麻醉呼吸管路连接牢固度检测设备机械结构设计OA

Objective To develop and design a device for testing whether the assembly joint of the anesthesia breathing tube can be connected to the standard joint(YY/T 1040.1-2015)for connection test and whether separation occurs under a force value of 40 N after connection.Methods Based on the requirements in the standard,the standard joint was connected with the assembly end of the pipeline according to the requirements.At least 150 mm away from the end of the pipeline,a tensile force was applied along the direction of the pipeline axis at a rate of(50±5)mm/min,and the separation of the joint was recorded.The test was carried out in an environment of(42±3)℃.The S7-200 SmartPLC was used as the main controller,including the rotary force measuring module,human machine interface touch screen,execution module,box heating module,hardware system and other control modules to control the force value in the docking test,the rotation Angle,and the rate and temperature in the tensile test.The inspectors conducted connection and tensile tests on the breathing tubes in the constant-temperature insulated box through the human-machine interaction interface.Results According to the requirements,the equipment structure was designed,and the finite element analysis of important components was conducted using the Simulation plugin in SolidWorks.The maximum displacements of the rotating force measurement bracket and the pipeline clamping device were(0.0366±0.0008)and(0.0205±0.0005)mm respectively.Compared with the structure without ribbed plates,the differences were all statistically significant(P<0.001),verifying the stability of the entire institution.Conclusion This equipment can be used in actual production and quality inspection,and can ensure the connection safety of anesthetics and ventilator breathing tubes.