Research On Medical Auxiliary Shift Robot

This is an era of advanced medical science,but patients with cardiovascular and cerebrovascular diseases,spinal injury,bone trauma,patients requiring CT examination,and patients who need to be transported before surgery,there still not free from the hard work of the medical staff to carry the patient,and it is likely to aggravate the patient's pain,and the emergence of the displaced robot is the overall solution of the above problem,open the new era of hospital transport,let the medical workers move patients into history.Based on the principles of ergonomics.This paper aims to design a new type of medical assistant shift robot which can move the patients according the diffrent patient's request.The robot can reduce the physical contact between the patient and the medical staff,thereby reducing infection,secondary injury and other conditions,as well as the shortage of medical staff.The robot can not only move the patient's body,but also can change the position of the patient,reducing the incidence of bedsore in the paralyzed patient.The medical assistant shift robot designed in this paper consists of a telescopic shift mechanism,a posture transformation mechanism,a lifting mechanism,a full-range moving chassis and a control system,and study via mathematical modeling,theoretical analysis,software simulation combined.The direct effect of the medical assistant shift robot is human,therefore,this paper constructs a simple human body model by using ANSYS finite element software.Based on the principle of ergonomics,eight-bar-bar position changing mechanism is designed.In order to ensure the stability of the operation of the mechanism and obtain the better practical performance,the optimization design is carried out for the eight-link attitude transformation mechanism.According to the requirements of the eight connecting rod position transformation mechanism process characteristics as well as the specific constraints and the optimization goal,constructs the mathematical model of the eight linkage,eight linkage was established based on Adams/View of optimization design model,optimized design of eight connecting rod mechanism.Omni-directional mobile chassis design buy four Mecanum wheels design,use the four wheels together not only satisfy the bend,forward,backward,such as walking function,but also can realize the function of the lateral movement and goes around itself,makes the medical auxiliary displacement of the robot has good flexibility,high maneuverability and accurate positioning function.Based on Pro/E 3d design software to complete the medical auxiliary shift the robot's mechanical design,3d view,and engineering drawing of drawing,and parts and components into a whole,through the design software of 3 d design software.On the basis of theoretical analysis and structural design,because of the large number of mechanical parts,the assembly process is complicated.So this chapter mainly introduced the telescopic shift module,eight connecting rod attitude transformation mechanism,lifting mechanism,omnidirectional mobile chassis of the main modules such as mechanical design,working principle and installation method.At the same time,in the process of mechanical design,It also lays a foundation for the installation of the electrical components and the wiring of the electronic control system.Conclusion:Disabled people in the case of lying,through the medical auxiliary displacement of robot,auxiliary without health care providers,and can effectively implement security shift object transfer,automatic lifting,omni-directional mobile and precise positioning,has reached the requirement of the robot design.