Rope Winch Locking Bolt with Arched Cuttings
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Solution Overview
Problem
Existing lifeboat launching systems using rope winches do not allow for the examination of potential winch failures until the winch is unlocked or the lifeboat is lowered into the water, posing safety concerns and limitations in testing and maintenance.
Innovation Solution
A device that enables the engagement of the rope winch lock while the lifeboat is being pulled up, allowing for the examination and repair of winch failures without lowering the lifeboat into the water, featuring a wheel with arched cuttings and locking bolt mechanism that secures the rope drum, preventing rotational movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the rope winch lock is engaged only after the lifeboat is lowered into the water, then the lifeboat launching system can operate normally, but potential winch failures cannot be examined until after the lifeboat is in the water
Solution Approach 1:
The locking device is designed to enable engagement of the rope winch lock at any position during the lifeboat operation cycle, including during the pulling-up phase. This preliminary capability allows examination and repair of winch failures to be performed before the lifeboat is lowered into the water, eliminating the need for water-based repairs and improving maintenance safety and efficiency
2Ease of repair
If the rope winch lock is engaged during the pulling-up phase, then winch failures can be examined and repaired without lowering the lifeboat into the water, but the locking mechanism must accommodate dynamic positioning requirements
Solution Approach 1:
The locking device incorporates a wheel with arched cuttings that align with lugs at different positions on the drum. This dynamic design allows the locking bolt to engage at various rotational positions of the drum, enabling lock engagement during the pulling-up phase while maintaining a relatively simple mechanical structure without requiring complex positioning systems
Solution Approach 2:
The locking mechanism is divided into separate components: a wheel with arched cuttings, fixed lugs with holes, and a locking bolt with nut. This segmentation allows each component to perform its specific function independently while working together to achieve the overall locking objective, simplifying the design and maintenance of the complex locking mechanism
Data Source
AI summary
A method for locking the rope winch which is characterized by the fact that the locking bolt is inserted when the rope drum of the rope winch is stopped, first, through one of two holes in the first lug, then through one of the arched cuttings on the wheel of the rope drum of the rope winch, and finally through one of two holes in the second lug, Then the locking bolt is secured in position with a nut.