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一、轮齿折断轮齿折断的可能起因有二:(1)疲劳折断:(2)冲击折断。1.疲劳折断产生疲劳折断的原因有如下几种可能:(1)载荷分布不均匀;(2)轮齿根部有锐角过渡;(3)由于不适当的锉削或磨削,在轮齿根部产生切痕;(4)过载;(5)扭转振动;(6)轮齿压痕,例如落重碰撞所引起的压痕;(7)淬硬钢具有粗晶马氏体组织;(8)铸造齿轮的轮齿根部存在气孔;(9)表面疲劳麻点接近轮齿根部.2.冲击折断可能产生的原因为:(1)重载荷反复作用;(2)外来硬物卡在齿轮啮合处。3.改进措施对于普通齿轮,是换上新的。对于重型齿轮,可切去断齿和开裂部分,只剩下完整的部
First, the gear teeth off the possible causes of broken teeth there are two: (1) fatigue fracture: (2) impact fracture. 1. There are several possible causes of fatigue breakage due to fatigue fracture: (1) Uneven load distribution; (2) Sharp root transition of gear teeth; (3) Improper filing or grinding, (4) Overload; (5) Torsional vibration; (6) Dental impressions, such as indentations caused by falling weight impact; (7) Hardened steel with coarse-grained martensite structure; (9) the surface fatigue pitting near the tooth roots .2 impact breakage may be due to: (1) heavy load repeatedly; (2) foreign objects stuck in the gear at the gear . 3. Improvement measures For ordinary gear, it is to put on a new one. For heavy duty gears, the broken teeth and the cracked part can be cut off, leaving only the complete part