Rotating Electric Machine Partition Plate Reinforcement
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Solution Overview
Problem
Conventional rotating electric machines face challenges in easily providing a partition plate to the gland seal without pre-formed grooves, leading to instability and potential deformation due to seal oil pressure and flow.
Innovation Solution
A rotating electric machine design that includes a partition plate opposed to the oil feed port, reinforced with plates fixed to the gland seal's side wall, allowing for precise placement and fixation without pre-formed grooves, ensuring oil feed paths and maintaining the partition plate's position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a partition plate is additionally provided to the gland seal without pre-formed grooves, then the ease of manufacture is improved, but the stability of the partition plate position deteriorates due to seal oil pressure and flow
Solution Approach 1:
The partition plate is divided into a plate body and separate reinforcing plates. The reinforcing plates are positioned at the ends of the plate body and extend toward the circumferential wall of the gland seal, creating a segmented structure that distributes mechanical stress and improves positional stability without requiring pre-formed grooves in the gland seal.
Solution Approach 2:
The reinforcing plates extend in the radial direction from the plate body toward the circumferential wall, adding a dimensional element that provides structural support. This radial extension creates a three-dimensional reinforcement structure that resists displacement caused by seal oil pressure and flow.
2Ease of operation
If the partition plate is made thin to reduce obstruction of the oil feed port, then the ease of operation is improved, but the strength of the partition plate deteriorates under seal oil pressure
Solution Approach 1:
The partition plate structure is segmented into a thin plate body for minimal obstruction and separate reinforcing plates for structural strength. The reinforcing plates are positioned at the ends and extend radially to provide support against seal oil pressure, allowing the main plate body to remain thin for easy oil feed operation.
Solution Approach 2:
Different parts of the partition plate structure have different thicknesses and functions. The plate body is thin to minimize obstruction of the oil feed port, while the reinforcing plates at the ends are structurally stronger to withstand seal oil pressure. This local differentiation of quality optimizes both ease of operation and structural strength.
Data Source
AI summary
This rotating electric machine includes: a rotor having a shaft; a stator formed around the rotor; a seal ring formed around the shaft and having a plurality of through holes; a gland seal formed so as to surround the seal ring and having an oil feed port; and a partition plate formed between the seal ring and the gland seal, wherein the partition plate is formed at a position opposed to the oil feed port and is fixed to an upper wall and a lower wall in an axial direction of the gland seal, and the partition plate has a reinforcing plate at such a position as not to obstruct the oil feed port, the reinforcing plate being fixed to a side wall of the partition plate on a gland seal side and being in close contact with a circumferential wall of the gland seal.