Demining Plough Scarifying Teeth and Evacuation Arms
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Solution Overview
Problem
Current demining plows generate a bead of earth during operation, requiring significant pushing effort due to the evacuation of soil by the mine clearing blade.
Innovation Solution
A demining plow design featuring scarification teeth with evacuation arms on rotatably mounted conveyor chains that move between the teeth, allowing for a raking motion with an inclined plane relative to the plow's direction of movement, eliminating the need for an evacuation blade and enabling adjustable depth and vertical positioning of the evacuation means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a mine evacuation blade is used to clear mines, then mines can be extracted from the ground, but a bead of earth is generated requiring significant pushing effort
Solution Approach 1:
The invention extracts the harmful function of the evacuation blade that creates earth beads. Instead of using a blade that pushes earth, the system uses conveyor chains with scarifying teeth that extract mines directly from the ground through a raking motion, eliminating the bead formation problem while maintaining mine extraction capability
Solution Approach 2:
The evacuation function is segmented into multiple discrete scarifying teeth mounted on conveyor chains, rather than using a single continuous blade. Each tooth works independently to rake and extract mines, distributing the work across multiple points and preventing earth accumulation that would require pushing force
2Productivity
If scarification teeth turn over earth, then mines can be loosened and extracted, but earth accumulation creates resistance to plow movement
Solution Approach 1:
The conveyor chains create a periodic raking action where scarifying teeth alternately engage and disengage from the ground. This periodic motion loosens mines effectively while allowing earth to fall back into place rather than accumulating into a continuous bead that resists plow movement
Solution Approach 2:
Instead of pushing earth forward with a blade, the system uses teeth that pull and rake earth backward toward the plow. This inverted direction of earth movement prevents bead formation and reduces resistance, as earth is gradually incorporated rather than piled up
Data Source
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AI summary
The plough (1) has scarifying teeth (3) integrated to an upper frame, and a mine evacuation unit supported by a lower arm, where the unit is in the form of evacuation arms (4). The arms are moved between the teeth to carry out a raking of a surface between the teeth, where each arm is moved between two successive teeth. The movement of each arm with respect to the plough is followed in a plane having an inclination in the order of 20 degrees with respect to a displacement direction of the plough.