Rail Lubricator Weight Sensing for Refill and Dispensing Control
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Solution Overview
Problem
Existing systems for lubricating railroad tracks lack an accurate and reliable method to measure and adjust the amount of lubricant dispensed, leading to inefficiencies in refilling reservoirs and potential downtime in rail traffic.
Innovation Solution
A rail sensor-activated lubrication system that uses a microprocessor to monitor the weight of the lubricant reservoir via load cells, adjusting dispensing amounts based on real-time data and communicating with remote monitoring devices to schedule refills, minimizing lubricant usage until refilled.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a weight sensor is used to monitor lubricant quantity in the reservoir, then the amount of lubricant dispensed and remaining can be determined accurately, but the device complexity increases
Solution Approach 1:
The weight sensor provides continuous feedback on the lubricant quantity in the reservoir to the controller. The controller processes this feedback signal and automatically adjusts the lubricant dispensing operation accordingly, creating a closed-loop control system that resolves the measurement precision versus device complexity contradiction.
Solution Approach 2:
The system enables self-service operation where the controller automatically monitors lubricant quantity via the weight sensor and adjusts dispensing operations without requiring manual intervention. This automation reduces operational complexity while maintaining accurate measurement.
2Loss of substance
If the amount of lubricant dispensed is reduced to minimize waste, then loss of substance decreases, but the reliability of lubrication may be compromised
Solution Approach 1:
The lubricant dispensing amount is made dynamic rather than static. The controller continuously adjusts the dispensing quantity based on real-time weight sensor feedback, allowing the system to optimize lubricant usage by dispensing only the necessary amount while maintaining reliable lubrication coverage.
Solution Approach 2:
The system changes the parameter of lubricant dispensing amount based on measured conditions. By monitoring the actual lubricant quantity in the reservoir and adjusting dispensing parameters accordingly, the system prevents both waste and insufficient lubrication.
3Device complexity
If manual monitoring of lubricant levels is used, then device complexity is low, but loss of time occurs due to unscheduled refilling and potential rail traffic downtime
Solution Approach 1:
The weight sensor provides continuous feedback on lubricant levels to the controller, which automatically detects when refilling is needed. This eliminates the need for manual monitoring and enables scheduled refilling operations that minimize rail traffic downtime while keeping the system relatively simple.
Solution Approach 2:
The system performs preliminary monitoring and detection of low lubricant levels before actual depletion occurs. This allows operators to schedule refilling operations in advance during planned maintenance windows, preventing unexpected downtime and maintaining simple operational procedures.
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
Ensures accurate lubricant management, reducing downtime and improving rail traffic efficiency by allowing for precise scheduling of refills based on real-time data, thus optimizing lubricant usage and maintenance.
Implementation Method 1
a load support member in the housing supporting the reservoir and a sensor proximate the load support member for sensing the weight of the reservoir
Implementation Method 2
a pump in fluid communication with the reservoir for delivering the lubricant from the reservoir
Implementation Method 3
The placement of lubricant on the rail and the flanged wheel of a rolling stock is important, for example, to prolong the life of the rail and the flanged wheel
Data Source
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AI summary
An improved method and apparatus for determining the amount of lubricant dispensed to a rail, adjusting the amount of available lubricant for dispensing based on the amount of lubricant remaining, and advising the operator of same. The apparatus includes a reservoir of lubricant suspended from a load beam having load cells communicating with a microprocessor and a controller to determine the amount of lubricant remaining within the reservoir on a real-time basis as lubricant is dispersed. The method includes the determination of the amount of lubricant remaining and, following dispensing additional lubricant, re-determining the amount of lubricant remaining. In this manner, an operator may prepare a schedule for replenishment of the reservoirs of various lubricating stations based on feedback of the remaining amount of lubricant remaining. Thus, an operator may predict track downtime for refilling of a plurality of lubricating stations and schedule such to minimized track downtime.