Tubular Motor Configurable Coupling for Collision Detection
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Solution Overview
Problem
Existing tubular motors lack flexibility in variant formation, as they are typically designed with a fixed freewheeling mechanism that is not suitable for all applications, and there is a need for a design that allows for both non-rotatable and freewheeling couplings depending on the angular position of the driver relative to the output.
Innovation Solution
The tubular motor design incorporates a configurable coupling system where the angular position of the driver determines whether a non-rotatable or freewheeling coupling is implemented, utilizing a separate coupling element with an anchor-like formation that can be easily locked and released by manual deformation, allowing for various angular positions and adapter pieces to accommodate different output and driver pairings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed freewheeling mechanism is used, then collision detection is enabled, but the device lacks flexibility for different application variants
Solution Approach 1:
The coupling between driver and output shaft is made dynamically configurable through angular position selection. The driver can be attached at different angular positions to achieve either non-rotatable coupling (for collision detection) or freewheeling coupling (for other applications), allowing the same hardware to adapt to different operational requirements.
Solution Approach 2:
The driver-output assembly is designed to perform multiple functions through a single configurable interface. By selecting different angular positions during assembly, the same mechanical components can provide either rigid coupling for collision detection or freewheeling coupling for alternative applications, eliminating the need for separate mechanisms.
2Ease of operation
If a separate coupling element is provided, then ease of assembly and disassembly is improved, but device complexity increases
Solution Approach 1:
The coupling element is integrated into the driver assembly rather than being a completely separate component. The driver itself incorporates the coupling interface that engages with the output shaft, reducing the number of discrete parts while maintaining ease of assembly and disassembly through simple axial insertion and extraction.
Solution Approach 2:
The driver is designed as a separable component that can be independently attached and detached from the output shaft. This segmentation allows the driver to be removed and reattached at different angular positions, facilitating easy reconfiguration without requiring disassembly of the entire motor assembly.
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 design enhances flexibility by enabling the tubular motor to be configured for different applications, allowing for efficient collision detection and easy handling, with the ability to switch between non-rotatable and freewheeling couplings, and supports various angular positions and adapter combinations.
Implementation Method 1
a spring-elastic element, the spring-elastic element having cams which point radially outwards and with which a radial displacement of the driver on the output shaft is prevented
Implementation Method 2
The coupling element has an anchor-like formation which protrudes through an opening of the driver and with which the driver can be fixed axially on the output
Data Source
Figure 1
Figure 2a~2b
Figure 3a~3b
AI summary
The motor has a tubular motor housing (1) fixed over a torque support (5), and an output side coupled with a winding shaft (4) by an actuator (6). The actuator is axially mounted on the output side with respect to an output side axis and relatively towards the output side in different angular positions on the output side. The actuator mounted in a freewheel angular position is coupled with the output side by a freewheel with a freewheel angle in a torque proof manner, where the freewheel position is displaced with respect to a base angular position.