Research On Wheel-track Combined Greenhouse Agricultural Robot Based On AD And TRIZ

In recent years,industrial structure of Chinese agriculture has been continuously improved.Greenhouse agriculture,as a basic industry,has driven the rapid development of greenhouse agricultural robots.As the mobile carrier of greenhouse agricultural robot,chassis device is of great significance to improve operation efficiency and reduce labor costs.Therefore,the structural design and theoretical method of greenhouse agricultural robot chassis and its vehicle are deeply studied in this paper.Aiming at the four links of demand analysis,function research,simulation verification and scheme evaluation in product design.An innovative design model based on AD and TRIZ theory is proposed and applied to the conceptual design of greenhouse agricultural robot.The integrated design method not only provides a new idea for the design of greenhouse agricultural robot,but also has a certain reference value for the development of greenhouse agricultural equipment in the future.The main contents of this paper are as follows:(1)The traditional user requirements acquisition method has uncertainty and randomness.The fuzzy Kano model is used to construct the user demand matrix,so that the obtained demand parameters are diversified and personalized.(2)The advantages and disadvantages of axiomatic design and TRIZ theory are deeply studied.This paper studies the integration mechanism of the two theories,constructs an innovative design model based on AD and TRIZ.And this model is applied to the design of greenhouse agricultural robot.(3)In order to measure the advantages and disadvantages of the design scheme of greenhouse agricultural robot,a fuzzy comprehensive evaluation method based on information axiom is proposed in order to select the optimal design scheme.(4)In order to verify the universality of the chassis,three kinds of vehicles are designed: picking manipulator,pesticide applicator and flower carrier.The dynamic analysis of the robot chassis is carried out under different road conditions,and the stability and climbing performance of the chassis are verified.At the same time,the static analysis of greenhouse agricultural robot is carried out,and the results show that the design meets the basic strength requirements.Aiming at the problem of large material strength surplus,the optimization design is carried out to realize the lightweight of the robot structure design.