Centrifugal Spreader Parameter Calculation
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Solution Overview
Problem
The adjustment of centrifugal spreader parameters to achieve precise distribution of agricultural materials is time-consuming due to the need for extensive measurements and calculations involving multiple variables, especially when fertilizer properties are unknown.
Innovation Solution
A method to calculate setting parameters using a universal variable that characterizes the spreading material's flight and slipping behavior, allowing for automatic adjustment of centrifugal disc speed, type, and throwing blade geometry, reducing the need for complex measurements by using sensors and pre-determined values from databases or algorithms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If extensive measurements and calculations involving multiple variables are performed to adjust centrifugal spreader parameters, then precise distribution of agricultural materials is achieved, but the adjustment process becomes time-consuming
Solution Approach 1:
The patent transforms multiple material parameters (density, grain size, geometry) into a single universal variable that characterizes the spreading material. This parameter transformation allows the system to maintain precise distribution control while reducing the complexity of adjustment procedures, as the calculator device can determine all necessary setting parameters from this single universal variable rather than requiring extensive measurements of multiple individual parameters.
Solution Approach 2:
The patent replaces manual measurement and adjustment procedures with an automated calculator device that uses sensors and pre-stored data in databases. The system automatically determines setting parameters by processing the universal variable through algorithms and formulas, substituting the mechanical/manual adjustment process with an automated computational system that provides both precision and speed.
2Measurement precision
If measurements are carried out for all possible values of corresponding parameters to create tables and formulas, then accurate setting parameters are obtained, but the process becomes extremely time-consuming
Solution Approach 1:
The patent pre-calculates and stores setting parameters in databases for various universal variable values and spreading material types. When a specific material needs to be spread, the system simply queries the database using the measured universal variable and retrieves the pre-determined setting parameters, eliminating the need to perform extensive measurements and calculations at the time of adjustment while maintaining high accuracy.
Solution Approach 2:
The patent creates a universal characterization system where a single universal variable can represent different spreading materials (granules, pellets, flakes) with varying properties. This universal approach allows the same calculator device and database to handle diverse materials, making the system both accurate across different materials and efficient in operation.
3Manufacturing precision
If multiple parameters are adjusted to meet target values for throw distance and throw angle, then precise spreading control is achieved, but the complexity of the adjustment process increases
Solution Approach 1:
The patent extracts the essential characteristics of spreading materials into a single universal variable, separating the material-specific properties from the machine setting parameters. This extraction simplifies the adjustment process by allowing the calculator device to focus on determining settings based on this condensed material characterization, rather than requiring adjustment operators to consider and measure multiple independent material parameters simultaneously.
Solution Approach 2:
The universal variable acts as an intermediary between the spreading material properties and the centrifugal spreader settings. Instead of directly linking multiple material parameters to multiple setting parameters, the system uses the universal variable as a mediator that translates material characteristics into appropriate machine settings through pre-stored relationships in the database, simplifying the overall adjustment process.
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
This approach simplifies the adjustment process by enabling precise control of the spreading pattern and working width with minimal testing, allowing for efficient operation even with unknown fertilizer properties, and reduces the number of necessary spreading tests.
Implementation Method 1
The spreading material is accelerated in the radial direction by the centrifugal forces that occur by means of the throwing vanes arranged on the rotating centrifugal disc and is distributed in this way.
Data Source
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AI summary
Device and method for adjusting the settings of a centrifugal spreader as a function of general parameters characterizing the spreading material, preferably its flight and/or sliding properties. With sufficient characterization of the centrifugal spreader's properties, this allows for simple adjustment of the settings without lengthy spreading trials, since the centrifugal spreader's settings are based on these general parameters.