Rotor Protection Plate Guide Slot for Faster Tip Block Replacement
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Solution Overview
Problem
The process of replacing rotor tip blocks in VSI crushers is time-consuming due to their secure attachment via a bolted rotor protection plate, necessitating its removal for access.
Innovation Solution
A rotor protection plate with a guide slot aligned with rotor tip block openings allows for the tip blocks to be inserted or removed without unbolting the protection plate, using a guide slot recessed by flanges for easy access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rotor tip blocks are secured by a bolted rotor protection plate, then the rotor tip blocks are securely held in place, but the replacement process requires unbolting and removing the rotor protection plate, which is time-consuming and tedious
Solution Approach 1:
The rotor protection plate is segmented into functional zones: a securing portion with bolt holes for reliable attachment to the rotor body, and a separate guide slot portion that provides guidance for tip block insertion/removal. This segmentation allows the plate to simultaneously provide secure mounting and facilitate quick maintenance without requiring removal of the entire assembly.
Solution Approach 2:
The guide slot acts as an intermediary mechanism between the rotor tip block and the rotor protection plate. It provides a guided pathway that enables the tip block to be inserted and removed through the plate without requiring the plate itself to be unbolted or removed, thus mediating the maintenance process.
2Ease of operation
If the rotor protection plate is removed to replace rotor tip blocks, then access to the rotor tip blocks is achieved, but the process becomes more complex and time-consuming
Solution Approach 1:
The guide slot is pre-formed as an integral part of the rotor protection plate during manufacturing. This preliminary action creates a ready-made pathway that simplifies the maintenance procedure by eliminating the need to unbolt and remove the protection plate, thereby reducing both the complexity and time required for tip block replacement.
3Reliability
If rotor tip blocks are replaced regularly due to abrasive material feed, then the crushing performance is maintained, but the frequent replacement increases maintenance downtime
Solution Approach 1:
The maintenance system is made dynamic by incorporating the guide slot that enables quick insertion and removal of rotor tip blocks. This dynamic feature allows the tip blocks to be replaced in-place without removing the protection plate, significantly reducing maintenance downtime and improving operational efficiency while maintaining reliable crushing performance.
Data Source
AI summary
A rotor protection plate for mounting on an upper plate of a rotor body of a crusher, in particular a vertical shaft impact crusher, is provided. The rotor protection plate comprises a body having an inner face defining a guide slot that is operably arranged to be in register with a rotor tip block opening defined on the upper plate of the rotor body and spaced apart therefrom to allow for a rotor tip block to be partly inserted into the guide slot during removal of the rotor tip block from, or insertion of the rotor tip block into, the rotor body.