Transportation Device Wheel Collimation Linkage
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Solution Overview
Problem
Autonomous carriers face challenges in maintaining favorable collimation due to difficulty in adjusting wheel parallelism, leading to potential deviations from predetermined paths, and issues with driving wheels not touching the ground or auxiliary wheels getting stuck on uneven surfaces.
Innovation Solution
A transportation device with a motor, transmission assembly, position limiting assembly, and linkage assemblies, where all wheels are driven and equipped with a gear set and pulley system, ensuring all wheels have driving capability and maintaining collimation through a system of position limiting boards and elastic members for shock absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If parallelism of the wheels on the two sides of a vehicle is adjusted, then collimation is improved, but the adjustment complexity increases
Solution Approach 1:
The patent employs a dynamic linkage assembly that automatically maintains wheel parallelism through mechanical coupling. The linkage assembly includes pivoting connections that allow the wheels to self-adjust and maintain parallelism during movement, eliminating the need for complex manual adjustment mechanisms while ensuring consistent collimation.
2Reliability
If driving wheels are used on uneven road surfaces, then driving capability is improved, but the wheels may run idle when unable to touch the ground
Solution Approach 1:
The patent designs all wheels as driven wheels with independent drive mechanisms, making each wheel capable of independent operation. This multi-functional design ensures that if one wheel loses ground contact, the other wheels can continue to provide driving force, maintaining the vehicle's mobility and preventing complete system failure on uneven surfaces.
3Stability of the object's composition
If linkage assemblies are extended into the space between position limiting board portions, then collimation stability is improved, but the space requirement increases
Solution Approach 1:
The patent positions the linkage assemblies to extend into the vertical space between the position limiting board portions rather than requiring additional horizontal space. This dimensional arrangement allows the linkage assemblies to effectively maintain wheel parallelism and collimation stability while utilizing the existing spatial configuration efficiently.
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 ensures all wheels have driving capability, maintaining favorable collimation and preventing wheels from getting stuck on uneven surfaces, enhancing stability and centering the center of gravity for improved movement fidelity.
Implementation Method 1
two elastic members respectively disposed between the cover and the two linkage assemblies
Implementation Method 2
The transmission assembly is linked to the motor. The two wheels are respectively linked to the transmission assembly and pivoted to the two linkage assemblies, the two wheels are respectively driven by the motor through the transmission assembly
Implementation Method 3
The gear set includes a driving gear connected to the motor and two driven gears engaged with the driving gear
Implementation Method 4
The pulley set includes two first pulleys, two second pulleys, and two belts. The first pulleys are respectively linked to the driven gears, the belts are respectively sleeved on the first pulleys and the two second pulleys
Data Source
AI summary
A transportation device includes a motor, a transmission assembly, a position limiting assembly, two linkage assemblies, and two wheels. The transmission assembly is linked to the motor. The position limiting assembly includes two position limiting board portions disposed in parallel and adjacent to each other. The two linkage assemblies partially extend into a space between the two position limiting board portions and are pivoted to the two position limiting board portions, respectively. The two linkage assemblies are limited by the two position limiting board portions in a first axis. The two wheels are disposed in tandem along a second axis, respectively linked to the transmission assembly, and pivoted to the two linkage assemblies. The two wheels are driven by the motor respectively through the transmission assembly and are limited by the two linkage assemblies in the first axis. A transportation system including the transportation device is also provided.