Multi-stage sleeve type lifting mechanism for robot

Abstract

The invention discloses a multi-stage sleeve type lifting mechanism for a robot. The mechanism includes a driving assembly, a reel, a flat belt bogie and a multi-stage sleeve, wherein the multi-stagesleeve is a rectangular parallelepiped sleeve, the multi-stage sleeve comprises an outermost sleeve, multiple intermediate sleeves and an innermost sleeve, the bottom of the innermost sleeve is fixedly provided with a bottom plate, the driving assembly and a drum are driven by a synchronous belt, the drum is connected with the bottom plate through a flat belt, a top stop plate, a bottom stop plateand a guide plate are arranged between two adjacent-stage sleeves, an expansion plate spring is arranged in the middle of the guide plate, when the flat belt winds to drive the multi-stage sleeve toexpand and contract, that the sleeves are stably clamped to each other without twisting or falling off can be guaranteed by the structure. Compared with the prior art, the structure has good rigidity,high stability, can prevent twisting and has high positioning precision.

Description

technical field [0001] The invention belongs to the technical field of robots, and in particular relates to a multi-stage sleeve-type lifting mechanism for a robot. Background technique [0002] At this stage, with the development of robot technology, various intelligent inspection and monitoring robots are more and more widely used, and are mostly used in large supermarkets, warehouses, farms, factories, power distribution rooms, substations and other places. The height of each monitoring point is also different, and the height difference is getting bigger and bigger. The traditional pan-tilt rotation alone can no longer fully cover the monitoring range. There is an urgent need for a robot capable of three-dimensional monitoring, so a robot lifting mechanism has emerged as the times require. [0003] The solution of prior art 1: a multi-stage lifting mechanism, driven by a motor, with a single guide rail and a slider as a guiding device, and adopts the pulley principle. W...

AI Technical Summary

Problems solved by technology

[0005] 1. A single guide rail is used as a guide. Due to the slender mechanism, the structure is unstable, and the gap is large and easy to deform;

[0006] 2. The wire rope is wound on the reel, the rope is difficult to arrange, the positioning accuracy is not accurate, and the lifting speed is uneven;

[0007] 3. The descent is driven by gravity, the motor releases the wire rope, and it is easy to shake up and down during movement;

[0008] 4. The mechanism load is easy to swing due to the influence of external inertial force

[0011] 1. The scissor mechanism is not beautiful, and the cables and flat belts are exposed and cannot be hidden;

[0012] 2. The scissor mechanism has many movable joints, the gap is easy to accumulate, and the angle of the scissors is uneven;

[0013] 3. The scissor mechanism has low rigidity and is easy to swing;

[0014] 4. The force on both sides of the double scissors structure is uneven, and the scissors are easy to tilt

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