Transport Device Vibration Cancellation via Counterweight Control
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Solution Overview
Problem
Existing transport devices experience undesired forces and oscillations, particularly vibrations, due to the drive of their transport elements, which limits their functional range and requires additional control circuits and sensors.
Innovation Solution
A transport device with a control unit that actuates the drive unit based on mass and movement parameters of the transport elements, allowing for friction-free operation in an electromagnetic field and balancing forces between transport elements to minimize vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a drive unit is used to drive transport elements, then transport function is achieved, but undesired forces and vibrations occur
Solution Approach 1:
The patent applies counterweight principle by driving a second transport element in the opposite direction to the first transport element. The drive forces are coordinated such that forces generated by driving the first transport element are compensated by forces from driving the second transport element in the opposite direction, thereby canceling out vibrations and undesired forces acting on the transport device structure.
Solution Approach 2:
The control unit coordinates the drive forces in a periodic or synchronized manner, adjusting the timing and magnitude of drive forces applied to different transport elements to achieve force cancellation. This periodic coordination ensures that peak forces from one element are offset by opposing forces from another element at appropriate time intervals.
2Object-affected harmful factors
If force cancelation systems with constant mass acceleration are used, then vibrations are reduced, but device size and complexity increase
Solution Approach 1:
The transport device uses its own transport elements and drive unit to generate the counteracting forces needed for vibration cancellation. Instead of requiring separate counterweight mechanisms or external force cancellation systems, the system serves itself by coordinating the drive forces of multiple transport elements to achieve force balance, thereby avoiding additional complex control circuits and sensors.
Solution Approach 2:
The drive unit serves multiple functions: it drives the transport elements to perform their primary transport function while simultaneously generating the counteracting forces needed for vibration cancellation. This multi-functionality eliminates the need for separate force cancellation hardware and simplifies the overall control system architecture.
3Productivity
If multiple transport elements are driven independently, then transport capacity increases, but forces and vibrations increase
Solution Approach 1:
The control unit coordinates the drive forces of multiple transport elements in a synchronized periodic manner, timing the application of drive forces to ensure that forces from different elements cancel each other out. This coordination allows multiple elements to operate simultaneously for increased capacity while maintaining force balance to minimize vibrations.
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
The solution enables low-vibration, gentle operation of the transport device, ensuring reliable and precise product transport while reducing the risk of damage to products and sensitive components.
Implementation Method 1
the drive unit generates electromagnetic forces for a drive of the transport element and the further transport element and/or for an electromagnetic linear support or levitation of the transport element and the further transport element
Implementation Method 2
The transport element and/or the further transport element are/is in at least one operation state at least substantially friction-free supported in an electromagnetic field
Data Source
AI summary
A transport device for a transport of products includes a transport unit having at least one transport element and at least one further transport element on which respectively one product can be arranged for transport. The transport device further includes a drive unit for driving the transport element and the further transport element relative to a drive surface of the drive unit. The transport device further includes at least one control unit for an actuation of the drive unit. The control unit has at least one control routine in which the control unit actuates the drive unit for a movement of the further transport element at least depending on a mass parameter and of a movement parameter of the transport element.