Pump Body Load Testing with Heated Multi-Specimen Rotation
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Solution Overview
Problem
Existing technologies face difficulties in simulating the connection form between a pump body and an end cover, and the number of pump bodies tested in a single test is limited, leading to increased test time and inadequate understanding of the influence of temperature on normal loads.
Innovation Solution
A normal load testing device with a rotating mechanism, connecting heating rings, stabilizing mechanism, sensor, and hammering mechanism, which allows simultaneous testing of multiple pump bodies at varying temperatures and hammering torques, simulating the connection form and collecting test data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional testing methods are used, then the testing process is simple, but the number of pump bodies tested in a single test is limited and test time increases
Solution Approach 1:
Multiple pump bodies are mounted on a single rotating platform and tested simultaneously. The platform integrates multiple testing positions, allowing parallel testing of multiple pump bodies under different conditions, thereby increasing productivity and reducing total test time.
Solution Approach 2:
The testing system transitions from single-point sequential testing to multi-point parallel testing by adding the rotational dimension. The rotating platform enables multiple pump bodies to be positioned at different angular locations, allowing simultaneous excitation and measurement across multiple specimens.
2Measurement precision
If the connection form between pump body and end cover is not simulated accurately, then the testing setup is simpler, but the testing accuracy and reliability are insufficient
Solution Approach 1:
A specialized connection structure with simulated end cover features is introduced as an intermediary between the pump body and the testing platform. This intermediary component replicates the actual connection geometry and mechanical properties, enabling accurate simulation of the pump body-end cover interface without requiring the actual end cover assembly.
Solution Approach 2:
The connection simulation is achieved by segmenting the testing system into modular components: the pump body, the simulated connection interface, and the mounting structure. This segmentation allows independent optimization of each component to achieve accurate connection form simulation while maintaining device manageability.
3Measurement precision
If temperature influence on normal load is not considered, then the testing process is simpler, but the understanding of normal load characteristics is insufficient
Solution Approach 1:
The rotating platform is designed to serve multiple functions: it provides mechanical support for mounting pump bodies, enables rotational positioning for different testing configurations, and integrates temperature control capabilities. This multi-functionality allows temperature influence studies without requiring a separate testing system.
Solution Approach 2:
Temperature control is achieved through pneumatic or hydraulic heating/cooling systems that can be integrated into the rotating platform. These systems provide precise temperature regulation while maintaining the mechanical functionality of the platform, allowing simultaneous mechanical testing and thermal conditioning.
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
The device efficiently simulates the connection form between the pump body and end cover, enables simultaneous testing of multiple pump bodies, and measures normal loads at different temperatures and hammering torques, reducing test time and providing accurate modal parameters.
Implementation Method 1
the connecting heating ring is configured to connect the pump body to the fixed plate and heat the pump body
Implementation Method 2
the sensor is configured to collect test data of the pump body during the test
Data Source
AI summary
The present disclosure discloses a normal load testing device for a pump body, which includes a fixed platform. A rotating mechanism is provided on the fixed platform, a rotating end of the rotating mechanism is connected to a fixed plate. The normal load testing device further includes: a plurality of connecting heating rings configured to connect the pump body to the fixed plate and heat the pump body; a stabilizing mechanism, configured to strengthen the stability of the pump body and the fixed plate after connection; a sensor, configured to collect test data of the pump body during the test; and a hammering mechanism, configured to excite the pump body from top to bottom. The normal load testing device can simulate the connection form between the pump body and an end cover, and can test a plurality of pump bodies at the same time, thus saving the test time.