Dozing Blade Cutter With Compound Digging Face
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Solution Overview
Problem
Existing dozing blade technologies face inefficiencies due to unskilled operators stalling tractors or failing to effectively penetrate substrates, particularly in harsh environments like rocky terrain, leading to reduced productivity and increased maintenance needs.
Innovation Solution
A dozing blade assembly with a cutter featuring a steeply oriented center section and shallowly oriented outer sections, allowing for balanced penetrability and pushability, reducing the likelihood of stalling and improving material removal efficiency without complex adjustable systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional dozing blade with a uniform cutter design is used, then the blade can be simple in structure, but it causes tractors to stall when attempting to penetrate hard substrates or removes too little material when operated by unskilled operators
Solution Approach 1:
The cutter is designed with non-uniform geometry where the center portion has a steeper face angle (more vertical) compared to the outer portions which have shallower face angles. This local differentiation allows the center to effectively penetrate hard substrates while the outer portions maintain contact with the surface for material gathering, eliminating the need for highly skilled operators to manually adjust blade orientation.
2Strength
If a stinger bit is added to enable deep cut through hard material, then penetration capability is improved, but the device complexity and maintenance requirements increase significantly
Solution Approach 1:
The cutter is segmented into distinct zones (center and outer portions) with different face angles integrated into a single rigid structure. This segmentation achieves the penetration capability of a stinger bit without requiring movable components, hydraulic actuators, or complex adjustment mechanisms, thereby avoiding increased device complexity and maintenance requirements.
3Strength
If the cutter face angle is made steep to penetrate hard substrates, then penetration capability is improved, but the blade becomes difficult to push forward through the material
Solution Approach 1:
The cutter employs local quality differentiation where the center portion has a steeper face angle optimized for penetration while the outer portions have shallower face angles optimized for pushing. This spatial variation in geometry allows simultaneous optimization of both penetration capability and pushability, resolving the trade-off between these two opposing requirements.
Data Source
AI summary
A dozing blade assembly includes a dozing blade, and a cutter mounted to the dozing blade. The cutter includes a compound digging face extending between a proximal edge and a distal edge. The compound digging face has a steeply oriented center segment, and shallowly oriented outer segments, for balancing downward penetration with forward pushability during moving the dozing blade assembly through material of a substrate.