Pump Stator Inclined Surface Alignment
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Solution Overview
Problem
Existing pumps face challenges in reducing the positional deviation of the central axis of the inner element with respect to the central axis of the production pipe, making it difficult to stably insert and support the inner element.
Innovation Solution
The pump design incorporates a ring-shaped first inclined surface on the production pipe and a ring-shaped second inclined surface on the pump stator, which come into surface contact to guide and support the inner element, reducing positional deviation and enhancing sealing with additional seal members and a thrust collar for stable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the inner element is inserted into the production pipe without guidance structures, then the insertion process is simple, but the positional deviation of the central axis of the inner element with respect to the central axis of the production pipe increases
Solution Approach 1:
The first inclined surface is formed in advance on the production pipe, and the second inclined surface is formed on the pump stator before assembly. These pre-formed inclined surfaces act as guidance structures that automatically align the inner element with the production pipe during insertion, reducing positional deviation without requiring complex adjustment mechanisms during assembly.
Solution Approach 2:
The inclined surfaces (first and second) act as intermediary elements between the production pipe and the inner element. They provide a gradual transition and contact interface that guides the inner element into proper alignment, mediating the connection between the two components and ensuring minimal positional deviation.
2Reliability
If the inner element is supported by the production pipe through inclined surfaces, then the alignment precision improves, but the device complexity increases due to additional structural components
Solution Approach 1:
The first inclined surface on the production pipe serves multiple functions: it acts as a guidance surface for alignment, a support surface for bearing the inner element, and a sealing surface when combined with the second inclined surface. This multi-functionality reduces the need for separate components, thereby improving reliability without proportionally increasing device complexity.
Solution Approach 2:
The alignment and support functions are merged into the inclined surface structures. The first and second inclined surfaces are integrated into the production pipe and pump stator respectively, combining the alignment mechanism and support mechanism into a unified structure that ensures stable operation.
3Object-generated harmful factors
If ring-shaped seal members are added at the inclined surfaces, then fluid leakage is prevented, but the manufacturing complexity increases
Solution Approach 1:
The inclined surfaces are designed to naturally guide and position the ring-shaped seal members into their correct locations during assembly. The geometry of the inclined surfaces provides self-alignment for the seal members, eliminating the need for complex positioning fixtures or adjustment mechanisms, thereby reducing manufacturing complexity while ensuring effective sealing.
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 configuration effectively reduces the positional deviation of the inner element's central axis, ensuring stable alignment and preventing fluid leakage, thereby improving the pump's operational efficiency and reliability.
Implementation Method 1
a ring-shaped second inclined surface that comes into surface contact with the first inclined surface is formed outside the pump stator, and the production pipe supports the inner element as the first inclined surface and the second inclined surface come into surface contact with each other
Data Source
AI summary
The pump includes a ring-shaped first inclined surface formed in a portion of a production pipe located above a motor stator and inclined in a direction toward a central axis of the production pipe with respect to a direction from an upper end to a lower end of the production pipe, and a ring-shaped second inclined surface that is formed outside a lower end portion of a pump stator constituting an inner element and comes into surface contact with the first inclined surface.