Electromagnetic Coupling Air Gap Adjustment Mechanism
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Solution Overview
Problem
Current electromagnetic coupling apparatuses require complex and time-consuming procedures to set and adjust the air gap between the armature disc and rotor arrangements, involving multiple threads and bores, making the process costly and labor-intensive.
Innovation Solution
An electromagnetic coupling apparatus with an air gap-adjusting unit featuring a closure screw and fastening screw allows for quick adjustment of the air gap without fully removing the armature disc from the drive shaft, using spacing adjusting means like washers or spring elements, simplifying the process and reducing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If adjusting washers or spring elements are used to set the air gap, then the air gap can be adjusted, but the armature disc arrangement must be completely demounted and remounted repeatedly, which is costly and time-consuming
Solution Approach 1:
The adjusting washer is divided into multiple individual washers of different thicknesses that can be selectively combined. This allows precise air gap adjustment by selecting and stacking specific washer combinations without requiring complete disassembly of the armature disc arrangement.
Solution Approach 2:
Multiple adjusting washers of different thicknesses are pre-prepared and available before the adjustment process begins. This eliminates the need for time-consuming on-site calculations and selections during the adjustment process, as the appropriate washer combination is already prepared in advance.
2Reliability
If the armature disc arrangement is pressed onto the drive shaft, then secure mounting is achieved, but repeated demounting and mounting becomes very costly and time-consuming
Solution Approach 1:
The closure screw provides a dynamic adjustment mechanism that allows the armature disc arrangement to be securely mounted while still enabling easy adjustment of the air gap. The screw can be loosened for adjustment and tightened for secure mounting, providing both reliability and ease of adjustment without requiring complete disassembly.
3Manufacturing precision
If multiple threaded bores and screws are used to secure the air gap, then the air gap can be fixed, but the construction becomes relatively complex and time-consuming
Solution Approach 1:
The adjusting washer integrates multiple functions into a single component: it provides the necessary spacing for air gap adjustment, acts as a mounting surface for the closure screw, and secures the relative position between the armature disc arrangement and rotor arrangement. This eliminates the need for multiple separate threaded bores and screws.
Solution Approach 2:
The closure screw serves multiple purposes: it secures the adjusting washer in place, fixes the air gap position, and provides a reliable mechanical connection between components. This multi-functional design simplifies the overall construction by replacing multiple specialized components with a single versatile fastening system.
Data Source
AI summary
The present invention relates to an electromagnetic coupling apparatus (10) for drive arrangements, comprising:—an armature disc arrangement (14) which comprises at least one armature disc,—a rotor arrangement (12). In the case of this coupling apparatus, provision is made for the armature disc arrangement (14) to comprise at least one air gap-adjusting unit (LE) which has a closure screw (42) and which interacts with a fastening screw (44) for fastening the armature disc arrangement (14) to a drive shaft (28) in order to adjust an air gap (LS) between the armature disc arrangement (14) and the rotor arrangement (12).