Shaft-Less Electrical Machine Transport Support for Pre-Assembled Rotor
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Shaft-less rotating electrical machines cannot be transported in their assembled condition due to the absence of a rotor shaft for securing the rotor to the stator frame, requiring separate packaging and a time-consuming assembly process upon delivery.
Innovation Solution
A support structure comprising supports positioned in the air gap between the stator and rotor, and transport brackets fixedly connected between the stator frame and rotor, providing radial and axial support to maintain the rotor's position during transportation and assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the rotor and stator are transported separately in shaft-less rotating electrical machines, then the transportation becomes feasible, but the assembly process becomes time-consuming and complex
Solution Approach 1:
The support structure is installed in advance during manufacturing, enabling the rotor to be positioned correctly within the stator before transportation. This preliminary positioning action allows the machine to be transported in an assembled state, eliminating the need for time-consuming assembly at the customer site while ensuring transportation feasibility through proper structural support.
2Stability of the object's composition
If the rotor is secured to the stator frame using a rotor shaft, then the rotor position is stable during transportation, but the machine cannot be adapted to shaft-less applications
Solution Approach 1:
Support structures act as intermediary elements between the rotor and stator frame, providing the necessary mechanical support and position stability during transportation. These supports enable shaft-less designs to achieve the same stability as traditional shaft-connected designs, while maintaining the adaptability and flexibility required for various shaft-less applications.
3Ease of manufacture
If the rotor is inserted into the stator at the customer site, then the machine can be delivered in separate components, but the installation process becomes complex and time-consuming
Solution Approach 1:
The support structures are installed during the manufacturing process, allowing the rotor to be positioned and secured within the stator before delivery. This preliminary action transforms the machine into a pre-assembled unit that requires minimal installation work at the customer site, thereby maintaining transportation flexibility while dramatically simplifying the installation process.
4Reliability
If multiple mechanical fixings are used to connect the rotor to the shaftline, then the connection is secure, but the assembly process becomes more complex
Solution Approach 1:
The support structures are pre-installed during manufacturing, establishing the rotor's position and providing initial mechanical support. This preliminary action reduces the complexity of field assembly by eliminating the need for operators to install multiple mechanical fixings, while still ensuring secure connection through the pre-positioned support structures that guide and stabilize the rotor during final assembly.
Data Source
AI summary
Provided is a shaft-less rotating electrical machine that includes a stator supported by a stator frame and a rotor that is mechanically connectable to a shaftline and is positioned radially inside the stator. The electrical machine is prepared for transport and includes a support structure for stably supporting the rotor inside the stator frame and the support structure includes one or more supports that are positioned in the air gap between the stator and the rotor, and one or more transport brackets. The transport brackets are fixedly connected between the stator frame and the rotor.