本文概述了东风_4型内燃机车运用新的和不同磨损程度的牵引齿轮在试验台上进行静载和动载对比试验的情况和试验结果。牵引齿轮过量磨损会引起牵引电动机及传动装置剧烈振动,电动机换向性能恶化,电枢转轴应力和齿轮齿根应力增大,转轴和车轴产生扭振,有关零部件过早损坏,并使电动机和传动装置传输效率下降,因此,应该严格控制装车牵引齿轮的齿形偏差。 This paper summarizes the situation and test results of the static and dynamic load-bearing tests on the test rig of the Dongfeng-4 diesel locomotive using new and different degrees of wear traction gear. Excessive traction gear traction can cause traction motor and transmission violent vibration, motor commutation deteriorated, armature shaft stress and gear tooth root stress increases, shaft and axle torsional vibration, the premature failure of parts and components, and the motor and Transmitter transmission efficiency decreased, therefore, should be strictly controlled loading traction gear tooth shape deviation.