Stator Opening Orientation for Foreign Substance Protection
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Solution Overview
Problem
Existing article conveyance apparatuses are prone to obstruction due to foreign substances invading the motor components, specifically between the stator and slider, which can disrupt the travel of the conveyance carriage.
Innovation Solution
The apparatus features a carriage with a rod-shaped first slider and a drive transmission mechanism that operates under magnetic action, supported by a stator with an opening that prevents foreign substances from entering, and a shielding plate to cover the moving path, ensuring the stator and slider remain protected even when the carriage is not above the stator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the stator is exposed to allow the drive transmission mechanism to pass through, then the device complexity is reduced, but foreign substances can invade the motor components
Solution Approach 1:
The stator is designed with an asymmetric opening configuration where the opening direction is oriented such that the internal cavity is not visible from the top view. This asymmetric arrangement allows the drive transmission mechanism to pass through while the opening's orientation prevents foreign substances from directly entering the motor components from above.
Solution Approach 2:
The opening acts as an intermediary structure that selectively allows the drive transmission mechanism to pass through while blocking foreign substances. The specific orientation of the opening serves as a geometric filter that permits necessary components to pass while preventing harmful foreign substances from accessing the motor interior.
2Productivity
If multiple carriages are connected continuously, then productivity is improved, but the number of empty carriages increases
Solution Approach 1:
The conveyance system is segmented into multiple independent carriages that can travel freely and independently along the travel path. Each carriage operates as an independent unit, allowing them to be distributed along the path rather than connected continuously, which reduces the probability of empty carriages while maintaining overall productivity.
Solution Approach 2:
The carriages are designed to move dynamically and independently along the travel path rather than being rigidly connected. This dynamic independence allows carriages to adjust their positions and movements autonomously, reducing empty carriage occurrences while maintaining efficient conveyance operations.
3Ease of operation
If the opening is positioned to allow drive transmission, then ease of operation is improved, but foreign substances can more easily enter
Solution Approach 1:
The opening is positioned and oriented asymmetrically such that the internal cavity of the stator is not visible from the top view. This asymmetric positioning allows the drive transmission mechanism to access the interior through the opening while the orientation specifically prevents foreign substances from entering from above, resolving the contradiction between ease of operation and foreign substance protection.
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 configuration effectively blocks foreign substances from entering the motor components, preventing obstruction and ensuring continuous operation, even when carriages travel independently and intervals occur, reducing empty carriage occurrences and enhancing reliability.
Implementation Method 1
a first stator disposed in a position corresponding to the transfer space to apply magnetic action to the first slider in the carriage located in the transfer space to operate the first slider
Implementation Method 2
An article conveyance apparatus including a conveyance carriage that is provided with a transfer conveyor and travels on a travel path according to a thrust generated by a linear motor
Data Source
AI summary
An article conveyance apparatus includes a carriage which travels along a predetermined travel path, and an on-ground facility including a pair of traveling rails which define the travel path. The carriage includes a first slider which operates according to magnetic action to drive a transfer mechanism, and a drive transmission mechanism which supports the first slider and transmits a driving force from the first slider to the transfer mechanism. The on-ground facility includes a first stator which applies magnetic action to the first slider in the carriage to operate the first slider. The first stator includes an opening through which the drive transmission mechanism of the carriage passes. The opening is disposed in a position such that the inside of the first stator is not seen from the opening in top view of the first stator.