Eccentric Roller Tensioning Assembly for Uniform Rail Contact
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Solution Overview
Problem
Conventional linear rail systems in robotic automation equipment face challenges in maintaining uniform contact force between rollers and the rail, leading to vibrations and loss of precision due to dynamic forces and surface irregularities.
Innovation Solution
The introduction of an adjustable roller assembly with an eccentric bushing, suspension element, and adjustment collar that allows for dynamic adjustment of the contact force between fixed and adjustable rollers, ensuring constant uniform contact despite changing forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional tensioning mechanisms are used, then the structure is simple, but the contact force cannot be maintained uniformly throughout travel
Solution Approach 1:
The roller assembly incorporates a dynamic adjustment mechanism with an adjustable roller that can be positioned at different locations along the rail. This allows the contact force to be dynamically adjusted and maintained uniformly throughout the travel distance, compensating for changes in dynamic forces and surface irregularities while improving reliability without excessive complexity
Solution Approach 2:
The invention changes the parameter of roller position along the rail by providing an adjustable roller that can be located at different positions. This parameter change enables the system to maintain uniform contact force despite varying dynamic forces, resolving the contradiction between contact force uniformity and mechanism complexity
2Measurement precision
If fixed roller position is used, then the structure is simple, but vibrations and loss of precision occur
Solution Approach 1:
The adjustable roller allows the system to dynamically adapt to varying conditions during travel, maintaining precise position control by adjusting the roller position as needed. This dynamic capability eliminates vibrations and position loss while keeping the adjustment mechanism relatively simple
Solution Approach 2:
The roller assembly is designed to self-adjust and maintain uniform contact force through its adjustable mechanism, enabling the system to compensate for dynamic forces and surface irregularities without external intervention, thereby improving precision without complex control systems
3Stability of the object's composition
If conventional tensioning mechanisms are used, then the device is simple, but the roller position varies throughout travel
Solution Approach 1:
The adjustable roller mechanism enables the system to maintain stable roller position throughout travel by dynamically adjusting the roller location along the rail. This dynamic adjustment capability ensures position stability while keeping the tensioning mechanism design relatively simple and practical
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 adjustable roller system provides enhanced stability and operational efficiency by allowing for quick and easy adjustments to maintain uniform contact force, improving stability and precision in robotic automation systems.
Implementation Method 1
a suspension element comprising an inner core and an outer sleeve torsionally elastically coupled to the inner core
Data Source
AI summary
An adjustable roller assembly for a linear rail system carriage has an indexing collar, an eccentric bushing, an adjustable roller, a suspension element, and an adjustment collar. The indexing collar has a first indexing structure. The adjustable roller is rollably mounted to a roller side end of the eccentric bushing. A rolling axis of the adjustable roller is offset from the axis of the adjustable roller assembly. The suspension element is mounted in axial alignment with an adjustment side end of the eccentric bushing. The adjustment collar has a circumferential flange having a second indexing structure. The first indexing structure and the second indexing structure are coupled to rotationally couple the adjustment collar with the suspension element.