Sealing Assembly with Embedded Support Ring for Track Hinges
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Sealing assemblies for track pivot pin hinges experience premature failures due to undefined relative movements between elastic and support rings, leading to excessive wear and reduced service life.
Innovation Solution
A sealing assembly with a fixedly connected elastic ring and support ring, where the support ring is partially embedded in the elastic ring, and both are designed to absorb pivoting movements, reducing wear by transferring movement between axially-extending contact surfaces and minimizing direct contact, thereby increasing the service life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the elastic ring and support ring are not fixedly connected, then the sealing assembly allows relative movement between components, but this leads to undefined relative movements and excessive wear reducing service life
Solution Approach 1:
The elastic ring and support ring are fixedly connected to each other, merging their functions into a single integrated unit. This eliminates undefined relative movements between the rings while maintaining sealing functionality, thereby extending service life without significantly increasing complexity.
2Stability of the object's composition
If the support ring is not embedded in the elastic ring, then the support ring provides structural support, but it lacks stability and is prone to premature failure
Solution Approach 1:
The support ring is embedded within the elastic ring, with the bent segment of the support ring partially surrounded by the elastic ring material. This nesting arrangement stabilizes the support ring to prevent premature failure while maintaining ease of assembly through a straightforward embedding process.
3Adaptability or versatility
If the sealing assembly allows full pivoting movement, then it accommodates track movement, but this causes excessive wear on the sealing elements
Solution Approach 1:
The sealing assembly is designed to absorb only a portion of the pivoting movement through the fixedly connected and embedded ring structure, rather than allowing full movement. This partial action approach reduces wear on sealing elements while still accommodating necessary track movement, thereby improving wear resistance.
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 design significantly extends the service life of the sealing assembly by reducing wear on the elastic ring and stabilizing the support ring, ensuring a longer operational lifespan by distributing the pivoting movement effectively and protecting against moisture and dirt ingress.
Implementation Method 1
an elastic ring (3) having a radially-encircling or annular sealing lip (5) configured to fixedly (statically) and sealingly abut on the first part of the track
Implementation Method 2
both are designed to absorb pivoting movements, reducing wear by transferring movement between axially-extending contact surfaces
Data Source
AI summary
A sealing assembly provides a seal between first and second parts that are movable relative to each other. The sealing assembly comprises an elastic ring having an annular sealing lip configured to fixedly and sealingly abut on the first part. A sealing ring includes a sealing edge configured to sealingly abut on a sliding surface of the second part. A supporting ring is fixedly connected with the elastic ring and is inserted between the elastic ring and the sealing ring.