Spinner Disc With Inclined Segments For Uniform Spreading
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Solution Overview
Problem
Existing spreader discs for winter service spreaders face challenges in achieving uniform distribution of spreading material over the desired width, as they often result in uneven distribution due to varying throwing distances and widths of throwing vanes.
Innovation Solution
The solution involves a spreading disc with differently inclined segments, where at least 50% of the radial extent of the segments are inclined relative to an inner area, with varying inclinations and sizes to achieve uniform throwing distances and patterns, allowing for a targeted spreading width and even distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If all throwing vanes are arranged with radially outer ends on different radii to create different spreading material compartments, then the spreading width is increased, but the distribution uniformity deteriorates due to varying throwing distances
Solution Approach 1:
The spreading disc surface is divided into multiple segments with different local inclinations. Each segment has a specific inclination angle relative to the radial direction, creating locally optimized throwing conditions. This allows different regions of the disc to compensate for each other's deficiencies, achieving overall uniform distribution while maintaining varied throwing distances for wide coverage
Solution Approach 2:
The inclination angle parameter of the disc surface is systematically varied across different segments. By changing this geometric parameter locally, the throwing distance and distribution pattern of each segment is optimized. This parameter variation compensates for the non-uniformity caused by different radial positions, resolving the contradiction between wide spreading and uniform distribution
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 configuration results in a highly uniform spreading pattern, ensuring that the spreading material is distributed evenly across the desired width, with different inclinations and segment sizes contributing to optimal centrifugal force and throwing distances, enabling precise control over the spreading width.
Implementation Method 1
The differently inclined segments result in different throw distances, which add up to a very uniform spreading pattern
Data Source
Figure 1
Figure 2~3D
Figure 4
AI summary
A winter service vehicle scatters an anti-ice and snow chemical agent onto the road surface by releasing a continual flow of the agent downwards onto a rotating plate. The plate has an array of radial scatter segments set at varying angles with respect to the plane of rotation.