Five types of failure forms of gear teeth and the basis for strength calculation

XNUMX. Damage form: tooth surface wear

1. Working conditions: soft tooth surface, poor lubrication, open transmission

2. Basis for strength calculation: contact strength

XNUMX. Destruction form: tooth surface glued

1. Working conditions: a pair of poor lubricationgearThe material is the same, the tooth surface sliding speed is too high, high-speed rotation, high power, soft tooth surface

2. Basis for strength calculation: contact strength

XNUMX. Damage form: pitting on the tooth surface

1. Working conditions: Too high tooth surface pressure, too high pulsating load, closed transmission

2. Basis for strength calculation: contact strength

Fourth, the form of failure: plastic deformation of the tooth surface

1. Working conditions: heavy load, soft tooth surface

2. Basis for strength calculation: contact strength

XNUMX. Form of failure: broken gear teeth

1. Working conditions: alternating load, shock load, short-term overload

2. Basis for strength calculation: bending strength