Baler Drive Chain Wear Detection via Tensioner Angle Monitoring
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Solution Overview
Problem
Baler drive transmission systems experience wear, leading to unnecessary downtime due to chain breakage, as existing technologies lack effective methods for monitoring and predicting wear levels.
Innovation Solution
A method and system for monitoring the angular displacement of a tensioning means in the drive transmission system, using sensors like Hall effect angle sensors, to determine the degree of wear in the endless drive transmission element, allowing for timely replacement and minimizing downtime.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the main drive chain is subjected to significant tension forces during bale formation, then the baling operation can be completed, but wear occurs in the main drive chain leading to breakage and downtime
Solution Approach 1:
The patent applies preliminary action by monitoring the angular displacement of the tensioning means before the drive chain actually breaks. The system detects wear progression through angular displacement measurements and alerts operators to replace the chain before failure occurs, preventing downtime while maintaining productivity
Solution Approach 2:
The patent implements feedback by continuously monitoring the angular displacement of the tensioning means and using this information to assess drive chain wear. The monitoring means provides real-time feedback on chain condition, enabling predictive maintenance decisions that balance chain durability with baling operation continuity
2Loss of time
If the main drive chain is replaced at appropriate intervals to prevent breakage, then downtime is reduced, but the ability to determine when replacement is needed is limited without wear monitoring
Solution Approach 1:
The patent replaces mechanical wear assessment methods with a sensing-based system. Instead of relying on mechanical indicators or scheduled maintenance, the system uses angular displacement sensors to electronically monitor and quantify drive chain wear, providing accurate information to minimize downtime
Solution Approach 2:
The patent introduces an intermediary monitoring means that measures the angular displacement of the tensioning means as an indirect indicator of drive chain wear. This intermediary measurement system bridges the gap between chain wear and observable parameters, enabling timely replacement decisions without direct chain inspection
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
Enables proactive replacement of worn-out components, preventing chain breakage and reducing operational costs by alerting operators when wear reaches critical levels, thus maintaining continuous baling operations.
Implementation Method 1
using sensors like Hall effect angle sensors
Data Source
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AI summary
A fixed chamber baler (2) comprises a method for determining the degree of wear in a main drive chain (53) of a drive transmission system (49) for transmitting drive from a gearbox (40) to sprockets (60, 72) of bale rotating rollers (17) of a bale chamber (10) of the baler (2). The drive transmission system (49) comprises a driving sprocket (50) mounted fast on a first output shaft (44) of the gearbox (40) which transmits drive through a main drive chain (53) to first and second driven sprockets (52, 54). A tensioning unit (79) comprising a carrier arm (83) pivotal about a main pivot axis (89) rotatably carries a tensioning sprocket (80) and is urged into engagement with a stack leg (84) of the main drive chain (53) by a tension spring (95). The degree of wear in the main drive chain (53) is proportional to the degree of stretch in the drive chain (53). An angle sensor (105) coupled to the carrier arm (83) by a linkage (107) monitors the angular displacement of the carrier arm (83) about the main pivot axis (89) from a datum position and produces signals indicative of the angular displacement of the carrier arm (83) from the datum position thereof. A look-up table is stored in the memory of a microcontroller comprising a plurality of values of the signal produced by the angle sensor (105) cross-referenced with corresponding degrees of stretch of the main drive chain (53), from which the degree of stretch of the main drive chain (53) is determined.