Lubricant Distributor Hall Sensor Piston Monitoring
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Solution Overview
Problem
Existing lubricant distributors face complexity and high costs in monitoring lubricant lines for blockages and tears, making it difficult to ensure proper lubrication and detect issues in a process-stable and economical manner.
Innovation Solution
Incorporating a Hall sensor in an adapter piece with a threaded section and entry bore, allowing for the detection of the metering piston's end position and monitoring of lubricant line conditions through defined time proportions, with alarm signals triggered for deviations from predetermined tolerances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex monitoring measures are used to detect blockages and tears in lubricant lines, then detection reliability is improved, but device complexity and cost increase
Solution Approach 1:
The patent replaces complex mechanical monitoring systems with a magnetic field-based Hall sensor system. The Hall sensor detects the position of the metering piston through magnetic field changes, eliminating the need for complex mechanical linkages, switches, or optical systems while achieving reliable detection of piston position and lubricant line conditions.
Solution Approach 2:
The patent introduces a magnetic field as an intermediary between the metering piston and the Hall sensor. The magnet attached to the piston creates a magnetic field that penetrates through the distributor housing and adapter piece, allowing non-contact detection of piston position without mechanical interference with the lubricant flow or piston movement.
2Difficulty of detecting and measuring
If extensive monitoring of lubricant lines is implemented, then detection capability is improved, but manufacturing cost increases
Solution Approach 1:
The patent employs a Hall sensor, which is a relatively inexpensive, standardized electronic component compared to complex mechanical or optical monitoring systems. The sensor can be easily replaced if needed, and its low cost allows for economical manufacturing while providing sufficient detection capability for piston position and lubricant line monitoring.
Solution Approach 2:
The Hall sensor serves multiple functions: it detects the position of the metering piston, monitors the operation cycle timing, and indirectly indicates lubricant line conditions (blockages or tears). This multi-functionality eliminates the need for separate sensors or monitoring devices for each parameter, reducing overall manufacturing cost while maintaining comprehensive detection capability.
3Measurement precision
If multiple sensors are used to monitor piston position and line conditions, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent utilizes the periodic back-and-forth movement of the metering piston as the basis for monitoring. The Hall sensor detects the periodic passage of the piston through its magnetic field, and the control unit evaluates the timing and duration of these periodic signals to determine both piston position and lubricant line conditions, achieving precise measurement with a single sensor.
Solution Approach 2:
The Hall sensor provides continuous feedback signals to the control unit about the piston position. The control unit processes this feedback information, measuring the time duration the piston spends in each position and the intervals between strokes, thereby deriving both position precision and diagnostic information about lubricant line conditions from a single sensor's feedback signal.
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 simple, economical, and process-stable monitoring of lubricant lines for blockages and tears, ensuring regular lubrication and reducing false alarms by using the Hall effect to detect changes in resistance and movement.
Implementation Method 1
the detector device includes a Hall sensor disposed in an adapter piece
Data Source
AI summary
A lubricant distributor for delivering lubricant to at least one lubrication point includes a lubricant distributor housing with a cylinder bore, a metering piston mounted for reciprocal movement in the cylinder bore, and a detector connected at an end of the cylinder bore, the detector including an entry bore configured to receive a portion of the metering piston, and the entry bore being in fluid communication with the cylinder bore, and the detector including an interior space separated from the entry bore by a wall and a Hall sensor in the interior space. The detector is configured to output a detection signal in response to detecting the portion of the metering piston in the entry bore. Also a method of operating the lubricant distributor.