Electromagnetic Working Assembly for Agriculture Machines
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Solution Overview
Problem
Existing agriculture machine working assemblies lack efficient and customizable solutions for rotating working tools, particularly in terms of adjustable driving force and space-saving designs, with existing technologies relying on motors and electronic controls that may not be adaptable to various applications.
Innovation Solution
A working assembly featuring a combination of a rotatable dynamic member and a static member with a coil assembly and permanent magnet assembly, providing an electromagnetic driving field for rotating the working tool, allowing for adjustable force and space-efficient implementation, with customizable permanent magnet assemblies and contact-free operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a motor with electronic rotation control is used to rotate the working tool, then the driving force can be provided reliably, but the device complexity increases and adaptability to different applications decreases
Solution Approach 1:
The patent replaces traditional motors with an electromagnetic rotating field system consisting of a static member with coil assemblies and a dynamic member with permanent magnets. This substitution eliminates complex electronic control systems while providing reliable driving force through the interaction between the electromagnetic field and permanent magnets, directly resolving the contradiction between reliability and device complexity.
Solution Approach 2:
The electromagnetic rotating field system is designed to be universally applicable to different agriculture machines (mowers, spreaders, seeders) by simply adjusting the coil assembly configurations and permanent magnet arrangements. This universal design provides reliable driving force across multiple applications without requiring complex electronic control adaptation, addressing both reliability and adaptability concerns.
2Force
If traditional motors are used for rotating working tools, then the driving force is sufficient, but the design is not space-saving and cannot be easily customized for different applications
Solution Approach 1:
The patent divides the driving system into separate static member (with coil assemblies) and dynamic member (with permanent magnets), allowing independent optimization of each component. This segmentation enables compact positioning of components, reducing overall volume while maintaining sufficient driving force, and facilitates easy customization for different applications.
Solution Approach 2:
The patent transitions from traditional axial motor designs to a planar electromagnetic rotating field configuration where coil assemblies and permanent magnets are arranged in opposing flat surfaces. This dimensional change allows for compact space utilization while generating sufficient driving force, and enables easy adaptation to various space constraints in different agriculture machines.
3Use of energy by moving object
If a brushless motor with FETs is used, then the motor efficiency is improved, but the device complexity increases due to the motor control circuit
Solution Approach 1:
The patent replaces the brushless motor with FETs and motor control circuit with a simpler electromagnetic rotating field system using permanent magnets and coil assemblies. This substitution maintains high energy efficiency through direct electromagnetic interaction while eliminating the complex motor control circuit, directly resolving the contradiction between energy efficiency and device complexity.
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 efficient and customizable rotation of agriculture working tools, allowing for adjustable driving force and space-saving designs, suitable for various applications such as spreaders, seeders, and mowers, with optimized tool operation and force measurement capabilities.
Implementation Method 1
The coil assembly is provided on one of the dynamic member and the static member and is suitable for providing an electromagnetic driving field which, in conjunction with the permanent magnet assembly, provides a driving force for rotating the dynamic member
Implementation Method 2
The permanent magnet assembly is provided on the other driving element and is suitable for cooperating with the electromagnetic driving field for providing the driving force
Data Source
AI summary
A working assembly (1) suitable for use in an agriculture machine, comprising a driving system (2) with a dynamic member (4) and a static member (6) and a working tool (3) received on the dynamic member (4), wherein essentially flat surfaces of the static and the dynamic member (4, 6) are provided opposite to each other. Further, the application contains an agriculture machine, namely one of spreader, seeder, and mower, comprising the working assembly (1).