Oscillating Power Tool Housing Isolation for Vibration Damping
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Solution Overview
Problem
Power tools, especially oscillating tools, generate significant vibration during operation, leading to instability and user fatigue due to transmitted vibrations, affecting workpiece processing and efficiency.
Innovation Solution
A power tool design incorporating a damping system with first and second vibration isolation planes and blocks between two housings, which reduces vibration transmission from the vibrating body to the handle, improving damping performance and user comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an oscillating tool uses an eccentric transmission assembly to generate oscillation, then the oscillation function is achieved, but large vibration is generated affecting stability and user comfort
Solution Approach 1:
The housing is divided into a first housing and a second housing that are spaced apart to form a damping cavity. This segmentation isolates the vibration source (eccentric transmission assembly in the first housing) from the user's hand (second housing), reducing vibration transmission while maintaining oscillation functionality.
Solution Approach 2:
A damping cavity is introduced as an intermediary space between the first housing and second housing. This cavity acts as a mediator to absorb and reduce vibration transmission from the oscillation-generating components to the user's hand, while allowing the oscillation function to operate effectively.
2Object-affected harmful factors
If vibration is reduced through housing spacing, then user comfort is improved, but structural complexity increases
Solution Approach 1:
The damping cavity serves multiple functions: it reduces vibration transmission, provides structural support through connection portions, and can accommodate additional components. This multi-functionality reduces the need for separate vibration isolation components, thereby limiting the increase in structural complexity.
Solution Approach 2:
The connection portions between the first and second housings use flexible or elastic materials that can deform to absorb vibration while maintaining structural integrity. This approach reduces vibration transmission without requiring complex rigid structures.
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 damping system effectively reduces vibrations transmitted to the user, enhancing tool stability and processing results while minimizing user fatigue, thus improving work efficiency and cutting performance.
Implementation Method 1
the power tool is provided with a first vibration isolation plane and a second vibration isolation plane; the first vibration isolation plane is provided with a first vibration isolation block, and the second vibration isolation plane is provided with a second vibration isolation block; a whole composed of the first vibration isolation block and the second vibration isolation block is at least provided with a spacing portion provided between the first housing and the second housing
Data Source
AI summary
A power tool includes: a power assembly including a motor, the motor including a motor shaft rotatable about a motor axis; an output assembly including an output shaft; a transmission assembly; a first housing; a second housing; wherein the power tool is provided with a first vibration isolation plane and a second vibration isolation plane; the first vibration isolation plane is provided with a first vibration isolation block, and the second vibration isolation plane is provided with a second vibration isolation block; the whole composed of the first vibration isolation block and the second vibration isolation block is at least provided with a spacing portion between the first housing and the second housing; the second housing is spaced apart from the first housing at the spacing portion; the first vibration isolation block and the second vibration isolation block are separated from each other.