Insulated Elastic Wheel Structure for High-Temperature Robots

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Solution Overview

Problem

Existing high-temperature resistant wheels for robots are either heavy and rigid or require complex cooling systems, limiting their performance and application in high-temperature environments due to issues like high-temperature creep and oxidation corrosion.

Innovation Solution

A high-temperature resistant wheel design featuring an elastic hub assembly with integrated heat insulating layers and a rigid wheel barbed ring, which isolates the hub from external heat without external cooling, utilizing ceramic or fiber woven bushings for power transmission and a spiral curved spoke design for elasticity and shock absorption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the structural dimensions are increased to reduce stress and weaken high-temperature creep influence, then the high-temperature resistance is improved, but the weight increases and the structure becomes rigid without elasticity

Engineering Contradiction:
Improvehigh-temperature resistanceVSAvoidwheel weight
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The patent employs composite materials including heat-resistant alloys and ceramic coatings to create a wheel structure that maintains high strength at elevated temperatures without requiring increased dimensions. The composite construction allows the wheel to resist thermal creep and oxidation while preserving structural efficiency and weight characteristics.

Inventive Principle:
Principle #40Composite materials

2Reliability

If the structural dimensions are increased to reduce stress and weaken high-temperature creep influence, then the high-temperature resistance is improved, but the structure becomes rigid without elasticity

Engineering Contradiction:
Improvehigh-temperature resistanceVSAvoidstructural elasticity
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The composite material system enables the wheel to maintain elastic properties at high temperatures by combining heat-resistant metals with ceramic components that preserve structural flexibility. This allows the wheel to absorb shocks and vibrations while resisting thermal degradation.

Inventive Principle:
Principle #40Composite materials

3Reliability

If a cooling system is introduced to maintain low operating temperature, then the material mechanical properties are maintained, but the device complexity increases and additional cooling substances are required

Engineering Contradiction:
Improvematerial mechanical propertiesVSAvoidcooling system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The wheel structure incorporates self-cooling features through its geometric design and material properties, allowing it to dissipate heat passively without requiring external cooling systems. The structure itself serves the cooling function through optimized thermal pathways and heat dissipation surfaces.

Inventive Principle:
Principle #25Self-service

4Reliability

If a cooling system is introduced to maintain low operating temperature, then the material mechanical properties are maintained, but additional substances are required to absorb heat

Engineering Contradiction:
Improvematerial mechanical propertiesVSAvoidcooling substance quantity
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The wheel design eliminates the need for external cooling substances by incorporating passive heat dissipation mechanisms into the structure itself. The geometric configuration and material selection enable natural convection and radiation cooling without requiring additional fluids or substances.

Inventive Principle:
Principle #25Self-service

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 enhances structural strength and service life by maintaining performance similar to traditional tires in high-temperature environments without external cooling, reducing weight and volume, enabling extended application of high-temperature resistant robots.

Implementation Method 1

an elastic hub assembly integrated with a heat insulating layer for isolating the elastic hub assembly from external high temperature

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 2

the elastic hub assembly comprises an outer cage, an outer heat insulating layer, an elastic hub plate, an inner heat insulating layer, and an inner cage

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP3858640B1High temperature-resistant wheel
Publication Date: 2023.11.15 BEIJING LESEN TECH CO LTD
  • EP3858640B1 patent drawingFigure 1~2
  • EP3858640B1 patent drawingFigure 3~4
  • EP3858640B1 patent drawingFigure 5~6

AI summary

A high temperature-resistant wheel, comprising: an elastic hub assembly (1), which has a thermal insulation layer integrated therewith so as to insulate the elastic hub assembly (1) from exterior high temperatures; and a rigid wheel barbed ring (2), which has the elastic hub assembly (1) fastened inside and rotates together with the elastic hub assembly (1). A robot, which comprises the high temperature-resistant wheel.