Stator Lamination Assembly Rail Support Segmentation

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Solution Overview

Problem

The existing methods for manufacturing laminated stator cores are time-consuming due to the need to frequently connect and disconnect supports from a rail during the assembly process of stacked lamination elements.

Innovation Solution

A device and method that allow lamination elements to be moved along a rail without the need to remove and reconnect supports, using a dolly with a saddle and revolving support to angularly regulate the position of the elements for efficient stacking, thereby reducing the need for support reconnection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If supports are connected to the rail to support the dolly during lamination element assembly, then the rail structure provides stable support, but manufacturing time increases due to frequent connection and disconnection of supports

Engineering Contradiction:

Improverail support stabilityVSAvoidmanufacturing time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The rail support system is segmented into multiple removable supports distributed along the rail. Each support can be independently removed and reconnected as the dolly passes, allowing the rail to provide stable support where needed while enabling selective clearance for the dolly without compromising overall structural integrity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Supports are pre-positioned at specific locations along the rail before the assembly process begins. The dolly is designed to pass between predetermined support locations, allowing supports to be removed only at specific intervals rather than requiring continuous support removal along the entire rail length

Inventive Principle:

Principle #10Preliminary action

2Reliability

If multiple supports are connected to the rail for dolly traversal, then rail stability is maintained, but device complexity increases due to the need to manage multiple support connections

Engineering Contradiction:

Improverail structure stabilityVSAvoidsupport connection management

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

Each support is designed with universal functionality to perform multiple roles: providing structural support when connected, being easily removable to allow dolly passage, and being reconnected to restore support. The supports use standardized connection mechanisms that can be quickly attached and detached without requiring different types of supports for different positions

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Productivity

If supports are removed to allow dolly passage, then manufacturing efficiency improves, but the rail structure requires more complex support reconnection procedures

Engineering Contradiction:

Improvemanufacturing efficiencyVSAvoidsupport reconnection procedure

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The supports are designed as temporary, easily replaceable components rather than permanent fixtures. Each support is constructed to be quickly removed and reconnected using simple connection mechanisms, making the supports function as temporary support elements that serve their purpose during dolly passage and can be rapidly reinstated without complex procedures

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Data Source

PatentUS10284059B2Device for manufacturing a stator

Publication Date: 2019.05.07 GE VERNOVA INFRASTRUCTURE TECHNOLOGY LLC

AI summary

The method for manufacturing a stator of an electric machine includes providing a lamination element extending over an annular sector, horizontally moving the lamination element towards a fitting zone, then angularly regulating the lamination element position, and connecting the lamination element to other lamination elements to define the stator.