Vibrator Feed Container Coupling Control
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Solution Overview
Problem
Existing vibrator arrangements for soil improvement face downtime issues due to the need to vent the system and the risk of collisions between the feeder device and sluice, which can cause rope breakage and require stopping the sluice for bulk material transfer.
Innovation Solution
A vibrator arrangement with a sluice and feed container drive system where the feed container drive controller reduces its force to a lower value when coupling with the sluice, allowing for continuous operation during vibrator strokes and retraction, and independent movement of the feed container relative to the sluice, enabling bulk material transfer without stopping the system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the feed container is moved to the abutment position using a high force to ensure quick positioning, then the positioning speed is improved, but the risk of collision and rope breakage increases when the sluice is in motion
Solution Approach 1:
The feed container drive system dynamically adjusts its operating mode: during normal positioning it uses high force for quick movement, but during vibrator operation it switches to a controlled low-force mode that allows the elastic element to absorb motion discrepancies without causing collision or rope breakage
Solution Approach 2:
An elastic element (spring or rubber buffer) is introduced between the feed container and sluice to provide beforehand cushioning. This elastic element absorbs unexpected motion discrepancies and prevents direct collision, protecting the rope and mechanical components from damage
2Reliability
If the system is vented before bulk material transfer to allow feeder device docking, then the transfer safety is improved, but the operational downtime increases significantly
Solution Approach 1:
The feed container can be positioned and coupled to the sluice continuously during vibrator operation without requiring system venting. The independent positioning system maintains continuous useful action by allowing docking/undocking operations to proceed simultaneously with vibrator strokes, eliminating the downtime caused by venting cycles
Solution Approach 2:
The positioning and bulk material transfer functions are segmented into independent operations. The feed container positioning is controlled separately from the bulk material transfer timing, allowing the container to be docked undocked without interrupting the vibrator operation or requiring system venting
3Manufacturing precision
If the feed container is tightly coupled to the sluice to ensure precise material transfer, then the transfer precision is improved, but the system becomes vulnerable to rope breakage during sluice motion
Solution Approach 1:
An elastic element (spring or rubber buffer) is introduced between the feed container and sluice to provide beforehand cushioning. This elastic element absorbs unexpected motion discrepancies and prevents direct collision, protecting the rope and mechanical components from damage while maintaining sufficient coupling for precise material transfer
Solution Approach 2:
The coupling force parameter is dynamically changed based on operational phase: high coupling force during positioning for precision, low coupling force during vibrator operation to prevent rope breakage. The controller adjusts the drive force to maintain appropriate coupling strength without exceeding rope capacity
Data Source
AI summary
A vibrator arrangement for building soil improvement includes a sluice with a silo tube and a sluice drive for moving the sluice. The sluice is adapted to receive a bulk material and to guide the bulk material into the silo tube. A feed container for feeding the bulk material to the sluice is included and a feed container drive is provided for moving the feed container between a waiting position and an abutment position at the sluice. Also, a method for transferring bulk material from a feed container into a sluice with a silo tube of a vibrator device includes moving the sluice with a sluice drive and moving the feed container filled with the bulk material a between a waiting position and an abutment position at the sluice while the sluice is moving.