Mechanism Design And Simulation Analysis Of A Power Self-support Pipeline Cleaning Robot

With the improvement of living standards,tap water has entered the tens of thousands of households.And the water pipe was also developed from the original concrete pipe to the diversified pipe structure,which is mainly made of cast iron pipes and supplemented by other pipes.However,with the using of cast iron pipes,it will form a mixture of rust and microbial in the pipe inner wall.The existing of such mixture,not only increased the energy consumption,but also increased the probability of secondary pollution.In This paper,we taken cast iron pipe with diameter of 200 millimeter as the research object,and designed a power self-support pipeline cleaning robot.This robot is produced mainly for cleaning up the mixture in inside wall of tap pipe.First of all,we introduced the mainly materials of pipelines with the help of former researches which have been done by others.By the mean time,we discussed the harmful of mixture for people's healthy.By doing so,we found that the material and working time of the water supply pipeline are the key factors which affect the thickness and hardness of the inner wall corrosion layer.Secondly,the design requirements of the pipeline cleaning robot are proposed.After that,the whole robot is divided into three parts: power generation part,cleaning part and speed control part.And we also introduced each part of the robot in detail.Thirdly,we analyzed the cleaning ability and moving ability of the robot,when it is working in the pipeline.The results showed that the robot can walking and cleaning only by the power of water in the pipe,easily.With such advantage,the robot is easy to achieve the goal of long distance walking in the pipeline.At last,the analysis software is used to check whether or not the cleaning structure is meeting the requirements——Extending the cleaning blades or Retracting.When we gave the drive body with a rotation of clockwise,and found that the blades could extend from the limit slot easily.And the distance between blades and the inside wall of the pipe is about 100 mm.When we gave the drive body a rotation of anticlockwise,the cleaning blades could retract into the limit slot easily,too.With this method,we found that the design is really good,and meeting the design requirements well.