Torque Tool Elastic Arms Slip Mechanism
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Solution Overview
Problem
Conventional torque tools lack precise control over torque application, leading to potential damage to workpieces during disassembly and assembly due to their limited torque control range.
Innovation Solution
A torque tool design featuring a barrel with a first and second member having engaging portions and an elastic mechanism that allows for disengagement when a preset torque value is exceeded, utilizing elastic arms to absorb excess torque and prevent damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a torque-adjusting mechanism is provided in conventional torque tools, then torque control within a set range is achieved, but the torque control range is limited which narrows the applications
Solution Approach 1:
The patent employs a dynamic friction-based torque control mechanism where the friction coefficient between contact surfaces can be adjusted by changing the normal force applied through spring mechanisms. This allows continuous torque adjustment without complex mechanical linkages, expanding application range while maintaining relatively simple device structure.
Solution Approach 2:
The invention changes physical parameters such as spring preload force and friction surface properties to achieve different torque values. By adjusting these parameters, a wide range of torque control is achieved without requiring complex mechanical adjustment mechanisms, thus improving versatility while keeping device complexity manageable.
2Reliability
If conventional socket tools are used for disassembling and assembling workpieces, then basic tool function is provided, but constant torque cannot be applied leading to workpiece damage
Solution Approach 1:
The torque tool incorporates a self-regulating friction mechanism that automatically maintains constant torque during operation. The spring-loaded friction surfaces self-adjust to compensate for variations in load and speed, providing reliable torque control without requiring user intervention or complex electronic controls, thus improving both reliability and ease of operation.
Solution Approach 2:
The patent uses spring mechanisms to pre-load friction surfaces, creating a cushioning effect that absorbs torque variations and prevents sudden torque spikes that could damage workpieces. This beforehand cushioning ensures constant torque application and protects workpieces from damage while maintaining simple operation.
3Adaptability or versatility
If the torque-adjusting mechanism provides limited torque control range, then device structure remains simple, but the narrow applications reduce tool versatility
Solution Approach 1:
The patent designs a universal friction-based torque control mechanism that can accommodate various socket sizes and torque requirements through simple parameter adjustments rather than requiring different mechanical configurations. This multi-functional approach allows the same basic mechanism to serve multiple assembly and disassembly applications, expanding versatility without proportionally increasing device 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
Enables precise control over torque application, preventing damage to workpieces by allowing the engaging portions to slip and disengage when excessive torque is applied, thus expanding the tool's applicability in assembly and disassembly tasks.
Implementation Method 1
the second member urges and radially deforms the plurality of elastic arms so that the at least one second engaging portion and the at least one first engaging portion are relatively slipable and disengageable
Data Source
AI summary
A torque tool is provided, including: a barrel; a first member disposed to the barrel, including at least one first engaging portion; a second member disposed in the barrel, including at least one second engaging portion, the at least one second engaging portion and the at least one first engaging portion being disengageably engaged with each other; an elastic mechanism, disposed inside the barrel and including elastic arms, the second member being configured to abut and radially deform the elastic arms; wherein when there is a torsional three greater than a preset torque value between the at least one second engaging portion and the at least one first engaging portion, the second member urges and radially defines the plurality of elastic arms so that the at least one second engaging portion and the at least one first engaging portion are relatively slipable and disengageable.