Integrated Elastoplastic Damping Ring for False Twister Spindle
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Solution Overview
Problem
The existing false twisting unit spindles have a complicated design and require significant time and effort for assembly due to independent rubber and plastic rings used for damping, necessitating special equipment for assembling the rubber rings in ring-shaped grooves.
Innovation Solution
A false twisting unit spindle with a damping ring surrounding the core shaft, featuring an annular groove and elastoplastic material for simultaneous axial and radial damping, simplifying the construction and assembly process by integrating the damping function into a single component.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate rubber rings and plastic rings are used for damping in the bearing, then damping performance in radial and axial directions is improved, but device complexity and assembly difficulty increase significantly
Solution Approach 1:
The patent combines separate rubber rings (for radial damping) and plastic rings (for axial damping) into a single integrated damping ring with elastoplastic properties. This damping ring simultaneously provides damping in both radial and axial directions, reducing the number of components and simplifying the bearing structure while maintaining comprehensive damping performance.
Solution Approach 2:
The elastoplastic damping ring serves multiple functions simultaneously: it provides radial damping through its elastic properties, axial damping through its plastic properties, and acts as a structural component of the bearing. This multi-functionality eliminates the need for separate specialized components for each damping direction.
2Reliability
If separate rubber rings and plastic rings are used for damping, then damping performance is improved, but assembly time and labor costs increase significantly
Solution Approach 1:
By merging the functions of separate rubber and plastic rings into a single elastoplastic damping ring, the assembly process is simplified from installing multiple separate components to installing one integrated component, significantly reducing assembly time and labor requirements.
Solution Approach 2:
The damping ring is designed with an integrated structure that segments the damping functions into different zones within a single component, allowing comprehensive damping performance to be achieved through one assembly operation rather than multiple separate installations.
3Manufacturing precision
If specialized equipment is used to assemble rubber rings in ring-shaped grooves, then assembly precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent eliminates the need for specialized assembly equipment by integrating the damping function into a single elastoplastic ring that can be installed using conventional assembly methods. The elastoplastic material properties allow the ring to be mounted in standard grooves without requiring specialized tools or equipment.
Solution Approach 2:
The use of elastoplastic material with specific mechanical properties allows the damping ring to be installed using standard assembly procedures. The material's elastic and plastic characteristics enable it to deform during installation and maintain position without requiring specialized equipment, while still providing effective damping.
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 provides a simpler and more efficient assembly process while maintaining effective damping in both axial and radial directions, reducing vibration amplitudes and enhancing support rigidity with an O-shaped arrangement of raceways.
Implementation Method 1
A damping ring 24, surrounding the core shaft 10, is mounted on the inner circumferential surface between the outer bearing ring 21 and the second rolling element group 23
Implementation Method 2
The damping ring 24 has an annular groove 13 open towards the core shaft 10. A first inner ring 25, also surrounding the core shaft 10, is mounted in this groove
Data Source
Figure 1
Figure 2
AI summary
A false twister spindle and a false twister. The false twister spindle comprises a core shaft, a bearing surrounding the core shaft, a transmission piece located on the core shaft and separated from the bearing along an axial direction of the core shaft. The bearing comprises an outer ring of the bearing, first-group rolling elements and second-group rolling elements located between the outer ring of the bearing and the core shaft and separated from each other along the axial direction of the core shaft. The first-group rolling elements are close to the transmission piece. The second-group rolling elements are away from the transmission piece. A damping ring surrounding the core shaft is installed on an inner circumference between the outer ring of the bearing and the second-group rolling elements. The damping ring has a ring-shaped groove having an opening toward the core shaft, and the second-group rolling elements are located between the ring-shaped groove and the core shaft. The damping ring has a simple design, and can implement damping functions along an axial direction and a radical direction of the core shaft.