Torque Output Shaft Lock Spacer for Accurate Locking Post Positioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The non-planar surface of the drive wheel in contact with locking posts in torque output tools leads to tilting and inaccurate positioning of the locking posts, affecting the ability to accurately mount or detach accessories.
Innovation Solution
A spacer is introduced between the drive wheel and the shaft lock ring to separate the locking posts, featuring a flat surface and extension portions that contact the locking posts, stabilizing their movement and improving accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the drive wheel surface has pits for strength requirements, then the drive wheel meets strength requirements, but the locking posts tilt and cannot be accurately positioned
Solution Approach 1:
A spacer is introduced as an intermediary component between the drive wheel and the shaft lock ring. The spacer provides a flat contact surface for the locking posts, mediating between the pitted drive wheel surface and the locking posts to ensure accurate positioning while allowing the drive wheel to maintain its pitted surface for strength requirements.
Solution Approach 2:
The contact surface for locking posts is segmented from the drive wheel by introducing a separate spacer component. This segmentation allows the drive wheel to have pits for strength while the spacer provides a dedicated flat surface for precise locking post positioning.
2Device complexity
If the locking posts directly contact the pitted drive wheel surface, then the structure is simple, but the locking posts tilt and cannot be accurately pushed to locking position
Solution Approach 1:
The spacer acts as a mediator between the drive wheel and locking posts, providing a reliable flat contact surface that ensures accurate positioning and reliable locking, while adding minimal complexity to the overall transmission assembly structure.
3Volume of moving object
If no spacer is used, then the device structure is compact, but the locking posts experience tilting and inaccurate positioning
Solution Approach 1:
A compact spacer is introduced as an intermediary component that provides a flat contact surface for accurate locking post positioning without significantly increasing the overall volume of the transmission assembly. The spacer's simple annular gasket design with extension portions minimizes space requirements while ensuring precise positioning.
Data Source
AI summary
A torque output tool includes a housing; an electric motor disposed in the housing; an output shaft capable of being connected to a working accessory and driving the working accessory to rotate; and a transmission assembly. The transmission assembly includes a drive wheel drivable by the electric motor to drive the output shaft to rotate about a first axis; a shaft lock ring disposed around the output shaft; and multiple locking posts disposed in the shaft lock ring and around the output shaft. The torque output tool further includes a spacer disposed between the drive wheel and the shaft lock ring and used for separating the locking posts from at least part of the drive wheel.