Unmanned distribution robot chassis assembly and unmanned distribution robot

Abstract

The invention provides an unmanned distribution robot chassis assembly and an unmanned distribution robot. The unmanned distribution robot chassis assembly comprises a frame, a front axle assembly anda rear axle assembly, wherein the front axle assembly comprises an independent suspension system and a steering system, one end of the independent suspension system is suspended on the frame, the other end of the independent suspension system is rotationally connected with front wheels, so that the front wheels can move in the direction vertical to the ground relative to the frame, the steering system is fixed on the frame, a rack of the steering system is connected with the front wheels through rotatable connecting rods and steering knuckles and is used for driving the rack to move so as todrive the front wheels to turn, the rear axle assembly is connected with rear wheels, a driving part and the frame, and driving force of the driving part is transmitted to the rear wheels through therear axle assembly.

Description

technical field [0001] The present disclosure relates to the field of warehousing and logistics, and more specifically, relates to a chassis assembly of an unmanned delivery robot and an unmanned delivery robot. Background technique [0002] There are two types of chassis for unmanned delivery robots. One uses electric differential speed, which does not have an independent steering structure. The steering of the vehicle is realized by controlling the wheel speed difference between the left and right wheels. The other has an independent steering system. The frame adopts non-independent suspension system. [0003] In the process of realizing the disclosed concept, the inventors found that there are at least the following problems in the prior art: for the robot chassis of the electric differential, since there is no independent steering system, the differential steering is likely to cause tire wear, and the electric differential During the tire steering process, the robot cha...

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Problems solved by technology

[0003] In the process of realizing the disclosed concept, the inventors found that there are at least the following problems in the prior art: for the robot chassis of the electric differential, since there is no independent steering system, the differential steering is likely to cause tire wear, and the electric differential During the tire steering process, the robot chassis is affected by sliding friction, which consumes more energy than rolling friction

For the non-independent suspension chassis, due to the large unsprung mass, it is not conducive to the handling and stability of the vehicle. Moreover, during the movement of the non-independent suspension chassis, at a single high point on the road surface, the tires will hang in the air. The chassis belongs to Instantaneous out-of-control state, which is not conducive to the control of the robot

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