Detachable Wing Casing for Feed Mixer Auger
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Solution Overview
Problem
Feed mixer wagons often have suboptimal mixing and discharge behavior due to non-customized additional blades, which are difficult and costly to replace, leading to inefficiencies and wear.
Innovation Solution
A detachable blade system with a driver stub and wing casing that can be easily swapped for different blades with varying angles, sizes, and materials, allowing for quick adaptation to specific feed types and compositions, simplifying production and spare parts management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the additional blade is welded to the worm shaft, then the blade is securely fixed, but the replacement and adaptation of the blade becomes time-consuming and labor-intensive
Solution Approach 1:
The additional blade is divided into two separable parts: a driver stub that remains permanently attached to the worm shaft, and a blade casing that can be easily detached and replaced. This segmentation allows the blade casing to be swapped without affecting the permanent mounting structure, thus enabling quick adaptation while maintaining secure fixation through the driver stub.
Solution Approach 2:
The connection between the blade casing and driver stub is designed to be dynamically changeable - easily detachable for replacement yet securely fixed during operation. The transverse web with screw holes provides a mechanism that allows the blade casing to be quickly attached or detached from the driver stub, transforming the static welded connection into a dynamic, adaptable connection.
2Productivity
If the additional blade is customized for specific feed types, then mixing performance is optimized, but production complexity and spare parts inventory increase
Solution Approach 1:
By separating the blade into a permanent driver stub and replaceable blade casings, the system allows different blade casing designs (optimized for different feed types) to be created without redesigning the entire mixing auger. Only the blade casing portion needs to be customized, simplifying production compared to customizing the entire assembly.
Solution Approach 2:
A single driver stub design serves as a universal mounting interface for multiple different blade casing types. This universal driver stub can accommodate various blade casings with different geometries, angles, and materials, each optimized for specific feed types, thereby reducing overall production complexity while maintaining optimized mixing performance.
3Productivity
If the additional blade is designed with complex geometry for optimal mixing, then mixing effect is improved, but manufacturing cost and difficulty increase
Solution Approach 1:
The complex geometric features required for optimal mixing are concentrated in the blade casing portion, which can be manufactured separately using appropriate processes and then attached to the simpler driver stub. This segmentation allows the complex geometry to be optimized for performance without complicating the manufacturing of the entire assembly.
Solution Approach 2:
The driver stub acts as an intermediary element that simplifies the manufacturing process. Instead of manufacturing a complex integrated blade, the system uses a simple driver stub as a mediator to which various pre-manufactured blade casings can be attached, thereby reducing manufacturing complexity while maintaining optimal mixing geometry in the blade casing.
Data Source
Figure 1~2
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Figure 5~7
AI summary
A mixing auger for feed mixer wagons has a screw shaft (6) rotatable about a vertical axis of rotation (2), with a screw thread (3) and an additional wing (7). The additional wing (7) comprises a drive stub (9) attached to the screw shaft (6) and a wing cover (10) which can be detachably attached to the drive stub (9).