Nuclear Emergency Robot Modular Base Tool Change

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Solution Overview

Problem

Current nuclear emergency robots lack miniaturization, folding performance, appropriate ground clearance, and versatility to navigate complex nuclear power plant environments effectively, failing to meet the requirements for safe passage through narrow spaces and quick operation switching.

Innovation Solution

A nuclear emergency multifunctional operation robot is designed with a modular base, a mechanical arm, and a tool change-over device, featuring rotating mechanisms and motion supporting devices that allow for horizontal and vertical movement, enabling the robot to adapt to various tasks and environments by changing tools and adjusting its configuration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If the robot is miniaturized to pass through narrow spaces, then the ability to pass through narrow spaces is improved, but the stability and obstacle crossing performance deteriorate

Engineering Contradiction:
Improverobot sizeVSAvoidstability and obstacle crossing performance
Core Design Contradiction:
Length of moving objectVSReliability

Solution Approach 1:

The robot body is divided into modular components including a base, mounting seats, and mechanical arms that can be independently adjusted. This segmentation allows the robot to maintain a compact form factor for narrow space passage while keeping functional components separate and reconfigurable for stability when needed.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The robot employs adjustable mechanical arms with multiple degrees of freedom and a base with adjustable ground clearance. These dynamic components allow the robot to transition between a compact configuration for passing through narrow spaces and an extended configuration for maintaining stability during operations.

Inventive Principle:
Principle #15Dynamics

2Reliability

If the ground clearance height is increased to cross obstacles, then the obstacle crossing performance is improved, but the robot size increases

Engineering Contradiction:
Improveobstacle crossing performanceVSAvoidrobot size
Core Design Contradiction:
ReliabilityVSLength of moving object

Solution Approach 1:

The base incorporates an adjustable ground clearance mechanism that allows the robot to dynamically change its height. The ground clearance can be increased when obstacle crossing is needed and reduced when miniaturization is required, making the robot adaptable to different operational requirements without permanent size increase.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If multiple tools are integrated to meet complex site requirements, then the versatility is improved, but the device complexity increases

Engineering Contradiction:
Improvefunctional diversificationVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The robot is designed with a universal tool interface system comprising mounting seats and tool change-over devices that can accommodate multiple different tools. This allows a single robot platform to perform diverse functions including cutting, welding, drilling, and inspection by simply changing tools, rather than integrating all functions into one complex system.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The tool system is segmented into separate, interchangeable components mounted on adjustable mounting seats. This segmentation allows tools to be independently selected, replaced, and configured based on specific task requirements, reducing the complexity of any single tool while maintaining overall system versatility.

Inventive Principle:
Principle #1Segmentation

4Length of moving object

If the mechanical arm is extended to reach distant targets, then the operational range is improved, but the folding performance deteriorates

Engineering Contradiction:
Improvemechanical arm reachVSAvoidfolding performance
Core Design Contradiction:
Length of moving objectVSShape

Solution Approach 1:

The mechanical arm employs a multi-segmented design with multiple joints and degrees of freedom, allowing it to dynamically extend to reach distant targets and fold back into a compact configuration for passing through narrow spaces. The arm's articulated structure enables it to adapt its shape based on operational requirements.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11926049B2Nuclear emergency multifunctional operation robot
Publication Date: 2024.03.12 NANHUA UNIV
  • US11926049B2 patent drawing
  • US11926049B2 patent drawing
  • US11926049B2 patent drawing

AI summary

A nuclear emergency multifunctional operation robot includes a base, a mechanical arm, a tool change-over device, and motion supporting devices. The base includes a pedestal, a mounting seat A, a mounting seat B, a mounting seat C, a rotation driving mechanism A, and a rotation driving mechanism B. The front end of the mechanical arm is connected to the mounting seat B; the tool change-over device includes a male connector and a female connector which are abutted with or separated from each other; and the motion supporting devices are used to drive the nuclear emergency multifunctional operation robot to move. The present disclosure has the advantages that the base can be integrated with various end tools, so that the operation robot conveniently changes over tools according to operation needs to conduct various types of operations.