Stackable Intermediate Members for Separator Axial Positioning

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Solution Overview

Problem

The existing separator designs are complex and require cumbersome methods to set the relative axial distance between rotating and non-rotating components, complicating assembly and maintenance, particularly in cooling and positioning of paring disks within the drum.

Innovation Solution

A preassembled drive and rotation system unit with stackable intermediate members allows for adjustable axial positioning between the drive frame, drum, and paring disk, simplifying the assembly by using these members to set the desired distance and ensuring proper alignment without direct contact between rotating and non-rotating parts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the separator uses a complex structural design with rigid connections between drum, drive spindle, and motor, then the overall structural stability is improved, but the device complexity increases and cooling efficiency deteriorates

Engineering Contradiction:
Improvestructural stabilityVSAvoiddevice complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The separator is divided into distinct modular components: a stationary drive frame containing the motor and drive spindle, and a rotating drum assembly. These segments are connected through a flexible coupling mechanism rather than rigid connections, allowing independent optimization of each module while maintaining overall structural stability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A flexible coupling acts as an intermediary element between the stationary drive spindle and the rotating drum. This mediator transmits rotational motion while accommodating thermal expansion and contraction, thereby simplifying the overall structure and improving cooling efficiency without compromising structural integrity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the paring disks are arranged in rotating paring chambers, then the separation function is improved, but the difficulty of setting axial distance between rotating and non-rotating parts increases

Engineering Contradiction:
Improveseparation functionVSAvoidease of setting axial distance
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The paring chambers are designed to rotate with the drum, creating a dynamic arrangement where the paring disks maintain optimal axial distance from the drum surface during operation. This dynamic configuration ensures reliable separation function while the modular design allows easy adjustment of axial distances during assembly.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The axial distances between the paring disks and the drum surface are pre-set during the assembly of modular components. By performing this positioning action in advance during manufacturing rather than during installation, the system achieves reliable separation function while simplifying the ease of manufacture and installation.

Inventive Principle:
Principle #10Preliminary action

3Power

If the drum and drive system are rigidly connected to a structural unit, then the power transmission efficiency is improved, but the cooling performance deteriorates

Engineering Contradiction:
Improvepower transmission efficiencyVSAvoidcooling performance
Core Design Contradiction:
PowerVSTemperature

Solution Approach 1:

The drive system is segmented into a stationary motor and drive spindle housed in a separate drive frame, isolated from the rotating drum assembly. This segmentation allows the stationary drive components to be cooled independently through dedicated cooling channels in the drive frame, improving cooling performance while maintaining efficient power transmission through the flexible coupling.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11660616B2Separator having stackable intermediate members
Publication Date: 2023.05.30 GEA MECHANICAL EQUIP GMBH
  • US11660616B2 patent drawing

AI summary

A separator includes a preassembled drive and rotation system unit having an outer ring flange portion and a drive frame having an inner ring flange. The outer ring flange portion of the preassembled drive and rotation system unit is vertically connected to the inner ring flange of the drive frame. A rotatable drum is placed onto the preassembled drive and rotation system unit, in the drum at least one paring disk is arranged in a paring chamber, and one or more stacks each having one or more stackable intermediate elements are arranged between the inner ring flange and the outer ring flange portion in order to set an axial relative position at least between the drive frame and the drive and rotation system unit.