Conveying Device With Magnetic Drive Roller
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Solution Overview
Problem
Conventional conveyor devices require a large number of drive rollers to reliably move transport units, especially heavy and extended units, with significant slippage issues due to the dependence of conveying force on the weight of the unit.
Innovation Solution
The conveyor device employs a drive roller with a rotatable axis that can be displaced relative to the carrier, equipped with a force-generating means such as a hydraulic, pneumatic, or mechanical spring to create a contact pressure force independent of the unit's weight, allowing for reduced roller numbers and separate load-bearing and drive functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional conveyor devices use multiple drive rollers to move heavy transport units, then the conveying force is sufficient to move the units, but the number of drive rollers must be large and slippage occurs due to weight-dependent force transmission
Solution Approach 1:
The patent replaces the conventional weight-dependent friction-based mechanical drive with a magnetic drive system. The magnetic drive unit generates magnetic fields that directly interact with the transport unit, eliminating the need for multiple rollers and providing reliable force transmission independent of the transport unit's weight. This substitution of mechanical friction-based transmission with magnetic field-based actuation resolves the contradiction between conveying reliability and device complexity.
Solution Approach 2:
The patent changes the fundamental parameter of force transmission from weight-dependent friction (mechanical contact) to weight-independent magnetic interaction. By using magnetic fields instead of mechanical friction, the conveying force becomes independent of the transport unit's weight, allowing reliable movement with fewer drive units and eliminating slippage issues.
2Reliability
If drive rollers are increased in number to reduce slippage, then conveying force transmission improves, but the device complexity and cost increase
Solution Approach 1:
The patent substitutes mechanical friction-based force transmission with magnetic field-based force transmission. The magnetic drive unit creates magnetic fields that directly act on the transport unit, providing reliable force transmission without requiring multiple rollers or depending on weight-based friction, thus improving reliability while reducing device complexity.
3Device complexity
If conventional drive rollers rely on transport unit weight for conveying force, then the structure is simple, but the conveying force is insufficient for heavy and extended units
Solution Approach 1:
The patent changes the force generation mechanism from weight-dependent friction to weight-independent magnetic interaction. The magnetic drive unit generates conveying force through magnetic fields that directly interact with the transport unit, providing sufficient force for heavy and extended units without requiring complex multi-roller structures or depending on the transport unit's weight.
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 enables reliable and efficient movement of heavy transport units with reduced slippage and the ability to move units autonomously, as demonstrated by the successful conveyance of skids up to 7 meters long with fewer drive rollers compared to conventional systems.
Implementation Method 1
They transfer force to a transport unit by means of friction. This force acts as a conveying force.
Data Source
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AI summary
The invention relates to a conveying device (1) for moving a transport unit (3) having at least one running section (4, 5). The running section (4, 5) can be in particular designed as a runner of a skid. The conveying device (1) according to the invention has a carrier (6, 8) which receives the weight of the transport unit (3) on the running section (4, 5). The conveying device (1) comprises at least one drive roller (20) interacting with the running section (4, 5) of the transport unit (3) for a rolling movement, which loads the transport unit (3) with a force F? for moving along the carrier (6, 8). The drive roller (20) is operationally connected to a force generation means (44) for providing a pressing force Fp pressing the drive roller (20) against the running section (4, 5) of the transport unit (3).