Adjustable Anti-Collision Detection for Stacker Crane Positioning
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Solution Overview
Problem
Existing stacker cranes suffer from inaccurate positioning, leading to potential collisions with obstacles, which can damage goods and cause safety hazards, particularly in the lithium battery industry, due to the long triggering stroke of limit switches in anti-collision structures.
Innovation Solution
A detection mechanism with an adjustable position detector and anti-collision member, featuring an adjustment assembly that adjusts the distance between triggering and standby positions, enhancing detection accuracy and response speed by shortening the displacement required for collision feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the triggering stroke of the limit switch is reduced to improve detection accuracy, then the collision response speed is improved, but the device complexity increases due to the need for adjustment assemblies
Solution Approach 1:
The limit switch triggering stroke is made adjustable through an adjustment assembly that allows the contact position to be dynamically repositioned. This enables the system to adapt the detection distance according to different operational requirements, resolving the contradiction between fixed long stroke and needed short stroke for accurate collision detection.
Solution Approach 2:
An adjustment assembly is introduced as an intermediary mechanism between the anti-collision member and the limit switch contact. This intermediary component enables precise control over the triggering stroke length, allowing the system to achieve accurate collision detection without directly modifying the limit switch itself.
2Reliability
If the anti-collision member displacement is reduced to improve collision response, then the detection sensitivity is improved, but the adjustment mechanism complexity increases
Solution Approach 1:
The anti-collision system is segmented into distinct functional components: the anti-collision member, the adjustment assembly with movable contact, and the limit switch. This segmentation allows independent optimization of each component, enabling precise control over the triggering stroke while maintaining overall system reliability for collision response.
Solution Approach 2:
The adjustment assembly pre-positions the limit switch contact at an optimal distance from the anti-collision member before collision occurs. This preliminary action ensures that when collision happens, the triggering stroke is minimized, improving collision response time without requiring complex real-time adjustments during operation.
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 mechanism improves detection accuracy, accelerates collision response, and reduces damage by allowing for sensitive collision detection and quicker stopping of the stacker crane, thereby protecting goods and preventing accidents.
Implementation Method 1
A first elastic member is telescopic in the first direction and connected between the anti-collision member and the fixing member
Implementation Method 2
A second elastic member is being telescopic in the first direction. A first end of the second elastic member abuts against the extension rod. A second end of the second elastic member abuts against the push rod, and presses the first matching portion against the first limit portion
Data Source
AI summary
A detection mechanism and a stacker crane is provided. The detection mechanism includes a position detector, an anti-collision member, and an adjustment assembly. The position detector includes a contact movable along a first direction. The anti-collision member is movable relative to the position detector between a first state and a second state along the first direction. The adjustment assembly is connected between the anti-collision member and the contact. When the anti-collision member is in the first state, the contact is in a triggering position and triggers the position detector to send a collision signal. When the anti-collision member is in the second state, the contact is in a standby position. The adjustment assembly is movable relative to the anti-collision member to adjust the distance between the triggering position and the standby position. The stacker crane includes the detection mechanism.