Modular 3D Seal Assembly for High-Misalignment Repair Access
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional 3D seal assemblies are complex, customized, and difficult to repair or replace without complete disassembly, often requiring specialized equipment.
Innovation Solution
A 3D seal assembly design featuring a rotating subassembly with a sleeve, collar, and elastomeric components, a stationary subassembly with an inboard housing and annular lip seal, and a retention plate for compression, along with a bearing to allow rotation and maintain positional alignment, and a bearing isolator to prevent debris and fluid fouling, enabling easy access for maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional 3D seal assemblies are designed with complex customized structures, then sealing performance and reliability are improved, but ease of repair and device complexity deteriorate
Solution Approach 1:
The seal assembly is divided into distinct modular components including a stationary subassembly, rotating subassembly, lip seal assembly, and bearing isolator. Each module can be independently accessed, inspected, and replaced. The lip seal assembly specifically can be serviced by removing only the retention plate and seal elements without disassembling the entire assembly, enabling targeted maintenance while preserving overall sealing integrity.
2Reliability
If conventional 3D seal assemblies are designed with complex customized structures, then sealing performance and reliability are improved, but device complexity increases
Solution Approach 1:
The seal assembly design incorporates universal features that allow a single standardized configuration to serve multiple sealing applications. The modular architecture with standardized interfaces between the stationary subassembly, rotating subassembly, and lip seal assembly enables the same basic design to be adapted to different sealing requirements without customizing entire assemblies, thereby reducing overall device complexity while maintaining reliability.
3Reliability
If conventional 3D seal assemblies require complete disassembly for repair, then sealing integrity is maintained, but loss of time and productivity deteriorate
Solution Approach 1:
The lip seal assembly is designed to be extractable as a separate serviceable unit. The retention plate and seal elements can be removed independently from the main assembly, allowing technicians to inspect, replace, or repair only the sealing components without disturbing the bearing, housings, or other assembly elements. This extraction capability maintains sealing integrity through proper reassembly while dramatically reducing maintenance time.
4Manufacturing precision
If conventional 3D seal assemblies require specialized equipment for repair, then precision is maintained, but ease of operation and productivity deteriorate
Solution Approach 1:
The assembly incorporates pre-configured alignment features, standardized interfaces, and self-aligning components that ensure proper positioning during reassembly without requiring specialized alignment equipment. The modular design includes built-in registration mechanisms and tolerance-compensating features that maintain precision through straightforward manual assembly procedures, eliminating the need for specialized tooling while preserving alignment accuracy.
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
Facilitates easy installation, replacement, and repair of 3D seals without disassembling the entire assembly, reducing maintenance complexity and equipment requirements.
Implementation Method 1
A bearing is provided to allow rotation between the rotating sub-assembly and the stationary sub-assembly, while specifically maintaining the positional relationship between the rotating components and the stationary components
Implementation Method 2
The elastomeric element within the lip seal assembly is comprised of a radial contacted section that creates the static seal, and an axial section, that is common to the rotating running surface to create the dynamic seal
Implementation Method 3
A retention plate is coupled to the housing with a compression fastener and applies compression to the lip seal assembly
Data Source
AI summary
A 3D seal assembly is provided. The 3D seal assembly includes a rotational assembly and a stationary assembly for high misalignment operating environments. The rotational assembly includes a sleeve and a collar coupled together. The stationary assembly includes a housing with a recess on a radially inward side of the housing. A lip seal assembly, sized to fit within the recess, comprises at least one elastomeric seal element and spacer. At least one elastomeric seal element has a radially extending portion that engages the stationary assembly housing and an axially extending portion that engages with a running surface on the radially outer surface of the rotational assembly. A retention plate is coupled to the stationary assembly housing with a compression fastener. The assembly using compression fasteners allows for field disassembly and repair.