Rib Peeling Tool Blade Holder Center of Gravity Alignment
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Solution Overview
Problem
Existing rib peeling devices experience high wear on the blade holder and significant vibrations, leading to premature fatigue and operator discomfort due to the center of gravity of the blade holder and blade being outside the line of action of the driving force, causing tilting moments.
Innovation Solution
Aligning the center of gravity of the blade holder and blade with the stationary line of action of the driving force to ensure only translational forces are applied, reducing wear and vibrations, and incorporating a design that minimizes tilting moments during operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the center of gravity of the blade holder and blade is positioned outside the line of action of the driving force, then the device can generate cutting force, but it causes high wear on the blade holder bearing and significant vibrations
Solution Approach 1:
The patent changes the positional parameter of the center of gravity of the blade holder and blade assembly, relocating it to align with the line of action of the driving force. This parameter change eliminates the tilting moment that causes wear and vibrations, while preserving the cutting force generation capability through the oscillating linear motion.
2Force
If the center of gravity of the blade holder and blade is positioned outside the line of action of the driving force, then cutting function is achieved, but it generates tilting moments that cause vibrations and operator fatigue
Solution Approach 1:
The patent modifies the positional parameter of the center of gravity to coincide with the line of action of the driving force. This eliminates the tilting moment transmission to the operator's hand-arm system, significantly reducing vibrations and operator fatigue while maintaining effective cutting function.
3Ease of manufacture
If the center of gravity of the blade holder and blade is positioned outside the line of action of the driving force, then the blade can be mounted on the blade holder, but it creates bearing loads in the transverse direction
Solution Approach 1:
The patent changes the positional parameter of the center of gravity to align with the line of action of the driving force. This eliminates the transverse bearing load that would otherwise be generated by the tilting moment, while the blade mounting capability is maintained through the oscillating linear motion mechanism.
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 solution effectively reduces wear and vibrations, enhancing the service life of the device and reducing operator fatigue by ensuring the blade holder is subjected only to translational forces, thereby improving handling efficiency.
Implementation Method 1
a linear oscillating drive (10, 12, 14) which exerts a driving force on the piston rod (14) with a line of action (24) which is stationary in relation to the rib peeling device (10)
Implementation Method 2
The direction of the force reverses periodically, resulting in an oscillating translational movement
Data Source
Figure 1
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AI summary
A rib peeling device is presented, featuring a linear oscillating drive with a piston rod movably guided within the device along a direction fixed relative to the device. The drive exerts a force on the piston rod along a line of action fixed relative to the device, the direction of which periodically reverses. The device comprises a blade and a blade holder having a proximal end and a distal end. The proximal end of the blade holder is detachably connected to the piston rod, and the distal end is detachably connected to the blade. The rib peeling device is characterized by the fact that the center of gravity of the blade holder and blade assembly lies in line with the fixed line of action relative to the device.