Clamping Ring Shaft Assembly With Balanced Shrink-Fit Locking
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Solution Overview
Problem
Existing shaft-hub connections lack a reliable and efficient force-fitting mechanism that balances the adapter shaft without additional balancing measures and provides effective loss protection.
Innovation Solution
A clamping ring assembly where a first threaded pin induces high contact pressure for a shrink-fitting connection, and a second threaded pin provides loss protection, with a recess and axial slots on the adapter shaft allowing for uncomplicated production and high elasticity, ensuring the adapter shaft is balanced and securely connected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single threaded pin is used for connection, then the structure is simple, but the adapter shaft requires additional balancing measures
Solution Approach 1:
The connection function is segmented into two distinct threaded pins: a first threaded pin for creating the shrink-fitting connection and a second threaded pin for loss protection. This segmentation allows each pin to be optimized for its specific function, with the first pin positioned to create balanced forces while the second pin provides security without interfering with balancing.
Solution Approach 2:
Different regions of the adapter shaft are given different properties: a flattened region is created at the location where the first threaded pin exerts pressure to enable high contact pressure, while a recess is provided for the second threaded pin. The axial slots are strategically positioned to maintain elasticity while accommodating these localized modifications for optimal balancing.
2Strength
If high contact pressure is induced for shrink-fitting connection, then the connection strength is improved, but the adapter shaft material is removed reducing elasticity
Solution Approach 1:
The adapter shaft is designed with axial slots that allow it to dynamically adjust and deform elastically under the high contact pressure applied by the first threaded pin. The slots enable the material to flow and redistribute stresses, maintaining elasticity even when high compression forces are applied during the shrink-fitting process.
Solution Approach 2:
The adapter shaft structure is segmented by introducing axial slots that divide the continuous material into sections. This segmentation allows localized deformation under pressure while maintaining overall structural integrity and elasticity, enabling the shaft to withstand the high contact pressure needed for strong connection without becoming brittle.
3Reliability
If a recess is introduced for loss protection, then the security is improved, but the production complexity increases
Solution Approach 1:
The recess for the second threaded pin is merged with the existing axial slots in the adapter shaft design. By positioning the recess to overlap with the axial slots, the structure achieves loss protection functionality while utilizing the already-planned slot geometry, thereby minimizing additional material removal and reducing production complexity.
4Adaptability or versatility
If axial slots are introduced for elasticity, then the flexibility is improved, but the structural strength is reduced
Solution Approach 1:
The axial slots are pre-positioned and pre-sized during manufacturing to provide the necessary elasticity while maintaining structural strength. The slots are designed with specific dimensions and spacing that allow controlled deformation under operational loads without compromising the overall structural integrity of the adapter shaft.
Solution Approach 2:
The adapter shaft exhibits different mechanical properties in different regions: the areas between axial slots maintain high structural strength, while the slot regions provide elasticity and flexibility. This local differentiation allows the structure to simultaneously achieve both strength and adaptability, with each region optimized for its specific function.
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 achieves a balanced and securely connected force-fitting connection with integrated loss protection, enabling efficient mechanical contraction without additional balancing measures, ensuring reliable operation.
Implementation Method 1
a first threaded pin (2), which exerts pressure on the adapter shaft (1), in particular on a particular surface region, in particular on a flattened region (20)
Implementation Method 2
The shrink-fitting connection, i.e. the force-fitting connection, is brought about with the aid of the first threaded pin (2)
Implementation Method 3
the second screw part at least partially projects into a recess of the adapter shaft and in particular exerts pressure on the adapter shaft. This has the advantage that a loss protection is formed with the aid of the second threaded pin (3)
Implementation Method 4
the adapter shaft (1) has axial slots, which are set apart from one another at regular intervals in the circumferential direction... This has the advantage that high elasticity is able to be achieved in an uncomplicated manner
Data Source
AI summary
In an assembly for connecting an adapter shaft to a shaft in a force-fitting manner using a clamping ring, the clamping ring is mounted on the adapter shaft, the shaft is inserted into the adapter shaft, the clamping ring has a first radially uninterrupted threaded bore into which a first screw part is screwed, in particular a first threaded pin, which exerts pressure on the adapter shaft, the clamping ring has a second radially uninterrupted threaded bore into which a second screw part is screwed, in particular a second threaded pin, and the second screw part projects at least partially into a recess of the adapter shaft and in particular exerts pressure on the adapter shaft.