Turbocompressor Gear Casing Segmentation for Assembly Simplification
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Solution Overview
Problem
The manufacturing process of turbocompressors is complicated due to the need for precise alignment and positioning of gears, which requires intricate machining and assembly, increasing labor and costs.
Innovation Solution
The turbocompressor design features independent formation of the drive part casing, impeller casing, and gear casing, allowing for easier alignment and assembly, with threaded members and a circular seal member facilitating the coupling of these components, enabling the positioning structures to be wrought from one side, simplifying the manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the impeller casing is formed as a single integrated component with both the supporting portion and positioning structure, then the structural integrity is improved, but the manufacturing complexity increases due to the need for intricate machining from multiple sides
Solution Approach 1:
The impeller casing is divided into two separate components: a first impeller casing and a second impeller casing. The supporting portion is formed on the first impeller casing, while the positioning structure is formed on the second impeller casing. This segmentation allows each component to be manufactured independently with simpler machining processes, avoiding the need for complex multi-side machining of a single integrated casing.
2Reliability
If the entire length of the impeller casing is increased to accommodate both the supporting portion and positioning structure on opposite sides, then the functional requirements are met, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
By segmenting the impeller casing into two separate casings, the functional requirements are met without increasing the overall device complexity. Each casing can be manufactured with a more compact and simpler geometry, and the two casings are subsequently assembled together to form the complete impeller casing assembly.
3Reliability
If the supporting portion and positioning structure are disposed on opposite sides of the impeller casing, then the gear rotation smoothness is improved, but the machining process becomes more complicated requiring inversion and multiple positioning steps
Solution Approach 1:
The supporting portion is formed on the first impeller casing and the positioning structure is formed on the second impeller casing. This segmentation allows both structures to be machined independently on convenient sides of their respective casings, eliminating the need for complex inversion and repositioning operations that would be required if both structures were on opposite sides of a single integrated casing.
Solution Approach 2:
The separation of the supporting portion and positioning structure into different casings acts as an intermediary solution, allowing each structure to be optimized for its specific function while simplifying the manufacturing process. The two casings are then assembled together to achieve the desired gear rotation smoothness.
4Volume of moving object
If the impeller casing is made larger to accommodate all components, then the assembly space is improved, but the manufacturing cost and labor increase
Solution Approach 1:
Dividing the impeller casing into two separate casings allows for more efficient use of space. Each casing can be manufactured with a compact size optimized for its specific components, reducing the overall material usage and manufacturing cost compared to a single large integrated casing.
Data Source
AI summary
Provided is a turbocompressor (4) having a drive part (12) generating rotational power, an impeller (22a) to which the rotational power of the drive part (12) is transmitted to rotate, a plurality of gears (31, 32) transmitting the rotational power of the drive part (12) to the impeller (22a), and a drive part casing (13) in which the drive part (12) is installed. This turbocompressor (4) includes an impeller casing (22e) installed around the impeller (22a), and a gear casing (33) configured to be formed independently of the impeller casing (22e) and the drive part casing (13), to couple the impeller casing (22e) and the drive part casing (13), and to form an accommodation space (33a) in which the plurality of gears (31, 32) are accommodated. With this configuration, in manufacturing the turbocompressor, a working process can be simplified and working labor and cost can be reduced.