Chain Assembly Outer Plate Accommodation Portions Dust Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional chain structures suffer from dust permeation due to gaps between outer plates and inner plate rims, leading to unsteady transmission and shortened service life.
Innovation Solution
The chain assembly features outer plates with accommodation portions that fully enclose inner plate rims and contact areas, enhancing structural strength and preventing dust entry through snug fitting, ensuring smooth transmission and extended service life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If peripheral flange covers annular rims to separate dust, then dust resistance is improved, but gaps remain between outer plate and inner plate rims causing dust permeation
Solution Approach 1:
The accommodation portion is designed to receive and nest the inner plate rim completely within the outer plate structure. The contact area fits snugly against the inner plate rim, creating a nested configuration that eliminates gaps and prevents dust permeation while maintaining structural integrity.
Solution Approach 2:
The peripheral flange is designed with a contact area that can adaptively conform to the inner plate rim surface. This flexible contact interface ensures complete coverage and sealing against dust entry, transforming the rigid flange structure into an adaptable dust barrier.
2Object-affected harmful factors
If peripheral flange encircles annular rims, then dust separation is achieved, but space remains for dust accumulation causing shortened service life
Solution Approach 1:
The harmful space between the outer plate and inner plate rims is completely eliminated by designing the accommodation portion to receive the inner plate rim. This extraction of the gap space removes the accumulation zone for dust, preventing the harmful effect of dust buildup that would otherwise shorten service life.
Solution Approach 2:
The accommodation portion is pre-designed with the exact geometry needed to receive and fully enclose the inner plate rim. This preliminary design ensures that when assembled, there is no residual space for dust accumulation, proactively preventing the service life reduction issue before it can occur.
3Ease of operation
If outer plate closely contacts inner plates, then transmission smoothness is improved, but structural strength may be compromised without proper positioning
Solution Approach 1:
The contact area is positioned asymmetrically relative to the outer plate structure, specifically located at the region where it contacts the inner plate rim. This asymmetric positioning optimizes the contact geometry for smooth transmission while the overall asymmetric configuration of the accommodation portion maintains structural strength.
Solution Approach 2:
The outer plate is designed with different local properties: the contact area provides smooth surface contact for frictionless transmission, while the accommodation portion provides structural enclosure. This local differentiation of quality allows the plate to simultaneously achieve smooth transmission and maintain structural integrity.
Data Source
AI summary
A chain assembly includes interconnected chain units each having two rollers, two bushings disposed through the rollers, two inner plates rotationally disposed on the bushings, and two pins penetrating the bushings and the inner plates. Two outer plates are rotationally fixed to respective pins between adjacent inner plates. Each inner plate has two inner pin holes, two rims projecting from one surface of the inner plate, and a contact area formed around the rims. Each outer plate has two outer pin holes, two accommodation portions protruding from one surface of the outer plate to provide two rooms formed into opposing surface thereof, and a positioning area formed around the rooms for fitting snugly with adjacent contact areas when the respective rims are completely covered by the rooms. Therefore, the structure strength is increased, the transmission is stable and smooth, and no entry and accumulation of dust is incurred.