Shaft Locking Mechanism with Adjustable Clamping Ring
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Solution Overview
Problem
Existing shaft locking mechanisms for smooth round shafts face challenges in providing a secure, removable lock without slippage, especially on low-friction metal surfaces, as they often require excessive force and are not easily adjustable for precise diameter matching.
Innovation Solution
A shaft locking mechanism featuring a housing with a freely supported clamping ring, adjustable locking thread, and a horizontally trapped dowel pin, which allows for variable clamping diameter and force adjustment via a lever and set screw, enabling secure axial and rotational locking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If fixed diameter and fixed clamping force locks are used, then the locking mechanism is simple in structure, but it is difficult to match the required diameter precisely without excessive force
Solution Approach 1:
The locking mechanism incorporates an adjustable clamping diameter feature that allows the clamping ring to be dynamically resized to match different shaft diameters precisely. This dynamic adjustment capability eliminates the need for excessive force while maintaining secure locking, resolving the contradiction between precision and simplicity.
Solution Approach 2:
The invention changes the fixed parameter (clamping diameter) to a variable parameter that can be adjusted according to the specific shaft diameter. This parameter change enables precise matching without requiring excessive clamping force, thereby improving manufacturing precision while managing device complexity.
2Reliability
If very firmly secured locks are used on low friction metal surfaces, then the locking reliability is improved, but the ease of operation deteriorates due to excessive force requirements
Solution Approach 1:
The adjustable clamping diameter feature allows the mechanism to adapt dynamically to the shaft surface characteristics. By matching the clamping diameter precisely to the shaft diameter, the mechanism achieves reliable locking on low-friction surfaces without requiring excessive manual force, thus maintaining both reliability and ease of operation.
Solution Approach 2:
The invention transforms the fixed clamping force parameter into an adjustable parameter that can be optimized for different shaft diameters and surface conditions. This enables reliable locking on low-friction metal surfaces while keeping the operating force within manual capabilities.
3Adaptability or versatility
If adjustable clamping diameter is implemented, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The locking mechanism incorporates a lever-operated adjustment system that dynamically changes the clamping diameter to match different shaft sizes. This dynamic adaptability is achieved through a relatively simple mechanical linkage, minimizing the increase in device complexity while maximizing versatility.
Solution Approach 2:
The adjustable clamping diameter feature makes the locking mechanism universal, capable of securing various shaft diameters with a single device. This multi-functionality is achieved through a compact adjustment mechanism that adds minimal complexity while significantly expanding adaptability.
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 mechanism provides a durable, reliable, and cost-effective solution for secure locking on smooth round shafts, allowing for easy implementation and adjustment, suitable for both forward and backward rotations, while overcoming the limitations of prior art devices.
Implementation Method 1
The mechanical forces associated with centrifugal forces for placing a removable lock on very low friction metal surfaces makes it difficult for it to stay in place
Implementation Method 2
a lever providing tensioning of the clamping ring and vectorially supporting a clamping action through the horizontal dowel pin
Implementation Method 3
The mechanical forces associated with centrifugal forces for placing a removable lock on very low friction metal surfaces
Data Source
AI summary
A retrievable shaft locking mechanism for axial and rotational locking on smooth round shafts with a lever providing tensioning of the clamping ring and vectorially supporting a clamping action through a horizontal dowel pin.