Nested Motor Pump With Selective Outlet Orientation
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Solution Overview
Problem
Lobe pumps connected to reduction gears lack a central drive shaft and efficient mounting solutions, limiting their operational flexibility and maintenance accessibility.
Innovation Solution
A lobe pump-reduction gear-motor construction with a non-centrally located drive shaft and integral mounting brackets, featuring nested shafts and flanges that allow for selective orientation of the pump outlet relative to the reduction gear housing, and a cantilevered motor support for improved installation and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If lobe pumps are connected to reduction gears with external connections, then the pump can be mounted, but the operational flexibility and maintenance accessibility are limited
Solution Approach 1:
The patent combines the pump housing and mounting bracket into a single integrated assembly. The mounting bracket is formed as one piece with the pump housing, eliminating separate mounting components and external connections. This integration simplifies the overall structure while maintaining mounting functionality, directly addressing the contradiction between ease of operation and device complexity.
Solution Approach 2:
The mounting bracket is designed with multiple mounting hole configurations that allow the pump to be mounted in various orientations and positions. The same integrated bracket structure provides both structural support and multiple mounting options, making the device adaptable to different installation requirements without adding complexity.
2Ease of repair
If traditional external connections are used between lobe pumps and reduction gears, then the structure is simple, but maintenance accessibility is difficult
Solution Approach 1:
The patent segments the pump assembly from the reduction gear by using a standardized flange connection interface. This allows the pump to be easily detached and removed for maintenance while leaving the reduction gear in place. The segmented design with standardized interfaces simplifies maintenance accessibility without requiring complex disassembly procedures.
3Adaptability or versatility
If the drive shaft is centrally located in the pump housing, then the structure is symmetric and simple, but the outlet orientation is limited
Solution Approach 1:
The patent positions the drive shaft off-center within the pump housing, creating an asymmetric arrangement. This asymmetric shaft positioning allows the pump outlet to be oriented in multiple directions relative to the reduction gear while maintaining a relatively simple internal structure. The asymmetric design enables versatility in outlet orientation without requiring complex multi-directional shaft mechanisms.
Data Source
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AI summary
A pump, reduction gear, motor combination wherein the reduction gear and pump have nesting shafts internal to at least one of the housings of the pump and reduction gears. The housings meet at cooperating front and rear flanges having a plurality of bores therethrough, and selection from a number of orientations is possible whereby a pump outlet can be selectively oriented at a number of predetermined orientations relative to the reduction gears. The reduction gears also preferably provide a base spaced from the front flange which provides for mounting to a support to thereby suspend the motor cantileveredly from the reduction gears.