Tire Post-Inflation Pressing Assembly for Smaller Lift Cylinders
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Solution Overview
Problem
Existing tire post-inflation devices require large oil cylinders for pressing, leading to volume inefficiencies and potential oil or air leakage, which reduces the practical life of the lifting drive cylinder.
Innovation Solution
A tire post-inflation device with a pressing assembly that includes a pressing rod and drive assembly, allowing for precise control of the lifting rod's position using a smaller lifting drive cylinder, reducing pressure requirements and minimizing leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a large-sized oil cylinder is used for pressing during tire inflation, then the pressing force can be maintained, but the device volume increases and oil leakage occurs
Solution Approach 1:
The pressing function is divided into two independent parts: a pressing assembly with a pressing rod that applies downward force, and a lifting drive cylinder that only provides upward lifting force. This segmentation allows the lifting drive cylinder to be smaller since it doesn't need to provide both lifting and pressing forces simultaneously.
Solution Approach 2:
The pressing rod acts as an intermediary component that transfers and amplifies the pressing force. The drive assembly (motor + transmission mechanism) serves as an intermediary to convert rotational motion into linear pressing motion, enabling the system to achieve high pressing force without requiring a large lifting drive cylinder.
2Force
If a large-sized oil cylinder is used for pressing during tire inflation, then the pressing force can be maintained, but oil leakage occurs reducing practical life
Solution Approach 1:
By separating the pressing function from the lifting drive cylinder, the system eliminates the need for the cylinder to withstand high pressing forces, reducing stress on the cylinder and minimizing the risk of oil leakage and extending service life.
Solution Approach 2:
The pressing function is replaced from a hydraulic/mechanical system (large oil cylinder) to a drive assembly system (motor + transmission mechanism), which provides pressing force through mechanical transmission rather than hydraulic pressure, thereby eliminating oil leakage issues.
3Force
If a large-sized oil cylinder is used for pressing during tire inflation, then the pressing force can be maintained, but the device complexity increases
Solution Approach 1:
The device is segmented into modular components (pressing assembly, lifting assembly, drive assembly) that can be independently designed and maintained. This modularity actually reduces overall system complexity by allowing each component to be optimized separately rather than requiring a single large complex cylinder.
Data Source
AI summary
Provided is a tire post-inflation device. The tire post-inflation device includes a framework, a lifting rod, a chuck assembly, lifting drive cylinders, and a pressing assembly. The lifting rod is disposed on the framework. The chuck assembly is connected to the lower end of the lifting rod. The chuck assembly is formed with an inflation port for inflating a tire. The lifting drive cylinders are disposed on two sides of the lifting rod. The lifting drive cylinders are configured to drive the lifting rod to move up and down. The pressing assembly is disposed on the framework. The pressing assembly includes a pressing rod and a drive assembly. The drive assembly is configured to drive the pressing rod to press the lifting rod that is lowered into place.