Integrated Mecanum Wheel Structure for Compact Robot Chassis
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Solution Overview
Problem
The structural sizes of mecanum wheels and their drive motors are relatively large, which affects the compactness and performance of assistant robots, leading to issues such as pressure sores and osteoporosis due to long-term use, and difficulties in navigating narrow spaces.
Innovation Solution
The mecanum wheel design integrates the drive device within the wheel axle hole, with a shock absorbing device to reduce structural sizes and enhance mobility, featuring a mecanum wheel body and drive device where the drive device is partially or completely arranged in the wheel axle hole, and a shock absorbing device with elastic elements to absorb shocks during movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the drive device is integrated within the wheel axle hole, then the structural size is reduced and compactness is improved, but the manufacturing complexity increases
Solution Approach 1:
The drive device is integrated within the wheel axle hole, merging two previously separate components (wheel and drive device) into a single unified structure. This reduces the overall structural size and improves compactness while maintaining functional independence through modular design elements.
Solution Approach 2:
The drive device is nested within the wheel axle hole, placing one component inside another. This nesting arrangement maximizes space utilization, reduces the external dimensions of the mecanum wheel assembly, and achieves compact structure without significantly complicating manufacturing processes.
2Ease of manufacture
If the mecanum wheel and drive motor are designed separately, then the manufacturing ease is improved, but the structural size becomes relatively large affecting compactness
Solution Approach 1:
The patent merges the separately designed mecanum wheel and drive motor into an integrated assembly where the drive device is positioned within the wheel axle hole. This combination reduces the overall structural size while maintaining the manufacturing advantages of having distinct functional components that can be manufactured independently and then assembled.
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
This integration results in a more compact structure for assistant robots, reducing the risk of pressure sores and osteoporosis, and enables smoother navigation in tight spaces while improving the reliability and maintenance of the equipment.
Implementation Method 1
a shock absorbing device with elastic elements to absorb shocks during movement
Data Source
AI summary
Disclosed is a mecanum wheel, including a mecanum wheel body and a drive device. A wheel axle hole is formed in the mecanum wheel body. The drive device is partially or completely arranged in the wheel axle hole. The axis of a connecting shaft of the drive device is collinear with a rotary shaft of the mecanum wheel body, and the mecanum wheel body rotates along with a housing of the drive device. Further disclosed are a mecanum wheel with a shock absorbing device, a chassis including at least one pair of mecanum wheels, and an assistant robot including a chassis.