Electromagnetic Rolling Mill Actuation Without Hydraulic Oil
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Solution Overview
Problem
Existing rolling mills face challenges with fire risks, environmental pollution, and mechanical inefficiencies due to hydraulic systems, and the non-reversibility of electric drives limits their durability.
Innovation Solution
The implementation of electromagnetic actuators, which eliminate hydraulic oil and mechanical connections, providing precise control and safety features, including internal position measurement systems and torque control, to ensure reliable and repeatable deformation processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If hydraulic systems are used for driving rolling mill components, then high force and torque can be generated, but fire risks and environmental pollution increase due to hydraulic oil
Solution Approach 1:
The patent replaces the hydraulic system with an electromagnetic actuator system. The electromagnetic actuators (linear or rotary) directly generate the necessary forces and torques without using hydraulic oil, thereby eliminating fire risks and environmental pollution while maintaining the high force generation capability needed for rolling mill operations
Solution Approach 2:
The patent extracts and removes the hydraulic oil from the system by replacing the entire hydraulic drive mechanism with electromagnetic actuators. This extraction eliminates the harmful hydraulic fluid while preserving the functional capability of generating high forces for driving rolling mill components
2Force
If hydraulic systems are used for driving rolling mill components, then high force and torque can be generated, but environmental pollution increases due to hydraulic oil
Solution Approach 1:
The patent substitutes the hydraulic system with an electromagnetic actuator system that generates high forces without using hydraulic oil. This substitution eliminates environmental pollution from oil leaks and disposal while maintaining the necessary force generation for rolling mill operations
Solution Approach 2:
The patent extracts the harmful hydraulic oil from the system and replaces it with an electromagnetic actuation system. This removal of hydraulic fluid eliminates the source of environmental pollution while preserving the functional capability of generating high forces
3Object-affected harmful factors
If electric drives with mechanical connections are used, then fire risks are reduced, but durability is limited due to non-reversibility and mechanical wear
Solution Approach 1:
The patent replaces electric drives with mechanical connections with electromagnetic actuators that have no mechanical connections or wear parts. The electromagnetic actuators use magnetic fields for force generation, eliminating mechanical wear and non-reversibility issues while maintaining fire safety
Solution Approach 2:
The patent substitutes mechanical transmission systems with direct electromagnetic actuation. The electromagnetic actuators directly drive the rolling mill components without mechanical gearboxes, belts, or other connection elements, thereby eliminating mechanical wear and improving durability while maintaining fire safety
4Force
If hydraulic systems with pipes and tanks are used, then force transmission is achieved, but device complexity and maintenance requirements increase
Solution Approach 1:
The patent extracts and removes pipes, tanks, and other hydraulic infrastructure from the system by replacing the hydraulic system with electromagnetic actuators. This simplifies the device structure while maintaining force transmission capability through direct electromagnetic actuation
Solution Approach 2:
The patent substitutes the complex hydraulic system with a simpler electromagnetic actuator system. The electromagnetic actuators directly generate and transmit force without requiring pipes, tanks, or other hydraulic infrastructure, thereby reducing device complexity and maintenance requirements
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 solution drastically reduces fire risks, environmental pollution, and mechanical maintenance, while enhancing productivity and energy efficiency by eliminating pipes and mechanical contacts, allowing high-speed and precise deformation processes.
Implementation Method 1
a rolling mill for rings and/or discs with at least one first linear axis (5) of operational movement and at least one second linear axis (5') of operational movement controlled by at least one first and one second linear electromagnetic actuators (10)
Data Source
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AI summary
A rolling mill for hot deformation of circular-shaped materials is described, comprising at least one radial roller (1), one or more axial conical rollers (2), a plurality of centering rollers (3), a mandrel (4) and a radial electromagnetic actuator (10), the mandrel (4) and the axial conical rollers (2) being configured to be operatively moved along a first linear axis (5) and along a second linear axis (5') perpendicular to the first linear axis (5), the plurality of centering means (3) being configured to be operatively moved along the first linear axis (5), the radial electromagnetic actuator being configured to control the spindle (4) to carry out its operative movement along the its first linear axis (5).