Mandrel Roll Axial Bearing Locking Mechanism
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Solution Overview
Problem
Existing ring-rolling machines face challenges in handling the mandrel roll in an operationally reliable and structurally simple manner, particularly in terms of lifting and lowering, due to complex control systems and lack of efficient mechanical measures.
Innovation Solution
A ring-rolling machine design featuring a mandrel roll mounted in upper and lower bearings, with the upper bearing configured as a fixed bearing having both radial and axial support, and equipped with locking elements that prevent accidental opening, allowing for reliable handling without additional control lines. The locking elements use ratchet systems or friction fits to secure the mandrel roll, and an opening drive that does not rotate with the mandrel roll, facilitating easy operation and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex control systems are used for lifting and lowering the mandrel roll, then operational reliability may improve, but device complexity increases
Solution Approach 1:
The patent replaces complex control systems with a purely mechanical locking mechanism. The opening means includes locking elements that mechanically prevent opening when the mandrel roll is not supported, eliminating the need for complex control lines and electronic control systems while maintaining operational reliability.
Solution Approach 2:
The locking elements are designed to automatically engage and disengage based on the presence or absence of the mandrel roll. When the mandrel roll is inserted, it automatically triggers the locking elements to lock the opening means closed; when removed, the locking elements automatically allow opening, making the system self-regulating without external control.
2Reliability
If additional control lines are added to improve mandrel roll handling, then operational reliability improves, but device complexity increases
Solution Approach 1:
The patent eliminates control lines by using a purely mechanical locking mechanism. The opening means is controlled solely by the mechanical interaction between the mandrel roll and the locking elements, removing the need for hydraulic, pneumatic, or electrical control lines and associated components.
Solution Approach 2:
The patent extracts and removes the complex control line system from the mandrel roll handling mechanism, retaining only the essential mechanical locking function. This simplification maintains reliability by focusing on the core mechanical interaction rather than adding complex control infrastructure.
3Ease of operation
If the axial bearing is made easily openable, then ease of operation improves, but operational reliability may worsen due to accidental opening
Solution Approach 1:
The locking elements are pre-configured to automatically engage when the mandrel roll is inserted into the axial bearing. This preliminary mechanical action ensures the bearing remains securely closed during operation without requiring additional control systems to prevent accidental opening.
Solution Approach 2:
The locking elements automatically lock the opening means closed when the mandrel roll is present and automatically allow opening when the mandrel roll is removed. This self-service mechanism provides both ease of operation and prevention of accidental opening without external control.
4Device complexity
If mechanical measures are used for mandrel roll handling, then device complexity reduces, but operational reliability may worsen
Solution Approach 1:
The patent uses a carefully designed mechanical locking mechanism that replaces complex control systems. The mechanical interaction between the mandrel roll, locking elements, and opening means provides inherent reliability through pure mechanical means, achieving both structural simplicity and operational reliability.
Solution Approach 2:
The opening means is segmented into distinct functional components: the locking elements that prevent opening, the opening drive that facilitates controlled opening, and the mandrel roll interface. This segmentation allows each component to perform its function reliably while maintaining overall structural simplicity.
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 enables operationally reliable and structurally simple handling of the mandrel roll, reducing operational complexity and enhancing reliability by preventing accidental opening and allowing for flexible vertical alignment, thus improving the ring-rolling process without the need for additional lifting apparatuses.
Implementation Method 1
The locking elements can have a locking effect by way of force fit or friction fit. In this regard, the friction fit can lock the locking elements in place when the opening means are supposed to be activated
Implementation Method 2
The locking elements can have at least one ratchet system, for example, on which the mandrel roll comes to rest and which is connected to interact with a locking latch
Implementation Method 3
This can take place by means of form fit, for example, which locks the locking elements as long as the mandrel roll is not supported at the bottom. For example, such form fit can be guaranteed between a groove on an underside of a mandrel roll head and corresponding projections on the locking elements
Data Source
AI summary
In a ring-rolling machine having a mandrel roll and a related radial roll, the mandrel roll can be handled in operationally reliable and structurally simple manner if an axial bearing of the mandrel roll is opened by way of an opening drive that does not rotate along with the mandrel roll and/or is closed by inserting the mandrel roll into the axial bearing.