Integrated Clutch Claw Structure for Low-Noise Shock Absorption
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Solution Overview
Problem
Conventional clutch structures in multifunction machines experience noise generation and elastic attenuation due to friction between the clutch claw, spring, and metal buckle, and are prone to collision damage from random angle engagement with the transmission system.
Innovation Solution
A clutch claw structure with a claw portion and base portion connected through an elastic portion that provides axial and torsion elastic forces, featuring a compressible bent section to disperse stress and reduce friction, noise, and collision risk, while being integrally formed with the rotating shaft to simplify assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a spring is disposed between the metal buckle and the clutch claw to absorb shock, then collision damage is prevented, but friction between the spring and metal buckle/clutch claw generates noise and causes elastic attenuation
Solution Approach 1:
The patent removes the separate spring component from the clutch structure. Instead of using a spring between the metal buckle and clutch claw, the invention integrates the elastic function directly into the clutch claw body through an elastic portion, eliminating the friction sources while maintaining shock absorption capability
Solution Approach 2:
The elastic portion is integrated with the clutch claw to form a unified structure. The elastic portion includes a claw body and an elastic arm that connects the claw body to the base, merging the clutching function and elastic shock absorption function into a single component, thereby eliminating friction between separate spring and metal buckle interfaces
2Ease of operation
If the clutch claw is combined with the transmission system at a random angle, then engagement is achieved, but impact is generated causing damage
Solution Approach 1:
The elastic portion acts as a dynamic buffer that allows the clutch claw to absorb impact forces during engagement at random angles. The elastic arm can deform elastically to accommodate angular misalignment, transforming rigid impact into flexible deformation that protects the transmission system
Solution Approach 2:
The elastic portion is pre-configured with elastic properties that provide cushioning before impact occurs. When the clutch claw engages the transmission system, the elastic arm is already prepared to absorb shock forces, preventing damage before it can propagate to other components
3Strength
If multiple separate components (clutch claw, spring, metal buckle) are used, then shock absorption is achieved, but device complexity increases and assembly becomes difficult
Solution Approach 1:
The clutch claw, elastic portion, and connection structure are merged into a single integrated component. The elastic portion is formed as part of the clutch claw body, eliminating the need for separate springs and metal buckles, thereby reducing component count and simplifying assembly while maintaining shock absorption functionality
Solution Approach 2:
The integrated clutch claw structure performs multiple functions simultaneously: the claw body engages the transmission system, the elastic arm provides shock absorption, and the base portion connects to the rotating shaft. This multi-functional design eliminates the need for separate specialized components
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 effectively reduces noise and prevents elastic attenuation by uniformly dispersing stress and eliminating friction, while integrating the clutch components to enhance durability and assembly efficiency.
Implementation Method 1
the elastic portion provides axial elastic force between the claw portion and the base portion, thereby preventing collision damage
Implementation Method 2
the elastic portion provides torsion elastic force between the claw portion and the base portion, thereby avoiding the impact and friction generated when the clutch claw is instantaneously rotated
Implementation Method 3
Through disposing the elastic portion having the compressible bent section, the stress can be uniformly dispersed when storing the elastic potential energy, and stress concentration is decreased, thereby avoiding elastic attenuation after long-term use
Data Source
AI summary
A clutch claw applied to a clutch structure having a rotating shaft includes a claw portion, a base portion and at least two elastic portions. The base portion is opposite to the claw portion and has a peripheral edge. The claw portion and the base portion are coaxially disposed on the rotating shaft. Each elastic portion is at least partly disposed around part of the claw portion to provide elastic force. Each elastic portion has a first end and a second end. The first end is connected with the base portion and extended from the peripheral edge, the second end is connected with the claw portion, and there is at least one bent section between the first end and the second end. Therefore, the collision damage is prevented, and the impact and friction generated when the clutch claw is instantaneously rotated is avoided, thereby achieving the advantage of reducing noise.