Work Machine Blade Automatic Pitch Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Grading operations with blades having wings angled with respect to the central portion are inefficient due to uneven contact with the surface, leading to gaps and reduced effectiveness, as the cutting edge of the central portion may be the only part in contact, requiring additional passes and increased operator concentration.
Innovation Solution
A control system with a processor and memory that automatically adjusts the pitch of the blade based on operator commands and sensed wing positions, ensuring the cutting edges of the wings and central portion remain substantially level with the ground, using a linkage system and actuators to maintain optimal blade positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the blade wings are angled with respect to the central portion to improve work efficiency in certain conditions, then grading productivity is improved, but the blade contact uniformity deteriorates causing gaps and reduced effectiveness
Solution Approach 1:
The blade wing angle is made dynamically adjustable rather than fixed. The system automatically changes the wing angle relative to the central portion based on real-time grading conditions, allowing the blade to adapt its configuration for optimal contact uniformity while maintaining productivity benefits
Solution Approach 2:
The control system continuously monitors blade position, ground contact status, and grading effectiveness, then automatically adjusts the wing angle in response to this feedback. This closed-loop control ensures uniform blade contact while maintaining the productivity advantages of angled wings
2Manufacturing precision
If the blade position is manually adjusted to maintain contact with the surface, then blade contact uniformity is maintained, but operator workload and complexity increase
Solution Approach 1:
The blade positioning system operates autonomously without requiring manual intervention. Sensors detect blade contact status and the control system automatically adjusts blade position and wing angles to maintain uniform contact, making the system self-regulating and eliminating operator workload for this function
Solution Approach 2:
Manual mechanical adjustment by the operator is replaced with an automated control system that uses sensors, processors, and actuators to detect and correct blade position deviations, transitioning from human-operated mechanical adjustment to automated electronic control
3Manufacturing precision
If automatic pitch control is implemented to maintain blade levelness, then grading precision is improved, but device complexity increases
Solution Approach 1:
The control system performs multiple functions including pitch control, wing angle adjustment, and blade position monitoring within a single integrated unit. This multi-functionality reduces overall system complexity compared to having separate dedicated systems for each function
Solution Approach 2:
The pitch control system is merged with the existing blade positioning and wing adjustment mechanisms into a unified control architecture. By combining these functions and sharing sensors, processors, and actuators, the system achieves high grading precision while minimizing the increase in device complexity
Data Source
AI summary
A system and method for automatically adjusting the pitch of a work implement attached to a work vehicle, wherein the work implement has adjustable wings. The system and method include moving materials with a blade having an adjustable wing located at one end of a center portion of the blade. blade operatively connected to the work vehicle is positionable with respect to the work vehicle in response to an operator command. A commanded position of the blade is identified based on a blade positioning signal received from the operator command transmitted by an operator control device. An inclined position of the adjustable wing with respect to the center portion of the blade is identified. A pitch of the blade with respect to the work vehicle based is automatically adjusted based on the identified commanded position of the blade and the identified inclined position of the adjustable wing.