Bogie Beam Axle Coupling Eliminates Intermediate Fasteners
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Solution Overview
Problem
Conventional landing gear bogie beam assemblies incur unnecessary weight, cost, and part count due to the use of axle plugs and axle retention spools for coupling axles to the bogie beam.
Innovation Solution
A bogie beam assembly with an elongated main body and transverse sleeve portions that directly secure the axle using retention bolts, eliminating the need for intermediate components like axle plugs and spools, thereby transferring axial loads directly from the axle to the bogie beam.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If axle plugs and axle retention spools are used to couple the axle to the bogie beam, then the coupling is secure and reliable, but the weight, cost, and part count increase
Solution Approach 1:
The patent removes the axle plug and axle retention spool from the coupling system, eliminating these intermediate components while maintaining secure axle-to-bogie beam coupling through a simplified direct connection method
Solution Approach 2:
The patent combines the functions of the axle plug and axle retention spool into a single integrated coupling mechanism, reducing part count while achieving the same secure coupling function
2Reliability
If axle plugs and axle retention spools are used to couple the axle to the bogie beam, then the coupling is secure and reliable, but the part count increases
Solution Approach 1:
The patent removes the axle plug and axle retention spool from the coupling system, eliminating these intermediate components while maintaining secure axle-to-bogie beam coupling through a simplified direct connection method
Solution Approach 2:
The patent combines the functions of the axle plug and axle retention spool into a single integrated coupling mechanism, reducing part count while achieving the same secure coupling function
Data Source
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AI summary
A bogie beam assembly 6, 6' is provided. The bogie beam assembly 6, 6' comprises a bogie beam 8, 8' having an elongated main body portion 14, 14' having an end portion disposed between a first sleeve portion 18, 18' and a second sleeve portion 20, 20'. The first sleeve portion 18, 18' and the opposing second sleeve portion 20, 20' are transverse to the elongated main body portion 14, 14'. An axle 10, 10' extends through the first sleeve portion 18, 18', the end portion, and the second sleeve portion 20, 20'. At least one retention bolt 12, 12a, 12b is secured through at least one of the first sleeve portion 18, 18' and the axle 10, 10' and the second sleeve portion 20, 20' and the axle 10, 10'. A landing gear and a method for coupling an axle 10, 10' to a bogie beam 8, 8' in a landing gear are also provided.