Clamping Holder Housing Structure to Preserve Rotor Concentricity
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Solution Overview
Problem
Existing clamping holders for rotors in spinning test benches experience deformation due to clamping forces, leading to incorrect measurements and impaired concentricity, particularly in systems with centrifugal force compensation.
Innovation Solution
A cup-shaped, thin-walled housing with fastening means featuring recesses in the base surface of clamping blocks, allowing for secure attachment without deforming the housing, ensuring torque-proof connection and maintaining concentricity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If fastening means are attached to the housing to secure the clamping holder, then the clamping holder is firmly fixed, but the housing deforms under clamping forces
Solution Approach 1:
The fastening means are divided into multiple clamping blocks distributed around the housing circumference. Each clamping block independently secures the clamping holder at specific points, distributing the clamping forces across multiple locations rather than concentrating them, thereby preventing housing deformation while maintaining secure fixation.
Solution Approach 2:
The clamping blocks feature recesses in their base surfaces that create localized contact points with the housing. This local quality design allows the fastening forces to be applied at specific discrete locations rather than distributed continuously, reducing the overall deformation of the housing while maintaining adequate fixing strength at critical points.
2Weight of moving object
If the housing is made thin-walled to reduce weight, then weight is reduced, but the housing becomes prone to deformation
Solution Approach 1:
The introduction of segmented clamping blocks as fastening means provides localized structural reinforcement at critical attachment points. The housing maintains its thin-walled construction for weight reduction, while the clamping blocks compensate for the reduced overall strength by concentrating support at specific locations where forces are applied.
3Strength
If clamping forces are applied to secure the holder, then secure attachment is achieved, but measurement precision deteriorates due to deformation
Solution Approach 1:
By distributing clamping forces across multiple segmented clamping blocks rather than applying a single concentrated force, the housing deformation is minimized. This segmentation of the clamping action preserves the rotational symmetry and concentricity of the housing, thereby maintaining measurement precision while achieving secure attachment.
Solution Approach 2:
The recesses in the clamping blocks create localized contact regions that concentrate the clamping forces at specific points. This local quality approach allows secure attachment to be achieved with lower overall forces, preventing excessive deformation that would compromise measurement accuracy in spinning test benches.
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
Prevents deformation of the clamping holder, maintains concentricity, and allows for stable, torque transmission without play, while accommodating centrifugal force compensation, ensuring precise clamping and release of rotors.
Implementation Method 1
a deformation of the housing is prevented in particular when the clamping holder is fixed in the housing
Implementation Method 2
Known rotor clamping holders have centrifugal segments in order to compensate for the influences of centrifugal force on the clamping of the rotor
Data Source
AI summary
In a component for connecting a shaft to a clamping holder that can receive a rotor, the clamping holder is able to be inserted into a cup-shaped housing and is able to be fixed there by fasteners. On the housing base of the housing is a connector for connecting the housing to the shaft in a torque-proof manner. The fasteners are arranged with their base surface on the outer lateral surface of the housing, and can be brought into engagement with the clamping holder by bores present in the housing. The fasteners have at least one recess in the base surface, such that they rest with their base surface on the outer lateral surface only in some regions.