Rectifier Handling Trolley With Inclined Roller Support
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Solution Overview
Problem
Handling of axial turbine engine compressor rectifiers is hazardous and ergonomically challenging due to their weight and size, requiring complex logistics and posing risks of accidents and damage during assembly, maintenance, and storage operations.
Innovation Solution
A trolley system that allows the rectifier to be inclined between 5 and 30 degrees, supported by lower and upper rollers, enabling ergonomic and stable positioning, with adjustable angles and manual or automated pivoting, reducing the need for overhead cranes and enhancing safety and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If overhead crane is used to handle rectifier, then rectifier can be suspended and moved, but operator safety deteriorates and risk of damage increases
Solution Approach 1:
A trolley device is introduced as an intermediary between the overhead crane and the rectifier. The trolley includes a support structure with rollers that contact the rectifier, allowing it to be positioned at an inclined angle. This intermediary device enables safe transfer and stable positioning of the heavy rectifier, reducing direct handling risks for operators while maintaining mobility through crane integration.
2Ease of operation
If rectifier is positioned vertically during handling, then it can be easily suspended by overhead crane, but operator ergonomics deteriorates
Solution Approach 1:
The trolley's support structure is designed to position the rectifier at an adjustable inclined angle (5-30 degrees from vertical) rather than strictly vertical. This dynamic positioning capability improves operator ergonomics during assembly and maintenance operations while the angle adjustment mechanism remains relatively simple, using basic mechanical components like rollers and support beams.
3Productivity
If overhead crane is used for rectifier handling between different workstations, then rectifier can be transported, but logistics complexity increases
Solution Approach 1:
The trolley device serves multiple functions: it acts as a support structure during stationary operations (assembly, maintenance, inspection), provides a stable working platform at inclined angles, and enables easy transfer between workstations via the overhead crane. This multi-functionality consolidates several handling operations into a single device, reducing overall logistics complexity while improving handling efficiency.
Data Source
AI summary
The invention relates to a method for handling a rectifier of a turbojet of an aircraft, the rectifier having an axis defining the asymmetry thereof, said method comprising a step of placing the rectifier on the rollers of a supporting structure, the structure and the rollers thereof being arranged such that the axis of the rectifier is inclined at a non-null acute angle in relation to the horizontal, and a step of controlling, maintaining, assembling, handling, storing, deburring and/or cleaning the rectifier, during which the rectifier is pivoted about the axis thereof. The invention also relates to a trolley for handling a rectifier for an axial turbojet, said trolley comprising at least two of the lower rollers that have axes inclined in relation to the horizontal of said angle and at least one upper roller, the axis of which is inclined in relation to the vertical of said angle.