External Driving Assembly for Wheeled Robot Maintenance
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Solution Overview
Problem
Conventional driving devices for wheeled robots require disassembly of the base to replace the motor, making maintenance cumbersome.
Innovation Solution
The driving device is configured with external driving assemblies that include a motor, omnidirectional wheel, and connection shafts, allowing for replacement without disassembling the base, with a fixing assembly to secure these components externally and a bearing device to reduce friction and improve rotational accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the motor is arranged inside the base of the robot, then the structure is compact, but the motor cannot be easily replaced without disassembling the base
Solution Approach 1:
The driving assembly is segmented into a motor and a wheel assembly that can be independently replaced. The motor is mounted on the base plate while the wheel assembly is separately connected via connection shafts, allowing the wheel assembly to be replaced without removing the motor from the base.
Solution Approach 2:
The wheel assembly is extracted from the base structure and connected via external connection shafts. This allows the wheel assembly to be removed and replaced independently from the base and motor, significantly easing maintenance operations.
2Ease of repair
If the driving assembly is arranged outside the base, then maintenance is easier, but the structural stability may be affected
Solution Approach 1:
The motor and wheel assembly are merged into a single driving assembly unit that is externally mounted on the base. This unified structure maintains stability while allowing the entire assembly to be easily replaced or maintained without disassembling the base.
Solution Approach 2:
The connection shafts are pre-configured with connection assemblies that enable quick attachment and detachment. This preliminary preparation of connection mechanisms allows for rapid maintenance operations without compromising structural integrity during normal operation.
Data Source
AI summary
A driving device of a robot includes at least one driving assembly and a fixing assembly that are arranged outside a base of the robot. The at least one driving assembly includes a motor, an omnidirectional wheel, a connection shaft used to connect an output shaft of the motor to the omnidirectional wheel, and a connection assembly used to connect the connection shaft to the motor and the omnidirectional wheel. The motor, the connection shaft and the omnidirectional wheel are arranged along a radial direction of the base, and the fixing assembly is used to fix the motor to the base of the robot.