Tripod Jack Inner Cylinder Lifting Tool for Upright Removal
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Solution Overview
Problem
The existing methods for removing the inner cylinder of a 60-ton aircraft tripod jack require multiple personnel and complex procedures, including placing the jack on its side, which is inefficient and unsafe.
Innovation Solution
A tripod jack cylinder removal tool featuring a lifting eyebolt attached through an up flange and lock nut, secured to a pipe with a bolt that threads into the inner cylinder base bolt hole, allowing for single-person operation and safe removal of the inner cylinder.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the traditional method of removing the inner cylinder is used, then the jack can be disassembled, but it requires four personnel and complex procedures including placing the jack on its side
Solution Approach 1:
The removal tool is divided into distinct functional segments: a pipe section that fits into the jack, flanges with apertures for attachment points, a lifting eyebolt for hoist connection, and a bolt for securing to the inner cylinder. This segmentation allows each component to perform its specific function independently, simplifying the overall removal operation while maintaining structural integrity.
Solution Approach 2:
The removal tool acts as an intermediary device between the hoist system and the inner cylinder. By introducing this intermediate tool with flanges and attachment points, the direct complex interaction between personnel and the jack is replaced with a standardized interface, reducing operational complexity and improving ease of operation.
2Reliability
If the traditional method is used, then the inner cylinder can be removed, but it requires multiple personnel and creates safety risks
Solution Approach 1:
The removal tool is pre-assembled with the lifting eyebolt attached through the up flange aperture to the lock nut, and the bolt positioned to thread into the inner cylinder base bolt hole. This preliminary preparation ensures that when the tool is inserted into the jack, it is ready for immediate secure attachment and lifting, improving both safety through proper pre-positioning and productivity by eliminating assembly steps during the actual removal operation.
Solution Approach 2:
The removal tool is designed to be self-securing through its threaded bolt that engages with the inner cylinder base bolt hole. Once inserted and the hoist is attached to the eyebolt, the tool automatically secures itself to the cylinder without requiring additional personnel to manually fasten components during the lifting operation, thereby improving safety by reducing human exposure to hazardous areas while maintaining efficient single-person operation.
3Ease of operation
If the jack is placed on its side for access, then components can be removed, but the procedure becomes more complex and time-consuming
Solution Approach 1:
The removal tool utilizes the vertical dimension by incorporating a lifting eyebolt that connects to an overhead hoist. This allows the inner cylinder to be extracted vertically upward from the jack while it remains in its normal upright position, eliminating the need to place the jack on its side. This dimensional approach to access maintains proper jack orientation while enabling efficient component removal, reducing both operational complexity and time loss.
Data Source
AI summary
A tripod jack cylinder removal tool including a lifting eyebolt attached through an up flange and further through and up flange aperture to a lock nut. The flange is secured to a pipe at a pipe top end, the pipe further having a bottom end wherein a down flange having a down flange aperture is attached to the pipe and a bolt having threads protrudes through a down flange aperture.