Comminuting Mill Screen and Suction Bin Swivel Mechanism
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Solution Overview
Problem
Existing cutting mill designs with a suction bin require significant space and labor for maintenance due to the independent placement of the suction bin below the machine, leading to extended downtimes and reduced economic efficiency.
Innovation Solution
Integration of the suction bin with the screen as a single rigid machine component, utilizing a swivel mechanism to retract or extend both components, allowing for easy accessibility without increasing the overall machine height, and positioning the swivel axis above the rotor tools to enhance lateral access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the suction bin is positioned as an independent component below the housing, then the machine height is increased, but the accessibility of the rotor and screen is improved
Solution Approach 1:
The patent combines the suction bin and screen into a single integrated assembly that can be collectively removed or positioned. This merging allows both components to be accessed together through a single access point, improving ease of operation without requiring additional vertical space that would increase machine height.
Solution Approach 2:
The screen is made movable relative to the housing, allowing it to be positioned in different locations including being removed completely from the housing. This dynamic positioning enables the screen and suction bin assembly to be accessed easily without permanently increasing the machine's footprint or height.
2Ease of operation
If the suction bin is removed and screen is removed to access the rotor, then the accessibility of the rotor is improved, but the maintenance time is increased
Solution Approach 1:
By integrating the suction bin and screen into a single removable assembly, the patent allows both components to be removed together in one operation. This eliminates the sequential removal process that would take more time, thereby improving accessibility to the rotor while minimizing maintenance time.
3Ease of operation
If the screen is swiveled downward about a horizontal swivel axis, then the accessibility of the screen is improved, but the space requirement in the downward direction is increased
Solution Approach 1:
The screen is designed with a swivel mechanism that allows it to be moved downward about a horizontal axis. This dynamic capability provides easy access to the screen for maintenance while the ability to swivel it back into position minimizes the permanent space requirement in the downward direction.
Solution Approach 2:
The screen is separated from the housing as a distinct, movable component. This segmentation allows the screen to be swiveled independently into an accessible position without requiring the entire housing to be redesigned, thus providing accessibility while maintaining compact overall dimensions.
Data Source
AI summary
Apparatus for comminuting pourable feedstock, including a housing surrounding a comminution space, in which housing a rotor rotating about an axis is disposed, the rotor being equipped around its circumference with rotor tools. A screen is disposed here along one portion of the rotor circumference. The apparatus is charged with feedstock through a product inlet, and the sufficiently comminuted product is drawn off through a product discharge. The product discharge includes a suction bin to collect the screen through fraction, which bin can be connected to a suction line to allow the collected product to be transported away. In order to improve the accessibility of the rotor for repair and maintenance work while simultaneously preserving a compact constructive design of the apparatus, the screen and the suction bin form one unit that can be swiveled as a whole about a horizontal swivel axis relative to the rotor.