Segmented Cylinder Shaft for Comber Rotation Balance
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Solution Overview
Problem
The existing comber designs face issues with the length of the cylinder shaft, which requires a special lathe for processing and causes variations in rotation balance and increased vibrations due to the placement of the joint and coupler between combing heads.
Innovation Solution
The cylinder shaft is divided into multiple shaft portions with a joint located between the brackets, allowing integral rotation without lengthening the shaft and maintaining balanced rotation among combing heads, using brackets, circular combs, and counterweights as couplers to eliminate the need for a dedicated coupler.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the cylinder shaft is divided into multiple portions and the joint is arranged between adjacent combing heads, then the cylinder shaft can be processed on a general lathe, but the cylinder shaft needs to be lengthened to provide space for the coupler, which is disadvantageous when increasing the operation speed of the comber
Solution Approach 1:
The joint is repositioned from the radial direction (between combing heads) to the axial direction (at the end of the cylinder shaft), changing the spatial dimension of the coupling arrangement. This allows the shaft to be divided into portions without requiring additional radial space, avoiding shaft lengthening while maintaining manufacturability.
Solution Approach 2:
The cylinder shaft is divided into a first shaft portion and a second shaft portion, which are coupled together at the end of the shaft. This segmentation allows the shaft to be manufactured on a general lathe while maintaining a compact overall structure that does not require lengthening.
2Length of moving object
If the joint of the cylinder shaft and the coupler are arranged in a position that faces a combing portion, then the cylinder shaft can be divided without lengthening, but the coupler arranged between the brackets interferes with the counterweight, causing variation in rotation balance and increased vibrations
Solution Approach 1:
The coupling function is extracted from the intermediate position between brackets and relocated to the end of the cylinder shaft. This removes the interfering element (coupler) from the space between brackets where it would conflict with the counterweight, thereby maintaining rotation balance and reducing vibrations.
Solution Approach 2:
The end of the cylinder shaft serves as an intermediary location for the joint, providing a suitable position that does not interfere with the counterweight while still allowing the shaft to be divided into portions. This mediator position resolves the conflict between shaft division and rotation balance.
3Device complexity
If a single undivided cylinder shaft is used, then the structure is simple, but the shaft is too long to process on a general lathe and requires a special lathe designed for long shafts
Solution Approach 1:
The cylinder shaft is segmented into a first shaft portion and a second shaft portion that are coupled together. Each portion can be manufactured separately on a general lathe, avoiding the need for special equipment while maintaining the functional integrity of the shaft.
Solution Approach 2:
The shaft transitions from a static, single-piece structure to a dynamic, multiportion structure that can be assembled from separately manufactured components. This allows standard manufacturing equipment to be used while maintaining structural functionality.
Data Source
Figure 1~2
Figure 3~5
AI summary
A comber includes a plurality of combing heads (11) each including a combing portion (15) and a cylinder shaft (24) adapted to rotate all of the combing portions (15). Each combing portion includes a plurality of brackets (28), which are fixed to the cylinder shaft (24) and rotatable integrally with the cylinder shaft (24), and a circular comb (29) and a counterweight (30), which are fixed to the cylinder shaft (24) by the brackets (28). The cylinder shaft (24) is divided in a longitudinal direction into a plurality of shaft portions (24a) such that a joint between the shaft portions (24a) is located in a position that faces one of the combing portions (15). The joint is located between the brackets (28).