Gear transmission is one of the more important forms of mechanical transmission. Gears are the core components of many electromechanical products. As a special type of gears, bevel gears are mainly used to transmit the movement and power between the intersecting shafts. According to the tooth length direction curve The characteristics of spur bevel gears can be divided into straight bevel gears and curved bevel gears. The design and manufacture of straight bevel gears are relatively simple, and they are widely used.Everyone knows that spur bevel gears are tapered, and their tooth profile can be divided into big end and small end. Bevel gears take the big end parameter as the standard value.The accuracy of the calculation of the tooth thickness of the big end of the gear directly affects the pros and cons of the tooth profile machining accuracy of the straight bevel gear.

In the design process of straight bevel gears, tooth thickness is an important tooth profile dimension.The tooth thickness of the big end of the gear can be divided into the thickness of the arc tooth and the thickness of the tooth. The arc tooth thickness refers to the spherical distance between the corresponding points on both sides of the large end of the gear. The black tooth thickness refers to the distance between the corresponding points on both sides of the large end of the gear. Straight-line distance, the current calculation method for the tooth thickness of spur bevel gears mainly uses the tooth profile parameters of the large-end equivalent gear of the spur bevel gear to approximate calculations. Obviously, this method has certain calculation errors and cannot be applied to specific straight teeth. Bevel gear processing parameters are being calculated.

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