High-Pressure Water Jet Feed Line Stabilization via Universal Joint
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Solution Overview
Problem
High-pressure water jet cutting systems experience component failures due to extreme stresses and vibrations caused by rapid movement of cutting heads and carriages, leading to feed line failures despite existing stabilization techniques.
Innovation Solution
A support system featuring a precise extendable universal joint and pivotal connections to reduce vibrations, combined with polymer dampeners along the feed line to absorb remaining vibrations, ensuring the stability of high-pressure feed lines during motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If polymer dampeners are used to secure the stabilization structure to the cutting containment housing and cutting head, then sufficient range and freedom of motion is provided, but vibration still exists at extremely high speeds which results in feed line failures over time
Solution Approach 1:
The support rod acts as an intermediary stabilization element between the cutting head and the containment housing. It provides a rigid support structure that directly bridges the gap between moving and stationary components, eliminating the need for flexible polymer dampeners that cannot adequately suppress vibration at high speeds.
Solution Approach 2:
The support system is segmented into distinct functional components: the support rod for structural stability, the universal joint for motion freedom, and the pivotal point for rotation. This segmentation allows each component to optimize its specific function while working together to solve the overall contradiction between motion range and vibration suppression.
2Productivity
If the cutting head moves at extreme speeds to access points throughout the two-dimensional plane, then productivity is improved, but tremendous stresses are caused on the high-pressure feed line resulting in component failures
Solution Approach 1:
The support rod serves as a mediator that isolates the high-pressure feed line from the dynamic stresses generated by rapid cutting head movements. By providing a stable support structure, it protects the feed line from vibration and stress transmission, enabling high-speed operation without compromising feed line reliability.
3Reliability
If coils are provided in the feed line tubing at movement points and a support structure is provided between the cutting containment housing and cutting head, then stress and wear on the high-pressure feed line is diminished, but complications occur at the connection points of the support structure and where the feed line tubing contacts the support structure
Solution Approach 1:
The universal joint provides multi-functionality by simultaneously accommodating linear movement, rotational movement, and providing a stable mounting point for the support rod. This eliminates the need for separate connection mechanisms at multiple points, reducing overall system complexity while maintaining feed line stress resistance.
Solution Approach 2:
The support system incorporates dynamic elements including the universal joint that allows motion in multiple directions and the pivotal point that enables rotation. These dynamic features allow the support structure to adapt to the moving cutting head while maintaining stability, avoiding the complications of rigid fixed connections.
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 effectively limits vibrations and reduces metal fatigue in high-pressure feed lines, enhancing their durability and preventing catastrophic failures during high-speed operations.
Implementation Method 1
a precise, extendable universal joint that permits free movement around two axes, and that greatly reduces the level of vibration permitted in the rod after a movement motion
Implementation Method 2
The remaining vibration in the support rod and vibration in the feed line is dampened by securing the feel line adjacent to the support rod connection ends, and providing a dampener span tensioned between distal points along the feed line coil
Data Source
AI summary
A support system (10) for stabilizing a high-pressure feed line (15) in a high-speed water jet food portioner, comprising a rigid span assembly (12) connected at one end to an extendable universal joint (40) that provides rotational motion around two axes (36,37) as well as linear freedom along a third axis (38), and at the other end to a rod-end bearing (17) that permits motion about two axes at a fixed attachment point. The extendable universal joint (40) and the rod-end bearing (17) are each anchored to a fixed point, one on a portioner housing and the other on a cutting carriage such that the rigid span assembly (12) is allowed freedom at one end to move with the rapid and dramatically changing motion of the cutting carriage in order to provide support to the high-pressure feed line (15) mounted thereon, with minimal vibration.