Pump Mount Spring Dampener to Reduce Vibration in Beverage Machines
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Solution Overview
Problem
Vibrations from reciprocating piston pumps in beverage preparation machines negatively affect the quality and operational feel of the devices and other components, as existing solutions like suspension with spaced apart suspenders or elastic supports do not adequately address the issue of vibration transmission.
Innovation Solution
A beverage preparation machine design that mounts a vibrating pump on a helicoidal dampening spring, which is secured by an inner spring seat and supported by a plain bearing, allowing friction-free movements and reducing vibration transmission to other machine parts, with flexible electrical connections to further minimize vibration transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the pump is mounted directly in the housing, then the structure is simple and easy to manufacture, but vibrations are transmitted to other machine parts affecting quality and operational feel
Solution Approach 1:
A dampener comprising a spring element is introduced as an intermediary component between the pump and the housing. This mediator absorbs and dampens vibrations generated by the pump during operation, preventing their transmission to other machine parts while maintaining a relatively simple mounting structure.
Solution Approach 2:
The dampener is pre-installed between the pump mounting surface and the housing, providing vibration cushioning before the pump is mounted. This prior cushioning arrangement ensures that vibrations are absorbed at the source without requiring complex post-installation adjustments or affecting the overall simplicity of the mounting process.
2Object-affected harmful factors
If spaced apart suspenders or elastic supports are used to reduce vibrations, then vibration transmission is reduced, but the mounting structure becomes more complex
Solution Approach 1:
The dampener integrates multiple functions into a single compact component: it provides vibration damping, structural support, and mechanical coupling between the pump and housing. This merging of functions achieves effective vibration reduction without requiring multiple separate suspension elements, thereby avoiding excessive structural complexity.
Solution Approach 2:
The spring element's physical parameters (such as spring constant, wire diameter, and coil spacing) are optimized to provide adequate vibration damping while maintaining a compact size. By adjusting these parameters, the dampener achieves effective vibration isolation without requiring a large or complex structure.
3Stability of the object's composition
If rigid mounting is used, then structural stability is high, but vibrations affect other components and reduce operational quality
Solution Approach 1:
The rigid mounting structure is replaced with a dynamic mounting system using a spring element that allows controlled movement and vibration absorption. This dynamic approach maintains structural stability for normal operation while accommodating and dampening vibrational movements, preventing their transmission to other components.
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 solution effectively reduces vibration transmission, simplifies assembly, and enhances the operational reliability and quality of the beverage preparation machine by absorbing vibrations at the pump's connection points, thereby improving the overall performance and reducing the risk of mechanical stress on components.
Implementation Method 1
a dampener for preventing or reducing the transmission of vibrations from the pump to other machine parts. The dampener comprises a spring on which the pump is mounted in the housing, for example a helicoidal dampening spring
Data Source
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AI summary
A beverage preparation machine comprises: a housing (1000); a pump (800) which vibrates during use and which is mounted in the housing; and a dampener for preventing or reducing the transmission of vibrations from the pump to other machine parts, characterised in that the dampener comprise a spring (850) on which the pump is mounted in the housing.