Adjustable Ring Segments for Cutting Drum Optimization
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Solution Overview
Problem
Current cutting drum designs for earth moving equipment, such as continuous miners, require time-consuming and inefficient on-site modifications, as they cannot be adjusted on-site, limiting improvements in cutting performance, safety, energy efficiency, and cost reduction.
Innovation Solution
A method and design for a cutting drum comprising multiple ring segments with adjustable rotational positions, allowing for computer-simulated analysis and on-site adjustment of cutting tool lacing patterns to optimize operational objectives like energy usage, cost, throughput, and tool wear, using a computer program to determine and implement optimal ring segment positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cutting drum design is modified by returning it to the manufacturer, then the cutting performance can be improved, but the time consumption and inefficiency increase
Solution Approach 1:
The cutting drum is divided into multiple independently adjustable ring segments that can be modified separately. Each ring segment can be adjusted independently to optimize cutting performance without requiring complete drum disassembly or manufacturer intervention, thereby reducing modification time while maintaining performance improvement capabilities.
Solution Approach 2:
The cutting drum incorporates adjustable ring segments that can be dynamically repositioned along the drum axis. This dynamic adjustability allows operators to modify cutting geometry in the field according to different rock conditions, achieving performance optimization without fixed manufacturer-dependent modifications.
2Ease of manufacture
If the cutting drum has fixed ring segments, then the manufacturing simplicity is maintained, but the adaptability to different operating conditions decreases
Solution Approach 1:
The drum construction is segmented into multiple ring segments that can be manufactured separately and assembled independently. This segmentation maintains manufacturing simplicity for each component while enabling field adjustment of the overall lacing pattern, thus preserving ease of manufacture while achieving adaptability.
Solution Approach 2:
The adjustable ring segments are designed with universal mounting mechanisms that allow the same basic component to serve multiple functions - maintaining structural integrity when fixed and enabling lacing pattern adjustment when repositioned. This multi-functionality achieves adaptability without requiring entirely different component designs.
3Reliability
If computer simulated analysis is used to determine ring segment positions, then the design optimization is improved, but the complexity of the design process increases
Solution Approach 1:
Computer simulated analysis is performed in advance during the design phase to determine optimal ring segment positions for various cutting conditions. By pre-calculating and storing these optimized configurations, the actual field implementation requires only selecting from pre-determined options, reducing on-site complexity while maintaining design optimization benefits.
Data Source
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AI summary
A method of designing a cutting drum for earth moving equipment is disclosed. The cutting drum has two or more ring segments, each ring segment comprising a plurality of cutting tools, and the rotational position of at least one ring segment is adjustable relative to one or more other ring segment and fixable in the new rotational position. The method involves inputting a plurality of design parameters of a cutting drum into a computer program, performing a computer simulated analysis of the cutting drum using the computer program to determine at least one operational value associated with at least one design objective, using the computer simulated analysis to determine the relative locations of the ring segments that correspond to the at least one design objective, and rotating the or each adjustable ring segment relative to at least one other ring segment so that the relative locations of the ring segments correspond to the at least one design objective. A cutting drum for use with the method is also disclosed.