Gravimetric Distribution Head with Interrupted Blades
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Solution Overview
Problem
Existing distribution heads for bulk materials in gravimetric loading systems suffer from limited filling capacity and non-uniform distribution due to backpressure and occupied inner space, leading to inefficient spreading and casting distances.
Innovation Solution
A rotatably driven spreader plate with blades that are interrupted towards the central drive shaft, forming an axially extending ring channel for additional filling space, and radially inwardly directed edges that create a partial flow to mix with outward flows, increasing the casting distance and absorption volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a centered conical distribution body is positioned on the spreader plate, then the structure provides a defined distribution geometry, but the inner radial space surrounding the drive shaft cannot be used for material distribution
Solution Approach 1:
The conical distribution body is completely removed from the spreader plate design. Instead, the invention uses the drive shaft itself as the central element and creates distribution blades that extend radially outward from the drive shaft circumference, extracting the harmful conical body while preserving the essential distribution function through the blade geometry alone
Solution Approach 2:
The invention transitions from a vertical/conical distribution approach to a horizontal/radial distribution approach. By positioning blades radially outward from the drive shaft and utilizing the circumferential area around the shaft, the design exploits the horizontal dimension that was previously unused, converting the drive shaft from a mere support element to an active distribution component
2Device complexity
If blades extend to the inner circumference of the drive shaft, then the structure is compact, but no usable inner axially extending ring gap is provided for additional filling material
Solution Approach 1:
The blades are segmented radially with intentional gaps between them, creating discrete distribution zones. These gaps form axial ring channels that allow additional filling material to flow through the inner circumferential area, transforming the continuous blade structure into a segmented design that enables dual-functionality for both distribution and additional filling
Solution Approach 2:
The inner circumferential area around the drive shaft is given multiple functions: it serves as both the mounting location for blade roots and as an additional filling channel. The axial ring channels formed by blade gaps allow this space to simultaneously support structural attachment and material flow, achieving multi-functionality in a previously wasted space
3Device complexity
If a fixed distribution sheet is provided on the radial outer side of spreader blades, then the structure is simplified, but the fixed sheets oppose the distributed filling flow and hinder uniform distribution
Solution Approach 1:
The invention replaces static fixed distribution sheets with dynamic rotating blades that are actively driven by the rotating spreader plate. This dynamic approach allows the blades to move with the material flow rather than opposing it, enabling uniform distribution through rotational motion while maintaining structural simplicity
Solution Approach 2:
Instead of placing distribution elements on the outer radial side of blades as in conventional designs, the invention inverts the approach by using the blade edges themselves as the primary distribution elements. The blades extend radially outward and their edges directly engage the material flow, eliminating the need for separate outer distribution sheets and reversing the conventional arrangement
4Device complexity
If blades are non-rotatably fixed on the spreader plate, then the structure is simple, but the casting distance is limited and distribution capacity is very limited
Solution Approach 1:
The invention merges the blade mounting function with the drive shaft itself. Blades are fixed to the drive shaft circumference rather than being separately mounted on the spreader plate, combining the rotational drive function with the distribution function into a single integrated structure, thereby increasing distribution capacity without adding 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
This configuration enhances the spreading capacity by utilizing the inner radial space for additional filling, preventing axial filling column formation and improving the uniformity and distance of bulk material distribution.
Implementation Method 1
a rotatably driven spreader plate with blades evenly distributed on the circumference and with their blade edges approximately in a radially outward direction
Implementation Method 2
the blade edges of blades are interrupted in the direction of the central axial drive shaft and thus a ring channel extending in the axial direction and free from structures is formed
Implementation Method 3
radially inwardly directed edges that create a partial flow to mix with outward flows, increasing the casting distance and absorption volume
Data Source
AI summary
A distribution head of a gravimetric loading system for spreadable bulk materials with a rotatably driven spreader plate, which is composed of a bottom side base plate, which is connected in the central region with the one end of a drive shaft and on which a number of blades evenly distributed on the circumference and with their blade edges approximately in a radially outward direction is arranged. The blade edges of blades are interrupted in the direction of the central axial drive shaft and thus a ring channel extending in the axial direction and free from structures is formed, which channel forms an additional filling and receiving space for the bulk material to be distributed.