Grinding Wheel Arbor Heat Dissipation

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Solution Overview

Problem

Conventional skate sharpening systems face challenges with heat dissipation in smaller grinding wheels, which can lead to overheating and defects in the skate blade surface finish, as they often rely on less effective thermally dissipative materials and structures compared to larger steel disks.

Innovation Solution

A skate sharpening system that incorporates a heat-conducting arbor with vanes on the driven shaft of the grinding wheel, providing convective cooling and airflow for enhanced heat dissipation, along with a compact grinding wheel design for improved mechanical tolerances and manufacturing efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a smaller grinding wheel is used, then manufacturing cost and ease of manufacture are improved, but heat dissipation ability deteriorates

Engineering Contradiction:

Improvemanufacturing costVSAvoidheat dissipation ability

Core Design Contradiction:

Ease of manufactureVSTemperature

Solution Approach 1:

The grinding wheel is constructed as a composite structure with a steel grinding ring mounted on a lighter hub, combining materials with different thermal properties to achieve both cost efficiency and heat management

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

A heat-conducting arbor is introduced as an intermediary component between the grinding wheel and the motor shaft, serving as a thermal bridge to conduct heat away from the grinding wheel during operation

Inventive Principle:

Principle #24Intermediary (Mediator)

2Device complexity

If a smaller grinding wheel is used, then device complexity is reduced, but heat dissipation ability deteriorates

Engineering Contradiction:

Improvewheel structure complexityVSAvoidheat dissipation ability

Core Design Contradiction:

Device complexityVSTemperature

Solution Approach 1:

The grinding wheel employs a composite design with a steel grinding ring on a lighter hub, simplifying the overall structure while managing heat through material selection

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The heat-conducting arbor acts as a thermal intermediary, providing a dedicated heat transfer path without complicating the grinding wheel structure itself

Inventive Principle:

Principle #24Intermediary (Mediator)

3Temperature

If conventional grinding wheel structure is used, then heat dissipation is improved, but manufacturing cost and mechanical tolerances deteriorate

Engineering Contradiction:

Improveheat dissipationVSAvoidmanufacturing cost

Core Design Contradiction:

TemperatureVSEase of manufacture

Solution Approach 1:

The composite structure of steel grinding ring on lighter hub achieves comparable heat dissipation to solid steel disks while reducing material cost and improving manufacturability

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The grinding wheel is segmented into separate components (grinding ring and hub) that can be manufactured independently and assembled, improving manufacturing efficiency while maintaining thermal performance

Inventive Principle:

Principle #1Segmentation

4Temperature

If conventional grinding wheel structure is used, then heat dissipation is improved, but device complexity increases

Engineering Contradiction:

Improveheat dissipationVSAvoidwheel structure

Core Design Contradiction:

TemperatureVSDevice complexity

Solution Approach 1:

Dividing the grinding wheel into modular segments (ring and hub) actually simplifies the overall structure compared to a solid disk, while enabling better heat management through the composite material arrangement

Inventive Principle:

Principle #1Segmentation

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 manages heat dissipation, preventing overheating and ensuring a precise, high-quality skate blade sharpening process while maintaining manufacturing cost-effectiveness.

Implementation Method 1

The arbor is of a heat-conducting material and has a heat-conducting mating with the grinding wheel when the grinding wheel is mounted on the rotating shaft

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

The arbor includes a set of vanes contributing to fan-like air flow about the arbor and grinding wheel for convective heat dissipation during the sharpening operation

Methodology Applied

Scientific EffectConvection: Convection

Data Source

PatentUS9475175B2Grinding wheel arbor

Publication Date: 2016.10.25 VELASA SPORTS

AI summary

A skate blade sharpening system includes a blade retention mechanism that holds a skate blade to be sharpened, and a rotating shaft configured to have a grinding wheel mounted on it, where the grinding wheel contacts the skate blade during sharpening. An arbor on the rotating shaft is of a heat-conducting material and has a heat-conducting mating with the grinding wheel when the grinding wheel is mounted on the rotating shaft. The arbor includes a set of vanes contributing to fan-like air flow about the arbor and grinding wheel for convective heat dissipation during the sharpening operation.