Balancing Weight Ferromagnetic Inlay Magnetic Circuit
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Solution Overview
Problem
Existing balancing weight technologies face challenges in providing sufficient holding force and precision during high-speed handling and application to vehicle wheels, especially with modern automated systems requiring strong magnetic forces and precise location.
Innovation Solution
Incorporating a ferromagnetic inlay within the balancing weight, which interacts with an external magnet to establish a strong magnetic circuit, combined with a body material providing the majority of the weight, allowing for precise positioning and secure attachment to the wheel rim without mechanical or magnetic interference from clips.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a ferromagnetic inlay is added to the balancing weight, then the magnetic holding force is improved, but the device complexity increases
Solution Approach 1:
The balancing weight combines a non-ferromagnetic body material (such as aluminum, magnesium, or plastic) with a ferromagnetic inlay material (such as iron, nickel, or cobalt). This composite structure allows the weight to provide sufficient mass for balancing while the ferromagnetic inlay enables strong magnetic interaction with the handling device, resolving the contradiction between magnetic holding force and overall structure complexity.
Solution Approach 2:
The balancing weight is divided into two functional segments: a body portion that provides the necessary mass and a separate ferromagnetic inlay portion that provides magnetic interaction. This segmentation allows each component to be optimized independently - the body for weight and the inlay for magnetic properties - thereby improving magnetic holding force without significantly increasing overall complexity.
2Productivity
If the balancing weight is handled at high speed with high acceleration, then the productivity is improved, but the reliability of holding the weight decreases
Solution Approach 1:
The invention changes the magnetic parameter of the balancing weight by incorporating a ferromagnetic inlay with high magnetic permeability and saturation flux density. This parameter change enables the magnetic circuit to generate sufficiently strong holding forces that can maintain reliable grip even during high-speed handling and high-acceleration operations, thus improving productivity without sacrificing holding reliability.
3Manufacturing precision
If a ferromagnetic inlay is incorporated, then the manufacturing precision of positioning is improved, but the ease of manufacture decreases
Solution Approach 1:
The ferromagnetic inlay acts as an intermediary element that provides a dedicated magnetic interaction interface between the balancing weight and the handling device. This intermediary structure establishes a well-defined magnetic circuit with predictable flux paths, enabling precise positioning and controlled release during automated handling, while the inlay itself can be manufactured using standard techniques and integrated into the weight body.
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 solution enhances the handling and application of balancing weights by providing a strong, precise magnetic hold, reducing costs and improving reproducibility, while maintaining mechanical stability and corrosion protection.
Implementation Method 1
a balancing weight (90) comprises a balancing weight body (92) having an inlay (95) of ferromagnetic material
Implementation Method 2
This contact surface allows establishing a magnetic circuit with an external magnet, having a comparatively small air gap
Data Source
AI summary
A balancing weight for balancing a wheel of a vehicle has a body of non-ferromagnetic material providing a major portion of the balancing weight's mass and a ferromagnetic inlay for holding the balancing weight by magnetic force. The ferromagnetic inlay provides a minor portion of the balancing weight's mass. A weight applicator has a magnet for interacting with the ferromagnetic inlay of the balancing weight and holding the balancing weight.