Split Seal Device Mounting via Housing Taper
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Solution Overview
Problem
Traditional seal devices made from rubber are prone to damage and wear, requiring frequent replacement and are costly when replaced with more durable materials, while existing solutions for split seal rings are either expensive or overly complex.
Innovation Solution
A method for mounting a split seal device on a shaft-like object using a taper in a through hole of a housing, allowing the seal to expand without lengthening, facilitating secure sealing without damaging the material, and utilizing materials with a Young's modulus of 0.2-200 GPa for resilience and cost-effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional rubber seal rings are used, then the seal device can be mounted easily on equipment, but the seal ring is easily damaged and becomes brittle from exposure to extreme environments, requiring frequent replacement
Solution Approach 1:
The seal ring is divided into two separate halves that can be mounted independently on the shaft-like object. This segmentation allows each half to be installed without overextending the material, enabling the use of more durable materials while maintaining ease of mounting. The split design facilitates installation by allowing the seal to be opened and placed around the shaft without requiring the material to stretch beyond its elastic limits.
2Reliability
If more durable materials with highly elastic properties are used to replace rubber seals, then the seal durability is improved, but the cost increases up to 100 times compared to traditional seal devices
Solution Approach 1:
By dividing the seal into two halves, the invention enables the use of durable materials without incurring excessive costs. The segmentation allows for simpler installation procedures and reduces the need for expensive specialized materials, as the seal can be installed without overextending. This approach makes durable seal materials economically viable by simplifying the mounting process and reducing installation complexity.
3Ease of manufacture
If split seal rings are used to prevent overextending the flexible material, then the mounting is improved, but the construction becomes complicated as shown in US 5,403,020 and US 4,576,384
Solution Approach 1:
The seal is divided into two simple halves that can be mounted on the shaft-like object in a straightforward manner. This segmentation provides a simple and effective solution to prevent overextending the material during installation, while avoiding the complicated constructions shown in prior art patents. The basic split design allows for easy mounting without requiring complex additional components or mechanisms.
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 provides a cost-effective, durable, and easy-to-mount seal that effectively prevents leakage in equipment, suitable for various environments and locations, while maintaining the seal's integrity and reducing the need for frequent replacements.
Implementation Method 1
the seal device is slit and that slit has the function of expanding without substantially lengthening the seal device
Data Source
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AI summary
The present invention relates to a method for sealingly mounting a shaft-like object (2), the method comprising the steps of providing a housing (3 a) with a through hole (17) - providing at least one shaft-like object (2) with at least one groove (10a, 10b), providing at least one seal device (1) suitable for placement in said at least one groove (10a, 10b), and placing said at least one seal device (1) in said at least one groove (10a, 10b) and inserting said at least one shaft-like object (2) into said through hole (IV), wherein at least one taper (12, 13) is provided in connection with said housing (3a), and said at least one seal device (1) placed in said at least one groove (10a, 10b) passes said at least one taper (12, 13) during insertion and a sealing function between said housing (3a) and said at least one shaft-like object (2) is achieved, and that the seal device (1) is slit and that said slit (Ia) has the function of expanding without substantially lengthening said seal device (1) before positioning in said groove (10a, 10b) by any method suitable, for instance by axial or radial mounting.