Separator Drive Device Joint Element Axial Movement
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Solution Overview
Problem
Existing separator designs with direct drives face challenges in accommodating axial movements of the drive spindle during operation, leading to potential instability and inefficiencies in elastic support systems.
Innovation Solution
The use of sheet metal parts as joint elements, specifically ring disks or segments, is introduced to provide differential rigidity in radial and axial directions, allowing for axial movement while maintaining stability through elastic support systems, and integrating a lubricant collection system for reliable lubrication and cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the motor is rigidly connected to the machine frame, then radial stability is improved, but axial movement capability deteriorates
Solution Approach 1:
The joint element is designed with non-uniform rigidity characteristics: high rigidity in the radial direction (0.5-2 MN/m) to stabilize the motor radially, and low rigidity in the axial direction (0.05-0.2 MN/m) to allow axial movement. This anisotropic rigidity distribution enables the single joint element to simultaneously satisfy both contradictory requirements.
2Adaptability or versatility
If elastic support elements are used to allow axial movement, then axial movement capability is improved, but radial stability deteriorates
Solution Approach 1:
The elastic joint element incorporates different rigidity characteristics for different spatial directions. The radial rigidity (0.5-2 MN/m) is designed to be sufficiently high to maintain motor stability, while the axial rigidity (0.05-0.2 MN/m) is designed to be low enough to permit necessary axial movements during separator operation.
3Strength
If rigid joint elements are used to fix the motor, then radial fixation is improved, but axial movement capability deteriorates
Solution Approach 1:
The joint element is designed with direction-dependent mechanical properties: high radial stiffness (0.5-2 MN/m) to provide strong radial fixation and prevent motor displacement, while low axial stiffness (0.05-0.2 MN/m) to accommodate axial movements that occur during separator operation.
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 configuration enhances operational stability and efficiency by allowing axial movement while ensuring radial fixation, and provides a reliable lubrication circuit and cooling mechanism, improving the overall performance of the separator.
Implementation Method 1
The housing (6) is supported by means of elastic elements (7, 8), preferably by means of rubber elements or rubber rings, on a machine frame ring section (9)
Data Source
Figure 1
AI summary
Disclosed is a separator (1) comprising the following: a centrifugal drum (2) which has a vertical axis of rotation (D) and a supply pipe for a material that is to be centrifuged and processed; a drive spindle (3) for the centrifugal drum, said drive spindle (3) being rotatably mounted, by means of a bearing, in a housing (6) that is elastically supported on a machine frame (8); and a driving device with an electric driving motor (10) that encompasses a stator (11) and a motor rotor (12) which is aligned with the drive spindle (3). The driving device, including the motor housing (13), performs the same movements as the drive spindle (3) as a co-vibrating unit during operation. The disclosed separator (1) is characterized in that the driving device is connected to the machine frame (32) below the bearing, in particular at the lower axial end thereof, by means of at least one or more joint elements (31).