The Study And Development On Intelligent Checking System Of Bevel Gear Transmission

Spiral bevel and hypoid gears have been widely used in the transmission system of automobile as one of the key parts. Their working performance will greatly affect the running quality of automobile. With the increasing requirement of people to the more comfortable automobiles, it is important to reduce the vibration and noise of the spiral bevel. Base on the reason mentioned above ,the study and development of an intelligent system, which can measure and check the transmission quality of spiral bevel and hypoid gears, have important academic signification. The system can be put into practical application in bevel gear industry.In this paper, an intelligent system, which can check the compositive error along the pinion axis and can measure the vibration in location of bearing of headstock, is proposed, In Pro/E is applied to design the mechanical structure and to construct the digital virtual prototype. In this system, the variable frequency motor is applied to meet the requirement of low speed to check the compositive error and high speed to measure the vibration. The torque sensor is used to measure the load. The step motor and ball skew are used to drive the headstock. The system can operate and analyze automatically. A quality standard can be established by checking a batch of gears, which have good quality, on this machine. Then the machine can directly check out the gear parts, which has transmission fault. The frequency spectrum analysis is applied to analyze measuring results.The measuring and controlling software of this intelligent check system is development by using the popular virtual instrument developing tool-LabWindows/CVI. The software realizes the system frame that the control computer is the key part in the system. The software has the virtual instrument panel and it is easy to operate. This software system has five key modules, include the main control module, control module, data collection module, data analysis and disposal module and data management module. With the modularize structure, this software can be easily transformed to another software environment, maintained, upgraded and expanded.The intelligent check system proposed in this paper can be used as the final quality check and quality control tool in spiral bevel and hypoid gear manufacture process. Itwill have great effect to the improvement of product quality spiral bevel and hypoid gears in our country.