Rotor Pole Shoe Positioning Seat for Repulsion-Free Assembly
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Solution Overview
Problem
The existing methods for adhering magnetic pole shoes on a rotor are inaccurate due to repulsive forces causing deviation, particularly on the uppermost section, making the process cumbersome and difficult to manage.
Innovation Solution
A device with a magnet positioning seat and support frame, featuring evading grooves, fixation units with push rods, and positioning plates, ensures precise alignment and adhesion of magnetic pole shoes between positioning ribs, preventing upward movement and facilitating high-accuracy assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If magnetic pole shoes are adhered on the uppermost section of the rotor core using conventional methods, then the adhesion process can be completed, but the magnetic pole shoes will be deviated upward due to repulsive force from the middle section magnetic pole shoes, resulting in poor assembly accuracy
Solution Approach 1:
The patent applies preliminary anti-action by using a magnet positioning seat with positioning plates that have bumps matching recesses on the rotor core positioning ribs. This positioning structure is established before adhesion to preemptively counteract the repulsive force that would otherwise cause upward deviation of the magnetic pole shoes on the uppermost section.
Solution Approach 2:
The patent introduces a magnet positioning seat as an intermediary device between the operator and the magnetic pole shoes. This positioning seat with fixation units and positioning plates serves as a mediator that holds the magnetic pole shoes in the correct position during adhesion, preventing direct deviation caused by repulsive forces.
2Ease of operation
If magnetic pole shoes are adhered on the uppermost section without positioning constraints, then the adhesion process is simpler, but the magnetic pole shoes cannot be limited in position and will deviate upward
Solution Approach 1:
The magnet positioning seat is designed to be self-positioning through the bump-recess matching mechanism. The bumps on the positioning plates automatically align with the recesses on the rotor core positioning ribs when the seat is placed on the rotor, enabling the device to self-position without additional alignment operations, thus maintaining ease of operation while ensuring precision.
Solution Approach 2:
The magnet positioning seat acts as an intermediary that provides both positioning function and operational convenience. The fixation units with push rods allow easy placement and removal while the positioning plates ensure accurate positioning, combining the benefits of simplicity and precision.
3Manufacturing precision
If a complex positioning device is used to prevent upward deviation of magnetic pole shoes, then assembly accuracy is improved, but the device structure becomes more complicated
Solution Approach 1:
The magnet positioning seat is segmented into multiple independent fixation units, each with its own push rod and magnet positioning block. This segmentation allows the complex positioning function to be divided into simpler, modular components that can be independently manufactured and assembled, reducing overall device complexity while maintaining positioning accuracy.
Solution Approach 2:
The fixation units incorporate movable push rods that can slide within the support frame, allowing the magnet positioning blocks to be dynamically adjusted to the correct position. This dynamic capability enables precise positioning without requiring overly complex fixed structures, as the simplicity of sliding motion achieves the needed accuracy.
Data Source
AI summary
A device for adhering magnetic pole shoes on a rotor includes a soleplate, wherein a support seat is arranged on the soleplate; a magnet positioning seat is arranged above the support seat; the magnet positioning seat has a support frame, which includes an upper plate and a lower plate, with the lower plate having a first evading groove for evading a rotor core, and the upper plate having a second evading groove for evading an upper end of a rotor shaft; and fixation units and a plurality of positioning plates being provided between the upper and lower plates, each fixation unit including a push rod in sliding fit with the support frame and the push rod can move axially, a magnet positioning block being fixed at an inner end of the push rod, each positioning plate being located between two adjacent fixation units.