Overhead Carrier Lifter Arm Structure for Vibration Damping
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Solution Overview
Problem
Conventional overhead transport vehicles with multiple spring members, shaft members, and supports for suspension systems result in a complex configuration, which can lead to increased vibration and instability.
Innovation Solution
The overhead transport vehicle employs a simplified configuration with left and right supports attached to suspensions, each supporting a base portion via an elastic body, and connected by arms with rotation shafts, allowing for reduced vibration through a C-shaped connection structure and elastic bodies, which are positioned differently from suspension points to enhance stability and compactness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If multiple spring members, shaft members, and supports are provided for one suspension member, then vibration isolation is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple vibration isolation functions into a single elastic body. Instead of using multiple separate spring members, shaft members, and supports as in conventional designs, this invention uses one elastic body that performs the vibration isolation function for the entire suspension member, thereby reducing configuration complexity while maintaining vibration isolation effectiveness
Solution Approach 2:
The elastic body serves multiple functions simultaneously: it acts as a vibration isolator, provides structural support, and enables the base portion to be swingable. This multi-functional design replaces the need for multiple specialized components, achieving both vibration reduction and simplified configuration
2Object-affected harmful factors
If multiple elastic bodies are provided for vibration isolation, then vibration reduction is improved, but device complexity increases
Solution Approach 1:
The patent merges the vibration isolation functions that would traditionally require multiple elastic bodies into a single elastic body. This single component is positioned to effectively isolate vibrations at the base portion while supporting the entire lifting unit, thereby reducing the number of elastic bodies from multiple to one
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 effectively reduces or prevents vibration at the base portion with a simpler design, providing enhanced stability and compactness by minimizing the number of elastic bodies and support positions, while maintaining damping properties.
Implementation Method 1
the elastic body is provided between the base portion and each of the left support and the right support, thus reducing or preventing vibration in the base portion
Implementation Method 2
The second rotation shaft may include a rubber bush as a bearing. With this configuration, vibration damping properties can be provided in the left arm and the right arm
Data Source
AI summary
An overhead transport vehicle includes a lifter to be raised and lowered by a plurality of suspensions on left and right sides. The lifter includes a base portion, a left support and a right support attached to lower ends of the suspensions and each supporting the base portion via an elastic body, and a left arm and a right that are respectively bridged between the left support and the base portion and between the right support and the base portion, and each including a first end attached to each of the left support and the right support via a first rotation shaft and a second end attached to the base portion via a second rotation shaft.