Robot Lifter Cogwheel Orientation for Elevation Traversal
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Solution Overview
Problem
Existing traversing mechanisms for robotic vehicles in warehouses are limited, as they either cannot climb elevations or carry payloads, leading to cumbersome and time-intensive processes, and suffer from issues like slippage and incorrect wheel angles.
Innovation Solution
A lifter system with a movable platform and cog wheels that automatically adjust their orientation to engage with a fixed teeth structure, allowing efficient traversal of robotic vehicles across planar surfaces and elevated locations, including depositories, by using a central processing system to track and control the robot's position and adjust the cog wheel orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If robotic vehicles use wheel-based traversal on planar surfaces, then they can move efficiently on floors, but they cannot climb elevations
Solution Approach 1:
The robotic vehicle dynamically switches between wheel-based mode for planar traversal and cogwheel-based mode for elevation climbing. The cogwheels are deployed or engaged only when elevation changes are detected, allowing the vehicle to adapt its traversal mechanism to the terrain requirements while maintaining efficiency on flat surfaces.
Solution Approach 2:
The robotic vehicle integrates multiple traversal mechanisms (wheels and cogwheels) into a single platform, enabling it to perform both planar movement and elevation climbing functions. This multi-functional design eliminates the need for separate vehicles for different terrain types.
2Adaptability or versatility
If robotic vehicles are equipped with climbing mechanisms, then they can traverse elevations, but they cannot carry payloads
Solution Approach 1:
The climbing mechanism (cogwheels) is integrated directly into the payload-carrying platform, merging the elevation traversal function with the payload carrying capability. The payload platform itself becomes the climbing surface, eliminating the need for separate climbing apparatus.
3Reliability
If manual transfer of payload to climbing vehicles is used, then elevation traversal is achieved, but the process is cumbersome and time-intensive
Solution Approach 1:
The robotic vehicle performs its own payload transfer by seamlessly transitioning from wheel-based to cogwheel-based traversal. The vehicle maintains continuous movement and payload security during the mode switch, eliminating manual intervention and minimizing traversal time.
4Ease of manufacture
If fixed angle cogwheels are used for climbing, then structure is simple, but slippage occurs on the traversal track
Solution Approach 1:
The cogwheels are designed with adjustable orientation capability, allowing them to dynamically change their angle relative to the traversal track. This adjustment optimizes the engagement between cogwheel teeth and track features, preventing slippage while maintaining a relatively simple overall structure.
Solution Approach 2:
The orientation angle of the cogwheels is changed as a controllable parameter to match the traversal track geometry. By adjusting this parameter, the system achieves optimal mechanical engagement without requiring complex structural modifications to the cogwheels themselves.
5Ease of operation
If incorrect angle of approach between cogwheels and track is used, then alignment is simple, but traversal fails
Solution Approach 1:
The system uses feedback from sensors or positioning systems to detect the approach angle between the robotic vehicle and the traversal track. This information is used to adjust the cogwheel orientation in real-time, ensuring correct alignment and reliable teeth engagement during the climbing process.
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
Enables efficient, cost-effective, and automated navigation of robotic vehicles across multiple levels, reducing manual intervention and improving traversal efficiency by ensuring correct wheel engagement and minimizing slippage.
Implementation Method 1
engaging the teeth of the at least one cog wheel with the fixed teeth structure
Data Source
AI summary
A lifter system based traversal mechanism for a robot includes detection of the robot at a predetermined distance from a movable platform. The movable platform is part of the lifter system. Teeth orientation of cog wheels of the robot are changed to match teeth orientation of teeth of a fixed teeth structure of the movable platform. The movable platform is moved in to a predetermined proximity of the robot so that teeth are engaged. The movable platform takes the robot from a first position to a second position. On reaching the second position the robot is disengaged from the movable platform.