Handheld Tool Balancing Block Layout for Multi-Source Vibration
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Solution Overview
Problem
Existing hand-held machine tools experience complex vibrations due to multiple moving components, which are not adequately addressed by current vibration-balancing solutions that only consider the linear reciprocating component, leading to suboptimal vibration balancing and increased operational difficulty.
Innovation Solution
A hand-held machine tool design incorporating a first moving component with a linear reciprocating motion and a second moving component with a different movement state, along with a balancing block that moves in a direction orthogonal to both, optimizing stability by canceling out vibrations through a linked-movement mechanism and guide member structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a balancing block is provided that reciprocates in a direction intersecting the movement direction of the linearly reciprocating component, then partial vibration balancing is achieved, but the overall vibration balance is insufficient
Solution Approach 1:
The patent positions the balancing block's movement in a completely different plane rather than using an intersecting direction. This spatial separation in three dimensions allows the balancing block to effectively counteract the inertia forces of both the first moving component (linearly reciprocating) and the second moving component (with different movement state) simultaneously, achieving comprehensive vibration balance and improving operational stability.
2Device complexity
If vibration balancing is achieved by considering only the linearly reciprocating component, then the structure is simple, but the vibration-balancing effect is far from ideal
Solution Approach 1:
The balancing block is designed to serve multiple functions simultaneously: it balances the vibration from the linearly reciprocating first moving component and also balances the vibration from the second moving component with a different movement state. By positioning the balancing block in a different plane with non-parallel, non-intersecting directions, a single component achieves multi-functional vibration balancing, improving the overall effect without proportionally increasing structural complexity.
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 design effectively balances vibrations, enhancing operational stability and precision by ensuring the balancing block's movement counters the inertia forces of both primary and secondary vibration sources, reducing unwanted vibrations near the hand-grip region.
Implementation Method 1
a balancing block, with a linear movement direction of the balancing block being a second direction in a different plane from that of the first direction, and a movement pace of the balancing block being opposite to that of the first moving component
Data Source
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AI summary
The present invention relates to a hand-held machine tool. The hand-held machine tool comprises: a first moving component as a main vibration source, the first moving component reciprocating substantially in a straight line in a first direction; a second moving component as a secondary vibration source, the second moving component having a movement state different from that of the first moving component; and a balancing block, with a linear movement direction of the balancing block being a second direction in a different plane from that of the first direction, and a movement pace of the balancing block being opposite to that of the first moving component.