Multi-Axis Degradation Pick Block for Drum Wear Reduction
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Solution Overview
Problem
Traditional blocks used to secure degradation picks on movable supports, such as rotatable drums, have a fixed footprint that limits the tightness and number of pick placement, leading to increased wear and reduced functional life of individual picks, especially at the edge of the drum where wear is most pronounced.
Innovation Solution
A high capacity block with nonparallel receptacles is designed to securely attach multiple degradation picks, allowing one pick to extend beyond the edge and another within the edge, minimizing stress and distributing impact forces effectively, while maintaining a reduced footprint.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If traditional blocks with fixed footprint are used to secure degradation picks, then the block structure is simple and easy to manufacture, but the number and tightness of pick placement is limited, leading to increased wear on individual picks
Solution Approach 1:
The block design transitions from a single-plane pick arrangement to a multi-dimensional configuration by incorporating nonparallel receptacles that extend in different directions from the block face. This allows picks to be positioned both within and beyond the drum edge in a tighter formation, effectively utilizing three-dimensional space to increase pick density without increasing the block's footprint.
Solution Approach 2:
The block is segmented into multiple receptacles with different orientations and positions, allowing each receptacle to accommodate a degradation pick at a specific angle and location. This segmentation enables optimized pick distribution across the drum surface, placing picks strategically where wear is likely to occur while maintaining structural integrity.
2Productivity
If additional degradation picks are positioned proximate the edge of the drum to engage additional material, then the productivity increases, but the block footprint increases, limiting tightness of pick placement
Solution Approach 1:
The block utilizes nonparallel receptacles that extend in different dimensional orientations from a compact base, allowing picks to reach beyond the drum edge while maintaining a small footprint. This multi-dimensional pick arrangement enables the block to engage material both at and beyond the drum perimeter without requiring additional lateral space.
Solution Approach 2:
Multiple pick functions are merged into a single compact block structure. Instead of using separate blocks for picks within the edge and beyond the edge, the invention combines multiple receptacles with different orientations in one block, allowing simultaneous engagement of material at various positions relative to the drum edge.
3Duration of action of stationary object
If more degradation picks are used to reduce wear on individual picks, then the functional life of each pick is extended, but the device complexity and block size increase
Solution Approach 1:
Multiple pick-holding functions are merged into a single integrated block structure. The block contains multiple receptacles with different orientations and positions, all within one unified component, eliminating the need for multiple separate blocks and reducing overall system complexity while supporting more picks.
Solution Approach 2:
The block is designed as a multi-functional component that can accommodate degradation picks in various orientations and positions simultaneously. The universal receptacle design allows the same block type to serve multiple pick placement configurations, reducing the variety of components needed and simplifying the overall system.
Data Source
AI summary
In such fields as road milling, mining and trenching it is often desirable to engage and degrade tough materials such as asphalt, concrete and rock. To do so, degradation picks comprising hardened distal tips may be secured to an exterior of a movable support such as a rotatable drum or continuous chain so as to be repeatedly brought into contact with a material to be degraded. To secure such degradation picks to the movable support, a block comprising a body with a base surface rigidly attachable to a movable support is disclosed. A first receptacle with a first central axis may be disposed on an external surface of the body and formed to receive a first removable degradation pick. A second receptacle with a second central axis may also be disposed on the external surface and formed to receive a second removable degradation pick where the first and second central axes are nonparallel.