Undercarriage Roller Wear Monitoring via Internal Sensors

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Solution Overview

Problem

Current methods for monitoring the wear of roller assemblies in track undercarriages of heavy equipment are inadequate, leading to unnoticed lubricant issues and premature failure due to lack of real-time monitoring, resulting in increased maintenance costs and safety hazards.

Innovation Solution

An internal monitoring system is implemented within the roller assemblies, using sensors to detect temperature, lubricant levels, and bushing wear, allowing for early detection and prevention of damage through real-time feedback.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual temperature monitoring is performed using a laser-sighted infrared thermometer, then roller temperature can be measured, but the monitoring requires a person to be in close proximity to heavy equipment which creates safety hazards and cannot be performed during everyday operation

Engineering Contradiction:
Improveroller temperature measurementVSAvoidcontinuous monitoring capability
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The roller assembly performs self-monitoring through integrated temperature sensors that continuously measure internal temperatures without requiring external manual intervention. The sensor system automatically detects temperature changes and transmits data, allowing the equipment to monitor itself during normal operation rather than requiring periodic manual checks.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The manual mechanical process of using an infrared thermometer is replaced with electronic temperature sensors integrated into the roller assembly. These sensors provide continuous automated measurement and data transmission, eliminating the need for manual operation and enabling monitoring during equipment operation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Ease of manufacture

If roller assemblies are monitored only during pre-scheduled preventative maintenance, then inspection can be performed, but wear and lubricant depletion occur before maintenance intervals resulting in premature failure

Engineering Contradiction:
Improvemaintenance schedulingVSAvoidroller assembly operational status
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

Temperature sensors continuously monitor roller assembly conditions and provide real-time feedback about wear and lubricant status. This feedback enables condition-based maintenance scheduling rather than fixed interval maintenance, allowing intervention precisely when needed based on actual component condition rather than arbitrary time intervals.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The sensor system detects early signs of wear and lubricant depletion before they lead to failure, providing advance warning that enables proactive maintenance scheduling. This preliminary detection allows maintenance to be performed at optimal times based on actual component condition.

Inventive Principle:
Principle #10Preliminary action

3Device complexity

If no internal monitoring system is installed, then the equipment structure remains simple, but wear status of internal components like bushings and lubricant cannot be detected

Engineering Contradiction:
Improveroller assembly structureVSAvoidinternal wear status
Core Design Contradiction:
Device complexityVSDifficulty of detecting and measuring

Solution Approach 1:

Temperature sensors serve as intermediary devices that indirectly measure wear status and lubricant condition by detecting temperature changes caused by friction and heat generation. These sensors translate internal physical conditions into measurable electrical signals that can be monitored and analyzed for wear detection.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 enables early detection of lubricant and bushing wear, reducing maintenance costs by allowing for timely replacement or repair, preventing premature failure and ensuring continuous operation of the undercarriage.

Implementation Method 1

A temperature sensor is disposed within or mounted to the roller assembly to measure the temperature of the roller assembly

Methodology Applied
Scientific EffectTemperature measurement:

Implementation Method 2

A Hall effect sensor is disposed within an opening in the end cap to produce a voltage that correlates to the thickness of the bushing

Methodology Applied
Scientific EffectHall effect: Hall Effect

Data Source

PatentUS10696337B2Wear monitoring device and method of monitoring undercarriage and roller wear
Publication Date: 2020.06.30 WEARPRO INC
  • US10696337B2 patent drawing
  • US10696337B2 patent drawing
  • US10696337B2 patent drawing

AI summary

An undercarriage monitoring device has a roller assembly including a fixed roller component and a bushing. An opening is formed within the fixed roller component. A first sensor is disposed within the opening of the fixed roller component over the bushing. The first sensor is configured to sense a first physical characteristic of the bushing. The fixed roller component is a shaft or a housing. The first sensor is a temperature sensor or a Hall effect sensor. A magnet is disposed on the roller assembly. A second sensor is disposed within the opening of the fixed roller component over the bushing. The second sensor is configured to sense a second physical characteristic of the bushing. A data transmitting device is coupled to the first sensor. Data is collected from the sensor. The data collected from the sensor is transmitted to a receiving device.