Pump Mount Using Helicoidal Spring to Reduce Vibration Transmission
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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 helicoidal dampening spring is used to mount the pump, which absorbs and reduces vibrations, allowing friction-free movement and minimizing transmission to other machine parts, combined with a plain bearing for additional support and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a reciprocating piston pump is mounted directly in the housing, then the pump structure is simple and easy to manufacture, but vibrations are transmitted to the housing and other components, negatively affecting the quality and operational feel of the device
Solution Approach 1:
A dampener comprising a spring is introduced as an intermediary element between the pump and the housing. The spring serves as a mediator that decouples the vibration source (pump) from the housing and other components, allowing the pump to be mounted securely while preventing harmful vibration transmission. This resolves the contradiction by adding a vibration-isolating intermediary without significantly complicating the overall mounting structure.
2Object-affected harmful factors
If the pump is suspended with spaced apart suspenders or elastic supports, then vibration transmission is reduced, but the mounting structure becomes more complex
Solution Approach 1:
The dampener integrates multiple functions into a single compact structure. The spring element combines vibration damping, shock absorption, and mechanical support functions that would otherwise require separate components. This merging approach reduces the overall complexity of the mounting structure while maintaining effective vibration isolation, contrary to the assumption that vibration reduction necessarily increases complexity.
3Object-affected harmful factors
If a dampener with a spring is used to mount the pump, then vibration transmission to other machine parts is reduced, but the device complexity increases
Solution Approach 1:
The spring in the dampener is designed to be self-adjusting and self-regulating. It automatically adapts to the pump's operating conditions, providing optimal vibration damping without requiring external control mechanisms or complex adjustment systems. The spring's inherent elastic properties enable it to self-service the vibration isolation function, minimizing the overall device complexity while maintaining effective vibration reduction.
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 solution effectively reduces vibration transmission, simplifying the assembly and maintenance of beverage preparation machines by minimizing friction and improving the operational stability and reliability of the equipment.
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, wherein the spring is a helicoidal dampening spring
Data Source
Figure 1
Figure 2
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.