Segmented Torque Wrench with Detachable Driving Arm
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Solution Overview
Problem
Commercialized click-type torque wrenches for large-scale machinery are cumbersome for storage due to their size and require multiple sockets for various nut specifications, making them costly and space-ineffective, with no existing dismountable options due to complex mechanisms.
Innovation Solution
A torque wrench design featuring a hollow body with a clutch mechanism, a force-applying member, and a driving arm, allowing for interchangeable driving arms and sockets, enabling flexible moment arms and easy storage by being dismountable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If click-type torque wrenches are designed for large-scale machinery with various nut specifications, then the wrenches can handle different sizes of nuts (1/4'', 3/8'', 1/2'', 3/4'', or 1''), but multiple kits of sockets and click-type torque wrenches in various dimensions are required, making them costly and space-ineffective
Solution Approach 1:
The torque wrench is designed with a universal structure that can accommodate multiple nut specifications (1/4'', 3/8'', 1/2'', 3/4'', or 1'') through a single device. The hollow body design allows different driving arms to be inserted, and the clutch mechanism can be adjusted to provide accurate torque control for various fastener sizes, eliminating the need for multiple specialized wrenches
Solution Approach 2:
The torque wrench is divided into separable components including the hollow body, clutch mechanism, force-applying member, and detachable driving arm. This segmentation allows the driving arm to be removed and replaced based on the specific nut size required, providing versatility while maintaining a compact storage form when components are disassembled
2Force
If click-type torque wrenches are designed for large-scale machinery, then they can provide sufficient torque for big machinery maintenance, but they become cumbersome for storage due to big size, typically being a dimension of about 1 m to 2 m
Solution Approach 1:
The torque wrench is segmented into a compact hollow body housing the clutch mechanism and a separate detachable driving arm. When not in use, the driving arm can be removed and the hollow body stored separately, dramatically reducing storage space requirements while maintaining full torque capability when assembled for large-scale machinery maintenance
3Reliability
If click-type torque wrenches are designed with a complex mechanism to provide accurate torque control, then they can prevent over-torquing and protect fasteners, but none of the known click-type torque wrenches is dismountable
Solution Approach 1:
The complex clutch mechanism is contained within a fixed hollow body that provides accurate torque control, while the simpler driving arm is made detachable. This segmentation allows the sophisticated torque-control mechanism to remain integrated for reliability, while the external driving arm becomes modular for ease of storage and adaptation to different fastener sizes
Data Source
AI summary
A torque wrench includes a hollow body, a clutch mechanism, a force-applying member, and driving arms. The clutch mechanism is mounted in the hollow body. The force-applying member is pivotally mounted in the hollow body. Each of driving arms has a coupling end is detachably mounted at the second end of the force-applying member and a driving end for driving a workpiece, wherein each of the driving arms is coaxial to the force-applying member when the coupling end thereof is mounted at the second end of the force-applying member, and wherein the interchangeable driving arms are different in length from each other.