Ring Rolling Mill Mandrel Inclining Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional ring rolling mills cannot apply different pressing forces locally on a ring-shaped body in both the peripheral and thickness directions, limiting the precision and efficiency of the rolling process.
Innovation Solution
A ring rolling mill equipped with a mandrel inclining/supporting mechanism that allows the mandrel to be inclined relative to the main roll, enabling varying gap dimensions between the mandrel and main roll surfaces, thus allowing for differential pressing forces along the peripheral and thickness directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the main roll and mandrel are kept with parallel axes of rotation, then the structure is simple and easy to operate, but the pressing forces cannot be made different locally in the peripheral portion of the ring-shaped body
Solution Approach 1:
The patent introduces asymmetry by inclining the mandrel axis relative to the main roll axis. This asymmetric configuration allows the gap between the mandrel and main roll to vary along the axis direction, enabling different pressing forces to be applied at different locations on the ring-shaped body's peripheral portion, thereby achieving local pressing force control while maintaining operational simplicity
2Adaptability or versatility
If the mandrel is inclined relative to the main roll axis, then local pressing force control is achieved, but the device complexity increases
Solution Approach 1:
The patent employs dynamic adjustment mechanisms that allow the mandrel inclination angle to be changed during the rolling process. This dynamic capability enables the system to adapt to different rolling requirements without requiring multiple fixed-angle mandrels, thereby achieving local pressing force control while limiting the increase in device complexity through reusable, adjustable components
Data Source
Figure 1~2
Figure 3~5
Figure 6~7
AI summary
This ring rolling mill includes a main roll and a mandrel provided so as to be capable of being brought close to or separated from each other, and rolling a peripheral portion of a ring-shaped body in a radial direction of the ring-shaped body while the ring-shaped body is rotated along its peripheral direction in a state where the peripheral portion of the ring-shaped body is pinched in the radial direction between an outer peripheral surface of the main roll which is rotationally driven, and an outer peripheral surface of the mandrel which is rotatable. This ring rolling mill further includes a mandrel inclining/supporting mechanism which inclines and supports the mandrel with respect to the axis of rotation of the main roll such that the gap between the outer peripheral surface of the mandrel and the outer peripheral surface of the main roll differs on one side and on the other side as seen in a direction along the axis of rotation of the main roll.