Gas-Flotation Ring Balancing with Adjustable Dual Support
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Solution Overview
Problem
Existing gas-flotation static balancing devices for rotating ring-shaped parts are limited in balancing wide parts, lack adjustable levelness, have restricted axial positioning, and are unsuitable for heavy parts due to reduced strength and stiffness.
Innovation Solution
An inner-support and gas-flotation static balancing device with a gas-flotation chamber, end cover, support base, and axial positioning mechanisms, featuring a double-supporting mode, adjustable levelness, and dispersed cylindrical gas inlet channels to improve balance precision and adaptability for parts of varying widths and weights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single supporting mode is adopted in gas-flotation support device, then the structure is simple, but the device can only balance short-width parts and cannot adjust levelness
Solution Approach 1:
The gas-flotation support device is divided into two independent supporting structures: a first supporting structure for providing upward support force and a second supporting structure for providing side support force. This segmentation allows each structure to specialize in its function, enabling the device to handle parts of various widths while maintaining structural clarity and avoiding excessive complexity.
Solution Approach 2:
The patent transitions from a single supporting mode to a dual-mode supporting system that operates in different spatial dimensions. The first supporting structure operates vertically (upward support), while the second supporting structure operates horizontally (side support). This dimensional expansion enables the device to accommodate parts of varying widths and achieve levelness adjustment.
2Device complexity
If an integral working gas cavity is used in gas-flotation support structure, then the structure is simple, but the strength and stiffness are greatly reduced
Solution Approach 1:
The integral working gas cavity is divided into multiple separate working gas cavities, each corresponding to different regions of the support structure. This segmentation allows each cavity to be optimized for its specific location, maintaining structural strength and stiffness while still providing the necessary gas-flotation function. The multiple cavities work together to support the part without compromising overall structural integrity.
3Device complexity
If gas-flotation support device with single supporting mode is used, then the device structure is simple, but axial positioning range is limited
Solution Approach 1:
The patent incorporates adjustable axial positioning mechanisms that can dynamically adapt to parts of different lengths. The first and second supporting structures can be independently adjusted along the axial direction, allowing the device to accommodate a wide range of part widths. This dynamic adjustability extends the axial positioning range while maintaining a relatively simple overall structure.
4Adaptability or versatility
If existing static balancing device is used for rotating ring-shaped part, then the device can be used with rotors and shaft sleeves, but balancing precision is seriously reduced due to unbalanced masses and friction torque
Solution Approach 1:
The patent employs gas-flotation technology to replace traditional mechanical contact-based supporting methods. By using gas pressure to support the rotating ring-shaped part, the device eliminates direct mechanical contact, thereby reducing friction torque significantly. This pneumatic approach maintains versatility in handling different rotor and shaft sleeve configurations while achieving high balancing precision through minimal friction interference.
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 device enables precise static balancing of both short and long-width rotating ring-shaped parts with reduced friction torque, improved strength, and adaptability for heavy parts, enhancing the universality and efficiency of the balancing process.
Implementation Method 1
forming a gas film with bearing capacity between the working surface (1-1) of the gas-flotation chamber (1) and an inner surface of the rotating ring-shaped part through the working gas cavity (1-2) and the gas inlet holes (1-4) by external gas supply, so as to enable the rotating ring-shaped part to float
Data Source
AI summary
An inner-support and gas-flotation static balancing device for a rotating ring-shaped part and a method of using the same are provided. A bottom end of an end cover is rotatably connected to a top end of a support base. One end, which is away from a working gas cavity, of the gas-flotation chamber is connected to a disc seat through a supporting column. The levelness of the gas-flotation chamber may be adjusted through the supporting column. Two axial positioning mechanisms are respectively mounted on two sides of the gas-flotation chamber in an axis direction. Gas supplied by external air supply may enter the working gas cavity, the cylindrical gas inlet channels, and the gas inlet holes through the gas supply hole, so as to form an gas film with certain bearing capacity between the working surface and the inner surface of the rotating ring-shaped part.