Container Handling Wheel Assembly With External Belt Layout
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Solution Overview
Problem
Existing automated storage and retrieval systems face challenges in efficiently navigating container handling vehicles within the rail grid due to limitations in wheel assembly design, which affects the dynamic characteristics and accessibility of components.
Innovation Solution
The proposed solution involves a wheel assembly for container handling vehicles that includes an outer wheel element and a pulley for a drive belt, with a width equal to or smaller than the width of a rail track, allowing the drive belt to be positioned externally and improving the vehicle's dynamic characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the wheel assembly width is reduced to fit within the rail track width, then the drive belt can be positioned externally and installation space is increased, but the structural stability and load-bearing capacity may be compromised
Solution Approach 1:
The pulley is positioned in the axial direction of the wheel assembly, utilizing the width dimension rather than extending radially outward. This dimensional repositioning allows the drive belt to be arranged externally while keeping the wheel assembly width compact, resolving the contradiction between installation space and structural stability
Solution Approach 2:
The pulley is nested within the axial boundaries of the wheel assembly, with the wheel rim and pulley sharing the same axial space. This nesting arrangement allows both components to coexist within the limited width of the rail track while maintaining external positioning of the drive belt
2Ease of repair
If the drive belt is positioned externally to the vehicle body, then maintenance and replacement are simplified, but the drive belt may be more exposed to external environmental factors and potential damage
Solution Approach 1:
The wheel assembly structure itself acts as an intermediary protective element for the externally positioned drive belt. The compact axial design of the wheel assembly provides a degree of shielding while allowing easy access for maintenance, balancing protection with accessibility
3Speed
If the wheel assembly width is made equal to or smaller than the rail track width, then the vehicle's dynamic characteristics are improved and center of gravity is optimized, but the manufacturing precision requirements increase
Solution Approach 1:
The design specifies that the wheel assembly width should be equal to or smaller than the rail track width, providing a clear parameter range rather than an exact dimension. This parameter change approach allows for manufacturing tolerances while still achieving the desired dynamic characteristics and center of gravity optimization
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 design enhances the dynamic characteristics of the container handling vehicle by increasing the installation space within the vehicle body, improving the center of gravity, reducing rolling mass, and simplifying maintenance and replacement of the drive belt.
Implementation Method 1
a pulley (34) for a drive belt (11)
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
A wheel assembly for a container handling vehicle includes an outer wheel element (50) configured to be received in a track recess, and a pulley (34) for a drive belt (11) wherein the wheel assembly (30) has a width (W2) in an axial direction being equal to or smaller than the width (W3) of the track (17) of the track recess.