Tri-Axle Mobile Robot Base for Load Distribution and Rigidity
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Solution Overview
Problem
Existing mobile robots lack a cost-effective and efficient design for distributing weight and load, leading to potential deformations and limited customization for various applications, which restricts their versatility and load-carrying capacity.
Innovation Solution
A mobile robot with a tri-axle wheel arrangement supported by a base module featuring injection-molded plastic composite materials, allowing for efficient weight distribution and load carrying, along with a modular design that includes a unique hub for sensor integration and adjustable motor mounts for different capacity motors, enabling customization for specific applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a traditional mobile robot design is used, then the structure is simple, but the weight distribution is inefficient and causes twisting or deformations
Solution Approach 1:
The mobile robot is divided into modular components including a base module, mid-section module, and head module that can be independently assembled and configured. This segmentation allows for optimized weight distribution across modules while maintaining structural integrity through standardized connection interfaces.
Solution Approach 2:
The patent introduces a tri-axle wheel arrangement with wheels positioned at different spatial coordinates (x, y, z dimensions) rather than a traditional planar configuration. This three-dimensional wheel layout optimizes weight distribution and reduces structural twisting by distributing loads across multiple spatial planes.
2Adaptability or versatility
If the mobile robot is designed for a single application, then the design is simple, but it cannot be customized for multiple applications
Solution Approach 1:
The base module is designed with universal features including standardized motor mounts that accept different motor capacities, interchangeable wheel configurations, and modular sensor integration points. This universality allows the same base module to support multiple application-specific configurations without requiring complete redesign.
Solution Approach 2:
The robot employs dynamic reconfigurability where modules can be added, removed, or swapped based on application requirements. The motor mounts and sensor interfaces are designed to accommodate varying capacities and types, allowing the system to dynamically adapt its configuration for different tasks while maintaining a consistent core platform.
3Strength
If expensive materials and structures are used, then the load-carrying capacity is high, but the production cost increases
Solution Approach 1:
The patent utilizes composite material construction for the base module housing and structural components, combining materials with different properties to achieve high strength-to-weight ratios. This allows the robot to carry substantial loads while using cost-effective material combinations rather than expensive solid metal constructions throughout.
Solution Approach 2:
The design merges multiple functions into integrated components, such as combining the base module housing with mounting structures for motors and sensors, and integrating the tri-axle wheel support structure with the load-bearing frame. This consolidation reduces the total amount of material needed while maintaining load-carrying capacity through efficient structural design.
Data Source
AI summary
The improved mobile robot utilizes a cooperative wheeled support arrangement having a unique axle design that preferably cooperates with a base support module. A tri-axle is preferably used to support at least one omni-wheel on each axle section. Multiple omni-wheels on each section can be used for higher load applications. The tri-axle is of a fixed design and each wheel pivots on the individual axle section. Preferably, the axle sections are welded to each other.