Disc Grinding Device and Grinder Comprising the Same
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing disc grinding devices face challenges in improving function and reliability, particularly in achieving consistent fineness and preventing blockages during the grinding process.
Innovation Solution
The disc grinding device features rotor and stator teeth that extend in an inclined or curved manner, with adjustable grinding gaps and varying tooth arrangements that become finer from the center to the edge, incorporating mixing zones to enhance delivery and prevent jamming, allowing for adaptable grinding of different products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the rotor teeth and rotor grooves extend in an inclined or curved manner with respect to the radial direction, then the delivery effect is improved, but product jamming between the teeth increases
Solution Approach 1:
The groove width is designed to be at least approximately 1.5 to 3.5 times larger than the groove depth, creating a locally optimized geometry where the wider groove section prevents product jamming while the inclined/curved overall configuration maintains good delivery effect. This local quality adjustment resolves the contradiction between improved delivery and reduced jamming.
2Manufacturing precision
If the grinding gap becomes narrower radially from the disc axis towards the edge, then grinding fineness is improved, but the risk of blockages increases
Solution Approach 1:
The tooth arrangement is designed with varying characteristics across different radial zones, creating local quality variations that optimize both fineness and blockage prevention. The groove dimensions and tooth configurations are locally adapted to balance grinding precision with reliable product flow.
Solution Approach 2:
The grinding device divides the grinding zone into multiple stator ring regions and rotor ring regions with different tooth arrangement characteristics. This segmentation allows different zones to have optimized parameters for their specific function, with inner regions providing coarser grinding and outer regions providing finer grinding, while mixing zones separate these regions to prevent blockages.
3Adaptability or versatility
If multiple stator ring regions with different tooth arrangements are used to achieve varying fineness, then grinding adaptability is improved, but device complexity increases
Solution Approach 1:
The tooth arrangement is segmented into multiple stator ring regions and rotor ring regions, each with optimized characteristics for specific grinding tasks. This segmentation provides adaptability for different product requirements while maintaining a systematic structure that manages complexity through functional zonation.
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 design enhances the grinding efficiency and fineness consistency, minimizes product jamming, and allows for adjustable output fineness, improving the overall reliability and adaptability of the grinding process.
Implementation Method 1
Upon rotation of the rotor, the rotor teeth temporarily lie at least partially opposite the stator teeth and, with their toothed rotor surfaces and toothed stator surfaces, define an annular grinding gap
Data Source
AI summary
The invention relates to a disc grinding device (2) with a stator disc (3) and a rotor disc (4) which are disposed coaxially with respect to a common disc axis and have at least approximately the same diameter, and the mutually facing sides of which correspondingly contain an annular toothed stator surface and an annular toothed rotor surface, wherein the annular toothed stator surface contains at least one stator ring region with stator teeth, which are spaced apart by stator grooves in the peripheral direction, and the annular toothed rotor surface contains at least one rotor ring region with rotor teeth, which are spaced apart by rotor grooves in the peripheral direction, wherein the toothed rotor surfaces and the toothed stator surfaces define an annular grinding gap and are disposed and formed in such a way that the grinding gap becomes narrower radially in the direction from the disc axis towards the edge of the stator disc (3) and rotor disc (4), wherein the rotor teeth and rotor grooves extend in an inclined or curved manner with respect to the radial direction of the rotor disc (4), and/or wherein at least two stator ring regions with stator teeth and/or rotor ring regions with rotor teeth lie adjacently in the radial direction of the stator disc (3) or rotor disc (4) respectively and have stator teeth or rotor teeth respectively and/or stator grooves or rotor grooves respectively of different designs, and/or wherein the stator grooves and/or rotor grooves become narrower in the direction from the disc axis towards the edge of the stator disc (3) or rotor disc (4) respectively. The invention furthermore relates to a grinder (1) comprising such a disc grinding device (2).