Design and Test of the Gear Transmission Performance Detection System
The working pressure angle and the contact ratio of the gear mechanism are changed by factors such as manufacturing accuracy,load,tooth profile wear and deformation,resulting in the decrease of smoothness and continuity of gear mechanism.To detect the meshing parameters of gears,the gear transmission performance detection system was designed based on machine vision technology.The system consists of a gear train,a transmission device,a measuring device,and an image analysis system.The im-ages of gear meshing were captured with an industrial camera,and the data were analyzed with the least square fitting,so that the pitch circle,the working pressure angle and the contact ratio of the gear transmission were detected.Experimental results showed that the relative error between the actual value and the theoretical value was less than 5％.The detection system has the ad-vantages of efficient,real-time,non-contact,and provides technical support for gear intelligent manufacturing and detecting.
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