber tires with elastic outer circumferential portions that directly transmit rotational force to the cable drum, allowing for intimate contact and reliable rotation, along with a rubber tire fixing shaft and driving mechanism for forward and reverse rotation, and a booster device to apply rotational force from the side face of the cable drum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a drive motor is used to rotate the reel drum, then the cable reeling device can operate automatically, but the driving force is insufficient when large extraction force is required
Solution Approach 1:
The patent introduces a cable car as an intermediary carrier that physically transmits the pulling force from the winch vehicle to the power cable. The cable car acts as a mechanical mediator, allowing the winch vehicle to apply extraction force without relying solely on the drive motor's direct rotational force on the reel drum.
Solution Approach 2:
The patent replaces the drive motor's direct mechanical rotation of the reel drum with an alternative mechanical system involving the cable car and winch vehicle. Instead of the drive motor directly providing extraction force through reel drum rotation, the system uses the winch vehicle's winding mechanism to pull the cable car, which in turn extracts the power cable from the conduit.
2Device complexity
If the reel drum is rotated using drive motor power, then the device structure can be simplified, but smooth rotation cannot be achieved when large extraction force is required
Solution Approach 1:
The cable car serves as a mediator between the winch vehicle and the power cable, enabling smooth extraction operation. The cable car's design with the cable receiving portion and engagement structure ensures reliable transmission of force, allowing smooth rotation and operation even under large extraction force conditions.
3Use of energy by moving object
If the cable drum is rotated directly by drive motor, then energy transmission is direct, but the extraction operation fails when large force is needed
Solution Approach 1:
The patent substitutes the direct energy transmission path from drive motor to reel drum with an alternative mechanical system. The winch vehicle's winding mechanism provides the primary extraction force, which is transmitted through the cable car to the power cable, replacing the insufficient direct motor-driven reel drum rotation.
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
Enables smooth rotation of the cable drum and efficient power cable extraction even when a large extraction force is needed, ensuring reliable operation and effective cable reeling and unreeling.
Implementation Method 1
rubber tires with outer circumferential portions having a circular shape thereof being made of elastic rubber, for rotating the cable drum by rotating with the outer circumferential portions being in intimate contact with outer faces of the cable drum
Data Source
AI summary
In a conventional method for extracting a cable, a power cable is reeled in by rotating a reel drum using a drive motor, and therefore there are cases where a power cable in a conduit cannot be extracted with the driving force of the drive motor when a large extraction force is required to extract the power cable from the conduit. The present invention is capable of directly transmitting, to a cable drum (5), a rotational force of rubber tires (9) whose outer circumferential portions are made of elastic rubber, by rotating the rubber tires (9) while bringing the rubber tires (9) into intimate contact with outer faces of the cable drum (5), and is capable of reliably rotating the cable drum (5).