Filter Insert Bearing Device for Shaft Alignment
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Solution Overview
Problem
The storage of long central shafts in filter or reactor devices is challenging due to the instability of the plastic tubular housing, which can lead to alignment issues and difficulties in storing the shaft within the housing, especially when multiple elements are arranged one behind the other.
Innovation Solution
A filter or reactor insert with a rotatably mounted central shaft, equipped with a bearing device that includes support and clamping elements to securely hold the shaft within a conventional tubular housing, allowing for stable storage and alignment through radial and axial fixation, using clamping elements that can be actuated externally to secure the bearing device inside the tube.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a large number of filter or reactor elements are arranged one behind the other on a common shaft, then the filtering or reacting capacity is improved, but the overall length of the filter or reactor insert becomes large, making storage of the shaft inside the housing difficult
Solution Approach 1:
The shaft is divided into multiple shaft sections that can be stored in a folded or collapsed configuration within the housing. During operation, these sections are extended and connected to form the full-length shaft required for high-capacity filtering or reacting. This segmentation allows the system to achieve both high productivity (when fully extended) and easy storage (when collapsed).
Solution Approach 2:
The shaft sections are designed to nest within each other during storage, similar to a telescopic structure. The inner shaft sections fit within outer sections, allowing the entire shaft assembly to be compacted to a small size for storage within the housing, while still providing the necessary length when deployed for operation.
2Ease of manufacture
If the housing is formed by a relatively unstable plastic tube, then manufacturing cost and ease of assembly are improved, but the ability to securely store and align the long shaft becomes problematic
Solution Approach 1:
A bearing device is introduced as an intermediary component between the plastic tube housing and the shaft. This bearing device provides the necessary structural support and alignment for the shaft, compensating for the instability of the plastic tube. The bearing device can be secured to the tube via clamping elements, creating a stable mounting structure without requiring the tube itself to be structurally rigid.
Solution Approach 2:
The system changes the structural parameters of the support system by moving from relying on the tube's inherent rigidity to using a separate bearing device with appropriate mechanical properties. The bearing device can be made from materials and designs that provide the necessary stiffness and precision for shaft support, while the plastic tube maintains its advantages of ease of manufacture and assembly.
3Stability of the object's composition
If a bearing device with support and clamping elements is added to securely hold the shaft, then shaft storage stability is improved, but device complexity increases
Solution Approach 1:
The bearing device is designed to perform multiple functions: supporting the shaft during operation, securing the shaft during storage, and providing alignment. The clamping elements serve dual purposes of both securing the bearing device to the tube and providing adjustable positioning. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity while achieving improved stability.
Data Source
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AI summary
The filter or reactor insert has a filter or reactor element (2) mounted on a rotatable central shaft (4), and a bearing device (20) with a bearing that is located in a central region of the bearing device. The shaft is rotatably supported in the bearing, and a supporting element is spaced radially outward from the bearing and connected to the bearing by a connecting element. A tensioning element braces the supporting inside a pipe that receives the insert against inside walls of the pipe.