Wheel Rolling and Extrusion for Lightweight Fatigue-Resistant Rims
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Solution Overview
Problem
The automotive industry faces challenges in creating lightweight wheels that meet both structural and aesthetic standards while maintaining durability, particularly in reducing bending and radial fatigue, and effectively strengthening critical components like bolt holes and valve holes.
Innovation Solution
A wheel rolling device incorporating a complex system of servo motors, cylinders, rollers, and gears that simultaneously rolls and extrudes the center hole, inner and outer rims, flange roots, and strengthens bolt holes and valve holes, ensuring high automation, versatility, and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the wheel is designed to be lightweight, then fuel economy is improved, but the bending and radial fatigue lives of the wheel are reduced
Solution Approach 1:
The patent applies localized strengthening treatments (rolling and extrusion) to specific critical areas of the wheel such as the center hole, inner and outer rims, flange root, bolt holes, and valve holes. This allows the wheel to maintain lightweight overall design while providing enhanced strength and fatigue resistance at the most stressed locations where failures typically occur.
Solution Approach 2:
The wheel undergoes preliminary strengthening treatments (rolling and extrusion processes) during manufacturing before service. These treatments pre-enhance the critical structures of the wheel, creating compressive residual stresses and work-hardened surfaces that improve bending and radial fatigue lives before the wheel is put into use, allowing lightweight design without compromising durability.
2Weight of moving object
If the wheel is designed to be lightweight, then fuel economy is improved, but the appearance and structure standards are harder to meet
Solution Approach 1:
The strengthening treatments are applied locally to specific critical areas rather than the entire wheel, allowing precise control over which regions receive enhanced treatment. This enables meeting appearance and structure standards in non-critical areas while applying strength enhancements only where mechanically necessary, maintaining aesthetic standards alongside lightweight design requirements.
3Strength
If multiple strengthening operations are performed on the wheel, then the structural components are strengthened, but the device complexity increases
Solution Approach 1:
The patent combines multiple strengthening operations (rolling and extrusion) into a single integrated device that can perform both operations on the wheel simultaneously or in sequence. The device includes rolling mechanisms for the center hole, inner and outer rims, flange root, and extrusion mechanisms for bolt holes and valve holes, all coordinated through a unified control system, thereby reducing overall system complexity compared to separate independent operations.
Solution Approach 2:
The rolling device is designed as a multi-functional system that can perform multiple strengthening operations on different parts of the wheel using a single apparatus. The device includes adjustable rolling and extrusion mechanisms that can be positioned and configured to treat various critical areas of different wheel designs, making the complex device universally applicable to multiple wheel types and strengthening requirements.
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 device effectively strengthens the wheel's structural components through rolling and extrusion, enhancing durability while maintaining lightweight design, achieving high automation, powerful functionality, and advanced technology with safe and stable performance.
Implementation Method 1
two of the lifting cylinders and four of the guiding sleeves are fixed on the lower fixing plate; output end of the lifting cylinder is hinged with lower part of the lower lifting plate
Implementation Method 2
the first servo motor is fixed below the lower lifting plate, and output end thereof is connected with the rotating plate; the third servo motor is fixed below the left bracket, and output end thereof is connected with lower part of the first shaft
Implementation Method 3
the first roller is fixed above the second shaft... the first roller may roll lower part of central hole, back cavity of spoke and inner rim of the wheel
Implementation Method 4
The device effectively strengthens the wheel's structural components through rolling and extrusion, enhancing durability
Implementation Method 5
the second bevel gear is fixed below the second shaft, and the second bevel gear is meshed with the first bevel gear
Implementation Method 6
the left bottom plate is fixed on left side above the rotating plate through the first guiding rail; four of the guiding pillars matched with the guiding sleeves are also fixed below the lower lifting plate
Data Source
AI summary
The present application relates to a wheel rolling device, which is composed of a lower lifting rotating system, first rolling systems, a synchronous clamping drive system, a second rolling system and a third rolling system. The present application may not only strengthen the center hole, the inner and outer rims, the upper and lower rims, the flange root and the like portion of the wheel by rolling, but also may strengthen the bolt holes and valve holes of the wheel by extrusion; at the same time, the present application has the characteristics of high automation, powerful function, advanced technology, strong versatility and safe and stable performance.