Tundish Carriage Lifting Mechanism Simplification
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Solution Overview
Problem
Existing tundish carriages with four lifting devices require complex synchronization control systems, leading to potential inclinations and safety risks, and are costly and complicated to maintain.
Innovation Solution
A tundish carriage design with only two hydraulic lifting devices, supported by a single vertical support and coaxial rollers, utilizing a hydraulic flow divider for synchronization and path sensors for precise control, eliminating the need for expensive synchronization regulation and simplifying the construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If four lifting devices are used to support the tundish, then the lifting capacity and stability are improved, but the device complexity and synchronization control requirements increase significantly
Solution Approach 1:
The patent merges the four separate lifting devices into a single lifting device that supports the tundish. This consolidation eliminates the need for complex synchronization control systems while maintaining the lifting function. The single lifting device is integrated with the carriage frame to provide stable support without requiring coordination between multiple independent actuators.
2Stability of the object's composition
If four lifting devices with synchronization control are used, then the lifting stability is improved, but the investment costs and maintenance complexity increase
Solution Approach 1:
The patent extracts the synchronization control system from the lifting mechanism, removing the source of complexity and cost. By using a single lifting device instead of four coordinated devices, the patent eliminates the expensive synchronization regulation infrastructure while maintaining lifting stability through the simplified mechanical design.
3Device complexity
If a single vertical support with two lifting devices is used, then the device complexity is reduced, but the ability to compensate for tundish deformation must be maintained
Solution Approach 1:
The patent introduces a tilting table with dynamic adjustment capability that can adapt to tundish deformation during operation. The tilting table is supported by springy supports that provide elastic adaptation, allowing the system to compensate for deformation dynamically while maintaining the simplified single vertical support structure.
4Manufacturing precision
If hydraulic piston-cylinder units are used for lifting, then the lifting precision is improved, but the synchronization control requirements and costs increase
Solution Approach 1:
The patent employs a hydraulic flow divider that automatically distributes hydraulic fluid to the piston-cylinder units without requiring external synchronization control. The flow divider self-regulates the fluid distribution based on the mechanical load and position, providing precise lifting while eliminating the need for complex electronic synchronization systems.
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
This design ensures precise and reliable operation with reduced costs and enhanced safety by eliminating the need for complex synchronization control, allowing for precise movement and deformation compensation, while maintaining reliable displacement accuracy.
Implementation Method 1
a connection of the two hydraulic lifting devices, instead of a hydraulic synchronization control, by a hydraulic flow divider to a common feeding conduit
Implementation Method 2
the tilting table, which is provided in the vertical support on the loose side, is supported in the vertical support at both ends with a springy supports. Thereby, an elastic adaptation of the tundish position after an extended operational period becomes possible.
Data Source
AI summary
A tundish carriage with a lifting device (1) for a tundish (2) for liquid steel materials, in particular in a multi-strand caster, wherein the tundish (2) is supported, with a possibility to be lifted or lowered, by controlled electromechanical or hydraulic lifting devices (1a, 1b) on a carriage frame (7), prevents a quadruple arrangement of piston-cylinder units and a complicated synchronization control, with security for personnel and a noticeable simplification of construction, by providing a single vertical support (9) and only two lifting devices (1a, 1b).