Six-Legged Robot Head Rotation for Faster Turning and Stable Gait
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Solution Overview
Problem
Existing multi-legged robots face inefficiencies in turning, stability issues, and reduced service life due to slow movement and difficulty in maintaining ground contact detection, leading to high costs and low operational efficiency.
Innovation Solution
A six-legged universal walking robot with a machine body structure featuring a rotating head with a distance measurement camera, a gear-driven turntable, and leg structures with servo motors and limit switches for enhanced mobility and ground contact detection, allowing for flexible 360-degree rotation without moving the machine body and ensuring stable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the robot turns around by marking time using multi-legged gait, then the robot can change direction, but the turning process consumes relatively long time and causes low efficiency
Solution Approach 1:
The patent extracts the turning function from the body movement and assigns it to the head portion. The head can rotate 360 degrees independently while the body remains stationary, allowing the robot to change its facing direction without consuming time on body repositioning maneuvers.
Solution Approach 2:
Instead of moving the entire body to turn around, the patent inverts the approach by keeping the body fixed and rotating only the head portion. This reversal of the traditional turning mechanism dramatically reduces turning time while maintaining full directional capability.
2Adaptability or versatility
If the robot uses multi-legged gait for movement, then the robot can adapt to various complex terrains, but the machine body is very hard to keep steady
Solution Approach 1:
The patent segments the robot into functionally independent parts: a stable body portion and a movable head portion. The body remains stationary and stable, while the head handles all directional changes and sensing operations, thereby maintaining body stability while preserving terrain adaptability through the six-legged gait.
Solution Approach 2:
The head portion acts as an intermediary between the stable body and the external environment. It rotates to survey different directions and detect terrain conditions, allowing the body to remain steady while still achieving adaptability through the head's rotational capability.
3Device complexity
If the feet do not automatically detect whether they touch the ground or not, then the structure is simpler, but the working state may be affected and the service life may be influenced if the feet failing in touch with the ground are not founded and repaired in time
Solution Approach 1:
The patent implements self-service detection by equipping each foot with a limit switch that automatically detects ground contact status. The system monitors itself without external intervention, immediately identifying when a foot fails to touch the ground, thereby maintaining reliability while keeping the detection mechanism relatively simple.
Solution Approach 2:
The limit switches provide continuous feedback about the ground contact status of each foot to the control system. This feedback mechanism enables real-time monitoring of foot functionality, allowing the robot to detect and respond to foot failures promptly, thus extending service life through timely maintenance.
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 enables efficient and stable operation, reducing time consumption and increasing service life by allowing flexible rotation and reliable ground contact detection, thus improving the robot's efficiency and usability in various environments.
Implementation Method 1
The driving mechanism is a gear driving mechanism, and includes a driving wheel and a driven wheel which mesh with each other for transmission
Implementation Method 2
The lower end of the rotating shaft is inserted into a shaft sleeve in which an electric brush matched and electrically connected with the conductive sliding rings is arranged
Implementation Method 3
the feet failing in touch with the ground do not be founded and repaired in time
Data Source
AI summary
A six-legged universal walking robot and main structure thereof. The main structure comprises a head portion and a machine body. A distance measuring camera device is provided within the head portion, and comprises a rotating head and a frontal face distance measuring assembly. The machine body is provided with a turntable, and the rotating head is fixed to the turntable. A driving mechanism and a main control circuit board are mounted within an internal cavity of the machine body, the driving mechanism has a rotating shaft provided with multiple slip rings on an outer peripheral surface thereof. When the robot needs to observe the surrounding environment, the driving mechanism can drive the turntable to rotate in a range of 360 degrees, a rotation range of 360 degrees can also be achieved for the distance measuring camera module without moving the body.