Bogie device and mobile robot including the same

Bogie device for mobile robots based on rocker-bogie mechanism with active power transmission

This technology is a bogie device and mobile robot that optimizes obstacle traversal efficiency by actively lifting the front wheel module through a frame and power transmission mechanism that connects the front and rear wheel modules based on a rocker-bogie mechanism.

Existing rocker-bogie mechanisms rely solely on friction between the wheels and the ground when overcoming obstacles, making active climbing difficult and limiting efficiency due to insufficient upward rotational force at the front wheels.

This technology secures mechanical stability by directly transmitting power from the drive unit to the front and rear wheel power transmission members within a swing-axis-based rocker-bogie structure, incorporating tension rollers and dampers. It can be applied to outdoor patrol robots, rough-terrain exploration, and delivery robots, allowing them to actively overcome obstacles rather than relying on friction.

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Key Features:

• A bogie device connected to both the left and right sides of the front area of the frame, and rear wheels connected to the rear area.
• A pair of rocker connecting members coupled to the frame and spaced apart by a predetermined distance on both sides of the connection point.
• A pair of bogie connecting members positioned in the space between the rocker connecting members, into which the swing axis is inserted.
• A configuration of bogie connecting members arranged to rotate relative to the rocker connecting members via the rotation of the swing axis.