Grinding Wheel Plastic Projections Vibration Damping
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Solution Overview
Problem
Conventional grinding wheels experience vibrations during operation, which are transmitted to the grinding machine and user, leading to unsteady running and uneven grinding performance.
Innovation Solution
The grinding wheel features projections made of sprayed-on plastic, arranged radially symmetrically and at an angle to the radius, with fastening areas also made of sprayed-on plastic, forming a one-piece layer to absorb and distribute vibrations effectively, reducing stiffness and enhancing damping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If metal ribs or base material ribs are used to stiffen the grinding wheel, then structural strength is improved, but vibration transmission to the grinding machine and user increases
Solution Approach 1:
The patent applies composite materials by combining a fiber-reinforced plastic matrix with discrete vibration-damping elements. The matrix provides structural strength while the specialized damping elements (made of viscoelastic or rubber-like materials) are embedded within it to specifically address vibration transmission. This composite approach allows simultaneous achievement of structural integrity and vibration reduction.
Solution Approach 2:
The patent changes the material parameters of the damping elements by selecting materials with specific viscoelastic properties and damping characteristics. By adjusting the material composition, viscosity, and elastic modulus of the damping elements, the patent optimizes the balance between structural strength and vibration damping capacity, transforming the physical properties to resolve the contradiction.
2Ease of manufacture
If conventional pressing methods are used to manufacture grinding wheels, then manufacturing simplicity is maintained, but vibration behavior during operation worsens
Solution Approach 1:
The patent applies preliminary action by pre-forming the damping elements with specific geometric configurations and material properties before embedding them in the grinding wheel matrix. The damping elements are prepared in advance with optimized shapes and material compositions that will effectively counteract vibrations during operation, allowing the final assembly to inherit these pre-optimized vibration-damping characteristics.
Solution Approach 2:
The patent creates a composite structure where fiber-reinforced plastic material is combined with specialized vibration-damping materials. This composite approach maintains manufacturing feasibility through established composite processing techniques while introducing new material properties that significantly improve vibration behavior during grinding wheel operation.
3Stability of the object's composition
If projections are made of metal or base material, then structural integrity is improved, but vibration damping capability worsens
Solution Approach 1:
The patent applies local quality by creating distinct regions with different material properties within the grinding wheel structure. The matrix material provides structural integrity in one region, while embedded damping elements with viscoelastic or rubber-like properties provide vibration damping in specific localized areas. This spatial differentiation of material qualities allows simultaneous achievement of structural stability and vibration damping without compromising either function.
Solution Approach 2:
The patent uses composite materials to combine the structural integrity-providing matrix with vibration-damping elements. The fiber-reinforced plastic matrix maintains structural composition stability, while the embedded viscoelastic or rubber-like damping materials provide the necessary vibration damping capability, resolving the contradiction between structural integrity and vibration 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
This configuration significantly reduces vibration transmission, providing a quieter and more stable grinding operation with improved grip on the grinding machine, while eliminating the need for metal eyelets and simplifying manufacturing.
Implementation Method 1
vibrations are absorbed by the plastic projections or ribs
Implementation Method 2
at least one fastening area consists of sprayed-on plastic
Implementation Method 3
vibrations are distributed particularly effectively over the entire grinding wheel and are reduced by the damping effect of the plastic layer
Data Source
Figure 1~5
Figure 6~7
AI summary
The grinding wheel (1) has an opening in a region of a rotary axis (A), and fastening regions surrounding the opening in both sides of the grinding wheel. The fastening regions extend in a radial direction such that the grinding wheel is placed between wheel flanges of a grinding machine. A region (7) comprising projections (8) is attached to the fastening regions in the radial direction, where the fastening regions and the projections are composed of plastic. Thee projections are arranged around the rotary axis in a radially symmetric manner. An independent claim is also included for a method for manufacturing a grinding wheel.