Power Tool Transmission Housing With Nested Vibration Compensator
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Hand-held power tools experience significant vibration during operation, which is not effectively mitigated by existing designs, leading to reduced operator comfort and potential damage due to uncontrolled movement.
Innovation Solution
The compensating unit, comprising a movably mounted compensating mass element and spring elements, is strategically placed within the transmission housing or between the transmission and motor housing, optimizing space usage and reducing vibration by oscillating to counteract tool vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the compensating unit is disposed in the transmission housing or between transmission and motor housing, then vibration amplitudes are reduced and space is optimized, but the structural complexity increases
Solution Approach 1:
The compensating unit is integrated into the transmission housing or positioned between the transmission and motor housing, merging the vibration compensation function with the existing structural components. This integration reduces the need for separate compensation mechanisms while effectively mitigating vibration amplitudes during tool operation.
Solution Approach 2:
The compensating mass element is movably mounted within the transmission housing, nesting the compensation mechanism inside the existing housing structure. This allows the compensating unit to occupy unused space within the transmission housing, reducing overall tool dimensions while maintaining vibration compensation functionality.
2Object-affected harmful factors
If the compensating unit volume is increased to improve vibration compensation, then vibration reduction effectiveness improves, but the tool dimensions increase
Solution Approach 1:
The compensating unit is nested within the transmission housing, utilizing unused internal space for the compensating mass element. This allows adequate compensation mass volume to be achieved without increasing the external dimensions of the hand-held power tool, maintaining compact tool size while effective vibration reduction.
3Ease of manufacture
If the compensating unit is disposed between transmission housing and motor housing, then assembly simplicity is enhanced, but grease quantity required increases
Solution Approach 1:
The compensating unit is integrated with the transmission housing structure, merging the compensation function with the existing lubricated transmission components. This integration allows the compensating unit to benefit from the existing grease lubrication system without requiring additional grease, simplifying assembly while avoiding increased grease quantity.
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 significantly reduces vibration amplitudes, allows for a more compact tool design, minimizes grease usage, and enhances assembly simplicity, resulting in improved operator handling and tool durability.
Implementation Method 1
The compensating mass element is designed to be put into motion, preferably made to oscillate, in order thereby to reduce the vibration amplitudes of the hand-held power tool that occur during operation of the hand-held power tool
Implementation Method 2
The compensating unit comprises at least one housing unit, within which there are disposed at least the movably mounted compensating mass element and at least one spring element
Data Source
AI summary
A hand-held power tool includes at least one transmission housing, at least one single-stage transmission unit, at least one motor housing, and at least one compensating unit. The at least one transmission unit is disposed in the at least one transmission housing. The at least one compensating unit includes at least one movably mounted compensating mass element. The at least one compensating unit is disposed at least for the most part in the at least one transmission housing or between the at least one transmission housing and the at least one motor housing.