Modular Pavement Grinding Drum for Fast Bit Replacement
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Solution Overview
Problem
Existing grinding machines require laborious and time-consuming maintenance and replacement of worn grinding bits due to the complex assembly of plates supporting the grinding bits, which complicates the process.
Innovation Solution
A grinding drum with a mounting tube featuring a plurality of bit mounting receivers arranged circumferentially and longitudinally, allowing for individually removable and replaceable bit mountings, along with end hubs that simplify assembly and provide balanced grinding through helical arrays and angled mountings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If multiple plates are stacked on a shaft to assemble the grinder, then the grinding drum can be constructed with sufficient structural strength, but the maintenance and replacement of grinding bits becomes laborious and time-consuming
Solution Approach 1:
The grinding drum is segmented into multiple individual bit mounting receivers distributed around the drum circumference, allowing independent access and replacement of each grinding bit through its own receiver without requiring disassembly of the entire drum structure or removal of multiple plates
Solution Approach 2:
Each grinding bit is extracted as an independent replaceable component with its own dedicated mounting receiver, allowing the bit to be removed and replaced individually while the rest of the drum structure remains intact and assembled
2Reliability
If multiple plates need to be removed to access and replace a worn grinding bit, then the grinding bits can be securely mounted, but the replacement process becomes time-consuming and reduces operational efficiency
Solution Approach 1:
The mounting structure is segmented into multiple independent receivers, each providing secure mounting for a single grinding bit while allowing independent access to each receiver without affecting the security or position of other bits
Solution Approach 2:
The bit mounting receivers are pre-configured with threaded bores and mounting holes positioned to allow direct access and secure mounting of grinding bits, eliminating the need for preliminary disassembly of multiple plates before replacement
Data Source
AI summary
A pavement grinder is configured to rotate to remove pavement. The pavement grinder includes a pavement grinding drum with bit mountings mounted to the pavement grinding drum. The bit mountings are individually removable from and replaceable on the drum. The bit mountings each include a bit that is configured to engage with the pavement to remove pavement.