A robot mobile chassis universal caster

Abstract

The invention relates to the field of universal casters, in particular to a universal caster for a robot mobile chassis, including a fixing mechanism, a braking mechanism, a running mechanism, an engaging mechanism and a cleaning mechanism; two second gears are welded on the surface of the rotating shaft. The two second gears are respectively connected to the first gears on the surfaces of the two connecting shafts through chain rotation, and when the wheels rotate, the rotating shafts are driven to rotate, which further realizes that the rotating shafts drive the fixed shells on the two connecting shafts to rotate, and then The brushes installed on the surface of the two fixed shells can clean the sand and gravel inside the walking trough, avoiding the sand and gravel entering between the fixed frame and the wheels and causing the wheels to be stuck, ensuring the normal driving of the wheels; push the operation panel in the direction of the connecting rod The clamp plate with inverted trapezoidal structure at the bottom of the connecting rod is snapped into the clamping groove with inverted trapezoidal structure, and then the semi-cylindrical limiting columns located on the two side walls of the clamping plate are engaged with the limiting slot The interior realizes the brake, which is easy to operate and has good braking effect.

Description

technical field [0001] The invention relates to the field of universal casters, in particular to a universal caster for a mobile chassis of a robot. Background technique [0002] The universal wheel is the so-called movable caster, and its structure allows horizontal 360-degree rotation. Casters are a general term, including movable casters and fixed casters. The fixed casters have no rotating structure, and cannot be rotated horizontally but can only be rotated vertically. These two types of casters are generally used together. For example, the structure of the trolley is two fixed wheels on the front, and two movable universal wheels near the push armrest on the back. [0003] However, the swivel casters of the existing mobile chassis of robots tend to trap sand and gravel on the ground between the swivel wheels and the fixed frame when they turn, and it is not easy to clean the sand and gravel, and it is easy to cause the wheels to get stuck and unable to walk , it is ...

AI Technical Summary

Problems solved by technology

[0003] However, the swivel casters of the existing mobile chassis of the robot tend to trap sand and gravel on the ground between the swivel wheels and the fixed frame when they rotate, and it is not easy to clean the sand and gravel, and it is easy to cause the wheels to get stuck and unable to walk , it is impossible to clean the sand and gravel on the wheels while walking, and the existing swivel casters need to spend a lot of effort when braking, and the brake pads are directly attached to the wheels, and the braking effect is poor

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