Loading Machine Bucket Stop Control During Swing Inertia
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In automatic loading control of loading machines, the inertia of the swing motion can cause the swing body to continue moving while the work equipment stops, leading to a lower bucket trajectory and potential interference with the loading object, as the vertical motion of the work equipment stops before the swing motion.
Innovation Solution
A control device that generates operation signals to move the bucket to a loading point and includes a stop processing unit to brake the swing body and retract the work equipment when the bucket's height is lower than the loading point, ensuring controlled stopping and avoiding interference with the loading object.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If automatic loading control is stopped during swing motion and raising of work equipment, then the work equipment stops earlier due to smaller inertia, but the swing body continues swinging by inertia causing the bucket trajectory to become lower than target trajectory
Solution Approach 1:
The control device performs preliminary action by detecting the工作状态 (work state) before stopping automatic loading control, and preemptively switching to manual control mode. This prevents the trajectory deviation caused by inertia mismatch between work equipment and swing body, as the system transitions to manual control before the swing body's inertia causes the bucket to follow a lower trajectory than target.
2Loss of time
If automatic loading control is stopped during swing motion, then the work equipment stops due to smaller inertia, but the swing body cannot stop immediately due to larger inertia of swing motion
Solution Approach 1:
The control device uses feedback by continuously monitoring the work state (automatic loading control execution state) and responding to stop commands by detecting this state. When a stop command is received during automatic loading control, the system detects the current工作状态 and switches to manual control mode, ensuring coordinated stopping of both work equipment and swing body while preventing bucket interference with loading object.
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
The control device effectively manages the stop of automatic loading, considering the position of the loading object, thereby preventing bucket interference and ensuring accurate trajectory control.
Implementation Method 1
there is a possibility that a swing motion cannot be stopped immediately due to the inertia of the swing motion of the swing body provided with the work equipment
Data Source
AI summary
A movement processing unit is configured to generate operation signals of a work equipment and a swing body for moving a bucket to a loading point based on a start command of an automatic movement of the bucket. A stop processing unit is configured to brake a swing of the swing body based on a stop command of the automatic movement of the bucket, and is further configured to generate an operation signal for retreating the work equipment when a height of the bucket is lower than the loading point.