Dozing Blade Cutter with Angled Sections for Hard-Substrate Penetration
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Solution Overview
Problem
Existing dozing blade technologies face inefficiencies due to the need for complex and costly adjustable systems, such as hydraulic actuators, and require skilled operators to avoid stalling or shallow cutting, particularly in challenging substrates like rocky terrain.
Innovation Solution
A multi-piece cutter configuration for dozing blades with a middle and outer body sections, each with distinct face angles, allowing for optimized penetration and pushability without the need for adjustable systems, by orienting the cutting edges in a service configuration that balances downward penetrability with forward pushability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a single-piece cutter configuration is used, then manufacturing is simpler, but penetration capability through hard substrates is insufficient
Solution Approach 1:
The cutter is divided into multiple body sections (first, second, and third body sections) with different face angles. The first body section has a first face angle optimized for penetration through hard substrates, while the second and third body sections have a second face angle optimized for pushing material. This segmentation allows each section to perform its specific function effectively, achieving both penetration capability and material pushing without requiring complex adjustable systems.
2Productivity
If adjustable systems like hydraulic actuators are used, then penetration and pushability can be optimized, but cost and maintenance requirements increase
Solution Approach 1:
Different sections of the cutter are given different local properties through varying face angles. The first body section has a steeper face angle for penetration, while the second and third body sections have shallower face angles for pushing. This local differentiation of geometric properties achieves optimized performance for both penetration and pushing functions without requiring complex adjustable mechanical or hydraulic systems.
3Productivity
If operators use excessive force to avoid stalling, then material removal increases, but energy consumption and equipment wear increase
Solution Approach 1:
The cutter is designed with dynamic geometric properties through its multi-section configuration, where each section's face angle is optimized for its specific function. The first body section with its steeper face angle dynamically engages with hard substrates for penetration, while the second and third body sections dynamically push the loosened material. This dynamic geometric design allows the system to adapt to varying substrate conditions without requiring operators to apply excessive force, thereby reducing energy consumption and equipment wear while maintaining high material removal rates.
Data Source
AI summary
A cutter for a dozing blade includes a middle, first, and second section, each defining a plurality of bolting holes for receiving bolts to mount the cutter in a service configuration upon a dozing blade. The first and second sections each define a greater face angle between digging and mounting faces which is about 20° or less, and the middle section defines a lesser face angle between digging and mounting faces. The cutter may be provided in a service package for installation in place of a used cutter in a dozing blade.