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对一付按给定的条件设计制造的齿轮,在实际工作啮合中,各种制造误差、装配误差以及轴和箱体等的变形都要综合地反映到相啮合轮齿的接触上,这就使得实际接触状态与设计计算所设定的条件有所不同。这是造成设计寿命与使用寿命不一致的一个重要原因。对一个轮齿来说,其载荷分布可分为沿齿高方向和齿长方向来考虑。对低速重载齿轮,沿齿长方向的载荷分布它将成倍的增加齿的接触压应力。两相啮合的轮齿,如果沿齿长方向的接触线达不到理论的长度,则势必在接触线一端紧贴而
For a pair of gears designed and manufactured according to a given condition, various manufacturing errors, assembly errors, deformations of the shaft and the box, etc., are all reflected in the engagement of the meshing teeth in actual work engagement Making the actual contact state and design calculations set the conditions are different. This is an important reason for inconsistency between design life and service life. For a gear tooth, the load distribution can be divided along the tooth height direction and tooth length direction to consider. For low-speed heavy-duty gears, the load distribution along the length of the tooth will multiply the tooth contact compressive stress. If the contact length along the tooth length can not reach the theoretical length, the gear teeth meshing with each other will inevitably cling to one end of the contact wire