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Table 1 Detailed description of the six gearbox conditions

From: An Intelligent Fault Diagnosis Method of Multi-Scale Deep Feature Fusion Based on Information Entropy

Fixed-axis gearbox operating conditions

Size of training/testing samples

Condition label

Normal

210/90

1

Gear hub crack

210/90

2

Gear broken teeth

210/90

3

Compound faults 1

210/90

4

Compound faults 2

210/90

5

Compound faults 3

210/90

6

  1. Notes: Compound faults 1, wheel cracks, gear wear, and rolling bearing ball damage; compound faults 2, wheel cracks, broken teeth and rolling bearing ball damage; compound faults 3, gear wear, broken teeth and rolling bearing ball damage