Loading Machine Control Device Avoiding Bucket Interference
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Solution Overview
Problem
Existing loading machine control systems fail to prevent interference between the bucket and the loading target during the transition from loading to excavation, leading to potential collisions and operational inefficiencies.
Innovation Solution
A control device with a loading target specifying unit, an avoidance position specifying unit, and a movement processing unit that determines an interference avoidance position and outputs signals to drive the swing body and work equipment to move the bucket to this position, ensuring safe passage to the excavation point without interfering with the loading target.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the bucket moves directly from the loading position to the excavation position, then the movement time is reduced, but the bucket may interfere with the loading target during the transition
Solution Approach 1:
The control device specifies an interference avoidance position in advance before the bucket moves from the loading position to the excavation position. The swing body is driven first to move the bucket to this predetermined safe position, ensuring that the bucket does not interfere with the loading target during the transition. Only after reaching the avoidance position does the system proceed to drive the work equipment to move the bucket to the excavation position.
2Productivity
If the control device drives both the swing body and work equipment simultaneously, then the bucket reaches the excavation position faster, but the loading target and bucket may interfere with each other
Solution Approach 1:
The movement process is divided into two distinct phases: first, the swing body is driven to move the bucket to the interference avoidance position; second, after the bucket reaches the avoidance position, the work equipment is driven to move the bucket to the excavation position. This segmentation ensures that the bucket follows a safe path that avoids the loading target while still achieving efficient operational flow.
Data Source
AI summary
A loading machine includes a swing body and work equipment with a bucket. A control device of the loading machine includes a loading target specifying unit that specifies a position and shape of a loading target, an avoidance position specifying unit, and a movement processing unit. The avoidance position specifying unit specifies an interference avoidance position based on the position and shape of the loading target. The movement processing unit outputs an operation signal to drive only the swing body until the bucket reaches the interference avoidance position from a loading position above the loading target, to cause the bucket to move to the interference avoidance position. The movement processing unit outputs an operation signal to drive the swing body and the work equipment after the bucket has reached the interference avoidance position, to cause the bucket to move to an excavation position above an excavation target.