Design And Research Of The Transporter Nursing Robot System

Currently the medical device industry has seen a rapid development,however,there is still an insufficiency in the design for the senior bedridden patients and disabled people to help them conveniently move.The traditional approach of transfer is risky and uncomfortable and it insert heavy labor for the nursery work at the same time.Electric wheelchair,the traditional travel tool has limitations due to space constraints.This paper is devoted to the design of an easy transporter nursing robot to solve the problems mentioned above so that more senior patients and disabled individuals can be helped.First of all,this paper clears the basic design principles,the relevant technical indicators and basic functions of the transport care robot.The transporter nursing robot is mechanically block designed packed with a modular design for the removal of the patient,and the outdoor module used for folding,lifting and walking.The transport module is designed to realize double-side moving,which includes an up-running part with lifting function and posture adjusting function and the descending part with the function of walking and bed adjusting.The principle of the transfer module is also described.Secondly,this paper clarifies the design and analysis of the outdoor module.This module includes the design to achieve the folding and lifting function.The paper also makes clear the relevant parameters and forms of movement.The key power components are also determined in this paper.The design of the omnidirectional mobile system of the outdoor module,which consists of structure design and damping design is shown in this part.After that the motor and the gear reducer are selected to meet the design requirements.Then the dynamic analysis of the omnidirectional mobile platform is carried out which includes the analysis of the movement of the rollers in different motion forms and the modifying coefficient during the actual movement is determined.The influence of the friction force on the motion of the roller is clarified.Thirdly,the static stability and dynamic stability of the outdoor module in motion and standing slope are analyzed and the safety is verified.The finite element analysis of the main bearing parts and structure parts of the outdoor module is carried out.The structure is optimized and the rationality and safety of the structure are verified.Finally,the control system of the transporter nursing robot is designed.The master controller is designed to meet all the functions of the robot.At the same time,the wireless remote control for realizing the function integration set of the transport nursing robot is designed and the interface between the deformation surface and the bed is realized by using the ultrasonic distance measuring module.In the end the travel scheme proposed in this paper is verified.