Clamping Ring and Retaining Ring Layout for Shaft-Hub Anti-Rotation
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Solution Overview
Problem
Existing clamping connections fail to optimize force distribution and anti-rotation protection in shaft-hub connections, leading to inefficiencies in assembly and torque transmission.
Innovation Solution
A clamping connection featuring a clamping ring with a tangentially directed screw on a hollow shaft section, utilizing a locking ring with radial projections and annular grooves on both the clamping ring and hub, which creates continuous and discontinuous axial slots for defined force distribution and anti-rotation protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a retaining ring with radial projections is used to secure the clamping ring axially and prevent rotation, then anti-rotation protection and axial positioning are improved, but the device complexity increases due to additional components and grooves
Solution Approach 1:
The retaining ring combines multiple functions into a single component: axial positioning (via engagement with the annular groove on the hub), circumferential anti-rotation (via radial projections into axial slots), and radial positioning (via engagement with the clamping ring groove). This merging of functions reduces the need for separate components while achieving reliable positioning and anti-rotation protection.
Solution Approach 2:
The retaining ring acts as an intermediary element between the hub and the clamping ring, mediating the connection by providing both axial and circumferential constraints. It transfers forces and constraints between the two components without requiring direct complex interaction between them.
2Force
If continuous axial slots are created in the clamping ring for screw engagement, then the clamping force distribution is improved, but the structural strength of the clamping ring decreases
Solution Approach 1:
The continuous axial slot is segmented by transverse slots that divide it into multiple discrete engagement regions. This segmentation allows the clamping force to be distributed across multiple localized areas rather than creating a single weak point, thereby maintaining structural integrity while achieving effective force distribution through the screw engagement.
3Force
If the hub is made elastically deformable with open axial slots to achieve specified force distribution, then the force distribution around the circumference is improved, but the rigidity of the hub decreases
Solution Approach 1:
The hub transitions from a rigid structure to an elastically deformable one during the clamping process. The open axial slots allow controlled elastic deformation that enables the hub to conform and distribute clamping forces evenly around the circumference. After clamping, the hub maintains its deformed state to provide stable force distribution while retaining sufficient rigidity for 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 ensures optimized force distribution around the circumference, enhanced anti-rotation protection, and defined mass distribution, allowing for precise assembly and effective torque transmission in applications like geared motors.
Implementation Method 1
a retaining ring is arranged between the hub and the clamping ring, in particular for axially securing and preventing rotation of the clamping ring on the hub
Implementation Method 2
a clamping connection is a force-locking connection
Implementation Method 3
the clamping ring with a screw, in particular clamping screw, placed on a hub, in particular a hollow shaft section
Implementation Method 4
the hub can be deflected more elastically during clamping than without the axial slot
Data Source
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AI summary
The invention relates to a clamping connection with a clamping ring mounted on a hub, comprising a screw, in particular a clamping screw. Another shaft is inserted into the hub, and the clamping ring has a slot which is continuous in the axial direction with respect to the shaft axis and in the radial direction. A securing ring is arranged between the hub and the clamping ring, wherein the hub has a first and a second axial slot, and the first axial slot is arranged at a distance from the second axial slot in the circumferential direction. The securing ring has a radially inner region which protrudes into the first or second axial slot of the hub, and the securing ring has one, two, or more radially outer regions which protrude into the slot.