Screw Spindle Pump Rotating Cover for Flexible Port Alignment
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Solution Overview
Problem
Existing screw spindle pumps face challenges in flexible positioning of fluid inlet and outlet connections due to fixed installation spaces, requiring multiple outer housing designs for different assembly situations, which complicates the assembly process.
Innovation Solution
A screw spindle pump design featuring a cover component with axial fluid inlet and lateral fluid outlet connections, allowing for multiple rotational positions, enabling the spindle housing to be positioned optimally for efficient operation, with two degrees of rotational freedom for the cover component and spindle housing, facilitating flexible alignment of the fluid outlet connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the outer housing is designed as a single cup-shaped component with fixed inlet and outlet ports, then the manufacturing is simplified, but the adaptability to different mounting situations is reduced
Solution Approach 1:
The outer housing is divided into a first housing part and a second housing part that can rotate relative to each other. The first housing part contains the inlet port while the second housing part contains the outlet port. This segmentation allows independent positioning of each port to accommodate different mounting configurations while maintaining a unified housing structure for simplified manufacturing.
Solution Approach 2:
The second housing part is designed to rotate relative to the first housing part, transforming the static housing structure into a dynamic one. This rotational capability allows the outlet port to be positioned at different angles (e.g., 0°, 90°, 180°, 270°) to match various connection requirements in the mounting environment, thereby achieving adaptability without requiring multiple housing designs.
2Adaptability or versatility
If multiple outer housing designs are provided for different mounting situations, then the adaptability to various installation environments is improved, but the device complexity and cost increase
Solution Approach 1:
The outer housing is designed as a universal structure where the second housing part can rotate to achieve multiple connection configurations. Instead of creating separate housing designs for different mounting situations, this single housing design with rotational capability serves multiple functions, accommodating various inlet-outlet port arrangements (e.g., opposite sides, adjacent sides) without increasing device complexity or requiring multiple components.
3Manufacturing precision
If the inlet and outlet ports are fixed on the outer housing, then the manufacturing precision is maintained, but the ease of operation for positioning is reduced
Solution Approach 1:
The outlet port is made movable through the rotational capability of the second housing part relative to the first housing part. While the inlet port remains fixed for manufacturing precision, the outlet port can be dynamically positioned at different angles during installation to match connection requirements, thereby achieving both precision and operational flexibility.
Data Source
Figure 1
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AI summary
Screw spindle pump, comprising a spindle housing (2) in which a drive spindle (3) and at least one meshing running spindle (4) are received in spindle bores (27), an outer housing (7) enclosing the spindle housing (2), and a cover component (8) axially mounted on the outer housing (7), on which both an axial fluid inlet port (9) and a lateral fluid outlet port (10) are provided, wherein the fluid inlet port (9) communicates with a fluid inlet of the spindle housing (2) and the fluid outlet port (10) communicates with a fluid outlet of the spindle housing (2), wherein the cover component (8) can be attached to the outer housing (7) in several distinguished rotational positions with a first division, and wherein the spindle housing (2) can be attached to the cover component (8) and/or in the outer housing (7) in several distinguished rotational positions with a second, smaller division.