Torsion Output Tool Planetary Gear Locking Mechanism
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Solution Overview
Problem
Existing electrical tools require frequent switching between drilling and screwing modes, leading to reduced operational efficiency and tool lifespan due to the need for multiple tools.
Innovation Solution
A torsion output tool with a transmission assembly including a planetary gear train and locking mechanism, allowing for seamless switching between drilling and impact modes by adjusting the central wheel position, enabling the same tool to function as both a drill and screwdriver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple electrical tools are used for drilling and screwing operations, then functional versatility is improved, but device complexity and operational efficiency deteriorate due to frequent tool switching
Solution Approach 1:
The patent implements a universal electrical tool that combines both drilling and screwing functions in a single device. The tool features a transmission assembly with a hammer mechanism that can operate in two modes: continuous rotation for drilling and intermittent impact for screwing. By integrating multiple functions into one tool, the patent eliminates the need for frequent tool switching, thereby improving operational efficiency while maintaining functional versatility.
2Adaptability or versatility
If multiple electrical tools are used for drilling and screwing operations, then functional versatility is improved, but device complexity deteriorates due to managing multiple tools
Solution Approach 1:
The patent merges the functions of separate drilling and screwing tools into a single integrated device. The transmission assembly combines a continuous rotation mechanism for drilling with a hammer impact mechanism for screwing, both controlled through a unified system. This consolidation reduces the number of separate devices needed while maintaining the complexity manageable through shared components and control systems.
3Adaptability or versatility
If frequent tool switching is required, then functional versatility is improved, but reliability deteriorates due to reduced tool lifespan
Solution Approach 1:
The patent creates a universal tool designed to perform both drilling and screwing operations, eliminating the need for frequent tool switching. The transmission assembly is engineered to handle both continuous rotation and intermittent impact loads, reducing wear and tear associated with frequent switching between specialized tools. This extends the operational lifespan of the tool while maintaining functional versatility.
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
Enables efficient operation in both drilling and screwing modes without the need for tool changes, enhancing operational efficiency and extending tool life by allowing a single tool to handle multiple tasks.
Implementation Method 1
a first planetary gear train for driving the main shaft, and a locking shaft. The first planetary gear train includes a first planetary gear carrier rotatably disposed in the housing, a first level planetary gear rotatable relative to the first planetary gear carrier, a first inner ring gear disposed outside the first level planetary gear and meshing with the first level planetary gear
Implementation Method 2
A locking member is arranged to slide synchronously with the first central wheel and rotate synchronously with the first planetary gear carrier. In this manner, when the first central wheel is at the first position, the locking member locks the relative circumferential positions of the output shaft and the first planetary gear carrier
Data Source
AI summary
A torsion output tool has a housing, a motor and a transmission assembly. The transmission assembly includes a first planetary gear train. The first planetary gear train has a first planetary gear carrier, a first level planetary gear, a first inner ring gear disposed outside the first level planetary gear and meshing therewith, and a first central wheel sliding in a direction of a first axis to a first position and a second position. The transmission assembly further has a locking member. The locking member slides synchronously with the first central wheel and only locks the relative circumferential positions of the output shaft and the first planetary gear carrier when the first central wheel is at the first position and only constitutes circumferential engagement with the first planetary gear carrier when the first central wheel is at the second position to achieve a drilling mode and an impact mode of operation for the tool.