Double Drum Traction Winch Alternating Grooves Wire Compatibility
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Solution Overview
Problem
Existing double drum traction winches are limited in their ability to handle a wide range of loads due to their design, which requires specific wire types, leading to unnecessary wear and increased costs when used for both heavy and light loads, and the need for frequent winch replacements.
Innovation Solution
A double drum traction winch with alternating narrow and wide grooves on each drum, allowing it to accommodate two types of wires with different materials and tensile strengths, enabling flexible deployment and reducing wear and costs by using the most suitable wire for the task at hand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a heavy duty wire with large cross section is used for lifting heavy loads, then the lifting capacity is improved, but the wire quality deteriorates faster and running costs increase when used for light loads
Solution Approach 1:
The groove width is adapted to match the wire diameter for each loading condition. For heavy loads, wide grooves accommodate thick heavy duty wires. For light loads, narrow grooves guide thinner wires. This local adaptation of groove dimensions to wire dimensions reduces unnecessary wear on heavy duty wires during light operations while maintaining sufficient lifting capacity when needed.
2Strength
If a traction winch is provided with fixed groove dimensions for heavy duty wires, then heavy load lifting is enabled, but the winch cannot optimally handle light loads with different wire types
Solution Approach 1:
The groove configuration is made changeable through the dual-groove design. The winch can dynamically switch between narrow grooves for light loads and wide grooves for heavy loads. This dynamic adaptability allows the same winch to optimally handle different wire types and loading conditions without requiring fixed groove dimensions.
3Reliability
If replaceable winches are used for different load types, then wire wear is reduced, but time and effort for replacement increase and deck space is reduced
Solution Approach 1:
The traction winch is designed with dual groove configurations that enable it to perform multiple functions - handling both light loads with narrow grooves and heavy loads with wide grooves. This multi-functionality eliminates the need for replacing winches when switching between different loading conditions, thereby reducing replacement time and preserving deck space while still protecting wire lifetime through appropriate groove-wire matching.
4Strength
If heavy duty wires are used for all loads, then lifting capacity is sufficient for all conditions, but running costs increase significantly
Solution Approach 1:
The wire diameter parameter is changed based on the loading condition. The dual-groove winch enables using thinner, less expensive wires for light loads and reserve heavy duty wires only for heavy loads. This parameter change in wire selection, facilitated by the adaptable groove system, significantly reduces running costs while maintaining sufficient lifting capacity when required.
Data Source
AI summary
A double drum traction winch supporting a first and second rotatable drum is provided. The circumferential surface of each drum is provided with circumferential grooves perpendicular to the rotational axis of the drum. The grooves of each drum are subdivided in a first set of grooves for guiding a first wire and a second set of grooves for guiding a second wire. The grooves of the first set alternate with grooves of the second set such that the circumferential surface of each drum is provided with multiple grooves of the first group, each interpositioned between two grooves of the second group. Therefore the traction winch is capable of cooperating with a first wire in the first set of grooves or with a second wire in the second set of grooves, wherein both wires differ in type of material and/or cross section and/or maximum tensile strength.