Compressive Torsion Forming with Hydraulic Thrust Load Sharing
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Solution Overview
Problem
Existing compressive torsion forming devices face limitations in increasing applied pressure due to the structural inability of rotational bearings to withstand high pressures, leading to restricted processing capabilities.
Innovation Solution
The introduction of a second hydraulic chamber that communicates with the first hydraulic chamber to share thrust loads, reducing the burden on the rotational bearing, and the use of a rotating mechanism with a turning bearing with external teeth to manage loads and prevent anti-thrust load generation, allowing for increased applied pressure while minimizing damage to the rotational bearing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If the applied pressure to the processing material is increased, then the processing capability is improved, but the thrust load on the rotational bearing increases beyond its structural capacity
Solution Approach 1:
A thrust bearing is introduced as an intermediary component between the lower die and the rotating table to specifically bear the thrust load generated during high-pressure torsion processing. This allows the rotational bearing to focus on rotation while the thrust bearing handles the axial load, enabling higher applied pressures without overloading the rotational bearing.
Solution Approach 2:
A hydraulic system with a hydraulic cylinder and hydraulic chamber is employed to generate and control the high applied pressure. The hydraulic system provides the necessary force for high-pressure processing while the thrust bearing supports the resulting thrust load, decoupling the pressure generation function from the rotation support function.
2Ease of operation
If a rotational bearing is used to support the rotating table, then the rotation function is achieved, but the device cannot withstand large applied pressures due to structural limitations
Solution Approach 1:
The support function is segmented into two distinct components: the rotational bearing that handles rotation and the thrust bearing that handles axial loads. This segmentation allows each component to be optimized for its specific function, enabling the system to operate at higher pressures without compromising rotational capability.
Solution Approach 2:
The thrust bearing acts as an intermediary that absorbs the thrust load before it reaches the rotational bearing. This protective intermediary allows the rotational bearing to operate within its structural limits while still enabling high-pressure processing through the thrust bearing's load-bearing capacity.
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 configuration enables the application of higher processing pressures with reduced thrust loads on the rotational bearing, enhancing the device's ability to perform compressive and torsional deformation effectively, and improving the lubricity and space utilization of the rotational bearing.
Implementation Method 1
a first hydraulic chamber; and a sliding portion that slides in accordance with a change in internal pressure of the first hydraulic chamber so as to move the first die in a direction of an axis
Implementation Method 2
a second hydraulic chamber that is provided between the rotating table and the table support portion and communicates with the first hydraulic chamber
Data Source
AI summary
A compressive torsion forming device for processing a processing material using a first die and a second die facing each other includes a sliding portion that includes a first hydraulic chamber, and slides in accordance with a change in internal pressure of the first hydraulic chamber so as to move the first die in a direction of an axis; a rotating table provided with the second die and rotatable about the axis; a table support portion provided opposite to the second die with the rotating table interposed therebetween in the direction of the axis; and a rotational bearing that rotatably supports the rotating table with respect to the table support portion, and receives a force acting on the rotating table in a direction from the second die toward the rotating table.