Retractable Guide Plate for Roller Mill Servicing
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Solution Overview
Problem
The existing material bed roller mills require significant effort to remove and re-install rollers due to the obstruction caused by the grinding material guide plate, necessitating the laborious dismounting and re-mounting of the feed chute and hopper during servicing.
Innovation Solution
The grinding material guide plate is designed to be displaceable within a guide housing, allowing it to be moved out of the way during roller removal without requiring the feed chute to be raised, and is guided to prevent tilting, ensuring secure support during operation and easy access for servicing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the grinding material guide plate is securely connected to the feed chute, then the guide plate is reliably supported against forces exerted by grinding material, but the rollers cannot be removed from the machine frame without laborious dismounting of the feed chute
Solution Approach 1:
The grinding material guide plate is separated from the feed chute into an independent displaceable component. The guide plate can be moved independently within the guide housing without requiring disassembly of the feed chute, thus enabling roller removal while maintaining operational support reliability.
Solution Approach 2:
The guide plate transitions from a static securely connected state to a dynamic displaceable state. During operation, the guide plate is held in position to provide reliable support; during maintenance, it can be displaced to allow roller removal, thus adapting to different operational requirements.
2Ease of repair
If the feed chute is raised to remove the guide plate obstruction, then the rollers can be removed from the machine frame, but significant effort and time are required for dismounting and re-mounting
Solution Approach 1:
The guide plate is extracted from its traditional fixed position and integrated into a movable guide housing mechanism. This allows the guide plate to be independently displaced without moving the entire feed chute assembly, significantly reducing the time and effort required for roller removal and reinstallation.
3Ease of repair
If the grinding material guide plate is made displaceable, then the rollers can be easily removed from the machine frame, but the guide plate may tilt during displacement movement
Solution Approach 1:
Guide bodies act as intermediaries between the guide plate and the guide housing. These guide bodies engage with guide surfaces to constrain the guide plate's movement path, preventing tilting during displacement while still allowing the plate to move between operational and maintenance positions.
Data Source
AI summary
The invention relates to a material bed roller mill having two rollers (1, 2) which are rotatably supported in a machine frame (3) and driven in opposite directions and whose roller gap, which is charged from above with the grinding material to be comminuted, is delimited at its ends during the operation of the roller mill by a grinding material guide plate (5) which can be removed from its operating position, whereina) the grinding material guide plate (5) is displaceable in an upward direction and away from the end of the roller gap to such an extent relative to its operating position that the rollers (1, 2) can be removed from the machine frame (3) in the horizontal direction;b) during that displacement movement, the grinding material guide plate (5) is guided by guide bodies along an arc-shaped guide andc) in the operating position, the grinding material guide plate (5) is supported towards the outside against the forces exerted by the grinding material by support members which are connected pivotably to the grinding material guide plate.