Turret Device Sliding Pad Segmentation
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Solution Overview
Problem
Conventional turret device manufacturing involves excessive welding steps, leading to prolonged work times, defective precision, and reduced production efficiency due to the need for Inconel welling on the entire hull surface for strength, which complicates mechanical processing.
Innovation Solution
A turret device design featuring a lower bearing assembly with an independent sliding pad composed of slit plates and a bearing contact wall, where the slit plates are welded to the bearing contact wall with a dual-layer welding process using molybdenum-added stainless steel and stainless steel to prevent corrosion, reducing the number of welding steps and improving sliding contact surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If Inconel welling is performed on the entire surface of the inner wall of a hull that contacts the bearing, then the required strength is satisfied, but the work time is excessive and production efficiency is deteriorated
Solution Approach 1:
The patent divides the bearing contact surface into two separate components: the inner wall of the hull and an independent sliding pad. Only the sliding pad requires Inconel welling and grinding, while the inner wall does not. This segmentation reduces the total area requiring extensive welding and mechanical processing, thereby reducing work time while maintaining the required strength at the bearing contact interface.
2Strength
If Inconel welling is performed on the entire surface of the inner wall of a hull that contacts the bearing, then the required strength is satisfied, but the mechanical processing becomes difficult and production efficiency is deteriorated
Solution Approach 1:
The patent separates the bearing contact function into an independent sliding pad that is coupled to the inner wall. The sliding pad is the only component requiring Inconel welling and grinding processes. This segmentation confines the difficult mechanical processing to a small, replaceable component rather than the entire inner wall, significantly improving ease of manufacture.
3Force
If the inner wall of a hull contacting the bearing requires strength enough to endure a horizontal load, then the bearing can slide smoothly, but the manufacturing process becomes complex and time-consuming
Solution Approach 1:
The patent transfers the load-bearing and sliding functions to the independent sliding pad, which is specifically designed to endure horizontal loads during bearing sliding. The sliding pad receives Inconel welling and grinding only where necessary to maintain these forces, rather than treating the entire inner wall. This segmentation maintains force endurance while reducing manufacturing time.
4Manufacturing precision
If Inconel welling is performed on the entire surface, then the bearing contact surface is formed, but the welding precision becomes defective and work time increases
Solution Approach 1:
The patent concentrates the Inconel welling and grinding processes exclusively on the independent sliding pad, which has a much smaller surface area compared to the entire inner wall. This segmentation allows for better welding precision control on a confined area and reduces the total welding time significantly, while still providing the necessary bearing contact surface precision.
Data Source
AI summary
Disclosed is a turret device. The turret device according to one embodiment of the present invention includes an upper turret installed in a vertical opening which penetrates a hull; and a lower turret which is coupled to the bottom of the upper turret and has a lower bearing assembly which supports the hull to allow rotation, wherein a lower bearing is arranged on the outer surface of the lower turret; and an independent sliding pad is coupled to the inner surface of the hull forming the vertical opening, and slidably contacts the lower bearing in the shape of a plate.