Front Loader Spill Guard Detection Link Positioning
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Solution Overview
Problem
Conventional front loaders face issues where the detection link of the spill guard link mechanism may come into contact with the ground during operation, leading to potential failure in preventing soil from spilling.
Innovation Solution
The detection link of the spill guard link mechanism is positioned proximate to the bucket pivot support axis and above the lower surface of the boom, with a pivot support portion positioned above the axis center of the bucket pivot axis, and is disposed on the interior of the boom to prevent contact with the ground.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the detection link is positioned at the front end portion of the boom to detect bucket dumping, then the spill guard function is achieved, but the detection link may come into contact with the ground causing potential failure
Solution Approach 1:
The detection link is repositioned from a horizontal arrangement (prone to ground contact) to a vertical arrangement above the boom's lower surface. By changing the spatial dimension and orientation, the link maintains its detection function while eliminating the harmful ground contact scenario.
Solution Approach 2:
The detection link serves as an intermediary element that transfers the bucket's dumping motion to the control valve. By positioning it vertically above the boom and connecting it to the bucket bracket near the pivot support axis, it reliably detects dumping without risking ground contact.
2Reliability
If the detection link is positioned vertically above the boom to prevent ground contact, then reliability is improved, but the detection of bucket dumping motion must be maintained
Solution Approach 1:
The detection link provides feedback about the bucket's dumping motion to the control valve. By positioning it vertically and connecting it to the bucket bracket near the pivot support axis, it accurately detects the bucket's angular position and dumping state, converting mechanical motion into control signals.
Solution Approach 2:
The detection link acts as a mechanical intermediary that translates the bucket's dumping rotation into detectable motion. Its vertical positioning above the boom, connected to the bucket bracket, allows it to follow the bucket's angular displacement without contacting the ground, maintaining detection capability while improving reliability.
Data Source
AI summary
A detection link of a spill guard link mechanism is pivoted and connected to a bucket bracket in a position proximate to a bucket pivot support axis rotatably supporting a bucket and above a lower surface of a boom.