Ship Garage Tender Translation System With Corrosion-Resistant Slides
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Solution Overview
Problem
Existing translation systems for outboard and inboard tenders in ship garages do not ensure safe and reliable operation, lack manual intervention capabilities, and are susceptible to wear and corrosion from marine salt.
Innovation Solution
A translation system with oscillating roller carriers and trapezoidal worm screw mechanisms ensures safe operation, allows manual intervention, and uses anodized aluminum with protective dowel connections to prevent corrosion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If automated translation control means are used, then productivity is improved, but reliability deteriorates due to lack of manual intervention capability
Solution Approach 1:
The system allows dynamic switching between automated control mode and manual intervention mode. The translation control means can operate automatically under normal conditions but can be manually overridden when failures occur, providing operational flexibility that resolves the contradiction between automation efficiency and reliability through manual backup.
2Ease of manufacture
If standard connection means are used, then ease of manufacture is improved, but durability deteriorates due to wear and corrosion from marine salt
Solution Approach 1:
The connection means employs composite construction combining stainless steel elements with aluminum components. The stainless steel provides corrosion resistance against marine salt while the aluminum provides lightweight structural support, achieving both durability in marine environments and manufacturability through standard fabrication processes.
Solution Approach 2:
The aluminum elements undergo anodizing treatment that changes their surface properties, creating a protective oxide layer that significantly increases resistance to corrosion and wear from marine salt exposure, while maintaining the base material's manufacturability and structural properties.
3Weight of moving object
If aluminum materials are used, then weight is reduced, but durability deteriorates due to susceptibility to corrosion from marine salt
Solution Approach 1:
The aluminum materials undergo anodizing treatment that fundamentally changes their surface properties by creating a thick, porous oxide layer that is highly resistant to corrosion from marine salt. This surface modification maintains the lightweight advantage of aluminum while eliminating its primary weakness of corrosion susceptibility.
Solution Approach 2:
The system uses composite material construction combining anodized aluminum with stainless steel connection elements. The aluminum provides lightweight structural components while the stainless steel provides corrosion-resistant connection points, achieving both weight reduction and enhanced durability through material complementarity.
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 system provides safe, reliable, and corrosion-resistant operation with manual override capabilities, ensuring consistent performance and durability in marine environments.
Implementation Method 1
Said at least two side members 12.1 comprise a respective extruded aluminum profile with hard anodizing treatment
Implementation Method 2
first trapezoidal worm screw means 13.3, selectively controlled in rotation in one or in the other direction by means of said first motor means 13.1 and said first reduction gear means 13.2
Implementation Method 3
first lead screw means 13.4 complementary to said first trapezoidal screw means 13.3
Implementation Method 4
guide means of a first slide include recirculating ball bearing
Data Source
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AI summary
Translation system (10) for an outboard and inboard tender with respect to a garage of a ship, wherein the garage comprises a floor, a ceiling and a door, provided for the passage of said tender, wherein said system (10) comprises: first stationary support and guide means (11), comprising fixed support means (11.1), fixed with respect to said ceiling, and first guide means (11.2), wherein: said fixed support means (11.1) comprise at least two support plates (11.10), fixed and opposite each other, arranged in respective planes parallel to the vertical median plane of said door and configured to support, respectively, said first guide means (11.2) in a substantially symmetrical arrangement with respect to the vertical median plane of said door; at least one first slide (12), configured to slide with respect to said first guide means (11.2) of said first support and guide means (11), wherein: said at least one first slide (12) comprises at least two side members (12.1) guided in a sliding manner with respect to said first guide means (11.2) in a direction substantially parallel to said vertical median plane of said door, parallel to said floor; first translation control means (13) of said at least one first slide (12) with respect to said first guide means (11.2), between a rest position, wherein said at least one first slide (12) is contained at the area of said floor, and a working position, wherein said at least one first slide (12) is partially extended beyond said door; at least one second slide (14), configured to slide along said at least two side members (12.1) of said at least one first slide (12), between a rest position, wherein said at least one second slide (14) is arranged at the area of said floor, and a working position, wherein said at least one second slide (14) is arranged at least in part beyond said door, wherein: said at least one second slide (14) supports lifting and lowering means (15) of a tender with respect to said floor, configured as electric hoist; second translation control means (16) of said at least one second slide (14) along said at least two side members (12.1), between said rest position and said working position, characterized in that said first guide means (11.2) comprise: a plurality of rollers (17) which are mounted idle on respective axes orthogonal to said vertical median plane of said door and which are supported by respective roller carrier means (17.1), connected to a respective of said at least two support plates (11.10), wherein said roller carrier means (17.1) are connected to the respective support plate (11.10) in a manner oscillating around a respective axis orthogonal to said vertical median plane of said door.