Dumper Tire Load Indicator Method Using Environmental Correction

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Solution Overview

Problem

The existing methods for determining the stresses on dumper tires in heavy-duty applications, such as those in mines and quarries, are inefficient due to the complexity of tire assembly and disassembly, and do not adequately account for varying environmental and operational parameters, leading to reduced productivity and tire lifespan.

Innovation Solution

A method that calculates the product of load and distance traveled by a dumper tire over a given period, corrected by a real-time integration of vehicle and environmental parameters like terrain slope, temperature, and soil type, using a computer system to determine an indicator of tire stress, allowing for precise monitoring and optimized tire usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the vehicle load capacity is increased to meet performance requirements, then the load capacity is improved, but the tire dimensions and assembly complexity increase

Engineering Contradiction:
Improveload capacityVSAvoidtire assembly complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The tire is divided into modular components including the tread element, bead, and sidewall sections that can be independently manufactured and assembled. This segmentation allows for simplified assembly procedures while maintaining the high load capacity required for heavy-duty mining applications

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent modifies tire parameters such as using steel cord reinforcement instead of traditional fabric plies, changing the tire structure from conventional radial to bias-ply or mixed-ply configurations, and adjusting tread patterns to optimize for high-load mining conditions while controlling assembly complexity

Inventive Principle:
Principle #35Parameter changes

2Strength

If the tire dimensions are increased to support heavier loads, then the load capacity is improved, but the assembly and disassembly time increases

Engineering Contradiction:
Improveload capacityVSAvoidassembly and disassembly time
Core Design Contradiction:
StrengthVSLoss of time

Solution Approach 1:

Tire components such as the tread elements and sidewall sections are pre-assembled into modular units before being installed on the rim. This preliminary assembly reduces the time required during actual tire changes by minimizing the number of individual components that need to be handled during maintenance operations

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent extracts the bead section as a separate removable component that can be quickly detached from the rim without requiring removal of the entire tire. This extraction of the bead allows for rapid tire changes by enabling the tread and sidewall to remain on the rim while only the bead needs to be removed and reattached

Inventive Principle:
Principle #2Taking out (Extraction)

3Strength

If the number of clamping parts is increased to secure larger tires, then the load capacity is improved, but the assembly complexity and time increase

Engineering Contradiction:
Improveload capacityVSAvoidnumber of clamping parts
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

Multiple clamping functions are merged into integrated rim structures such as locked rotor rims or welded bead seats that permanently secure the bead to the rim. This merging eliminates the need for numerous separate clamping parts while maintaining the secure attachment required for high-load mining tires

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent uses standardized rim and bead interface designs that replicate proven secure attachment geometries, allowing for consistent and reliable tire-to-rim connections without requiring complex or numerous clamping mechanisms. Standardized copying of successful attachment designs simplifies the overall system while maintaining strength

Inventive Principle:
Principle #26Copying

4Measurement precision

If the correction factor integrates more use parameters, then the measurement precision is improved, but the device complexity increases

Engineering Contradiction:
Improvetire stress indicator precisionVSAvoidparameter integration complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

A single microprocessor-based control system integrates multiple sensor inputs (temperature, pressure, load, speed) and performs multiple functions including real-time tire stress calculation, wear prediction, and maintenance scheduling. This universal controller consolidates what would otherwise require multiple separate systems into one integrated unit, maintaining measurement precision while controlling complexity

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

Data Source

PatentEP1839910B1Method of determining a load indicator supported by a dumper tyre
Publication Date: 2012.11.28 MICHELIN & CO (CIE GEN DES ESTAB MICHELIN)
  • EP1839910B1 patent drawing
  • EP1839910B1 patent drawing
  • EP1839910B1 patent drawing

AI summary

The method involves measuring a load transported by a vehicle, and measuring a distance traveled by the vehicle for a given period. Product of the load and the distance is carried out. Utilization parameters, including direction/inclination of the vehicle, temperature, snow cover, path width, or slope of ground, are measured on the vehicle and in utilization environment of the vehicle. The product is corrected by a multiplier correction factor integrating a sum of the parameters, where the parameters are balanced by predefined coefficients.