Universal caster for robot moving chassis

Abstract

The invention relates to the field of universal casters, in particular to a universal caster for a robot moving chassis. The universal caster comprises a fixing mechanism, a brake mechanism, a travelling mechanism, a clamping mechanism and a cleaning mechanism; two second gears are welded on the surface of a rotating shaft and are respectively connected to first gears located on the surfaces of two connecting shafts through chains in a transmission manner; when the caster rotates, the rotating shaft is driven to rotate, further the connecting shafts rotate and drive fixed shells on the two connecting shafts to rotate, further graves inside travelling grooves are cleared by hairbrushes arranged on the surfaces of the two fixed shells and are prevented from entering between a fixed frame and the caster to stick the caster, and thus, the normal running of the caster is ensured; an operating panel is pushed toward a connecting rod, so that a clamping plate located at the bottom of the connecting rod and having the cross section being of an inverted trapezoidal structure is clamped in a clamping groove being of an inverted trapezoidal structure, further, limited posts located on the two side walls of the clamping plate and being of semi-cylindrical structures are clamped in limited grooves, and thus, the braking is realized. The universal caster is simple to operate and has a good braking effect.

Description

Technical field [0001] The invention relates to the field of universal casters, in particular to a universal caster of a robot mobile chassis. 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, so they cannot rotate horizontally and can only rotate vertically. These two kinds of casters are generally used in combination. For example, the structure of a trolley has two fixed wheels at the front, and two movable universal wheels at the back, which are close to the push armrest. [0003] However, the existing universal casters of the mobile chassis of robots tend to jam the sand and gravel in the ground between the universal wheels and the fixed frame when rotating, and it is not easy to clean the gravel, and it is easy to cause the wheels to jam and cannot walk when the casters...

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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