Resilient Rotary Encoder Coupling for Heavy-Load Turntables
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Solution Overview
Problem
Existing transport systems with heavy loads experience mechanical damage to rotary encoders due to small movements of the turntable not aligned with the intended axis, leading to inaccurate control and potential encoder failure.
Innovation Solution
A driven transport chassis with a resiliently connected rotary encoder that absorbs small movements through a spring-loaded connection, allowing precise rotational measurement without mechanical damage, using a gear wheel design with resilient teeth and a belt or chain connection to transmit motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the rotary encoder is rigidly connected to the turntable, then the measurement precision is improved, but the reliability deteriorates due to mechanical damage from unintended movements
Solution Approach 1:
The patent applies beforehand cushioning by introducing a resilient connection between the rotary encoder and turntable that anticipates and absorbs unintended movements before they can damage the encoder. The resilient element acts as a protective cushion that allows the encoder to float and accommodate movements in directions other than the intended rotation axis, thereby preventing mechanical damage while maintaining measurement capability.
2Strength
If the turntable is made rigid to support heavy loads, then the strength is improved, but the measurement precision deteriorates due to transmission of unwanted movements to the encoder
Solution Approach 1:
The patent applies segmentation by separating the turntable into functionally independent components: a rigid turntable structure for supporting heavy loads and a resiliently connected rotary encoder for precise measurement. This segmentation allows the turntable to be optimized for strength while the encoder is protected from the rigidity-induced unwanted movements through the resilient connection.
3Reliability
If the rotary encoder is resiliently connected to the turntable, then the reliability is improved by preventing mechanical damage, but the measurement precision may deteriorate due to connection flexibility
Solution Approach 1:
The patent applies local quality by making the connection locally resilient while maintaining global rigidity for measurement. The resilient element is strategically positioned to absorb only unintended movements (perpendicular to rotation axis) while allowing precise rotational measurement to pass through unchanged. This localized application of resilience preserves measurement precision in the critical rotational direction while providing protection against damage from non-rotational movements.
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 effective and damage-free control of heavy loads, allowing precise rotational measurement and compensation for unintended movements, ensuring accurate and durable operation of the transport system.
Implementation Method 1
The rotary encoder is resiliently operatively connected to the turntable bolt. The spring-loaded connection allows the turntable, in particular the turntable bolt, to perform small movements without causing mechanical damage to the rotary encoder.
Data Source
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AI summary
The invention relates to a driven transport chassis (1) with a frame (2), with a drive unit (6, 7) operatively connected to the frame (2), and with a turntable (11) operatively connected to the frame (2), wherein the turntable (11) is provided for supporting a load (12) to be transported, and wherein the turntable (11) is rotatable relative to the frame (2), wherein the driven transport chassis (1) comprises a rotary encoder (18), wherein the rotary encoder (18) detects the angle of rotation and/or the change in the angle of rotation of the turntable (11) relative to the frame (2), and that the rotary encoder (18) is operatively connected to the turntable (11) in a resilient manner.