Box Blade Earth Grading Implement with Segmented Walls
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional box blade earth grading implements lack the ability to adjust blade height and angle, and are prone to lateral tilting when encountering obstructions, disrupting smooth grading operations.
Innovation Solution
The box blade design incorporates extendable and retractable wall segments with linear motion actuators and pivot joints, allowing for adjustable blade height and angle, and skid plates that can pivot over obstructions to maintain grading orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional box blade implements use a fixed rigid blade structure, then the structure is simple and easy to manufacture, but the blade cannot adjust height or angle and becomes laterally tilted when encountering obstructions
Solution Approach 1:
The box blade structure is divided into multiple segments including a blade assembly, wall assembly, and skid plate assembly that can move independently relative to each other. The walls are divided into upper and lower segments that can pivot independently, allowing the blade to adjust its position and angle while maintaining structural integrity.
Solution Approach 2:
The invention transforms the static rigid blade structure into a dynamic system where the blade, walls, and skid plates can move and adjust their positions. Linear motion actuators provide active control for blade height and angle adjustment, while pivot joints enable passive adaptation when encountering obstructions.
2Reliability
If the box blade uses a fixed rigid structure, then manufacturing is easier, but the blade cannot adapt to varying terrain and becomes disrupted by obstructions
Solution Approach 1:
The box blade employs dynamic components including linear motion actuators for active blade positioning and pivot joints for passive adaptation. These mechanisms allow the blade to maintain contact with the ground surface while adapting to terrain variations and obstructions, ensuring continuous grading operations.
Solution Approach 2:
The invention enables continuous adjustment of blade parameters including height, angle, and lateral position through linear motion actuators and pivot joints. This allows the blade to adapt to varying terrain conditions and maintain reliable grading performance across different operating conditions.
3Ease of operation
If the box blade encounters a protrusion such as a rock, then the fixed blade becomes laterally tilted disrupting grading, but adding adjustment mechanisms increases complexity
Solution Approach 1:
The box blade uses dynamic wall and skid plate assemblies with pivot joints that can rotate independently when encountering obstructions. This allows the skid plates to lift over rocks and protrusions while the blade maintains its grading position, ensuring smooth continuous operation without lateral tilting.
Solution Approach 2:
The separation of the blade assembly from the wall and skid plate assemblies allows independent movement of each component. When obstructions are encountered, the skid plates can pivot independently while the blade remains stable, maintaining grading accuracy without requiring complex active control systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables precise grading and smooth operation over varying terrain by allowing adjustable blade positioning and skid plate movement over obstacles, minimizing disruptions and maintaining grading efficiency.
Implementation Method 1
the left and right linear motion actuators comprise two way hydraulic cylinders which are mounted vertically extending and retracting the left and rights walls' lower segments
Implementation Method 2
pivot joints with the each of the walls' lower segments... the left and right pivot mounts may attach either to the walls' lower segments or to upper surfaces of their skid plates. Such mounts preferably comprise pivot facilitating pivoting pin, eye and clevis joints
Data Source
AI summary
A box blade earth grading implement incorporating a blade; a left wall having upper and lower segments, the lower segment having a lower end, and the upper segment being attached to the left end of the blade; a right wall having upper and lower segments, the lower segment having a lower end, and the upper segment being attached to the right end of the blade; left and right skid plates attached to the lower ends of the lower wall segments; left and right hydraulic cylinders having left and right upper mounts attaching to the walls' upper segments; left and right pivot mounts attaching the lower ends of the left and right hydraulic cylinders to the left and right skid plates; and a towing tongue extending forwardly from the blade.