Integrated Motor Rotor Design for Precision Manufacturing
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Solution Overview
Problem
The manufacturing process of screw-type rotor motors is complex due to the assembly of multiple separate parts, leading to reduced precision and increased defect rates.
Innovation Solution
An integrated rotor design where a screw-type ball spindle is surrounded by a nut spindle with magnets attached to its outer surface, featuring a core with protrusions and supports that house the magnets, reducing the number of parts and eliminating tolerance accumulation during assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If multiple separate parts (tube, nut spindle, core) are assembled to form the rotor, then the rotor can be constructed with functional components, but the manufacturing process becomes complicated and precision is reduced
Solution Approach 1:
The patent merges the tube, nut spindle, and core into a single integrated rotor structure. The rotor includes a cylindrical body with an internal threaded bore that directly receives the ball spindle, eliminating the need for separate tube and nut spindle components. This integration simplifies the manufacturing process while preventing tolerance accumulation that would occur with multiple assembled parts, thereby maintaining high precision.
2Productivity
If multiple separate parts are assembled, then functional components can be implemented, but the number of assembly processes increases
Solution Approach 1:
The patent combines multiple functional components into a single rotor structure that includes an integrated cylindrical body with internal threading. This eliminates the need for separate tube, nut spindle, and core components, reducing the total number of parts and assembly operations while maintaining all necessary functions of the original multi-component design.
3Manufacturing precision
If multiple separate parts are assembled, then the rotor can be constructed, but tolerance accumulation occurs during assembly
Solution Approach 1:
The patent integrates the rotor components into a single monolithic structure with an internal threaded bore. This eliminates the assembly interface between separate tube, nut spindle, and core components, thereby preventing tolerance accumulation and reducing the defect rate associated with assembly errors while maintaining the necessary functional precision.
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 integrated configuration simplifies the manufacturing process, improves motor precision, and significantly reduces defect rates while enhancing the motor's overall performance.
Implementation Method 1
a rotor of a motor, which includes a screw type of ball spindle (110) and a nut spindle (120) that surrounds the ball spindle
Data Source
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AI summary
Provided is a rotor of a motor capable of simplifying a manufacturing process and improving precision. The rotor includes a screw type of ball spindle, and a nut spindle that surrounds the ball spindle, is screwed onto the ball spindle, and has magnets attached to an outer circumferential surface thereof.