Sensorized Bearing Shield for Compact Marble Cutter Cooling

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Solution Overview

Problem

Bearing units in the marble cutting industry face challenges due to their restricted axial dimensions, leading to complex or costly solutions for maintaining high performance while managing heat dissipation effectively.

Innovation Solution

A bearing unit with a sensorized shield, specifically a temperature sensor integrated into the sealing device's shield, allows for real-time temperature monitoring, enabling optimized cooling water flow to manage heat effectively without excessive water usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If bearing units are assembled in compact packs with restricted axial dimensions, then space utilization is improved, but heat dissipation capability deteriorates

Engineering Contradiction:
Improveaxial dimensionVSAvoidheat dissipation
Core Design Contradiction:
Volume of moving objectVSTemperature

Solution Approach 1:

The temperature sensor is integrated into the sealing shield, combining the sealing function with temperature monitoring function in a single component. This allows heat monitoring without adding separate monitoring components that would increase axial dimension.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The sensorized shield provides real-time temperature feedback from the bearing unit, enabling monitoring of heat generation in the compact pack configuration. This feedback mechanism allows for thermal management decisions without requiring additional space for separate sensors.

Inventive Principle:
Principle #23Feedback

2Temperature

If cooling water volume is increased to manage heat, then temperature control is improved, but water consumption increases

Engineering Contradiction:
Improvetemperature controlVSAvoidwater consumption
Core Design Contradiction:
TemperatureVSLoss of substance

Solution Approach 1:

The temperature sensor in the shield provides real-time feedback on actual bearing unit temperature, enabling precise control of cooling water flow. This allows operators to apply cooling water only when and to the extent actually needed, rather than using excessive water continuously.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The sensorized shield enables the bearing unit to self-monitor its thermal state, providing information that allows the cooling system to respond precisely to actual thermal conditions, optimizing water usage based on real needs.

Inventive Principle:
Principle #25Self-service

3Measurement precision

If sensor is integrated into the shield, then temperature monitoring capability is improved, but shield complexity increases

Engineering Contradiction:
Improvetemperature monitoringVSAvoidshield structure
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The temperature sensor is integrated directly into the sealing shield structure, merging the sealing function with temperature monitoring in one component. This avoids the complexity of separate mounting brackets, additional fastening elements, or separate sensor housings that would increase shield complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The shield is designed to perform multiple functions: sealing the bearing unit and simultaneously housing the temperature sensor. This multi-functionality reduces the need for separate components and simplifies the overall structure despite adding monitoring capability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 sensorized bearing unit effectively monitors and manages temperature, optimizing cooling water usage and improving machine performance by allowing for real-time adjustments to water flow and temperature, thus reducing operational costs and environmental impact.

Implementation Method 1

a sensorized shield, specifically a temperature sensor integrated into the sealing device's shield, allows for real-time temperature monitoring

Methodology Applied
Scientific EffectTemperature sensing: Thermocouple

Data Source

PatentUS12222007B2Bearing unit with sensorized shield
Publication Date: 2025.02.11 AB SKF SKF PATENT DEPARTMENT
  • US12222007B2 patent drawing
  • US12222007B2 patent drawing
  • US12222007B2 patent drawing

AI summary

A bearing unit for a marble cutting machine has a radially outer ring, rotatable with respect to an axis of rotation (X) and is provided with a radially outer flange portion. Additionally, the bearing unit is provided with a stationary radially inner ring with a through hole in which the ratio between a dimension of an internal diameter (D) of the through hole and a dimension of the axial thickness (T) of the radially inner ring is between about 6.7 and about 11.1. A row of rolling bodies is interposed between the radially outer ring and the radially inner ring. A sealing shield is made of composite material and interposed between the radially inner ring and the radially outer ring, rotatable with respect to the rotation axis (X) and steadily anchored to the radially outer ring. The shield is provided with a sensor molded in it.