Roller Press Crushing Body Extraction Mechanism
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Solution Overview
Problem
Maintenance of crushing bodies in comminution devices, such as roller presses, is labor-intensive and time-consuming, leading to significant downtime due to the complexity of accessing and replacing these components.
Innovation Solution
A device equipped with a crushing body extraction mechanism that linearly and continuously moves the housing and crushing bodies from a first position within the frame to a second position outside the frame, allowing for easy access and maintenance, utilizing a combination of racks, pinions, and drive mechanisms for efficient movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If crushing bodies are fixed within the frame for comminution operation, then comminution function is maintained, but maintenance time and downtime increase significantly
Solution Approach 1:
The patent applies the dynamics principle by making the housing and crushing bodies movable rather than fixed. The extraction mechanism enables the housing to move linearly between a first position (within the frame for comminution) and a second position (partially outside the frame for maintenance), allowing rapid transition between operational and maintenance states without manual disassembly
Solution Approach 2:
The patent implements the extraction principle by designing a mechanism that automatically moves the housing and crushing bodies out of the frame to a maintenance position. This automated extraction eliminates the need for labor-intensive manual removal and positioning of crushing bodies, significantly reducing maintenance time
2Ease of repair
If crushing bodies are manually accessed for maintenance, then maintenance can be performed, but labor intensity and complexity increase
Solution Approach 1:
The patent applies the self-service principle by designing a system where the housing and crushing bodies automatically move to the maintenance position through the extraction mechanism. This self-positioning capability eliminates the need for operators to manually handle heavy crushing bodies, reducing both labor intensity and operational complexity while improving accessibility
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 solution reduces maintenance downtime by 2-11% and enhances safety, improving the cost-effectiveness and efficiency of maintenance operations while allowing for safer maintenance practices.
Implementation Method 1
The extraction mechanism can include a rack attached to the frame and a pinion connected to the housing so that the pinion is positioned for engagement with the rack
Data Source
AI summary
A comminution device can include a crushing body extraction mechanism. The crushing body extraction mechanism can be configured to permit one or more crushing bodies (e.g. rollers of a roller press, etc.) to be continuously moved linearly away from a frame to expose the crushing bodies from the frame. In some embodiments, the extraction mechanism may be configured to utilize one or more rack and pinion mechanisms. The pinion for each such mechanism may be powered by one or more rotary motors or other type of rotary drive mechanism. In other embodiments, the extraction mechanism can include one or more rack and ratchet mechanisms. Each rack and ratchet mechanism may include a hydraulic cylinder or other linear actuator that is extendable and retractable for actuating motion of a ratchet along a rack having columns of differently angled steps to facilitate extension and retraction of one or more crushing bodies.