Modular Drive Coupling for Food Processing Working Units
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Solution Overview
Problem
Existing devices for food processing, such as crushing and stirring devices, require a dedicated drive device due to a fixed connection between the drive and working units, leading to increased production costs, larger device sizes, and inefficient storage, as well as contamination issues during operation.
Innovation Solution
A modular drive device design with a detachable coupling element and separating unit allows the drive device to be used across various devices with different working units, reducing the need for separate drive units and enabling easier cleaning by separating the drive and working units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed connection between drive device and working unit is used, then the drive device can reliably drive the working unit, but the device size increases and storage space is required
Solution Approach 1:
The drive device is divided into separate components: a drive unit and a coupling element. The coupling element can be detached and reattached to different working units, allowing the drive unit to be stored separately when not in use, thereby reducing the size of individual devices while maintaining reliable connection during operation
Solution Approach 2:
The connection between drive device and working unit is made dynamic through detachable coupling elements that can be quickly attached and detached. This allows the system to transition between connected and separated states, enabling reliable operation when connected and compact storage when detached
2Reliability
If a dedicated drive device is provided for each device type, then the drive can be optimized for specific working units, but production costs increase
Solution Approach 1:
The drive unit is designed with universal coupling elements that can interface with multiple types of working units through standardized connection mechanisms. This allows a single drive unit design to serve multiple device types, reducing production costs through economies of scale while maintaining optimized performance for each application
Solution Approach 2:
The coupling elements are designed with adjustable or interchangeable parameters (such as polygonal shapes with different numbers of sides) that allow the same basic drive unit structure to accommodate different working units by changing coupling parameters rather than redesigning the entire drive system
3Device complexity
If the drive device is integrated with the working unit, then the device structure is simplified, but contamination of the drive device occurs during operation
Solution Approach 1:
The drive unit is extracted from the working unit and separated by a separating element. This physical separation prevents contamination of the drive unit by food or other materials processed by the working unit, while the coupling mechanism maintains structural integration during operation. The drive unit can be easily removed for cleaning or replacement
4Adaptability or versatility
If a modular design with detachable coupling is used, then the drive device can be used for multiple devices reducing costs, but the coupling mechanism becomes more complex
Solution Approach 1:
The coupling mechanism uses standardized polygonal shapes (such as hexagons) that provide universal compatibility across different device types. The same basic coupling design can interface with various working units through standardized interfaces, achieving versatility without requiring complex custom mechanisms for each application
Solution Approach 2:
The coupling elements use asymmetric polygonal shapes with specific numbers of sides that prevent incorrect mating while ensuring proper alignment. This asymmetric design provides foolproof connection while maintaining simplicity, as the shape itself encodes the correct orientation and compatibility information without requiring complex locking or alignment mechanisms
Data Source
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AI summary
The invention relates to a drive device (10) for driving a working unit (30) comprising chopping elements for foodstuffs, and to a method for driving the working unit. The drive device (10) and the working unit (30) are modular in design, wherein the working unit (30) is coupled to a rotary transfer unit (18) of the drive device (10) by means of a coupling device (31).