Vacuum Pump Bearing Arrangement for Vibration and Transport Isolation
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Solution Overview
Problem
Existing vacuum pump stands transfer vibrations from preliminary vacuum pumps to high vacuum pumps, causing functional disorders, and external transport impulses can damage preliminary vacuum pumps during transportation.
Innovation Solution
A pumping stand with a bearing arrangement that includes a carrier element supported by spring elements and fastening elements, which decouples the vacuum pump from the stand, preventing vibration transfer and external impulse damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the vacuum pump is rigidly attached to the pumping station, then the structural stability is improved, but vibrations are transmitted to the pumping station causing functional disorders
Solution Approach 1:
The patent introduces a bearing arrangement with spring elements as an intermediary between the vacuum pump and the pumping station base. This mediator absorbs vibrations while maintaining structural connection, preventing vibration transmission to the pumping station while preserving structural stability.
Solution Approach 2:
The patent changes the mechanical parameters of the connection system by using elastic spring elements instead of rigid attachments. The spring elements provide a compliant connection that filters vibration frequencies while maintaining structural integrity, resolving the contradiction between stability and vibration isolation.
2Strength
If the vacuum pump is rigidly attached to the pumping station, then the structural support is improved, but external transport impulses can damage the vacuum pump
Solution Approach 1:
The bearing arrangement with spring elements provides beforehand cushioning for the vacuum pump during transport. The elastic elements absorb and dampen external transport impulses before they can reach the vacuum pump, preventing damage while maintaining structural support.
Solution Approach 2:
The bearing arrangement acts as an intermediary protective layer between external transport impulses and the vacuum pump. The spring elements and dampers in this intermediary system absorb shock loads during transport while maintaining structural support for the pump.
3Object-affected harmful factors
If additional transport locks are added to protect the vacuum pump during transport, then the protection against transport damage is improved, but the device complexity increases and additional locks must be removed during commissioning
Solution Approach 1:
The bearing arrangement serves multiple functions: it provides vibration isolation during operation, structural support, and transport protection simultaneously. This multi-functionality eliminates the need for separate transport locks, reducing device complexity while maintaining protection against transport damage.
Solution Approach 2:
The patent merges the transport protection function with the operational vibration isolation function into a single bearing arrangement. The spring elements and dampers that provide operational stability also protect during transport, combining multiple protective functions into one system without requiring additional transport-specific 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 isolates the vacuum pump from vibrations and external forces, preventing functional disorders and damage during transportation, while eliminating the need for additional transport solutions.
Implementation Method 1
the bearing arrangement comprises at least one spring element, for example in the form of a helical compression spring, by means of which the support element is elastically supported on the base element of the pumping station
Implementation Method 2
the vibrations generated by the diaphragm vacuum pump during operation can, under certain circumstances, be undesirably transmitted to the turbomolecular vacuum pump
Implementation Method 3
by means of which the support element is elastically supported on the base element of the pumping station
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The present invention relates to a pumping station for a vacuum pump. The pumping station comprises a base element on which a bearing arrangement for vibration decoupling of a vacuum pump from the pumping station is provided. The bearing arrangement comprises a support element for at least indirectly supporting a vacuum pump; at least one spring element by means of which the support element is supported on the base element, the spring element extending between opposing sides of the support element and the base element; a fastening element with a shaft, in particular in the form of a screw, by means of which the support element is clamped to the base element; and a spacer sleeve, which is surrounded by the spring element and which in turn surrounds the shaft of the fastening element over a length that is subject to elongation as a result of the clamping of the support element to the base element.