Connecting Device for Internal Plasma Spraying Radius Adjustment
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Solution Overview
Problem
The rotary internal plasma spraying system faces challenges with fixed rotation radius and spray distance limitations, leading to suboptimal coating quality due to insufficient heating and acceleration of powder, and complex spray gun replacement processes in varying bore sizes.
Innovation Solution
A connecting device with a balance adjusting assembly, rotation radius adjusting assembly, driving assembly, and docking assembly allows for flexible adjustment of spray gun rotation radius and quick, reliable connection, enabling precise control of spray distance and easy spray gun replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the spray gun is fixed at a fixed rotation radius to simplify the system structure, then the device complexity is reduced, but the adaptability to different bore sizes is limited and the coating quality cannot be optimized for varying dimensions
Solution Approach 1:
The patent implements a movable platform that can adjust the rotation radius of the spray gun along the radial direction of the workpiece. This dynamic adjustment capability allows the system to adapt to different bore sizes by changing the rotation radius, thereby resolving the contradiction between fixed structure simplicity and adaptability to varying dimensions.
2Productivity
If the spray distance is reduced to fit smaller bore diameters, then the productivity is improved by completing spraying faster, but the manufacturing precision deteriorates due to insufficient powder heating and acceleration
Solution Approach 1:
The movable platform enables dynamic adjustment of the spray distance according to different bore diameters. For smaller bores, the spray distance can be reduced to maintain productivity, while for larger bores, the spray distance can be increased to ensure adequate powder heating and acceleration, thus achieving both high productivity and manufacturing precision across different workpiece sizes.
Solution Approach 2:
The system allows changing the spray distance parameter based on the bore diameter. By adjusting this critical parameter, the system optimizes the balance between heating time (affecting coating quality) and spraying speed (affecting productivity) for different workpiece dimensions.
3Ease of operation
If the spray gun is quickly replaceable to improve ease of operation, then the ease of operation is improved, but the reliability may deteriorate due to potential connection issues
Solution Approach 1:
The system divides the spray gun assembly into separable components with standardized quick-connect interfaces. This segmentation allows rapid replacement of spray guns while maintaining reliable connections through standardized coupling mechanisms, thus achieving both ease of operation and connection reliability.
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
The solution ensures stable and flexible operation of the spray gun during high-speed rotation, improving coating quality by allowing adjustable spray distance and simplifying the replacement process across different bore sizes.
Implementation Method 1
The driving assembly includes a screw assembly, which is configured to drive the slide block and the slide seat to move synchronously toward or away from each other
Implementation Method 2
the plasma beam generated by the spray gun is perpendicular to the axis of the bore, and the powder is heated and accelerated in a very short time
Data Source
AI summary
A connecting device is configured to connect a spray gun and a spray device. The connecting device includes a balance adjusting assembly, a rotation radius adjusting assembly, a driving assembly and a docking assembly. The balance adjusting assembly includes a fixing plate and a slide block configured to slide in a dovetail groove of the fixing plate. The rotation radius adjusting assembly includes a slide seat slidably connected with the balance adjusting assembly. The driving assembly includes a screw assembly configured to drive the slide block and the slide seat to move synchronously toward or away from each other. The docking assembly is detachably connected with the rotation radius adjusting assembly and connected to the spray gun.