用中心投影法作直齿圆锥齿轮的仿真模型

Simulation Model of Straight Bevel Gear by the Central Projection

为了建立直齿圆锥齿轮的草图和仿真模型数据库,建立了圆锥齿轮齿廓渐开线的数学模型,并用中心投影法把形成圆锥齿轮齿廓的球面渐开线近似投影成圆的渐开线。根据机械设计的原理,在CAD作图软件的基础上,作出圆锥直齿轮仿真模型的数据库。研究结果表明,建立这样的仿真模型和数据库能在很大程度上方便直齿圆锥齿轮的设计和加工,能大大减小直齿圆锥齿轮的设计和加工成本,同时对于齿轮的教学培训也有很有帮助。

In order to establish the straight bevel gear sketches and simulation model database,the straight bevel gear profile involute mathematical model is established,and a bevel gear tooth involute profile of the spherical projection formed into the circle involute by using the central projection.According to the principle of mechanical design,a straight bevel gear simulation model database is built based on CAD software.The results show that the design and processing straight bevel gear is convenience in a large degree by building the simulation model and database,the cost of design and processing for straight bevel gear can be reduced greatly,and it is helpful for teaching and training of gear.