Spring-Mounted Chain Wheel Protrusions for Wear Compensation
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Solution Overview
Problem
Current chain transmissions experience wear and slippage due to uneven wear patterns between chain links and protrusions, leading to inconsistent force distribution and potential chain detachment from the wheel.
Innovation Solution
The chain wheel features independently spring-mounted protrusions that adjust to the pitch of the chain links, ensuring uniform force distribution through resilient arms and spring elements, allowing for self-adjustment and maintenance without replacing the entire wheel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the chain wheel and chain are used to transmit great forces, then the force transmission capability is improved, but wear to both the chain and chain wheel increases
Solution Approach 1:
The chain wheel is segmented into a body and multiple independently spring-mounted protrusions. This segmentation allows each protrusion to independently adjust to wear patterns on individual chain links, distributing the wear more evenly across all protrusions and preventing the concentration of stress that leads to rapid wear and failure.
Solution Approach 2:
The protrusions are made dynamically adjustable through spring mounting, allowing them to move independently relative to the chain links. This dynamic adjustment compensates for wear by maintaining optimal contact between protrusions and chain links, thereby reducing further wear and improving reliability under high force conditions.
2Duration of action of moving object
If the chain links and protrusions wear unevenly over time, then the pitch between links and protrusions becomes inconsistent, but this leads to increased force on some protrusions and links
Solution Approach 1:
By segmenting the chain wheel into independently mounted protrusions, each protrusion can adjust its position to accommodate wear variations in individual chain links. This prevents the propagation of uneven wear patterns and maintains uniform force distribution across all contact points throughout the service life of the chain transmission.
Solution Approach 2:
The spring-mounted protrusions automatically adjust themselves to the wear patterns of the chain links without external intervention. This self-adjusting mechanism compensates for pitch discrepancies caused by wear, maintaining uniform force distribution and preventing premature failure.
3Device complexity
If the protrusions are fixed to the body, then the structure is simpler, but the entire chain wheel must be replaced when protrusions wear
Solution Approach 1:
The chain wheel is designed with releasably connected protrusions that can be detached from the body. This segmentation allows individual worn protrusions to be replaced without replacing the entire chain wheel, significantly reducing maintenance costs and complexity while keeping the overall structure relatively simple.
Solution Approach 2:
The design allows worn protrusions to be discarded and replaced individually while retaining the reusable body and other intact protrusions. This selective replacement approach reduces waste and maintenance costs compared to replacing the entire chain wheel assembly.
4Duration of action of moving object
If the chain becomes longer due to wear, then the pitch between links increases, but this causes the chain to spring off the chain wheel
Solution Approach 1:
The spring-mounted protrusions provide dynamic adjustment capability that compensates for chain elongation. As the chain wears and lengthens, the protrusions can move independently to maintain proper engagement with the chain links, preventing the chain from springing off the wheel and ensuring reliable operation over extended periods.
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
This design reduces wear on both the chain links and protrusions, maintains consistent force transmission, and prevents chain detachment, enhancing the reliability and longevity of the chain transmission system.
Implementation Method 1
the protrusions are spring-mounted independently of each other in a peripheral direction relative to the body
Implementation Method 2
the protrusions produce sufficient reactive force by means of spring force in order to transmit the great active force of a drive member on the chain wheel to the chain
Data Source
AI summary
A chain wheel includes a body and protrusions extending outward along the periphery of the body for receiving links of a chain. The protrusions are connected releasably to the body and are spring-mounted independently of each other in a peripheral direction relative to the body.