Motor Grader Blade Neutral-Position Control for Easier Operation
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Solution Overview
Problem
The operator's burden is increased when the blade of a motor grader is not positioned at a neutral position relative to the swing circle, making it difficult for less skilled operators to accurately move the blade to a desired position.
Innovation Solution
A motor grader equipped with a controller that receives operation signals to adjust the position of the blade and draw bar closer to a neutral position using actuators, ensuring synchronized movement of the blade and draw bar to facilitate precise positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the blade is positioned away from the neutral position during work, then the blade can perform grading functions effectively, but the operator burden increases and positioning accuracy deteriorates
Solution Approach 1:
The control system continuously monitors the blade position relative to the swing circle and provides feedback to automatically adjust the blade to the neutral position. This feedback mechanism enables the system to detect position deviations and correct them automatically, reducing operator burden while maintaining positioning accuracy.
Solution Approach 2:
The motor grader performs self-positioning by automatically returning the blade to the neutral position without requiring continuous manual intervention. The system uses sensors and actuators to autonomously adjust the blade position, making the operation simpler and more reliable.
2Manufacturing precision
If manual operation of lift cylinders is used to move the blade, then the system structure remains simple, but positioning precision deteriorates when the blade is away from neutral position
Solution Approach 1:
The patent replaces purely manual mechanical operation with an automated control system that uses sensors, controllers, and actuators to position the blade. This substitution of mechanical manual control with an automated control system improves positioning precision while managing device complexity through integrated control architecture.
Solution Approach 2:
The control system dynamically adjusts operational parameters such as actuator movement amounts based on the blade's current position relative to the swing circle. By changing these parameters automatically, the system achieves precise positioning without requiring complex mechanical structures.
Data Source
AI summary
A motor grader includes an operation apparatus, a swing circle, a blade supported on the swing circle, a first actuator arranged along a longitudinal direction of the blade, the first actuator moving the blade in a lateral direction with respect to the swing circle, and a controller that causes the first actuator to operate. The controller receives an operation signal from the operation apparatus and causes the first actuator to operate based on the received operation signal such that a position of the blade with respect to the swing circle comes closer to a neutral position of the blade with respect to the swing circle.