Centrifuge Separator With Direct Drive Motor
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Solution Overview
Problem
Existing separators are large and inefficient due to rigid connections between components, leading to increased vibration and mass movement, which complicates design and production, especially in compact industrial settings.
Innovation Solution
A compact separator design where the stator is rigidly connected to the machine frame, and the motor rotor, drive spindle, and centrifugal drum form a unit elastically supported on the frame, with the bearing device between the motor and drum, allowing for a structurally separated motor area and reduced relative movements between stator and motor rotor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the drum, drive spindle and motor are rigidly connected to form a structural unit supported elastically on the machine frame, then the separator achieves stable operation, but the system becomes large and requires moving large masses during vibration
Solution Approach 1:
The patent divides the separator into two distinct support systems: the stator is rigidly connected to the machine frame (non-oscillating), while the motor rotor, drive spindle and drum form a separate oscillating unit supported by elastic elements. This segmentation allows the heavy stator to remain stationary while only the lighter rotating components undergo vibration, reducing the mass that needs to be moved during operation.
2Ease of operation
If the bearing device is arranged axially in the motor area or on both sides of the motor, then the motor is supported, but the motor area cannot be separated from the bearing area
Solution Approach 1:
The patent extracts the bearing device from the motor area and relocates it to the oscillating unit between the motor rotor and drum. The motor rotor is supported by the elastic elements rather than axial bearings within the motor housing, allowing the motor area to be structurally separated from the bearing area. This enables independent lubrication systems and simplifies motor maintenance.
3Adaptability or versatility
If a coupling or other intermediate elements are used to connect the motor rotor to the drive spindle, then the connection is flexible, but the design becomes more complex and manufacturing costs increase
Solution Approach 1:
The patent merges the motor rotor and drive spindle into a single integrated component or directly connected unit, eliminating the need for separate couplings or intermediate elements. This direct connection reduces the number of parts, simplifies the design, lowers manufacturing costs, and maintains sufficient connection flexibility through the elastic support elements.
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 design achieves a compact, cost-effective separator with minimized oscillating mass and stable operation by reducing relative movements and eliminating the need for separate bearings, enabling efficient vibration tuning and reduced manufacturing costs.
Implementation Method 1
the motor rotor, the drive spindle and the centrifugal drum form a unit which is elastically supported on the machine frame by means of elastic elements, preferably by means of ultra-bushings
Implementation Method 2
separator (1) with a centrifugal drum (2) with a vertical axis of rotation
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A separator (1) incorporates: a centrifuge drum (2) with vertical rotational axis (D) and a feed line for a product to be centrifugally processed, a drive spindle (3) for the centrifuge drum, which is mounted to rotate in a housing (6) that is elastically supported on a machine frame (7), and a drive system with an electrical drive motor (11) that has a stator (12) and an armature (13) aligned with the drive spindle (3), wherein the stator (12) is immovably fixed to the machine frame (8), and the armature (13), the drive spindle (3), the centrifuge drum (2) and the housing (6) form a unit that vibrates when in operation, elastically supported on the machine frame (8), wherein the mounting device is positioned between the motor (11) and the drum (1).