Research On The Structure And Impactresistant Performance Optimization Of A Cast Robot

In recent years,with the natural disasters,some man-made terrorist events,or the spread of toxic substances and nuclear waste,to our environment has caused a lot of inconvenience and harm,and even seriously affect people's lives and safety.After the disaster occurs,can be the first time to understand the scene of the accident occurred,is very important,but out of the security of human life,people may not be directly to the scene,which may miss the best time,in view of this type of investigation and observation requirements,micro-cast detection robot system will play a key role.Based on the old version of the parabolic robot system,through the actual experiments,we found that the shortcomings,and made corresponding improvements.The contents of this paper and the results obtained are as follows:First,in a series of tests,the old-style cast robot When the height is 3.5meters high,the robot propeller shaft has more serious plastic deformation,through the concrete structure and drop simulation analysis,it is found that the axial clearance of the propeller shaft and the weakness of this structure are the two reasons that can not withstand the impact,after the improvement,the test will be able to withstand the 3 meters height impact,and the structure of the shaft itself is prone to stress concentration problems,New Edition to address these deficiencies.Second,for the cast-in robot system,after throwing can resist enough impact is a necessary condition of the robot,in the new structure of the robot design,not only to optimize the old version of the improper,but also designed a part of the rubber wheel surrounded by the main body structure,in the robot land,greatly reduce the impact of the impact on the drive shaft.Then,based on the dynamic method of finite element display,the key parameters of the structure are optimized and analyzed,and the collision resistance of the robot is evaluated.Third,for the two-wheeled micro-cast robot in the stop process,by the inertia of the robot bottom balance drag tail will be reversed,resulting in chaotic transmission screen,the robot direction lost.Based on the method of speed control of robot,the control robot slowly slows down until it stops smoothly because of the resistance,establishes the simulation control system model and gives themathematical model detailed derivation process,obtains the ideal stop speed and the time relation curve,the reasonable effective solves the stop rollover problem.Finally,the design realizes the micro-mobile robot system with low power consumption,light weight and strong impact resistance,and completes the evaluation of the impact performance of the robot system.