Friction Transmission Mechanism for Traverser Overload Protection
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Solution Overview
Problem
Existing traversers face issues with safely stopping without auxiliary equipment when overload conditions occur, such as contact with an operator or foreign substances, which can lead to damage or failure due to continuous motor rotation.
Innovation Solution
The traverser incorporates a friction transmission mechanism that transmits rotation driving force to travel rollers using friction, allowing the motor to stop the rotation of the rollers even if they are physically impeded, preventing damage and ensuring safe operation without additional safety equipment like sensors or fences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a traverser uses a motor-driven system to move between two points, then productivity and conveyance capability are improved, but the risk of overload damage from interference with operators or foreign substances increases
Solution Approach 1:
A friction transmission mechanism is introduced as an intermediary between the motor and the travel roller. This friction transmission allows the motor to continue rotating during overload conditions while the travel roller stops, preventing motor damage without requiring complex sensors or safety fences. The friction connection acts as a mechanical mediator that protects the system during interference events.
2Reliability
If auxiliary safety equipment such as sensors or safety fences are installed to prevent overload, then reliability is improved, but device complexity and cost increase
Solution Approach 1:
The friction transmission mechanism provides automatic overload protection without requiring external sensors, controllers, or safety fences. When overload occurs, the friction connection naturally slips and allows the motor to rotate freely while the travel roller stops, providing self-protecting functionality that eliminates the need for complex auxiliary safety equipment.
3Ease of operation
If the motor continues to rotate during overload conditions, then ease of operation is maintained, but damage to the traverser or work increases
Solution Approach 1:
The friction transmission mechanism converts the potentially harmful continuous motor rotation during overload into a beneficial protective feature. The friction connection is designed to slip under overload conditions, allowing the motor to rotate freely without damaging the travel roller or conveyed work. What could be harmful (continuous rotation during interference) becomes a protective mechanism that prevents damage.
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 solution enables the traverser to safely stop and prevent damage by stopping the motor when overload is detected, ensuring continuous operation and reducing the risk of motor failure, thus addressing the need for safe overload management without auxiliary equipment.
Implementation Method 1
a friction transmission mechanism configured to transmit the rotation driving force of the travel motor to the first travel roller by a friction force
Data Source
AI summary
A traverser includes a base unit including a rail member, a moving unit configured to reciprocally move on the rail member between a first position and a second position, and a conveyance unit mounted on the moving unit and configured to convey a conveyance target object. The moving unit include a first travel roller that is a drive roller, and a drive mechanism configured to give a rotation driving force to the first travel roller. The drive mechanism includes a travel motor configured to supply the rotation driving force, and a friction transmission mechanism configured to transmit the rotation driving force of the travel motor to the first travel roller by a friction force.