Plan Sifter Drive with Dedicated Reluctance Motors
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Solution Overview
Problem
Existing plan sifters are limited to even-numbered multiples of sieving compartments, leading to poor access to the drive and unequal motion conditions, which restricts the efficient utilization of space and adaptability in sifting capacity.
Innovation Solution
Each sieving compartment has a dedicated drive, utilizing reluctance motors with ring-shaped toothed disks and outer coils, allowing for both even and odd numbers of compartments, with synchronized operation and flexible arrangement to optimize space usage and sifting capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single unbalance drive is used for multiple sieving compartments, then the device complexity is reduced, but the adaptability of sifting capacity and space utilization deteriorate
Solution Approach 1:
The patent divides the drive system into separate modular units, with each sieving compartment having its own dedicated drive. This segmentation allows independent control and configuration of each compartment, enabling flexible adaptation to different sifting requirements while maintaining manageable system complexity through standardized modular components.
2Area of stationary object
If sieving compartments are arranged in a closed ring configuration, then space utilization is improved, but access to the drive and motion uniformity deteriorate
Solution Approach 1:
The patent transitions from a two-dimensional planar arrangement to a three-dimensional stacked configuration, with drives positioned vertically above or below sieving compartments. This dimensional change enables better space utilization while maintaining easy access to drives and uniform motion distribution across all compartments.
3Stability of the object's composition
If even-numbered multiples of sieving compartments are used, then symmetric arrangement is achieved, but flexibility in configuration is limited
Solution Approach 1:
The patent introduces variable parameters including adjustable oscillation frequencies, amplitudes, and phase relationships for each drive unit. This dynamic capability allows the system to adapt to both even and odd numbers of compartments, maintaining operational stability and symmetry through active control rather than relying solely on fixed geometric arrangements.
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 solution enables effective utilization of space, adapts sifting capacity to requirements, and simplifies manufacturing and logistics by allowing odd-numbered compartment configurations with improved access and motion consistency.
Implementation Method 1
the drive is, for example, a reluctance motor with ring-shaped toothed disks and outer coils
Data Source
AI summary
A plan sifter for sifting or sieving, flour-like or granular products, includes at least one compartment. Each sifting compartment has a dedicated drive, so that the base surface available can be better utilized, and the sifting capacity can be better adjusted to actual needs.